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1

Microsoft PowerPoint - EIA 2008 Energy Conference - Halff - 2008 04 07  

U.S. Energy Information Administration (EIA) Indexed Site

a Rapidly Changing Sector 2008 Energy Conference, Energy Information Agency Washington DC, April 7, 2008 Antoine Halff, Head of Commodities Research antoine.halff@newedgegroup.com 2 April 7, 2008 2008 EIA Energy Conference antoine.halff@newedgegroup.com The surveys the market loves to hate Oil analysts of all stripes spend an inordinate amount of time poring over, forecasting, second-guessing EIA oil data - most of all WPSR (the 'weeklies') *US still acounts for nearly ¼ of global oil market, > 60% of the OECD gasoline market *EIA data peerless in scope, detail, timeliness *Global price impact, beyond the US market *Easy target 3 April 7, 2008 2008 EIA Energy Conference antoine.halff@newedgegroup.com 'Reasons' to pick on EIA data 1. Parochialism. The market is changing. Non-OECD demand is

2

E-Print Network 3.0 - antoine galland mathieu Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

for: antoine galland mathieu Page: << < 1 2 3 4 5 > >> 1 Controlling and Optimizing the Usage of One Antoine Galland 1;3 and Mathieu Baudet 2 Summary: Controlling and Optimizing...

3

E-Print Network 3.0 - antoine lacassagne institute Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Vensac, cap. 42 pierre Fourcade, ng. Fourcade fils... Guillot. antoine Nestier, marchand, Larose. franois Labarriere, Barbeyre. dominique Laferriere Source:...

4

Spatial Computing as Intensional Data Parallelism Antoine Spicher, Olivier Michel  

E-Print Network [OSTI]

Spatial Computing as Intensional Data Parallelism Antoine Spicher, Olivier Michel LACL Universit to illustrate this statement. Keywords-spatial computing, collection, data-fields, data flow, declarative definition, intensionnal programming, stream, data parallelism I. SPATIAL COMPUTING It is customary to make

Paris-Sud XI, Université de

5

INFORMED AUDIO SOURCE SEPARATION: A COMPARATIVE STUDY Antoine Liutkus1  

E-Print Network [OSTI]

INFORMED AUDIO SOURCE SEPARATION: A COMPARATIVE STUDY Antoine Liutkus1 Stanislaw Gorlow2 Nicolas separation algorithms is to recover the con- stituent sources, or audio objects, from their mixture. How. Informed Source Separation (ISS) is a solution to make separation robust when the audio objects are known

Paris-Sud XI, Université de

6

E-Print Network 3.0 - antoine beclere hospital Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

beclere hospital Search Powered by Explorit Topic List Advanced Search Sample search results for: antoine beclere hospital Page: << < 1 2 3 4 5 > >> 1 DELEGUEE de la Directrice...

7

Cycle spaces in topological spaces Antoine Vella and R. Bruce Richter  

E-Print Network [OSTI]

Cycle spaces in topological spaces Antoine Vella and R. Bruce Richter University of Waterloo 19, and simplify previous work on cycle spaces of infinite graphs. We give simple topological criteria to show that the fundamental cycles of a (generalization of a) spanning tree generate the cycle space in a connected, compact

Richter, R. Bruce

8

Continuum modeling of a neuronal cell under blast loading Antoine Jrusalem a,  

E-Print Network [OSTI]

2012 Keywords: Continuum model Neuron Blast Cell damage Traumatic brain injury a b s t r a cContinuum modeling of a neuronal cell under blast loading Antoine Jérusalem a, , Ming Dao b by proposing a continuum model of a neuronal cell submitted to blast loading. In this approach, the cytoplasm

Suresh, Subra

9

Single-molecule studies of complex systems: the replisome Antoine M. van Oijen  

E-Print Network [OSTI]

Single-molecule studies of complex systems: the replisome Antoine M. van Oijen Received 30th August and reaction mechanisms. An important future goal is extending the applicability of single-molecule techniques will be used as an example to illustrate recent progress in the development of various single-molecule

10

Arbitrary Nesting of Spatial Computations Antoine Spicher, Olivier Michel, Jean-Louis Giavitto  

E-Print Network [OSTI]

Arbitrary Nesting of Spatial Computations Antoine Spicher, Olivier Michel, Jean-Louis Giavitto LACL-louis.giavitto@ircam.fr Abstract--Modern programming languages allow the definition and the use of arbitrary nested data structures but this is not generally considered in unconventional programming models. In this paper, we present arbitrary nesting

Paris-Sud XI, Université de

11

Slide 1  

U.S. Energy Information Administration (EIA) Indexed Site

a Petroleum: Keeping Pace with a a Petroleum: Keeping Pace with a Rapidly Changing Sector Rapidly Changing Sector Energy Information Administration 2008 Energy Conference 30 Years of Energy Information and Analysis Washington, DC April 7, 2008 John Cook Director Petroleum Division Distinguished Panel Members Distinguished Panel Members Jan Stuart Global Oil Economist and Executive Director UBS Investment Research Antoine Halff Head of Commodities Research Newedge Group David Knapp Senior Editor, Global Oil Markets Managing Director, Energy Intelligence Research, EIG U.S. Oil Statistics: Who Uses & Why U.S. Oil Statistics: Who Uses & Why * What role does EIA's oil data play in price formation? - Add to market transparency and efficiency? - Or add to volatility? * Who uses the data? Why and how? -

12

Franois Antoine Valentin Riccoboni (1707-1772): Vita, attivit teatrale, poetica di un attore-autore nellEuropa dei Lumi.  

E-Print Network [OSTI]

??Franois Antoine Valentin Riccoboni, attore nato a Mantova nel 1707, allalba del nuovo secolo, debutt a Parigi nel 1726. La sua attivit artistica si svilupp (more)

DE LUCA, EMANUELE

2013-01-01T23:59:59.000Z

13

Head, Henry  

Science Journals Connector (OSTI)

Abstract English neurologist Sir Henry Head (18611940) conducted pioneering clinical studies of the somatosensory system, in addition to conducting important neurophysiological studies of respiratory control mechanisms. Head has been considered as one of the great English clinical neurologists and was a teacher of infectious enthusiasm and vitality. Although some of Head's conceptual contributions have not stood the test of time, his diverse contributions were very influential. Among his many contributions were Head's paradoxical reflex (a positive feedback mechanism, which is inter alia important for the first breath of babies), the first reasonably accurate dermatomal map (HeadCampbell dermatomal map), description of the process of recovery from experimental peripheral nerve transection (in himself), the HeadRiddoch syndrome of autonomic dysreflexia, the mass reflex with recovery from spinal shock after spinal cord transection, and the clinically useful distinction between body schema and body image.

D.J. Lanska

2014-01-01T23:59:59.000Z

14

Evaluation of Model based Tracking with TrakMark Dataset Antoine Petit Guillaume Caron Hideaki Uchiyama Eric Marchand  

E-Print Network [OSTI]

Evaluation of Model based Tracking with TrakMark Dataset Antoine Petit Guillaume Caron Hideaki in the INRIA La- gadic team with a TrakMark dataset. Since these methods are based on a 3D model based approach, we selected a dataset named "Con- ference Venue Package 01" that includes a 3D textured model

Paris-Sud XI, Université de

15

A Review of "Antoine Furetire: Un Prcurseur des Lumires" by Alain Rey  

E-Print Network [OSTI]

of Fureti?re and Rey. Like Fureti?re, Rey has been silenced by the French government. In 2006 Rey was fired from his radio show by the head of Radio France, Jean-Paul Cluzel, an appointee of French president Nicolas Sarkozy. Like Fureti?re, Rey promotes... of Fureti?re and Rey. Like Fureti?re, Rey has been silenced by the French government. In 2006 Rey was fired from his radio show by the head of Radio France, Jean-Paul Cluzel, an appointee of French president Nicolas Sarkozy. Like Fureti?re, Rey promotes...

Eick, David

2009-01-01T23:59:59.000Z

16

Bottom head assembly  

DOE Patents [OSTI]

A bottom head dome assembly is described which includes, in one embodiment, a bottom head dome and a liner configured to be positioned proximate the bottom head dome. The bottom head dome has a plurality of openings extending there through. The liner also has a plurality of openings extending there through, and each liner opening aligns with a respective bottom head dome opening. A seal is formed, such as by welding, between the liner and the bottom head dome to resist entry of water between the liner and the bottom head dome at the edge of the liner. In the one embodiment, a plurality of stub tubes are secured to the liner. Each stub tube has a bore extending there through, and each stub tube bore is coaxially aligned with a respective liner opening. A seat portion is formed by each liner opening for receiving a portion of the respective stub tube. The assembly also includes a plurality of support shims positioned between the bottom head dome and the liner for supporting the liner. In one embodiment, each support shim includes a support stub having a bore there through, and each support stub bore aligns with a respective bottom head dome opening. 2 figs.

Fife, A.B.

1998-09-01T23:59:59.000Z

17

Maneuvering impact boring head  

DOE Patents [OSTI]

An impact boring head may comprise a main body having an internal cavity with a front end and a rear end. A striker having a head end and a tail end is slidably mounted in the internal cavity of the main body so that the striker can be reciprocated between a forward position and an aft position in response to hydraulic pressure. A compressible gas contained in the internal cavity between the head end of the striker and the front end of the internal cavity returns the striker to the aft position upon removal of the hydraulic pressure. 8 figs.

Zollinger, W.T.; Reutzel, E.W.

1998-08-18T23:59:59.000Z

18

Optical properties are an important way to understand how climate change is altering the oceans we rely on. Dr David Antoine leads the BIOCAREX project in improving analysis of optical  

E-Print Network [OSTI]

outline the context from which the BIO-optics and CARbon EXperiment (BIOCAREX) emerged? The project grew rely on. Dr David Antoine leads the BIOCAREX project in improving analysis of optical properties. Here the intensity of light in various spectral domains, hence the changes in water colour. Do you foresee any

Antoine, David

19

Child Abuse; Head Injuries  

Science Journals Connector (OSTI)

Abstract Abusive head trauma produces the most long-term morbidity and mortality of all forms of child physical abuse and impacts up to 30 infants per 100000 births. A great deal of the scientific and lay press has focused on the changes in understanding and the purported controversies surrounding this entity. At the same time, the evidence base for a probabilistic analysis of head injuries and related trauma promises to make the diagnosis more objective, nuanced, and accurate.

S.C. Boos

2014-01-01T23:59:59.000Z

20

Heater head for stirling engine  

DOE Patents [OSTI]

A monolithic heater head assembly which augments cast fins with ceramic inserts which narrow the flow of combustion gas and obtains high thermal effectiveness with the assembly including an improved flange design which gives greater durability and reduced conduction loss.

Corey, John A. (R.D. #2, Box 101 E, North Troy, NY 12182)

1985-07-09T23:59:59.000Z

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Heater head for Stirling engine  

SciTech Connect (OSTI)

This patent describes a heater head for a Stirling engine comprising: a housing for enclosing the heater head with gas at a substantial elevated pressure; insulator means attached to the housing for insulating the heater head; inlet means attached to a regenerator in the housing for admission of relatively high pressure working fluid from the regenerator of a Stirling engine; a first annular heating wall in the housing attached to the inlet means for heating the working fluid; and, a second annular heating wall in the housing concentric with the first heating wall but of lesser diameters so that an annular space is formed between the first heating wall and the second heating wall for heating working fluid; and a third heating wall in the housing concentric with and smaller in diameter than the second heating wall forming the condensing area of a heat pipe between the second heating wall and the third heating wall.

White, M.A.; Emigh, S.G.

1987-06-09T23:59:59.000Z

22

Pressure testing of torispherical heads  

SciTech Connect (OSTI)

Two vessels fabricated from SA516-70 steel with 6% knuckle radius torispherical heads were tested under internal pressure to failure. The D/t ratios of Vessel 1 and Vessel 2 were 238 and 185 respectively. The calculated maximum allowable working pressures of Vessel 1 and 2 heads using the ASME Section 8, Div. 1 rules and measured dimensions were 85 and 110 psi, respectively. Vessel 1 failed at a nozzle weld in the cylindrical shell at 700 psi pressure. Neither buckling nor any other objectionable deformation of the head was observed at a theoretical double-elastic-slope collapse pressure of 241 and a calculated buckling pressure of 270 psi. Buckles were observed developing slowly after 600 psi pressure, and a total of 22 buckles were observed after the test, having the maximum amplitude of 0.15 inch. Vessel 2 failed at the edge of the longitudinal weld of the cylindrical shell at 1,080 psi pressure. Neither buckling nor any other objectionable deformation of the head was observed up to the final pressure, which exceeded the theoretical double-elastic-slope collapse and calculated buckling pressures of 274 psi and 342 psi, respectively.

Rana, M.D. [Praxair, Inc., Tonawanda, NY (United States). Research and Development Dept.; Kalnins, A.; Updike, D.P. [Lehigh Univ., Bethlehem, PA (United States)

1995-12-01T23:59:59.000Z

23

The 'Sphinx' Head from the Cult Center at Mycenae  

E-Print Network [OSTI]

This study identifies the well-known plaster female head (often called a sphinx head) as the head of a cult statue.

Rehak, Paul

2005-01-01T23:59:59.000Z

24

Characterization of Thermal Response Induced by Head/Disk Interaction in Current TGMR Head  

E-Print Network [OSTI]

, resulting in variations in head flying characteristics. Therefore, head- disk interaction in real disk driveCharacterization of Thermal Response Induced by Head/Disk Interaction in Current TGMR Head Suwatana with a lower areal resistance (RA) value. However, as the areal density increases, the actual flying clearance

Kovintavewat, Piya

25

Reactor Pressure Vessel Head Packaging & Disposal  

SciTech Connect (OSTI)

Reactor Pressure Vessel (RPV) Head replacements have come to the forefront due to erosion/corrosion and wastage problems resulting from the susceptibility of the RPV Head alloy steel material to water/boric acid corrosion from reactor coolant leakage through the various RPV Head penetrations. A case in point is the recent Davis-Besse RPV Head project, where detailed inspections in early 2002 revealed significant wastage of head material adjacent to one of the Control Rod Drive Mechanism (CRDM) nozzles. In lieu of making ASME weld repairs to the damaged head, Davis-Besse made the decision to replace the RPV Head. The decision was made on the basis that the required weld repair would be too extensive and almost impractical. This paper presents the packaging, transport, and disposal considerations for the damaged Davis-Besse RPV Head. It addresses the requirements necessary to meet Davis Besse needs, as well as the regulatory criteria, for shipping and burial of the head. It focuses on the radiological characterization, shipping/disposal package design, site preparation and packaging, and the transportation and emergency response plans that were developed for the Davis-Besse RPV Head project.

Wheeler, D. M.; Posivak, E.; Freitag, A.; Geddes, B.

2003-02-26T23:59:59.000Z

26

Head wear reduction in future hard-disk drives  

Science Journals Connector (OSTI)

Head wear and head vibration due to head-disk contact are two main issues that must be resolved for the future high-density Hard Disk Drives (HDDs). To reduce head wear, disk lubricant, carbon overcoat films on head and disk surfaces, head flying characteristics and so on have been studied. In this paper, we first show the effects of several parameters on head wear, including lubricant types, their MW, and disk burnishing. Our recent results on the effects of humidity and temperature on head wear are also explained. We then explain our extended wear equation and estimate the head wear life with present technologies.

Youichi Kawakubo; Shinnichi Nakazawa; Shinnichi Kobatake

2008-01-01T23:59:59.000Z

27

Research CtteeEducation Div Heads Faculty  

E-Print Network [OSTI]

& Action Plans School Review Reports Review Co-ordinator drafts Report Report sent to Chair of review panel and approved by UPARC School Review Action Plan Review Co-ordinator sends Action Plan template for completion (and Review Report for information) to Faculty School Relevant Divisional Head/s Complete Action Plan

Bristol, University of

28

RICHARD N. PALMER Professor and Head  

E-Print Network [OSTI]

Resources Engineers, #00191 Professional History Professor and Head, Department of Civil and Environmental1 RICHARD N. PALMER Professor and Head Department of Civil and Environmental Engineering University.D. Environmental Engineering, Johns Hopkins University 1979 M.S. Environmental Engineering, Stanford University

Mountziaris, T. J.

29

Head of Safety 020 7679 1948  

E-Print Network [OSTI]

Head of Safety Paul Stirk 020 7679 1948 (Internal 41948) p.stirk@ucl.ac.uk Deputy Head of Safety & Biological Safety Advisor Jillian Deans 020 7679 1814 (Internal 41814) j.deans@ucl.ac.uk Safety Training Manager Kuen Yip Porter 020 7679 1299 (Internal 41299) k.yip-porter@ucl.ac.uk Safety Advisors Rhona Brown

Guillas, Serge

30

Anticipation in the Rodent Head Direction System Can Be Explained by an Interaction of Head Movements and Vestibular Firing Properties  

E-Print Network [OSTI]

Anticipation in the Rodent Head Direction System Can Be Explained by an Interaction of Head Rossum MC. Anticipation in the rodent head direction system can be explained by an interaction of head, 2007; doi:10.1152/jn.00233.2007. The rodent head-direction (HD) system, which codes for the animal

van Rossum, Mark

31

Bear Head LNG Corporation and Bear Head LNG (USA), LLC FE Docket No. 15-14-NG  

Broader source: Energy.gov [DOE]

On January 23, 2015, Bear Head LNG Corporation and Bear Head LNG (USA), LLC (together, Bear Head LNG), filed an application for long-term, multi-contract authorization to engage in imports from,...

32

INTERNAL POSTING - Head of Technology Transfer, Patents & Publications...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

INTERNAL POSTING - Head of Technology Transfer, Patents & Publications Department: Best Practices Supervisor(s): John Delooper Staff: AM 7 Requisition Number: 1400936 The Head of...

33

Los Alamos National Laboratory names new head of weapons programs  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Laboratory names new head of weapons programs Los Alamos National Laboratory names new head of weapons programs Bret Knapp has been acting in that position since June 2011....

34

Nanotechnology in Head and Neck Cancer: The Race Is On  

E-Print Network [OSTI]

10.1007/s11912-010-0087-2 Nanotechnology in Head and Neckthe applications of nanotechnology in head and neck cancer,plasmonic gold nanotechnology. Keywords Nanotechnology .

El-Sayed, Ivan H.

2010-01-01T23:59:59.000Z

35

DOE Head Contracting Authority (HCA) and Procurement Director...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

DOE Head Contracting Authority (HCA) and Procurement Director (PD) Directory DOE Head Contracting Authority (HCA) and Procurement Director (PD) Directory HCA and PD List Sept 23...

36

Mars mission laser tool heads to JPL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mars mission laser tool Mars mission laser tool heads to JPL Curiosity will carry the newly delivered laser instrument to reveal which elements are present in Mars' rocks and...

37

TMI-2 reactor vessel head removal  

SciTech Connect (OSTI)

This report describes the safe removal and storage of the Three Mile Island Unit 2 reactor vessel head. The head was removed in July 1984 to permit the removal of the plenum and the reactor core, which were damaged during the 1979 accident. From July 1982, plans and preparations were made using a standard head removal procedure modified by the necessary precautions and changes to account for conditions caused by the accident. After data acquisition, equipment and structure modifications, and training the head was safely removed and stored and the internals indexing fixture and a work platform were installed on top of the vessel. Dose rates during and after the operation were lower than expected; lessons were learned from the operation which will be applied to the continuing fuel removal operations activities.

Bengel, P.R.; Smith, M.D.; Estabrook, G.A.

1984-12-01T23:59:59.000Z

38

TMI-2 reactor vessel head removal  

SciTech Connect (OSTI)

This report describes the safe removal and storage of the Three Mile Island Unit 2 (TMI-2) reactor vessel head. The head was removed in July 1984 to permit the removal of the plenum and the reactor core, which were damaged during the 1979 accident. From July 1982, plans and preparations were made using a standard head removal procedure modified by the necessary precautions and changes to account for conditions caused by the accident. After data acquisition, equipment and structure modifications, and training, the head was safely removed and stored; and the internals indexing fixture and a work platform were installed on top of the vessel. Dose rates during and after the operation were lower than expected; lessons were learned from the operation which will be applied to the continuing fuel removal operations activities.

Bengel, P.R.; Smith, M.D.; Estabrook, G.A.

1985-09-01T23:59:59.000Z

39

Heater head for a Stirling engine  

SciTech Connect (OSTI)

A heater head is described for a compound Stirling engine modules, each including a displacer cylinder coaxially aligned with the displacer cylinder of the other of the engine modules, a displacer piston mounted for reciprocation in the displacer cylinder.

Darooka, D.K.

1988-09-06T23:59:59.000Z

40

Does Head Start help hispanic children?  

Science Journals Connector (OSTI)

Poor educational attainment is a persistent problem among US hispanic children, relative to non-hispanics. Many of these children are immigrants and/or come from households that use a minority language in the home. This paper examines the effects of participation in a government sponsored preschool program called Head Start on these children. We find that large and significant benefits accrue to Head Start children when we compare them to siblings who did not participate in the program. On average, Head Start closes at least 1/4 of the gap in test scores between hispanic children and non-hispanic white children, and 2/3 of the gap in the probability of grade repetition. However, we find that the benefits of Head Start are not evenly distributed across sub-groups.

Janet Currie; Duncan Thomas

1999-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

SPATIAL TRANSFORMATIONS 1 Running head: Spatial transformations  

E-Print Network [OSTI]

SPATIAL TRANSFORMATIONS 1 Running head: Spatial transformations Multiple Systems for Spatial Imagery: Transformations of Objects and Bodies Jeffrey M. Zacks* and Barbara Tversky * Washington COGNITION & COMPUTATION #12;SPATIAL TRANSFORMATIONS 2 Abstract Problem-solving often requires imagining

Zacks, Jeffrey M.

42

Electro-optic voltage sensor head  

DOE Patents [OSTI]

The invention is an electro-optic voltage sensor head designed for integration with existing types of high voltage transmission and distribution apparatus. The sensor head contains a transducer, which comprises a transducing material in which the Pockels electro-optic effect is observed. In the practice of the invention at least one beam of electromagnetic radiation is routed into the transducing material of the transducer in the sensor head. The beam undergoes an electro-optic effect in the sensor head when the transducing material is subjected to an E-field. The electro-optic effect is observed as a differential phase a shift, also called differential phase modulation, of the beam components in orthogonal planes of the electromagnetic radiation. In the preferred embodiment the beam is routed through the transducer along an initial axis and then reflected by a retro-reflector back substantially parallel to the initial axis, making a double pass through the transducer for increased measurement sensitivity. The preferred embodiment of the sensor head also includes a polarization state rotator and at least one beam splitter for orienting the beam along major and minor axes and for splitting the beam components into two signals which are independent converse amplitude-modulated signals carrying E-field magnitude and hence voltage information from the sensor head by way of optic fibers.

Crawford, Thomas M. (Idaho Falls, ID); Davidson, James R. (Idaho Falls, ID); Woods, Gregory K. (Cornelius, OR)

1999-01-01T23:59:59.000Z

43

Training and Certification of Lock Operators IMTS Heads-up Paper Heads-up Paper  

E-Print Network [OSTI]

Training and Certification of Lock Operators IMTS Heads-up Paper 1 Heads-up Paper Training called "Training and Certification of Lock and Dam Operators." Interested individuals can send ideas of the Training and Certification program. Examples of what will be in those draft documents are as follows

US Army Corps of Engineers

44

Dual, rotating stripper rubber drilling head  

SciTech Connect (OSTI)

In a drilling head for a well bore through which a tool string of varying outside diameter is run, the drilling head sealing against fluid flow past the tool string to divert such fluid through a side outlet port, said drilling head including a housing having an axial passageway through which the tool string is run and a bearing assembly to facilitate rotation of the tool string within the axial passageway, the improved drilling head comprising: first and second stripper rubbers rotatably mounted within the drilling head housing in seating contact with the tool string, said stripper rubbers having substantially identical inner diameters through which the tool string extends, said first stripper rubber formed of an abrasive resistant material to divert fluid flow from the axial passageway of the housing to the side outlet port and said second stripper rubber formed on a sealingly resilient material which maintains sealing contact with the tool string extending there through preventing fluid flow past said tool string; said first stripper rubber being corrected to clamping means associated with the bearing assembly through a first drive ring such that said first stripper rubber rotates with the tool string; and said second stripper rubber is rotatably connected to said clamping means associated with the bearing assembly through a second drive ring, said first and second drive rings coaxially mounted within the housing whereby said first stripper rubber is positioned axially below said second stripper rubber in sealing contact with the tool string.

Bailey, T.F.; Campbell, J.E.

1993-05-25T23:59:59.000Z

45

Rotating head for rotary drilling rigs  

SciTech Connect (OSTI)

A rotating head is claimed for a rotary drilling rig which is to be secured to the top of a well pipe having an inner rotating portion with an opening therethrough which permits passage of drill pipe, pipe joints, and Kelly tools; the rotating portion has an annular drive rubber formed integrally with the top portion thereof. A rotating head drive bushing having an opening with a cross-sectional shape generally conforming to the cross-section of the Kelly tool to permit only sliding motion therebetween is provided with helical external ridges which produce a disengagable gripping action with the opening in the drive rubber at the top of the rotating portion of the rotating head. The rotating portion has a conventional stripper rubber at the bottom thereof and is mounted with a double roller bearing to provide low friction motion with respect to the fixed portion of the head. The double roller bearing is lubricated with a viscous lubricating material and paddles are provided between the sets of rollers of the double roller bearing for distributing the viscous lubricating material and in particular propel it onto the upper set of bearings; the upper body portion of the rotating head is readily detachable from the lower sleeve portion which is normally welded to the well conductor pipe.

Adams, J.R.

1983-09-27T23:59:59.000Z

46

The Head-Neck Sensory Motor System  

E-Print Network [OSTI]

The Head-Neck Sensory Motor System Edited by Alain Berthoz Laboratoire de Physiologie, sideslip, and thrust) determine its loca- tion in space, and rotations (yaw, pitch, and roll) change its, no functional significance can be attributed to this multiple sampling. Oculomotor System of Calliphora

47

Department Heads Meeting D. MacFarlane  

E-Print Network [OSTI]

Department Heads Meeting D. MacFarlane March 21, 2013 #12;Snowmass working groups Snowmass web-7 at SLAC Energy Frontier All Hands: » April 3-6 at Brookhaven (web site) » June 30-July 3 at U. Washington a world leading cosmic frontier program » Cosmology, cosmic ray, dark matter & dark energy emphasis

Wechsler, Risa H.

48

Employee Handbook & Policy Manual Section Heading  

E-Print Network [OSTI]

Employee Handbook & Policy Manual Section Heading: 2.00 ­ Administrative & Personnel Policies in this document: · Person With Disabilities: a person having a physical or mental impairment which substantially. A "common wheelchair" does not exceed 30 inches in width and 48 inches in length measured two inches from

49

Judith Sheine Professor and Department Head  

E-Print Network [OSTI]

of Environmental Design, Department of Architecture Chair, 2002- present Professor, 2002 - present; AssociateJudith Sheine Professor and Department Head Department of Architecture School of Architecture) 346-3626 e-mail: jesheine@uoregon.edu Education 1979 Princeton University, School of Architecture

50

Analog VLSI Architecture for Computing Heading Direction  

E-Print Network [OSTI]

arrays of elementary velocity sensors to estimate the direction of heading for pure translational motion implementa- tion and the functionality of the elementary motion sensors used to extract the optical ow eld systems place severe constraints on their size, power consumption, shock resistance and manufacturing cost

51

3D head anthropometric analysis Reyes Enciso*ab  

E-Print Network [OSTI]

a current three-dimensional image-based face modeling technique using a plaster head model. We will also. In this paper we acquired and validated 3-dimensional images of a plaster head using structured-light image

Shahabi, Cyrus

52

Type B Accident Investigation Board Report on the Head Injury...  

Broader source: Energy.gov (indexed) [DOE]

on the Head Injury to a Miner at the Waste Isolation Pilot Plant, Carlsbad, New Mexico - August 25, 2004 Type B Accident Investigation Board Report on the Head Injury to a Miner at...

53

Anterior endoderm and head induction in early vertebrate embryos  

Science Journals Connector (OSTI)

Early work on the formation of the vertebrate body axis indicated the existence of separate head- and trunk-inducing regions in Spemann's organizer of the amphibian gastrula. In mammals some head-organizing a...

Flvio S. J. de Souza; Christof Niehrs

2000-05-01T23:59:59.000Z

54

A 3-D display head-set for personalized computing  

E-Print Network [OSTI]

This thesis covers the design and implementation of a binocular display head-set akin to Dr . Ivan E. Sutherland's head-mounted display, but using several new technologies and new techniques in computer graphics: small ...

Callahan, Mark A

1983-01-01T23:59:59.000Z

55

1 INTRODUCTION High-head storage hydropower plants operate  

E-Print Network [OSTI]

1 INTRODUCTION High-head storage hydropower plants operate their turbines during periods of high Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland ABSTRACT: High-head storage hydropower plants

Floreano, Dario

56

Gas cushion control of OVJP print head position  

DOE Patents [OSTI]

An OVJP apparatus and method for applying organic vapor or other flowable material to a substrate using a printing head mechanism in which the print head spacing from the substrate is controllable using a cushion of air or other gas applied between the print head and substrate. The print head is mounted for translational movement towards and away from the substrate and is biased toward the substrate by springs or other means. A gas cushion feed assembly supplies a gas under pressure between the print head and substrate which opposes the biasing of the print head toward the substrate so as to form a space between the print head and substrate. By controlling the pressure of gas supplied, the print head separation from the substrate can be precisely controlled.

Forrest, Stephen R

2014-10-07T23:59:59.000Z

57

Magnetic Field based Heading Estimation for Pedestrian Navigation Environments  

E-Print Network [OSTI]

Magnetic Field based Heading Estimation for Pedestrian Navigation Environments Muhammad Haris Afzal held devices, these other sources are accelerometers for roll and pitch estimates and magnetic field sensors for the heading. In order to utilize the magnetic field sensors for heading estimation

Calgary, University of

58

Automatic Tissue Classification for the Human Head from Multispectral MRI  

E-Print Network [OSTI]

1 Automatic Tissue Classification for the Human Head from Multispectral MRI Tolga Tasdizen, David for classifying multispectral MR scans of the human head into nine tissue classes. User initialization is adopted. #12;Chapter 1 Introduction Classification of head magnetic resonance imaging (MRI) data

Utah, University of

59

Oculomotor Responses to Active Head Movements in Darkness  

E-Print Network [OSTI]

information on head rotation from the vestibular system to the saccade-generating mechanism in the brain stem482 Oculomotor Responses to Active Head Movements in Darkness Formulation and Testing Sistemistica, Università di Pavia, Pavia, Italy Passive head rotation in darkness produces vestibular nystagmus

Ramat, Stefano

60

MEMORANDUM FOR HEADS OF DEPARTMENTAL ELEMENTS FROM:  

Broader source: Energy.gov (indexed) [DOE]

HEADS OF DEPARTMENTAL ELEMENTS HEADS OF DEPARTMENTAL ELEMENTS FROM: SUBJECT: Project Full Funding Policy in the Annual ~ u d ~ e t Request On July 18,2008, the Secretary approved the Department's Contract and Project Management Root Cause Analysis (RCA) Corrective Action Plan (CAP). This is the Department's plan to improve contract and project management and ultimately be removed from GAO's High Risk List - a list that the Department has been on since 1990. One of the key issues identified in the CAP is the Department's failure to request and obtain full funding for non-information technology capital asset projects, where appropriate. This new policy is established to reduce the inherent inefficiencies and risks ingoduced by prolonging the duration of small projects, as well as to add budget stability

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Head erosion with emittance growth in PWFA  

SciTech Connect (OSTI)

Head erosion is one of the limiting factors in plasma wakefield acceleration (PWFA). We present a study of head erosion with emittance growth in field-ionized plasma from the PWFA experiments performed at the FACET user facility at SLAC. At FACET, a 20.3 GeV bunch with 1.8 Multiplication-Sign 10{sup 10} electrons is optimized in beam transverse size and combined with a high density lithium plasma for beam-driven plasma wakefield acceleration experiments. A target foil is inserted upstream of the plasma source to increase the bunch emittance through multiple scattering. Its effect on beamplasma interaction is observed with an energy spectrometer after a vertical bend magnet. Results from the first experiments show that increasing the emittance has suppressed vapor field-ionization and plasma wakefields excitation. Plans for the future are presented.

Li, S. Z.; Adli, E.; England, R. J.; Frederico, J.; Gessner, S. J.; Hogan, M. J.; Litos, M. D.; Walz, D. R.; Muggli, P.; An, W.; Clayton, C. E.; Joshi, C.; Lu, W.; Marsh, K. A.; Mori, W.; Vafaei, N. [SLAC National Accelerator Laboratory, Menlo Park, CA 94025 (United States) and SLAC National Accelerator Laboratory, Menlo Park, CA 94025 (United States) and University of Oslo, Oslo, N-0316 (Norway) and SLAC National Accelerator Laboratory, Menlo Park, CA 94025 (United States); Max Planck Institute for Physics, Munich (Germany); University of California, Los Angeles, CA 90095 (United States)

2012-12-21T23:59:59.000Z

62

Surface treatment of magnetic recording heads  

DOE Patents [OSTI]

Surface modification of magnetic recording heads using plasma immersion ion implantation and deposition is disclosed. This method may be carried out using a vacuum arc deposition system with a metallic or carbon cathode. By operating a plasma gun in a long-pulse mode and biasing the substrate holder with short pulses of a high negative voltage, direct ion implantation, recoil implantation, and surface deposition are combined to modify the near-surface regions of the head or substrate in processing times which may be less than 5 min. The modified regions are atomically mixed into the substrate. This surface modification improves the surface smoothness and hardness and enhances the tribological characteristics under conditions of contact-start-stop and continuous sliding. These results are obtained while maintaining original tolerances.

Komvopoulos, Kyriakos (Orinda, CA); Brown, Ian G. (Berkeley, CA); Wei, Bo (Albany, CA); Anders, Simone (Albany, CA); Anders, Andre (Albany, CA); Bhatia, C. Singh (Morgan Hill, CA)

1998-01-01T23:59:59.000Z

63

Surface treatment of magnetic recording heads  

DOE Patents [OSTI]

Surface modification of magnetic recording heads using plasma immersion ion implantation and deposition is disclosed. This method may be carried out using a vacuum arc deposition system with a metallic or carbon cathode. By operating a plasma gun in a long-pulse mode and biasing the substrate holder with short pulses of a high negative voltage, direct ion implantation, recoil implantation, and surface deposition are combined to modify the near-surface regions of the head or substrate in processing times which may be less than 5 min. The modified regions are atomically mixed into the substrate. This surface modification improves the surface smoothness and hardness and enhances the tribological characteristics under conditions of contact-start-stop and continuous sliding. These results are obtained while maintaining original tolerances.

Komvopoulos, Kyriakos (Orinda, CA); Brown, Ian G. (Berkeley, CA); Wei, Bo (Albany, CA); Anders, Simone (Albany, CA); Anders, Andre (Albany, CA); Bhatia, Singh C. (Morgan Hill, CA)

1995-01-01T23:59:59.000Z

64

Surface treatment of magnetic recording heads  

DOE Patents [OSTI]

Surface modification of magnetic recording heads using plasma immersion ion implantation and deposition is disclosed. This method may be carried out using a vacuum arc deposition system with a metallic or carbon cathode. By operating a plasma gun in a long-pulse mode and biasing the substrate holder with short pulses of a high negative voltage, direct ion implantation, recoil implantation, and surface deposition are combined to modify the near-surface regions of the head or substrate in processing times which may be less than 5 min. The modified regions are atomically mixed into the substrate. This surface modification improves the surface smoothness and hardness and enhances the tribological characteristics under conditions of contact-start-stop and continuous sliding. These results are obtained while maintaining original tolerances. 22 figs.

Komvopoulos, K.; Brown, I.G.; Wei, B.; Anders, S.; Anders, A.; Bhatia, C.S.

1998-11-17T23:59:59.000Z

65

Surface treatment of magnetic recording heads  

DOE Patents [OSTI]

Surface modification of magnetic recording heads using plasma immersion ion implantation and deposition is disclosed. This method may be carried out using a vacuum arc deposition system with a metallic or carbon cathode. By operating a plasma gun in a long-pulse mode and biasing the substrate holder with short pulses of a high negative voltage, direct ion implantation, recoil implantation, and surface deposition are combined to modify the near-surface regions of the head or substrate in processing times which may be less than 5 min. The modified regions are atomically mixed into the substrate. This surface modification improves the surface smoothness and hardness and enhances the tribological characteristics under conditions of contact-start-stop and continuous sliding. These results are obtained while maintaining original tolerances. 15 figs.

Komvopoulos, K.; Brown, I.G.; Wei, B.; Anders, S.; Anders, A.; Bhatia, S.C.

1995-12-19T23:59:59.000Z

66

Definition: Head-End System | Open Energy Information  

Open Energy Info (EERE)

Head-End System Head-End System Jump to: navigation, search Dictionary.png Head-End System A head-end system is hardware and software that receives the stream of meter data brought back to the utility through the AMI. Head-end systems may perform a limited amount of data validation before either making the data available for other systems to request or pushing the data out to other systems.[1] Related Terms advanced metering infrastructure, system References ↑ https://www.smartgrid.gov/category/technology/head_end_system [[Ca LikeLike UnlikeLike You and one other like this.One person likes this. Sign Up to see what your friends like. tegory: Smart Grid Definitionssmart grid,smart grid, |Template:BASEPAGENAME]]smart grid,smart grid, Retrieved from "http://en.openei.org/w/index.php?title=Definition:Head-End_System&oldid=502621"

67

Integrated head package for top mounted nuclear instrumentation  

DOE Patents [OSTI]

A nuclear reactor such as a pressurized water reactor has an integrated head package providing structural support and increasing shielding leading toward the vessel head. A reactor vessel head engages the reactor vessel, and a control rod guide mechanism over the vessel head raises and lowers control rods in certain of the thimble tubes, traversing penetrations in the reactor vessel head, and being coupled to the control rods. An instrumentation tube structure includes instrumentation tubes with sensors movable into certain thimble tubes disposed in the fuel assemblies. Couplings for the sensors also traverse penetrations in the reactor vessel head. A shroud is attached over the reactor vessel head and encloses the control rod guide mechanism and at least a portion of the instrumentation tubes when retracted. The shroud forms a structural element of sufficient strength to support the vessel head, the control rod guide mechanism and the instrumentation tube structure, and includes radiation shielding material for limiting passage of radiation from retracted instrumentation tubes. The shroud is thicker at the bottom adjacent the vessel head, where the more irradiated lower ends of retracted sensors reside. The vessel head, shroud and contents thus can be removed from the reactor as a unit and rested safely and securely on a support.

Malandra, Louis J. (McKeesport, PA); Hornak, Leonard P. (Forest Hills, PA); Meuschke, Robert E. (Monroeville, PA)

1993-01-01T23:59:59.000Z

68

Heathrow campaigners heading for a historic victory?  

Science Journals Connector (OSTI)

The article assesses the reasons why the government may be heading for a historic defeat over its plans to expand Heathrow. It shows how the people and organisations campaigning to stop the expansion learnt vital lessons from past defeats. It highlights three key tactics the campaigners have used: building a wide-ranging coalition encompassing such diverse groups as local authorities and direct action activists, running a high-profile, pro-active, agenda-setting campaign and a willingness to challenge the government's economic arguments. The campaign is set against a background of peak oil, a deep economic recession and the threat of climate change.

John Stewart

2009-01-01T23:59:59.000Z

69

Onderwerpscodes Chemie -Farmacie / Subject headings Chemistry -Pharmacy, 2009, April1 Rubrieken Chemie -Farmacie: Subject headings Chemistry -  

E-Print Network [OSTI]

chemie 07 Inorganic chemistry 11.14 - 08 Organische chemie 08 Organic chemistry 12.11 - 10 Didactics and priciples of chemistry 14.03 - 16 Vervolgwerken - Annuals 16 Book series and annuals 14Onderwerpscodes Chemie - Farmacie / Subject headings Chemistry - Pharmacy, 2009, April1 Rubrieken

Galis, Frietson

70

Memorandum to Heads of Federal Departments and Agencies Regarding Pollution  

Broader source: Energy.gov (indexed) [DOE]

Memorandum to Heads of Federal Departments and Agencies Regarding Memorandum to Heads of Federal Departments and Agencies Regarding Pollution Prevention and the National Environmental Policy Act Memorandum to Heads of Federal Departments and Agencies Regarding Pollution Prevention and the National Environmental Policy Act This memorandum provides guidance to the federal agencies on incorporating pollution prevention principles, techniques, and mechanisms into their planning and decisionmaking processes and evaluating and reporting those efforts in documents prepared pursuant to the National Environmental Policy Act. Memorandum to Heads of Federal Departments and Agencies Regarding Pollution Prevention and the National Environmental Policy Act More Documents & Publications Integrating Pollution Prevention with NEPA Planning Activities

71

Meyer-Harms, Bettina, Xabier Irigoien, Robert Head, and Roger ...  

Science Journals Connector (OSTI)

M. Head and Harris (1994) first used this method to describe selective feeding by different size-fractionated zooplankton off the coast of Morocco. A modification...

1999-03-11T23:59:59.000Z

72

Bret Knapp to head combined Weapons Engineering, Weapons Physics...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Weapons Engineering, Weapons Physics Directorates Bret Knapp to head combined Weapons Engineering, Weapons Physics Directorates at Los Alamos National Laboratory New leadership...

73

Council on Environmental Quality - Memorandum for Heads of Federal...  

Open Energy Info (EERE)

search OpenEI Reference LibraryAdd to library Memorandum: Council on Environmental Quality - Memorandum for Heads of Federal Departments and Agencies Abstract This page links...

74

TO: Procurement Directors Head of Contracting Activities FROM...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

8 DATE: December 5, 2014 TO: Procurement Directors Head of Contracting Activities FROM: Director Contract and Financial Assistance Policy Division Office of Policy Office of...

75

TO: Procurement Directors Head of Contracting Activities FROM...  

Broader source: Energy.gov (indexed) [DOE]

9 DATE: August 21, 2014 TO: Procurement Directors Head of Contracting Activities FROM: Director Contract and Financial Assistance Policy Division Office of Policy Office of...

76

Laboratory Demonstration of a New American Low-Head Hydropower...  

Broader source: Energy.gov (indexed) [DOE]

Laboratory Demonstration of a New American Low-Head Hydropower Turbine 68bhydrogreensmallhydroch11.ppt More Documents & Publications Real World Demonstration of a New...

77

Dr. Jim Wright Acting Head, Division of Radiation Oncology  

E-Print Network [OSTI]

Dr. Jim Wright Acting Head, Division of Radiation Oncology Associate Professor Department outstanding contributions to the care and treatment of cancer patients through research. Dr. Jim Wright has

Haykin, Simon

78

Mars mission laser tool heads to JPL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mars mission laser tool Mars mission laser tool Mars mission laser tool heads to JPL Curiosity will carry the newly delivered laser instrument to reveal which elements are present in Mars' rocks and soils. September 21, 2010 A bright ball of plasma is produced by ChemCam's invisible laser beam striking a rock within the Mars sample chamber. A bright ball of plasma is produced by ChemCam's invisible laser beam striking a rock within the Mars sample chamber. Contact Nancy Ambrosiano Communications Office (505) 667-0471 Email "ChemCam will act as a geochemical observatory, providing composition data to understand if Mars was, is, or will be a habitable world." Star Wars photon gun will give Mars rover hands-free rock ID LOS ALAMOS, New Mexico, September 21, 2010-The ChemCam instrument has

79

Light water reactor lower head failure analysis  

SciTech Connect (OSTI)

This document presents the results from a US Nuclear Regulatory Commission-sponsored research program to investigate the mode and timing of vessel lower head failure. Major objectives of the analysis were to identify plausible failure mechanisms and to develop a method for determining which failure mode would occur first in different light water reactor designs and accident conditions. Failure mechanisms, such as tube ejection, tube rupture, global vessel failure, and localized vessel creep rupture, were studied. Newly developed models and existing models were applied to predict which failure mechanism would occur first in various severe accident scenarios. So that a broader range of conditions could be considered simultaneously, calculations relied heavily on models with closed-form or simplified numerical solution techniques. Finite element techniques-were employed for analytical model verification and examining more detailed phenomena. High-temperature creep and tensile data were obtained for predicting vessel and penetration structural response.

Rempe, J.L.; Chavez, S.A.; Thinnes, G.L. [EG and G Idaho, Inc., Idaho Falls, ID (United States)] [and others

1993-10-01T23:59:59.000Z

80

Topic Models to Interpret MeSH MEDLINE's Medical Subject Headings  

E-Print Network [OSTI]

://ii.nlm.nih.gov/mti.shtml #12;MeSH heading Major MeSH heading Major qualifier MeSH-qualifier combination Humans Brain metabolism Brain (metabolism) Table 1. Most frequent MeSH headings, major MeSH headings, major qualifiers and MeTopic Models to Interpret MeSH � MEDLINE's Medical Subject Headings David Newman12 , Sarvnaz Karimi

Newman, David

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

MFRSR Head Refurbishment, Data Logger Upgrade and Calibration Improvements  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

MFRSR Head Refurbishment, Data Logger Upgrade MFRSR Head Refurbishment, Data Logger Upgrade and Calibration Improvements Gary Hodges, CIRES/NOAA and John Schmelzer, PNL gary.hodges@noaa.gov, john.schmelzer@pnl.gov 17th Annual ARM Science Team Meeting 26-30 March 2006 Monterey, CA Head Refurbishment The Process Includes: * New filter detectors * Relocate internal thermistors * New connectors * Gain resistors moved to head * Improved insulation The Finished Heads: * Are lamp calibrated * Have filter profiles measured * Cosine characterized * Are out-of-band tested What Does This Mean For Data Users? * Fewer data gaps * Fewer DQRs * Confidence in the data * Well calibrated data Calibration Improvements 5 6 7 8 0 2 4 6 Airmass ln Direct Data will now be calibrated by the Langley method Extrapolate to TOA to get V 0 Benefits of Langley vs. Lamp calibrations:

82

Tracking Santa: An Interview with the Head Researcher | Department of  

Broader source: Energy.gov (indexed) [DOE]

Tracking Santa: An Interview with the Head Researcher Tracking Santa: An Interview with the Head Researcher Tracking Santa: An Interview with the Head Researcher December 23, 2010 - 11:12am Addthis Tracking Santa: An Interview with the Head Researcher Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs What does this mean for me? You'll be able to start monitoring St. Nick's journey starting at 6 AM ET on Christmas Eve. Every year since 1998, the Department of Energy's Los Alamos lab has been using state of the art technology to track Santa Claus as he circles the globe the night before Christmas. You'll be able to start monitoring St. Nick's journey here starting at 6 AM ET on Christmas Eve. This week, I got a chance to talk to Santa Tracker Head Researcher (and Cibola Flight Experiment Project Leader) Diane Roussel-Dupre to get a

83

Design of a dual stage actuator tape head with high-bandwidth track following capability  

E-Print Network [OSTI]

to the voice coil motor (VCM). A leaf spring on top of thespring Slot Air bearing surface Read/write elements (in slot) Bracket (b) Servo head Read head Write head Voice coil

Raeymaekers, Bart; Graham, Matthew R.; Callafon, Raymond A.; Talke, Frank E.

2009-01-01T23:59:59.000Z

84

High energy activation data library (HEAD-2009)  

SciTech Connect (OSTI)

A proton activation data library for 682 nuclides from 1 H to 210Po in the energy range from 150 MeV up to 1 GeV was developed. To calculate proton activation data, the MCNPX 2.6.0 and CASCADE/INPE codes were chosen. Different intranuclear cascade, preequilibrium, and equilibrium nuclear reaction models and their combinations were used. The optimum calculation models have been chosen on the basis of statistical correlations for calculated and experimental proton data taken from the EXFOR library of experimental nuclear data. All the data are written in ENDF-6 format. The library is called HEPAD-2008 (High-Energy Proton Activation Data). A revision of IEAF-2005 neutron activation data library has been performed. A set of nuclides for which the cross-section data can be (and were) updated using more modern and improved models is specified, and the corresponding calculations have been made in the present work. The new version of the library is called IEAF-2009. The HEPAD-2008 and IEAF-2009 are merged to the final HEAD-2009 library.

Mashnik, Stepan G [Los Alamos National Laboratory; Korovin, Yury A [NON LANL; Natalenko, Anatoly A [NON LANL; Konobeyev, Alexander Yu [NON LANL; Stankovskiy, A Yu [NON LANL

2010-01-01T23:59:59.000Z

85

Memorandum for Heads of Federal Departments and Agencies: Emergencies and  

Broader source: Energy.gov (indexed) [DOE]

Heads of Federal Departments and Agencies: Heads of Federal Departments and Agencies: Emergencies and NEPA Memorandum for Heads of Federal Departments and Agencies: Emergencies and NEPA With this Memorandum, the Council on Environmental Quality reiterates its previous guidance on the National Environmental Policy Act (NEPA) environmental review of proposed emergency response actions.This memorandum clarifies that the previous guidance remains applicable to current situations and provides guidance on required agency environmental review. Emergencies and NEPA More Documents & Publications Memorandum for Federal NEPA Contacts: Emergency Actions and NEPA Aligning National Environmental Policy Act Process with Environmental Management Systems Final Guidance on Improving the Process for Preparing Efficient and Timely

86

Head of EM Visits Waste Isolation Pilot Plant for First Underground...  

Office of Environmental Management (EM)

Head of EM Visits Waste Isolation Pilot Plant for First Underground Tour Since February Incidents Head of EM Visits Waste Isolation Pilot Plant for First Underground Tour Since...

87

Department of Energy Contractor Diana Lewis Heading to National Small  

Broader source: Energy.gov (indexed) [DOE]

Department of Energy Contractor Diana Lewis Heading to National Department of Energy Contractor Diana Lewis Heading to National Small Business Week Department of Energy Contractor Diana Lewis Heading to National Small Business Week June 10, 2013 - 8:50am Addthis Department of Energy Contractor Diana Lewis Heading to National Small Business Week John Hale III John Hale III Director, Office of Small and Disadvantaged Business Utilization National Small Business Week is around the corner, kicking off on June 17 across the country. The week honors hundreds of thousands of small business that contract with the federal government every year. Diana Lewis, a West Virginia native and founder of Action Facilities Management, Inc., is one of the small business owners being recognized by her state as the Small Business Person of the Year. During National Small

88

Understanding salt-marsh accretion, Scolt Head Island, Norfolk, England  

Science Journals Connector (OSTI)

Measurements of surface sediment accretion have been obtained for Hut Marsh, Scolt Head Island, Norfolk, England, using sand marker horizons. More than eighty 1-m2 marker sites were deployed in October 1983, and ...

David R. Stoddart; Denise J. Reed; Jonathan R. French

1989-12-01T23:59:59.000Z

89

Theoretical collapse pressures for two pressurized torispherical heads  

SciTech Connect (OSTI)

In order to determine the pressures at which real torispherical heads fail upon a single application of pressure, two heads were pressurized in recent Praxair tests, and displacements and strains were recorded at various locations. In this paper, theoretical results for the two test heads are presented in the form of curves of pressure versus crown deflections, using the available geometry and material parameters. From these curves, limit and collapse pressures are calculated, using procedures permitted by the ASME B and PV Code Section 8/Div.2. These pressures are shown to vary widely, depending on the method and model used to calculate them. The effect of no stress relief on the behavior of the Praxair test heads is also evaluated and found to be of no significance for neither the objectives of the tests nor the objectives of this paper. The results of this paper are submitted as an enhancement to the experimental results recorded during the Praxair tests.

Kalnins, A.; Updike, D.P. [Lehigh Univ., Bethlehem, PA (United States); Rana, M.D. [Praxair, Inc., Tonawanda, NY (United States). Research and Development Dept.

1995-12-01T23:59:59.000Z

90

Energy Savings from Floating Head Pressure in Ammonia Refrigeration Systems  

E-Print Network [OSTI]

This paper presents case studies of two moderately sized ammonia refrigeration systems retrofitted for floating head pressure control. It also presents a parametric analysis to assist in selecting appropriate pressures in an ammonia refrigeration...

Barrer, P. J.; Jones, S. M.

91

Modeling Adhesive Forces for Ultra Low Flying Head Disk Interfaces  

Science Journals Connector (OSTI)

This paper addresses a major issue in microtribology related to the head/disk interface (HDI) in magnetic storage. This is the issue of strong intermolecular (adhesive) forces that may be present at the interf...

Andreas A. Polycarpou

2003-01-01T23:59:59.000Z

92

Designation of the Head of Contracting Activity/Redelegation...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2B, Designation of the Head of Contracting ActivityRedelegation Order No. 00-003.01-02B to the Deputy Director, Office of Acquisition Management by Joseph Waddell Functional...

93

Multi-atlas segmentation in head and neck CT scans  

E-Print Network [OSTI]

We investigate automating the task of segmenting structures in head and neck CT scans, to minimize time spent on manual contouring of structures of interest. We focus on the brainstem and left and right parotids. To generate ...

Arbisser, Amelia M

2012-01-01T23:59:59.000Z

94

Reactivating personal memory 1 RUNNING HEAD: Reactivating personal memory  

E-Print Network [OSTI]

Reactivating personal memory 1 RUNNING HEAD: Reactivating personal memory Modifying memory: Selectively enhancing and updating personal memories for a museum; Reactivating personal memory 2 Abstract Memory can be modified when reactivated

Schacter, Daniel

95

Bicycle helmets are highly effective at preventing head injury during head impact: Head-form accelerations and injury criteria for helmeted and unhelmeted impacts  

Science Journals Connector (OSTI)

Abstract Cycling is a popular form of recreation and method of commuting with clear health benefits. However, cycling is not without risk. In Canada, cycling injuries are more common than in any other summer sport; and according to the US National Highway and Traffic Safety Administration, 52,000 cyclists were injured in the US in 2010. Head injuries account for approximately two-thirds of hospital admissions and three-quarters of fatal injuries among injured cyclists. In many jurisdictions and across all age levels, helmets have been adopted to mitigate risk of serious head injuries among cyclists and the majority of epidemiological literature suggests that helmets effectively reduce risk of injury. Critics have raised questions over the actual efficacy of helmets by pointing to weaknesses in existing helmet epidemiology including selection bias and lack of appropriate control for the type of impact sustained by the cyclist and the severity of the head impact. These criticisms demonstrate the difficulty in conducting epidemiology studies that will be regarded as definitive and the need for complementary biomechanical studies where confounding factors can be adequately controlled. In the bicycle helmet context, there is a paucity of biomechanical data comparing helmeted to unhelmeted head impacts and, to our knowledge, there is no data of this type available with contemporary helmets. In this research, our objective was to perform biomechanical testing of paired helmeted and unhelmeted head impacts using a validated anthropomorphic test headform and a range of drop heights between 0.5m and 3.0m, while measuring headform acceleration and Head Injury Criterion (HIC). In the 2m (6.3m/s) drops, the middle of our drop height range, the helmet reduced peak accelerations from 824g (unhelmeted) to 181g (helmeted) and HIC was reduced from 9667 (unhelmeted) to 1250 (helmeted). At realistic impact speeds of 5.4m/s (1.5m drop) and 6.3m/s (2.0m drop), bicycle helmets changed the probability of severe brain injury from extremely likely (99.9% risk at both 5.4 and 6.3m/s) to unlikely (9.3% and 30.6% risk at 1.5m and 2.0m drops respectively). These biomechanical results for acceleration and HIC, and the corresponding results for reduced risk of severe brain injury show that contemporary bicycle helmets are highly effective at reducing head injury metrics and the risk for severe brain injury in head impacts characteristic of bicycle crashes.

Peter A. Cripton; Daniel M. Dressler; Cameron A. Stuart; Christopher R. Dennison; Darrin Richards

2014-01-01T23:59:59.000Z

96

Katie Antypas Named New Head of NERSC User Services Department  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Katie Antypas Named Katie Antypas Named New Head of NERSC Services Department Katie Antypas Named New Head of NERSC Services Department September 3, 2013 katie2 Katie Antypas Katie Antypas, who has led NERSC's User Services Group since October 2010, has been named as the new Services Department Head, effective September 23. Antypas succeeds Francesca Verdier, who will serve as Allocations Manager until her planned retirement in June 2014. Antypas is also the project lead for the NERSC-8 system procurement, a project to deploy NERSC's next generation system in the 2015 timeframe. "Katie's leadership in ensuring that NERSC users are able to maximize their use of both our current and future systems has positioned her well to help lead NERSC users and staff into the next era of extreme scale

97

World's Largest Solar Energy Project Heads to Mojave | Department of  

Broader source: Energy.gov (indexed) [DOE]

World's Largest Solar Energy Project Heads to Mojave World's Largest Solar Energy Project Heads to Mojave World's Largest Solar Energy Project Heads to Mojave April 16, 2010 - 4:47pm Addthis A California company will harness the Mojave Desert sunshine to create the world's largest solar energy system by the end of 2013. The Ivanpah Solar Electric Generating System, located just a few miles from the California - Nevada border near Interstate 15, will generate approximately 400 MW of energy per year, almost doubling the amount of solar thermal energy produced in the United States. Ivanpah will focus sunlight from mirrors placed on poles, which don't require the land to be graded and can be placed around areas that are already in use or environmentally sensitive. The project of Oakland, Calif.-based BrightSource Energy, Inc. will likely generate enough power

98

NREL: Photovoltaics Research - Solar Decathlon Heads to California for 2013  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Decathlon Heads to California for 2013 Event Decathlon Heads to California for 2013 Event Photo showing the aerial view of several structures with solar panels on top. Aerial view of the U.S. Department of Energy Solar Decathlon 2011 in Washington, D.C. (Credit: Stefano Paltera/U.S. Department of Energy Solar Decathlon) January 11, 2013 For the first time, the U.S. Department of Energy Solar Decathlon will be held outside of Washington, D.C. This fall, 20 collegiate teams will head to the Orange Country Great Park in Irvine, California, to compete in this award-winning showcase of energy-efficient and solar-powered houses. The free event will take place in a specially constructed village Oct. 3-13, 2013. The competition houses will be open to visitors on eight days over two weekends. Public hours will be from 11 a.m. to 7 p.m. daily:

99

Sprinkler Head Replacement (4586), 4/24/2012  

Broader source: Energy.gov (indexed) [DOE]

Sprinkler Head Replacement Projects (4586) Sprinkler Head Replacement Projects (4586) Program or Field Office: Y-12 Site Office Location(s) (Citv/Countv/State): Oak Ridge, Anderson County, Tennessee Proposed Action Description: The proposed action is to replace approximately 1 ,300 sprinkler heads upgrade fire protection systems. Categorical Exclusion(s) Applied: 81.3- Routine maintenance Submit by E-mail For the complete DOE National Environmental Policy Act regulations regarding categorical exclusions, including the full text of each categorical exclusion, see Subpart D of 10 CFR Part 1021. Regulatory Requirements in 10 CFR 1021.410(b): (See full text in regulation) [{Jrhe proposal fits within a class of actions that is listed in Appendix A orB to 10 CFR Part 1021, Subpart D. To fit within the classes of actions listed in 10 CFR Part 1021, Subpart D, Appendix B, a proposal must be one that would not: (1) threaten

100

Srinivasan Named Head of NERSC's Computational Systems Group  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Srinivasan Named Head Srinivasan Named Head of NERSC's Computational Systems Group Srinivasan Named Head of NERSC's Computational Systems Group August 31, 2011 | Tags: NERSC Jay Srinivasan has been selected as the Computational Systems Group Lead in the NERSC Systems Department. In this role, he will supervise the day-to-day operation of all of NERSC's computer systems. Prior to taking on his new assignment, Srinivasan was the team lead for the PDSF cluster that supports Nuclear Physics and High Energy Physics. Srinivasan has more than 15 years of experience in high performance computing, both as a user and administrator. Since joining NERSC in 2001, he has worked on all the large systems from NERSC-3, the IBM/SP2 system called Seaborg, to Hopper, the Cray XE6 that is currently NERSC's

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

EM's Los Alamos TRU Waste Campaign Heads Toward Completion | Department  

Broader source: Energy.gov (indexed) [DOE]

EM's Los Alamos TRU Waste Campaign Heads Toward Completion EM's Los Alamos TRU Waste Campaign Heads Toward Completion EM's Los Alamos TRU Waste Campaign Heads Toward Completion November 20, 2013 - 12:00pm Addthis Advanced techniques allowed crews at Los Alamos National Laboratory to decontaminate large boxes of waste so it could be shipped as mixed low-level rather than transuranic waste. Advanced techniques allowed crews at Los Alamos National Laboratory to decontaminate large boxes of waste so it could be shipped as mixed low-level rather than transuranic waste. The EM program at Los Alamos National Laboratory exceeded its shipping goals in fiscal year 2013, shipping twice as much waste as it did in fiscal year 2012. The EM program at Los Alamos National Laboratory exceeded its shipping goals in fiscal year 2013, shipping twice as much waste as it did in fiscal

102

Nags Head, North Carolina: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Nags Head, North Carolina: Energy Resources Nags Head, North Carolina: Energy Resources (Redirected from Nags Head, NC) Jump to: navigation, search Equivalent URI DBpedia Coordinates 35.9573922°, -75.6240619° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.9573922,"lon":-75.6240619,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

103

Los Alamos names new head of stockpile manufacturing and support  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

New head of stockpile manufacturing and support New head of stockpile manufacturing and support Los Alamos names new head of stockpile manufacturing and support Carl Beard is the new associate director for stockpile manufacturing and support. Beard has held this position in an acting capacity since June 2007. January 22, 2008 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials.

104

Los Alamos National Laboratory names new head of weapons programs  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Laboratory names new head of weapons programs Laboratory names new head of weapons programs Los Alamos National Laboratory names new head of weapons programs Bret Knapp has been acting in that position since June 2011. December 1, 2011 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Contact Kevin Roark Communications Office (505) 665-9202

105

MHK Projects/Kendall Head Tidal Energy | Open Energy Information  

Open Energy Info (EERE)

Kendall Head Tidal Energy Kendall Head Tidal Energy < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

106

An improved dosimetric model of the head and brain  

E-Print Network [OSTI]

Br). Other radionuclides considered may deposit in bone withm the head region (cranium or the spinal skeleton) (is'I, 2P, ssP, tssRe, 'ssRe, 'ssSm, "7~Sb, ssSr, s Sr, "nY, ss~Tc, tsiCs, ss"Ra), or m the thyroid fss~ Tc, and all iodme radionuclides... tagged to them (i. e. , radiopharmaceuticals). Nevertheless, studies of the small-scale dosimetry of the bram, and more generally, the organs of the head (brain, eyes thyroid, skull, skin), have not kept pace with the current advances in nuclear...

Bouchet, Lionel Gerard

1995-01-01T23:59:59.000Z

107

SFU RECREATION & ATHLETICS EMPLOYMENT OPPORTUNITY SFU CAMPS HEAD INSTRUCTOR  

E-Print Network [OSTI]

SFU RECREATION & ATHLETICS EMPLOYMENT OPPORTUNITY SFU CAMPS HEAD INSTRUCTOR GLEE CAMPS POSITION) and supervise recreational activities daily. · Evaluate instructors and volunteers as discussed in staff the allocated budget. · Additional responsibilities as directed by the Summer Camps Programmer and Recreation

Kavanagh, Karen L.

108

Beam Head Erosion in Self-Ionized Plasma Wakefield Accelerators  

SciTech Connect (OSTI)

In the recent plasma wakefield accelerator experiments at SLAC, the energy of the particles in the tail of the 42 GeV electron beam were doubled in less than one meter [1]. Simulations suggest that the acceleration length was limited by a new phenomenon--beam head erosion in self-ionized plasmas. In vacuum, a particle beam expands transversely in a distance given by {beta}*. In the blowout regime of a plasma wakefield [2], the majority of the beam is focused by the ion channel, while the beam head slowly spreads since it takes a finite time for the ion channel to form. It is observed that in self-ionized plasmas, the head spreading is exacerbated compared to that in pre-ionized plasmas, causing the ionization front to move backward (erode). A simple theoretical model is used to estimate the upper limit of the erosion rate for a bi-gaussian beam by assuming free expansion of the beam head before the ionization front. Comparison with simulations suggests that half this maximum value can serve as an estimate for the erosion rate. Critical parameters to the erosion rate are discussed.

Berry, M.K.; Blumenfeld, I.; Decker, F.J.; Hogan, M.J.; Ischebeck, R.; Iverson, R.H.; Kirby, N.A.; Siemann, Robert H.; Walz, D.R.; /SLAC; Clayton, C.E.; Huang, C.; Joshi, C.; Lu, W.; Marsh, K.A.; Mori, W.B.; Zhou, M.; /UCLA; Katsouleas, T.C.; Muggli, P.; Oz, E.; /Southern California U.

2008-01-28T23:59:59.000Z

109

Recto Running Head 1 Available Potential Energy and Exergy in  

E-Print Network [OSTI]

Recto Running Head 1 Available Potential Energy and Exergy in Stratified Fluids R�emi Tailleux, thermodynamic efficiencies, buoyancy forcing. Abstract Lorenz's theory of available potential energy (APE) remains the main framework for studying the atmospheric and oceanic energy cycles. Because the APE

Tailleux, Remi

110

Brief Communications Optic Flow Stimuli Update Anterodorsal Thalamus Head  

E-Print Network [OSTI]

orientation in the yaw plane relative to environmental landmark cues. Head movements provoke optic field flow)istheonlyknownprojectionofheaddirectioninformationtoentorhinalgridcellsandhippocampalplacecells,yawplaneoptic flow signals likely influence representations in this spatial reference coordinate system to the body, independently of the ani- mal's ongoing behavior and of its spatial location. The HD cell system

Arleo, Angelo

111

Effects of Head Movement on Perceptions of Humanoid Robot Behavior  

E-Print Network [OSTI]

Effects of Head Movement on Perceptions of Humanoid Robot Behavior Emily Wang Constantine Lignos@cs.yale.edu ABSTRACT This paper examines human perceptions of humanoid robot behavior, specifically how perception to the lab to "play with Nico," an upper-torso humanoid robot. The follow-up survey asked subjects to rate

Plotkin, Joshua B.

112

Anna Head West Student Housing Construction starts Sept. 27  

E-Print Network [OSTI]

to offices in the Anna Head buildings, as well as additional lights, a UCPD "blue phone", and security on the south side of the street are relocated underground. The utilities work will focus on moving the power will remain open. * The sidewalk on Haste Street will be closed adjacent to the site. Pedestrians

Hellerstein, Joseph M.

113

Head-Tail Modes for Strong Space Charge  

SciTech Connect (OSTI)

Head-tail modes are described here for the space charge tune shift significantly exceeding the synchrotron tune. General equation for the modes is derived. Spatial shapes of the modes, their frequencies, and coherent growth rates are explored. The Landau damping rates are also found. Suppression of the transverse mode coupling instability by the space charge is explained.

Burov, Alexey

2008-12-01T23:59:59.000Z

114

Simultaneous multi-headed imager geometry calibration method  

DOE Patents [OSTI]

A method for calibrating multi-headed high sensitivity and high spatial resolution dynamic imaging systems, especially those useful in the acquisition of tomographic images of small animals. The method of the present invention comprises: simultaneously calibrating two or more detectors to the same coordinate system; and functionally correcting for unwanted detector movement due to gantry flexing.

Tran, Vi-Hoa (Newport News, VA); Meikle, Steven Richard (Penshurst, AU); Smith, Mark Frederick (Yorktown, VA)

2008-02-19T23:59:59.000Z

115

Computational Modeling of Brain Dynamics during Repetitive Head Motions  

E-Print Network [OSTI]

Computational Modeling of Brain Dynamics during Repetitive Head Motions Igor Szczyrba School motions in traumatic scenarios that are as- sociated with severe brain injuries. Our results are based on the linear Kelvin-Voigt brain injury model, which treats the brain matter as a viscoelastic solid, and on our

Burtscher, Martin

116

UNITED STATES: NOAA Head Vows to Protect Marine Re-  

E-Print Network [OSTI]

Flshmg Off U. West Coas Saury Flshing f U.. to Be R duced Sharply Resume Canned-Tuna Sales to U.S. 1971 for FISh Culture Flshery Aid Mlssion to VISit 'Thlrd World' ·'ev; ·'lchlro Head Stresses 'Systematiza- tion

117

Running Head: TESTOSTERONE AND POWER Testosterone and power  

E-Print Network [OSTI]

Running Head: TESTOSTERONE AND POWER Testosterone and power Steven J. Stanton and Oliver C. Schultheiss University of Michigan, Ann Arbor, MI, USA To appear in: K. Dowding (Ed.), Encyclopedia of power-647-9440, email: stantons@umich.edu #12;Testosterone and power 2 Across many studies in humans, two functional

Schultheiss, Oliver C.

118

Modeling Interactions of the Rat's Place and Head Direction Systems  

E-Print Network [OSTI]

Modeling Interactions of the Rat's Place and Head Direction Systems A. David Redish and David S in a set of experiments by Sharp et al. (1990). 1 The Sharp et al., 1990 experiment Rats spent multiple sessions finding food scattered randomly on the floor of a black cylin­ drical arena with a white cue card

Touretzky, David S.

119

IMAGINED TRANSFORMATIONS 1 Running head: IMAGINED TRANSFORMATION OF BODIES  

E-Print Network [OSTI]

IMAGINED TRANSFORMATIONS 1 Running head: IMAGINED TRANSFORMATION OF BODIES Imagined Transformations TRANSFORMATIONS 2 Abstract A number of spatial reasoning problems can be solved by performing an imagined transformation of one's egocentric perspective. A series of experiments were carried out to characterize

Zacks, Jeffrey M.

120

E-Print Network 3.0 - actin-bound myosin heads Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Summary: of actin-bound myosin heads in spin-labeled myofibrils in the presence of the ATP analogs AMPPNP (5... -Si have demonstrated that actin-bound myosin heads are...

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Study on head instability using Flying-QST tester for HDDs  

Science Journals Connector (OSTI)

We developed a tester consisting of minor-loop and major-loop quasi-static test (QST) units in order to better understand head instabilities under conditions where the head slider was flying on the disk. The mino...

Masaru Furukawa; Junguo Xu; Yukio Kato; Tatsuhiko Wada

2013-09-01T23:59:59.000Z

122

Application of Rarefied Gas Dynamics to the Head-Disk Interface in Hard Disk Drives  

E-Print Network [OSTI]

of a magnetic disk and a thermal flying height control (TFC)gration on the flying head slider at the head-disk interfaceThermal flying-height control sliders in hard disk drives

Liu, Nan

2010-01-01T23:59:59.000Z

123

Dr. Martin Wolf, Ph. D Head of Biomedical Optics Research Laboratory  

E-Print Network [OSTI]

and oxygenation of the brain and muscle. Since 2002 he heads the Biomedical Optics Research LaboratoryDr. Martin Wolf, Ph. D Head of Biomedical Optics Research Laboratory Clinic of Neonatology

Zanibbi, Richard

124

A representation of changing heading direction in human cortical areas pVIP and CSv  

E-Print Network [OSTI]

Running title: Changing heading direction in the human brain Keywords: egomotion; f1 A representation of changing heading direction in human cortical in the environment, we continually change direction. Much work has examined how the brain

Royal Holloway, University of London

125

Real World Demonstration of a New American Low-Head Hydropower...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Real World Demonstration of a New American Low-Head Hydropower Unit Real World Demonstration of a New American Low-Head Hydropower Unit Real World Demonstration of a New American...

126

Model 923-B Mouse Gas Anesthesia Head Holder Adaptor Adjustment Features  

E-Print Network [OSTI]

Model 923-B Mouse Gas Anesthesia Head Holder Adaptor Adjustment Features Dorsal/Ventral dial.352.3139 Toll Free: 1.877.352.3275 ^^ci&ion Q)e&i^n^^^r ^esea/H^/i Model 923-B Mouse Gas Anesthesia Head Holder 923B-1/07 #12;MODEL 923-B MOUSE GAS ANESTHESIA HEAD HOLDER The KOPF Mouse Gas Anesthesia Head Holder

Kleinfeld, David

127

Improvement of the effectiveness of spillway operation of high-head hydroelectric stations  

Science Journals Connector (OSTI)

1. The distance of deflection of a high-head aerated flow being discharged from spillways decreases in proportio...

P. R. Khlopenkov

1987-04-01T23:59:59.000Z

128

Volume Currents in Forward and Inverse MEG Simulations Using Realistic Head Models  

E-Print Network [OSTI]

Volume Currents in Forward and Inverse MEG Simulations Using Realistic Head Models Robert Van of magnetoencephalographic (MEG) forward or inverse sim­ ulations in realistic head models. We verify the accuracy, in an inhomogeneous, non­spherical realistic head model, the magnetic field normal to the MEG detector due to volume

Utah, University of

129

Modeling Attractor Deformation in the Rodent Head-Direction JEREMY P. GOODRIDGE1  

E-Print Network [OSTI]

Modeling Attractor Deformation in the Rodent Head-Direction System JEREMY P. GOODRIDGE1 AND DAVID S attractor deformation in the rodent head-direction system. J Neurophysiol 83: 3402­3410, 2000. We present a model of the head-direction circuit in the rat that improves on earlier models in several respects

Touretzky, David S.

130

NEURAL MODELS OF HEAD-DIRECTION CELLS PETER ZEIDMAN JOHN A. BULLINARIA  

E-Print Network [OSTI]

We have seen that navigation requires knowledge of heading, and that HD cells in the brain actNEURAL MODELS OF HEAD-DIRECTION CELLS PETER ZEIDMAN JOHN A. BULLINARIA School of Computer Science background of Head Direction Cells, and existing models of them, we introduce an improved neural model

Bullinaria, John

131

Volume Currents in Forward and Inverse Magnetoencephalographic Simulations Using Realistic Head Models  

E-Print Network [OSTI]

Volume Currents in Forward and Inverse Magnetoencephalographic Simulations Using Realistic Head of magnetoencephalographic MEG forward or in- verse simulations in realistic head models. We verify the accu- racy of our, in an inhomoge- neous, nonspherical realistic head model, the magnetic field normal to the MEG detector due

Utah, University of

132

Double-ring network model of the head-direction system Xiaohui Xie,1,  

E-Print Network [OSTI]

Double-ring network model of the head-direction system Xiaohui Xie,1, * Richard H. R. Hahnloser,1,2 and H. Sebastian Seung1,2 1 Department of Brain and Cognitive Sciences, Massachusetts Institute 2002; published 9 October 2002 In the head-direction system, the orientation of an animal's head

Xie, Xiaohui Sunney

133

Bay Head, New Jersey: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Head, New Jersey: Energy Resources Head, New Jersey: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 40.0717828°, -74.0543036° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.0717828,"lon":-74.0543036,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

134

Publishing of Three Memoranda for Heads of Agencies  

Broader source: Energy.gov (indexed) [DOE]

-8-80 -8-80 Vol. 45 No. 175 Pages 59135-59296 e Monday September 8, 1980 Federal Register / Vol. 45, No. 175 Monday, September 8, 1980 / Notices 59189 - -- COUNCIL ON ENVIRONMENTAL QUALITY Publishing of Three Memoranda for Heads of Agencies August 20,1980. The Council on Environmental Quality is publishing three Memoranda for Heads of Agencies. The first memorandum, dated August 11,1980, on Analysis of Impacts on Prime and Unique Agricultural Lands in Implementing the National Environmental Policy Act was developed in cooperation with the Department of Agriculture. It updates and supe asedes the Council's previous memorandum on this subject of August 1970. The second memorandum, dated August 11,1980, requests information on agency agriculatural land policies and

135

Indian Head Park, Illinois: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Head Park, Illinois: Energy Resources Head Park, Illinois: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 41.7703092°, -87.9022808° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.7703092,"lon":-87.9022808,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

136

Owls Head, Maine: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Owls Head, Maine: Energy Resources Owls Head, Maine: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 44.082303°, -69.0572612° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.082303,"lon":-69.0572612,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

137

MHK Projects/Brough Head Wave Farm | Open Energy Information  

Open Energy Info (EERE)

Brough Head Wave Farm Brough Head Wave Farm < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":59.081,"lon":-3.359,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

138

Bear Head Lake, Minnesota: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Head Lake, Minnesota: Energy Resources Head Lake, Minnesota: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 47.7638457°, -92.1265023° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":47.7638457,"lon":-92.1265023,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

139

New Theory Head to join PPPL | Princeton Plasma Physics Lab  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Returning to his Princeton roots: Returning to his Princeton roots: New Theory Head to join PPPL By John Greenwald August 27, 2012 Tweet Widget Facebook Like Google Plus One Amitava Bhattacharjee. (Photo by Kristi Donahue, University of New Hampshire Institute for the Study of Earth, Oceans and Space) Amitava Bhattacharjee. Physicist Amitava Bhattacharjee is returning to his academic roots. He arrives as the new head of the Theory Department at the Princeton Plasma Physics Laboratory (PPPL) on August 27, more than 30 years after completing his doctoral work here. He studied at PPPL from 1977 to 1980 while earning his M. A. and Ph.D. in astrophysical sciences from Princeton University, which runs the Laboratory for the U.S. Department of Energy (DOE). His past came flooding back to Bhattacharjee when he gave a talk at PPPL in

140

Development of Power-head based Fan Airflow Station  

E-Print Network [OSTI]

Development of Power-head Based Fan Airflow Station Gang Wang Research associate University of Nebraska, Lincoln Mingsheng Liu Professor University of Nebraska, Lincoln Abstract Fan airflow measurement is critical for heating... under partial loads. On the other hand, in most of airflow range, the power curve varies exquisitely. Wang and Liu developed the VFD airflow station to obtain the fan airflow using the power and speed based on the power curve. Both the fan...

Wang, G.; Liu, M.

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

F A C U L T Y DIVISION HEAD  

E-Print Network [OSTI]

D Barbara Price, PhD Gregory C. Richter, PhD Priscilla Riggle, PhD Linda Seidel, PhD Mary Shapiro, PhD GreggF A C U L T Y DIVISION HEAD Heinz D. Woehlk, PhD GRADUATE FACULTY Hena Ahmad, PhD Monica Barron, Ph Minch, PhD David Partenheimer, PhD Barry C. Poyner, PhD Alanna Preussner, PhD Arnold Preussner, Ph

Gering, Jon C.

142

Intelligent head-down display design for the smart cockpit  

E-Print Network [OSTI]

overload has become a highly important area of research. One such research program exists at Texas A&M University which deals extensively with the information overload problem through the concept of the "Smart Cue+it". This thesis follows the format of... be directly measured. These state variables include altitude, heading, indicated airspeed, pitch and roll attitude, and turn rate. One significantly beneficial component of the sensor suites is the Global Positioning System (GPS). By integrating GPS...

Branham, Paul Anthony

2012-06-07T23:59:59.000Z

143

Headdisk interface problems in first-surface near-field optical recording with flying optical head  

Science Journals Connector (OSTI)

Near-field recording (NFR) technology using a flying optical head is applied for high density optical data storage. Diamond-like carbon (DLC) film and PFPE lubricant film are coated on utmost NFR disk to reduce the tribological problems. A contamination at the headdisk interface (HDI), especially on a solid immersion lens (SIL) is observed. The contaminants are composed of dust materials from the surroundings and lubricant materials from a disk surface. The contaminants are supposed to be condensed by heat from a writing laser beam at the HDI. To avoid the contamination problem, a cover-layer is coated and a focal plane moved under the cover-layer from the HDI. First-surface near-field recording configuration can be modified by laminating a cover-layer, which enhances the possibility of a practical application with a media removability function.

Jin-Hong Kim

2008-01-01T23:59:59.000Z

144

Reactor pressure vessel head vents and methods of using the same  

DOE Patents [OSTI]

Internal head vents are usable in nuclear reactors and include piping inside of the reactor pressure vessel with a vent in the reactor upper head. Piping extends downward from the upper head and passes outside of the reactor to permit the gas to escape or be forcibly vented outside of the reactor without external piping on the upper head. The piping may include upper and lowers section that removably mate where the upper head joins to the reactor pressure vessel. The removable mating may include a compressible bellows and corresponding funnel. The piping is fabricated of nuclear-reactor-safe materials, including carbon steel, stainless steel, and/or a Ni--Cr--Fe alloy. Methods install an internal head vent in a nuclear reactor by securing piping to an internal surface of an upper head of the nuclear reactor and/or securing piping to an internal surface of a reactor pressure vessel.

Gels, John L; Keck, David J; Deaver, Gerald A

2014-10-28T23:59:59.000Z

145

MEMORANDUM FOR HEADS OF DEPARTMENTAL ELEMENTS FROM: IN GRID^,,  

Broader source: Energy.gov (indexed) [DOE]

2,2011 2,2011 MEMORANDUM FOR HEADS OF DEPARTMENTAL ELEMENTS FROM: IN GRID^,, DIRECT SUBJECT: Working Effectively with Contractors The Department of Energy (DOE) depends on contractors to provide vital support in achieving our mission. Their contributions are critical t o accomplishing our goals in such important areas as energy research and development, weapons production, stockpile management, and environmental remediation and restoration. Although contractors are integral to our mission accomplishment, we must respect the roles we each have in contract performance. DOE defines deliverables and the contractors determine how to best perform the work. With rare exception, DOE officials should not direct contractors' selection or termination of employees. Giving

146

Extreme high-head portables provide more pumping options  

SciTech Connect (OSTI)

Three years ago, Godwin Pumps, one of the largest manufacturers of portable pumps, introduced its Extreme Duty High Lift (HL) series of pumps and more mines are finding unique applications for these pumps. The Extreme HL series is a range single-stage Dri-Prime pumps with heads up to 600 feet and flows up to 5,000 gallons per minute. The American Coal Co.'s Galatia mine, an underground longwall mine in southern Illinois, used an HL 160 to replace a multiple-staged centrifugal pump. It provided Galatia with 1,500 gpm at 465 ft. 3 photos.

Fiscor, S.

2006-10-15T23:59:59.000Z

147

Supplement 23, Part 6, Section B. Subject Headings: J-Z, Parasite-Subject Headings and Treatment  

E-Print Network [OSTI]

by the Department over other products not mentioned. SUBJECT HEADINGS 583 Japan Kagei, N., 1973, Snake, v. 5 (1-2), 141-150 macroscopic endoparasites of snakes recorded in Japan Japan Kamiya, H.; et al., 19 73, Japan. J. Vet. Re- search, v. 21 (3), 51... African Med. J., v. 55 (il), 402 [Letter] amoebic liver abscess in patients presenting with jaundice or raised serum bilirubin, suggestions for management Jaundice Hirsch, R. P., 1979, Internat. J. Parasitol., v. 9 (5), 395-399 Histomonas...

Hood, Martha W.; Hanfman, Deborah T.; Edwards, Shirley J.; Rayburn, Jane D.; Kirby, Margie D.; Zidar, Judith A.; Shaw, Judith H.

1982-01-01T23:59:59.000Z

148

A study on the directional sensitivity of intracranial responses following head impact  

Science Journals Connector (OSTI)

The objective of the present study was to investigate the directional sensitivity of intracranial responses following head impact using a validated mid-sized finite element model of Chinese human head. An impact force was applied to different locations of the model with deformable skull and rigid skull, respectively, under the same boundary conditions. Then a translational acceleration was applied to the rigid skull by keeping the same head position resulting in the same head injury criteria (HIC) as in the cases with impact force. The results showed that directional effect of head impact altered intracranial responses and injury patterns. Brain tissue at impact site was at high risk of contusion during vertical impact and corpus callosum was vulnerable to the impact at forehead when the head was impacted in a 45 degree angle. It was also found that this sensitivity contributed more by a rigid skull than a deformable one.

Wei Zhao; Shijie Ruan; Haiyan Li; Shihai Cui; Lijuan He

2014-01-01T23:59:59.000Z

149

In search of a new governing failure criterion for torispherical heads  

SciTech Connect (OSTI)

The failure criterion that governs the present design rules of formed heads in Section 8/Div. 2 of the ASME B and PV Code limits crown displacement upon a single application of pressure, and it does so by means of a calculated collapse pressure. One problem with the rules is that they require greater head thicknesses than those of Section 8/Div. 1. Another problem is that recent test data taken for two formed heads have shown no signs of head displacements or deformations that could have rendered the heads unserviceable at pressures substantially higher than the calculated collapse pressures. Any link between the calculated collapse pressures and the failures of the test heads could not be established. The main thesis proposed in the paper is that such a link does not exist for torispherical heads in general. The reason for this is investigated theoretically and attributed to the geometric strengthening of heads, as they deform. It is recommended that the reasons for limiting displacements or deformations for a single application of pressure be reviewed and, if needed, a new failure criterion defined, or other failure modes, such as tensile plastic instability (burst), be considered. The latter mode is described and options for its evaluation are presented in this paper. The protection of torispherical heads against the failure modes of low-cycle fatigue and incremental plastic growth upon cyclic loading, which are controlled by shakedown, is not covered in this paper but is left to future investigations.

Kalnins, A.; Updike, D.P. [Lehigh Univ., Bethlehem, PA (United States); Rana, M.D. [Praxair, Inc., Tonawanda, NY (United States). Research and Development Dept.

1995-12-01T23:59:59.000Z

150

Treating radiation-induced trismus in head and neck cancer;Exercise intervention and risk structures.  

E-Print Network [OSTI]

??Abstract The overall aim of this thesis was to investigate the incidence of trismus in head and neck cancer (HNC) and to assess the treatment (more)

Pauli, Nina

2015-01-01T23:59:59.000Z

151

Imaging system for cardiac planar imaging using a dedicated dual-head gamma camera  

DOE Patents [OSTI]

A cardiac imaging system employing dual gamma imaging heads co-registered with one another to provide two dynamic simultaneous views of the heart sector of a patient torso. A first gamma imaging head is positioned in a first orientation with respect to the heart sector and a second gamma imaging head is positioned in a second orientation with respect to the heart sector. An adjustment arrangement is capable of adjusting the distance between the separate imaging heads and the angle between the heads. With the angle between the imaging heads set to 180 degrees and operating in a range of 140-159 keV and at a rate of up to 500kHz, the imaging heads are co-registered to produce simultaneous dynamic recording of two stereotactic views of the heart. The use of co-registered imaging heads maximizes the uniformity of detection sensitivity of blood flow in and around the heart over the whole heart volume and minimizes radiation absorption effects. A normalization/image fusion technique is implemented pixel-by-corresponding pixel to increase signal for any cardiac region viewed in two images obtained from the two opposed detector heads for the same time bin. The imaging system is capable of producing enhanced first pass studies, bloodpool studies including planar, gated and non-gated EKG studies, planar EKG perfusion studies, and planar hot spot imaging.

Majewski, Stanislaw (Morgantown, VA); Umeno, Marc M. (Woodinville, WA)

2011-09-13T23:59:59.000Z

152

Specification for the Reattachment of the EC South Cryostat Heads  

SciTech Connect (OSTI)

This Engineering Note defines technical requirements and the scope of work for reattachment of the heads of the South EC cryostat. This work is to be done in the clean room at the D-Zero Assembly Building (DAB) at Fermilab.and is expected to begin around September 15, 1991. The task consists primarily of welding four heads onto a 17-foot diameter stainless steel double-wall pressure/vacuum vessel. Nominal thicknesses of the welds are all 5/8-inch. Root passes are to be made by TIG welding and the balance by MIG welding. No radiography is required; other NDE per ASME Code, Section VIII, Div. 1. All work is to be done in accordance with the Rules of the National Board of Boiler and Pressure Vessel Inspectors (ANSI/NB-23), and repairs to the inner vessel are to be documented by the R-1 form executed by the Contractor's Authorized Inspector. The Contractor will be expected to work two shifts per day, five days per week to support the Fermilab schedule. Details of the cryostat are given on Fermilab Drawings 3740.220-ME-222256, Rev. R, 3740.224-ME-273071, and 3740.224-ME-273039. The cryostat was fabricated by Process Engineering, Inc. of Plaistow, NH in 1989-90. The heads were removed using hand-held air-arc gouging equipment. As a result the welding grooves are not straight and their widths are not uniform. In some places the width maybe as wide as 1-inch. For the purposes of quotation, the Contractor should assume a uniform weld groove as shown in Figure 1. The amount of weld metal to be deposited for this geometry is estimated to be 500 lbs. Upon completion, the final contract price will be determined by the following formula: Final Price = Contract Price x (lbs of weld metal deposited/500). Methods of determining the amount of weld metal deposited will be agreed upon before award of the contract.

Luther, R.; /Fermilab

1991-08-01T23:59:59.000Z

153

Notes on non-commutative integration Antoine Flattot  

E-Print Network [OSTI]

[5], who defined the Lp spaces for 1 p and Stinespring [14] and culminated with the article of Nelson [7] who used the convergence in measure introduced by Stinespring to give a nice definition of Lp spaces. It is interesting to note that actually the articles of Kunze and Stinespring were part

Flattot, Antoine

154

MEMORANDUM TO HEADS O F CONTRACTING ACTIVITIES AND PROCUREMENT DIRECTORS  

Broader source: Energy.gov (indexed) [DOE]

2010 2010 MEMORANDUM TO HEADS O F CONTRACTING ACTIVITIES AND PROCUREMENT DIRECTORS FROM: DIRECTOR OFFICE OF CONTRACT MANAGEMENT SUBJECT: Establishment of Requirement for Monthly Status Reporting on Source Evaluation Boards (SEBs) Valued in Excess of $25 Million As everyone is aware, DOE accomplishes the majority of its work through its various contracts. In recent years, the Department has drawn increased scrutiny from a number of different sources. As a result, the procurement process receives a tremendous amount of visibility among senior DOE management, particularly our largest and most critical procurements which are conducted by SEBs. This highlights the critical need for SEB reporting and tracking. At the Procurement Directors meeting held in December 2009, it was mentioned during

155

MEMORANDUM FOR HEADS OF DEPARTMENTAL ELEMENTS FROM: TIMOTHY M. DIRKS  

Broader source: Energy.gov (indexed) [DOE]

8, 2001 8, 2001 MEMORANDUM FOR HEADS OF DEPARTMENTAL ELEMENTS FROM: TIMOTHY M. DIRKS DIRECTOR OF HUMAN RESOURCES MANAGEMENT SUBJECT: PREVENTIVE HEALTH SCREENINGS As you know, the Secretary recently issued a statement on Worknife Programs, specifically addressing the issues of telecommuting and preventive health measures; a copy of the statement, which was distributed via DOECAST, is attached to this memorandum. The statement provided that the Office of Management and Administration would issue guidelines in support of the new Secretarial policy which authorizes all Department of Energy Federal employees "up to 4 hours of excused absence each leave year in order to participate in preventive health screenings." The following responds to the Secretary's direction for guidelines and provides related information.

156

Memorandum for the Heads of Executive Departments and Agencies  

Broader source: Energy.gov (indexed) [DOE]

October 7, 2009 October 7, 2009 M-10-02 MEMORANDUM FOR THE HEADS OF EXECUTIVE DEPARTMENTS AND AGENCIES FROM: Peter R. Orszag Director SUBJECT: Guidance on section 163 of the Continuing Resolution regarding the Association of Community Organizations for Reform Now (ACORN) This memorandum provides guidance to Executive Branch agencies regarding the implementation of section 163 of the Continuing Appropriations Resolution, 2010, Division B of Pub. L. No. 111-68 (CR), which states: SEC. 163. None of the funds made available by this joint resolution or any prior Act may be provided to the Association of Community Organizations for Reform Now (ACORN), or any of its affiliates, subsidiaries, or allied organizations. Your agency must immediately commence all necessary and appropriate steps to comply with

157

Beard to lead Business, Operations Directorate; Girrens named head of  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Carl Beard new PADOPS Director Carl Beard new PADOPS Director Beard to lead Business, Operations Directorate; Girrens named head of Engineering Beard came to Los Alamos in 2006 to help lead the Stockpile Manufacturing and Support organization. May 4, 2011 Carl Beard Carl Beard Contact Steve Sandoval Communicatons Office (505) 665-9206 Email LOS ALAMOS, New Mexico, May 4, 2011-Carl Beard is the new principal associate director for Business and Operations at Los Alamos National Laboratory. Beard succeeds Mike Mallory, who earlier this year announced his retirement. "Carl is a highly accomplished and versatile leader, managing a wide range of scientific and manufacturing operations," Laboratory Director Michael Anastasio said. "At Los Alamos and elsewhere, Carl's teams have improved productivity and safely executed programs," he said, noting that

158

LANL names new head of Plutonium Science and Manufacturing  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Jeff Yarbrough joins Los Alamos from B&W Pantex Jeff Yarbrough joins Los Alamos from B&W Pantex LANL names new head of Plutonium Science and Manufacturing Jeff Yarbrough joins Los Alamos from the B&W Pantex plant in Amarillo, Texas. March 2, 2012 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Contact Kevin Roark Communications Office

159

Bret Knapp to head combined Weapons Engineering, Weapons Physics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Weapons Engineering, Weapons Physics Directorates Weapons Engineering, Weapons Physics Directorates Bret Knapp to head combined Weapons Engineering, Weapons Physics Directorates at Los Alamos National Laboratory New leadership position will allow for greater integration in the planning and execution of the stockpile stewardship program. August 18, 2009 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy

160

ESnet Update Steve Cotter, Dept Head Lawrence Berkeley National Lab  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Update Update Steve Cotter, Dept Head Lawrence Berkeley National Lab Winter 2011 Joint Techs Clemson, SC Feb 2, 2011 Lawrence Berkeley National Laboratory U.S. Department of Energy | Office of Science @ESnet: It's all about the Science * More bandwidth to DOE facilities and Labs at lower costs * Richer network services in support of distributed science - Develop 'network aware' integrated services that deliver 'end-to-end' high- performance data transfer, HPC/cloud computing, and science collaborative services * Carrier-class network operations providing high network availability to all DOE facilities - Seamless network interoperability across multiple network domains * Develop and deploy energy-aware and efficient networking infrastructure * Provide a networking research testbed for DOE community

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161

MEMORANDUM FOR HEADS OF CONTRACTING ACTIVITY AND PROCUREMENT DIRECTORS  

Broader source: Energy.gov (indexed) [DOE]

6,2010 6,2010 MEMORANDUM FOR HEADS OF CONTRACTING ACTIVITY AND PROCUREMENT DIRECTORS FROM: SUBJECT: PATRICK M. FERRARO ACTING DIRECTOR OFFICE OR PROCUREMEN ! f ASSISTANCE M JOSEPH WADDEL DIRECTOR r & OFFICE OF ACQU&ITION AND I SUPPLY MANAGEMENT (NA-63) NATIONAL NUCLEAR SECURITY ADMINISTRATION Acquisition Career Management Handbook Change 2010-03 Chapter 3 Federal Acquisition Certification in Contracting (FAC-C) Level II The purpose of this memorandum is t o announce ACMP Change 2010-03. This change amends the experience requirement for FAC-C Level II certification as currently stated in Chapter 3 o f the January 2009, revision of the Department's Acquisition Career Management Program Handbook (ref: Policy Flash 2009-17). In order for the Department of Energy (DOE) t

162

Bauer named Facilities, Infrastructure and Services head | Y-12 National  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Bauer named Facilities, ... Bauer named Facilities, ... Bauer named Facilities, Infrastructure and Services head Posted: August 27, 2012 - 1:01pm B&W Y-12 President and General Manager Chuck Spencer has named Linda Bauer as vice president of Facilities, Infrastructure and Services (FI&S). Bauer most recently served as senior vice president with Los Alamos Technical Associates, Inc. helping direct large-scale government and private endeavors, such as the Portsmouth Environmental Restoration Project and the Depleted Uranium Hexafluoride Conversion Project. Linda Bauer, vice president of Facilities, Infrastructure and Services With 24 years of experience, she also has held positions such as senior operations manager for the Babcock and Wilcox Technical Services Group and multiple management roles at BWXT Savannah River Company.

163

MEMORANDUM FOR HEADS OF DEPARTMENTAL ELEMENTS OTHER THAN THE  

Broader source: Energy.gov (indexed) [DOE]

, 2013 , 2013 MEMORANDUM FOR HEADS OF DEPARTMENTAL ELEMENTS OTHER THAN THE NA TI ON AL NUCLEAR SECURITY ADMINISTRATION FROM: SUBJECT: ROBERT C. GIBBS ~Mb CHIEF HUMAN CAPITAL OFFICER W AIYER OF THE BI-WEEKLY PAY LIMITATION FOR EMERGENCY RESPONSE ACTIVITIES This memorandum replaces: 1) the January 31, 2002, memorandum from Timothy M. Dirks, (former) Director of Human Resources Management, subject: Waiver of Bi-Weekly Premium Pay Limitation, pertaining to "emergency work in connection with the continuing and immediate threat of further attacks on the United States;" 2) the April 25, 2003, memorandum from Claudia A. Cross, (former) Acting Director of Human Resources Management and Michael C. Kane, (former) Deputy Associate Administrator for Management & Administration, NNSA, subject: Waiver of Bi-Weekly

164

Tribo-chemistry at the head/disk interface  

SciTech Connect (OSTI)

Tribo-chemical studies at the head/disk interface (HDI) were conducted on hydrogenated (CH{sub x}), nitrogenated (CN{sub x}), and cathodic-arc amorphous hard carbon disk samples coated with perfluoropolyether ZDOL and X1P/ZDOL lubricant. The studies involved drag tests with uncoated and carbon-coated Al{sub 2}O{sub 3}-TiC sliders and thermal desorption experiments in an ultra-high vacuum (UHV) tribochamber followed with a surface chemistry analysis by X-ray Photo Emission Electron Microscopy (X-PEEM) and Near Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopy. The friction and catalytic decomposition mechanisms of ZDOL are described, as well as the tribo-chemical performance of cathodic-arc carbon overcoats coated with ZDOL, and data demonstrating the chemical alteration of the lubricant and carbon overcoat are also presented.

Bhatia, C.S. [SSD/IBM, San Jose, CA (United States)] [SSD/IBM, San Jose, CA (United States); Fong, W.; Chen, C.Y.; Wei, J.; Bogy, D.B. [Univ. of California, Berkeley, CA (United States). Computer Mechanics Lab.] [Univ. of California, Berkeley, CA (United States). Computer Mechanics Lab.; Anders, S.; Stammler, T. [Lawrence Berkeley National Lab., CA (United States)] [Lawrence Berkeley National Lab., CA (United States); Stoehr, J. [IBM Research Div., San Jose, CA (United States)] [IBM Research Div., San Jose, CA (United States)

1999-03-01T23:59:59.000Z

165

Systematic dental management in head and neck irradiation  

SciTech Connect (OSTI)

Preservation of teeth has been possible in 528 head and neck patients treated with irradiation at Centre Georges Leclerc, University of Dijon, by careful adherence to precise dental care. Careful initial dental evaluation with appropriate x rays, restoration of oral hygiene, atraumatic extraction technique where indicated, and institution of a program of topical fluoridation has resulted in an overall incidence of less than 3% post-irradiation dental decay and 2% osteoradionecrosis. In a small group of 22 patient who required extraction post-irradiation, precise, strict technique resulted in successful extraction in all but one patient who subsequently developed osteonecrosis. Soft-based dental prostheses were well tolerated in nearly 90% of patients. Adherence to the described principles of dental care will virtually eliminate post-irradiation decay and osteoradionecrosis.

Horiot, J.C. (Centre Georges Leclerc, Dijon, France); Bone, M.C.; Ibrahim, E.

1981-08-01T23:59:59.000Z

166

Bailer for top head drive rotary well drills  

SciTech Connect (OSTI)

A bailer mounted to the derrick of a top head drive well drilling rig is described. The bailer includes a winch line drum mounted by a bracket to the derrick. A positive displacement hydraulic motor mounts one end of the drum and receives fluid under pressure from the existing hydraulic pressure supply. Valving is provided to allow reverse operation of the motor so equipment can either be raised or lowered relative to the derrick. The hydraulic delivery line to the motor includes a one way restrictor that will allow relatively free passage of fluid to the motor in a driving or lifting mode but will reverse flow of fluid from the motor, thereby affording a braking effect for lowering a load at a selected rate.

Bartholomew, L.

1980-09-23T23:59:59.000Z

167

Nuclear Engineering and Design 189 (1999) 757 Lower head integrity under steam explosion loads  

E-Print Network [OSTI]

Nuclear Engineering and Design 189 (1999) 7­57 Lower head integrity under steam explosion loads T Engineering, Building 208, Argonne National Laboratory, 9700 South Cass A6enue, Argonne, IL 60439, USA Received 24 August 1998; accepted 24 November 1998 Abstract Lower head integrity under steam explosion

Yuen, Walter W.

168

Head tilt during driving DANIEL C. ZIKOVITZ and LAURENCE R. HARRIS *  

E-Print Network [OSTI]

Head tilt during driving DANIEL C. ZIKOVITZ ² and LAURENCE R. HARRIS² * Departments of ² Biology and Psychology, York University, Toronto, Ontario M3J 1P3, Canada Keywords: Driving behaviour; Head tilt; Vision with the visually-available estimate of the curvature of the road (r 2 = 0.86) but not with the centripetal force (r

Harris, Laurence R.

169

Journees Automates Cellulaires 2008 (Uz`es), pp. 54-64 SOFIC ONE HEAD MACHINES  

E-Print Network [OSTI]

Journ´ees Automates Cellulaires 2008 (Uz`es), pp. 54-64 SOFIC ONE HEAD MACHINES A. GAJARDO-dimensional Turing machines with only one head is adopted. A subshift is associated to each Turing machine, and its properties are studied. The subshift consists in the set of sequences of symbols that the machine reads

Paris-Sud XI, Université de

170

Multi-atlas Segmentation in Head and Neck CT Scans Amelia M. Arbisser  

E-Print Network [OSTI]

Multi-atlas Segmentation in Head and Neck CT Scans by Amelia M. Arbisser B.S., Computer Science of Engineering Thesis Committee #12;2 #12;Multi-atlas Segmentation in Head and Neck CT Scans by Amelia M, we employ an atlas of labeled training images. We register each of these images to the unlabeled

Golland, Polina

171

The Point Spread Function of the Human Head and its Implications for Transcranial Current  

E-Print Network [OSTI]

The Point Spread Function of the Human Head and its Implications for Transcranial Current distribution in the head resulting from the application of scalp currents. Derivation of forward models has represented a major effort in brain stimulation research, with model complexity ranging from spherical shells

Parra, Lucas C.

172

PS3060: Perception and Action (L.3) Driving a vehicle: control of heading,  

E-Print Network [OSTI]

1 PS3060: Perception and Action (L.3) Driving a vehicle: control of heading, collision avoidance 11, 12 of Bruce, Green & Georgeson 2003) · the ecological approach to vision: from insects to humans · collision: judging time to impact, braking a vehicle · heading: how you know in which direction you

Zanker, Johannes M.

173

Rat anterodorsal thalamic head direction neurons depend upon dynamic visual signals to select anchoring  

E-Print Network [OSTI]

Rat anterodorsal thalamic head direction neurons depend upon dynamic visual signals to select., 21, RC154,1­5]. Anterodorsal thalamic head direction cells were recorded while the rat foraged vantage point and separated by 90°. The rat was then disoriented in darkness, the cards were rotated by 90

Arleo, Angelo

174

Fruit and Vegetable Servings in Local Farm-Sourced and Standard Lunches Offered to Children in a Head Start Program  

E-Print Network [OSTI]

This project compared servings of fruits and vegetables consumed in farm-to-school lunches to that in conventional lunches served to students attending a Head Start preschool. The sample used was the student population of a Head Start preschool...

Johnson, Amy M.

2010-04-25T23:59:59.000Z

175

TORE SUPRA : Physics, Technology and ...Strategy - Andre GROSMAN - Deputy Head of Magnetic Fusion Research Institute (CEA/DSM/IRFM)  

E-Print Network [OSTI]

TORE SUPRA : Physics, Technology and ...Strategy - Andre GROSMAN - Deputy Head of Magnetic Fusion Research Institute (CEA/DSM/IRFM)

CERN. Geneva

2011-01-01T23:59:59.000Z

176

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, VOL. 41, NO. 11, NOVEMBER 1996 I073 Combinedl Head and Eye Tracking System for  

E-Print Network [OSTI]

range of head motion, mainly low-frequency, yaw rotation. An integrated eye-head tracking system and Eye Tracking System for Dynamilc Testing of the Vestibular System Robert S. Allison,* Moshe Eizenman, and Bob S. K. Cheung Abstruct- We present a comlbined head-eye tracking system suitable for use with free

Allison, Robert

177

The nerve supply to the major organs and tissues of the caprine head  

E-Print Network [OSTI]

THE NERVE SUPPIJF TO THE MAJOR ORGANS AND TISSUES OF 1'i E CAPRINE HEAD A Thesis by M ICHA EL EDWARD TATUM Submitted to the Graduate Co11ege of the Texas A I: M University in partial fulf illment, of the requirements for the d gr e of MASTER... OF SCIENCE May 1959 Majov Subjort: Veterinary Anatomy THE NERVE SUPPLY TO THE MAJOR ORGANS AND TISSUES OF THE CAPRINE HEAD A Thesis by MICHAEL EDWARD TATUM Approved as to style and content by: airman of Commit (Member) {Head q' ' Depar tment Qiien...

Tatum, Michael Edward

2012-06-07T23:59:59.000Z

178

State of the art for nanospacing flying head slider mechanisms in magnetic recording disk storage  

Science Journals Connector (OSTI)

This paper reports results obtained from studies on important and critical issues related to nanospacing head-disk interface (HDI) development, which has to be achieved in high density (Gb in?2) magnetic recording. The new concepts for flying head slider mechanisms and novel non-contact start-stop systems are also reviewed. It is essential to understand the nanospacing HDI phenomena and to develop new breakthrough technology for head mechanisms and start-stop systems. These issues can be settled through the integration of micromechatronics and microtribology.

N. Tagawa

1993-01-01T23:59:59.000Z

179

Use of dental X rays on postirradiated patients with head and neck cancer  

SciTech Connect (OSTI)

As cancer therapy becomes more successful and cancer survival rates increase, the dentist will be treating more patients who have received radiation therapy for head and neck cancer. Occasionally, patients and health professionals have indicated a belief that patients who have received irradiation to the head and neck regions should not be subjected to additional radiation through dental diagnostic X-ray exposures. A literature search failed to find any references that specifically addressed this question. This study reflects the opinions of 278 radiation oncologists (400 surveyed) who responded to questions about contraindications of dental X rays for the patient with head and neck cancer.

Jones, G.A.; Purdy, R.B.; Stoker, H.W.; Palmer RW 4

1988-10-01T23:59:59.000Z

180

Improved Combustion of Asphaltite Coals in a Rotating Head Combustor with Various Air Supply Arrangements  

Science Journals Connector (OSTI)

A small amount of ash is drifted via combustion gas in fine particles while great deal of it flow into the ash pit in the form of clinker from the open side of combustion head. ... In this study, it was shown that the swelling coals that were difficult to burn in conventional stokers could be burned using a rotating head combustor in high efficiencies without any ash problem. ... In this work, a rotating head combustor, which has been designed for burning the coking coals effectively, was deployed to burn a range of coals available in Turkey under agitation conditions with secondary air delivery. ...

Cengiz ner; ?ehmus Altun

2014-04-16T23:59:59.000Z

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

45 Fed Reg 59189: Publishing of Three Memoranda for Heads of Agencies |  

Broader source: Energy.gov (indexed) [DOE]

45 Fed Reg 59189: Publishing of Three Memoranda for Heads of 45 Fed Reg 59189: Publishing of Three Memoranda for Heads of Agencies 45 Fed Reg 59189: Publishing of Three Memoranda for Heads of Agencies The Council on Environmental Quality is publishing three Memoranda for Heads of Agencies. The first memorandum, dated August 11,1980, on Analysis of Impacts on Prime and Unique Agricultural Lands in Implementing the National Environmental Policy Act was developed in cooperation with the Department of Agriculture. It updates and supersedes the Council's previous memorandum on this subject of August 1970. The second memorandum, dated August 11,1980, requests information on agency agriculatural land policies and other information related to the implementation of the first memorandum. The third memorandum, dated August 20,1980, on Interagency Consultation to

182

Jeff Broughton Brings 30 Years of HPC Experience to NERSC as New Head of  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Jeff Broughton Brings Jeff Broughton Brings 30 Years of HPC Experience to NERSC as New Head of Systems Department Jeff Broughton Brings 30 Years of HPC Experience to NERSC as New Head of Systems Department July 31, 2009 Jeffrey M. Broughton, who has 30 years of HPC and management experience, has accepted the position of Systems Department Head at the Department of Energy's (DOE) National Energy Research Scientific Computing Center (NERSC). Broughton, who most recently served as senior director of engineering at QLogic Corp., joins NERSC on Monday, August 3. "I'm very pleased to announce that Jeff Broughton has accepted the position of Systems Department Head at NERSC," said Kathy Yelick, NERSC Director. "This is a key position for us, and Jeff will be responsible

183

SFU Psychology Department 1 Running head: SFU: APA STYLE FOR PAPERS  

E-Print Network [OSTI]

SFU Psychology Department 1 Running head: SFU: APA STYLE FOR PAPERS SFU Psychology Department: American Psychological Association Style for Undergraduate Papers Joan Wolfe Simon Fraser University Student number, PSYC ###; section #.##, TA's name, instructor's name, due date. #12;SFU Psychology

184

Head Rotational Acceleration Characteristics Influence Behavioral and Diffusion Tensor Imaging Outcomes Following Concussion  

Science Journals Connector (OSTI)

A majority of traumatic brain injuries (TBI) in motor vehicle crashes ... and caused by high-rate acceleration of the head. For injuries caused by rotational acceleration, ... Ninety-two SpragueDawley rats were ...

Brian D. Stemper; Alok S. Shah; Frank A. Pintar

2014-10-01T23:59:59.000Z

185

E-Print Network 3.0 - advanced head-and-neck cancer Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

cancer Search Powered by Explorit Topic List Advanced Search Sample search results for: advanced head-and-neck cancer Page: << < 1 2 3 4 5 > >> 1 Patient geometry-driven...

186

Running head: COGNITIVE ROBOTICS AND EXPERIMENTAL PSYCHOLOGY Computational Modeling/Cognitive Robotics Compliments  

E-Print Network [OSTI]

Running head: COGNITIVE ROBOTICS AND EXPERIMENTAL PSYCHOLOGY Computational Modeling/Cognitive;Cognitive Robotics and Experimental Psychology 2 Abstract This position paper explores the possible contributions to the science of psychology from insights obtained by building and experimenting with cognitive

Memphis, University of

187

An optical see-through head mounted display with addressable focal planes  

Science Journals Connector (OSTI)

Most existing stereoscopic head mounted displays (HMDs), presenting a pair of stereoscopic images at a fixed focal distance, lack the ability to correctly render the naturally coupled accommodation and convergence cues. Psychophysical studies have shown ...

Sheng Liu; Dewen Cheng; Hong Hua

2008-09-01T23:59:59.000Z

188

Thickness Change in Molecularly Thin Lubricant Under Flying Head in Hard Disk Drives  

Science Journals Connector (OSTI)

In hard disk drives (HDDs), lubricants on disks are very important material to reduce head and disk wear. Thus, it is necessary to ... thickness to keep lubricant thickness constant on rotating disks. For this pu...

K. Yanagisawa; T. Watanabe; Y. Kawakubo; M. Yoshino

2010-10-01T23:59:59.000Z

189

Active-head sliders using piezoelectric thin films for flying height control  

Science Journals Connector (OSTI)

This paper describes design and fabrication of a MEMS-based active-head slider using a PZT thin film for flying height control in hard disk drives. A piezoelectric cantilever integrated in the ... air bearing sli...

Kenji Suzuki; Takayuki Akimatsu; Kenji Sasaki; Masayuki Kurita

2005-08-01T23:59:59.000Z

190

Characterization of light contact in head disk interface with dynamic flying height control  

Science Journals Connector (OSTI)

This paper presents an investigation of the light contact in a head disk interface with dynamic flying height control. The touchdown test is conducted for a dynamic flying height control slider and the response i...

Jianfeng Xu; Gang Sheng

2011-06-01T23:59:59.000Z

191

Development of an optical flying head for a next-generation magneto-optical recording system  

Science Journals Connector (OSTI)

We have developed an optical flying head (OFH) comprising a thin-film ... numerical aperture lens for magneto-optical (MO) disk drives. Experiments have shown successful writing and...

Goroh Kawasaki; Tsuyoshi Matsumoto; Nobuyuki Kanto

2005-08-01T23:59:59.000Z

192

Shakedown and stress range of torispherical heads under cyclic internal pressure  

SciTech Connect (OSTI)

Two effects on shakedown of torispherical heads are addressed in this paper: (1) changing geometry, and (2) initial pressurization, such as by a hydro (or proof) test. Shakedown and the cycled stress intensity range are calculated for two head geometries, having diameter-to-thickness ratios of 238 and 192. The calculations are carried out following two approaches: (1) using a nonlinear, elastic-plastic algorithm that accounts for changes in geometry, and (2) using elastic stresses in the undeformed geometry, which is the commonly used approach. The results show that, when the two geometries are subjected to the same initial and cyclic pressures, shakedown is achieved by the first approach but not by the second. Since real heads do benefit from geometry changes, and since most design codes require hydro (or proof) tests before operation, the first approach is recommended for the design of torispherical heads.

Kalnins, A.; Updike, D.P. [Lehigh Univ., Bethlehem, PA (United States). Mechanical Engineering and Mechanics

1996-12-01T23:59:59.000Z

193

Evolution of Mesoscale Precipitation Band Environments within the Comma Head of Northeast U.S. Cyclones  

Science Journals Connector (OSTI)

This paper explores the mesoscale forcing and stability evolution of intense precipitation bands in the comma head sector of extratropical cyclones using the 32-km North American Regional Reanalysis, hourly 20-km Rapid Update Cycle analyses, and ...

David R. Novak; Brian A. Colle; Anantha R. Aiyyer

2010-06-01T23:59:59.000Z

194

Bunker View: Limited-range head-motion-parallax visualization for complex data sets  

E-Print Network [OSTI]

Bunker View: Limited-range head-motion-parallax visualization for complex data sets Andrei State tracking. #12;3. THE BUNKER VIEW SYSTEM We propose to use image precomputation to avoid high lag and low

State, Andrei

195

The Health Component of Head Start: Potential Impacts on Childhood Obesity, Immunizations, and Dental Health  

E-Print Network [OSTI]

Head Start, an early intervention program administered by the Administration for Children and Families of the Department of Health and Human Services, offers children of low-income families comprehensive services in an effort to even the playing...

Banda, Tanya Y.

2010-01-14T23:59:59.000Z

196

An analytical study of rail grinding optimization for rail-head fatigue defect prevention  

E-Print Network [OSTI]

and increased train traffic on the remaining routes. These changes in railroad industry practice have caused an increase in the rate of occurrence of rail head fatigue defects, one potential cause of train derailment. The primary form of maintenance employed...

Jones, Scott Laurence

1997-01-01T23:59:59.000Z

197

Application of the cumulative risk model in predicting school readiness in Head Start children  

E-Print Network [OSTI]

This study investigates the degree to which the cumulative risk index predicted school readiness in a Head Start population. In general, the reviewed studies indicated the cumulative risk model was efficacious in predicting adverse developmental...

Rodriguez-Escobar, Olga Lydia

2009-05-15T23:59:59.000Z

198

Running head: GEOTHERMAL POWER PRODUCTION 1 Geothermal Power Production for Emmonak, Alaska  

E-Print Network [OSTI]

January 2009. This paper researches the possibility of using geothermal energy as an alternative energy Energy Investment cost .................................................... 40 Geothermal use in AlaskaRunning head: GEOTHERMAL POWER PRODUCTION 1 Geothermal Power Production for Emmonak, Alaska Anthony

Scheel, David

199

Going Global Inspired by passion and driven by research, Western Heads East (WHE)  

E-Print Network [OSTI]

Going Global Inspired by passion and driven by research, Western Heads East (WHE) is an innovative an important difference in the remediation of diarrhea ­ a condition that kills a child every 12 seconds

Denham, Graham

200

Simulations of coherent beam-beam effects with head-on compensation  

SciTech Connect (OSTI)

Electron lenses are under construction for installation in RHIC in order to mitigate the head-on beam-beam effects. This would allow operation with higher bunch intensity and result in a significant increase in luminosity. We report on recent strong-strong simulations and experiments that were carried out using the RHIC upgrade parameters to assess the impact of coherent beam-beam effects in the presence of head-on compensation.

White S.; Fischer, W.; Luo. Y.

2012-05-20T23:59:59.000Z

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Head/tail Breaks for Visualization of City Structure and Dynamics  

E-Print Network [OSTI]

The things surrounding us vary dramatically, which implies that there are far more small things than large ones, e.g., far more small cities than large ones in the world. This dramatic variation is often referred to as fractal or scaling. To better reveal the fractal or scaling structure, a new classification scheme, namely head/tail breaks, has been developed to recursively derive different classes or hierarchical levels. The head/tail breaks works as such: divide things into a few large ones in the head (those above the average) and many small ones (those below the average) in the tail, and recursively continue the dividing process for the large ones (or the head) until the notion of far more small things than large ones has been violated. This paper attempts to argue that head/tail breaks can be a powerful visualization tool for illustrating structure and dynamics of natural cities. Natural cities refer to naturally or objectively defined human settlements based on a meaningful cutoff averaged from a massi...

Jiang, Bin

2015-01-01T23:59:59.000Z

202

A study to determine the most effective actuation valve and water distribution head combination for emergency showers  

E-Print Network [OSTI]

for corrosion and wear. Pressure test to determine strength. (5) Remove shower head and dismantle. Clean scale and rust, from the head inlet and from the slots or orifices in the baffle plate. (6) Reassemble. (7) Open OSBY valve and replace seal..., and orifice sprinkler water distribution heads to determine which valve/head combination produced the greatest flow rate at varying static water pressures. Flow rates were measured at static pressures of 20, 30. 40, 50, and 60 pounds per square inch gauge...

Presswood, James Columbus

1977-01-01T23:59:59.000Z

203

Raft River monitor well potentiometric head responses and water quality as  

Open Energy Info (EERE)

monitor well potentiometric head responses and water quality as monitor well potentiometric head responses and water quality as related to the conceptual ground-water flow system Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Raft River monitor well potentiometric head responses and water quality as related to the conceptual ground-water flow system Details Activities (1) Areas (1) Regions (0) Abstract: Ground-water monitoring near the Raft River site was initiated in 1974 by the IDWR. This effort consisted of semiannual chemical sampling of 22 irrigation wells near the Raft River geothermal development area. This program yielded useful baseline chemical data; however, several problems were inherent. For example, access to water pumped from the wells is limited to the irrigation season (April through September). All the wells

204

Hurricane Earl - Where Is It Headed and What Does It Have to Do With  

Broader source: Energy.gov (indexed) [DOE]

Hurricane Earl - Where Is It Headed and What Does It Have to Do Hurricane Earl - Where Is It Headed and What Does It Have to Do With Energy? Hurricane Earl - Where Is It Headed and What Does It Have to Do With Energy? September 1, 2010 - 5:50pm Addthis Dr. Richard Newell Dr. Richard Newell Hurricane Earl has the East Coast of the United States in his sights. Earl is moving northward from the Bahamas, and is expected to skirt the U.S. Atlantic coast from Cape Hatteras to New England, before making landfall in Nova Scotia over the Labor Day weekend. But hurricane paths are uncertain, so we'll have to wait and see where Earl actually ends up. In any event, what does this have to do with energy? Hurricanes can disrupt energy supplies and markets. In addition to the potential for electricity outages, hurricanes can affect offshore oil and gas production, petroleum

205

Atmospheric Carbon Dioxide Record from In Situ Measurements at Baring Head  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Baring Head Baring Head Atmospheric Carbon Dioxide Record from In Situ Measurements at Baring Head graphics Graphics data Data Investigators M.R. Manning, A.J. Gomez, K.P. Pohl National Institute of Water and Atmospheric Research, Ltd., Climate Division, Gracefield Road, Gracefield, P.O. Box 31-311, Lower Hutt, New Zealand Period of Record 1970-93 Methods Determinations of atmospheric CO2 mixing ratios are made using a Siemens Ultramat-3 nondispersive infrared (NDIR) gas analyzer. The NDIR CO2 analyzer is connected via a gas manifold consisting of stainless steel tubing and computer-controlled solenoid switches to 12 gas cylinders and 2 sample air lines. The NDIR analyzer compares ambient air CO2 mixing ratios relative to known CO2 mixing ratios in tanks of compressed reference gases.

206

Hurricane Earl - Where Is It Headed and What Does It Have to Do With  

Broader source: Energy.gov (indexed) [DOE]

Hurricane Earl - Where Is It Headed and What Does It Have to Do Hurricane Earl - Where Is It Headed and What Does It Have to Do With Energy? Hurricane Earl - Where Is It Headed and What Does It Have to Do With Energy? September 1, 2010 - 5:50pm Addthis Dr. Richard Newell Dr. Richard Newell Hurricane Earl has the East Coast of the United States in his sights. Earl is moving northward from the Bahamas, and is expected to skirt the U.S. Atlantic coast from Cape Hatteras to New England, before making landfall in Nova Scotia over the Labor Day weekend. But hurricane paths are uncertain, so we'll have to wait and see where Earl actually ends up. In any event, what does this have to do with energy? Hurricanes can disrupt energy supplies and markets. In addition to the potential for electricity outages, hurricanes can affect offshore oil and gas production, petroleum

207

University at Albany Students Head Back to a School Powered with Renewable  

Broader source: Energy.gov (indexed) [DOE]

at Albany Students Head Back to a School Powered with at Albany Students Head Back to a School Powered with Renewable Energy University at Albany Students Head Back to a School Powered with Renewable Energy August 24, 2012 - 10:00am Addthis University at Albany's new student housing center, Liberty Terrace, is the school's first LEED Gold certified facility. The building has high-efficiency lighting and uses 45 percent less water than a comparable building. | Photo courtesy of the University at Albany. University at Albany's new student housing center, Liberty Terrace, is the school's first LEED Gold certified facility. The building has high-efficiency lighting and uses 45 percent less water than a comparable building. | Photo courtesy of the University at Albany. To help regulate Liberty Terrace's temperature, the school installed a geothermal heat pump, which is expected to reduce energy use by 50 percent. | Photo courtesy of the University at Albany.

208

Head of EM to Kick Off Congressional Nuclear Cleanup Caucus | Department of  

Broader source: Energy.gov (indexed) [DOE]

Head of EM to Kick Off Congressional Nuclear Cleanup Caucus Head of EM to Kick Off Congressional Nuclear Cleanup Caucus Head of EM to Kick Off Congressional Nuclear Cleanup Caucus April 22, 2013 - 12:00pm Addthis WASHINGTON, D.C. - EM Senior Advisor Dave Huizenga will provide an overview of EM's proposed fiscal year 2014 budget Thursday in the first of six briefings for the 19th annual U.S. House Nuclear Cleanup Caucus. Huizenga rolled out the $5.622 billion budget request earlier this month. The proposal, which requires approval by Congress, enables EM progress in all areas of the nuclear cleanup program while maintaining safety and compliance across the complex. The briefings are organized by Rep. Doc Hastings (R-Wash.), who chairs the bipartisan caucus. "These briefings provide valuable insight and help educate my colleagues

209

Energy Secretary Bodman Heads to West Virginia to Promote Energy Bill |  

Broader source: Energy.gov (indexed) [DOE]

Heads to West Virginia to Promote Energy Heads to West Virginia to Promote Energy Bill Energy Secretary Bodman Heads to West Virginia to Promote Energy Bill July 7, 2005 - 2:00pm Addthis Secretary Promotes Energizing America for Energy Security BELLE, WV - Secretary of Energy Samuel W. Bodman today traveled to West Virginia to urge the Congress to pass comprehensive energy legislation that is now before them. The bill reflects many of the principles of President Bush's national energy policy including the diversification of America's energy supply to include more alternative and renewable sources; encouraging energy efficiency and conservation; promoting more domestic production in environmentally responsible ways; and modernizing our electricity delivery system to minimize the risk of blackouts. President

210

103 Teams to Head to DOE's National Science Bowl in Washington, D.C. |  

Broader source: Energy.gov (indexed) [DOE]

3 Teams to Head to DOE's National Science Bowl in Washington, 3 Teams to Head to DOE's National Science Bowl in Washington, D.C. 103 Teams to Head to DOE's National Science Bowl in Washington, D.C. April 23, 2009 - 12:00am Addthis WASHINGTON, DC- Students from 67 high school teams and 36 middle school teams from across the nation will compete next weekend for championship titles in the U.S. Department of Energy's (DOE) National Science Bowl in Washington D.C. The National Science Bowl is the nation's largest academic competition of its kind and the only one sponsored by a federal agency. The National Finals will be held from May 2 through May 4. Each of the participating teams emerged from a regional competition to earn an all-expense-paid trip to the event. The participating teams represent 42 states, the District of Columbia, the U.S. Virgin Islands and Puerto

211

University at Albany Students Head Back to a School Powered with Renewable  

Broader source: Energy.gov (indexed) [DOE]

University at Albany Students Head Back to a School Powered with University at Albany Students Head Back to a School Powered with Renewable Energy University at Albany Students Head Back to a School Powered with Renewable Energy August 24, 2012 - 10:00am Addthis University at Albany's new student housing center, Liberty Terrace, is the school's first LEED Gold certified facility. The building has high-efficiency lighting and uses 45 percent less water than a comparable building. | Photo courtesy of the University at Albany. University at Albany's new student housing center, Liberty Terrace, is the school's first LEED Gold certified facility. The building has high-efficiency lighting and uses 45 percent less water than a comparable building. | Photo courtesy of the University at Albany. To help regulate Liberty Terrace's temperature, the school installed a geothermal heat pump, which is expected to reduce energy use by 50 percent. | Photo courtesy of the University at Albany.

212

Retiree Heads Back to Work, Helps Families Stay Afloat | Department of  

Broader source: Energy.gov (indexed) [DOE]

Retiree Heads Back to Work, Helps Families Stay Afloat Retiree Heads Back to Work, Helps Families Stay Afloat Retiree Heads Back to Work, Helps Families Stay Afloat November 10, 2009 - 7:17pm Addthis Mark Morris inspects a furnace. | File photo Mark Morris inspects a furnace. | File photo Joshua DeLung Getting laid off wasn't the only thing putting Americans in a pickle when the recession hit. Mark Morris of South Bend, Ind., is among many in the country who were already retired, but whose 401(k) account took a big hit when the stock market crashed. Mark had retired as a utility-company supervisor in mid-2007, but he lost 40 percent of his retirement money and knew he had to go back to work. So Mark made what he could by working part-time gigs until he heard about a job in September with a local community action agency where he would

213

Head model and electrical source imaging: A study of 38 epileptic patients  

Science Journals Connector (OSTI)

Abstract Electrical source imaging (ESI) aims at reconstructing the electrical brain activity from scalp EEG. When applied to interictal epileptiform discharges (IEDs), this technique is of great use for identifying the irritative zone in focal epilepsies. Inaccuracies in the modeling of electro-magnetic field propagation in the head (forward model) may strongly influence ESI and lead to mislocalization of IED generators. However, a systematic study on the influence of the selected head model on the localization precision of IED in a large number of patients with known focus localization has not yet been performed. We here present such a performance evaluation of different head models in a dataset of 38 epileptic patients who have undergone high-density scalp EEG, intracranial EEG and, for the majority, subsequent surgery. We compared ESI accuracy resulting from three head models: a Locally Spherical Model with Anatomical Constraints (LSMAC), a Boundary Element Model (BEM) and a Finite Element Model (FEM). All of them were computed from the individual MRI of the patient and ESI was performed on averaged IED. We found that all head models provided very similar source locations. In patients having a positive post-operative outcome, at least 74% of the source maxima were within the resection. The median distance from the source maximum to the nearest intracranial electrode showing IED was 13.2, 15.6 and 15.6mm for LSMAC, BEM and FEM, respectively. The study demonstrates that in clinical applications, the use of highly sophisticated and difficult to implement head models is not a crucial factor for an accurate ESI.

Gwnael Birot; Laurent Spinelli; Serge Vullimoz; Pierre Mgevand; Denis Brunet; Margitta Seeck; Christoph M. Michel

2014-01-01T23:59:59.000Z

214

Methods for characterizing magnetic footprints of perpendicular magnetic recording writer heads  

SciTech Connect (OSTI)

In this work, the magnetic footprints, along with some of its dynamic features in recording process, of perpendicular magnetic recording writer heads have been characterized by using three different techniques. Those techniques are the spin-stand stationary footprint technique, the spin-stand dynamic footprint technique, and the coherent writing technique combined with magnetic force microscope imaging method. The characteristics of those techniques have been compared to one another. It was found experimentally that the spin-stand stationary method could not precisely catch some peculiar recording dynamics of the write heads in certain conditions. The advantages and disadvantages among all those techniques are also examined and discussed in detail.

Li, Shaoping, E-mail: shaoping.li@wdc.com; Lin, Ed; George, Zach; Terrill, Dave; Mendez, H.; Santucci, J.; Yie, Derek [Western Digital Corp., 44100 Osgood Road, Fremont, California 94539 (United States)

2014-05-07T23:59:59.000Z

215

Epidemiology of Blunt Head Trauma in Children in U.S. Emergency Departments  

Science Journals Connector (OSTI)

To the Editor: Traumatic brain injury is the leading cause of death and disabilities in children older than 1 year of age. Detailed data about head trauma in children are needed to better understand the rates and unique age-related risks of injury. We examined the characteristics of children with blunt... Among more than 43,000 children treated in 25 emergency departments for blunt head trauma, traumatic brain injury was identified on CT scan in 7% of the patients. Falls were the most frequent injury mechanism for children under the age of 12 years.

2014-11-13T23:59:59.000Z

216

Internal combuston engine having separated cylinder head oil drains and crankcase ventilation passages  

DOE Patents [OSTI]

An internal combustion engine includes separated oil drain-back and crankcase ventilation passages. The oil drain-back passages extend from the cylinder head to a position below the top level of oil in the engine's crankcase. The crankcase ventilation passages extend from passages formed in the main bearing bulkheads from positions above the oil level in the crankcase and ultimately through the cylinder head. Oil dams surrounding the uppermost portions of the crankcase ventilation passages prevent oil from running downwardly through the crankcase ventilation passages.

Boggs, David Lee (Bloomfield Hills, MI); Baraszu, Daniel James (Plymouth, MI); Foulkes, David Mark (Erfstadt, DE); Gomes, Enio Goyannes (Ann Arbor, MI)

1998-01-01T23:59:59.000Z

217

Methyl mercaptan and dimethyl disulfide production from methionine by Proteus species detected by head-space gas-liquid chromatography.  

Science Journals Connector (OSTI)

...spectra with a reference library file (8). This identification...neither pure sam- ple nor library spectrum was available...comparison of head- space sampling with direct...Shigella Centre, Central Public Health Laboratory, London...chromatographic analysis of head-space gas of dilute aqueous...

N J Hayward; T H Jeavons; A J Nicholson; A G Thornton

1977-09-01T23:59:59.000Z

218

GNEP Coupled End-to-End Demonstration Project Head-End Processing and Tritium Removal Using Voloxidation  

E-Print Network [OSTI]

of operating parameters on removal of volatile fission and activation products. In addition, data fromGNEP Coupled End-to-End Demonstration Project Head-End Processing and Tritium Removal Using fuel per year). The head-end processing segment includes single-pin shearing, voloxidation to remove

Pennycook, Steve

219

POLICIES AND PROCESSES FOR THE APPROVAL OF OFFICE OF THE REGISTRAR Departmental Head Advisor Approved Petitions and Forms  

E-Print Network [OSTI]

Advisor Approved Petitions and Forms The College of Agricultural Sciences distributes approval for the following Office of the Registrar petitions and forms to the departmental head advisors, only. Please note that some forms contain sections requiring college head advisor approval, and some have time limitations

Tullos, Desiree

220

A SMALL PORTABLE DETECTOR HEAD USING MIS-CONTACTED CdTe FOR X-RAY SPECTROMETRY  

E-Print Network [OSTI]

339 A SMALL PORTABLE DETECTOR HEAD USING MIS-CONTACTED CdTe FOR X-RAY SPECTROMETRY P. EICHINGER for semiconductor radiation detectors is discussed. A versatile head consisting of a 2 mm thick, 10 mm diameter CdTe and its applica- tion to CdTe and CdS has already been published [2, 3], but because of the many

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Influence of tissue conductivity anisotropy on EEG/MEG field and return current computation in a realistic head model  

E-Print Network [OSTI]

brain using potential differences and/or magnetic fluxes measured non- invasively directly from the head in a realistic head model: A simulation and visualization study using high-resolution finite element modeling C 3493, Salt Lake City, UT 84112, USA c Max Planck Institute for Human Cognitive and Brain Sciences

Utah, University of

222

Measurements on 5:1 Scale Abrasive Water Jet Cutting Head Models  

E-Print Network [OSTI]

nozzle orifice s Isentropic (e.g. in w.jet.s) w.jet Water jet water Water Superscripts: * Symbol for non, an achievable accuracy also mentioned by Hashish in [7]. Improving the AWJ cutting process in a way that parts with precise accuracy of motion, a precisely manufactured tool (cutting head) and optimally set machining

223

PHENOLOGY AND BROWN-HEADED COWBIRD PARASITISM B.A., University of Colorado, 2003  

E-Print Network [OSTI]

PHENOLOGY AND BROWN-HEADED COWBIRD PARASITISM by TY TUFF B.A., University of Colorado, 2003 A thesis submitted to the Faculty of the Graduate School of the University of Colorado in partial, to evaluate the impact of parasitism on two local hosts in the Colorado Front Range: the primary host

Hammerton, James

224

Professor Veronica HoPe Hailey Dean & Head of the School of Management  

E-Print Network [OSTI]

Professor Veronica HoPe Hailey Dean & Head of the School of Management In attendance V eronica's research focuses on the link between Business Strategy, HR Strategy and Change Management. She is particularly interested in the relationship between organisational change and individual transition. She

Burton, Geoffrey R.

225

Magnetic Injection of Nanoparticles into Rat Inner Ears at a Human Head Working Distance  

E-Print Network [OSTI]

t57 1 Magnetic Injection of Nanoparticles into Rat Inner Ears at a Human Head Working Distance: azeem@umd.edu Due to the physics of magnetic fields and forces, any single magnet will always attract or pull-in magnetically-responsive particles. However, there are a variety of clinical needs where

Shapiro, Benjamin

226

OSU Council of Head Advisors Spring 2006 OSU Advisor-Advisee Responsibilities  

E-Print Network [OSTI]

OSU Council of Head Advisors ­ Spring 2006 OSU Advisor-Advisee Responsibilities As an advisee, you accurate and truthful information when being advised. Initiate a purposeful relationship with your advisor during advising sessions. Your advisor should: Develop a purposeful relationship with and be an advocate

Escher, Christine

227

Agricultural Biotechnology: What's all the fuss about? Marshall A. Martin,* Professor and Associate Head  

E-Print Network [OSTI]

Agricultural Biotechnology: What's all the fuss about? Marshall A. Martin,* Professor and Associate communities across this nation. Biotechnology is truly ubiquitous. Everyone is impacted directly or indirectly it mean for soci- ety? And, where are we headed? This article provides background on biotechnology

228

Leader Training Series Head + Heart + Hands + HealthNew Jersey 4-H  

E-Print Network [OSTI]

personnel are carefully selected for their ability and maturity. 4-H camp is licensed by the New JerseyLeader Training Series Head + Heart + Hands + HealthNew Jersey 4-H The Lindley G. Cook 4-H Camp has in Stokes State Forest, in the northwestern part of the state. Operated by Rutgers Cooperative Extension

Goodman, Robert M.

229

Melodic cues to meter 1 Running Head: MELODIC CUES TO METER  

E-Print Network [OSTI]

Melodic cues to meter 1 Running Head: MELODIC CUES TO METER The Role of Melodic and Temporal Cues in Perceiving Musical Meter Erin E. Hannon Cornell University Joel S. Snyder Cornell University Tuomas Eerola-569-4326 Tel: 905-828-5415 E-mail: eeh5@cornell.edu #12;Melodic cues to meter 2 Abstract A number of different

Ahmad, Sajjad

230

Running head: STEREOTYPE THREAT REDUCES MEMORY ERRORS Stereotype threat can reduce older adults' memory errors  

E-Print Network [OSTI]

Running head: STEREOTYPE THREAT REDUCES MEMORY ERRORS Stereotype threat can reduce older adults, 90089-0191. Phone: 213-740-6772. Email: barbersa@usc.edu #12;STEREOTYPE THREAT REDUCES MEMORY ERRORS 2 Abstract (144 words) Stereotype threat often incurs the cost of reducing the amount of information

Mather, Mara

231

Stereotype threat in sports 1 Running head: STEREOTYPE THREAT AND ACHIEVEMENT GOALS IN SPORTS  

E-Print Network [OSTI]

Stereotype threat in sports 1 Running head: STEREOTYPE THREAT AND ACHIEVEMENT GOALS IN SPORTS Do Achievement Goals Mediate Stereotype Threat? An Investigation on Females' Soccer Performance Aïna Chalabaev Psycholoy 30 (2008) 143-158" #12;Stereotype threat in sports 2 Abstract This research investigated

Paris-Sud XI, Université de

232

Effective scattering coefficient of the cerebral spinal fluid in adult head models for diffuse optical imaging  

E-Print Network [OSTI]

correct radiative transport equation (RTE); however, it is commonly assumed that scattering lengths must. Boas An efficient computation of the time-dependent forward solution for photon transport in a head of the brain. The diffusion approximation to photon transport is much faster to simulate than the physically

233

SAFETY RESPONSIBILITIES Vice Chancellors, Deans, Directors, and Department Heads shall implement the safety  

E-Print Network [OSTI]

SAFETY RESPONSIBILITIES Vice Chancellors, Deans, Directors, and Department Heads shall implement the safety program in their areas of administrative responsibility and are responsible for the safety for the safety of the personnel under their supervision and will: · Train employees in the safe use of equipment

234

Running Head: Mental Health and Welfare Reform MENTAL HEALTH PROBLEMS AMONG SINGLE MOTHERS  

E-Print Network [OSTI]

Running Head: Mental Health and Welfare Reform MENTAL HEALTH PROBLEMS AMONG SINGLE MOTHERS Pennsylvania State University #12;Mental Health and Welfare Reform/2 MENTAL HEALTH PROBLEMS AMONG SINGLE outcomes. #12;Mental Health and Welfare Reform/3 INTRODUCTION The Personal Responsibility and Work

Shyy, Wei

235

Independent Component Analysis For EEG Source Localization In Realistic Head Models  

E-Print Network [OSTI]

1 Independent Component Analysis For EEG Source Localization In Realistic Head Models Leonid Zhukov Abstract--- A pervasive problem in neuroscience is determining which regions of the brain are active, given within the brain from electroencephalo­ graphic (EEG) recordings is an ill­posed problem. Specifi­ cally

Utah, University of

236

Independent Component Analysis For EEG Source Localization In Realistic Head Models  

E-Print Network [OSTI]

1 Independent Component Analysis For EEG Source Localization In Realistic Head Models Leonid Zhukov Abstract-- A pervasive problem in neuroscience is determining which regions of the brain are active, given within the brain from electroencephalo- graphic (EEG) recordings is an ill-posed problem. Specifi- cally

Utah, University of

237

Differential transcriptome profiles of heads from foragers: comparison between Apis mellifera ligustica and Apis  

E-Print Network [OSTI]

Differential transcriptome profiles of heads from foragers: comparison between Apis mellifera ligustica and Apis cerana cerana Zhiguo LI 1 , Fang LIU 1 , Wenfeng LI 1 , Shaowu ZHANG 1,2 , Dong NIU 1 in ecology and biology between Apis cerana cerana and Apis mellifera ligustica, we first used the Illumina

238

Brain mass estimation by head circumference and body mass methods in neonatal glycaemic modelling and control  

Science Journals Connector (OSTI)

AbstractIntroduction Hyperglycaemia is a common complication of stress and prematurity in extremely low-birth-weight infants. Model-based insulin therapy protocols have the ability to safely improve glycaemic control for this group. Estimating non-insulin-mediated brain glucose uptake by the central nervous system in these models is typically done using population-based body weight models, which may not be ideal. Method A head circumference-based model that separately treats small-for-gestational-age (SGA) and appropriate-for-gestational-age (AGA) infants is compared to a body weight model in a retrospective analysis of 48 patients with a median birth weight of 750g and median gestational age of 25 weeks. Estimated brain mass, model-based insulin sensitivity (SI) profiles, and projected glycaemic control outcomes are investigated. SGA infants (5) are also analyzed as a separate cohort. Results Across the entire cohort, estimated brain mass deviated by a median 10% between models, with a per-patient median difference in SI of 3.5%. For the SGA group, brain mass deviation was 42%, and per-patient SI deviation 13.7%. In virtual trials, 8793% of recommended insulin rates were equal or slightly reduced (?head circumference method, while glycaemic control outcomes showed little change. Conclusion The results suggest that body weight methods are not as accurate as head circumference methods. Head circumference-based estimates may offer improved modelling accuracy and a small reduction in insulin administration, particularly for SGA infants.

Cameron Allan Gunn; Jennifer L. Dickson; Christopher G. Pretty; Jane M. Alsweiler; Adrienne Lynn; Geoffrey M. Shaw; J. Geoffrey Chase

2014-01-01T23:59:59.000Z

239

M.K. Johnson et al. 1 Running Head: COGNITIVE NEUROSCIENCE OF MEMORY  

E-Print Network [OSTI]

M.K. Johnson et al. 1 Running Head: COGNITIVE NEUROSCIENCE OF MEMORY In Press. In R. F. Belli (Ed on Motivation, Vol. 58. The Cognitive Neuroscience of True and False Memories Marcia K. Johnson, Carol L. Raye, Karen J. Mitchell, & Elizabeth Ankudowich Yale University Send correspondence to: Marcia K. Johnson

Johnson, Marcia K.

240

Insights into Head Related Transfer Function: Spatial Dimensionality and Continuous Representation  

E-Print Network [OSTI]

measurements are discrete by necessity, and secondly there is no standard HRTF spatial sam- pling theoryInsights into Head Related Transfer Function: Spatial Dimensionality and Continuous Representation, The Australian National University, Canberra ACT 0200, Australiaa) and Ramani Duraiswami Perceptual Interfaces

Abhayapala, Thushara D.

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Insights into head-related transfer function: Spatial dimensionality and continuous representation  

E-Print Network [OSTI]

by necessity, and second there is no standard HRTF spatial sampling theory to make HRTF measurement practicalInsights into head-related transfer function: Spatial dimensionality and continuous representation, The Australian National University, Canberra ACT 0200, Australia Ramani Duraiswami Perceptual Interfaces

Zhang, Wen

242

To: Officers, Deans, Department Heads, and Department Administrators From: Diane Devlin, Purchasing Director  

E-Print Network [OSTI]

To: Officers, Deans, Department Heads, and Department Administrators From: Diane Devlin, Purchasing BY THE PURCHASING OFFICE NO LATER THAN FRIDAY, MAY 16, 2014. Certain commodity items may require longer lead times for such items should be received by the purchasing office no later than MONDAY, MAY 5, 2014. ITEMS OR SERVICES

Dennett, Daniel

243

Running Head: PHENOMENOLOGY OF FEELINGS 1 Toward a Phenomenology of Feelings  

E-Print Network [OSTI]

Running Head: PHENOMENOLOGY OF FEELINGS 1 Toward a Phenomenology of Feelings Christopher L. Heavey 455030, Las Vegas, NV 89154- 5030. E-mail: chris.heavey@unlv.edu #12;PHENOMENOLOGY OF FEELINGS 2 Abstract present a preliminary phenomenology of feelings. We begin by observing that often feelings do occur

Ahmad, Sajjad

244

Event Understanding and Memory 1 Running head: Event Understanding and Memory  

E-Print Network [OSTI]

Event Understanding and Memory 1 Running head: Event Understanding and Memory Event Understanding and Memory in Healthy Aging and Dementia of the Alzheimer Type Jeffrey M. Zacks, Nicole K. Speer, Jean M Understanding and Memory 2 Abstract Segmenting ongoing activity into events is important for later memory

Zacks, Jeffrey M.

245

Working Memory and Schizophrenia 1 Running head: working memory and schizophrenia  

E-Print Network [OSTI]

Working Memory and Schizophrenia 1 Running head: working memory and schizophrenia Working memory.Park@vanderbilt.edu or Junghee.Lee@vanderbilt.edu #12;Working Memory and Schizophrenia 2 Abstract Working memory (WM) deficit and/or early part of maintenance may be problematic. #12;Working Memory and Schizophrenia 3

Park, Sohee

246

Improvement of the effectiveness of spillway operation of high-head hydroelectric stations  

SciTech Connect (OSTI)

This article formulates the hydraulics and energetics involved in the aerated two-phase flow of water over and down the spillway of a high-head hydroelectric power plant into the receiving pools and constructs a flow model describing kinetic energy transfer and losses and air bubble compression forces for different configurations and inclinations of the spillway surface for purposes of spillway design.

Khlopenkov, P.R.

1987-10-01T23:59:59.000Z

247

A new design criterion based on pressure testing of torispherical heads  

SciTech Connect (OSTI)

Two vessels with torispherical heads were pressurized to destruction at the Praxair Tonawanda facility on September 12--13, 1994. The objective was to determine pressures at which observable or measurable indications of failure could be detected. Plastic limit pressures for the two heads were calculated at 190 and 240 psi, respectively. For Vessel 1, the only observable action was a slow formation of some waviness of the knuckle profile at approximately 600 psi. It lost pressure at 700 psi when a crack developed at a nozzle weld at the bottom of the shell. For Vessel 2, no indication of any sign of failure was observed until it burst at a pressure of 1,080 psi by a ductile fracture along the longitudinal weld of the shell. The main conclusion is that there is a problem in the application of the double elastic slope collapse criterion to torispherical heads. It was determined that when using this criterion a collapse pressure signaling excessive deformation cannot be determined with any certainty. Furthermore, the test data do not show anything at any of the calculated collapse pressures that suggests excessive deformation. Thus, the collapse pressures for torispherical heads cannot be confirmed by test. This leads to the inconsistency that if the collapse load is divided by a safety factor, say 1.5, to obtain an allowable pressure, the actual safety margin of the design is not known and may not be 1.5. For a material with sufficient ductility, the use of an estimated burst pressure appears preferable. A design criterion based on the membrane stress at the crown of a torispherical head reaching the ultimate tensile strength is proposed, which is simple, can be supported by theoretical arguments, and is shown to be conservative by current test results as well as by those of two previous test programs.

Kalnins, A. [Lehigh Univ., Bethlehem, PA (United States). Dept. of Mechanical Engineering and Mechanics; Rana, M.D. [Praxair, Inc., Tonawanda, NY (United States). Research and Development Dept.

1996-08-01T23:59:59.000Z

248

Frequency of intracranial injury in cadavers with head trauma with and without scalp injury in Tehran  

Science Journals Connector (OSTI)

Abstract Traumatic brain injury is a major cause of morbidity, disability and mortality in patients with head injury. The aim of this study was to elucidate the frequency of intracranial injury in cadavers with head trauma with and without scalp injury in Tehran. In this analytical cross-sectional study, we investigated 187 cadavers who died due to head trauma in motor vehicle accident or after falling in Tehran from November 2013 to February 2014. Age, sex, mechanism of trauma, scalp injury, sub-scalp bruising, skull fracture, hemorrhage including subdural hemorrhage (SDH), epidural hemorrhage (EDH), subarachnoid hemorrhage (SAH) and contusion were recorded from examination and autopsy. One hundred and eighty seven cadavers (165 (88.2%) male and 22 (11.8%) female) with head injury with the mean age of 36.14 years (SD=15) were recruited in this study. Mechanism of trauma was motor vehicle accident in 147 (78.6%) cadavers and falling in 40 (21.4%) cadavers. One hundred and fifty eight (84.5%) had SDH, 44 (23.5%) had EDH, 162 (86.6%) had SAH and 139 (74.3%) had contusion. Hemorrhage was seen in 132 (93%) cadavers who had scalp injury and 36 (80%) cadavers who did not have scalp injury (p=0.01). Overall, 168 (89.8%) cadavers had hemorrhage and 139 (74.3%) had contusion. There was a significant correlation between intracranial injuries and scalp injury (phead trauma, complete examination should be performed but absence of findings in examination cannot exclude intracranial injury.

Kamran Aghakhani; Mansoure Heidari; Vahid Yousefinejad; Arash Okazi

2014-01-01T23:59:59.000Z

249

Early Head Growth in Infants at Risk ofAutism: A Baby Siblings Research Consortium Study  

Science Journals Connector (OSTI)

Objective Although early brain overgrowth is frequently reported in autism spectrum disorder (ASD), the relationship between ASD and head circumference (HC) is less clear, with inconsistent findings from longitudinal studies that include community controls. Our aim was to examine whether head growth in the first 3 years differed between children with ASD from a high-risk (HR) sample of infant siblings of children with ASD (by definition, multiplex), HR siblings not diagnosed with ASD, and low-risk (LR) controls. Method Participants included 442 HR and 253 LR infants from 12 sites of the international Baby Siblings Research Consortium. Longitudinal HC data were obtained prospectively, supplemented by growth records. Random effects nonlinear growth models were used to compare HC in HR infants and LR infants. Additional comparisons were conducted with the HR group stratified by diagnostic status at age 3: ASD (n= 77), developmental delay (DD; n= 32), and typical development (TD; n= 333). Nonlinear growth models were also developed for height to assess general overgrowth associated with ASD. Results There was no overall difference in head circumference growth over the first 3 years between HR and LR infants, although secondary analyses suggested possible increased total growth in HR infants, reflected by the model asymptote. Analyses stratifying the HR group by 3-year outcomes did not detect differences in head growth or height between HR infants who developed ASD and those who did not, nor betweeninfants with ASD and LR controls. Conclusion Head growth was uninformative asan ASD risk marker within this HR cohort.

Lonnie Zwaigenbaum; Gregory S. Young; Wendy L. Stone; Karen Dobkins; Sally Ozonoff; Jessica Brian; Susan E. Bryson; Leslie J. Carver; Ted Hutman; Jana M. Iverson; Rebecca J. Landa; Daniel Messinger

2014-01-01T23:59:59.000Z

250

Permethrin and malathion resistance in head lice: Results of exvivo and molecular assays  

Science Journals Connector (OSTI)

Background Treatment of head lice infestation relies on the application of topical insecticides. Overuse of these products has led to the emergence of resistance to pyrethroids and malathion worldwide. Permethrin resistance in head lice is mostly conferred by the knockdown resistance (kdr) trait. Objective To evaluate the occurrence of permethrin- and malathion-resistant head lice in Paris. Methods A prospective survey was conducted in 74 elementary schools. Live lice collected on schoolchildren were randomly selected and submitted to exvivo bioassays or underwent individual DNA extraction. A fragment of kdr-like gene was amplified and compared with wild-type sequences. Results Live head lice were detected in 574 children. Exvivo assays showed no surviving lice after a 1-hour contact with malathion while most lice died after a 1-hour exposure to permethrin and piperonyl butoxide (85.7%, 95% confidence interval [CI]: 83.9-87.5). Among the 670 lice with workable DNA sequences, 661 lice (98.7%, 95% CI 97.7-99.3) had homozygous kdr mutations. Limitations The findings of this large-scale survey of the occurrence of insecticide-resistant head lice indicated a major insecticide pressure in the study population, but it was not sufficient to draw conclusions about other populations. The presence of T917I-L920F mutations in kdr gene may not correlate with treatment failure in prospective studies. Conclusion The high occurrence of kdr mutant allele suggests that insecticide resistance was already strongly established in the studied population. This finding must be interpreted with caution as it may not be predictive of treatment failure.

Sophie Bouvresse; Zohra Berdjane; Rmy Durand; Julie Bouscaillou; Arezki Izri; Olivier Chosidow

2012-01-01T23:59:59.000Z

251

Western Pond Turtle Head-starting and Reintroduction, 2005-2006 Annual Report.  

SciTech Connect (OSTI)

This report covers the results of the western pond turtle head-starting and reintroduction project for the period of October 2005-September 2006. Wild hatchling western pond turtles from the Columbia River Gorge were reared at the Woodland Park and Oregon zoos in 2005 and 2006 as part of the recovery effort for this Washington State endangered species. The objective of the program is to reduce losses to introduced predators like bullfrogs and largemouth bass by raising the hatchlings to a size where they are too large to be eaten by most of these predators. Twenty-six turtles were placed at the Woodland Park Zoo and 62 at the Oregon Zoo in fall 2005. These turtles joined two that were held back from release in summer 2005 due to their small size. All 90 juvenile turtles were released at three sites in the Columbia Gorge in 2006. Twenty-eight juvenile turtles were released at the Klickitat ponds, 22 at the Klickitat lake, 21 at the Skamania site, and 19 at Pierce National Wildlife Refuge (NWR). This brought the total number of head-start turtles released since 1991 to 944; 285 for the Klickitat ponds, 158 for the Klickitat lake, 227 for the Skamania pond complex, and 274 at Pierce NWR. In 2006, 20 females from the Klickitat population were equipped with transmitters and monitored for nesting activity. Fifteen nests were located and protected; these produced 55 hatchlings. The hatchlings were collected in September and transported to the Oregon and Woodland Park zoos for rearing in the head-start program. One wild hatchling captured in spring 2006 was placed in the head-start program to attain more growth in captivity. During the 2006 field season trapping effort, 414 western pond turtles were captured in the Columbia Gorge, including 374 previously head-started turtles. These recaptures, together with confirmed nesting by head-start females and visual resightings, indicate the program is succeeding in boosting juvenile recruitment to increase the populations. Records were also collected on 179 individual painted turtles captured in 2006 during trapping efforts at Pierce NWR, to gather baseline information on this native population.

Van Leuven, Susan; Allen, Harriet; Slavens, Kate (Washington Department of Fish and Wildlife, Wildlife Management Program, Olympia, WA)

2006-11-01T23:59:59.000Z

252

Western Pond Turtle Head-starting and Reintroduction; 2003-2004 Annual Report.  

SciTech Connect (OSTI)

This report covers the results of the western pond turtle head-starting and reintroduction project for the period of October 2003-September 2004. Wild hatchling western pond turtles from the Columbia River Gorge were reared at the Woodland Park and Oregon Zoos in 2003 and 2004 as part of the recovery effort for this Washington State endangered species. The objective of the program is to reduce losses to introduced predators like bullfrogs and largemouth bass by raising the hatchlings to a size where they are too large to be eaten by most of these predators. Sixty-nine turtles were over-wintered at the Woodland Park Zoo and 69 at the Oregon Zoo. Of these, 136 head-started juvenile turtles were released at three sites in the Columbia Gorge in 2004. Two were held back to attain more growth in captivity. Thirty-four were released at the Klickitat ponds, 19 at the Klickitat lake, 21 at the Skamania site, and 62 at Pierce National Wildlife Refuge (NWR). This brought the total number of head-start turtles released since 1991 to 246 for the Klickitat ponds, 114 for the Klickitat lake, 167 for the Skamania pond complex, and 250 at Pierce NWR. In 2004, 32 females from the two Columbia Gorge populations were equipped with transmitters and monitored for nesting activity. Twenty-one of the females nested and produced 85 hatchlings. The hatchlings were collected in September and October and transported to the Woodland Park and Oregon zoos for rearing in the head-start program. Data collection for a four-year telemetry study of survival and habitat use by juvenile western pond turtles at Pierce NWR concluded in 2004. Radio transmitters on study animals were replaced as needed until all replacements were in service; afterward, the turtles were monitored until their transmitters failed. The corps of study turtles ranged from 39 in August 2003 to 2 turtles at the end of August 2004. These turtles showed the same seasonal pattern of movements between summer water and upland winter habitats observed in previous years. During the 2004 field season trapping effort, 345 western pond turtles were captured in the Columbia Gorge, including 297 previously head-started turtles. These recaptures, together with confirmed nesting by head-start females and visual resightings, indicate the program is succeeding in boosting juvenile recruitment to increase the populations. Records were also collected on 224 individual painted turtles captured in 2004 during trapping efforts at Pierce NWR, to gather baseline information on this native population. Bonneville Power Administration (BPA) funded approximately 60% of program activities in the Columbia River Gorge from October 2003 through September 2004.

Van Leuven, Susan; Allen, Harriet; Slavin, Kate (Washington Department of Fish and Wildlife, Wildlife Management Program, Olympia, WA)

2004-09-01T23:59:59.000Z

253

Western Pond Turtle Head-starting and Reintroduction; 2004-2005 Annual Report.  

SciTech Connect (OSTI)

This report covers the results of the western pond turtle head-starting and reintroduction project for the period of October 2004-September 2005. Wild hatchling western pond turtles from the Columbia River Gorge were reared at the Woodland Park and Oregon Zoos in 2004 and 2005 as part of the recovery effort for this Washington State endangered species. The objective of the program is to reduce losses to introduced predators like bullfrogs and largemouth bass by raising the hatchlings to a size where they are too large to be eaten by most of these predators. Thirty-five turtles were placed at the Woodland Park Zoo and 53 at the Oregon Zoo. Of these, 77 head-started juvenile turtles were released at three sites in the Columbia Gorge in 2005. Four were held back to attain more growth in captivity. Eleven were released at the Klickitat ponds, 22 at the Klickitat lake, 39 at the Skamania site, and 5 at Pierce National Wildlife Refuge (NWR). This brought the total number of head-start turtles released since 1991 to 257 for the Klickitat ponds, 136 for the Klickitat lake, 206 for the Skamania pond complex, and 255 at Pierce NWR. In 2005, 34 females from the two Columbia Gorge populations were equipped with transmitters and monitored for nesting activity. Twenty-four nests were located and protected; these produced 90 hatchlings. The hatchlings were collected in September and transported to the Oregon and Woodland Park zoos for rearing in the head-start program. During the 2005 field season trapping effort, 486 western pond turtles were captured in the Columbia Gorge, including 430 previously head-started turtles. These recaptures, together with confirmed nesting by head-start females and visual resightings, indicate the program is succeeding in boosting juvenile recruitment to increase the populations. Records were also collected on 216 individual painted turtles captured in 2005 during trapping efforts at Pierce NWR, to gather baseline information on this native population. Bonneville Power Administration (BPA) funded approximately 75% of program activities in the Columbia River Gorge from October 2004 through September 2005.

Van Leuven, Susan; Allen, Harriet; Slavin, Kate (Washington Department of Fish and Wildlife, Wildlife Management Program, Olympia, WA)

2005-09-01T23:59:59.000Z

254

Distinct Subpopulations of Head and Neck Cancer Cells with Different Levels of Intracellular Reactive Oxygen Species Exhibit Diverse Stemness, Proliferation, and Chemosensitivity  

Science Journals Connector (OSTI)

...outcome in locally advanced squamous cell head-neck cancer.Br J Cancer 2012;106...of antrodia cinnamomea mycelia targeting head and neck cancer initiating cells through...Haddad RI Shin DM.Recent advances in head and neck cancer.N Engl J Med 2008;359...

Ching-Wen Chang; Yu-Syuan Chen; Shiu-Huey Chou; Chia-Li Han; Yu-Ju Chen; Cheng-Chieh Yang; Chih-Yang Huang; Jeng-Fan Lo

2014-11-01T23:59:59.000Z

255

Impact-absorbing Materials in Reducing Brain Vibration Caused by Ball-to-head Impact in Soccer  

Science Journals Connector (OSTI)

Abstract There has been a long debate among researchers on whether soccer heading is capable of causing brain trauma. A recent study suggests that headings exceeding a threshold level of 855 to 1,550 per year, results in microstructural abnormalities in the brain's white matter. This shows that brain trauma is caused by cumulative effect of repetitive headings. The use of protective headgear is one of the suggested preventive measures to protect the brain especially for younger players. Researchers have tested several commercial headgears and found that they are only effective in head-to-head impact, but ineffective in attenuating impact caused by heading. This is due to the fact that soccer ball is compliant in nature relative to the head. The aim of this study is to investigate materials that can be utilised to minimise the acceleration of the brain caused by soccer heading. A vertical drop ball test was conducted on an instrumented dummy skull. The inner cavity of the skull is filled with ultrasound gel that represents the brain. Six impact-absorbing materials were tested to determine the most effective material that reduces the acceleration of the brain substitute. The speed of the ball before and after impact as well as impact duration were measured using high-speed camera. Coefficient of restitution was calculated to ensure the material is not only capable of reducing the brain acceleration, but also maintains heading performance. It was found that polymer kneepad foam is the most effective material that minimises the acceleration of brain substitute whilst maintaining the speed of the ball after impact.

Zahari Taha; Mohd Hasnun Arif Hassan; Iskandar Hasanuddin; Mohd Azri Aris; Anwar P.P. Abdul Majeed

2014-01-01T23:59:59.000Z

256

Questions and Answers - How many atoms are in the human head?  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Is there a way to tell how manyatoms are in an object? Is there a way to tell how many<br>atoms are in an object? Previous Question (Is there a way to tell how many atoms are in an object?) Questions and Answers Main Index Next Question (How many atoms are in the human body?) How many atoms arein the human body? How many atoms are in the human head? We can calculate the number of atoms in your head if we know the density and a constant called Avogadro's number. This is really just an estimate, but it's going to be a good one. The equation is fairly simple. The number of atoms of ANY substance in a volume is: # of atoms = N * (density) * volume / (Molecular Weight). N is a constant called Avogadro's number and its equal to 6.022*1023 atoms/mole. It can also be molecules per mole. In the above formula density

257

Supplement 21, Part 6, Parasite-Subject Catalogue: Subject Headings and Treatment  

E-Print Network [OSTI]

., 1973 b Entamoeba histolytica, effects of estrogen on hepatic amoebic abscess, hamsters j possibly responsible for lower frequency of abscess in women Abscess Tsai, S.H., 1973 a human hepatic amoebiasis, review of treatments used over 18 years...index Section UNITED STATES DEPARTMENT OP AGRICULTURE CATALOGUE OP MEDICAL AND VETERINARY ZOOLOGY SUPPLEMENT 21, PART 6 PARASITE-SUBJECT CATALOGUE : SUBJECT HEADINGS AND TREATMENT RECEIVED ! IPP?PV MAY 02 1963 IME UNIVERSITY 0? TEXAS HEAI...

Hood, Martha W.; Rayburn, Jane D.

1976-01-01T23:59:59.000Z

258

Supplement 19, Part 6, Parasite-Subject Catalogue: Subject Headings And Treatment  

E-Print Network [OSTI]

UNITED STATES DEPARTMENT OF AGRICULTURE i INDEX-CATALOGUE OF MEDICAL AND VETERINARY ZOOLOGY SUPPLEMENT 19, PART 6 PARASITE-SUBJECT CATALOGUE: SUBJECT HEADINGS AND TREATMENT By MARTHA L. WALKER, Zoologist JANE D. RAYBURN, Technical Information... Specialist JUDITH HUMPHREY SHAW, Zoologist MARGIE D. KIRBY, Technical Information Specialist SHIRLEY J. EDWARDS, Technical Information Specialist ANIMAL PARASITOLOGY INSTITUTE AGRICULTURAL RESEARCH SERVICE Issued March 1974 U.S. GOVERNMENT PRINTING...

Walker, Martha L.; Rayburn, Jane D.; Shaw, Judith H.; Kirby, Margie D.; Edwards, Shirley J.

1974-01-01T23:59:59.000Z

259

Effects of Parent Expectations and Involvement on the School Readiness of Children in Head Start  

E-Print Network [OSTI]

of children enrolled in Head Start. The study examined how these iv parent variables were related to children?s school readiness, and differences between ethnic groups, gender groups, and level of risk. The study tested a model whereby the effect... experimental measures in addition to questionnaires adapted from standardized measures to assess parent behaviors. Standardized measures were administered to children to assess school readiness. Demographic information and level of risk were gathered using...

Cook, Krystal Tisha'

2010-10-12T23:59:59.000Z

260

Head-end process for the reprocessing of HTGR spent fuel  

SciTech Connect (OSTI)

The reprocessing of HTGR spent fuels is in favor of the sustainable development of nuclear energy to realize the maximal use of nuclear resource and the minimum disposal of nuclear waste. The head-end of HTGR spent fuels reprocessing is different from that of the LWR spent fuels reprocessing because of the difference of spent fuel structure. The dismantling of the graphite spent fuel element and the highly effective dissolution of fuel kernel is the most difficult process in the head end of the reprocessing. Recently, some work on the head-end has been done in China. First, the electrochemical method with nitrate salt as electrolyte was studied to disintegrate the graphite matrix from HTGR fuel elements and release the coated fuel particles, to provide an option for the head-end technology of reprocessing. The results show that the graphite matrix can be effectively separated from the coated particle without any damage to the SiC layer. Secondly, the microwave-assisted heating was applied to dissolve the UO{sub 2} kernel from the crashed coated fuel particles. The ceramic UO{sub 2} as the solute has a good ability to absorb the microwave energy. The results of UO{sub 2} kernel dissolution from crushed coated particles by microwave heating show that the total dissolution percentage of UO{sub 2} is more than 99.99% after 3 times cross-flow dissolution with the following parameters: 8 mol/L HNO{sub 3}, temperature 100 Celsius degrees, initial ratio of solid to liquid 1.2 g/ml. (authors)

Chen, J.; Wen, M. [Institute of Nuclear and New Energy Technology, Tsinghua University, Bejing 10084 (China)

2013-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Thin film hydrodynamic lubrication of flying heads in magnetic disk storages  

Science Journals Connector (OSTI)

Typical hydrodynamic lubrication problems commonly encountered in the ultrathin spacing between a computer flying head and a magnetic disk are reviewed. In magnetic disk storages, minimizing the spacing between the head and disk is essential to promote the largest possible increase in magnetic bit density. In the small (nearly 1.0 ?m) spacing that has recently been attained, the rarefaction effects owing to the molecular mean free path become dominant. Specifically, in this paper the three governing equations resulting from the first- and second-order slip-flow models and from the linearized Boltzmann equation are compared. Next, some numerical approaches to eliminating the instability in pressure distribution in the high bearing number region are described. Surface roughness effects are also a principal concern in thin spacing. A mixed lubrication model which enables the analysis of the start/stop operation and the average film thickness theory for one- and two-dimensional roughnesses is summarized. Finally, from the viewpoint of practical head design, the slider dynamic characteristics and related slider design factors are discussed.

Yasunaga Mitsuya

1987-01-01T23:59:59.000Z

262

Investigation of the effect of shock, vibration, surface texture and surface pattern on the dynamics of the head disk interface  

E-Print Network [OSTI]

Figure 7.8: Flying height as a function of disk speed forFigure 7.9: Flying height as a function of disk radius fortextured Flying Head Slider Bearings in Magnetic Hard Disk

Murthy, Aravind N.

2007-01-01T23:59:59.000Z

263

Thin film gas lubrication characteristics of flying head slider bearings over patterned media in hard disk drives  

Science Journals Connector (OSTI)

...? This paper describes the effects of moving patterned disk surfaces on thin film gas lubrication characteristics for flying head slider bearings in magnetic hard disk drives. In order to perform the most real...

N. Tagawa; A. Mori

2003-05-01T23:59:59.000Z

264

Western Pond Turtle Head-starting and Reintroduction; 2002-2003 Progress Report.  

SciTech Connect (OSTI)

This report covers the results of the western pond turtle head-starting and reintroduction project for the period of June 2002-September 2003. Wild hatchling western pond turtles from the Columbia River Gorge were reared at the Woodland Park and Oregon Zoos in 2002 and 2003 as part of the recovery effort for this Washington State endangered species. The objective of the program is to reduce losses to introduced predators like bullfrogs and largemouth bass by raising the hatchlings to a size where they are too large to be eaten by most of these predators. In 2002, 27 females from the two Columbia Gorge populations were equipped with transmitters and monitored until they nested. Four more females carrying old transmitters were also monitored; only one of these transmitters lasted through the nesting season. In 2003, 30 females were monitored. Twenty-three of the females monitored in 2002 nested and produced 84 hatchlings. The hatchlings were collected in fall 2002 and reared in captivity at the Woodland Park and Oregon zoos in the head-start program. Twenty-seven of the turtles monitored in 2003 nested. Six of the turtles nested twice, producing a total of 33 nests. The nests will be checked in September and October 2003 for hatchlings. Of 121 head-started juvenile western pond turtles collected in the Columbia Gorge during the 2001 nesting season, 119 were released at three sites in the Columbia Gorge in 2002, and 2 held over for additional growth. Of 86 turtles reared in the head-start program at the Woodland Park and Oregon Zoos fall 2002 through summer 2003, 67 were released at sites in the Columbia Gorge in summer of 2003, and 15 held over for more growth. Fifty-nine juveniles were released at Pierce National Wildlife Refuge in July 2002, and 51 released there in July 2003. Sixteen of those released in 2002 and 16 released in 2003 were instrumented with radio transmitters and monitored for varying amounts of time for survival and habitat use between the time of release and August 2003, together with juveniles from the 2001 release which were monitored from June 2001 through August 2003, and juveniles from the 2000 release which were monitored from August 2000 through August 2003. The number of functioning transmitters varied due to transmitter failures and detachments, and availability of replacement transmitters, as well as opportunities to recapture turtles. By August 15, 2003, a total of 39 turtles were being monitored: 6 from the 2000 release, 8 from the 2001 release, 10 from the 2002 release, and 15 from the 2003 release. During the 2002 field season trapping effort, 280 turtles were captured in the Columbia Gorge, including 236 previously head-started turtles. During the 2003 trapping season, 349 turtles were captured in the Columbia Gorge; 304 of these had been head-started. These recaptures, together with confirmed nesting by head-start females and visual re-sightings, indicate the program is succeeding in boosting juvenile recruitment to increase the populations. Records were also collected on 160 individual painted turtles captured in 2002 and 189 painted turtles captured in 2003 during trapping efforts at Pierce NWR, to gather baseline information on this native population. Eight female painted turtles were monitored by telemetry during the 2002 nesting season; 4 nests were recorded for these animals, plus 35 nests located incidentally. Preferred habitat for nesting was identified based on the telemetry results, to be considered in anticipating future turtle habitat needs and in management planning at Pierce NWR. Bonneville Power Administration (BPA) funding supported activities in the Columbia River Gorge from June 2002 through September 2003.

Van Leuven, Susan; Allen, Harriet; Slavin, Kate (Washington Department of Fish and Wildlife, Wildlife Management Program, Olympia, WA)

2004-02-01T23:59:59.000Z

265

Effects of head-up tilt on mean arterial pressure, heart rate, and regional cardiac output distribution in aging rats  

E-Print Network [OSTI]

Approved by: Chair of Committee, Michael Delp Committee Members, Robert Armstrong Judy Muller-Delp Janet r Head of Department, Steve M. Dorman December 2005 Major Subject: Kinesiology iii ABSTRACT Effects of Head-up Tilt... Armstrong, and Dr. Janet Parker for their patience, guidance, and support thoughout the course of this research. vi TABLE OF CONTENTS Page ABSTRACT????????????????????????.. iii ACKNOWLEDGEMENTS??????????????????.. v TABLE OF CONTENTS...

Ramsey, Michael Wiechmann

2006-04-12T23:59:59.000Z

266

Heading 1  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

and foster the professional growth and advancements through individual development planning for all individuals in the Department Federal workforce to ensure our employees...

267

Heading 1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

for Small Modular Reactors PI: Yi-Lung Mo: University of Houston Collaborators: Yu Tang: Argonne National Laboratory Ken Barry: Electrical Power Research Institute K.C. Chang:...

268

HEADING FRONTMATTER  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

R.F.; Jacobson, J.J.; and Searcy, E.M. (2012). Dynamic Analysis of Policy Drivers for Bioenergy Commodity Markets. Energy Policy, accepted for publication. 3. Piet, S.J.;...

269

Head case  

Science Journals Connector (OSTI)

... to common birth defects such as cleft palate. And, says Andrew Wilkie of the John Radcliffe Hospital, Oxford, UK, they provide "another little piece of the immensely complicated ...

John Whitfield

2000-03-28T23:59:59.000Z

270

HEADING FRONTMATTER  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Patents Files; R.D. Boardman, R.A. Carrington; "Method and Apparatus for Oil Shale Pollutant SorptionNOx Reburning, Multi-pollutant Control," June 10, 2008. 2. U.S....

271

HEADING FRONTMATTER  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Dr. Wood is currently working with the Department of Energy's Naval Petroleum and Oil Shale Reserves Office to stand up the Western Energy Corridor Initiative, and he is also...

272

Heading 1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2011 Technical Evaluation Study Project No. 23843 Integration of HTGRs to an Ex Situ Oil Shale Retort Operation, Economic Analysis 08022011 Form 412.09 (Rev. 10) Idaho National...

273

HEADING FRONTMATTER  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

logistics for biomass energy conversion, environmental impacts of in situ and ex situ oil shale energy development, and watershed resource management and energy issues; provides...

274

Heading 1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Technical Evaluation Study Project No. 23843 Integration of HTGRs with an In Situ Oil Shale Operation 05162011 2 Form 412.09 (Rev. 10) Idaho National Laboratory INTEGRATION...

275

HEADING FRONTMATTER  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

M.S., Electrical and Computer Engineering 1989 Universidad de Carabobo, Naguanagua, Venezuela, B.S., Electrical Engineering 1987 Current Q, SCI, and Sigmas clearances...

276

HEADING FRONTMATTER  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

analysis, and general lab duties. Computer Skills Languages Programming experience in Matlab and Visual Basic Word ProcessingSpreadsheetOther Proficient with Microsoft Excel,...

277

Heading 1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Gas (SNG), HCE, 2005. 34. Udengaard, 2008, Udengaard, Niels R., et al., Convert Coal, petcoke into valuable SNG, Haldor Topsoe, April 2008. 35. van der Ploeg, H. J., et al., The...

278

Heading 1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Version 19, Sudbury, Massachusetts: Thermoflow, 2009. Udengaard, 2009, "Convert Coal, Petcoke into Valuable SNG," Designing & Operating Coal-base Substitute Natural Gas (SNG)...

279

Heading 1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

a high temperature pump system that utilizes active magnetic bearings and a switched reluctance motor to remove the need for pump seals which are a major cause of maintenance and...

280

HEADING FRONTMATTER  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

work on project designs, engineering design files, and design analysis studies for wind farms, transmission linessystems, power plant systems, and controls, etc;...

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
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281

HEADING FRONTMATTER  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

on odor control and waste water disposal to regional trout farm, beet sugar, and potato industries. Bioremediation: Tested and developed design procedures for a new style of...

282

HEADING FRONTMATTER  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

on the development of technologies to enhance feasibility of power generation from geothermal energy. In addition to being an investigator for two program projects, his...

283

HEADING FRONTMATTER  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

M. CALIVA Education and Training University of Idaho, Moscow, Idaho, USA, M.S., Systems Engineering 2003 University of Central Florida, Orlando, Florida, USA, M.B.A., Emphasis:...

284

A MATLAB-based eye tracking control system using non-invasive helmet head restraint in the macaque  

Science Journals Connector (OSTI)

AbstractBackground Tracking eye position is vital for behavioral and neurophysiological investigations in systems and cognitive neuroscience. Infrared camera systems which are now available can be used for eye tracking without the need to surgically implant magnetic search coils. These systems are generally employed using rigid head fixation in monkeys, which maintains the eye in a constant position and facilitates eye tracking. New method We investigate the use of non-rigid head fixation using a helmet that constrains only general head orientation and allows some freedom of movement. We present a MATLAB software solution to gather and process eye position data, present visual stimuli, interact with various devices, provide experimenter feedback and store data for offline analysis. Comparison with existing method Our software solution achieves excellent timing performance due to the use of data streaming, instead of the traditionally employed data storage mode for processing analog eye position data. Results We present behavioral data from two monkeys, demonstrating that adequate performance levels can be achieved on a simple fixation paradigm and show how performance depends on parameters such as fixation window size. Our findings suggest that non-rigid head restraint can be employed for behavioral training and testing on a variety of gaze-dependent visual paradigms, reducing the need for rigid head restraint systems for some applications. Conclusion While developed for macaque monkey, our system of course can work equally well for applications in human eye tracking where head constraint is undesirable.

Paolo De Luna; Mohamed Faiz Bin Mohamed Mustafar; Gregor Rainer

2014-01-01T23:59:59.000Z

285

Economic comparison of a well-head geothermal power plant and a traditional one  

Science Journals Connector (OSTI)

Abstract The objective of this paper was to do an economic comparison between the traditional approach to geothermal projects and a well-head method, where smaller power plants were installed on each well to considerably reduce the time until energy production begins. The two methods were compared in a hypothetical steamfield, based on their NPV and net power production. The comparison showed that wellhead power plants benefit geothermal projects by increasing the power output and NPV by as much as 5% and 16% respectively, depending on how early they can start production and the rate of installation.

Carlos Atli Crdova Geirdal; Maria S. Gudjonsdottir; Pall Jensson

2015-01-01T23:59:59.000Z

286

A comparison of two methods of femoral head and neck excision in the dog  

E-Print Network [OSTI]

femoral head and neck excision in all dogs. Lameness was graded by the author and 3 unbiased examiners, and forceplate analysis was performed preoperatively and at 1, 2, 4, 6, and 16 weeks postoperatively. Other parameters evaluated at these times.... Weight bearing forces of the operated limb were increased at 6 and 16 weeks, but did not return to the preoperative value in either group. The muscle flap group demonstrated less weight bearing force on the operated limb at weeks 6 and 16 than...

Mann, Fred Anthony

2012-06-07T23:59:59.000Z

287

Read/write head for a magnetic tape device having grooves for reducing tape floating  

DOE Patents [OSTI]

A read/write head for a magnetic tape includes an elongated chip assembly and a tape running surface formed in the longitudinal direction of the chip assembly. A pair of substantially spaced parallel read/write gap lines for supporting read/write elements extend longitudinally along the tape running surface of the chip assembly. Also, at least one groove is formed on the tape running surface on both sides of each of the read/write gap lines and extends substantially parallel to the read/write gap lines.

Aoki, Kenji (Kawasaki, JP)

2005-08-09T23:59:59.000Z

288

Head-on collisions of unequal mass black holes in D=5 dimensions  

SciTech Connect (OSTI)

We study head-on collisions of unequal mass black hole binaries in D=5 spacetime dimensions, with mass ratios between 1:1 and 1:4. Information about gravitational radiation is extracted by using the Kodama-Ishibashi gauge-invariant formalism and details of the apparent horizon of the final black hole. We present waveforms, total integrated energy and momentum for this process. Our results show surprisingly good agreement, within 5% or less, with those extrapolated from linearized, point-particle calculations. Our results also show that consistency with the area theorem bound requires that the same process in a large number of spacetime dimensions must display new features.

Witek, Helvi [CENTRA, Departamento de Fisica, Instituto Superior Tecnico, Universidade Tecnica de Lisboa (UTL), Avenida Rovisco Pais 1, 1049 Lisboa (Portugal); Cardoso, Vitor [CENTRA, Departamento de Fisica, Instituto Superior Tecnico, Universidade Tecnica de Lisboa (UTL), Avenida Rovisco Pais 1, 1049 Lisboa (Portugal); Department of Physics and Astronomy, University of Mississippi, University, Mississippi 38677 (United States); Gualtieri, Leonardo [Dipartimento di Fisica, 'Sapienza' Universita di Roma e Sezione INFN Roma1, Piazzale Aldo Moro 5, 00185, Roma (Italy); Herdeiro, Carlos [Departamento de Fisica da Universidade de Aveiro, Campus de Santiago, 3810-183 Aveiro (Portugal); Centro de Fisica do Porto (CFP), Departamento de Fisica e Astronomia, Faculdade de Ciencias da Universidade do Porto (FCUP), Rua do Campo Alegre, 4169-007 Porto (Portugal); Sperhake, Ulrich [Department of Physics and Astronomy, University of Mississippi, University, Mississippi 38677 (United States); Institut de Ciencies de l'Espai (CSIC-IEEC), Facultat de Ciencies, Campus Universitat Autonoma de Barcelona, E-08193 Bellaterra (Spain); California Institute of Technology, Pasadena, California 91125 (United States); Zilhao, Miguel [Centro de Fisica do Porto (CFP), Departamento de Fisica e Astronomia, Faculdade de Ciencias da Universidade do Porto (FCUP), Rua do Campo Alegre, 4169-007 Porto (Portugal)

2011-02-15T23:59:59.000Z

289

Head Loss Through Fibrous Debris Bed with Different Types of Perforated Strainers  

E-Print Network [OSTI]

Loss of Coolant Accident LWR Light Water Reactor MBLOCA Medium Break Loss of Coolant Accident MSDS Material Safety Data Sheet NEI Nuclear Energy Institute NIST National Institute of Standards and Technology NPP Nuclear Power Plants NPSH Net... than the randomly generated debris bed on the sump strainer of the NPP. The U.S. NRC began their analysis in 1996 in order to predict and estimate the loss of the Net Positive Suction Head (NPSH) by establishing GSI-191. In 1995, NUREG/CR-6224...

Abdulsattar, Suhaeb S

2014-05-03T23:59:59.000Z

290

McDermott Technologies to Head Team To Test Materials for 21st Century  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

U.S. Department of Energy Issued on February 4, 1999 McDermott Technologies to Head Team To Test Materials for 21st Century Power Plant The high-efficiency power plant of the 21st century may still be on the utility industry's drawing boards, but the new high-strength, corrosion resistant alloys that will make these power plants possible are about to enter the "real life" testing stage. The Department of Energy (DOE) has awarded a contract to McDermott Technology, Inc., Alliance, OH, to test 10 of the most promising of these alloys in a coal-fired boiler at Ohio Edison's Niles (OH) Power Station. DOE, through its Federal Energy Technology Center, will provide $700,000 of a $1.9 million contract for a five-year testing program to identify candidate materials for tomorrow's advanced boilers. McDermott will head a team made up of Babcock & Wilcox, Consol of Library, PA, the Ohio Coal Development Office, DOE's Oak Ridge National Laboratory, and Ohio Edison.

291

Myosin head orientation: a structural determinant for the Frank-Starling relationship  

SciTech Connect (OSTI)

The cellular mechanism underlying the Frank-Starling law of the heart is myofilament length-dependent activation. The mechanism(s) whereby sarcomeres detect changes in length and translate this into increased sensitivity to activating calcium has been elusive. Small-angle X-ray diffraction studies have revealed that the intact myofilament lattice undergoes numerous structural changes upon an increase in sarcomere length (SL): lattice spacing and the I{sub 1,1}/I{sub 1,0} intensity ratio decreases, whereas the M3 meridional reflection intensity (I{sub M3}) increases, concomitant with increases in diastolic and systolic force. Using a short ({approx}10 ms) X-ray exposure just before electrical stimulation, we were able to obtain detailed structural information regarding the effects of external osmotic compression (with mannitol) and obtain SL on thin intact electrically stimulated isolated rat right ventricular trabeculae. We show that over the same incremental increases in SL, the relative changes in systolic force track more closely to the relative changes in myosin head orientation (as reported by IM3) than to the relative changes in lattice spacing. We conclude that myosin head orientation before activation determines myocardial sarcomere activation levels and that this may be the dominant mechanism for length-dependent activation.

Farman, Gerrie P.; Gore, David; Allen, Edward; Schoenfelt, Kelly; Irving, Thomas C.; de Tombe, Pieter P. (IIT); (UIC)

2011-09-06T23:59:59.000Z

292

Optimization of UAV Heading for the Ground-to-Air Uplink  

E-Print Network [OSTI]

In this paper we consider a collection of single-antenna ground nodes communicating with a multi-antenna unmanned aerial vehicle (UAV) over a multiple-access ground-to-air wireless communications link. The UAV uses beamforming to mitigate the inter-user interference and achieve spatial division multiple access (SDMA). First, we consider a simple scenario with two static ground nodes and analytically investigate the effect of the UAV heading on the system sum rate. We then study a more general setting with multiple mobile ground-based terminals, and develop an algorithm for dynamically adjusting the UAV heading in order to maximize a lower bound on the ergodic sum rate of the uplink channel, using a Kalman filter to track the positions of the mobile ground nodes. Fairness among the users can be guaranteed through weighting the bound for each user's ergodic rate with a factor inversely proportional to their average data rate. For the common scenario where a high $K$-factor channel exists between the ground node...

Jiang, Feng

2011-01-01T23:59:59.000Z

293

Observations of post-flare supra-arcades: instabilities at the head of reconnection jets  

E-Print Network [OSTI]

Supra-arcades are bright fans of emission that develop after eruptive flares, above post-flare arcades. The underlying flare arcades are thought to be a consequence of magnetic reconnection along a current sheet in the corona. At the same time, theory predicts plasma jets from the reconnection site which, because of their low density, are extremely difficult to observe directly. It has been suggested, however, that the dark supra-arcade downflows (SADs) seen falling through supra-arcade fans may be low-density jet plasma. The head of a low density jet directed towards higher density plasma would be Rayleigh-Taylor unstable, and lead to the development of rapidly growing low and high density fingers along the interface. Here we show details of SADs forming at the top of bright supra-arcade fans, as seen in Solar Dynamics Observatory Atmospheric Imaging Assembly 131A images. The SADs often formed near the top of fan spikes. Some of the SADs were seen to split at their heads. Most SADs did not show enhanced emis...

Innes, Davina; Bhattacharjee, Amitava; Huang, Yi-Min

2014-01-01T23:59:59.000Z

294

Web-based parenting skills to reduce behavior problems following abusive head trauma: A pilot study  

Science Journals Connector (OSTI)

Abstract Pediatric abusive head trauma causes significant cognitive and behavioral morbidity, yet very few post-acute interventions exist to facilitate long-term recovery. To meet the needs of this vulnerable population, we piloted a web-based intervention with live coaching designed to improve positive parenting and child behavior. The efficacy of this parenting skills intervention was compared with access to Internet resources on brain injury. Participants included seven families (four randomized to the parenting intervention and three randomized to receive Internet resources). Parenting skills were observed and child behavior was rated at baseline and intervention completion. At completion, parents who received the parenting skills intervention showed significantly more positive parenting behaviors and fewer undesirable behaviors during play than parents who received access to Internet resources. Additionally, during play, children in the parenting skills intervention group were more compliant following parent commands than children in the Internet resources group. Lastly, parents who received the parenting intervention reported less intense oppositional and conduct behavior problems in their children post-intervention than did parents in the Internet resources group. These findings provide preliminary evidence for the use of this web-based positive parenting skills intervention to improve parenting skills and child behavior following abusive head trauma.

Jennifer E. Mast; Tanya N. Antonini; Stacey P. Raj; Karen S. Oberjohn; Amy Cassedy; Kathi L. Makoroff; Shari L. Wade

2014-01-01T23:59:59.000Z

295

Bottom head to shell junction assembly for a boiling water nuclear reactor  

DOE Patents [OSTI]

A bottom head to shell junction assembly which, in one embodiment, includes an annular forging having an integrally formed pump deck and shroud support is described. In the one embodiment, the annular forging also includes a top, cylindrical shaped end configured to be welded to one end of the pressure vessel cylindrical shell and a bottom, conical shaped end configured to be welded to the disk shaped bottom head. Reactor internal pump nozzles also are integrally formed in the annular forging. The nozzles do not include any internal or external projections. Stubs are formed in each nozzle opening to facilitate welding a pump housing to the forging. Also, an upper portion of each nozzle opening is configured to receive a portion of a diffuser coupled to a pump shaft which extends through the nozzle opening. Diffuser openings are formed in the integral pump deck to provide additional support for the pump impellers. The diffuser opening is sized so that a pump impeller can extend at least partially therethrough. The pump impeller is connected to the pump shaft which extends through the nozzle opening. 5 figs.

Fife, A.B.; Ballas, G.J.

1998-02-24T23:59:59.000Z

296

Dan Dewey Poster 24.04, AAS HEAD Meeting, 2004 1 A Coarse 3D Model of E0102-72  

E-Print Network [OSTI]

Dan Dewey Poster 24.04, AAS HEAD Meeting, 2004 1 A Coarse 3D Model of E0102-72 Derived from HETG Schulz, Mike Stage Contact: dd@space.mit.edu #12;Dan Dewey Poster 24.04, AAS HEAD Meeting, 2004 2 HETG (above); Ne X line "color-velocity" map: #12;Dan Dewey Poster 24.04, AAS HEAD Meeting, 2004 3 O III Long

Dewey, Daniel

297

Long-Range And Head-On Beam-Beam Compensation Studies in RHIC With Lessons for the LHC  

SciTech Connect (OSTI)

Long-range as well as head-on beam-beam effects are expected to limit the LHC performance with design parameters. They are are also important consideration for the LHC upgrades. To mitigate long-range effects, current carrying wires parallel to the beam were proposed. Two such wires are installed in RHIC where they allow studying the effect of strong long-range beam-beam effects, as well as the compensation of a single long-range interaction. The tests provide benchmark data for simulations and analytical treatments. Electron lenses were proposed for both RHIC and the LHC to reduce the head-on beam-beam effect. We present the experimental long-range beam-beam program at RHIC and report on head-on compensations studies based on simulations.

Fischer, W.; Luo, Y.; Abreu, N.; Calaga, R.; Montag, C.; Robert-Demolaize, G.; /Brookhaven; Dorda, U.; Koutchouk, J.P.; Sterbini, G.; Zimmermann, F.; /CERN; Kim, H.J.; Sen, T.; Shiltsev, V.; Valishev, A.; /Fermilab; Qiang, J.; /LBL, Berkeley; Kabel, A.; /SLAC

2011-11-28T23:59:59.000Z

298

Head-on collisions of binary white dwarf-neutron stars: Simulations in full general relativity  

SciTech Connect (OSTI)

We simulate head-on collisions from rest at large separation of binary white dwarf-neutron stars (WDNSs) in full general relativity. Our study serves as a prelude to our analysis of the circular binary WDNS problem. We focus on compact binaries whose total mass exceeds the maximum mass that a cold-degenerate star can support, and our goal is to determine the fate of such systems. A fully general relativistic hydrodynamic computation of a realistic WDNS head-on collision is prohibitive due to the large range of dynamical time scales and length scales involved. For this reason, we construct an equation of state (EOS) which captures the main physical features of neutron stars (NSs) while, at the same time, scales down the size of white dwarfs (WDs). We call these scaled-down WD models 'pseudo-WDs (pWDs)'. Using pWDs, we can study these systems via a sequence of simulations where the size of the pWD gradually increases toward the realistic case. We perform two sets of simulations; One set studies the effects of the NS mass on the final outcome, when the pWD is kept fixed. The other set studies the effect of the pWD compaction on the final outcome, when the pWD mass and the NS are kept fixed. All simulations show that after the collision, 14%-18% of the initial total rest mass escapes to infinity. All remnant masses still exceed the maximum rest mass that our cold EOS can support (1.92M{sub {center_dot}}), but no case leads to prompt collapse to a black hole. This outcome arises because the final configurations are hot. All cases settle into spherical, quasiequilibrium configurations consisting of a cold NS core surrounded by a hot mantle, resembling Thorne-Zytkow objects. Extrapolating our results to realistic WD compactions, we predict that the likely outcome of a head-on collision of a realistic, massive WDNS system will be the formation of a quasiequilibrium Thorne-Zytkow-like object.

Paschalidis, Vasileios; Etienne, Zachariah; Liu, Yuk Tung [Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (United States); Shapiro, Stuart L. [Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (United States); Department of Astronomy and NCSA, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (United States)

2011-03-15T23:59:59.000Z

299

Association of Traumatic Brain Injuries With Vomiting in Children With Blunt Head Trauma  

Science Journals Connector (OSTI)

Study objective We aimed to determine the prevalence of traumatic brain injuries in children who vomit after minor blunt head trauma, particularly when the vomiting occurs without other findings suggestive of traumatic brain injury (ie, isolated vomiting). We also aimed to determine the relationship between the timing and degree of vomiting and traumatic braininjury prevalence. Methods This was a secondary analysis of children younger than 18 years with minor blunt head trauma. Clinicians assessed for history and characteristics of vomiting at the initial evaluation. We assessed for the prevalence of clinically important traumatic brain injury and traumatic brain injury on computed tomography (CT). Results Of 42,112 children enrolled, 5,557 (13.2%) had a history of vomiting, of whom 815 of 5,392 (15.1%) with complete data had isolated vomiting. Clinically important traumatic brain injury occurred in 2 of 815 patients (0.2%;95% confidence interval [CI] 0% to 0.9%) with isolated vomiting compared with 114 of 4,577 (2.5%; 95% CI 2.1%to 3.0%) with nonisolated vomiting (difference 2.3%, 95% CI 2.8% to 1.5%). Of patients with isolated vomiting for whom CT was performed, traumatic brain injury on CT occurred in 5 of 298 (1.7%; 95% CI 0.5% to 3.9%) compared with 211 of 3,284 (6.4%; 95% CI 5.6% to 7.3%) with nonisolated vomiting (difference 4.7%; 95% CI 6.0% to 2.4%). We found no significant independent associations between prevalence of clinically important traumatic brain injury and traumatic brain injury on CT with either the timing of onset or time since the last episode of vomiting. Conclusion Traumatic brain injury on CT is uncommon and clinically important traumatic brain injury is very uncommon in children with minor blunt head trauma when vomiting is their only sign or symptom. Observation in the emergency department before determining the need for CT appears appropriate for many of these children.

Peter S. Dayan; James F. Holmes; Shireen Atabaki; John Hoyle Jr.; Michael G. Tunik; Richard Lichenstein; Elizabeth Alpern; Michelle Miskin; Nathan Kuppermann

2014-01-01T23:59:59.000Z

300

The 'Potato Head' method for identifying driver preferences for vehicle controls  

Science Journals Connector (OSTI)

This paper describes a method for identifying customer preferences for product features (here, vehicle controls) and how to implement the method. In brief, people sit in a vehicle mockup surrounded by panels of switches. For each function of interest (e.g., headlights on/off, hazard, etc.). They select the switch they prefer and attach it to the instrument panel (covered with Velcro) or the steering column where they want it. (This is much like the Mr Potato Head toy where children construct a face from parts - eyes, noses, etc.). To identify poor choices, test participants then drive a simulator while operating the chosen switches. Afterwards, participants can change their preferences, which they often do. While applied to controls here, it could be used to determine preferences for displays or other features.

P. Green; G . Paelke; J . Boreczky

1992-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Unbounded energies of debris from head-on particle collisions near black holes  

E-Print Network [OSTI]

If two particles move toward a black hole and collide near the horizon, the energy E_{c.m.} in the centre of mass can grow unbounded. This is a so-called Ba\\~nados-Silk-West (BSW) effect. One of problems creating obstacles to the possibility of its observation consists in that individual energy E of a fragment at infinity remains finite because of redshift. We show that in the case of head-on collision, debris may have unbounded energy E. An essential ingredient of this scenario is a particle moving away from a black hole in the near-horizon region. It can appear due to precedent collision that implies multiple scattering.

O. B. Zaslavskii

2014-11-02T23:59:59.000Z

302

Unbounded energies of debris from head-on particle collisions near black holes  

E-Print Network [OSTI]

If two particles move toward a black hole and collide near the horizon, the energy E_{c.m.} in the centre of mass can grow unbounded. This is a so-called Ba\\~nados-Silk-West (BSW) effect. One of problems creating obstacles to the possibility of its observation consists in that individual energy E of a fragment at infinity remains finite because of redshift. We show that in the case of head-on collision, debris may have unbounded energy E. An essential ingredient of this scenario is a particle moving away from a black hole in the near-horizon region. It can appear due to precedent collision that implies multiple scattering.

O. B. Zaslavskii

2014-12-22T23:59:59.000Z

303

Computer modeling of infrared head-on emission from missile noses  

SciTech Connect (OSTI)

A computer model that takes into account the effect of aerodynamic and solar heating, sky irradiation, and radiative cooling on infrared emission from missile noses is presented. The heat transfer equation was solved with numerical techniques both in the steady-state (constant sped and altitude flight of cruise missiles) and in the nonstationary regime (quickly variable speed and altitude of short to medium range ballistic missiles) to give the temperature distribution on the skin surface. The corresponding head-on absolute infrared emission in the 3 to 5 {mu}m spectral bands was computed as a function of time of flight and missile altitude. Results show a strong dependence of temperature on the skin material, on the character of the aerodynamic flow (laminar or turbulent boundary layer), and on the physical characteristics of the atmosphere. By varying these parameters into reasonable ranges, infrared emissions spanning over more than an order of magnitude were obtained.

Tofani, A. (Officine Galileo SpA, Via Einstein 35, 50013 Campi Bisenzio, Florence (IT))

1990-02-01T23:59:59.000Z

304

Cognitive Functioning After Radiotherapy or Chemoradiotherapy for Head-and-Neck Cancer  

SciTech Connect (OSTI)

Purpose: To perform a comprehensive cognitive function (CF) assessment in patients who were relapse free after curative intent radiotherapy (RT) or chemoradiotherapy for squamous cell carcinoma of the head and neck. Methods and Materials: Patients underwent neuropsychological tests to assess their objective CF; completed questionnaires to assess subjective CF, quality of life, and affect; and underwent blood tests to assess hematologic, biochemical, endocrine, and cytokine status. Retrospectively, the dosimetry of incidental radiation to the brain was determined for all patients, and the dose intensity of cisplatin was determined in those who had undergone chemoradiotherapy. Results: A total of 10 patients were enrolled (5 treated with radiotherapy only and 5 with radiotherapy and cisplatin). The mean time from the end of treatment was 20 months (range, 9-41). All patients were able to complete the assessment protocol. Of the 10 patients, 9 had impaired objective CF, with memory the most severely affected. The severity of memory impairment correlated significantly with the radiation dose to the temporal lobes, and impaired dexterity correlated significantly with the radiation dose to the cerebellum, suggesting that these deficits might be treatment related. Patients receiving cisplatin appeared to have poorer objective CF than patients receiving only RT, although this difference did not achieve statistical significance, likely owing to the small sample size. Consistent with the published data, objective CF did not correlate with subjective CF or quality of life. No association was found between objective CF and patients' affect, hematologic, biochemical, endocrine, and cytokine status. Conclusion: Neuropsychological testing is feasible in squamous cell carcinoma of the head-and-neck survivors. The findings were suggestive of treatment-related cognitive dysfunction. These results warrant additional investigation.

Gan, Hui K. [Department of Medical Oncology, Princess Margaret Hospital, Toronto, ON (Canada); Bernstein, Lori J. [Department of Psychosocial Oncology, Princess Margaret Hospital, Toronto, ON (Canada); Brown, Jennifer [Department of Medical Oncology, Princess Margaret Hospital, Toronto, ON (Canada); Ringash, Jolie; Vakilha, Mehrdad [Department of Radiation Oncology, Princess Margaret Hospital, Toronto, ON (Canada); Wang, Lisa [Department of Biostatistics, Princess Margaret Hospital, Toronto, ON (Canada); Goldstein, David [Department of Otolaryngology, Princess Margaret Hospital, Toronto, ON (Canada); Kim, John; Hope, Andrew; O'Sullivan, Brian; Waldron, John [Department of Radiation Oncology, Princess Margaret Hospital, Toronto, ON (Canada); Abdul Razak, Albiruni R.; Chen, Eric X. [Department of Medical Oncology, Princess Margaret Hospital, Toronto, ON (Canada); Siu, Lillian L., E-mail: lillian.siu@uhn.on.ca [Department of Medical Oncology, Princess Margaret Hospital, Toronto, ON (Canada)

2011-09-01T23:59:59.000Z

305

Evaluation of Thyroid Disorders During Head-and-Neck Radiotherapy by Using Functional Analysis and Ultrasonography  

SciTech Connect (OSTI)

Purpose: To evaluate thyroid function and vascular changes during radiotherapy for patients with head and neck cancer. Methods and Materials: Fifty patients treated with primary or postoperative radiotherapy for various cancers in the head and neck region were prospectively evaluated. The serum samples (triiodothyronine [T3], thyroxine [T4], thyroid-stimulating hormone [TSH], free triiodothyronine [FT3], and free thyroxine [FT4]), the echo level of the thyroid gland, and color Doppler ultrasonography (CDU) parameters of the right inferior thyroid artery (RITA) of the patients were measured before and at regular intervals during radiotherapy. The thyroid gland dose-volume histograms of the patients were derived from their computed tomography-based treatment plans. Results: There was a significant fall in TSH level (p < 0.0001) but an increase in FT4 (p < 0.0001) and T4 (p < 0.022) levels during the radiotherapy course. The threshold dose required to produce significant changes was 12 Gy (Biologically Effective Dose in 2-Gy fractions, BED{sub 2}). There were significant rises in the patients' pulsatility index, resistive index, peak systolic velocity, blood volume flow levels, and RITA diameter (p < 0.0001), as detected by CDU during radiotherapy, compared to those parameters measured before the treatment. Hypoechogenicity and irregular echo patterns (p < 0.0001) were seen during radiotherapy compared to those before treatment. There was significant Pearson's correlation between the CDU parameters and T4, FT4, and TSH levels. Conclusions: Radiation-induced thyroiditis is regarded as primary damage to the thyroid gland. Thyroiditis can subsequently result in hypothyroidism or hyperthyroidism. Our results demonstrated that changes in thyroid vessels occur during radiotherapy delivered to patients. Vessel changes also can be attributed to the late effect of radiation on the thyroid gland. The hypoechogenicity and irregular echo patterns observed in patients may result from the increase in intrathyroidal flow.

Bakhshandeh, Mohsen [Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran (Iran, Islamic Republic of); Hashemi, Bijan, E-mail: bhashemi@modares.ac.ir [Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran (Iran, Islamic Republic of); Mahdavi, Seyed Rabie [Department of Medical Physics, Faculty of Medical Sciences, Tehran University of Medical Sciences, Tehran (Iran, Islamic Republic of); Nikoofar, Alireza [Department of Radiation Oncology, Hafte-Tir Hospital, Tehran University of Medical Sciences, Tehran (Iran, Islamic Republic of); Edraki, Hamid Reza [Department of Radiology, Panzdahe-Khordad Hospital, Shahid Beheshti University of Medical Sciences, Tehran (Iran, Islamic Republic of); Kazemnejad, Anoshirvan [Department of Biostatistics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran (Iran, Islamic Republic of)

2012-05-01T23:59:59.000Z

306

Fractionated Stereotactic Radiosurgery for Reirradiation of Head-and-Neck Cancer  

SciTech Connect (OSTI)

Purpose: Stereotactic radiosurgery (SRS) is an appealing treatment option after previous radiotherapy because of its precision, conformality, and reduced treatment duration. We report our experience with reirradiation using fractionated SRS for head-and-neck cancer. Methods and Materials: From 2002 to 2008, 65 patients received SRS to the oropharynx (n = 13), hypopharynx (n = 8), nasopharynx (n = 7), paranasal sinus (n = 7), neck (n = 7), and other sites (n = 23). Thirty-eight patients were treated definitively and 27 patients with metastatic disease and/or untreated local disease were treated palliatively. Nine patients underwent complete macroscopic resection before SRS. Thirty-three patients received concurrent chemoradiation. The median initial radiation dose was 67 Gy, and the median reirradiation SRS dose was 30 Gy (21-35 Gy) in 2-5 fractions. Results: Median follow-up for surviving patients was 16 months. Fifty-six patients were evaluable for response: 30 (54%) had complete, 15 (27%) had partial, and 11 (20%) had no response. Median overall survival (OS) for all patients was 12 months. For definitively treated patients, the 2-year OS and locoregional control (LRC) rates were 41% and 30%, respectively. Multivariate analysis demonstrated that higher total dose, surgical resection, and nasopharynx site were significantly associated with improved LRC; surgical resection and nonsquamous histology were associated with improved OS. Seven patients (11%) experienced severe reirradiation-related toxicity, including one treatment-attributed death. Conclusion: SRS reirradiation for head-and-neck cancer is feasible. This study demonstrates encouraging response rates with acceptable toxicity. Fractionated SRS reirradiation with concurrent chemotherapy in select patients warrants further study.

Unger, Keith R., E-mail: kxu2@gunet.georgetown.ed [Department of Radiation Medicine, Georgetown University Hospital, Washington, D.C (United States); Lominska, Christopher E. [Department of Radiation Medicine, Georgetown University Hospital, Washington, D.C (United States); Deeken, John F. [Department of Hematology/Oncology, Georgetown University Hospital, Washington, D.C (United States)

2010-08-01T23:59:59.000Z

307

Clinical experience transitioning from IMRT to VMAT for head and neck cancer  

SciTech Connect (OSTI)

To quantify clinical differences for volumetric modulated arc therapy (VMAT) versus intensity modulated radiation therapy (IMRT) in terms of dosimetric endpoints and planning and delivery time, twenty head and neck cancer patients have been considered for VMAT using Nucletron Oncentra MasterPlan delivered via an Elekta linear accelerator. Differences in planning time between IMRT and VMAT were estimated accounting for both optimization and calculation. The average delivery time per patient was obtained retrospectively using the record and verify software. For the dosimetric comparison, all contoured organs at risk (OARs) and planning target volumes (PTVs) were evaluated. Of the 20 cases considered, 14 had VMAT plans approved. Six VMAT plans were rejected due to unacceptable dose to OARs. In terms of optimization time, there was minimal difference between the two modalities. The dose calculation time was significantly longer for VMAT, 4 minutes per 358 degree arc versus 2 minutes for an entire IMRT plan. The overall delivery time was reduced by 9.2 3.9 minutes for VMAT (51.4 15.6%). For the dosimetric comparison of the 14 clinically acceptable plans, there was almost no statistical difference between the VMAT and IMRT. There was also a reduction in monitor units of approximately 32% from IMRT to VMAT with both modalities demonstrating comparable quality assurance results. VMAT provides comparable coverage of target volumes while sparing OARs for the majority of head and neck cases. In cases where high dose modulation was required for OARs, a clinically acceptable plan was only achievable with IMRT. Due to the long calculation times, VMAT plans can cause delays during planning but marked improvements in delivery time reduce patient treatment times and the risk of intra-fraction motion.

Studenski, Matthew T., E-mail: matthew.studenski@jeffersonhospital.org [Department of Radiation Oncology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, PA (United States); Bar-Ad, Voichita; Siglin, Joshua [Department of Radiation Oncology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, PA (United States); Cognetti, David; Curry, Joseph [Department of Otolaryngology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, PA (United States); Tuluc, Madalina [Department of Pathology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, PA (United States); Harrison, Amy S. [Department of Radiation Oncology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, PA (United States)

2013-07-01T23:59:59.000Z

308

Abstract--During quadrupedal robot locomotion, there is pitch, yaw, and roll of the head and body due to the stepping.  

E-Print Network [OSTI]

Abstract--During quadrupedal robot locomotion, there is pitch, yaw, and roll of the head and body vestibular system that has been embedded in the robot's head. Our approach can rapidly learn of the biped and quadrupedal robots, however, generates considerable pitch, roll, and yaw body

Parsons, Simon

309

[To be printed on the headed notepaper of the Administering Organisation or its Technology Transfer Group (if an independent organisation) or the Company  

E-Print Network [OSTI]

[To be printed on the headed notepaper of the Administering Organisation or its Technology Transfer of Signature:___________________________ [Signed by Head Technology Transfer Office (TTO) or Group on behalf of Administering Organisation or its Technology Transfer Group if independent or if the University does not have

Rambaut, Andrew

310

Evaluation of precipitates used in strainer head loss testing : Part II. precipitates by in-situ aluminum alloy corrosion.  

SciTech Connect (OSTI)

Vertical loop head loss tests were performed with 6061 and 1100 aluminum (Al) alloy plates immersed in borated solution at pH = 9.3 at room temperature and 60 C. The results suggest that the potential for corrosion of an Al alloy to result in increased head loss across a glass fiber bed may depend on its microstructure, i.e., the size distribution and number density of intermetallic particles that are present in Al matrix and FeSiAl ternary compounds, as well as its Al release rate. Per unit mass of Al removed from solution, the WCAP-16530 aluminum hydroxide (Al(OH){sub 3}) surrogate was more effective in increasing head loss than the Al(OH)3 precipitates formed in situ by corrosion of Al alloy. However, in choosing a representative amount of surrogate for plant specific testing, consideration should be given to the potential for additional head losses due to intermetallic particles and the apparent reduction in the effective solubility of Al(OH){sub 3} when intermetallic particles are present.

Bahn, C.; Kasza, K. E.; Shack, W. J.; Natesan, K. (Nuclear Engineering Division)

2011-05-01T23:59:59.000Z

311

The use of cotton blue stain to improve the efficiency of picking and identifying chironomid head capsules  

E-Print Network [OSTI]

NOTE The use of cotton blue stain to improve the efficiency of picking and identifying chironomid Cotton blue was added to sediment sam- ples at least 2 h before chironomid head capsules were picked during the picking process. Cotton blue has been used previously to stain chitin in fungal cell walls

Bern, Universität

312

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 30, NO. 5, JUNE 2012 993 Optimization of UAV Heading for the  

E-Print Network [OSTI]

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 30, NO. 5, JUNE 2012 993 Optimization of UAV-antenna unmanned aerial vehicle (UAV) over a multiple-access ground-to-air communi- cations link. The UAV uses of the UAV's heading on the system sum rate. We then study a more general setting with multiple mobile ground

Swindlehurst, A. Lee

313

Using MR equations built from summary data 1 Running head: Using MR equations built from summary data  

E-Print Network [OSTI]

Using MR equations built from summary data 1 Running head: Using MR equations built from summary, United Kingdom. E-mail: j.crawford@abdn.ac.uk #12;Using MR equations built from summary data 2 Abstract; regression equations; single-case methods #12;Using MR equations built from summary data 3 INTRODUCTION

Crawford, John R.

314

Structure and Statistical Analysis of the Microphysical Properties of Generating Cells in the Comma Head Region of Continental Winter Cyclones  

Science Journals Connector (OSTI)

This paper presents analyses of the microphysical structure of cloud-top convective generating cells at temperatures between ?10 and ?55C across the comma head of 11 continental cyclones, using data collected by the W-band Wyoming Cloud Radar ...

David M. Plummer; Greg M. McFarquhar; Robert M. Rauber; Brian F. Jewett; David C. Leon

2014-11-01T23:59:59.000Z

315

Computational Modeling of Human Head Under Blast Shailesh Ganpule, Dr. Linxia Gu, Dr. Guoxin Cao, Dr.Namas Chandra  

E-Print Network [OSTI]

Computational Modeling of Human Head Under Blast Loading Shailesh Ganpule, Dr. Linxia Gu, Dr;Presentation Objective: To understand role of helmet in blast induced Traumatic Brain Injury (TBI: To understand underlying mechanisms of blast induced Traumatic Brain Injury (TBI) and develop mitigation

Farritor, Shane

316

Abstract--Dynamic characteristics of a tri-pad contact recording head were analyzed considering the surface energy of  

E-Print Network [OSTI]

of the spacing between a head and a disk surface is considered the most important. As a substitute for the flying-degrees-of-freedom (3-DOF) model. The configuration of the contact pad, the lubricant and the disk surface ECORDING density of hard disk drives (HDD) becomes larger to meet the demand of larger capacity

Matsuoka, Hiroshige

317

Seeing the whole elephant in the room: a holistic approach to ebooks Pamela Jacobs, Head (Acting), Information Resources & Collections  

E-Print Network [OSTI]

1 Seeing the whole elephant in the room: a holistic approach to ebooks Pamela Jacobs, Head (Acting We chose the title for our presentation to reflect that fact that ebooks are often the "elephant implications for users and staff. Ebooks can also be likened to the story of the Blind Man and the Elephant

Rosen, Jay

318

Running head: STEREOTYPE THREAT IN OLDER ADULTS 1 Stereotype threat can enhance, as well as impair, older adults' memory  

E-Print Network [OSTI]

Running head: STEREOTYPE THREAT IN OLDER ADULTS 1 Stereotype threat can enhance, as well as impair, and Rico Velasco for research assistance and to Dr. Tom Hess for providing us with the stereotype threat for publication. #12;STEREOTYPE THREAT IN OLDER ADULTS 2 Abstract (150) Negative stereotypes about aging can

Mather, Mara

319

Please leave this heading unchanged! Sound radiation of a non-rigid piston and pole cap compared with  

E-Print Network [OSTI]

Please leave this heading unchanged! Sound radiation of a non-rigid piston and pole cap compared are often modelled as a rigid piston in an infinite baffle. This model is for real loudspeakers somewhat of the baffled-piston radiation the spatial impulse response is presented. 1. Nijboer-Zernike approach

320

Running head: Resistance to floods1 Title: Quantifying invertebrate resistance to floods: a global-scale meta-analysis2  

E-Print Network [OSTI]

#12;1 Running head: Resistance to floods1 Title: Quantifying invertebrate resistance to floods Email: Laura.McMullen@icfi.com13 14 Email: lytleda@science.oregonstate.edu15 #12;2 Abstract16 Floods, but it is not clear whether floods have predictable effects on organisms that can18 allow us to generalize across

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

L'universit de Bourgogne (OCIM) recrute Un/eDveloppeur/euse web  

E-Print Network [OSTI]

.ocim.fr Catherine Ruppli :catherine.ruppli@u-bourgogne.fr Antoine Marchand : antoine.marchand Antoine Marchand, Ingénieur en développement informatique :antoine.marchand@u- bourgogne.fr o Catherine

Herrmann, Samuel

322

Un panorama europen des stratgies de coopration interportuaires1 Antoine Beyer (Paris Est, Ifsttar)  

E-Print Network [OSTI]

présentée au Congrès de l'Union Internationale de Géographie (UGI) qui s'est tenue à Cologne du 26 à 30 août

Paris-Sud XI, Université de

323

Stochastic variability of large-scale oceanic flows above topography anomalies Antoine Venaille,  

E-Print Network [OSTI]

, the ubiquity of red noise signals in time series of various oceanic metrics is generally thought to result from but with sufficient spatial resolution to simulate the "oceanic weather system", i.e. mesoscale eddies at scale from

324

Method to improve cancerous lesion detection sensitivity in a dedicated dual-head scintimammography system  

DOE Patents [OSTI]

An improved method for enhancing the contrast between background and lesion areas of a breast undergoing dual-head scintimammographic examination comprising: 1) acquiring a pair of digital images from a pair of small FOV or mini gamma cameras compressing the breast under examination from opposing sides; 2) inverting one of the pair of images to align or co-register with the other of the images to obtain co-registered pixel values; 3) normalizing the pair of images pixel-by-pixel by dividing pixel values from each of the two acquired images and the co-registered image by the average count per pixel in the entire breast area of the corresponding detector; and 4) multiplying the number of counts in each pixel by the value obtained in step 3 to produce a normalization enhanced two dimensional contrast map. This enhanced (increased contrast) contrast map enhances the visibility of minor local increases (uptakes) of activity over the background and therefore improves lesion detection sensitivity, especially of small lesions.

Kieper, Douglas Arthur (Newport News, VA); Majewski, Stanislaw (Yorktown, VA); Welch, Benjamin L. (Hampton, VA)

2008-10-28T23:59:59.000Z

325

Application of cathodic arc deposited amorphous hard carbon films to the head/disk tribology  

SciTech Connect (OSTI)

Amorphous hard carbon films deposited by filtered cathodic arc deposition exhibit very high hardness and elastic modulus, high mass density, low coefficient of friction, and the films are very smooth. All these properties are beneficial to applications of these films for the head/disk interface tribology. The properties of cathodic arc deposited amorphous carbon films are summarized, and they are compared to sputter deposited, hydrogenated (CH{sub x}), and nitrogenated (CN{sub x}) carbon films which are the present choice for hard disk and slider coatings. New developments in cathodic arc coaters are discussed which are of interest to the disk drive industry. Experiments on the nanotribology, mass density and hardness, corrosion behavior, and tribochemical behavior of cathodic arc films are reported. A number of applications of cathodic arc deposited films to hard disk and slider coatings are described. It is shown that their tribological performance is considerably better compared to CH{sub x} and CN{sub x} films.

Anders, S. [Lawrence Berkeley National Lab., CA (United States). Advanced Light Source Div.; Bhatia, C.S. [SSD/IBM, San Jose, CA (United States); Fong, W.; Lo, R.Y.; Bogy, D.B. [Univ. of California, Berkeley, CA (United States). Computer Mechanics Lab.

1998-04-01T23:59:59.000Z

326

On-Site Oxy-Lance Size Reduction of South Texas Project Reactor Vessel Heads - 12324  

SciTech Connect (OSTI)

On-Site Oxy-Lance size reduction of mildly radioactive large components has been accomplished at other operating plants. On-Site Oxy-Lance size reduction of more radioactive components like Reactor Vessel Heads had previously been limited to decommissioning projects. Building on past decommissioning and site experience, subcontractors for South Texas Project Nuclear Operating Company (STPNOC) developed an innovative integrated system to control smoke, radioactive contamination, worker dose, and worker safety. STP's innovative, easy to use CEDM containment that provided oxy lance access, smoke control, and spatter/contamination control was the key to successful segmentation for cost-effective and ALARA packaging and transport for disposal. Relative to CEDM milling, STP oxy-lance segmentation saved approximately 40 person- REM accrued during 9,000 hours logged into the radiological controlled area (RCA) during more than 3,800 separate entries. Furthermore there were no personnel contamination events or respiratory uptakes of radioactive material during the course of the entire project. (authors)

Posivak, Edward [WMG, inc. (United States); Keeney, Gilbert; Wheeler, Dean [Shaw Group (United States)

2012-07-01T23:59:59.000Z

327

Dentalmaps: Automatic Dental Delineation for Radiotherapy Planning in Head-and-Neck Cancer  

SciTech Connect (OSTI)

Purpose: To propose an automatic atlas-based segmentation framework of the dental structures, called Dentalmaps, and to assess its accuracy and relevance to guide dental care in the context of intensity-modulated radiotherapy. Methods and Materials: A multi-atlas-based segmentation, less sensitive to artifacts than previously published head-and-neck segmentation methods, was used. The manual segmentations of a 21-patient database were first deformed onto the query using nonlinear registrations with the training images and then fused to estimate the consensus segmentation of the query. Results: The framework was evaluated with a leave-one-out protocol. The maximum doses estimated using manual contours were considered as ground truth and compared with the maximum doses estimated using automatic contours. The dose estimation error was within 2-Gy accuracy in 75% of cases (with a median of 0.9 Gy), whereas it was within 2-Gy accuracy in 30% of cases only with the visual estimation method without any contour, which is the routine practice procedure. Conclusions: Dose estimates using this framework were more accurate than visual estimates without dental contour. Dentalmaps represents a useful documentation and communication tool between radiation oncologists and dentists in routine practice. Prospective multicenter assessment is underway on patients extrinsic to the database.

Thariat, Juliette, E-mail: jthariat@hotmail.com [Department of Radiation Oncology/Institut de biologie et developpement du cancer (IBDC) centre national de la recherche scientifique (CNRS) unite mixte de recherche UMR 6543, Cancer Center Antoine-Lacassagne, University of Nice Sophia-Antipolis, Nice Cedex (France); Ramus, Liliane [DOSIsoft, Cachan (France); INRIA (Institut National de Recherche en Automatique et en Automatique)-Asclepios Research Project, Sophia-Antipolis (France); Maingon, Philippe [Department of Radiation Oncology, Centre Georges-Francois Leclerc, Dijon Cedex (France); Odin, Guillaume [Department of Head-and-Neck Surgery, Centre Hospitalier Universitaire-Institut Universitaire de la Face et du Cou, Nice Cedex (France); Gregoire, Vincent [Department of Radiation Oncology, St.-Luc University Hospital, Brussels (Belgium); Darcourt, Vincent [Department of Radiation Oncology-Dentistry, Cancer Center Antoine-Lacassagne, University of Nice Sophia-Antipolis, Nice Cedex (France); Guevara, Nicolas [Department of Head-and-Neck Surgery, Centre Hospitalier Universitaire-Institut Universitaire de la Face et du Cou, Nice Cedex (France); Orlanducci, Marie-Helene [Department of Odontology, CHU, Nice (France); Marcie, Serge [Department of Radiation Oncology/Institut de biologie et developpement du cancer (IBDC) centre national de la recherche scientifique (CNRS) unite mixte de recherche UMR 6543, Cancer Center Antoine-Lacassagne, University of Nice Sophia-Antipolis, Nice Cedex (France); Poissonnet, Gilles [Department of Head-and-Neck Surgery, Cancer Center Antoine-Lacassagne-Institut Universitaire de la Face et du Cou, Nice Cedex (France); Marcy, Pierre-Yves [Department of Radiology, Cancer Center Antoine-Lacassagne, University of Nice Sophia-Antipolis, Nice Cedex (France); and others

2012-04-01T23:59:59.000Z

328

Head-on collision of dust-acoustic shock waves in strongly coupled dusty plasmas  

SciTech Connect (OSTI)

A theoretical investigation is carried out to study the propagation and the head-on collision of dust-acoustic (DA) shock waves in a strongly coupled dusty plasma consisting of negative dust fluid, Maxwellian distributed electrons and ions. Applying the extended PoincarLighthillKuo method, a couple of KortewegdeVriesBurgers equations for describing DA shock waves are derived. This study is a first attempt to deduce the analytical phase shifts of DA shock waves after collision. The impacts of physical parameters such as the kinematic viscosity, the unperturbed electron-to-dust density ratio, parameter determining the effect of polarization force, the ion-to-electron temperature ratio, and the effective dust temperature-to-ion temperature ratio on the structure and the collision of DA shock waves are examined. In addition, the results reveal the increase of the strength and the steepness of DA shock waves as the above mentioned parameters increase, which in turn leads to the increase of the phase shifts of DA shock waves after collision. The present model may be useful to describe the structure and the collision of DA shock waves in space and laboratory dusty plasmas.

EL-Shamy, E. F., E-mail: emadel-shamy@hotmail.com [Department of physics, Faculty of Science, Damietta University, New Damietta 34517 (Egypt); Department of Physics, College of Science, King Khalid University, P.O. 9004, Abha (Saudi Arabia); Al-Asbali, A. M., E-mail: aliaa-ma@hotmail.com [Department of Physics, College of Science for Girls in Abha, King Khalid University, Abha, P.O. 960 (Saudi Arabia)

2014-09-15T23:59:59.000Z

329

Improved measurement of brain deformation during mild head acceleration using a novel tagged MRI sequence  

Science Journals Connector (OSTI)

Abstract In vivo measurements of human brain deformation during mild acceleration are needed to help validate computational models of traumatic brain injury and to understand the factors that govern the mechanical response of the brain. Tagged magnetic resonance imaging is a powerful, noninvasive technique to track tissue motion in vivo which has been used to quantify brain deformation in live human subjects. However, these prior studies required from 72 to 144 head rotations to generate deformation data for a single image slice, precluding its use to investigate the entire brain in a single subject. Here, a novel method is introduced that significantly reduces temporal variability in the acquisition and improves the accuracy of displacement estimates. Optimization of the acquisition parameters in a gelatin phantom and three human subjects leads to a reduction in the number of rotations from 72 to 144 to as few as 8 for a single image slice. The ability to estimate accurate, well-resolved, fields of displacement and strain in far fewer repetitions will enable comprehensive studies of acceleration-induced deformation throughout the human brain in vivo.

Andrew K. Knutsen; Elizabeth Magrath; Julie E. McEntee; Fangxu Xing; Jerry L. Prince; Philip V. Bayly; John A. Butman; Dzung L. Pham

2014-01-01T23:59:59.000Z

330

Neurocognitive Function After (Chemo)-Radiotherapy for Head and Neck Cancer  

Science Journals Connector (OSTI)

Abstract Radical radiotherapy has a pivotal role in the treatment of head and neck cancer (HNC) and cures a significant proportion of patients while simultaneously sparing critical normal organs. Some patients treated with radical radiotherapy for HNC receive significant radiation doses to large volumes of brain tissue. In fact, intensity-modulated radiotherapy techniques for HNC have been associated with a net increase in irradiated brain volumes. The increasing use of chemoradiotherapy for HNC has additionally exposed this patient population to potential neurotoxicity due to cytotoxic drugs. Patients with HNC may be particularly at risk for adverse late brain effects after (chemo)-radiotherapy, such as impaired neurocognitive function (NCF), as risk factors for the development of HNC, such as smoking, excess alcohol consumption and poor diet, are also associated with impaired NCF. The relatively good survival rates with modern treatment for HNC, and exposure to multiple potentially neurotoxic factors, means that it is important to understand the impact of (chemo)-radiotherapy for HNC on NCF, and to consider what measures can be taken to minimise treatment-related neurotoxicity. Here, we review evidence relating to the late neurotoxicity of radical (chemo)-radiotherapy for HNC, with a focus on studies of NCF in this patient population.

L.C. Welsh; A.W. Dunlop; T. McGovern; D. McQuaid; J.A. Dean; S.L. Gulliford; S.A. Bhide; K.J. Harrington; C.M. Nutting; K.L. Newbold

2014-01-01T23:59:59.000Z

331

Head on collision of multi-solitons in an electron-positron-ion plasma having superthermal electrons  

SciTech Connect (OSTI)

The head-on collision and overtaking collision of four solitons in a plasma comprising superthermal electrons, cold ions, and Boltzmann distributed positrons are investigated using the extended Poincare-Lighthill-Kuo (PLK) together with Hirota's method. PLK method yields two separate Korteweg-de Vries (KdV) equations where solitons obtained from any KdV equation move along a direction opposite to that of solitons obtained from the other KdV equation, While Hirota's method gives multi-soliton solution for each KdV equation all of which move along the same direction where the fastest moving soliton eventually overtakes the other ones. We have considered here two soliton solutions obtained from Hirota's method. Phase shifts acquired by each soliton due to both head-on collision and overtaking collision are calculated analytically.

Roy, Kaushik, E-mail: kaushikbolpur@rediffmail.com [Beluti M. K. M. High School, P.O. Beluti, Birbhum, West Bengal 731301 (India); Chatterjee, Prasanta, E-mail: prasantachatterjee1@rediffmail.com; Roychoudhury, Rajkumar [Department of Mathematics, Siksha Bhavana Visva Bharati, Santiniketan 731235 (India)

2014-10-15T23:59:59.000Z

332

Report on a randomized trial comparing two forms of immobilization of the head for fractionated stereotactic radiotherapy  

SciTech Connect (OSTI)

Fractionated stereotactic radiotherapy (SRT) requires accurate and reproducible immobilization of the patient's head. This randomized study compared the efficacy of two commonly used forms of immobilization used for SRT. Two routinely used methods of immobilization, which differ in their approach to reproduce the head position from day to day, are the Gill-Thomas-Cosman (GTC) frame and the BrainLab thermoplastic mask. The GTC frame fixates on the patient's upper dentition and thus is in direct mechanical contact with the cranium. The BrainLab mask is a two-part masking system custom fitted to the front and back of the patient's head. After patients signed an IRB-approved informed consent form, eligible patients were randomized to either GTC frame or mask for their course of SRT. Patients were treated as per standard procedure; however, prior to each treatment a set of digital kilovolt images (ExacTrac, BrainLabAB, Germany) was taken. These images were fused with reference digitally reconstructed radiographs obtained from treatment planning CT to yield lateral, longitudinal, and vertical deviations of isocenter and head rotations about respective axes. The primary end point of the study was to compare the two systems with respect to mean and standard deviations using the distance to isocenter measure. A total of 84 patients were enrolled (69 patients evaluable with detailed positioning data). A mixed-effect linear regression and two-tiled t test were used to compare the distance measure for both the systems. There was a statistically significant (p<0.001) difference between mean distances for these systems, suggesting that the GTC frame was more accurate. The mean 3D displacement and standard deviations were 3.17+1.95 mm for mask and 2.00+1.04 mm for frame. Both immobilization techniques were highly effective, but the GTC frame was more accurate. To optimize the accuracy of SRT, daily kilovolt image guidance is recommended with either immobilization system.

Bednarz, Greg; Machtay, Mitchell; Werner-Wasik, Maria; Downes, Beverly; Bogner, Joachim; Hyslop, Terry; Galvin, James; Evans, James; Curran, Walter Jr.; Andrews, David [Department of Radiation Oncology, Kimmel Cancer Center of the Jefferson Medical College, Philadelphia, Pennsylvania 19107 (United States) and Department of Radiation Oncology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania 15232 (United States); Department of Radiation Oncology, Kimmel Cancer Center of the Jefferson Medical College, Philadelphia, Pennsylvania 19107 (United States); Department of Neurosurgery, Thomas Jefferson University, Philadelphia, Pennsylvania 19107 (United States); Department of Radiotherapy and Radiobiology, Medical University of Vienna, 1010 Vienna (Austria); Department of Biostatistics, Kimmel Cancer Center of the Jefferson Medical College, Philadelphia, Pennsylvania 19107 (United States); Department of Radiation Oncology, Kimmel Cancer Center of the Jefferson Medical College, Philadelphia, Pennsylvania 19107 (United States); Department of Neurosurgery, Thomas Jefferson University, Philadelphia, Pennsylvania 19107 (United States); Department of Radiation Oncology, Kimmel Cancer Center of the Jefferson Medical College, Philadelphia, Pennsylvania 19107 (United States) and Department of Radiation Oncology, Emory University, Atlanta, Georgia 30322 (United States); Department of Neurosurgery, Thomas Jefferson University, Philadelphia, Pennsylvania 19107 (United States)

2009-01-15T23:59:59.000Z

333

A Three-Year Prospective Study of Repeat Head Computed Tomography in Patients with Traumatic Brain Injury  

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Background A definitive consensus on the standardization of practice of a routine repeat head CT (RHCT) scan in patients with traumatic intracranial hemorrhage is lacking. We hypothesized that in examinable patients without neurologic deterioration, RHCT scan does not lead to neurosurgical intervention (craniotomy/craniectomy). Study Design This was a 3-year prospective cohort analysis of patients aged 18 years and older, without antiplatelet or anticoagulation therapy, presenting to our level 1 trauma center with intracranial hemorrhage on initial head CT and a follow-up RHCT. Neurosurgical intervention was defined by craniotomy/craniectomy. Neurologic deterioration was defined as altered mental status, focal neurologic deficits, and/or pupillary changes. Results A total of 1,129 patients were included. Routine RHCT was performed in 1,099 patients. The progression rate was 19.7% (216 of 1,099), with subsequent neurosurgical intervention in 4 patients. Four patients had an abnormal neurologic examination, with a Glasgow Coma Scale (GCS) of ?8 requiring intubation. Thirty patients had an RHCT secondary to neurologic deterioration; 53% (16 of 30) had progression on RHCT, of which 75% (12 of 16) required neurosurgical intervention. There was an association between deterioration in neurologic examination and need for neurosurgical intervention (odds ratio 3.98; 95% CI 1.7 to 9.1). The negative predictive value of a deteriorating neurologic examination in predicting the need for neurosurgical intervention was 100% in patients with GCS >8. Conclusions Routine repeat head CT scan is not warranted in patients with normal neurologic examination. Routine repeat head CT scan does not supplement the need for neurologic examination for determining management in patients with traumatic brain injury.

Bellal Joseph; Hassan Aziz; Viraj Pandit; Narong Kulvatunyou; Ammar Hashmi; Andrew Tang; Moutamn Sadoun; Terence OKeeffe; Gary Vercruysse; Donald J. Green; Randall S. Friese; Peter Rhee

2014-01-01T23:59:59.000Z

334

Effect of Pretreatment Anemia on Treatment Outcome of Concurrent Radiochemotherapy in Patients With Head and Neck Cancer  

SciTech Connect (OSTI)

Purpose: To investigate the effect of anemia on outcome of treatment with radiochemotherapy in patients with head-and-neck cancer. Methods and Materials: The data of 196 patients with Stage II-IV head-and-neck cancer treated with concomitant cisplatin-based radiochemotherapy were retrospectively reviewed. Anemia was defined according to World Health Organization criteria as hemoglobin <130 g/L in men and <120 g/L in women. Results: Fifty-three patients were classified as anemic, 143 as nonanemic. The 3-year local control rate of anemic and nonanemic patients was 72% and 85%, respectively (p = 0.01). The 3-year overall survival rate of anemic and nonanemic patients was 52% and 77%, respectively (p = 0.004). In multivariate analysis, anemia was the most significant predictor of local control (hazard ratio, 0.37, p = 0.009) and survival (hazard ratio, 0.47, p = 0.007). A dose-effect relationship was also found for local control (p = .04) and survival (0.04) when grouping by hemoglobin concentration: <120, 120-140, and >140 g/L. Conclusions: Anemia was strongly associated with local control and survival in this cohort of patients with head-and-neck cancer receiving radiochemotherapy.

Fortin, Andre [Department of Radiation Oncology, L'Hotel-Dieu de Quebec, Quebec (Canada)], E-mail: afortin@videotron.ca; Wang Changshu; Vigneault, Eric [Department of Radiation Oncology, L'Hotel-Dieu de Quebec, Quebec (Canada)

2008-09-01T23:59:59.000Z

335

Evaluation of energy deposition and secondary particle production in proton therapy of brain using a slab head phantom  

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AbstractAim Evaluation of energy deposition of protons in human brain and calculation of the secondary neutrons and photons produced by protons in proton therapy. Background Radiation therapy is one of the main methods of treating localized cancer tumors. The use of high energy proton beam in radiotherapy was proposed almost 60 years ago. In recent years, there has been a revival of interest in this subject in the context of radiation therapy. High energy protons suffer little angular deflection and have a well-defined penetration range, with a sharp increase in the energy loss at the end of their trajectories, namely the Bragg peak. Materials and methods A slab head phantom was used for the purpose of simulating proton therapy in brain tissue. In this study simulation was carried out using the Monte Carlo MCNPX code. Results By using mono energetic proton pencil beams, energy depositions in tissues, especially inside the brain, as well as estimating the neutron and photon production as a result of proton interactions in the body, together with their energy spectra, were calculated or obtained. The amount of energy escaped from the head by secondary neutrons and photons was determined. Conclusions It was found that for high energy proton beams the amount of escaped energy by neutrons is almost 10 times larger than that by photons. We estimated that at 110MeV beam energy, the overall proton energy leaked from the head by secondary photons and neutrons to be around 1%.

Sayyed Bijan Jia; Mohammad Hadi Hadizadeh; Ali Asghar Mowlavi; Mahdy Ebrahimi Loushab

2014-01-01T23:59:59.000Z

336

Installation of the Monitoring Site at the Los Alamos Canyon Low-Head Weir  

SciTech Connect (OSTI)

The Cerro Grande fire of 2000 had an enormously adverse impact on and around Los Alamos National Laboratory (LANL). Immediately there were concerns about the potential for enhanced runoff/offsite transport of contaminant-laden sediments because of watershed damage. In response to this concern, the U.S. Army Corps of Engineers installed a low-head weir in Los Alamos Canyon near the White Rock ''Y.'' However, the occurrence of fractured basalt at the surface and ponding of runoff behind the weir enhance the possibility of downward migration of contaminants. Therefore, three boreholes were drilled on the south bank of the channel by LANL to provide a means of monitoring the impact of the Cerro Grande fire and of the weir on water quality beneath the canyon. The boreholes and associated instrumentation are referred to as the Los Alamos Weir Site (LAWS). The three boreholes include a vertical hole and two angled holes (one at approximately 45{sup o} and one at approximately 30{sup o}). Since the basalt is highly fractured, the holes would not stay open. Plans called for inserting flexible liners into all holes. However, using liners in such unstable ground was problematic and, in the angled holes, required deployment through scalloped or perforated polyvinyl chloride (PVC) shield. The vertical hole (LAWS-01), drilled to a total depth of 281.5 ft below ground surface (bgs), was completed as a 278-ft deep monitoring well with four screens: one targeting shallow perched water encountered at 80 ft, two in what may correspond to the upper perched zone at regional groundwater characterization well R-9i (1/4 mi. to the west), and one in what may correspond to the lower perched zone at R-9i. A Water FLUTe{trademark} system deployed in the well isolates the screened intervals; associated transducers and sampling ports permit monitoring head and water quality in the screened intervals. The second hole (LAWS-02), drilled at an angle of 43{sup o} from horizontal, is 156 ft long and bottoms at a depth of 106 ft bgs. The shallow perched water seen at LAWS-01 (at 80 ft) was not encountered. A scalloped PVC shield was installed to keep the hole open while permitting flexible liners to contact the borehole wall. It was initially instrumented with a color-reactive liner to locate water-producing fractures. That was later replaced by an absorbent liner to collect water from the vadose zone. The third hole (LAWS-03), drilled at an angle of 34{sup o} from horizontal, initially had a length of 136 ft and bottomed at a depth of 76 ft bgs. However, the PVC shield rotated during installation such that scallops were at the top and rock debris repeatedly fell in, preventing liner insertion. While pulling the scalloped PVC to replace it with a perforated PVC shield that did not require orientation, the scalloped PVC broke and only 85 ft was recovered. The hole was blocked at that position and could not be drilled out with the equipment available. Thus, LAWS-03 was completed at a length of 85 ft and a depth of 40 ft bgs. An absorbent liner was installed at the outset in preparation for the 2002 summer monsoon season. The entire monitoring site is enclosed inside a locked, 8-ft-high chainlink fence for security. The liners used in the angled boreholes carry electrical wire pairs to detect soil-moisture changes. Surface-water data are provided by stream gages above and below the weir site. Depth of ponding behind the weir is provided by a gage installed just behind the structure.

W.J.Stone; D.L.Newell

2002-08-01T23:59:59.000Z

337

Impact of Schedule Duration on Head and Neck Radiotherapy: Accelerated Tumor Repopulation Versus Compensatory Mucosal Proliferation  

SciTech Connect (OSTI)

Purpose: To determine how modelled maximum tumor control rates, achievable without exceeding mucositis tolerance (tcp{sub max-early}) vary with schedule duration for head and neck squamous cell carcinoma (HNSCC). Methods and materials: Using maximum-likelihood techniques, we have fitted a range of tcp models to two HNSCC datasets (Withers' and British Institute of Radiology [BIR]), characterizing the dependence of tcp on duration and equivalent dose in 2 Gy fractions (EQD{sub 2}). Models likely to best describe future data have been selected using the Akaike information criterion (AIC) and its quasi-AIC extension to overdispersed data. Setting EQD{sub 2}s in the selected tcp models to levels just tolerable for mucositis, we have plotted tcp{sub max-early} against schedule duration. Results: While BIR dataset tcp fits describe dose levels isoeffective for tumor control as rising significantly with schedule protraction, indicative of accelerated tumor repopulation, repopulation terms in fits to Withers' dataset do not reach significance after accounting for overdispersion of the data. The tcp{sub max-early} curves calculated from tcp fits to the overall Withers' and BIR datasets rise by 8% and 0-4%, respectively, between 20 and 50 days duration; likewise, tcp{sub max-early} curves calculated for stage-specific cohorts also generally rise slowly with increasing duration. However none of the increases in tcp{sub max-early} calculated from the overall or stage-specific fits reach significance. Conclusions: Local control rates modeled for treatments which lie just within mucosal tolerance rise slowly but insignificantly with increasing schedule length. This finding suggests that whereas useful gains may be made by accelerating unnecessarily slow schedules until they approach early reaction tolerance, little is achieved by shortening schedules further while reducing doses to remain within mucosal tolerance, an approach that may slightly worsen outcomes.

Fenwick, John D., E-mail: john.fenwick@rob.ox.ac.uk [School of Cancer Studies, University of Liverpool, Liverpool L69 3GA (United Kingdom); Department of Physics, Clatterbridge Centre for Oncology, Wirral CH63 4JY (United Kingdom); Pardo-Montero, Juan [School of Cancer Studies, University of Liverpool, Liverpool L69 3GA (United Kingdom); Department of Physics, Clatterbridge Centre for Oncology, Wirral CH63 4JY (United Kingdom); Nahum, Alan E. [Department of Physics, Clatterbridge Centre for Oncology, Wirral CH63 4JY (United Kingdom); Malik, Zafar I. [Department of Clinical Oncology, Clatterbridge Centre for Oncology, Wirral CH63 4JY (United Kingdom)

2012-02-01T23:59:59.000Z

338

Primary Melanoma Location on the Scalp is an Important Risk Factor for Brain Metastasis: A Study of 1,687 Patients with Cutaneous Head and Neck Melanomas  

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Primary cutaneous head and neck melanomas (HNM) are reported ... to be associated with a higher incidence of brain metastasis than trunk and limb melanomas (TLM ... ). In this study, the incidence of brain metas...

Anna M. Huismans MD; Lauren E. Haydu BSCHE; MIPH

2014-11-01T23:59:59.000Z

339

Visualisation of the intact dura mater and brain surface in infant autopsies: a minimally destructive technique for the post-mortem assessment of head injury  

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During the post-mortem examination of babies and young children, it is important to be able to visualise the brain and its coverings, particularly in cases where a head injury is likely to have occurred. In ... t...

Emma C. Cheshire; Roger D. G. Malcomson

2014-11-01T23:59:59.000Z

340

Online 1H NMR Spectroscopic Study of the Reaction Kinetics in Mixtures of Acetaldehyde and Water Using a New Microreactor Probe Head  

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Mixtures of acetaldehyde and water are reactive multicomponent systems because poly(oxymethylmethylene) glycols are formed. A study on the kinetics of the formation of these oligomers was carried out using a new microreactor NMR probe head that combines ...

Andreas Scheithauer; Alexander Brcher; Thomas Grtzner; Daniel Zollinger; Werner R. Thiel; Erik von Harbou; Hans Hasse

2014-10-16T23:59:59.000Z

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
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341

Interactions between nano-spacing flying head sliders and ultra-thin liquid lubricant films with non-uniform distribution in hard disk drives  

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This paper describes the effect of ultra-thin liquid lubricant films on air bearing dynamics and flyability of less than 10nm spacing flying head sliders in hard disk drives. In particular, the effect of non-uni...

Norio Tagawa; Noritaka Yoshioka; Atsunobu Mori

2005-08-01T23:59:59.000Z

342

Corrected expression of the van der Waals pressure for multilayered system with application to analyses of static characteristics of flying head sliders with an ultrasmall spacing  

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The flying height of flying head sliders has rapidly decreased for higher recording densities in hard disk drives. In ultrasmall spacing sliders those flying height are less than about 10nm,...2002; Li et al. 20...

H. Matsuoka; S. Ohkubo; S. Fukui

2005-08-01T23:59:59.000Z

343

Proprioceptive Hair Cells on the Neck of the Squid Lolliguncula brevis: A Sense Organ in Cephalopods for the Control of Head-To-Body Position  

Science Journals Connector (OSTI)

...inputs, controls the position of the animal's head and body. | Marine Biomedical Institute, University of Texas Medical Branch, Galveston 77555-1163, USA. | Journal Article Research Support, Non-U.S. Gov't Research Support, U.S...

1995-01-01T23:59:59.000Z

344

The data this time will be the Motorcycle Acceleration Data: A data frame giving a series of measurements of head acceleration  

E-Print Network [OSTI]

Cosines The data this time will be the Motorcycle Acceleration Data: A data frame giving a series of measurements of head acceleration in a simulated motorcycle accident, used to test crash helmets. Usage: data

Zeng, Donglin

345

Validation that Metabolic Tumor Volume Predicts Outcome in Head-and-Neck Cancer  

SciTech Connect (OSTI)

Purpose: We have previously reported that metabolic tumor volume (MTV) obtained from pretreatment {sup 18}F-fluorodeoxydeglucose positron emission tomography (FDG PET)/ computed tomography (CT) predicted outcome in patients with head-and-neck cancer (HNC). The purpose of this study was to validate these results on an independent dataset, determine whether the primary tumor or nodal MTV drives this correlation, and explore the interaction with p16{sup INK4a} status as a surrogate marker for human papillomavirus (HPV). Methods and Materials: The validation dataset in this study included 83 patients with squamous cell HNC who had a FDG PET/CT scan before receiving definitive radiotherapy. MTV and maximum standardized uptake value (SUV{sub max}) were calculated for the primary tumor, the involved nodes, and the combination of both. The primary endpoint was to validate that MTV predicted progression-free survival and overall survival. Secondary analyses included determining the prognostic utility of primary tumor vs. nodal MTV. Results: Similarly to our prior findings, an increase in total MTV of 17 cm{sup 3} (difference between the 75th and 25th percentiles) was associated with a 2.1-fold increase in the risk of disease progression (p = 0.0002) and a 2.0-fold increase in the risk of death (p = 0.0048). SUV{sub max} was not associated with either outcome. Primary tumor MTV predicted progression-free (hazard ratio [HR] = 1.94; p < 0.0001) and overall (HR = 1.57; p < 0.0001) survival, whereas nodal MTV did not. In addition, MTV predicted progression-free (HR = 4.23; p < 0.0001) and overall (HR = 3.21; p = 0.0029) survival in patients with p16{sup INK4a}-positive oropharyngeal cancer. Conclusions: This study validates our previous findings that MTV independently predicts outcomes in HNC. MTV should be considered as a potential risk-stratifying biomarker in future studies of HNC.

Tang, Chad; Murphy, James D.; Khong, Brian; La, Trang H. [Department of Radiation Oncology, Stanford University, Stanford, CA (United States)] [Department of Radiation Oncology, Stanford University, Stanford, CA (United States); Kong, Christina [Department of Pathology, Stanford University, Stanford, CA (United States)] [Department of Pathology, Stanford University, Stanford, CA (United States); Fischbein, Nancy J. [Department of Radiology, Stanford University, Stanford, CA (United States)] [Department of Radiology, Stanford University, Stanford, CA (United States); Colevas, A. Dimitrios [Division of Medical Oncology, Department of Medicine, Stanford University, Stanford, CA (United States)] [Division of Medical Oncology, Department of Medicine, Stanford University, Stanford, CA (United States); Iagaru, Andrei H. [Department of Radiology, Stanford University, Stanford, CA (United States)] [Department of Radiology, Stanford University, Stanford, CA (United States); Graves, Edward E.; Loo, Billy W. [Department of Radiation Oncology, Stanford University, Stanford, CA (United States)] [Department of Radiation Oncology, Stanford University, Stanford, CA (United States); Le, Quynh-Thu, E-mail: qle@stanford.edu [Department of Radiation Oncology, Stanford University, Stanford, CA (United States)] [Department of Radiation Oncology, Stanford University, Stanford, CA (United States)

2012-08-01T23:59:59.000Z

346

Effectiveness of robust optimization in intensity-modulated proton therapy planning for head and neck cancers  

SciTech Connect (OSTI)

Purpose: Intensity-modulated proton therapy (IMPT) is highly sensitive to uncertainties in beam range and patient setup. Conventionally, these uncertainties are dealt using geometrically expanded planning target volume (PTV). In this paper, the authors evaluated a robust optimization method that deals with the uncertainties directly during the spot weight optimization to ensure clinical target volume (CTV) coverage without using PTV. The authors compared the two methods for a population of head and neck (H and N) cancer patients. Methods: Two sets of IMPT plans were generated for 14 H and N cases, one being PTV-based conventionally optimized and the other CTV-based robustly optimized. For the PTV-based conventionally optimized plans, the uncertainties are accounted for by expanding CTV to PTV via margins and delivering the prescribed dose to PTV. For the CTV-based robustly optimized plans, spot weight optimization was guided to reduce the discrepancy in doses under extreme setup and range uncertainties directly, while delivering the prescribed dose to CTV rather than PTV. For each of these plans, the authors calculated dose distributions under various uncertainty settings. The root-mean-square dose (RMSD) for each voxel was computed and the area under the RMSD-volume histogram curves (AUC) was used to relatively compare plan robustness. Data derived from the dose volume histogram in the worst-case and nominal doses were used to evaluate the plan optimality. Then the plan evaluation metrics were averaged over the 14 cases and were compared with two-sided paired t tests. Results: CTV-based robust optimization led to more robust (i.e., smaller AUCs) plans for both targets and organs. Under the worst-case scenario and the nominal scenario, CTV-based robustly optimized plans showed better target coverage (i.e., greater D{sub 95%}), improved dose homogeneity (i.e., smaller D{sub 5%}- D{sub 95%}), and lower or equivalent dose to organs at risk. Conclusions: CTV-based robust optimization provided significantly more robust dose distributions to targets and organs than PTV-based conventional optimization in H and N using IMPT. Eliminating the use of PTV and planning directly based on CTV provided better or equivalent normal tissue sparing.

Liu Wei; Li Xiaoqiang; Park, Peter C.; Ronald Zhu, X.; Mohan, Radhe [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States); Frank, Steven J. [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States); Li Yupeng [Varian Medical Systems, Inc., Palo Alto, California 94304 (United States); Dong Lei [Scripps Proton Center, San Diego, California 92121 (United States)

2013-05-15T23:59:59.000Z

347

The Residual Setup Errors of Different IGRT Alignment Procedures for Head and Neck IMRT and the Resulting Dosimetric Impact  

SciTech Connect (OSTI)

Purpose: To assess residual setup errors during head and neck radiation therapy and the resulting consequences for the delivered dose for various patient alignment procedures. Methods and Materials: Megavoltage cone beam computed tomography (MVCBCT) scans from 11 head and neck patients who underwent intensity modulated radiation therapy were used to assess setup errors. Each MVCBCT scan was registered to its reference planning kVCT, with seven different alignment procedures: automatic alignment and manual registration to 6 separate bony landmarks (sphenoid, left/right maxillary sinuses, mandible, cervical 1 [C1]-C2, and C7-thoracic 1 [T1] vertebrae). Shifts in the different alignments were compared with each other to determine whether there were any statistically significant differences. Then, the dose distribution was recalculated on 3 MVCBCT images per patient for every alignment procedure. The resulting dose-volume histograms for targets and organs at risk (OARs) were compared to those from the planning kVCTs. Results: The registration procedures produced statistically significant global differences in patient alignment and actual dose distribution, calling for a need for standardization of patient positioning. Vertically, the automatic, sphenoid, and maxillary sinuses alignments mainly generated posterior shifts and resulted in mean increases in maximal dose to OARs of >3% of the planned dose. The suggested choice of C1-C2 as a reference landmark appears valid, combining both OAR sparing and target coverage. Assuming this choice, relevant margins to apply around volumes of interest at the time of planning to take into account for the relative mobility of other regions are discussed. Conclusions: Use of different alignment procedures for treating head and neck patients produced variations in patient setup and dose distribution. With concern for standardizing practice, C1-C2 reference alignment with relevant margins around planning volumes seems to be a valid option.

Graff, Pierre [Department of Radiation-Oncology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California (United States) [Department of Radiation-Oncology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California (United States); Radiation-Oncology, Alexis Vautrin Cancer Center, Vandoeuvre-Les-Nancy (France); Doctoral School BioSE (EA4360), Nancy (France); Kirby, Neil [Department of Radiation-Oncology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California (United States)] [Department of Radiation-Oncology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California (United States); Weinberg, Vivian [Department of Radiation-Oncology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California (United States) [Department of Radiation-Oncology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California (United States); Department of Biostatistics, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California (United States); Chen, Josephine; Yom, Sue S. [Department of Radiation-Oncology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California (United States)] [Department of Radiation-Oncology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California (United States); Lambert, Louise [Department of Radiation-Oncology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California (United States) [Department of Radiation-Oncology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California (United States); Radiation-Oncology, Montreal University Centre, Montreal (Canada); Pouliot, Jean, E-mail: jpouliot@radonc.ucsf.edu [Department of Radiation-Oncology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California (United States)] [Department of Radiation-Oncology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California (United States)

2013-05-01T23:59:59.000Z

348

Risk, Outcomes, and Costs of Radiation-Induced Oral Mucositis Among Patients With Head-and-Neck Malignancies  

SciTech Connect (OSTI)

Purpose: To study the risk, outcomes, and costs of radiation-induced oral mucositis (OM) among patients receiving radiotherapy (RT) to head and neck primary cancers. Methods and Materials: A retrospective cohort consisting of 204 consecutive head-and-neck cancer patients who received RT with or without chemotherapy during 2002 was formed; their records were reviewed for clinical and resource use information. Patients who had received prior therapy, had second primary cancers, or received palliative radiation therapy were excluded. The risk of OM was analyzed by multiple variable logistic regression. The cost of care was computed from the provider's perspective in 2006 U.S. dollars and compared among patients with and without OM. Results: Oral mucositis occurred in 91% of patients; in 66% it was severe (Grade 3-4). Oral mucositis was more common among patients with oral cavity or oropharynx primaries (odds ratio [OR], 44.5; 95% confidence interval [CI], 5.2 to >100; p < 0.001), those who received chemotherapy (OR = 7.8; 95% CI, 1.5-41.6; p 0.02), and those who were treated with altered fractionation schedules (OR 6.3; 95% CI, 1.1-35.1; p = 0.03). Patients with OM were significantly more likely to have severe pain (54% vs. 6%; p < 0.001) and a weight loss of {>=}5% (60% vs. 17%; p < 0.001). Oral mucositis was associated with an incremental cost of $1700-$6000, depending on the grade. Conclusions: Head-and-neck RT causes OM in virtually all patients. Oral mucositis is associated with severe pain, significant weight loss, increased resource use, and excess cost. Preventive strategies are needed.

Elting, Linda S. [Section of Health Services Research, Department of Biostatistics, University of Texas M. D. Anderson Cancer Center, Houston, TX (United States)]. E-mail: lelting@mdanderson.org; Cooksley, Catherine D. [Section of Health Services Research, Department of Biostatistics, University of Texas M. D. Anderson Cancer Center, Houston, TX (United States); Chambers, Mark S. [Department of Dental Oncology, University of Texas M. D. Anderson Cancer Center, Houston, TX (United States); Garden, Adam S. [Department of Radiation Oncology, University of Texas M. D. Anderson Cancer Center, Houston, TX (United States)

2007-07-15T23:59:59.000Z

349

Long-Term Outcomes and Toxicity of Concurrent Paclitaxel and Radiotherapy for Locally Advanced Head-and-Neck Cancer  

SciTech Connect (OSTI)

Purpose: To report the long-term outcomes and toxicity of a regimen of infusion paclitaxel delivered concurrently with radiotherapy in patients with locally advanced squamous cell carcinoma of the head and neck. Patients and Methods: Between 1995 and 1999, 35 patients with nonmetastatic, Stage III or IV squamous cell carcinoma of the head and neck were treated with three cycles of paclitaxel as a 120-h continuous infusion beginning on Days 1, 21, and 42, concurrent with radiotherapy. The initial 16 patients received 105 mg/m{sup 2}/cycle, and the subsequent 19 patients received 120 mg/m{sup 2}/cycle. External beam radiotherapy was delivered to a dose of 70.2-72 Gy at five fractions weekly. Patients were followed to evaluate the disease outcomes and late toxicity of this regimen. Results: The median follow-up for all patients was 56.5 months. The median survival was 56.5 months, and the median time to local recurrence was not reached. Of the 35 patients, 15 (43%) developed hypothyroidism. Of the 33 patients who underwent percutaneous endoscopic gastrostomy tube placement, 11 were percutaneous endoscopic gastrostomy tube dependent until death or their last follow-up visit. Also, 5 patients (14%) required a tracheostomy until death, and 3 (9%) developed a severe esophageal stricture. All evaluated long-term survivors exhibited salivary hypofunction. Fibrosis in the radiation field occurred in 24 patients (69%). Conclusion: The results of our study have shown that concurrent chemoradiotherapy with a 120-h infusion of paclitaxel provides long-term local control and survival in patients with squamous cell carcinoma of the head and neck. Xerostomia, hypothyroidism, esophageal and pharyngeal complications, and subcutaneous fibrosis were common long-term toxicities; however, the vast majority of toxicities were grade 1 or 2.

Citrin, Deborah [Radiation Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD (United States)], E-mail: citrind@mail.nih.gov; Mansueti, John; Likhacheva, Anna; Sciuto, Linda [Radiation Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD (United States); Albert, Paul S. [Biometric Research Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD (United States); Rudy, Susan F. [Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, MD (United States); Cooley-Zgela, Theresa [Radiation Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD (United States); Cotrim, Ana [National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD (United States); Solomon, Beth [Speech Language Pathology Section, Rehabilitation Medicine Department, National Institutes of Health, Bethesda, MD (United States); Colevas, A. Dimitrios [Head and Neck Oncology Program, Stanford Cancer Center, Stanford University, Stanford, CA (United States); Russo, Angelo [Radiation Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD (United States); Morris, John C. [Metabolism Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD (United States); Herscher, Laurie [Department of Radiation Oncology, Suburban Hospital, Bethesda, MD (United States); Smith, Sharon [Radiation Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD (United States)] (and others)

2009-07-15T23:59:59.000Z

350

Interface technology of ultra-low flying height and highly stable headdisk interface for perpendicular magnetic recording  

Science Journals Connector (OSTI)

This paper reports authors efforts in slider and interface technologies with extremely small and very high stability headdisk spacing. The dual shallow step strategy is proposed in the femto form-factor slider design. It is found that the dual shallow step design is very effective in reducing flying height modulation (FHM) caused by disk waviness and enhancing the cooling effects on the read/write elements. A simple geometric model is built to explain the schematic of the improvement in FHM.

Hui Li; Jin Liu; Bo Liu; Mingsheng Zhang; Leonard Gonzaga; Tow-Chong Chong

2007-01-01T23:59:59.000Z

351

A study of the morphology and anatomy of a strain of seed producing great-headed garlic (Allium ampeloprasum L.  

E-Print Network [OSTI]

of these cells finally lignify and form a layer termed endodermis. This endo- dermis is continuous with the endodersd. s of the adven- titious roots. The endodermal layer observed in the stem of great- headed garlic was not as pronounced as that reported... by Mann (20) in common gax lie; although the layer of ligni- fied oells was px'esent and continuous with the adventi? tious root endodermis. The presence of an endodermal layer in onion stem has been described by Mann (20), but Hoffman (14, ) did...

Fuqua, Mack Charles

2012-06-07T23:59:59.000Z

352

Clinical Management of Salivary Gland Hypofunction and Xerostomia in Head-and-Neck Cancer Patients: Successes and Barriers  

SciTech Connect (OSTI)

The most significant long-term complication of radiotherapy in the head-and-neck region is hyposalivation and its related complaints, particularily xerostomia. This review addresses the pathophysiology underlying irradiation damage to salivary gland tissue, the consequences of radiation injury, and issues contributing to the clinical management of salivary gland hypofunction and xerostomia. These include ways to (1) prevent or minimize radiation injury of salivary gland tissue, (2) manage radiation-induced hyposalivation and xerostomia, and (3) restore the function of salivary gland tissue damaged by radiotherapy.

Vissink, Arjan [Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, University of Groningen, Grongingen (Netherlands); Mitchell, James B. [Radiation Biology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD (United States); Baum, Bruce J. [Molecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD (United States); Limesand, Kirsten H. [Department of Nutritional Sciences, University of Arizona, Tucson, AZ (United States); Jensen, Siri Beier [Department of Oral Medicine, Institute of Odontology, Faculty of Health Sciences, University of Copenhagen, Copenhagen (Denmark); Fox, Philip C. [PC Fox Consulting, Spello (Italy); Elting, Linda S. [Department of Biostatistics, University of Texas M. D. Anderson Cancer Center, Houston, TX (United States); Langendijk, Johannes A. [Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen (Netherlands); Coppes, Robert P. [Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen (Netherlands); Department of Cell Biology, Section of Radiation and Stress Biology, University Medical Center Groningen, University of Groningen, Groningen (Netherlands); Reyland, Mary E., E-mail: Mary.Reyland@UCDenver.ed [Department of Craniofacial Biology, University of Colorado Denver, Aurora, CO (United States)

2010-11-15T23:59:59.000Z

353

First measurement of the Head-Tail directional nuclear recoil signature at energies relevant to WIMP dark matter searches  

E-Print Network [OSTI]

We present first evidence for the so-called Head-Tail asymmetry signature of neutron-induced nuclear recoil tracks at energies down to 1.5 keV/amu using the 1m^3 DRIFT-IIc dark matter detector. This regime is appropriate for recoils induced by Weakly Interacting Massive Particle (WIMPs) but one where the differential ionization is poorly understood. We show that the distribution of recoil energies and directions induced here by Cf-252 neutrons matches well that expected from massive WIMPs. The results open a powerful new means of searching for a galactic signature from WIMPs.

S. Burgos; E. Daw; J. Forbes; C. Ghag; M. Gold; C. Hagemann; V. A. Kudryavtsev; T. B. Lawson; D. Loomba; P. Majewski; D. Muna; A. StJ. Murphy; G. G. Nicklin; S. M. Paling; A. Petkov; S. J. S. Plank; M. Robinson; N. Sanghi; D. P. Snowden-Ifft; N. J. C. Spooner; J. Turk; E. Tziaferi

2008-09-10T23:59:59.000Z

354

Smolt Monitoring at the Head of Lower Granite Reservoir and Lower Granite Dam, 1998 Annual Report.  

SciTech Connect (OSTI)

This project monitored the daily passage of chinook salmon Oncorhynchus tshawytscha, steelhead trout O. mykiss, and sockeye salmon smolts O. nerka, during the 1998 spring outmigration at migrant traps on the Snake and Salmon rivers. All hatchery chinook salmon released above Lower Granite Dam 19 1998 were marked with a fin-clip. Total annual hatchery chinook salmon catch at the Snake River trap was 226% of the 1997 number and 110% of the 1996 catch. The wild chinook catch was 120% of the 1997 catch but was only 93% of 1996. Hatchery steelhead trout catch was 501% of 1997 numbers but only 90% of the 1996 numbers. Wild steelhead trout catch was 569% of 1997 and 125% of the 1996 numbers. The Snake River trap collected 106 age-0 chinook salmon. During 1998, for the first time, the Snake River trap captured a significant number of hatchery sockeye salmon (1,552) and hatchery coho salmon O. kisutch (166). Differences in trap catch between years are due to fluctuations not only in smolt production, but also differences in trap efficiency and duration of trap operation associated with high flows. Trap operations began on March 8 and were terminated for the season due to high flows on June 12. The trap was out of operation for 34 d during the season due to high flow and debris. Hatchery chinook salmon catch at the Salmon River trap was 476% and wild chinook salmon catch was 137% of 1997 numbers and 175% and 82% of 1996 catch, respectively. The hatchery steelhead trout collection in 1998 was 96% of the 1997 catch and 13% of the 1996 numbers. Wild steelhead trout collection in 1998 was 170% of the 1997 catch and 37% of the 1996 numbers. Travel time (d) and migration rate (km/d) through Lower Granite Reservoir for PIT-tagged chinook salmon and steelhead trout, marked at the head of the reservoir were affected by discharge. For fish tagged at the Snake River trap, statistical analysis of 1998 detected a significant relation between migration rate and discharge. For hatchery and wild chinook salmon there was a 2.0- and 2.6-fold increase in migration rate, respectively, between 50 and 100 thousands of cubic feet per second (kcfs). For hatchery steelhead trout there was a 2.6-fold increase in migration rate between 50 kcfs and 100 kcfs. For fish marked at the Salmon River trap, statistical analysis of the 1998 data detected a significant relation between migration rate and discharge for hatchery and wild chinook salmon hatchery and found a 3.3- and 2.6-fold increase in migration rate, respectively, between 50 and 100 kcfs. A significant relation between migration rate and discharge was not detected for hatchery steelhead trout. Insufficient numbers of wild steelhead trout were PIT-tagged at the Salmon River trap to estimate travel time and migration rate to Lower Granite Dam.

Buettner, Edwin W.; Brimmer, Arnold F.

2000-04-01T23:59:59.000Z

355

Particle-in-cell simulation of the head-on collision between two ion acoustic solitary waves in plasmas  

SciTech Connect (OSTI)

The head-on collision of two ion acoustic solitary waves in plasmas composed of hot electrons and cold ions has been studied by using the Poincare-Lighthill-Kuo (PLK) perturbation method and one-dimensional Particle-in-Cell (PIC) simulation. Then the phase lags of ion acoustic solitary waves (IASWs) obtained from the two approaches have been compared and discussed. It has been found that: if the amplitudes of both the colliding IASWs are small enough, the phase lags obtained from PLK method are in good agreement with those obtained from PIC simulation. As the amplitudes of IASWs increase, the phase lags from PIC simulation become smaller than the analytical ones from PLK method. Besides, the PIC simulation shows the phase lag of an IASW involved in collision depends not only on the characteristics of the wave it collides with but also on itself, which disagrees with the prediction of the PLK method. Finally, the application scopes of the PLK method in studying both the single IASW and the head-on collisions of IASWs have been studied and discussed, and the latter turns out to be more strict.

Qi, Xin; Xu, Yan-xia; Duan, Wen-shan, E-mail: duanws@nwnu.edu.cn, E-mail: lyang@impcas.ac.cn [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China and Joint Laboratory of Atomic and Molecular Physics of NWNU and IMP CAS, Northwest Normal University, Gansu, Lanzhou 730070 (China); Zhang, Ling-yu [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China and Joint Laboratory of Atomic and Molecular Physics of NWNU and IMP CAS, Northwest Normal University, Gansu, Lanzhou 730070 (China); University of Chinese Academy of Sciences, Beijing 100049 (China); Yang, Lei, E-mail: duanws@nwnu.edu.cn, E-mail: lyang@impcas.ac.cn [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China and Joint Laboratory of Atomic and Molecular Physics of NWNU and IMP CAS, Northwest Normal University, Gansu, Lanzhou 730070 (China); Department of Physics, Lanzhou University, Lanzhou 730000 (China)

2014-08-15T23:59:59.000Z

356

Temperaturefriction characteristics of used lubricant from two-stroke cross-head marine diesel engines  

Science Journals Connector (OSTI)

It is now quite apparent that, in a two-stroke, cross-head marine diesel engine, the lubrication regime in the contact between piston ring and cylinder liner at the top dead centre (TDC) is of a boundary type. Therefore, the tribological performance of a system to simulate the real contact should be assessed under conditions closely resembling the operating engine environment. In the reality of engine operation, the lubricant is often contaminated by fuel and products of combustion, hence the need to study the temperaturefriction characteristics of this actual lubricant under the conditions of boundary lubrication. In this paper, an oil taken from the drainage system of the engine was used. A five times heating and cooling test methodology was employed to assess tribological performance of a model contact lubricated with the actual oil. The model contact was formed by a pin sliding over a plate both made of materials used in two-stroke, cross-head marine diesel engines. Experiments showed that the general trend in temperaturefriction characteristics of the used oil is similar to that of a new oil. However, the level of friction in the contact lubricated with an used oil is significantly higher than that for a new oil.

T.A Stolarski; Q Zhou

2002-01-01T23:59:59.000Z

357

Phosphorylation and the N-terminal extension of the regulatory light chain help orient and align the myosin heads in Drosophila flight muscle  

SciTech Connect (OSTI)

X-ray diffraction of the indirect flight muscle (IFM) in living Drosophila at rest and electron microscopy of intact and glycerinated IFM was used to compare the effects of mutations in the regulatory light chain (RLC) on sarcomeric structure. Truncation of the RLC N-terminal extension (Dmlc2{sup {Delta}2-46}) or disruption of the phosphorylation sites by substituting alanines (Dmlc2{sup S66A, S67A}) decreased the equatorial intensity ratio (I{sub 20}/I{sub 10}), indicating decreased myosin mass associated with the thin filaments. Phosphorylation site disruption (Dmlc2{sup S66A, S67A}), but not N-terminal extension truncation (Dmlc2{sup {Delta}2-46}), decreased the 14.5 nm reflection intensity, indicating a spread of the axial distribution of the myosin heads. The arrangement of thick filaments and myosin heads in electron micrographs of the phosphorylation mutant (Dmlc2{sup S66A, S67A}) appeared normal in the relaxed and rigor states, but when calcium activated, fewer myosin heads formed cross-bridges. In transgenic flies with both alterations to the RLC (Dmlc2{sup {Delta}2-46; S66A, S67A}), the effects of the dual mutation were additive. The results suggest that the RLC N-terminal extension serves as a 'tether' to help pre-position the myosin heads for attachment to actin, while phosphorylation of the RLC promotes head orientations that allow optimal interactions with the thin filament.

Farman, Gerrie P.; Miller, Mark S.; Reedy, Mary C.; Soto-Adames, Felipe N.; Vigoreaux, Jim O.; Maughan, David W.; Irving, Thomas C.; (IIT); (Vermont); (Duke)

2010-02-02T23:59:59.000Z

358

High-resolution single photon planar and spect imaging of brain and neck employing a system of two co-registered opposed gamma imaging heads  

DOE Patents [OSTI]

A compact, mobile, dedicated SPECT brain imager that can be easily moved to the patient to provide in-situ imaging, especially when the patient cannot be moved to the Nuclear Medicine imaging center. As a result of the widespread availability of single photon labeled biomarkers, the SPECT brain imager can be used in many locations, including remote locations away from medical centers. The SPECT imager improves the detection of gamma emission from the patient's head and neck area with a large field of view. Two identical lightweight gamma imaging detector heads are mounted to a rotating gantry and precisely mechanically co-registered to each other at 180 degrees. A unique imaging algorithm combines the co-registered images from the detector heads and provides several SPECT tomographic reconstructions of the imaged object thereby improving the diagnostic quality especially in the case of imaging requiring higher spatial resolution and sensitivity at the same time.

Majewski, Stanislaw (Yorktown, VA); Proffitt, James (Newport News, VA)

2011-12-06T23:59:59.000Z

359

Comparison of Quantitative EEG to current clinical decision rules for Head CT use in acute mild traumatic brain injury in the ED  

Science Journals Connector (OSTI)

Abstract Study Objective We compared the performance of a hand-held Quantitative Electroencephalogram (QEEG) acquisition device to New Orleans Criteria (NOC), Canadian CT Head Rule (CCHR) and National Emergency X-Radiography Utilization Study II (NEXUS II) Rule in predicting intracranial lesions on Head CT in acute mild traumatic brain injury (TBI) in the Emergency Department (ED). Methods Patients between 18-80 years of age who presented to the ED with acute blunt head trauma were enrolled in this prospective observational study at two urban academic \\{EDs\\} in Detroit, Michigan. Data was collected for 10minutes from frontal leads to determine a QEEG discriminant score that could maximally classify intracranial lesions on Head CT. Results: 152 patients were enrolled from July 2012 to February 2013. 17.1% had acute traumatic intracranial lesions on Head CT. QEEG discriminant score of ?31 was found to be a good cut-off (AUC=0.84, 95% CI 0.76-0.93) to classify patients with positive head CT. The sensitivity of QEEG discriminant score was 92.3 (95% CI 73.4-98.6) while the specificity was 57.1 (95% CI 48.0-65.8). The sensitivity and specificity of the decision rules were as follows: NOC 96.1 (95% CI 78.4-99.7) and 15.8 (95% CI 10.1-23.6); CCHR 46.1 (95% CI 27.1-66.2) and 86.5 (95% CI 78.9-91.7); NEXUS II 96.1 (95% CI 78.4-99.7) and 31.7 (95% CI 23.9-40.7). Conclusion At a sensitivity of greater than 90%, QEEG discriminant score had better specificity than NOC and NEXUS II. Only CCHR had better specificity than QEEG discriminant score but at the cost of low (<50%) sensitivity.

Syed Imran Ayaz; Craig Thomas; Andrew Kulek; Rosa Tolomello; Valerie Mika; Duane Robinson; Patrick Medado; Claire Pearson; Leslie S. Prichep; Brian J. ONeil

2014-01-01T23:59:59.000Z

360

Evaluation of surface and superficial dose for head and neck treatments using conventional or intensity-modulated techniques  

Science Journals Connector (OSTI)

With increased use of intensity-modulated radiation therapy (IMRT) for head and neck treatment questions have arisen as to selection of an optimum treatment approach when either superficial sparing or treatment is desired. Other work has pointed out the increased superficial dose resulting from obliquity effects when multiple tangential beams are applied to head and neck treatment, as is the general case in IMRT planning. Helical tomotherapy might be expected to result in even further enhanced superficial dose compared with conventional bilateral field treatment. We have designed a typical right oropharynx target volume in an anthropomorphic head and neck phantom. Three different treatment techniques have been used to optimally treat this target, including bilateral static fields, eight-field IMRT and helical tomotherapy. The phantom was immobilized in a standard treatment position and treated on a Varian 2300cd linear accelerator and on a Hi-Art Helical Tomotherapy unit. 1 mm3 lithium-fluoride thermoluminescent dosimeters (TLDs) were placed on the surface of the phantom at a number of axial test positions. Film strips (Kodak EDR2) were either wrapped around the surface or sandwiched within the phantom. Measured doses at the surface and as a function of depth are compared with the planning system predictions for each treatment technique. The maximum surface doses on the proximal treatment side, averaged from TLDs and films, were measured to be 69?82% of the target dose with the bilateral fields yielding the lowest surface doses (69%), tomotherapy about 2% more than that (71%) and IMRT 13% more (82%). Anterior to the target volume, doses are always low for bilateral treatment. In this case the minimum anterior surface dose (chin area) was 6% of the prescription dose from that technique as compared with 26% and 35% from the IMRT and tomotherapy methods, respectively. The Eclipse and Tomotherapy planning systems both modelled deep and superficial doses well. Surface doses were better modelled by Eclipse at the test points, while the tomotherapy plans consistently overestimated the measured doses by 10% or more. Depth dose measurements, extracted from embedded films, indicated the depth of dose build-up to >99% to be the shallowest for IMRT (2?5 mm) followed by tomotherapy (5?8 mm) and bilateral fields (10?15 mm). The amount of surface dose is clearly technique dependent and should be taken into account in the planning stage.

P D Higgins; E Y Han; J L Yuan; S Hui; C K Lee

2007-01-01T23:59:59.000Z

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361

Speakers: Glen Sweetnam, EIA Michelle Michot Foss, Chief Energy Economist and Head, Center for Energy Economics, Bureau of  

U.S. Energy Information Administration (EIA) Indexed Site

7: "Natural Gas: U.S. Markets in a Global Context" 7: "Natural Gas: U.S. Markets in a Global Context" Speakers: Glen Sweetnam, EIA Michelle Michot Foss, Chief Energy Economist and Head, Center for Energy Economics, Bureau of Economic Geology, Jackson School of Geosciences, University of Texas Benjamin Schlesinger, Benjamin Schlesinger and Associates, Inc. Andrew Slaughter, Shell [Note: Recorders did not pick up introduction of panel (see biographies for details on the panelists) or introduction of session.] Glenn: Let me welcome you to the Natural Gas Session. This is the only session in this conference that's devoted exclusively to natural gas [laughs]. I'm Glenn Sweetnam and I'm with the Energy Information Administration, and we're very fortunate this morning to have 3 very astute and long-time observers of the natural gas market to

362

MEMORANDUM FOR HEADS OF FEDERAL DEPARTMENTS AND AGENCIES FROM: NANCY H. SUTLEY, Chair, Council on Environmental Quality  

Broader source: Energy.gov (indexed) [DOE]

February 18, 2010 February 18, 2010 MEMORANDUM FOR HEADS OF FEDERAL DEPARTMENTS AND AGENCIES FROM: NANCY H. SUTLEY, Chair, Council on Environmental Quality SUBJECT: DRAFT NEPA GUIDANCE ON CONSIDERATION OF THE EFFECTS OF CLIMATE CHANGE AND GREENHOUSE GAS EMISSIONS I. INTRODUCTION The Council on Environmental Quality (CEQ) provides this draft guidance memorandum for public consideration and comment on the ways in which Federal agencies can improve their consideration of the effects of greenhouse gas (GHG) emissions 1 and climate change in their evaluation of proposals for Federal actions under the National Environmental Policy Act (NEPA), 42 U.S.C. §§ 4321 et seq. This draft guidance is intended to help explain how agencies of the Federal government should analyze the

363

Experimental characterization of a transition from collisionless to collisional interaction between head-on-merging supersonic plasma jets  

E-Print Network [OSTI]

We present results from experiments on the head-on merging of two supersonic plasma jets in an initially collisionless regime for the counter-streaming ions [A. L. Moser & S. C. Hsu, Phys. Plasmas, submitted (2014)]. The plasma jets are of either an argon/impurity or hydrogen/impurity mixture and are produced by pulsed-power-driven railguns. Based on time- and space-resolved fast-imaging, multi-chord interferometry, and survey-spectroscopy measurements of the overlapping region between the merging jets, we observe that the jets initially interpenetrate, consistent with calculated inter-jet ion collision lengths, which are long. As the jets interpenetrate, a rising mean-charge state causes a rapid decrease in the inter-jet ion collision length. Finally, the interaction becomes collisional and the jets stagnate, eventually producing structures consistent with collisional shocks. These experimental observations can aid in the validation of plasma collisionality and ionization models for plasmas with complex ...

Moser, A L

2014-01-01T23:59:59.000Z

364

Confined blasts, and the impact of shock wave reflections on a human head and the related traumatic brain injury  

Science Journals Connector (OSTI)

We examine the effects of blast waves in a confined space on a human head model. A finite element human model (FEHM) is exposed to blast waves from explosions, as well as, to the reflected waves from the confinement walls. The intensity of the travelling blast shock waves is measured computationally and compared with experimental results. We monitor the mechanical response of the brain of the FEHM at different stand-off positions, either close to, or away from the surrounding walls in interaction with the travelling blast waves. The skull pressure, brain intracranial pressure (ICP), acceleration, shear stress, and principal stresses and strains are measured as the biomechanical parameters for injury diagnosis and compared for all the situations and stand-off positions considered. The results illustrate that the additional reflected shock waves due to the surrounding walls can dramatically change the brain biomechanical parameters.

Asghar Rezaei; Mehdi Salimi Jazi; Samad Javid; Ghodrat Karami; Mariusz Ziejewski

2014-01-01T23:59:59.000Z

365

Reduced 30% scanning time 3D multiplexer integrated circuit applied to large array format 20KHZ frequency inkjet print heads  

E-Print Network [OSTI]

Enhancement of the number and array density of nozzles within an inkjet head chip is one of the keys to raise the printing speed and printing resolutions. However, traditional 2D architecture of driving circuits can not meet the requirement for high scanning speed and low data accessing points when nozzle numbers greater than 1000. This paper proposes a novel architecture of high-selection-speed three-dimensional data registration for inkjet applications. With the configuration of three-dimensional data registration, the number of data accessing points as well as the scanning lines can be greatly reduced for large array inkjet printheads with nozzles numbering more than 1000. This IC (Integrated Circuit) architecture involves three-dimensional multiplexing with the provision of a gating transistor for each ink firing resistor, where ink firing resistors are triggered only by the selection of their associated gating transistors. Three signals: selection (S), address (A), and power supply (P), are employed toge...

Liou, J -C

2008-01-01T23:59:59.000Z

366

Theoretical study of head-on collision of dust acoustic solitary waves in a strongly coupled complex plasma  

SciTech Connect (OSTI)

We investigate the propagation characteristics of two counter propagating dust acoustic solitary waves (DASWs) undergoing a head-on collision, in the presence of strong coupling between micron sized charged dust particles in a complex plasma. A coupled set of nonlinear dynamical equations describing the evolution of the two DASWs using the extended Poincar-Lighthill-Kuo perturbation technique is derived. The nature and extent of post collision phase-shifts of these solitary waves are studied over a wide range of dusty plasma parameters in a strongly and a weakly coupled medium. We find a significant change in the nature and amount of phase delay in the strongly coupled regime as compared to a weakly coupled regime. The phase shift is seen to change its sign beyond a threshold value of compressibility of the medium for a given set of dusty plasma parameters.

Jaiswal, S., E-mail: surabhi@ipr.res.in; Bandyopadhyay, P.; Sen, A. [Institute for Plasma Research, Bhat, Gandhinagar, Gujarat 382428 (India)

2014-05-15T23:59:59.000Z

367

Tilting for perfusion: Head-up position during cardiopulmonary resuscitation improves brain flow in a porcine model of cardiac arrest  

Science Journals Connector (OSTI)

AbstractIntroduction Cerebral perfusion is compromised during cardiopulmonary resuscitation (CPR). We hypothesized that beneficial effects of gravity on the venous circulation during CPR performed in the head-up tilt (HUT) position would improve cerebral perfusion compared with supine or head-down tilt (HDT). Methods Twenty-two pigs were sedated, intubated, anesthetized, paralyzed and placed on a tilt table. After 6min of untreated ventricular fibrillation (VF) CPR was performed on 14 pigs for 3min with an automated CPR device called LUCAS (L) plus an impedance threshold device (ITD), followed by 5min of L-CPR+ITD at 0 supine, 5min at 30 HUT, and then 5min at 30 HDT. Microspheres were used to measure organ blood flow in 8 pigs. L-CPR+ITD was performed on 8 additional pigs at 0, 20, 30, 40, and 50 HUT. Results Coronary perfusion pressure was 192mmHg at 0 vs. 303 at 30 HUT (pBrainblood flow was 0.190.04mlmin?1g?1 at 0 vs. 0.270.04 at 30 HUT (p=0.01) and 0.140.06 at 30 HDT (p=0.16). Heart blood flow was not significantly different between interventions. With 0, 10, 20, 30, 40 and 50 HUT, ICP values were 212, 162, 102, 52, 02, ?52 respectively, (pbrain flow whereas HUT significantly lowered ICP and improved cerebral perfusion. Further studies are warranted to explore this new resuscitation concept.

Guillaume Debaty; Sang Do Shin; Anja Metzger; Taeyun Kim; Hyun Ho Ryu; Jennifer Rees; Scott McKnite; Timothy Matsuura; Michael Lick; Demetris Yannopoulos; Keith Lurie

2014-01-01T23:59:59.000Z

368

Yahoo! News -EU research chief to head to Japan next week to discu... http://news.yahoo.com/news?tmpl=story&cid=1540&u=/afp/200504... 1 of 1 4/7/05 11:34 AM  

E-Print Network [OSTI]

Yahoo! News - EU research chief to head to Japan next week to discu... http://news.yahoo.com/news users. News Home - Help EU research chief to head to Japan next week to discuss ITER 1 hour, 8 minutes reserved. The information contained in the AFP News report may not be published, broadcast, rewritten

369

20 Years of Four HCI Conferences: A Visual Exploration 1 Running head: 20 YEARS OF FOUR HCI CONFERENCES: A VISUAL EXPLORATION  

E-Print Network [OSTI]

with the exploration process that produced them. Some expected patterns emerged, such as that -- like most social20 Years of Four HCI Conferences: A Visual Exploration 1 Running head: 20 YEARS OF FOUR HCI CONFERENCES: A VISUAL EXPLORATION 20 Years of Four HCI Conferences: A Visual Exploration Nathalie Henry INRIA

Paris-Sud XI, Université de

370

Common Data Set 2011-2012 J Column heading for CIP categories to include now reads: CIP 2010 Categories to Include  

E-Print Network [OSTI]

Common Data Set 2011-2012 J Column heading for CIP categories to include now reads: CIP 2010 Categories to Include J CIP category 3 description now reads: Natural resources and conservation J CIP category 5 description now reads: Area, ethnic, and gender studies J CIP category 16 description now reads

371

Running Head: WHAT ARE LEARNING MANAGEMENT SYSTEMS 1 An Argument for Clarity: What are Learning Management Systems, What are They Not,  

E-Print Network [OSTI]

Running Head: WHAT ARE LEARNING MANAGEMENT SYSTEMS 1 An Argument for Clarity: What are Learning Management Systems, What are They Not, and What Should They Become? William R. Watson Indiana University. Indianapolis, IN 46234 Keywords: Course Management Systems, E-learning, Integrated Learning System, Learning

Paris-Sud XI, Université de

372

Tri-state dynamic model and adhesive effects on flying-height modulation for ultra-low flying head disk interfaces  

Science Journals Connector (OSTI)

Physical spacing between a flying slider and a rotating disk is projected to be 3 nm in...2. In such ultra-low flying-height regimes, two imminent obstacles that need to be overcome are intermittent head/disk con...

S. C. Lee; A. A. Polycarpou

2004-11-01T23:59:59.000Z

373

Running head: IDENTIFYINFG SOCIAL TMX AND TASK TMX PROCESSES 1 An Identification and Illustration of the Social TMX and Task TMX Processes  

E-Print Network [OSTI]

processes are interrelated so that one may directly facilitate the other. Furthermore, an illustrationRunning head: IDENTIFYINFG SOCIAL TMX AND TASK TMX PROCESSES 1 An Identification and Illustration of the Social TMX and Task TMX Processes Samantha Esmeralda Korenhof University of Twente #12;IDENTIFYINFG

Vellekoop, Michel

374

Normal Tissue Complication Probability Modeling of Radiation-Induced Hypothyroidism After Head-and-Neck Radiation Therapy  

SciTech Connect (OSTI)

Purpose: To determine the dose-response relationship of the thyroid for radiation-induced hypothyroidism in head-and-neck radiation therapy, according to 6 normal tissue complication probability models, and to find the best-fit parameters of the models. Methods and Materials: Sixty-five patients treated with primary or postoperative radiation therapy for various cancers in the head-and-neck region were prospectively evaluated. Patient serum samples (tri-iodothyronine, thyroxine, thyroid-stimulating hormone [TSH], free tri-iodothyronine, and free thyroxine) were measured before and at regular time intervals until 1 year after the completion of radiation therapy. Dose-volume histograms (DVHs) of the patients' thyroid gland were derived from their computed tomography (CT)-based treatment planning data. Hypothyroidism was defined as increased TSH (subclinical hypothyroidism) or increased TSH in combination with decreased free thyroxine and thyroxine (clinical hypothyroidism). Thyroid DVHs were converted to 2 Gy/fraction equivalent doses using the linear-quadratic formula with {alpha}/{beta} = 3 Gy. The evaluated models included the following: Lyman with the DVH reduced to the equivalent uniform dose (EUD), known as LEUD; Logit-EUD; mean dose; relative seriality; individual critical volume; and population critical volume models. The parameters of the models were obtained by fitting the patients' data using a maximum likelihood analysis method. The goodness of fit of the models was determined by the 2-sample Kolmogorov-Smirnov test. Ranking of the models was made according to Akaike's information criterion. Results: Twenty-nine patients (44.6%) experienced hypothyroidism. None of the models was rejected according to the evaluation of the goodness of fit. The mean dose model was ranked as the best model on the basis of its Akaike's information criterion value. The D{sub 50} estimated from the models was approximately 44 Gy. Conclusions: The implemented normal tissue complication probability models showed a parallel architecture for the thyroid. The mean dose model can be used as the best model to describe the dose-response relationship for hypothyroidism complication.

Bakhshandeh, Mohsen [Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran (Iran, Islamic Republic of)] [Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran (Iran, Islamic Republic of); Hashemi, Bijan, E-mail: bhashemi@modares.ac.ir [Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran (Iran, Islamic Republic of)] [Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran (Iran, Islamic Republic of); Mahdavi, Seied Rabi Mehdi [Department of Medical Physics, Faculty of Medical Sciences, Tehran University of Medical Sciences, Tehran (Iran, Islamic Republic of)] [Department of Medical Physics, Faculty of Medical Sciences, Tehran University of Medical Sciences, Tehran (Iran, Islamic Republic of); Nikoofar, Alireza; Vasheghani, Maryam [Department of Radiation Oncology, Hafte-Tir Hospital, Tehran University of Medical Sciences, Tehran (Iran, Islamic Republic of)] [Department of Radiation Oncology, Hafte-Tir Hospital, Tehran University of Medical Sciences, Tehran (Iran, Islamic Republic of); Kazemnejad, Anoshirvan [Department of Biostatistics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran (Iran, Islamic Republic of)] [Department of Biostatistics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran (Iran, Islamic Republic of)

2013-02-01T23:59:59.000Z

375

A Space Weather Information Service Based Upon Remote and In-Situ Measurements of Coronal Mass Ejections Heading for Earth  

E-Print Network [OSTI]

The Earth's magnetosphere is formed as a consequence of interaction between the planet's magnetic field and the solar wind, a continuous plasma stream from the Sun. A number of different solar wind phenomena have been studied over the past forty years with the intention of understanding and forecasting solar behavior. One of these phenomena in particular, Earth-bound interplanetary coronal mass ejections (CMEs), can significantly disturb the Earth's magnetosphere for a short time and cause geomagnetic storms. This publication presents a mission concept consisting of six spacecraft that are equally spaced in a heliocentric orbit at 0.72 AU. These spacecraft will monitor the plasma properties, the magnetic field's orientation and magnitude, and the 3D-propagation trajectory of CMEs heading for Earth. The primary objective of this mission is to increase space weather (SW) forecasting time by means of a near real-time information service, that is based upon in-situ and remote measurements of the aforementioned CM...

Ritter, Birgit; Miles, Oscar; Ruwurm, Michael; Scully, Stephen; Roldn, Andrs; Hartkorn, Oliver; Jstel, Peter; Rville, Victor; Lupu, Sorina; Ruffenach, Alexis

2015-01-01T23:59:59.000Z

376

Uncertainty in treatment of head-and-neck tumors by use of intraoral mouthpiece and embedded fiducials  

SciTech Connect (OSTI)

Purpose: To reduce setup error and intrafractional movement in head-and-neck treatment, a real-time tumor tracking radiotherapy (RTRT) system was used with the aid of gold markers implanted in a mouthpiece. Methods and Materials: Three 2-mm gold markers were implanted into a mouthpiece that had been custom made for each patient before the treatment planning process. Setup errors in the conventional immobilization system using the shell (manual setup) and in the RTRT system (RTRT setup) were compared. Eight patients with pharyngeal tumors were enrolled. Results: The systematic setup errors were 1.8, 1.6, and 1.1 mm in the manual setup and 0.2, 0.3, and 0.3 mm in the RTRT setup in right-left, craniocaudal, and AP directions, respectively. Statistically significant differences were observed with respect to the variances in setup error (p <0.001). The systematic and random intrafractional errors were maintained within the ranges of 0.2-0.6 mm and 1.0-2.0 mm, respectively. The rotational systematic and random intrafractional errors were estimated to be 2.2-3.2{sup o} and 1.5-1.6{sup o}, respectively. Conclusions: The setup error and planning target volume margin can be significantly reduced using an RTRT system with a mouthpiece and three gold markers.

Oita, Masataka [Department of Radiology, Hokkaido University School of Medicine, Sapporo (Japan)]. E-mail: oita@medsci.tokushima-u.ac.jp; Ohmori, Keiichi [Department of Dental Radiology, Hokkaido University School of Dentistry, Sapporo (Japan); Obinata, Kenichi [Department of Dental Radiology, Hokkaido University School of Dentistry, Sapporo (Japan); Kinoshita, Rumiko [Department of Radiology, Hokkaido University School of Medicine, Sapporo (Japan); Onimaru, Rikiya [Department of Radiology, Hokkaido University School of Medicine, Sapporo (Japan); Tsuchiya, Kazuhiko [Department of Radiology, Hokkaido University School of Medicine, Sapporo (Japan); Suzuki, Keishirou [Department of Radiology, Hokkaido University School of Medicine, Sapporo (Japan); Nishioka, Takeshi [Department of Radiology, Hokkaido University School of Medicine, Sapporo (Japan); Ohsaka, Hiroyasu [Department of Radiology, Hokkaido University School of Medicine, Sapporo (Japan); Fujita, Katsuhisa [Department of Radiology, Hokkaido University School of Medicine, Sapporo (Japan); Shimamura, Teppei [Hokkaido University Information Center, Sapporo (Japan); Shirato, Hiroki [Department of Radiology, Hokkaido University School of Medicine, Sapporo (Japan); Miyasaka, Kazuo [Department of Radiology, Hokkaido University School of Medicine, Sapporo (Japan)

2006-04-01T23:59:59.000Z

377

Use of curium neutron flux from head-end pyroprocessing subsystems for the High Reliability Safeguards methodology  

Science Journals Connector (OSTI)

Abstract The deployment of nuclear energy systems (NESs) is expanding around the world. Nations are investing in \\{NESs\\} as a means to establish energy independence, grow national economies, and address climate change. Transitioning to the advanced nuclear fuel cycle can meet growing energy demands and ensure resource sustainability. However, nuclear facilities in all phases of the advanced fuel cycle must be safeguardable, where safety, safeguards, and security are integrated into a practical design strategy. To this end, the High Reliability Safeguards (HRS) approach is a continually developing safeguardability methodology that applies intrinsic design features and employs a risk-informed approach for systems assessment that is safeguards-motivated. Currently, a commercial pyroprocessing facility is used as the example system. This paper presents a modeling study that investigates the neutron flux associated with processed materials. The intent of these studies is to determine if the neutron flux will affect facility design, and subsequently, safeguardability. The results presented in this paper are for the head-end subsystems in a pyroprocessing facility. The collective results from these studies will then be used to further develop the HRS methodology.

R.A. Borrelli

2014-01-01T23:59:59.000Z

378

Type B Accident Investigation Board Report on the Head Injury to a Miner at the Waste Isolation Pilot Plant, Carlsbad, New Mexico August 25, 2004  

Broader source: Energy.gov [DOE]

On August 25, 2004, an employee of Washington TRU Solution, LLC (WTS) sustained a head injury when he was struck by a C-clamp and rope attachment that broke loose from a piece of metal vent line that was being dragged. This occurred as part of the development and recovery of an existing drift for underground disposal of waste at the Waste Isolation Pilot Plant (WIPP).

379

Hydrothermal Synthesis of Delafossite-Type Oxides William C. Sheets, Emmanuelle Mugnier, Antoine Barnabe, Tobin J. Marks, and  

E-Print Network [OSTI]

H, and reactant solubility, results in broad families of phase-pure delafossite-type oxides in moderate to high reported by Friedel in 1873 and named in honor of the French mineralogist and crystallographer, Gabriel choices for improved electrical conductivity. Owing to the optical absorption from d-d electron

Poeppelmeier, Kenneth R.

380

Hybrid Backstepping Control for Rotorcraft Antoine Drouin, Jules G. Slama and Flix A.C. Mora-Camino  

E-Print Network [OSTI]

considered with little success to achieve either only autonomous hovering and orientation or also trajectory. The control problem of interest is the design of flight control laws enabling autonomous positioning assumptions adopted with respect to flight dynamics in this study are a rigid cross structure, constant wind

Paris-Sud XI, Université de

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381

Weldability and keyhole behavior of Zn-coated steel in remote welding using disk laser with scanner head  

Science Journals Connector (OSTI)

Zinc-coated steels are widely used in automobile bodies. Laser welding which offers a lot of advantages over the conventional welding with metal active gas welding CO2 arc etc. in terms of improved weld quality high-speed and easy automation has been developed for cars. However in laser lap welding of zinc-coated steel sheets without gaps defects such as underfilled beads or porosity were easily formed due to higher pressure of zinc vapor trapped in the molten pool because of the lower boiling point of zinc (1180?K) with respect to the melting point of steel (Fe 1803?K). Laser lap welding results of two Zn-coated steel sheets have been reported. However there are not enough data for welding of three Zn-coated steel sheets. Therefore to understand laser lap weldability of three Zn-coated steel sheets lap welding of two or three sheets with and without gaps was performed using 16?kW disk laser apparatus with a scanner head and molten pool motions spattering and keyhole behavior during welding were observed by high-speed video cameras and x-ray transmission real-time imaging apparatus. Lap welding of three steel sheets was difficult but acceptably good welds were produced in sheets with upper and lower gaps of 0.1 and 0.1?mm 0.1 and 0.2?mm or 0.2 and 0.1?mm respectively. Bubble generation leading to porosity formation was observed and it was confirmed that welding phenomena were different depending upon the gap levels.

Jong-Do Kim

2013-01-01T23:59:59.000Z

382

Beam Path Toxicities to Non-Target Structures During Intensity-Modulated Radiation Therapy for Head and Neck Cancer  

SciTech Connect (OSTI)

Background: Intensity-modulated radiation therapy (IMRT) beams traverse nontarget normal structures not irradiated during three-dimensional conformal RT (3D-CRT) for head and neck cancer (HNC). This study estimates the doses and toxicities to nontarget structures during IMRT. Materials and Methods: Oropharyngeal cancer IMRT and 3D-CRT cases were reviewed. Dose-volume histograms (DVH) were used to evaluate radiation dose to the lip, cochlea, brainstem, occipital scalp, and segments of the mandible. Toxicity rates were compared for 3D-CRT, IMRT alone, or IMRT with concurrent cisplatin. Descriptive statistics and exploratory recursive partitioning analysis were used to estimate dose 'breakpoints' associated with observed toxicities. Results: A total of 160 patients were evaluated for toxicity; 60 had detailed DVH evaluation and 15 had 3D-CRT plan comparison. Comparing IMRT with 3D-CRT, there was significant (p {<=} 0.002) nonparametric differential dose to all clinically significant structures of interest. Thirty percent of IMRT patients had headaches and 40% had occipital scalp alopecia. A total of 76% and 38% of patients treated with IMRT alone had nausea and vomiting, compared with 99% and 68%, respectively, of those with concurrent cisplatin. IMRT had a markedly distinct toxicity profile than 3D-CRT. In recursive partitioning analysis, National Cancer Institute's Common Toxicity Criteria adverse effects 3.0 nausea and vomiting, scalp alopecia and anterior mucositis were associated with reconstructed mean brainstem dose >36 Gy, occipital scalp dose >30 Gy, and anterior mandible dose >34 Gy, respectively. Conclusions: Dose reduction to specified structures during IMRT implies an increased beam path dose to alternate nontarget structures that may result in clinical toxicities that were uncommon with previous, less conformal approaches. These findings have implications for IMRT treatment planning and research, toxicity assessment, and multidisciplinary patient management.

Rosenthal, David I. [Department of Radiation Oncology, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States)], E-mail: dirosenthal@mdanderson.org; Chambers, Mark S. [Department of Dental Oncology, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Fuller, Clifton D. [Department of Radiation Oncology and Division of Radiological Sciences/Department of Radiology, University of Texas Health Science Center at San Antonio, San Antonio, TX (United States); Rebueno, Neal; Garcia, John [Department of Radiation Oncology, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Kies, Merrill S. [Department of Thoracic/Head and Neck Medical Oncology, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Morrison, William H.; Ang, K. Kian; Garden, Adam S. [Department of Radiation Oncology, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States)

2008-11-01T23:59:59.000Z

383

Multi-Institutional Analysis of Solitary Extramedullary Plasmacytoma of the Head and Neck Treated With Curative Radiotherapy  

SciTech Connect (OSTI)

Purpose: The purpose of this study was to elucidate the efficacy and optimal method of radiotherapy in the management of solitary extramedullary plasmacytoma occurring in the head and neck regions (EMPHN). Methods and Materials: Sixty-seven patients (43 male and 24 female) diagnosed with EMPHN between 1983 and 2008 at 23 Japanese institutions were reviewed. The median patient age was 64 years (range, 12-83). The median dose administered was 50 Gy (range, 30-64 Gy). Survival data were calculated by the Kaplan-Meier method. Results: The median follow-up duration was 63 months. Major tumor sites were nasal or paranasal cavities in 36 (54%) patients, oropharynx or nasopharynx in 16 (23%) patients, orbita in 6 (9%) patients, and larynx in 3 (5%) patients. The 5- and 10-year local control rates were 95% and 87%, whereas the 5- and 10-year disease-free survival rates were 56% and 54%, respectively. There were 5 (7.5%), 12 (18%), and 8 (12%) patients who experienced local failure, distant metastasis, and progression to multiple myeloma, respectively. In total, 18 patients died, including 10 (15%) patients who died due to complications from EMPHN. The 5- and 10-year overall survival (OS) rates were 73% and 56%, respectively. Radiotherapy combined with surgery was identified as the lone significant prognostic factor for OS (p = 0.04), whereas age, gender, radiation dose, tumor size, and chemotherapy were not predictive. No patient experienced any severe acute morbidity. Conclusions: Radiotherapy was quite effective and safe for patients with EMPHN. Radiotherapy combined with surgery produced a better outcome according to survival rates. These findings require confirmation by further studies with larger numbers of patients with EMPHN.

Sasaki, Ryohei, E-mail: rsasaki@med.kobe-u.ac.jp [Division of Radiation Oncology, Kobe University Graduate School of Medicine (Japan); Yasuda, Koichi [Department of Radiology, Hokkaido University School of Medicine (Japan); Abe, Eisuke [Division of Radiation Oncology, Graduate School of Medical and Dental Sciences, Niigata University (Japan); Uchida, Nobue [Department of Radiation Oncology, Shimane University Faculty of Medicine (Japan); Kawashima, Mitsuhiko [Radiation Oncology Division, National Cancer Center Hospital East (Japan); Uno, Takashi [Department of Radiology, Graduate School of Medicine, Chiba University (Japan); Fujiwara, Masayuki [Department of Radiology, Hyogo College of Medicine (Japan); Shioyama, Yoshiyuki [Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University (Japan); Kagami, Yoshikazu [Radiation Oncology Division, National Cancer Center Hospital (Japan); Shibamoto, Yuta [Department of Radiology, Nagoya City University Graduate School of Medical Sciences (Japan); Nakata, Kensei [Department of Radiology, Sapporo Medical University (Japan); Takada, Yoshie [Department of Radiology, Osaka City University Graduate School of Medicine (Japan); Kawabe, Tetsuya; Uehara, Kazuyuki [Division of Radiation Oncology, Kobe University Graduate School of Medicine (Japan); Nibu, Kenichi [Division of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine (Japan); Yamada, Syogo [Department of Radiation Oncology, Tohoku University School of Medicine (Japan)

2012-02-01T23:59:59.000Z

384

Involved-Lesion Radiation Therapy After Chemotherapy in Limited-Stage Head-and-Neck Diffuse Large B Cell Lymphoma  

SciTech Connect (OSTI)

Purpose: To report treatment outcomes after combined-modality therapy in patients with Stage I/II head-and-neck (HN) diffuse large B cell lymphoma (DLBL). Methods and Materials: Eighty-six eligible patients received sequential chemotherapy and involved-lesion radiation therapy from 1995 to 2006. After a median of four cycles of CHOP (cyclophosphamide, doxorubicin, vincristine, and prednisone) or rituximab-plus-CHOP chemotherapy, a median of 41.4 Gy was delivered to the known initial gross lesion with adequate margin (2 to 3 cm). Results: After a median follow-up of 57 months, eight treatment failures were observed: distant metastasis in 8 patients; and locoregional failure in 4 patients. Among the 4 patients with locoregional failure, 3 presented with in-field failures, and 1 both in-field and out-of-field failure (contralateral neck). Rates of overall survival (OS) and freedom from progression (FFP) at 10 years were 74.1% and 88.9%, respectively. There was no severe side effect except 1 patient with Grade 3 mucositis during and after completion of radiation therapy. Multivariate analyses showed that absence of B symptom (p = 0.022) and normal lactate dehydrogenase (p = 0.017) were related to favorable OS, age >60 years (p = 0.033) was related to favorable FFP, and international prognostic index of 0 or 1 was related to favorable OS (p = 0.003) and FFP (p = 0.03). Conclusion: This study demonstrated that patients with Stage I/II HN DLBL did not need whole-neck irradiation. Involved-lesion radiation therapy might reduce radiation toxicity with favorable treatment results.

Yu, Jeong Il; Nam, Heerim [Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul (Korea, Republic of); Ahn, Yong Chan, E-mail: ahnyc@skku.ed [Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul (Korea, Republic of); Kim, Won Seog; Park, Keunchil; Kim, Seok Jin [Division of Hematology-Oncology, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul (Korea, Republic of)

2010-10-01T23:59:59.000Z

385

Heads in the Sand  

Science Journals Connector (OSTI)

Radioactive waste also surrounds us. The proposed Yucca Mountain nuclear waste repository in Nevada is perhaps the best example of NIMBYs unfortunate outcomes. Yucca Mountain was intended to receive ultimate...

Neil Shifrin PhD

2014-01-01T23:59:59.000Z

386

Head in the clouds  

Science Journals Connector (OSTI)

......2009TheBritishComputerSociety computing in finance houses, chemical companies, and anywhere else...which the customer has produced in-house and wants to try on new architectures...processors for better performance and energy efficiency.' SiCortex, an HPC vendor, has even......

Hannah Dee

2009-05-01T23:59:59.000Z

387

from the Head  

E-Print Network [OSTI]

Feb 24, 2010 ... Named the national sales leader for IBM Corporation. 1966. Provided scientific programming on weather satellite program at Missile and Space.

Sally Goeke

2010-06-30T23:59:59.000Z

388

Deadheads and Propeller Heads  

Science Journals Connector (OSTI)

These young researchers were not just rebelling for the sake of it, they were exploring different ways of working, collaborating and innovating. LSD wasnt even then considered a recreational drug. It was admi...

Assoc. Prof. Ian Watson

2012-01-01T23:59:59.000Z

389

CT head-scan dosimetry in an anthropomorphic phantom and associated measurement of ACR accreditation-phantom imaging metrics under clinically representative scan conditions  

SciTech Connect (OSTI)

Purpose: To measure radiation absorbed dose and its distribution in an anthropomorphic head phantom under clinically representative scan conditions in three widely used computed tomography (CT) scanners, and to relate those dose values to metrics such as high-contrast resolution, noise, and contrast-to-noise ratio (CNR) in the American College of Radiology CT accreditation phantom.Methods: By inserting optically stimulated luminescence dosimeters (OSLDs) in the head of an anthropomorphic phantom specially developed for CT dosimetry (University of Florida, Gainesville), we measured dose with three commonly used scanners (GE Discovery CT750 HD, Siemens Definition, Philips Brilliance 64) at two different clinical sites (Walter Reed National Military Medical Center, National Institutes of Health). The scanners were set to operate with the same data-acquisition and image-reconstruction protocols as used clinically for typical head scans, respective of the practices of each facility for each scanner. We also analyzed images of the ACR CT accreditation phantom with the corresponding protocols. While the Siemens Definition and the Philips Brilliance protocols utilized only conventional, filtered back-projection (FBP) image-reconstruction methods, the GE Discovery also employed its particular version of an adaptive statistical iterative reconstruction (ASIR) algorithm that can be blended in desired proportions with the FBP algorithm. We did an objective image-metrics analysis evaluating the modulation transfer function (MTF), noise power spectrum (NPS), and CNR for images reconstructed with FBP. For images reconstructed with ASIR, we only analyzed the CNR, since MTF and NPS results are expected to depend on the object for iterative reconstruction algorithms.Results: The OSLD measurements showed that the Siemens Definition and the Philips Brilliance scanners (located at two different clinical facilities) yield average absorbed doses in tissue of 42.6 and 43.1 mGy, respectively. The GE Discovery delivers about the same amount of dose (43.7 mGy) when run under similar operating and image-reconstruction conditions, i.e., without tube current modulation and ASIR. The image-metrics analysis likewise showed that the MTF, NPS, and CNR associated with the reconstructed images are mutually comparable when the three scanners are run with similar settings, and differences can be attributed to different edge-enhancement properties of the applied reconstruction filters. Moreover, when the GE scanner was operated with the facility's scanner settings for routine head exams, which apply 50% ASIR and use only approximately half of the 100%-FBP dose, the CNR of the images showed no significant change. Even though the CNR alone is not sufficient to characterize the image quality and justify any dose reduction claims, it can be useful as a constancy test metric.Conclusions: This work presents a straightforward method to connect direct measurements of CT dose with objective image metrics such as high-contrast resolution, noise, and CNR. It demonstrates that OSLD measurements in an anthropomorphic head phantom allow a realistic and locally precise estimation of magnitude and spatial distribution of dose in tissue delivered during a typical CT head scan. Additional objective analysis of the images of the ACR accreditation phantom can be used to relate the measured doses to high contrast resolution, noise, and CNR.

Brunner, Claudia C.; Stern, Stanley H.; Chakrabarti, Kish [U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, Maryland 20993 (United States)] [U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, Maryland 20993 (United States); Minniti, Ronaldo [National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899 (United States)] [National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899 (United States); Parry, Marie I. [Walter Reed National Military Medical Center, 8901 Rockville Pike, Bethesda, Maryland 20889 (United States)] [Walter Reed National Military Medical Center, 8901 Rockville Pike, Bethesda, Maryland 20889 (United States); Skopec, Marlene [National Institutes of Health, 9000 Rockville Pike, Bethesda, Maryland 20892 (United States)] [National Institutes of Health, 9000 Rockville Pike, Bethesda, Maryland 20892 (United States)

2013-08-15T23:59:59.000Z

390

Impact of intra-arterial administration of boron compounds on dose-volume histograms in boron neutron capture therapy for recurrent head-and-neck tumors  

SciTech Connect (OSTI)

Purpose: To analyze the dose-volume histogram (DVH) of head-and-neck tumors treated with boron neutron capture therapy (BNCT) and to determine the advantage of the intra-arterial (IA) route over the intravenous (IV) route as a drug delivery system for BNCT. Methods and Materials: Fifteen BNCTs for 12 patients with recurrent head-and-neck tumors were included in the present study. Eight irradiations were done after IV administration of boronophenylalanine and seven after IA administration. The maximal, mean, and minimal doses given to the gross tumor volume were assessed using a BNCT planning system. Results: The results are reported as median values with the interquartile range. In the IA group, the maximal, mean, and minimal dose given to the gross tumor volume was 68.7 Gy-Eq (range, 38.8-79.9), 45.0 Gy-Eq (range, 25.1-51.0), and 13.8 Gy-Eq (range, 4.8-25.3), respectively. In the IV group, the maximal, mean, and minimal dose given to the gross tumor volume was 24.2 Gy-Eq (range, 21.5-29.9), 16.4 Gy-Eq (range, 14.5-20.2), and 7.8 Gy-Eq (range, 6.8-9.5), respectively. Within 1-3 months after BNCT, the responses were assessed. Of the 6 patients in the IV group, 2 had a partial response, 3 no change, and 1 had progressive disease. Of 4 patients in the IA group, 1 achieved a complete response and 3 a partial response. Conclusion: Intra-arterial administration of boronophenylalanine is a promising drug delivery system for head-and-neck BNCT.

Suzuki, Minoru [Particle Oncology Research Center, Research Reactor Institute, Kyoto University, Osaka (Japan)]. E-mail: msuzuki@rri.kyoto-u.ac.jp; Sakurai, Yoshinori [Division of Medical Physics, Department of Radiation Life Science, Research Reactor Institute, Kyoto University, Osaka (Japan); Nagata, Kenji [Particle Oncology Research Center, Research Reactor Institute, Kyoto University, Osaka (Japan); Kinashi, Yuko [Particle Oncology Research Center, Research Reactor Institute, Kyoto University, Osaka (Japan); Masunaga, Shinichiro [Particle Oncology Research Center, Research Reactor Institute, Kyoto University, Osaka (Japan); Ono, Koji [Particle Oncology Research Center, Research Reactor Institute, Kyoto University, Osaka (Japan); Maruhashi, Akira [Division of Medical Physics, Department of Radiation Life Science, Research Reactor Institute, Kyoto University, Osaka (Japan); Kato, Ituro [Department of Oral and Maxillofacial Surgery II, Osaka University Graduate School of Dentistry, Osaka (Japan); Fuwa, Nobukazu [Department of Radiation Oncology, Aichi Cancer Center, Aichi (Japan); Hiratsuka, Junichi [Department of Radiation Oncology, Kawasaki Medical School, Okayama (Japan); Imahori, Yoshio [Cancer Intelligence Care Systems, Inc., Tokyo (Japan)

2006-12-01T23:59:59.000Z

391

Matching extended-SSD electron beams to multileaf collimated photon beams in the treatment of head and neck cancer  

SciTech Connect (OSTI)

Purpose: Matching the penumbra of a 6 MeV electron beam to the penumbra of a 6 MV photon beam is a dose optimization challenge, especially when the electron beam is applied from an extended source-to-surface distance (SSD), as in the case of some head and neck treatments. Traditionally low melting point alloy blocks have been used to define the photon beam shielding over the spinal cord region. However, these are inherently time consuming to construct and employ in the clinical situation. Multileaf collimators (MLCs) provide a fast and reproducible shielding option but generate geometrically nonconformal approximations to the desired beam edge definition. The effects of substituting Cerrobend for the MLC shielding mode in the context of beam matching with extended-SSD electron beams are the subject of this investigation. Methods: Relative dose beam data from a Varian EX 2100 linear accelerator were acquired in a water tank under the 6 MeV electron beam at both standard and extended-SSD and under the 6 MV photon beam defined by Cerrobend and a number of MLC stepping regimes. The effect of increasing the electron beam SSD on the beam penumbra was assessed. MLC stepping was also assessed in terms of the effects on both the mean photon beam penumbra and the intraleaf dose-profile nonuniformity relative to the MLC midleaf. Computational techniques were used to combine the beam data so as to simulate composite relative dosimetry in the water tank, allowing fine control of beam abutment gap variation. Idealized volumetric dosimetry was generated based on the percentage depth-dose data for the beam modes and the abutment geometries involved. Comparison was made between each composite dosimetry dataset and the relevant ideal dosimetry dataset by way of subtraction. Results: Weighted dose-difference volume histograms (DDVHs) were produced, and these, in turn, summed to provide an overall dosimetry score for each abutment and shielding type/angle combination. Increasing the electron beam SSD increased the penumbra width (defined as the lateral distance of the 80% and 20% isodose contours) by 8-10 mm at the depths of 10-20 mm. Mean photon beam penumbra width increased with increased MLC stepping, and the mean MLC penumbra was {approx_equal}1.5 times greater than that across the corresponding Cerrobend shielding. Intraleaf dose discrepancy in the direction orthogonal to the beam edge also increased with MLC stepping. Conclusions: The weighted DDVH comparison techniques allowed the composite dosimetry resulting from the interplay of the abovementioned variables to be ranked. The MLC dosimetry ranked as good or better than that resulting from beam matching with Cerrobend for all except large field overlaps (-2.5 mm gap). The results for the linear-weighted DDVH comparison suggest that optimal MLC abutment dosimetry results from an optical surface gap of around 1{+-}0.5 mm. Furthermore, this appears reasonably lenient to abutment gap variation, such as that arising from uncertainty in beam markup or other setup errors.

Steel, Jared; Stewart, Allan; Satory, Philip [Auckland Regional Blood and Cancer Service, Auckland City Hospital, 2 Park Road, Grafton, Auckland 1023 (New Zealand)

2009-09-15T23:59:59.000Z

392

Dosimetric influences of rotational setup errors on head and neck carcinoma intensity-modulated radiation therapy treatments  

SciTech Connect (OSTI)

The purpose of this work is to investigate the dosimetric influence of the residual rotational setup errors on head and neck carcinoma (HNC) intensity-modulated radiation therapy (IMRT) with routine 3 translational setup corrections and the adequacy of this routine correction. A total of 66 kV cone beam computed tomography (CBCT) image sets were acquired on the first day of treatment and weekly thereafter for 10 patients with HNC and were registered with the corresponding planning CT images, using 2 3-dimensional (3D) rigid registration methods. Method 1 determines the translational setup errors only, and method 2 determines 6-degree (6D) setup errors, i.e., both rotational and translational setup errors. The 6D setup errors determined by method 2 were simulated in the treatment planning system and were then corrected using the corresponding translational data determined by method 1. For each patient, dose distributions for 6 to 7 fractions with various setup uncertainties were generated, and a plan sum was created to determine the total dose distribution through an entire course and was compared with the original treatment plan. The average rotational setup errors were 0.7 1.0, 0.11.9, and 0.30.7 around left-right (LR), anterior-posterior (AP), and superior-inferior (SI) axes, respectively. With translational corrections determined by method 1 alone, the dose deviation could be large from fraction to fraction. For a certain fraction, the decrease in prescription dose coverage (V{sub p}) and the dose that covers 95% of target volume (D{sub 95}) could be up to 15.8% and 13.2% for planning target volume (PTV), and the decrease in V{sub p} and the dose that covers 98% of target volume (D{sub 98}) could be up to 9.8% and 5.5% for the clinical target volume (CTV). However, for the entire treatment course, for PTV, the plan sum showed that the average V{sub p} was decreased by 4.2% and D{sub 95} was decreased by 1.2 Gy for the first phase of IMRT with a prescription dose of 50 Gy. For CTV, the plan sum showed that the average V{sub p} was decreased by 0.8% and D{sub 98}, relative to prescription dose, was not decreased. Among these 10 patients, the plan sum showed that the dose to 1-cm{sup 3} spinal cord (D{sub 1cm{sup 3}}) increased no more than 1 Gy for 7 patients and more than 2 Gy for 2 patients. The average increase in D{sub 1cm{sup 3}} was 1.2 Gy. The study shows that, with translational setup error correction, the overall CTV V{sub p} has a minor decrease with a 5-mm margin from CTV to PTV. For the spinal cord, a noticeable dose increase was observed for some patients. So to decide whether the routine clinical translational setup error correction is adequate for this HNC IMRT technique, the dosimetric influence of rotational setup errors should be evaluated carefully from case to case when organs at risk are in close proximity to the target.

Fu, Weihua, E-mail: fuw@upmc.edu [Department of Radiation Oncology, University of Pittsburgh Cancer Institute, Pittsburgh, PA (United States); Yang, Yong [Department of Radiation Oncology, University of Pittsburgh Cancer Institute, Pittsburgh, PA (United States); Yue, Ning J. [Department of Radiation Oncology, UMDNJ-Robert Wood Johnson Medical School, The Cancer Institute of New Jersey, New Brunswick, NJ (United States); Heron, Dwight E.; Saiful Huq, M. [Department of Radiation Oncology, University of Pittsburgh Cancer Institute, Pittsburgh, PA (United States)

2013-07-01T23:59:59.000Z

393

An Integrated Experimental and Computational Investigation into the Dynamic Loads and Free-surface Wave-Field Perturbations Induced by Head-Sea Regular Waves on a 1/8.25 Scale-Model of the R/V ATHENA  

E-Print Network [OSTI]

A 1/8.25 scale-model of the U.S. Navy Research Vessel ATHENA was tested in regular head-sea waves to obtain data for validation of computational fluid dynamics (CFD) predictive tools. The experiments were performed in the David Taylor Model Basin at the Naval Surface Warfare Center (NSWC). With the model towed fixed in head-seas, horizontal and vertical loads on the model were obtained at two Froude numbers, $F_r=0.25$ and $F_r=0.43$. The model was run at two conditions of head-sea wavelengths corresponding to $\\lambda=2L_o$ and $\\lambda=1/2L_o$ with $H/\\lambda=0.03$, where $L_o$ is the length of the model and $H=2 a$ is the wave height. The wave field perturbations induced by the head-sea waves were quantified from free-surface images generated by a laser light sheet. Predictions of the horizontal and vertical loads on the model in regular head sea waves were made with the Numerical Flow Analysis (NFA) code. Numerical predictions of the wave-field perturbations were compared with the experimental data and th...

Ratcliffe, Toby; O'Shea, Thomas T; Fu, Thomas; Russell, Lauren; Dommermuth, Douglas G

2014-01-01T23:59:59.000Z

394

Characterization of groundwater flow and transport in the General Separations Area, Savannah River Plant: Effect of groundwater withdrawals on the Tuscaloosa-Congaree aquifer head reversal in H Area. Final report  

SciTech Connect (OSTI)

The Savannah River Plant (SRP) has maintained a number of sites used for land disposal of various waste materials. The General Separations Area at SRP, located between the Upper Three Runs and Four Mile Creeks, has served as an active area for waste storage for about thirty years. The Tuscaloosa aquifer, which lies beneath the General Separations Area, is a water source for SRP and the surrounding area. The isolation of the Tuscaloosa aquifer has been maintained by an upward hydraulic gradient from the Tuscaloosa aquifer to the overlying Congaree aquifer. This upward gradient is referred to as a hydraulic head reversal in the General Separations Area, i.e., hydraulic heads in the upper Tuscaloosa are higher than hydraulic heads in the Congaree. This head reversal has declined in recent years due to increased groundwater pumping in the upper and lower Tuscaloosa formations. The objective of this investigation is to assess the effects of pumping within the General Separations Area on the Congaree/upper Tuscaloosa head reversal. Methods of maintaining future Tuscaloosa aquifer isolation through the optimization of groundwater withdrawal location and rate were studied. Steady-state and transient groundwater flow models were used to characterize past and potential future groundwater conditions. Future groundwater conditions were simulated for a variety of pumping scenarios.

Spalding, C.P.; Duffield, G.M.; Shaw, S.T. [GeoTrans, Inc., Herndon, VA (United States)

1988-01-01T23:59:59.000Z

395

Characterization of groundwater flow and transport in the General Separations Area, Savannah River Plant: Effect of groundwater withdrawals on the Tuscaloosa-Congaree aquifer head reversal in H Area  

SciTech Connect (OSTI)

The Savannah River Plant (SRP) has maintained a number of sites used for land disposal of various waste materials. The General Separations Area at SRP, located between the Upper Three Runs and Four Mile Creeks, has served as an active area for waste storage for about thirty years. The Tuscaloosa aquifer, which lies beneath the General Separations Area, is a water source for SRP and the surrounding area. The isolation of the Tuscaloosa aquifer has been maintained by an upward hydraulic gradient from the Tuscaloosa aquifer to the overlying Congaree aquifer. This upward gradient is referred to as a hydraulic head reversal in the General Separations Area, i.e., hydraulic heads in the upper Tuscaloosa are higher than hydraulic heads in the Congaree. This head reversal has declined in recent years due to increased groundwater pumping in the upper and lower Tuscaloosa formations. The objective of this investigation is to assess the effects of pumping within the General Separations Area on the Congaree/upper Tuscaloosa head reversal. Methods of maintaining future Tuscaloosa aquifer isolation through the optimization of groundwater withdrawal location and rate were studied. Steady-state and transient groundwater flow models were used to characterize past and potential future groundwater conditions. Future groundwater conditions were simulated for a variety of pumping scenarios.

Spalding, C.P.; Duffield, G.M.; Shaw, S.T. (GeoTrans, Inc., Herndon, VA (United States))

1988-01-01T23:59:59.000Z

396

{sup 18}F-FLT uptake kinetics in head and neck squamous cell carcinoma: A PET imaging study  

SciTech Connect (OSTI)

Purpose: To analyze the kinetics of 3{sup ?}-deoxy-3{sup ?}-[F-18]-fluorothymidine (18F-FLT) uptake by head and neck squamous cell carcinomas and involved nodes imaged using positron emission tomography (PET). Methods: Two- and three-tissue compartment models were fitted to 12 tumor time-activity-curves (TACs) obtained for 6 structures (tumors or involved nodes) imaged in ten dynamic PET studies of 1 h duration, carried out for five patients. The ability of the models to describe the data was assessed using a runs test, the Akaike information criterion (AIC) and leave-one-out cross-validation. To generate parametric maps the models were also fitted to TACs of individual voxels. Correlations between maps of different parameters were characterized using Pearson'sr coefficient; in particular the phosphorylation rate-constants k{sub 3-2tiss} and k{sub 5} of the two- and three-tissue models were studied alongside the flux parameters K{sub FLT-2tiss} and K{sub FLT} of these models, and standardized uptake values (SUV). A methodology based on expectation-maximization clustering and the Bayesian information criterion (EM-BIC clustering) was used to distil the information from noisy parametric images. Results: Fits of two-tissue models 2C3K and 2C4K and three-tissue models 3C5K and 3C6K comprising three, four, five, and six rate-constants, respectively, pass the runs test for 4, 8, 10, and 11 of 12 tumor TACs. The three-tissue models have lower AIC and cross-validation scores for nine of the 12 tumors. Overall the 3C6K model has the lowest AIC and cross-validation scores and its fitted parameter values are of the same orders of magnitude as literature estimates. Maps ofK{sub FLT} and K{sub FLT-2tiss} are strongly correlated (r = 0.85) and also correlate closely with SUV maps (r = 0.72 for K{sub FLT-2tiss}, 0.64 for K{sub FLT}). Phosphorylation rate-constant maps are moderately correlated with flux maps (r = 0.48 for k{sub 3-2tiss} vs K{sub FLT-2tiss} and r = 0.68 for k{sub 5} vs K{sub FLT}); however, neither phosphorylation rate-constant correlates significantly with SUV. EM-BIC clustering reduces the parametric maps to a small number of levelson average 5.8, 3.5, 3.4, and 1.4 for K{sub FLT-2tiss}, K{sub FLT}, k{sub 3-2tiss}, and k{sub 5.} This large simplification is potentially useful for radiotherapy dose-painting, but demonstrates the high noise in some maps. Statistical simulations show that voxel level noise degrades TACs generated from the 3C6K model sufficiently that the average AIC score, parameter bias, and total uncertainty of 2C4K model fits are similar to those of 3C6K fits, whereas at the whole tumor level the scores are lower for 3C6K fits. Conclusions: For the patients studied here, whole tumor FLT uptake time-courses are represented better overall by a three-tissue than by a two-tissue model. EM-BIC clustering simplifies noisy parametric maps, providing the best description of the underlying information they contain and is potentially useful for radiotherapy dose-painting. However, the clustering highlights the large degree of noise present in maps of the phosphorylation rate-constantsk{sub 5} and k{sub 3-2tiss}, which are conceptually tightly linked to cellular proliferation. Methods must be found to make these maps more robusteither by constraining other model parameters or modifying dynamic imaging protocols.

Liu, Dan, E-mail: dan.liu@oncology.ox.ac.uk; Fenwick, John D. [Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford OX3 7DQ (United Kingdom)] [Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford OX3 7DQ (United Kingdom); Chalkidou, Anastasia; Landau, David B.; Marsden, Paul K. [Division of Imaging Sciences and Biomedical Engineering, School of Medicine, King's College London, St Thomas' Hospital, Westminster Bridge Road, London SE1 7EH (United Kingdom)] [Division of Imaging Sciences and Biomedical Engineering, School of Medicine, King's College London, St Thomas' Hospital, Westminster Bridge Road, London SE1 7EH (United Kingdom)

2014-04-15T23:59:59.000Z

397

Auto-segmentation of normal and target structures in head and neck CT images: A feature-driven model-based approach  

SciTech Connect (OSTI)

Purpose: Intensity modulated radiation therapy (IMRT) allows greater control over dose distribution, which leads to a decrease in radiation related toxicity. IMRT, however, requires precise and accurate delineation of the organs at risk and target volumes. Manual delineation is tedious and suffers from both interobserver and intraobserver variability. State of the art auto-segmentation methods are either atlas-based, model-based or hybrid however, robust fully automated segmentation is often difficult due to the insufficient discriminative information provided by standard medical imaging modalities for certain tissue types. In this paper, the authors present a fully automated hybrid approach which combines deformable registration with the model-based approach to accurately segment normal and target tissues from head and neck CT images. Methods: The segmentation process starts by using an average atlas to reliably identify salient landmarks in the patient image. The relationship between these landmarks and the reference dataset serves to guide a deformable registration algorithm, which allows for a close initialization of a set of organ-specific deformable models in the patient image, ensuring their robust adaptation to the boundaries of the structures. Finally, the models are automatically fine adjusted by our boundary refinement approach which attempts to model the uncertainty in model adaptation using a probabilistic mask. This uncertainty is subsequently resolved by voxel classification based on local low-level organ-specific features. Results: To quantitatively evaluate the method, they auto-segment several organs at risk and target tissues from 10 head and neck CT images. They compare the segmentations to the manual delineations outlined by the expert. The evaluation is carried out by estimating two common quantitative measures on 10 datasets: volume overlap fraction or the Dice similarity coefficient (DSC), and a geometrical metric, the median symmetric Hausdorff distance (HD), which is evaluated slice-wise. They achieve an average overlap of 93% for the mandible, 91% for the brainstem, 83% for the parotids, 83% for the submandibular glands, and 74% for the lymph node levels. Conclusions: Our automated segmentation framework is able to segment anatomy in the head and neck region with high accuracy within a clinically-acceptable segmentation time.

Qazi, Arish A.; Pekar, Vladimir; Kim, John; Xie, Jason; Breen, Stephen L.; Jaffray, David A. [Radiation Medicine Program, Princess Margaret Hospital, Toronto, Ontario M5G 2M9 (Canada); Philips Research North America, Markham, Ontario L6C 2S3 (Canada); Radiation Medicine Program, Princess Margaret Hospital, Toronto, Ontario M5G 2M9 (Canada)

2011-11-15T23:59:59.000Z

398

What is that little voice inside my head? Inner speech phenomenology, its role in cognitive performance, and its relation to self-monitoring  

Science Journals Connector (OSTI)

Abstract The little voice inside our head, or inner speech, is a common everyday experience. It plays a central role in human consciousness at the interplay of language and thought. An impressive host of research works has been carried out on inner speech these last fifty years. Here we first describe the phenomenology of inner speech by examining five issues: common behavioural and cerebral correlates with overt speech, different types of inner speech (wilful verbal thought generation and verbal mind wandering), presence of inner speech in reading and in writing, inner signing and voice-hallucinations in deaf people. Secondly, we review the role of inner speech in cognitive performance (i.e. enhancement vs. perturbation). Finally, we consider agency in inner speech and how our inner voice is known to be self-generated and not produced by someone else.

M. Perrone-Bertolotti; L. Rapin; J.-P. Lachaux; M. Baciu; H. Lvenbruck

2014-01-01T23:59:59.000Z

399

Organ Preservation With Daily Concurrent Chemoradiotherapy Using Superselective Intra-Arterial Infusion via a Superficial Temporal Artery for T3 and T4 Head and Neck Cancer  

SciTech Connect (OSTI)

Purpose: To evaluate the therapeutic results and rate of organ preservation in patients with advanced head and neck cancer treated with superselective intra-arterial chemotherapy via a superficial temporal artery and daily concurrent radiotherapy. Methods and Materials: Between April 2002 and March 2006, 30 patients with T3 or T4a squamous cell carcinoma of the head and neck underwent intra-arterial chemoradiotherapy. Treatment consisted of superselective intra-arterial infusions (docetaxel, total 60 mg/m{sup 2}; cisplatin, total 150 mg/m{sup 2}) and daily concurrent radiotherapy (total, 60 Gy) for 6 weeks. Results: The median follow-up for all patients was 46.2 months (range, 10-90 months). The median follow-up for living patients was 49.7 months (range, 36-90 months). After intra-arterial chemoradiotherapy was administered, primary site complete response was achieved in 30 (100%) of 30 cases. Seven patients (23.3%) died. Using the Kaplan-Meier method, 1-year, 3-year, and 5-year survival rates were 96.7%, 83.1%, and 70.2%, respectively, while 1-year, 3-year, and 5-year local control rates were 83.3%, 79.7%, and 73.0%, respectively. Grade 3 or 4 mucositis occurred in 20 cases (66.7%). Grade 3 toxicities included dysphagia in 20 cases (66.7%), dermatitis in 6 cases (20%), nausea/vomiting in 2 cases (6.7%), and neutropenia and thrombocytopenia in 1 case (3.3%). No osteoradionecrosis of mandible and maxillary bones developed during follow-up. Conclusions: Intra-arterial chemoradiotherapy using a superficial temporal artery provided good overall survival and local control rates. This combination chemoradiotherapy approach can preserve organs and minimize functional disturbance, thus contributing to patients' quality of life.

Mitsudo, Kenji, E-mail: mitsudo@yokohama-cu.ac.j [Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, Yokohama (Japan); Shigetomi, Toshio [Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya (Japan); Fujimoto, Yasushi [Department of Otolaryngology, Nagoya University Graduate School of Medicine, Nagoya (Japan); Nishiguchi, Hiroaki; Yamamoto, Noriyuki; Furue, Hiroki; Ueda, Minoru [Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya (Japan); Itoh, Yoshiyuki [Department of Radiology, Nagoya University Graduate School of Medicine, Nagoya (Japan); Fuwa, Nobukazu [Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, Koriyama (Japan); Tohnai, Iwai [Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, Yokohama (Japan)

2011-04-01T23:59:59.000Z

400

Treatment Planning Constraints to Avoid Xerostomia in Head-and-Neck Radiotherapy: An Independent Test of QUANTEC Criteria Using a Prospectively Collected Dataset  

SciTech Connect (OSTI)

Purpose: The severe reduction of salivary function (xerostomia) is a common complication after radiation therapy for head-and-neck cancer. Consequently, guidelines to ensure adequate function based on parotid gland tolerance dose-volume parameters have been suggested by the QUANTEC group and by Ortholan et al. We perform a validation test of these guidelines against a prospectively collected dataset and compared with a previously published dataset. Methods and Materials: Whole-mouth stimulated salivary flow data from 66 head-and-neck cancer patients treated with radiotherapy at the British Columbia Cancer Agency (BCCA) were measured, and treatment planning data were abstracted. Flow measurements were collected from 50 patients at 3 months, and 60 patients at 12-month follow-up. Previously published data from a second institution, Washington University in St. Louis (WUSTL), were used for comparison. A logistic model was used to describe the incidence of Grade 4 xerostomia as a function of the mean dose of the spared parotid gland. The rate of correctly predicting the lack of xerostomia (negative predictive value [NPV]) was computed for both the QUANTEC constraints and Ortholan et al. recommendation to constrain the total volume of both glands receiving more than 40 Gy to less than 33%. Results: Both datasets showed a rate of xerostomia of less than 20% when the mean dose to the least-irradiated parotid gland is kept to less than 20 Gy. Logistic model parameters for the incidence of xerostomia at 12 months after therapy, based on the least-irradiated gland, were D{sub 50} = 32.4 Gy and and {gamma} = 0.97. NPVs for QUANTEC guideline were 94% (BCCA data), and 90% (WUSTL data). For Ortholan et al. guideline NPVs were 85% (BCCA) and 86% (WUSTL). Conclusion: These data confirm that the QUANTEC guideline effectively avoids xerostomia, and this is somewhat more effective than constraints on the volume receiving more than 40 Gy.

Moiseenko, Vitali, E-mail: vmoiseenko@bccancer.bc.ca [Department of Medical Physics, Vancouver Cancer Centre, British Columbia Cancer Agency, Vancouver, BC (Canada); Wu, Jonn [Department of Radiation Oncology, Vancouver Cancer Centre, British Columbia Cancer Agency, Vancouver, BC (Canada); Hovan, Allan [Department of Oral Oncology, Vancouver Cancer Centre, British Columbia Cancer Agency, Vancouver, BC (Canada); Saleh, Ziad; Apte, Aditya; Deasy, Joseph O. [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Harrow, Stephen [Department of Radiation Oncology, Vancouver Cancer Centre, British Columbia Cancer Agency, Vancouver, BC (Canada); Rabuka, Carman; Muggli, Adam [Department of Oral Oncology, Vancouver Cancer Centre, British Columbia Cancer Agency, Vancouver, BC (Canada); Thompson, Anna [Department of Radiation Oncology, Vancouver Cancer Centre, British Columbia Cancer Agency, Vancouver, BC (Canada)

2012-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
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401

Fully Automated Simultaneous Integrated Boosted-Intensity Modulated Radiation Therapy Treatment Planning Is Feasible for Head-and-Neck Cancer: A Prospective Clinical Study  

SciTech Connect (OSTI)

Purpose: To prospectively determine whether overlap volume histogram (OVH)-driven, automated simultaneous integrated boosted (SIB)-intensity-modulated radiation therapy (IMRT) treatment planning for head-and-neck cancer can be implemented in clinics. Methods and Materials: A prospective study was designed to compare fully automated plans (APs) created by an OVH-driven, automated planning application with clinical plans (CPs) created by dosimetrists in a 3-dose-level (70 Gy, 63 Gy, and 58.1 Gy), head-and-neck SIB-IMRT planning. Because primary organ sparing (cord, brain, brainstem, mandible, and optic nerve/chiasm) always received the highest priority in clinical planning, the study aimed to show the noninferiority of APs with respect to PTV coverage and secondary organ sparing (parotid, brachial plexus, esophagus, larynx, inner ear, and oral mucosa). The sample size was determined a priori by a superiority hypothesis test that had 85% power to detect a 4% dose decrease in secondary organ sparing with a 2-sided alpha level of 0.05. A generalized estimating equation (GEE) regression model was used for statistical comparison. Results: Forty consecutive patients were accrued from July to December 2010. GEE analysis indicated that in APs, overall average dose to the secondary organs was reduced by 1.16 (95% CI = 0.09-2.33) with P=.04, overall average PTV coverage was increased by 0.26% (95% CI = 0.06-0.47) with P=.02 and overall average dose to the primary organs was reduced by 1.14 Gy (95% CI = 0.45-1.8) with P=.004. A physician determined that all APs could be delivered to patients, and APs were clinically superior in 27 of 40 cases. Conclusions: The application can be implemented in clinics as a fast, reliable, and consistent way of generating plans that need only minor adjustments to meet specific clinical needs.

Wu Binbin, E-mail: binbin.wu@gunet.georgetown.edu [Department of Radiation Oncology and Molecular Radiation Science, Johns Hopkins University, Baltimore, Maryland (United States); Department of Radiation Medicine, Georgetown University Hospital, Washington, DC (United States); McNutt, Todd [Department of Radiation Oncology and Molecular Radiation Science, Johns Hopkins University, Baltimore, Maryland (United States)] [Department of Radiation Oncology and Molecular Radiation Science, Johns Hopkins University, Baltimore, Maryland (United States); Zahurak, Marianna [Department of Oncology Biostatistics, Johns Hopkins University, Baltimore, Maryland (United States)] [Department of Oncology Biostatistics, Johns Hopkins University, Baltimore, Maryland (United States); Simari, Patricio [Autodesk Research, Toronto, ON (Canada)] [Autodesk Research, Toronto, ON (Canada); Pang, Dalong [Department of Radiation Medicine, Georgetown University Hospital, Washington, DC (United States)] [Department of Radiation Medicine, Georgetown University Hospital, Washington, DC (United States); Taylor, Russell [Department of Computer Science, Johns Hopkins University, Baltimore, Maryland (United States)] [Department of Computer Science, Johns Hopkins University, Baltimore, Maryland (United States); Sanguineti, Giuseppe [Department of Radiation Oncology and Molecular Radiation Science, Johns Hopkins University, Baltimore, Maryland (United States)] [Department of Radiation Oncology and Molecular Radiation Science, Johns Hopkins University, Baltimore, Maryland (United States)

2012-12-01T23:59:59.000Z

402

Lack of Osteoradionecrosis of the Mandible After Intensity-Modulated Radiotherapy for Head and Neck Cancer: Likely Contributions of Both Dental Care and Improved Dose Distributions  

SciTech Connect (OSTI)

Purpose: To assess the prevalence and dosimetric and clinical predictors of mandibular osteoradionecrosis (ORN) in patients with head and neck cancer who underwent a pretherapy dental evaluation and prophylactic treatment according to a uniform policy and were treated with intensity-modulated radiotherapy (IMRT). Methods and Materials: Between 1996 and 2005, all patients with head-and-neck cancer treated with parotid gland-sparing IMRT in prospective studies underwent a dental examination and prophylactic treatment according to a uniform policy that included extractions of high-risk, periodontally involved, and nonrestorable teeth in parts of the mandible expected to receive high radiation doses, fluoride supplements, and the placement of guards aiming to reduce electron backscatter off metal teeth restorations. The IMRT plans included dose constraints for the maximal mandibular doses and reduced mean parotid gland and noninvolved oral cavity doses. A retrospective analysis of Grade 2 or worse (clinical) ORN was performed. Results: A total of 176 patients had a minimal follow-up of 6 months. Of these, 31 (17%) had undergone teeth extractions before RT and 13 (7%) after RT. Of the 176 patients, 75% and 50% had received {>=}65 Gy and {>=}70 Gy to {>=}1% of the mandibular volume, respectively. Falloff across the mandible characterized the dose distributions: the average gradient (in the axial plane containing the maximal mandibular dose) was 11 Gy (range, 1-27 Gy; median, 8 Gy). At a median follow-up of 34 months, no cases of ORN had developed (95% confidence interval, 0-2%). Conclusion: The use of a strict prophylactic dental care policy and IMRT resulted in no case of clinical ORN. In addition to the dosimetric advantages offered by IMRT, meticulous dental prophylactic care is likely an essential factor in reducing ORN risk.

Ben-David, Merav A. [Department of Radiation Oncology, University of Michigan Medical School, Ann Arbor, MI (United States); Diamante, Maximiliano [Department of Oral and Maxillofacial Surgery/Hospital Dentistry, University of Michigan Medical School, Ann Arbor, MI (United States); Radawski, Jeffrey D. [Department of Radiation Oncology, University of Michigan Medical School, Ann Arbor, MI (United States); Vineberg, Karen A. [Department of Radiation Oncology, University of Michigan Medical School, Ann Arbor, MI (United States); Stroup, Cynthia [Department of Radiation Oncology, University of Michigan Medical School, Ann Arbor, MI (United States); Murdoch-Kinch, Carol-Anne [Department of Oral and Maxillofacial Surgery/Hospital Dentistry, University of Michigan Medical School, Ann Arbor, MI (United States); Zwetchkenbaum, Samuel R. [Department of Oral and Maxillofacial Surgery/Hospital Dentistry, University of Michigan Medical School, Ann Arbor, MI (United States); Eisbruch, Avraham [Department of Radiation Oncology, University of Michigan Medical School, Ann Arbor, MI (United States)]. E-mail: eisbruch@med.umich.edu

2007-06-01T23:59:59.000Z

403

Correlation of Osteoradionecrosis and Dental Events With Dosimetric Parameters in Intensity-Modulated Radiation Therapy for Head-and-Neck Cancer  

SciTech Connect (OSTI)

Purpose: Osteoradionecrosis (ORN) is a known complication of radiation therapy to the head and neck. However, the incidence of this complication with intensity-modulated radiation therapy (IMRT) and dental sequelae with this technique have not been fully elucidated. Methods and Materials: From December 2000 to July 2007, 168 patients from our institution have been previously reported for IMRT of the oral cavity, nasopharynx, larynx/hypopharynx, sinus, and oropharynx. All patients underwent pretreatment dental evaluation, including panoramic radiographs, an aggressive fluoride regimen, and a mouthguard when indicated. The median maximum mandibular dose was 6,798 cGy, and the median mean mandibular dose was 3,845 cGy. Patient visits were retrospectively reviewed for the incidence of ORN, and dental records were reviewed for the development of dental events. Univariate analysis was then used to assess the effect of mandibular and parotid gland dosimetric parameters on dental endpoints. Results: With a median clinic follow-up of 37.4 months (range, 0.8-89.6 months), 2 patients, both with oral cavity primaries, experienced ORN. Neither patient had preradiation dental extractions. The maximum mandibular dose and mean mandibular dose of the 2 patients were 7,183 and 6,828 cGy and 5812 and 5335 cGy, respectively. In all, 17% of the patients (n = 29) experienced a dental event. A mean parotid dose of >26 Gy was predictive of a subsequent dental caries, whereas a maximum mandibular dose >70 Gy and a mean mandibular dose >40 Gy were correlated with dental extractions after IMRT. Conclusions: ORN is rare after head-and-neck IMRT, but is more common with oral cavity primaries. Our results suggest different mechanisms for radiation-induced caries versus extractions.

Gomez, Daniel R., E-mail: dgomez@mdanderson.org [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Estilo, Cherry L. [Dental Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Wolden, Suzanne L.; Zelefsky, Michael J. [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Kraus, Dennis H.; Wong, Richard J.; Shaha, Ashok R.; Shah, Jatin P. [Department of Head and Neck Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Mechalakos, James G.; Lee, Nancy Y. [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States)

2011-11-15T23:59:59.000Z

404

Carbon Ion Radiation Therapy Improves the Prognosis of Unresectable Adult Bone and Soft-Tissue Sarcoma of the Head and Neck  

SciTech Connect (OSTI)

Purpose: To evaluate the safety and efficacy of carbon ion radiotherapy (C-ion RT) with 70.4 GyE for unresectable bone and soft-tissue sarcoma of the adult head and neck. Methods and Materials: Twenty-seven patients (mean age, 46.2 years) were enrolled in this prospective study on C-ion RT with 70.4 GyE/16 fractions (fr) between April 2001 and February 2008. The primary end points were acute and late reactions of normal tissues, local control rate, and overall survival rate. The secondary end point was efficacy of the treatment in comparison to historical results with 57.6 or 64.0 GyE/16 fr. Results: The 3-year local control rate and overall survival rate for all patients were 91.8% (95% confidence interval [CI] = 81.0-100%) and 74.1% (95% CI = 57.5-90.6%), respectively. Acute reaction of Grade 3 or more was observed in only 1 patient. With regard to late reactions, visual loss was observed in 1 patient and a Grade 3 reaction of the maxillary bone was observed in 4 patients. A comparison with historical results revealed that the local control rate with 70.4 GyE was significantly higher than that with 57.6 or 64.0 GyE (3-year, 91.8% vs. 23.6%, p < 0.0001). Furthermore, the overall survival with 70.4 GyE tended to be higher than that with 57.6 or 64.0 GyE (3-year, 74.1% vs. 42.9%, p = 0.09). Conclusion: C-ion RT with 70.4 GyE/16 fr for bone and soft-tissue sarcoma of the adult head and neck appears to be effective with acceptable toxicities in comparison to conventional RT and C-ion RT with lower doses.

Jingu, Keiichi [Research Center for Charged Particle Therapy, National Institute of Radiological Sciences (NIRS), Chiba (Japan); Department of Radiation Oncology, Tohoku University School of Medicine, Sendai (Japan); Tsujii, Hirohiko, E-mail: tsujii@nirs.go.jp [Research Center for Charged Particle Therapy, National Institute of Radiological Sciences (NIRS), Chiba (Japan); Mizoe, Jun-Etsu; Hasegawa, Azusa; Bessho, Hiroki; Takagi, Ryo; Morikawa, Takamichi [Research Center for Charged Particle Therapy, National Institute of Radiological Sciences (NIRS), Chiba (Japan); Tonogi, Morio [Department of Oral Medicine, Tokyo Dental College, Ichihara (Japan); Tsuji, Hiroshi; Kamada, Tadashi [Research Center for Charged Particle Therapy, National Institute of Radiological Sciences (NIRS), Chiba (Japan); Yamada, Shogo [Department of Radiation Oncology, Tohoku University School of Medicine, Sendai (Japan)

2012-04-01T23:59:59.000Z

405

Preliminary assessment/site inspection report. Volume 6. Appendix F-J. 104th Air Control Squadron, Coos Head Air National Guard Station, Oregon National Guard, Coos Bay Oregon. Report for January 1994-February 1995  

SciTech Connect (OSTI)

The Preliminary Assessment involved interviewing COOS Head employees (current formerly) to determine the extent of use and disposal of hazardous materials and waste. The site investigation involved field investigation of areas determined to be of concern due to use and disposal of hazardous materials/waste. Two areas of concern will further be investigated (AOC CK).

NONE

1995-11-01T23:59:59.000Z

406

Installation restoration program. Preliminary assessment/site inspection report. Volume 3. Appendix E. 104th Air Control Squadron Coos Head Air National Guard Station. Oregon Air National Guard Coos Bay, Oregon. Report for January 1994-February 1995  

SciTech Connect (OSTI)

The Preliminary Assessment involved interviewing, COOS Head employees (current and former) to determine the extent of use and disposal of hazardous materials and waste. The site investigation involved field investigation of areas determined to be of concern due to use and disposal of hazardous materials/waste. Two areas of concern will further be investigated (AOC CK).

NONE

1995-11-01T23:59:59.000Z

407

Installation restoration program. Preliminary assessment/site inspection report. Volume 3. Appendix E. 104th Air Control Squadron Coos Head Air National Guard Station. Oregon Air National Guard Coos Bay, Oregon. Report for January 1994-February 1995  

SciTech Connect (OSTI)

The Preliminary Assessment involved interviewing COOS Head employees (current and former) to determine the extent of use and disposal of hazardous materials waste. The site investigation involved field investigation of areas determined to be of concern due to use and disposal of hazardous materials/wastes. Two areas of concern will further be investigated (AOC CK).

NONE

1995-11-01T23:59:59.000Z

408

Installation restoration program. Preliminary assessment/site inspection report. Volume 3. Appendix E. 104th Air Control Squadron Coos Head Air National Guard Station. Oregon Air National Guard Coos Bay, Oregon. Report for January 1994-February 1995  

SciTech Connect (OSTI)

The Preliminary Assessment involved interviewing, COOS Head employees (current former) to determine the extent of use and disposal of hazardous materials and waste. The site investigation involved field investigation of areas determined to be of concern due to use and disposal of hazardous materials/wastes. Two areas of concern will further be investigated (AOC CK).

NONE

1995-11-01T23:59:59.000Z

409

Preliminary evaluation of multifield and single-field optimization for the treatment planning of spot-scanning proton therapy of head and neck cancer  

SciTech Connect (OSTI)

Purpose: Spot-scanning proton therapy (SSPT) using multifield optimization (MFO) can generate highly conformal dose distributions, but it is more sensitive to setup and range uncertainties than SSPT using single-field optimization (SFO). The authors compared the two optimization methods for the treatment of head and neck cancer with bilateral targets and determined the superior method on the basis of both the plan quality and the plan robustness in the face of setup and range uncertainties.Methods: Four patients with head and neck cancer with bilateral targets who received SSPT treatment in the authors' institution were studied. The patients had each been treated with a MFO plan using three fields. A three-field SFO plan (3F-SFO) and a two-field SFO plan (2F-SFO) with the use of a range shifter in the beam line were retrospectively generated for each patient. The authors compared the plan quality and robustness to uncertainties of the SFO plans with the MFO plans. Robustness analysis of each plan was performed to generate the two dose distributions consisting of the highest and the lowest possible doses (worst-case doses) from the spatial and range perturbations at every voxel. Dosimetric indices from the nominal and worst-case plans were compared.Results: The 3F-SFO plans generally yielded D95 and D5 values in the targets that were similar to those of the MFO plans. 3F-SFO resulted in a lower dose to the oral cavity than MFO in all four patients by an average of 9.9 Gy, but the dose to the two parotids was on average 6.7 Gy higher for 3F-SFO than for MFO. 3F-SFO plans reduced the variations of dosimetric indices under uncertainties in the targets by 22.8% compared to the MFO plans. Variations of dosimetric indices under uncertainties in the organs at risk (OARs) varied between organs and between patients, although they were on average 9.2% less for the 3F-SFO plans than for the MFO plans. Compared with the MFO plans, the 2F-SFO plans showed a reduced dose to the parotids for both the nominal dose and in the worst-case scenario, but the plan robustness in the target of the 2F-SFO plans was not notably greater than that of the MFO plans.Conclusions: Compared with MFO, 3F-SFO improves plan robustness in the targets but degrades dose sparing in the parotids in both the nominal and worst-case scenarios. Although 2F-SFO improves parotid sparing compared with MFO, it produces little improvement in plan robustness. Therefore, considering its tolerable target coverage and sparing of OARs in worst-case scenarios, the authors recommend MFO as the planning method for the treatment of head and neck cancer with bilateral targets.

Quan, Enzhuo M.; Liu, Wei; Wu, Richard; Zhang, Xiaodong; Zhu, X. Ronald; Mohan, Radhe [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States)] [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States); Li, Yupeng [Varian Medical Systems, Inc., Palo Alto, California 94304 (United States)] [Varian Medical Systems, Inc., Palo Alto, California 94304 (United States); Frank, Steven J. [Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States)] [Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States)

2013-08-15T23:59:59.000Z

410

Oral Mucositis Prevention By Low-Level Laser Therapy in Head-and-Neck Cancer Patients Undergoing Concurrent Chemoradiotherapy: A Phase III Randomized Study  

SciTech Connect (OSTI)

Purpose: Oral mucositis is a major complication of concurrent chemoradiotherapy (CRT) in head-and-neck cancer patients. Low-level laser (LLL) therapy is a promising preventive therapy. We aimed to evaluate the efficacy of LLL therapy to decrease severe oral mucositis and its effect on RT interruptions. Methods and Materials: In the present randomized, double-blind, Phase III study, patients received either gallium-aluminum-arsenide LLL therapy 2.5 J/cm{sup 2} or placebo laser, before each radiation fraction. Eligible patients had to have been diagnosed with squamous cell carcinoma or undifferentiated carcinoma of the oral cavity, pharynx, larynx, or metastases to the neck with an unknown primary site. They were treated with adjuvant or definitive CRT, consisting of conventional RT 60-70 Gy (range, 1.8-2.0 Gy/d, 5 times/wk) and concurrent cisplatin. The primary endpoints were the oral mucositis severity in Weeks 2, 4, and 6 and the number of RT interruptions because of mucositis. The secondary endpoints included patient-reported pain scores. To detect a decrease in the incidence of Grade 3 or 4 oral mucositis from 80% to 50%, we planned to enroll 74 patients. Results: A total of 75 patients were included, and 37 patients received preventive LLL therapy. The mean delivered radiation dose was greater in the patients treated with LLL (69.4 vs. 67.9 Gy, p = .03). During CRT, the number of patients diagnosed with Grade 3 or 4 oral mucositis treated with LLL vs. placebo was 4 vs. 5 (Week 2, p = 1.0), 4 vs. 12 (Week 4, p = .08), and 8 vs. 9 (Week 6, p = 1.0), respectively. More of the patients treated with placebo had RT interruptions because of mucositis (6 vs. 0, p = .02). No difference was detected between the treatment arms in the incidence of severe pain. Conclusions: LLL therapy was not effective in reducing severe oral mucositis, although a marginal benefit could not be excluded. It reduced RT interruptions in these head-and-neck cancer patients, which might translate into improved CRT efficacy.

Gouvea de Lima, Aline [Departamento de Radiologia, Disciplina de Oncologia, Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, SP (Brazil); Villar, Rosangela Correa [Instituto de Radiologia, Servico de Radioterapia, Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, SP (Brazil); Castro, Gilberto de, E-mail: gilberto.castro@usp.br [Department of Clinical Oncology, Instituto do Cancer do Estado de Sao Paulo, Sao Paulo, SP (Brazil); Antequera, Reynaldo [Divisao de Odontologia, Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, SP (Brazil); Gil, Erlon; Rosalmeida, Mauro Cabral [Instituto de Radiologia, Servico de Radioterapia, Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, SP (Brazil); Federico, Miriam Hatsue Honda; Snitcovsky, Igor Moises Longo [Departamento de Radiologia, Disciplina de Oncologia, Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, SP (Brazil)

2012-01-01T23:59:59.000Z

411

Dynamic Contrast-Enhanced MRI in Head-and-Neck Cancer: The Impact of Region of Interest Selection on the Intra- and Interpatient Variability of Pharmacokinetic Parameters  

SciTech Connect (OSTI)

Purpose: Dynamic contrast-enhanced (DCE) MRI-extracted parameters measure tumor microvascular physiology and are usually calculated from an intratumor region of interest (ROI). Optimal ROI delineation is not established. The valid clinical use of DCE-MRI requires that the variation for any given parameter measured within a tumor be less than that observed between tumors in different patients. This work evaluates the impact of tumor ROI selection on the assessment of intra- and interpatient variability. Method and Materials: Head and neck cancer patients received initial targeted therapy (TT) treatment with erlotinib and/or bevacizumab, followed by radiotherapy and concurrent cisplatin with synchronous TT. DCE-MRI data from Baseline and the end of the TT regimen (Lead-In) were analyzed to generate the vascular transfer function (K{sup trans}), the extracellular volume fraction (v{sub e}), and the initial area under the concentration time curve (iAUC{sub 1min}). Four ROI sampling strategies were used: whole tumor or lymph node (Whole), the slice containing the most enhancing voxels (SliceMax), three slices centered in SliceMax (Partial), and the 5% most enhancing contiguous voxels within SliceMax (95Max). The average coefficient of variation (aCV) was calculated to establish intrapatient variability among ROI sets and interpatient variability for each ROI type. The average ratio between each intrapatient CV and the interpatient CV was calculated (aRCV). Results: Baseline primary/nodes aRCVs for different ROIs not including 95Max were, for all three MR parameters, in the range of 0.14-0.24, with Lead-In values between 0.09 and 0.2, meaning a low intrapatient vs. interpatient variation. For 95Max, intrapatient CVs approximated interpatient CVs, meaning similar data dispersion and higher aRCVs (0.6-1.27 for baseline) and 0.54-0.95 for Lead-In. Conclusion: Distinction between different patient's primary tumors and/or nodes cannot be made using 95Max ROIs. The other three strategies are viable and equivalent for using DCE-MRI to measure head and neck cancer physiology.

Craciunescu, Oana I., E-mail: oana.craciunescu@duke.edu [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States); Yoo, David S. [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States); Cleland, Esi [GECAD Ghana Ltd., Acra (Ghana); Muradyan, Naira [iCAD Inc., Nashua, NH (United States); Carroll, Madeline D. [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States); MacFall, James R.; Barboriak, Daniel P. [Department of Radiology, Duke University Medical Center, Durham, NC (United States); Brizel, David M. [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States); Department of Surgery, Duke University Medical Center, Durham, NC (United States)

2012-03-01T23:59:59.000Z

412

Dental and maxillofacial abnormalities in long-term survivors of childhood cancer: effects of treatment with chemotherapy and radiation to the head and neck  

SciTech Connect (OSTI)

Sixty-eight long-term survivors of childhood cancer were evaluated for dental and maxillofacial abnormalities. Forty-five patients had received maxillofacial radiation for lymphoma, leukemia, rhabdomyosarcoma, and miscellaneous tumors. Forty-three of the 45 patients and the remaining 23 who had not received maxillofacial radiation also received chemotherapy. Dental and maxillofacial abnormalities were detected in 37 of the 45 (82%) radiated patients. Dental abnormalities comprised foreshortening and blunting of roots, incomplete calcification, premature closure of apices, delayed or arrested tooth development, and caries. Maxillofacial abnormalities comprised trismus, abnormal occlusal relationships, and facial deformities. The abnormalities were more severe in those patients who received radiation at an earlier age and at higher dosages. Possible chemotherapeutic effects in five of 23 patients who received treatment for tumors located outside the head and neck region comprised acquired amelogenesis imperfecta, microdontia of bicuspid teeth, and a tendency toward thinning of roots with an enlarged pulp chamber. Dental and maxillofacial abnormalities should be recognized as a major consequence of maxillofacial radiation in long-term survivors of childhood cancer, and attempts to minimize or eliminate such sequelae should involve an effective interaction between radiation therapists, and medical and dental oncologists.

Jaffe, N.; Toth, B.B.; Hoar, R.E.; Ried, H.L.; Sullivan, M.P.; McNeese, M.D.

1984-06-01T23:59:59.000Z

413

Non-planar ion-acoustic solitary waves and their head-on collision in a plasma with nonthermal electrons and warm adiabatic ions  

SciTech Connect (OSTI)

By using the model of Cairns et al.[Geophys. Rev. Lett. 22, 2709 (1995)], the head-on collision of cylindrical/spherical ion-acoustic solitary waves in an unmagnetized non-planar plasma consisting of warm adiabatic ions and nonthermally distributed electrons is investigated. The extended Poincare-Lighthill-Kuo perturbation method is used to derive the modified Korteweg-de Vries equations for ion-acoustic solitary waves in this plasma system. The effects of the plasma geometry m, the ion to electron temperature ratio {sigma}, and the nonthermality of the electron distribution {alpha} on the interaction of the colliding solitary waves are studied. It is found that the plasma geometries have a big impact on the phase shifts of solitary waves. Also it is important to note that the phase shifts induced by the collision of compressive and rarefactive solitary waves are very different. We point out that this study is useful to the investigations about the observations of electrostatic solitary structures in astrophysical as well as in experimental plasmas with nonthermal energetic electrons.

Han Jiuning; He Yonglin; Chen Yan; Zhang Kezhi; Ma Baohong [College of Physics and Electromechanical Engineering, Hexi University, Zhangye 734000 (China)

2013-01-15T23:59:59.000Z

414

Dynamic changes in the distribution and time course of bloodbrain barrier-permeative nitroxides in the mouse head with EPR imaging: visualization of blood flow in a mouse model of ischemia  

Science Journals Connector (OSTI)

Abstract Electron paramagnetic resonance (EPR) imaging using nitroxides as redox-sensitive probes is a powerful, noninvasive method that can be used under various physiological conditions to visualize changes in redox status that result from oxidative damage. Two bloodbrain barrier-permeative nitroxides, 3-hydroxymethyl-2,2,5,5-tetramethylpyrrolidine-1-oxyl (HMP) and 3-methoxycarbonyl-2,2,5,5-tetramethylpyrrolidine-1-yloxy (MCP), have been widely used as redox-sensitive probes in the brains of small animals, but their in vivo distribution and properties have not yet been analyzed in detail. In this study, a custom-made continuous-wave three-dimensional (3D) EPR imager was used to obtain 3D EPR images of mouse heads using MCP or HMP. This EPR imager made it possible to take 3D EPR images reconstructed from data from 181 projections acquired every 60s. Using this improved EPR imager and magnetic resonance imaging, the distribution and reduction time courses of HMP and MCP were examined in mouse heads. EPR images of living mice revealed that HMP and MCP have different distributions and different time courses for entering the brain. Based on the pharmacokinetics of the reduction reactions of HMP and MCP in the mouse head, the half-lives of HMP and MCP were clearly and accurately mapped pixel by pixel. An ischemic mouse model was prepared, and the half-life of MCP was mapped in the mouse head. Compared to the half-life in control mice, the half-life of MCP in the ischemic model mouse brain was significantly increased, suggesting a shift in the redox balance. This in vivo EPR imaging method using BBB-permeative MCP is a useful noninvasive method for assessing changes in the redox status in mouse brains under oxidative stress.

Miho C. Emoto; Hideo Sato-Akaba; Hiroshi Hirata; Hirotada G. Fujii

2014-01-01T23:59:59.000Z

415

Department Heads Meeting: July 15, 2010 1 Department Heads Meeting  

E-Print Network [OSTI]

. In concrete practical terms how can we improve here? ­ Conduct of operations: Series of small incidents

Wechsler, Risa H.

416

DEPT HEAD CHECKLIST Updated Aug 2011 Page 1 DEPARTMENT HEAD  

E-Print Network [OSTI]

. G Unplug computers, printers, and all other electrical equipment (except freezers and refrigerators in the dumpster outside of the building and not in your office trashcan. I Turn down refrigerators and freezers). H Empty all refrigerators of food and other items that will spoil. Please dispose of these materials

Li, X. Rong

417

The Role of Computed Tomography in the Management of the Neck After Chemoradiotherapy in Patients With Head-and-Neck Cancer  

SciTech Connect (OSTI)

Purpose: The aim of this study was to describe the outcome in patients with head-and neck-squamous cell carcinoma (HNSCC) followed up without neck dissection (ND) after concomitant chemoradiotherapy (CRT) based on computed tomography (CT) response. The second objective was to establish CT characteristics that can predict which patients can safely avoid ND. Methods and Materials: Between 1998 and 2007, 369 patients with node-positive HNSCC were treated with primary CRT at our institution. After a clinical and a radiologic evaluation based on CT done 6 to 8 weeks after CRT, patients were labeled with a complete neck response (CR) or with a partial neck response (PR). Results: The median follow-up was 44 months. The number of patients presenting with N3, N2, or N1 disease were 54 (15%), 268 (72%), and 47 (13%), respectively. After CRT, 263 (71%) patients reached a CR, and 253 of them did not undergo ND. Ninety-six patients reached a PR and underwent ND. Of those, 34 (35%) had residual disease on pathologic evaluation. A regression of the diameter of {>=}80% and a residual largest diameter of 15 mm of nodes had negative pathologic predictive values of 100% and 86%, respectively. The 3-year regional control and survival rates were not different between patients with CR who had no ND and patients with PR followed by ND. Conclusion: Node-positive patients presenting a CR as determined by CT evaluation 6 to 8 weeks after CRT had a low rate of regional recurrence without ND. This study also suggests that lymph node residual size and percentage of regression on CT after CRT may be useful criteria to guide clinical decisions regarding neck surgery. Those results can help diminish the number of ND procedures with negative results and their associated surgical complications.

Clavel, Sebastien, E-mail: sebastien.clavel@umontreal.ca [Department of Radiation Oncology, Centre hospitalier de l'Universite de Montreal, Montreal, Quebec (Canada); Charron, Marie-Pierre [Faculte de medicine, Universite de Montreal, Montreal, Quebec (Canada); Belair, Manon [Department of Radiology, Centre hospitalier de l'Universite de Montreal, Montreal, Quebec (Canada); Delouya, Guila; Fortin, Bernard; Despres, Philippe [Department of Radiation Oncology, Centre hospitalier de l'Universite de Montreal, Montreal, Quebec (Canada); Soulieres, Denis [Department of Medical Oncology, Centre hospitalier de l'Universite de Montreal, Montreal, Quebec (Canada); Filion, Edith [Department of Radiation Oncology, Centre hospitalier de l'Universite de Montreal, Montreal, Quebec (Canada); Guertin, Louis [Department of Head and Neck Surgery, Centre hospitalier de l'Universite de Montreal, Montreal, Quebec (Canada); and others

2012-02-01T23:59:59.000Z

418

Two-Year and Lifetime Cost-Effectiveness of Intensity Modulated Radiation Therapy Versus 3-Dimensional Conformal Radiation Therapy for Head-and-Neck Cancer  

SciTech Connect (OSTI)

Purpose: To assess the cost-effectiveness of intensity modulated radiation therapy (IMRT) versus 3-dimensional conformal radiation therapy (3D-CRT) in the treatment of head-and neck-cancer (HNC). Methods and Materials: We used a Markov model to simulate radiation therapy-induced xerostomia and dysphagia in a hypothetical cohort of 65-year-old HNC patients. Model input parameters were derived from PARSPORT (CRUK/03/005) patient-level trial data and quality-of-life and Medicare cost data from published literature. We calculated average incremental cost-effectiveness ratios (ICERs) from the US health care perspective as cost per quality-adjusted life-year (QALY) gained and compared our ICERs with current cost-effectiveness standards whereby treatment comparators less than $50,000 per QALY gained are considered cost-effective. Results: In the first 2 years after initial treatment, IMRT is not cost-effective compared with 3D-CRT, given an average ICER of $101,100 per QALY gained. However, over 15 years (remaining lifetime on the basis of average life expectancy of a 65-year-old), IMRT is more cost-effective at $34,523 per QALY gained. Conclusion: Although HNC patients receiving IMRT will likely experience reduced xerostomia and dysphagia symptoms, the small quality-of-life benefit associated with IMRT is not cost-effective in the short term but may be cost-effective over a patient's lifetime, assuming benefits persist over time and patients are healthy and likely to live for a sustained period. Additional data quantifying the long-term benefits of IMRT, however, are needed.

Kohler, Racquel E. [Department of Health Policy and Management, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (United States); Sheets, Nathan C. [Department of Radiation Oncology, University of North Carolina Hospitals, Chapel Hill, North Carolina (United States); Wheeler, Stephanie B. [Department of Health Policy and Management, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (United States); Nutting, Chris [Royal Marsden Hospital, London, United Kindom (United Kingdom); Hall, Emma [Clinical Trials and Statistics Unit, Division of Clinical Studies, Institute of Cancer Research, London (United Kingdom); Chera, Bhishamjit S., E-mail: bchera@med.unc.edu [Department of Radiation Oncology, University of North Carolina Hospitals, Chapel Hill, North Carolina (United States)

2013-11-15T23:59:59.000Z

419

HEAD INJURY ASSESSMENT IN JUVENILE CHINOOK USING THE ALPHA II-SPECTRIN BIOMARKER: EFFECTS OF PRESSURE CHANGES AND PASSAGE THROUGH A REMOVABLE SPILLWAY WEIR  

SciTech Connect (OSTI)

The cytoskeletal protein alpha II-spectrin has specifi c neurodegenerative mechanisms that allow the necrotic (injury-induced) and apoptotic (non-injury-induced) pathways of proteolysis to be differentiated in an immunoblot. Consequently, ?II-spectrin breakdown products (SBDPs) are potential biomarkers for diagnosing traumatic brain injury (TBI). The purpose of the following investigation, consisting of two studies, was to evaluate the utility of the spectrin biomarker in diagnosing TBI in fi sh that travel through hydroelectric dams in the Columbia and Snake Rivers. The fi rst study used hyperbaric pressure chambers to simulate the pressure changes that affect fi sh during passage through a Federal Columbia River Power System (FCRPS) Kaplan turbine. The second study tested the effect of a removable spillway weir (RSW) on the passage of juvenile chinook (Oncorhynchus tshawytscha). This study was conducted in tandem with a balloon-tag study by the U.S. Army Corps of Engineers. Brain samples from fi sh were collected and analyzed using an immunoblot for SBDPs, and imaging software was used to quantify the protein band density and determine the ratio of cleaved protein to total protein. The biomarker analyses found higher SBDP expression levels in fi sh that were exposed to lower pressure nadirs and fi sh that passed through the RSW at a deep orientation. In general, the incidence of injuries observed after treatment positively correlated with expression levels, suggesting that the biomarker method of analysis is comparable to traditional methods of injury assessment. It was also found that, for some treatments, the 110 kDa spectrin fragment (SBDP 110) correlated more strongly with necrotic head injury incidence and mortality rates than did the total cleaved protein or the 120 kDa fragment. These studies will be informative in future decisions regarding the design of turbines and fi sh passage structures in hydroelectric dams and will hopefully contribute to the development of faster and more accurate techniques for diagnosing TBI in fi sh.

Jonason, C.; Miracle, A.

2009-01-01T23:59:59.000Z

420

Dynamic Contrast-Enhanced Magnetic Resonance Imaging as a Predictor of Outcome in Head-and-Neck Squamous Cell Carcinoma Patients With Nodal Metastases  

SciTech Connect (OSTI)

Purpose: Dynamic contrast-enhanced MRI (DCE-MRI) can provide information regarding tumor perfusion and permeability and has shown prognostic value in certain tumors types. The goal of this study was to assess the prognostic value of pretreatment DCE-MRI in head and neck squamous cell carcinoma (HNSCC) patients with nodal disease undergoing chemoradiation therapy or surgery. Methods and Materials: Seventy-four patients with histologically proven squamous cell carcinoma and neck nodal metastases were eligible for the study. Pretreatment DCE-MRI was performed on a 1.5T MRI. Clinical follow-up was a minimum of 12 months. DCE-MRI data were analyzed using the Tofts model. DCE-MRI parameters were related to treatment outcome (progression-free survival [PFS] and overall survival [OS]). Patients were grouped as no evidence of disease (NED), alive with disease (AWD), dead with disease (DOD), or dead of other causes (DOC). Prognostic significance was assessed using the log-rank test for single variables and Cox proportional hazards regression for combinations of variables. Results: At last clinical follow-up, for Stage III, all 12 patients were NED. For Stage IV, 43 patients were NED, 4 were AWD, 11 were DOD, and 4 were DOC. K{sup trans} is volume transfer constant. In a stepwise Cox regression, skewness of K{sup trans} (volume transfer constant) was the strongest predictor for Stage IV patients (PFS and OS: p <0.001). Conclusion: Our study shows that skewness of K{sup trans} was the strongest predictor of PFS and OS in Stage IV HNSCC patients with nodal disease. This study suggests an important role for pretreatment DCE-MRI parameter K{sup trans} as a predictor of outcome in these patients.

Shukla-Dave, Amita, E-mail: davea@mskcc.org [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Lee, Nancy Y. [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Jansen, Jacobus F.A. [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Thaler, Howard T. [Department of Epidemiology and Biostatistics, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Stambuk, Hilda E. [Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Fury, Matthew G. [Department of Medical Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Patel, Snehal G. [Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Moreira, Andre L. [Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Sherman, Eric [Department of Medical Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Karimi, Sasan [Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Wang, Ya [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Kraus, Dennis; Shah, Jatin P. [Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Pfister, David G. [Department of Medical Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); and others

2012-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Subclavian Vein Versus Arm Vein for Totally Implantable Central Venous Port for Patients with Head and Neck Cancer: A Retrospective Comparative Analysis  

SciTech Connect (OSTI)

Purpose: This study was designed to compare central venous ports (CVP) from two different routes of venous access-the subclavian vein and arm vein-in terms of safety for patients with head and neck cancer (HNC). Methods: Patients with HNC who underwent image-guided implantations of CVPs were retrospectively evaluated. All CVPs were implanted under local anesthesia. Primary outcome measurements were rates and types of adverse events (AEs). Secondary outcomes included technical success and rate and reason of CVP removal. Results: A total of 162 patients (subclavian port group, 47; arm port group, 115) were included in this study. Technical success was achieved in all patients. The median follow-up period was 94 (range, 1-891) days. Two patients in the subclavian port group experienced periprocedural complications. Postprocedural AEs were observed in 8.5 and 22.6% of the subclavian port and arm port group patients, respectively (P = 0.044). Phlebitis and system occlusions were observed only in the arm port group. The rate of infection was not significantly different between the two groups. The CVP was removed in 34 and 39.1% of the subclavian port and arm port patients, respectively. Conclusions: Both subclavian and arm CVPs are feasible in patients with HNC. AEs were more frequent in the arm port group; thus, the arm port is not recommended as the first choice for patients with HNC. However, further experience is needed to improve the placement technique and the maintenance of CVPs and a prospective analysis is warranted.

Akahane, Akio, E-mail: a.akahane@gmail.com; Sone, Miyuki; Ehara, Shigeru; Kato, Kenichi; Tanaka, Ryoichi; Nakasato, Tatsuhiko [Iwate Medical University School of Medicine, Department of Radiology (Japan)

2011-12-15T23:59:59.000Z

422

Competitions 1 Running head: Competitions  

E-Print Network [OSTI]

to enter a new market or invest in increased capacity, managers and investors are assumed to have assessed their competitors in order to make decisions about entry into new markets and investment in existing markets

423

Radiant, convective and heat release characterization of vegetation fire Frdric Morandini*, Yolanda Perez-Ramirez, Virginie Tihay, Paul-Antoine Santoni, Toussaint  

E-Print Network [OSTI]

of the fire and the involved combustion processes. The heat released during fire spread cannot be a to assess this quantity were also tested. Combustion efficiency and effective heat of combustion were mixpc , Specific heat of the mixture d Duct diameter (0.4 m) E Heat of combustion F view factor h Fuel

Paris-Sud XI, Université de

424

MILP control of aggregate Eulerian network airspace models Charles-Antoine Robelin1, Dengfeng Sun2, Guoyuan Wu3 and Alexandre M. Bayen4  

E-Print Network [OSTI]

above. This work is supported by NASA, under Task Order TO.048.0.BS.AF. 1Ph.D. candidate, Dept. of Civil

425

Momentum flow in black-hole binaries. II. Numerical simulations of equal-mass, head-on mergers with antiparallel spins  

SciTech Connect (OSTI)

Research on extracting science from binary-black-hole (BBH) simulations has often adopted a 'scattering matrix' perspective: given the binary's initial parameters, what are the final hole's parameters and the emitted gravitational waveform? In contrast, we are using BBH simulations to explore the nonlinear dynamics of curved spacetime. Focusing on the head-on plunge, merger, and ringdown of a BBH with transverse, antiparallel spins, we explore numerically the momentum flow between the holes and the surrounding spacetime. We use the Landau-Lifshitz field-theory-in-flat-spacetime formulation of general relativity to define and compute the density of field energy and field momentum outside horizons and the energy and momentum contained within horizons, and we define the effective velocity of each apparent and event horizon as the ratio of its enclosed momentum to its enclosed mass-energy. We find surprisingly good agreement between the horizons' effective and coordinate velocities. During the plunge, the holes experience a frame-dragging-induced acceleration orthogonal to the plane of their spins and their infall ('downward'), and they reach downward speeds of order 1000 km/s. When the common apparent horizon forms (and when the event horizons merge and their merged neck expands), the horizon swallows upward field momentum that resided between the holes, causing the merged hole to accelerate in the opposite ('upward') direction. As the merged hole and the field energy and momentum settle down, a pulsational burst of gravitational waves is emitted, and the merged hole has a final effective velocity of about 20 km/s upward, which agrees with the recoil velocity obtained by measuring the linear momentum carried to infinity by the emitted gravitational radiation. To investigate the gauge dependence of our results, we compare generalized harmonic and Baumgarte-Shapiro-Shibata-Nakamura-moving-puncture evolutions of physically similar initial data; although the generalized harmonic and Baumgarte-Shapiro-Shibata-Nakamura-moving-puncture simulations use different gauge conditions, we find remarkably good agreement for our results in these two cases. We also compare our simulations with the post-Newtonian trajectories and near-field energy-momentum.

Lovelace, Geoffrey [Center for Radiophysics and Space Research, Cornell University, Ithaca, New York, 14853 (United States); Chen Yanbei; Cohen, Michael; Kaplan, Jeffrey D.; Keppel, Drew; Matthews, Keith D.; Nichols, David A.; Scheel, Mark A.; Sperhake, Ulrich [Theoretical Astrophysics 350-17, California Institute of Technology, Pasadena, California 91125 (United States)

2010-09-15T23:59:59.000Z

426

Impact of the energy loss spatial profile and shear viscosity to entropy density ratio for the Mach cone vs. head shock signals produced by a fast moving parton in a quark-gluon plasma  

E-Print Network [OSTI]

We compute the energy and momentum deposited by a fast moving parton in a quark-gluon plasma using linear viscous hydrodynamics with an energy loss per unit length profile proportional to the path length and with different values of the shear viscosity to entropy density ratio. We show that when varying these parameters, the transverse modes still dominate over the longitudinal ones and thus energy and momentum is preferentially deposited along the head-shock, as in the case of a constant energy loss per unit length profile and the lowest value for the shear viscosity to entropy density ratio.

Alejandro Ayala; Jorge David Castano-Yepes; Isabel Dominguez; Maria Elena Tejeda-Yeomans

2014-12-18T23:59:59.000Z

427

Smolt Monitoring at the Head of Lower Granite Reservoir and Lower Granite Dam; Smolt Monitoring by Federal and Non-Federal Entities, 2001-2002 Annual Report.  

SciTech Connect (OSTI)

This project monitored the daily passage of chinook salmon Oncorhynchus tshawytscha, steelhead trout O. mykiss, and sockeye salmon smolts O. nerka during the 2001 spring out-migration at migrant traps on the Snake River and Salmon River. In 2001 fish management agencies released significant numbers of hatchery chinook salmon and steelhead trout above Lower Granite Dam that were not marked with a fin clip or coded-wire tag. Generally, these fish were distinguishable from wild fish by the occurrence of fin erosion. Total annual hatchery chinook salmon catch at the Snake River trap was 11% of the 2000 numbers. The wild chinook catch was 3% of the previous year's catch. Hatchery steelhead trout catch was 49% of 2000 numbers. Wild steelhead trout catch was 69% of 2000 numbers. The Snake River trap collected 28 age-0 chinook salmon. During 2001 the Snake River trap captured zero hatchery and zero wild/natural sockeye salmon and six hatchery coho salmon O. kisutch. Differences in trap catch between years are due to fluctuations not only in smolt production, but also differences in trap efficiency and duration of trap operation associated with flow. The significant reduction in catch during 2001 was due to a reduction in hatchery chinook production (60% of 2000 release) and due to extreme low flows. Trap operations began on March 11 and were terminated on June 29. The trap was out of operation for a total of two days due to mechanical failure or debris. Hatchery chinook salmon catch at the Salmon River trap was 47% and wild chinook salmon catch was 67% of 2000 numbers. The hatchery steelhead trout collection in 2001 was 178% of the 2000 numbers. Wild steelhead trout collection in 2001 was 145% of the previous year's catch. Trap operations began on March 11 and were terminated on June 8 due to the end of the smolt monitoring season. There were no days where the trap was out of operation due to high flow or debris. The decrease in hatchery chinook catch in 2001 was due to a reduction in hatchery production (39% of 2000 releases). The increase in hatchery and wild steelhead trap catch is due to the ability to operate the trap in the thalweg for a longer period of time because of the extreme low flow condition in 2001. Travel time (d) and migration rate (km/d) through Lower Granite Reservoir for PIT-tagged chinook salmon and steelhead trout marked at the head of the reservoir were affected by discharge. There were not enough hatchery and wild chinook salmon tagged at the Snake River trap in 2001 to allow migration rate/discharge analysis. For steelhead trout tagged at the Snake River trap, statistical analysis of 2001 data detected a significant relation between migration rate and Lower Granite Reservoir inflow discharge. For hatchery and wild steelhead trout, there was a 2.2-fold and a 1.5-fold increase in migration rate in, respectively, between 50 and 100 kcfs. Travel time and migration rate to Lower Granite Dam for fish marked at the Salmon River trap were calculated. Statistical analysis of the 2001 data detected a significant relation between migration rate and Lower Granite Reservoir inflow discharge for hatchery and wild chinook salmon and hatchery and wild steelhead trout. Migration rate increased 3.7-fold for hatchery chinook salmon and 2.5-fold for wild chinook salmon between 50 and 100 kcfs. For hatchery steelhead there was a 1.6-fold increase in migration rate, and for wild steelhead trout there was a 2.2-fold increase between 50 kcfs and 100 kcfs. Fish tagged with passive integrated transponder (PIT) tags at the Snake River trap were interrogated at four dams with PIT tag detection systems (Lower Granite, Little Goose, Lower Monumental, and McNary dams). Because of the addition of the fourth interrogation site (Lower Monumental) in 1993, cumulative interrogation data is not comparable with the prior five years (1988-1992). Cumulative interrogations at the four dams for fish marked at the Snake River trap were 86% for hatchery chinook, 70% for wild chinook, 71% for hatchery steelhead, and 89% for wild steelhead. Cumulat

Buettner, Edwin W.; Putnam, Scott A.

2003-06-01T23:59:59.000Z

428

Smolt Monitoring at the Head of Lower Granite Reservoir and Lower Granite Dam; Smolt Monitoring by Federal and Non-Federal Entities, 2000 Annual Report.  

SciTech Connect (OSTI)

This project monitored the daily passage of chinook salmon Oncorhynchus tshawytscha, steelhead trout O. mykiss, and sockeye salmon smolts O. nerka during the 2000 spring out-migration at migrant traps on the Snake River and Salmon River. In 2000 the Nez Perce Tribe released significant numbers of hatchery chinook salmon and steelhead trout above Lower Granite Dam that were not marked with a fin clip or coded-wire tag. Generally, these fish were distinguishable from wild fish by the occurrence of fin erosion. Total annual hatchery chinook salmon catch at the Snake River trap was 36% of the 1999 number. The wild chinook catch was 34% of the previous year's catch. Hatchery steelhead trout catch was 121% of 1999 numbers. Wild steelhead trout catch was 139% of 1999 numbers. The Snake River trap collected 689 age-0 chinook salmon. During 2000, the Snake River trap captured 40 hatchery and 92 wild/natural sockeye salmon and 159 hatchery coho salmon O. kisutch. Differences in trap catch between years are due to fluctuations not only in smolt production, but also differences in trap efficiency and duration of trap operation associated with high flows. Trap operations began on March 13 and were terminated for the season due to high flows on June 16. There were no down days due to high flows or debris. Hatchery chinook salmon catch at the Salmon River trap was 96%, and wild chinook salmon catch was 66% of 1999 numbers. The hatchery steelhead trout collection in 2000 was 90% of the 1999 numbers. Wild steelhead trout collection in 2000 was 147% of the previous years catch. Trap operations began on March 13 and were terminated for the season due to high flows on May 22. There were no days where the trap was out of operation due to high flow or debris. Travel time (d) and migration rate (km/d) through Lower Granite Reservoir for passive integrated transponder (PIT) tagged chinook salmon and steelhead trout, marked at the head of the reservoir, were affected by discharge. For fish tagged at the Snake River trap, statistical analysis of 2000 data detected a significant relation between migration rate and discharge. For hatchery and wild chinook salmon, there was a 3.0 and 16.2-fold increase in migration rate, respectively, between 50 and 100 kcfs. For hatchery steelhead, there was a 2.7-fold increase in migration rate, respectively, between 50 kcfs and 100 kcfs. The statistical analysis could not detect a significant relation between migration rate and discharge for wild steelhead in 2000. For fish marked at the Salmon River trap, statistical analysis of the 2000 data detected a significant relation between migration rate and discharge for hatchery chinook salmon at the 0.05 level of significance and at the 0.1 level of significance for wild chinook salmon. Migration rate increased 3.2- and 1.9-fold, respectively, between 50 and 100 kcfs. For hatchery steelhead there was a 1.5-fold increase in migration rate between 50 kcfs and 100 kcfs. Insufficient numbers of wild steelhead trout were PIT tagged at the Salmon River trap to estimate travel time and migration rate to Lower Granite Dam. Fish tagged with PIT tags at the Snake River trap were interrogated at four dams with PIT tag detection systems (Lower Granite, Little Goose, Lower Monumental, and McNary dams). Because of the addition of the fourth interrogation site (Lower Monumental) in 1993, cumulative interrogation data is not comparable with the prior five years (1988-1992). Cumulative interrogations at the four dams for fish marked at the Snake River trap were 57% for hatchery chinook, 65% for wild chinook, 73% for hatchery steelhead and 71% for wild steelhead. Cumulative interrogations at the four dams for fish marked at the Salmon River trap were 53% for hatchery chinook, 64% for wild chinook salmon, 68% for hatchery steelhead trout, and 65% for wild steelhead trout.

Buettner, Edwin W.; Putnam, Scott A.

2002-08-01T23:59:59.000Z

429

Long-Term Outcome and Morbidity After Treatment With Accelerated Radiotherapy and Weekly Cisplatin for Locally Advanced Head-and-Neck Cancer: Results of a Multidisciplinary Late Morbidity Clinic  

SciTech Connect (OSTI)

Purpose: To evaluate the long-term outcome and morbidity after intensified treatment for locally advanced head-and-neck cancer. Methods and Materials: Between May 2003 and December 2007, 77 patients with Stage III to IV head-and-neck cancer were treated with curative intent. Treatment consisted of accelerated radiotherapy to a dose of 68 Gy and concurrent cisplatin. Long-term survivors were invited to a multidisciplinary outpatient clinic for a comprehensive assessment of late morbidity with special emphasis on dysphagia, including radiological evaluation of swallowing function in all patients. Results: Compliance with the treatment protocol was high, with 87% of the patients receiving at least five cycles of cisplatin and all but 1 patient completing the radiotherapy as planned. The 5-year actuarial disease-free survival and overall survival rates were 40% and 47%, respectively. Locoregional recurrence-free survival at 5 years was 61%. The 5-year actuarial rates of overall late Radiation Therapy Oncology Group (RTOG)/European Organization for Research and Treatment of Cancer (EORTC) Grade 3 and Grade 4 toxicity were 52% and 25% respectively. Radiologic evaluation after a median follow-up of 44 months demonstrated impaired swallowing in 57% of the patients, including 23% with silent aspiration. Subjective assessment using a systematic scoring system indicated normalcy of diet in only 15.6% of the patients. Conclusion: This regimen of accelerated radiotherapy with weekly cisplatin produced favorable tumor control rates and survival rates while compliance was high. However, comprehensive assessment by a multidisciplinary team of medical and paramedical specialists revealed significant long-term morbidity in the majority of the patients, with dysphagia being a major concern.

Ruetten, Heidi, E-mail: h.rutten@rther.umcn.nl [Department of Radiation Oncology, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands); Pop, Lucas A.M.; Janssens, Geert O.R.J. [Department of Radiation Oncology, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands); Takes, Robert P. [Department of Otorhinolaryngology and Head and Neck Surgery, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands); Knuijt, Simone [Department of Rehabilitation/Speech Pathology, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands); Rooijakkers, Antoinette F. [Department of Oral and Maxillofacial Surgery, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands); Berg, Manon van den [Department of Gastroenterology-Dietetics, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands); Merkx, Matthias A. [Department of Oral and Maxillofacial Surgery, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands); Herpen, Carla M.L. van [Department of Medical Oncology, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands); Kaanders, Johannes H.A.M. [Department of Radiation Oncology, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands)

2011-11-15T23:59:59.000Z

430

PRIMARY HEADING: ARIAL NARROW BOLD 22PT  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Use of Fossil Energy Resources Use of Fossil Energy Resources A Challenge to Technology, Policy, and International Cooperation Klaus S. Lackner Lenfest Center For Sustainable Energy Columbia University May, 2008 Sustainable energy development is not about limiting access to energy * low cost, plentiful, and clean energy for all * Energy is central to sustainable growth * Energy can overcome all other limits Environment Minerals Water Food Energy The Challenge: Holding the Stock of CO 2 constant Constant emissions at 2010 rate 33% of 2010 rate 10% of 2010 rate 0% of 2010 rate Extension of Historic Growth Rates 560 ppm 280 ppm IPCC Model Simulations of CO 2 Emissions Growth in Emissions 0 2 4 6 8 10 12 14 16 18 2000 2010 2020 2030 2040 2050 2060 2070 2080 2090 2100 Year Fractional Change Constant Growth 1.6% Plus Population Growth to 10 billion

431

Wind energy for low head irrigation  

SciTech Connect (OSTI)

An air-lift pump utilizing a wind turbine driven air compressor is a viable method of furnishing irrigation water for the establishment of a tree shelter belt. The performance characteristics of the air-lift pump are quantified for use in a design procedure.

Wiersma, J.L.; Bender, A.R.

1982-12-01T23:59:59.000Z

432

Space science: British head for French lab  

Science Journals Connector (OSTI)

... the Paris area, and will take advantage of the proximity to LURE, the Orsay synchroton radiation source, for calibration of optical instruments from the X-ray region to the ...

Robert Walgate

1986-01-02T23:59:59.000Z

433

Uranium Enrichment: Heading for a Cliff?  

Science Journals Connector (OSTI)

...pay TVA," says Longenecker, who adds that...disgrace," says Longenecker. The charge has...industrial customers John Longenecker. "The only way...more efficient gas centrifuge process. By the...not until early 1985 that DOE took drastic...

COLIN NORMAN

1987-05-22T23:59:59.000Z

434

BLUETEC- Heading for 50 State Diesel  

Broader source: Energy.gov [DOE]

Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs.

435

Electro-optical voltage sensor head  

DOE Patents [OSTI]

A miniature electro-optic voltage sensor system capable of accurate operation at high voltages. The system employs a transmitter, a sensor disposed adjacent to but out of direct electrical contact with a conductor on which the voltage is to be measured, a detector, and a signal processor. The transmitter produces a beam of electromagnetic radiation which is routed into the sensor where the beam undergoes the Pockels electro-optic effect. The electro-optic effect causes phase shifting in the beam, which is in turn converted to a pair of independent beams, from which the voltage of a system based on its E-field is determined when the two beams are normalized by the signal processor. The sensor converts the beam by splitting the beam in accordance with the axes of the beam's polarization state (an ellipse whose ellipticity varies between -1 and +1 in proportion to voltage) into at least two AM signals. These AM signals are fed into a signal processor and processed to determine the voltage between a ground conductor and the conductor on which voltage is being measured.

Woods, Gregory K. (Idaho Falls, ID)

1998-01-01T23:59:59.000Z

436

Uranium Enrichment: Heading for a Cliff?  

Science Journals Connector (OSTI)

...key Senate energy subcommit-tee...at recent hearings. Unless...1960s, when energy consumption...or 7% a year. DOE anticipated...charge for fiscal year 1987...until early 1985 that DOE...enabled the department to reduce...over the years-about...Treasury in fiscal year 1988...the Senate Energy Committee...separation, or AVLIS, the pro-cess...

COLIN NORMAN

1987-05-22T23:59:59.000Z

437

Organic Trends Where are we headed??  

E-Print Network [OSTI]

, 2011 · (2) Nestle s acquisitions of Cadbury (and Green & Black s) in January, 2010, and Sweet Leaf Tea minerals · Enhance water infiltration & holding capacity · Enhance root penetration · Secrete plant growth soil diseases · Detoxify soils · Increase water and nutrient uptake #12;Lime Materials · Calcitic

438

Heading into the Amendment Process: Hydrosystem Mitigation  

E-Print Network [OSTI]

reforms: Implementation of l ll d t d h t h iti ti lllegally mandated hatchery mitigation, as well uncertainties. Standardized metrics, protocols, reporting and HLIs are being adopted. A number of reforms

439

Rotational flow in gravity current heads  

Science Journals Connector (OSTI)

...figure 1 was obtained with the help of Barbara Turnbull and Perry Bartelt at the Swiss Federal Institute for Avalanche Research (SLF) during a visit by the author funded by the Swiss National Science Foundation. The author would like to thank an anonymous...

2005-01-01T23:59:59.000Z

440

Transitive associations 1 Running head: TRANSITIVE ASSOCIATIONS  

E-Print Network [OSTI]

transitions; across-pair associations (e.g. A-C) showed no evidence for asymmetry. While this pattern; Kahana, Howard, Zaromb, & Wingfield, 2002; Klein, Addis, & Kahana, 2005) estimates the probability

Howard, Marc

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

MEMORANDUM FOR HEADS OF DEPARTMENTAL ELEMENTS FROM:  

Energy Savers [EERE]

is stipulated and endorsed within OMB's Circular A-l 1. Given current fiscal dynamics (price of fuel and commodities), now more than ever, requests for 1 1 1 funding on projects...

442

Flowers to head new European Science Foundation  

Science Journals Connector (OSTI)

... Reverdin, a Greek scholar and Chairman of the Swiss Fond National and Dr P. Riis, a Danish physician. Secretary-General of the ESF will be Dr F. Schrieider, ...

Brian Flowers

1974-11-29T23:59:59.000Z

443

Mechanical Engineering Division Head | Princeton Plasma Physics...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

design and analysis of large, complex state-of-the-art electromagnetic and mechanical systems used for experimental magnetic fusion research. The Mechanical Engineering...

444

26 April 2013 Dear Head Teacher  

E-Print Network [OSTI]

's response to the Senior Phase of Curriculum for Excellence (CfE) as detailed in our Undergraduate Admissions of Heriot-Watt University's admissions policy response to the delivery of the CfE Senior Phase, as well

445

Tumor Metabolism and Perfusion in Head and Neck Squamous Cell Carcinoma: Pretreatment Multimodality Imaging With {sup 1}H Magnetic Resonance Spectroscopy, Dynamic Contrast-Enhanced MRI, and [{sup 18}F]FDG-PET  

SciTech Connect (OSTI)

Purpose: To correlate proton magnetic resonance spectroscopy ({sup 1}H-MRS), dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI), and {sup 18}F-labeled fluorodeoxyglucose positron emission tomography ([{sup 18}F]FDG PET) of nodal metastases in patients with head and neck squamous cell carcinoma (HNSCC) for assessment of tumor biology. Additionally, pretreatment multimodality imaging was evaluated for its efficacy in predicting short-term response to treatment. Methods and Materials: Metastatic neck nodes were imaged with {sup 1}H-MRS, DCE-MRI, and [{sup 18}F]FDG PET in 16 patients with newly diagnosed HNSCC, before treatment. Short-term patient radiological response was evaluated at 3 to 4 months. Correlations among {sup 1}H-MRS (choline concentration relative to water [Cho/W]), DCE-MRI (volume transfer constant [K{sup trans}]; volume fraction of the extravascular extracellular space [v{sub e}]; and redistribution rate constant [k{sub ep}]), and [{sup 18}F]FDG PET (standard uptake value [SUV] and total lesion glycolysis [TLG]) were calculated using nonparametric Spearman rank correlation. To predict short-term responses, logistic regression analysis was performed. Results: A significant positive correlation was found between Cho/W and TLG ({rho} = 0.599; p = 0.031). Cho/W correlated negatively with heterogeneity measures of standard deviation std(v{sub e}) ({rho} = -0.691; p = 0.004) and std(k{sub ep}) ({rho} = -0.704; p = 0.003). Maximum SUV (SUVmax) values correlated strongly with MRI tumor volume ({rho} = 0.643; p = 0.007). Logistic regression indicated that std(K{sup trans}) and SUVmean were significant predictors of short-term response (p < 0.07). Conclusion: Pretreatment multimodality imaging using {sup 1}H-MRS, DCE-MRI, and [{sup 18}F]FDG PET is feasible in HNSCC patients with nodal metastases. Additionally, combined DCE-MRI and [{sup 18}F]FDG PET parameters were predictive of short-term response to treatment.

Jansen, Jacobus F.A. [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Department of Radiology, Maastricht University Medical Center, Maastricht (Netherlands); Schoeder, Heiko [Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Lee, Nancy Y. [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Stambuk, Hilda E. [Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Wang Ya [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Fury, Matthew G. [Department of Medical Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Patel, Senehal G. [Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Pfister, David G. [Department of Medical Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Shah, Jatin P. [Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Koutcher, Jason A. [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Department of Medical Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Shukla-Dave, Amita, E-mail: davea@mskcc.org [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)

2012-01-01T23:59:59.000Z

446

Widespread Head-to-Head Hydrocarbon Biosynthesis in Bacteria and Role of OleA  

Science Journals Connector (OSTI)

...isolated from the Amazon River Delta off the coast of Brazil (69), contains recognizable ole genes. It produced...supported by grant LG-B13 from the Initiative for Renewable Energy and the Environment (to L.P.W.) and a Watson...

David J. Sukovich; Jennifer L. Seffernick; Jack E. Richman; Jeffrey A. Gralnick; Lawrence P. Wackett

2010-04-23T23:59:59.000Z

447

Electronic Supplement to Chapter 4 Photos of Individual Heads File (.JPG) Head Date* Time* Photographer Notes  

E-Print Network [OSTI]

_3063 LDL-5 2007/07/12 11:41:45 AM LDL-5_3065 LDL-5 2007/07/12 11:42:29 AM LNG-1_1739 LNG-1 2005/06/01 15:15:56 DN LNG-1_1740 LNG-1 2005/06/01 15:16:09 DN LNG-1_1741 LNG-1 2005/06/01 15:16:20 DN LNG-1_0301 LNG-1 2006/06/09 12:13:56 AM LNG-1_0304 LNG-1 2006/06/09 12:14:35 AM LNG-1_0309 LNG-1 2006/06/09 12:16:25 AM

Desbrun, Mathieu

448

Dialkoxybithiazole: A New Building Block for Head-to-Head Polymer Semiconductors  

Science Journals Connector (OSTI)

We thank the ONR for financial support through the Multi-University Research Initiative (MURI Award N00014-11-1-0690) and AFOSR (FA9550-08-1-0331) for support of this research, and the NSF-MRSEC program through the Northwestern University Materials Research Science and Engineering Center for characterization facilities (DMR-1121262). ... An efficient route for the synthesis of 1-iodo-5-octyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione as a key intermediate to build new electron-deficient monomers and related conjugated polymers is reported. ... The authors report a new p-type semiconducting polymer family based on the thieno[3,4-c]pyrrole-4,6-dione (TPD) building block, which exhibits good processability as well as good mobility and lifetime stability in thin-film transistors (TFTs). ...

Xugang Guo; Jordan Quinn; Zhihua Chen; Hakan Usta; Yan Zheng; Yu Xia; Jonathan W. Hennek; Roco Ponce Ortiz; Tobin J. Marks; Antonio Facchetti

2013-01-17T23:59:59.000Z

449

The University of New Mexico An NSF Integrative Graduate  

E-Print Network [OSTI]

with the Office of Population Health Genomics in Western Australia After finishing his defense, Antoine Ho to genomics, rare diseases, and public health. #12;

New Mexico, University of

450

Forrestal Building, 1000 Independence Avenue, S.W.,  

U.S. Energy Information Administration (EIA) Indexed Site

Miller, EIA. MR. FREEDMAN: Stan Freedman, EIA. MS. JENNINGS: Aletha Jennings, EIA. MR. SMITH: Antoine Smith, EIA. MS. CAVANAUGH: Kathleen Cavanaugh, EIA. MR. SEDRANSK: Joe...

451

Radiation-Free Weekend Rescued! Continuous Accelerated Irradiation of 7-Days per Week Is Equal to Accelerated Fractionation With Concomitant Boost of 7 Fractions in 5-Days per Week: Report on Phase 3 Clinical Trial in Head-and-Neck Cancer Patients  

SciTech Connect (OSTI)

Purpose: To report long-term results of randomized trial comparing 2 accelerated fractionations of definitive radiation therapy assessing the need to irradiate during weekend in patients with head and neck squamous cell carcinoma. Methods and Materials: A total of 345 patients with SCC of the oral cavity, larynx, and oro- or hypo-pharynx, stage T2-4N0-1M0, were randomized to receive continuous accelerated irradiation (CAIR: once per day, 7 days per week) or concomitant accelerated boost (CB: once per day, 3 days per week, and twice per day, 2 days per week). Total dose ranged from 66.6-72 Gy, dose per fraction was 1.8 Gy, number of fractions ranged from 37-40 fractions, and overall treatment time ranged from 37-40 days. Results: No differences for all trial end-points were noted. At 5 and 10 years, the actuarial rates of local-regional control were 63% and 60% for CAIR vs 65% and 60% for CB, and the corresponding overall survival were 40% and 25% vs 44% and 25%, respectively. Confluent mucositis was the main acute toxicity, with an incidence of 89% in CAIR and 86% in CB patients. The 5-year rate of grade 3-4 late radiation morbidity was 6% for both regimens. Conclusions: Results of this trial indicate that the effects of accelerated fractionation can be achieve by delivering twice-per-day irradiation on weekday(s). This trial has also confirmed that an accelerated, 6-weeks schedule is a reasonable option for patients with intermediate-stage head-and-neck squamous cell carcinoma because of the associated high cure rate and minimal severe late toxicity.

Skladowski, Krzysztof, E-mail: skladowski@io.gliwice.pl [Maria Sklodowska-Curie Memorial Cancer Center and the Institute of Oncology, Branch in Gliwice (Poland)] [Maria Sklodowska-Curie Memorial Cancer Center and the Institute of Oncology, Branch in Gliwice (Poland); Hutnik, Marcin; Wygoda, Andrzej; Golen, Maria; Pilecki, Boleslaw; Przeorek, Wieslawa; Rutkowski, Tomasz; Lukaszczyk-Widel, Beata; Heyda, Alicja; Suwinski, Rafal; Tarnawski, Rafal; Maciejewski, Boguslaw [Maria Sklodowska-Curie Memorial Cancer Center and the Institute of Oncology, Branch in Gliwice (Poland)] [Maria Sklodowska-Curie Memorial Cancer Center and the Institute of Oncology, Branch in Gliwice (Poland)

2013-03-01T23:59:59.000Z

452

Fermilab | Tune IT Up | Message from the Computing Division Head  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Computing Division Computing Division Victoria A White Victoria A White Many people at Fermilab are diligent about managing their desktops or laptops. They keep them up to date with patches and incorporate them into one of the laboratory's inventory and patching systems (as Windows, Mac or Linux users). However, we are only as strong against penetration by malicious adversaries as our weakest link. Last week auditors from DOE who were checking out our computer security controls and our compliance with our own computer security policies found some of those weak links. They were able to gain access to a number of systems they could not have entered had we been fully conforming to our published security "baselines," fully implementing password complexity guidelines and more carefully monitoring alerts, such as antivirus-scan

453

MEMORANDUM FOR THE HEADS OF DEPARTMENTS AND AGENCIES  

Broader source: Energy.gov (indexed) [DOE]

9, 2010 Version 2.2 9, 2010 Version 2.2 DOE Acquisition and Financial Assistance Implementation Guide for the American Recovery and Reinvestment Act of 2009 Table of Contents Preamble Chapter 1: General Information Chapter 2: Reporting Chapter 3: Grants Chapter 4: Contracts Chapter 5: M&O Contracts Chapter 6: Purchase Cards Attachment 1-OMB Updated Implementing Guidance for the American Recovery and Reinvestment Act of 2009 Attachment 2-Funding Opportunity Announcement Template Attachment 3-Special Terms and Conditions-Financial Assistance Attachment 4-Special Terms and Conditions-Acquisition Attachment 5-Guidance for Modifications Attachment 6-EM Model Contract Modification Attachment 7-SC Model M&O Contract Modification

454

Supplement 15, Parasite-Subject Catalogue, Subject Headings, Treatment  

E-Print Network [OSTI]

.S. Government Printing Office, Washington, D.C., 20402 - Price 35 cents PREFACE A revision of the Author Catalogue of the Index-Catalogue of Medical and Veterinary Zoology, consisting of Parts 1-18, was published during the period 1932-1952. Beginning... in 1953, a series of supplements designed to pub- lish the backlog was initiated. This was completed with Supplement 6, pub- lished in 1956 ; since then supplements covering authors A-Z have been issued on an annual basis. Beginning with the present...

Humphrey, Judith M.; Segal, Dorothy B.; Beard, Mary I.; Edwards, Shirley J.; Kirby, Margie D.

1966-01-01T23:59:59.000Z

455

'Lucy,' crucial early human ancestor, finally gets a head  

Science Journals Connector (OSTI)

...other fossils from Hadar, as well as others from Laetoli in Tanzania (found by Mary Leakey's team). To Johanson and Tim White...Chapman think the pair formed together along with the rest of the solar system, 4.5 bil-lion years ago. For one thing, random...

J Shreeve

1994-04-01T23:59:59.000Z

456

BBC WORLD SERVICE TRUST Terms of Reference: Head of Research  

E-Print Network [OSTI]

Group in London on research team integration, study design, analysis and reporting, and will secure to guide project strategies; 2. Conducting qualitative and quantitative research studies to capture of the India office. This includes the effective design and implementation of formative, pre-testing, rapid

457

2010 RAL Space Head, Space Engineering &Technology Division  

E-Print Network [OSTI]

of the iconic figures of the Space Age:­ Dr Wernher von Braun to Saturn V and the Apollo moon-landing programme of the ion releases from ~200km dHybrid simulation box · The artificial comet release formed a dia particles ­ this technique successfully simulates the AMPTE artificial comet release in a totally self

458

Using doppler radar images to estimate aircraft navigational heading error  

DOE Patents [OSTI]

A yaw angle error of a motion measurement system carried on an aircraft for navigation is estimated from Doppler radar images captured using the aircraft. At least two radar pulses aimed at respectively different physical locations in a targeted area are transmitted from a radar antenna carried on the aircraft. At least two Doppler radar images that respectively correspond to the at least two transmitted radar pulses are produced. These images are used to produce an estimate of the yaw angle error.

Doerry, Armin W. (Albuquerque, NM); Jordan, Jay D. (Albuquerque, NM); Kim, Theodore J. (Albuquerque, NM)

2012-07-03T23:59:59.000Z

459

Head/disk interface tribology in the nanometer regime  

E-Print Network [OSTI]

Type Additives in Perfluoropolyether Lubricant for Hard Diskoff Behavior of Perfluoropolyether Lubricant on MagneticFlow of Thin Air Perfluoropolyether Polymer Films, Journal

Xu, Jianfeng

2008-01-01T23:59:59.000Z

460

Cooling Boiling in Head Region - PACCAR Integrated Underhood...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

D.C. vss004routbort2010o.pdf More Documents & Publications Integrated External Aerodynamic and Underhood Thermal Analysis for Heavy Vehicles CRADA with PACCAR Experimental...

Note: This page contains sample records for the topic "antoine halff head" from the National Library of EnergyBeta (NLEBeta).
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461

Ron Hugo*, Ph.D., PEng. Associate Professor and Head,  

E-Print Network [OSTI]

. Engineering education in North America has also had a long history of change from within. The most significant Engineering, Schulich School of Engineering By its very nature, the engineering education process is a dynamic for engineering application, and the shifting needs of industry as both local and global economies change

Calgary, University of

462

Roadmap for development of an advanced head-end reactor  

SciTech Connect (OSTI)

A novel dry treatment process for used nuclear fuel (UNF) using nitrogen dioxide is being developed to remove volatile and semi-volatile fission products and convert the monolithic fuel material to a fine powder suitable as a feed to many different separations processes. The process may be considered an advanced form of voloxidation, which was envisioned to remove tritium from the fuel prior to introduction of the fuel into the aqueous separations systems, where subsequent separation of tritium from the water would be difficult and expensive. The product from NO{sub 2} reaction can be selectively chosen to be U{sub 3}O{sub 8}, UO{sub 3}, or a nitrate by adjusting the processing conditions; all products are generated at temperatures lower than those used in standard voloxidation. All the fundamental tenants of the process have been successfully demonstrated as a proof of principle, and many aspects have been corroborated multiple times at laboratory scale. The goal of this roadmap is to define the activities required to develop the process to a technology-readiness level sufficient to an engineering-scale implementation. (authors)

Del Cul, G.D.; Johnson, J.A.; Spencer, B.B.; Collins, E.D. [Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6243 (United States)

2013-07-01T23:59:59.000Z

463

Barbara Nolan, European Commission, Head of Unit Higher Education  

E-Print Network [OSTI]

in lifelong learning #12;The Bologna Process - content · Shared Agenda between 46 countries · Bologna reforms Dimension #12;EU Modernisation Agenda · Governance reform ­ autonomy and accountability · Funding reform ­ diversified funding mechanisms · Curricula reform ­ the Bologna Process #12;EU programmes and initiatives

Viglas, Anastasios

464

Katie Antypas Named New Head of NERSC User Services Department  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

NERSC Services Department September 3, 2013 katie2 Katie Antypas Katie Antypas, who has led NERSC's User Services Group since October 2010, has been named as the new Services...

465

New Director Heads Actuarial Science Program - Department of ...  

E-Print Network [OSTI]

Above, Actuarial Science Advisory Council members Chris Ruckman. (B.S. mathematics,1987) ..... near and dear to all recent college graduates: Higher taxes and student loan payments. Will we .... Virginia Mashin Scholarship ($2,500

Sally

2002-01-03T23:59:59.000Z

466

First Person -- George Neil Named Head of FEL Program (Inside...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

vacuum on fire trying to make a jet engine. Almost everything I did as a kid scared my parents. "My curiosity came from my mother. She was always fixing things. When the washing...

467

Cylinder Head Gasket with Integrated Combustion Pressure Sensors  

Broader source: Energy.gov [DOE]

Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010.

468

T U R ECATALOGUE 2013 Head of School Introduction  

E-Print Network [OSTI]

) Stage 2 Architecture BA (Hons) Stage 1 Architecture PhD Research MSc Architecture and Sustainable MArch Unit 1 Unit 2 Unit 3 Unit 4 BA (Hons) Stage 3 Architecture BA (Hons) Stage 3 Interiors BA (Hons of Architecture Catalogue 2013 `Kent School of Architecture has been ranked 6th in the 2014 Guardian University

Banaji,. Murad

469

Department of Energy Contractor Diana Lewis Heading to National...  

Broader source: Energy.gov (indexed) [DOE]

to receive an award and compete for the national title, which will be awarded on June 21. Action Facilities Management is a Small Business Administration certified...

470

Running head: COI1-dependent responses to potassium  

E-Print Network [OSTI]

azotée des plantes, RD10, 78026 Versailles Cedex, France §§ Present address: Groningen Bioinformatics Centre, University of Groningen, Kerklaan 30, 9751 NN Haren, The Netherlands * To whom correspondence

Breitling, Rainer

471

Nanotechnology in Head and Neck Cancer: The Race Is On  

E-Print Network [OSTI]

in biology and medicine. Nanotechnology has generatedNanotechnology is expected to provide a range of devices for diagnosis and treatment in medicine.

El-Sayed, Ivan H.

2010-01-01T23:59:59.000Z

472

A realistic, virtual head for humancomputer interaction  

Science Journals Connector (OSTI)

......the 3D data by using a separate imaging device and a texture-to-3D calibration tool...understood what the avatar said I liked listening to the avatar a was replaced with for...construct (s voice is nice and I liked listening to the avatar) are indeed related to......

Samuel Marcos; Jaime Gmez-Garca-Bermejo; Eduardo Zalama

2010-05-01T23:59:59.000Z

473

Adaptive constructive processes 1 Running head: Adaptive constructive processes  

E-Print Network [OSTI]

to a current environmental demand when automatic, learned responses are not elicited. Bartlett argued further of Psychology Harvard University Cambridge, Massachusetts 02138 phone: (617) 495-3856 fax: (617) 496-3122 e to be operating in any well-adapted organic response (1932, p. 201)". He further emphasized the importance of "the

Schacter, Daniel

474

Cylinder Head Gasket with Integrated Combustion Pressure Sensors...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. p-17wlodarczyk.pdf More Documents & Publications Glow Plug...

475

Where the offshore search for oil and gas is headed  

SciTech Connect (OSTI)

This overview of the world's potential offshore oil and gas frontiers points out that although solutions to technical and political problems have opened up some promising areas for exploration, many key frontier basins have yet to be explored by modern technology. Long-standing disputes between bordering countries over offshore rights have deterred exploration activities in the Malvinas basin off Argentina and in the Gulf of Venezuela. Political problems have also slowed activity in the US Atlantic offshore, where Mesozoic reef trends may be related to Mexico's large oil fields. In Canada's Labrador Sea and Grand Banks, the problems are largely operational because of the inclement weather and threatening icebergs. The