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Sample records for duncan weinberg genzer

  1. Duncan Taylor duncan.taylor@sa.gov.au

    E-Print Network [OSTI]

    1 Duncan Taylor duncan.taylor@sa.gov.au Continuous systems and their implementation Before contact proportion of these were mixtures ·There were many instances of incomplete profiles Added to this: ·DNA that determined what proportion of the population would not be excluded from an observed mixed profile ·Likelihood

  2. 'Recommended by Duncan Hines': Automobility, Authority, and American Gastronomy

    E-Print Network [OSTI]

    Talbott, Damon Lee

    2008-06-09

    How did Duncan Hines become an authority on roadside dining? What role did he have in the consumption of food and the use of automobiles? What were the messages he pronounced to his audiences? In "'Recommended by Duncan ...

  3. EDAK 560 Spring 2014 (Duncan) EDAD 560 Educational Leadership Applications

    E-Print Network [OSTI]

    Diestel, Geoff

    /allocation of resources to support the organization's plan of improvement? How does the educational administrator plan1 EDAK 560 Spring 2014 (Duncan) Syllabus EDAD 560 Educational Leadership Applications SPRING 2014 SEMESTER Instructor: W. Todd Duncan, Ed.D. Assistant Professor, Educational Leadership, Department

  4. A Made Place, An Eternal Place: Robert Duncan's Poetics of Space

    E-Print Network [OSTI]

    Clothier, Matthew Allen

    2010-04-27

    this examination argue for a reading of Duncan's work as creating space and as a space created, exemplified by Simon Rodia's Watts Towers, memorialized in Duncan's poem, "Nel Mezzo del Cammin di Nostra Vita." Finally, reading Duncan in terms of temenos allows for a...

  5. Hewlett and Duncan - Atomic Shield | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuelsof Energy ServicesContracting OversightEMS Policyand CoolingEnergyDuncan -

  6. Secretaries Chu and Duncan to Host Press Conference Call to Announce...

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

    while inspiring students to pursue studies in science, technology, engineering and mathematics. WHO: Secretary of Energy Steven Chu Secretary of Education Arne Duncan Dr. Francis...

  7. Duncan Valley Elec Coop, Inc (New Mexico) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (UtilityInstrumentsAreafor Geothermal ResourcesEnergyDumont, NewDuncan Valley

  8. Duncan Valley Elec Coop, Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA Jump to:of the National ClimateDongyingOpenDuke EnergyIncDuncan

  9. City of Duncan, Oklahoma (Utility Company) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar Energy LLCLtd JumpGeorgiaBurley,Columbus Place:Cuero,Dike,Dowagiac,Duncan,

  10. Author: Duncan Woodhouse, Assistant Registrar for Information Security, Risk Management and Business Continuity Date Version Author Comments

    E-Print Network [OSTI]

    Davies, Christopher

    Author: Duncan Woodhouse, Assistant Registrar for Information Security, Risk Management Information Security Policy 2004 09/2008 D01 Duncan Woodhouse Adaption and consolidation of best practices Registrar for Information Security, Risk Management and Business Continuity 2 University of Warwick

  11. Plasticity of metal nanowires Christopher R. Weinberger*a

    E-Print Network [OSTI]

    Cai, Wei

    Plasticity of metal nanowires Christopher R. Weinberger*a and Wei Cai*b Received 2nd August 2011, Accepted 24th November 2011 DOI: 10.1039/c2jm13682a The mechanisms of plasticity in metal nanowires with diameters below 100 nm are reviewed. At these length scales, plasticity in face-centered-cubic metals

  12. The University of Aberdeen is a charity registered in Scotland, No SC013683 The Sir Duncan Rice Library

    E-Print Network [OSTI]

    Levi, Ran

    alternative types of study and work spaces are available in The Sir Duncan Rice Library: Room/Space Floor Rice Library - Silent Study Rooms (SE corner) Laurence Bebbington, July 2013 QG GEN021 [https://www.abdn.ac.uk/library-east corner of The Sir Duncan Rice Library (rooms 312, 412, and 512 are intended for silent study - but quiet

  13. The University of Aberdeen is a charity registered in Scotland, No SC013683 The Sir Duncan Rice Library

    E-Print Network [OSTI]

    Levi, Ran

    alternative types of study and work spaces are available in The Sir Duncan Rice Library: Room/Space Floor Rice Library - Silent Study Rooms (SW corner) Laurence Bebbington, July 2013 QG GEN020 [https://www.abdn.ac.uk/library Duncan Rice Library (Rooms 112, 324, 424, 524 and 624) are intended for silent study only. Please note

  14. A taxonomy of virtual worlds usage in education Ishbel Duncan, Alan Miller and Shangyi Jiang

    E-Print Network [OSTI]

    St Andrews, University of

    1 A taxonomy of virtual worlds usage in education Ishbel Duncan, Alan Miller and Shangyi Jiang from around the world. A taxonomy is then derived from these articles, delineating current theoretical and practical work on Virtual World usage, specifically in the field of education. The taxonomy identifies rich

  15. To: NW Hydro Association From: Dick Wanderscheid, Angus Duncan and Todd Reeve

    E-Print Network [OSTI]

    Memo To: NW Hydro Association From: Dick Wanderscheid, Angus Duncan and Todd Reeve Re: The Bonneville Environmental Foundation's comments on the draft hydro potential study BEF staff completed to address the larger, conceptual picture of the hydro potential in the region. In particular, we attempted

  16. General relativistic tidal work for Papapetrou, Weinberg and Goldberg pseudotensors

    E-Print Network [OSTI]

    Lau Loi So

    2015-05-18

    In 1998 Thorne claimed that all pseudotensors give the same tidal work as the Newtonian theory. In 1999, Purdue used the Landau-Lifshitz pseudotensor to calculate the tidal heating and the result matched with the Newtonian gravity. Soon after in 2001, Favata employed the same method to examine the Einstein, Bergmann-Thomson and M{\\o}ller pseudotensors, all of them give the same result as Purdue did. Inspired by the work of Purdue and Favata, for the completeness, here we manipulate the tidal work for Papapetrou, Weinberg and Goldberg pseudotensors. We obtained the same tidal work as Purdue achieved. In addition, we emphasize that a suitable gravitational energy-momentum pseudotensor requires fulfill the inside matter condition and all of the classical pseudotensors pass this test except M$\\o$ller. Moreover, we constructed a general pseudotesnor which is modified by 13 linear artificial higher order terms combination with Einstein pseudotensor. We find that the result agrees with Thorne's prediction, i.e., relativistic tidal work is pseudotensor independent.

  17. General relativistic tidal work for Papapetrou, Weinberg and Goldberg pseudotensors

    E-Print Network [OSTI]

    So, Lau Loi

    2015-01-01

    In 1998 Thorne claimed that all pseudotensors give the same tidal work as the Newtonian theory. In 1999, Purdue used the Landau-Lifshitz pseudotensor to calculate the tidal heating and the result matched with the Newtonian gravity. Soon after in 2001, Favata employed the same method to examine the Einstein, Bergmann-Thomson and M{\\o}ller pseudotensors, all of them give the same result as Purdue did. Inspired by the work of Purdue and Favata, for the completeness, here we manipulate the tidal work for Papapetrou, Weinberg and Goldberg pseudotensors. We obtained the same tidal work as Purdue achieved. In addition, we emphasize that a suitable gravitational energy-momentum pseudotensor requires fulfill the inside matter condition and all of the classical pseudotensors pass this test except M$\\o$ller. Moreover, we constructed a general pseudotesnor which is modified by 13 linear artificial higher order terms combination with Einstein pseudotensor. We find that the result agrees with Thorne's prediction, i.e., rel...

  18. Hewlett and Duncan, Nuclear Navy, 1946-1962 | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuelsof Energy ServicesContracting OversightEMS Policyand CoolingEnergyDuncan

  19. Association for Biology Laboratory Education (ABLE) ~ http://www.zoo.utoronto.ca/able Demystifying Hardy-Weinberg: Using Cellulose Acetate

    E-Print Network [OSTI]

    Demystifying Hardy-Weinberg: Using Cellulose Acetate Electrophoresis of the Lap Locus to Study Population From: Peroni, P. A. and D. E. McCauley. 1999. Demystifying Hardy-Weinberg: Using cellulose acetate proceedings volumes. #12;102 Cellulose Acetate Electrophoresis Contents Introduction

  20. K. STEGMANN, A. WEINBERGER, F. FISCHER, & H. MANDL SCRIPTING ARGUMENTATIVE KNOWLEDGE

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    320 K. STEGMANN, A. WEINBERGER, F. FISCHER, & H. MANDL SCRIPTING ARGUMENTATIVE KNOWLEDGE of argumentation during process as well as with respect to the individual outcome. Both types of scripts were varied independently in a 2X2-factorial design. 120 students of Educational Science participated

  1. On thermoelectric power conversion from heat re-circulating combustion systems F. J. Weinberg

    E-Print Network [OSTI]

    On thermoelectric power conversion from heat re-circulating combustion systems F. J. Weinberg Fax: 4420 7594 5604 Word count: 3750 Diags. equivalent: 1600 5350 #12;On thermoelectric power the absolute maximum efficiency of energy conversion by thermoelectric devices that operate as part of the heat

  2. Reintroduction of Lower Columbia River Chum Salmon into Duncan Creek, 2007 Annual Report.

    SciTech Connect (OSTI)

    Hillson, Todd D.

    2009-06-12

    The National Marine Fisheries Service (NMFS) listed Lower Columbia River (LCR) chum salmon as threatened under the Endangered Species Act (ESA) in March, 1999 (64 FR 14508, March 25, 1999). The listing was in response to the reduction in abundance from historical levels of more than one-half million returning adults to fewer than 10,000 present-day spawners. Harvest, habitat degradation, changes in flow regimes, riverbed movement and heavy siltation have been largely responsible for this decline. The timing of seasonal changes in river flow and water temperatures is perhaps the most critical factor in structuring the freshwater life history of this species. This is especially true of the population located directly below Bonneville Dam, where hydropower operations can block access to spawning sites, dewater redds, strand fry, cause scour or fill of redds and increase sedimentation of spawning gravels. Prior to 1997, only two chum salmon populations were recognized as genetically distinct in the Columbia River, although spawning had been documented in many Lower Columbia River tributaries. The first population was in the Grays River (RKm 34), a tributary of the Columbia River, and the second was a group of spawners utilizing the mainstem Columbia River just below Bonneville Dam (RKm 235) adjacent to Ives Island and in Hardy and Hamilton creeks. Using additional DNA samples, Small et al. (2006) grouped chum salmon spawning in the mainstem Columbia River and the Washington State tributaries into three groups: the Coastal, the Cascade and the Gorge. The Coastal group comprises those spawning in the Grays River, Skamokawa Creek and the broodstock used at the Sea Resources facility on the Chinook River. The Cascade group comprises those spawning in the Cowlitz (both summer and fall stocks), Kalama, Lewis, and East Fork Lewis rivers, with most supporting unique populations. The Gorge group comprises those spawning in the mainstem Columbia River from the I-205 Bridge up to Bonneville Dam and those spawning in Hamilton and Hardy creeks. Response to the federal ESA listing has been primarily through direct-recovery actions: reducing harvest, hatchery supplementation using local broodstock for populations at catastrophic risk, habitat restoration (including construction of spawning channels) and flow agreements to protect spawning and rearing areas. Both state and federal agencies have built controlled spawning areas. In 1998, the Washington Department of Fish and Wildlife (WDFW) began a chum salmon supplementation program using native stock on the Grays River. This program was expanded during 1999 - 2001 to include reintroduction into the Chinook River using eggs from the Grays River Supplementation Program. These eggs are incubated at the Grays River Hatchery, reared to release size at the Sea Resources Hatchery on the Chinook River, and the fry are released at the mouth of the Chinook River. Native steelhead, chum, and coho salmon are present in Duncan Creek, and are recognized as subpopulations of the Lower Gorge population, and are focal species in the Lower Columbia Fish Recovery Board (LCFRB) plan. Steelhead, chum and coho salmon that spawn in Duncan Creek are listed as Threatened under the ESA. Duncan Creek is classified by the LCFRB plan as a watershed for intensive monitoring (LCFRB 2004). This project was identified in the 2004 Federal Columbia River Power System (FCRPS) revised Biological Opinion (revised BiOp) to increase survival of chum salmon, 'BPA will continue to fund the program to re-introduce Columbia River chum salmon into Duncan Creek as long as NOAA Fisheries determines it to be an essential and effective contribution to reducing the risk of extinction for this ESU'. (USACE et al. 2004, page 85-86). The Governors Forum on Monitoring and Salmon Recovery and Watershed Health recommends one major population from each ESU have adult and juvenile monitoring. Duncan Creek chum salmon are identified in this plan to be intensively monitored. Planners recommended that a combination of natural and hatchery production

  3. Strategic Adaptation in a Dual-Task Setting Christian P. Janssen, Duncan P. Brumby, John Dowell, and Nick Chater

    E-Print Network [OSTI]

    Brumby, Duncan

    Strategic Adaptation in a Dual-Task Setting Christian P. Janssen, Duncan P. Brumby, John Dowell, and Nick Chater c.janssen@ucl.ac.uk, d.brumby@cs.ucl.ac.uk, j.dowell@cs.ucl.ac.uk, n.chater@ucl.ac.uk UCL

  4. A post-glacial sea level hinge on the central Pacific coast of Canada Duncan McLaren a, b, *

    E-Print Network [OSTI]

    Keywords: Isostatic Eustatic Sea level change Northeast Pacific Rim Central Pacific coast of CanadaA post-glacial sea level hinge on the central Pacific coast of Canada Duncan McLaren a, b dynamics during the last 15,000 calendar years are highly variable along the Pacific coast of Canada

  5. The University of Aberdeen is a charity registered in Scotland, No SC013683 The Sir Duncan Rice Library

    E-Print Network [OSTI]

    Levi, Ran

    Rice Library - Flexible Learning Area Laurence Bebbington, June 2013 QG GEN022 [https://www.abdn.ac.uk/library 732) is on Floor 7 of The Sir Duncan Rice Library. It is located on the right after you exit the lifts. This area has: a selection of differing types of tables and chairs two moveable plasma display screens

  6. MAP, MAC, and Vortex-rings Configurations in the Weinberg-Salam Model

    E-Print Network [OSTI]

    Rosy Teh; Ban-Loong Ng; Khai-Ming Wong

    2015-03-20

    We report on the presence of new axially symmetric monopoles, antimonopoles and vortex-rings solutions of the SU(2)$\\times$U(1) Weinberg-Salam model of electromagnetic and weak interactions. When the $\\phi$-winding number $n=1$, and 2, the configurations are monopole-antimonopole pair (MAP) and monopole-antimonopole chain (MAC) with poles of alternating sign magnetic charge arranged along the $z$-axis. Vortex-rings start to appear from the MAP and MAC configurations when the winding number $n=3$. The MAP configurations possess zero net magnetic charge whereas the MAC configurations possess net magnetic charge of $4\\pi n/e$. In the MAP configurations, the monopole-antimonopole pair is bounded by the ${\\cal Z}^0$ field flux string and there is an electromagnetic current loop encircling it. The monopole and antimonopole possess magnetic charges $\\pm\\frac{4\\pi n}{e}\\sin^2\\theta_W$ respectively. In the MAC configurations there is no string connecting the monopole and the adjacent antimonopole and they possess magnetic charges $\\pm\\frac{4\\pi n}{e}$ respectively. The MAC configurations possess infinite total energy and zero magnetic dipole moment whereas the MAP configurations which are actually sphalerons possess finite total energy and magnetic dipole moment. The configurations were investigated for varying values of Higgs self-coupling constant $0\\leq \\lambda\\leq 40$ at Weinberg angle $\\theta_W=\\frac{\\pi}{4}$.

  7. Using the Tremaine-Weinberg method to measure pattern speeds from H?velocity maps

    E-Print Network [OSTI]

    John Beckman; Kambiz Fathi; Nuria Piñol; Olivier Hernandez; Claude Carignan; Isabel Pérez

    2008-10-29

    The Tremaine-Weinberg method is a well-known model independent technique for measuring density wave pattern speeds in spiral galaxies. Here we show how it can be applied to the data cubes (maps of surface brightness and velocity) obtained in H-alpha emission using a Fabry-Perot spectrometer. One of the main difficulties, the discontinuity of the H-alpha emission, is resolved using the neighbouring stellar continuum delivered by the data cube. We argue from symmetry that the motions not associated with the density wave should cancel. We show that our pattern speeds are reasonable by computing corotation radii, and comparing them to measured bar lengths. Simulations including star forming gas also add credibility to our results. Nevertheless it will be necessary to compare them with results using the spectra of the stellar components to quantify any systematic deviations from valid pattern speed values.

  8. Using the Tremaine-Weinberg method to measure pattern speeds from H\\alpha velocity maps

    E-Print Network [OSTI]

    Beckman, John; Piñol, Nuria; Hernandez, Olivier; Carignan, Claude; Pérez, Isabel

    2008-01-01

    The Tremaine-Weinberg method is a well-known model independent technique for measuring density wave pattern speeds in spiral galaxies. Here we show how it can be applied to the data cubes (maps of surface brightness and velocity) obtained in H-alpha emission using a Fabry-Perot spectrometer. One of the main difficulties, the discontinuity of the H-alpha emission, is resolved using the neighbouring stellar continuum delivered by the data cube. We argue from symmetry that the motions not associated with the density wave should cancel. We show that our pattern speeds are reasonable by computing corotation radii, and comparing them to measured bar lengths. Simulations including star forming gas also add credibility to our results. Nevertheless it will be necessary to compare them with results using the spectra of the stellar components to quantify any systematic deviations from valid pattern speed values.

  9. Landau-Lifshitz and Weinberg Energy-Momentum Complexes for 2+1 Dimensional Black Hole Solutions

    E-Print Network [OSTI]

    I. Radinschi; I-Ching Yang

    2007-02-19

    The aim of this paper is to evaluate the energy distribution of some 2+1 black hole solutions applying the Landau-Lifshitz and Weinberg definitions. The metrics under consideration describe the charged black hole, the solution coupling to a static scalar field and the static and circularly symmetric exact solution of the Einstein-massless scalar equation. Further, we compare the expressions for energy with those obtained using the Einstein and Moller prescriptions and give a discussion of the results.

  10. Genotype-based Case-Control Analysis, Violation of Hardy-Weinberg Equilibrium, and Phase Diagrams

    E-Print Network [OSTI]

    Young Ju Suh; Wentian Li

    2008-03-12

    We study in detail a particular statistical method in genetic case-control analysis, labeled "genotype-based association", in which the two test results from assuming dominant and recessive model are combined in one optimal output. This method differs both from the allele-based association which artificially doubles the sample size, and the direct chi-square test on 3-by-2 contingency table which may overestimate the degree of freedom. We conclude that the comparative advantage (or disadvantage) of the genotype-based test over the allele-based test mainly depends on two parameters, the allele frequency difference delta and the Hardy-Weinberg disequilibrium coefficient difference delta_epsilon. Six different situations, called "phases", characterized by the two X^2 test statistics in allele-based and genotype-based test, are well separated in the phase diagram parameterized by delta and delta_epsilon. For two major groups of phases, a single parameter theta = tan^-1 (delta/delta_epsilon) is able to achieves an almost perfect phase separation. We also applied the analytic result to several types of disease models. It is shown that for dominant and additive models, genotype-based tests are favored over allele-based tests.

  11. The Tremaine-Weinberg method for pattern speeds using H-alpha emission from ionized gas

    E-Print Network [OSTI]

    John E. Beckman; Kambiz Fathi; Núria Piñol; Silvia Toonen; Olivier Hernandez; Claude Carignan

    2008-01-18

    The Fabry-Perot interferometer FaNTOmM was used at the 3.6m Canada France Hawaii Telescope and the 1.6m Mont Megantic Telescope to obtain data cubes in H-alpha of 9 nearby spiral galaxies from which maps in integrated intensity, velocity, and velocity dispersion were derived. We then applied the Tremaine-Weinberg method, in which the pattern speed can be deduced from its velocity field, by finding the integrated value of the mean velocity along a slit parallel to the major axis weighted by the intensity and divided by the weighted mean distance of the velocity points from the tangent point measured along the slit. The measured variables can be used either to make separate calculations of the pattern speed and derive a mean, or in a plot of one against the other for all the points on all slits, from which a best fit value can be derived. Linear fits were found for all the galaxies in the sample. For two galaxies a clearly separate inner pattern speed with a higher value, was also identified and measured.

  12. The Tremaine-Weinberg method for pattern speeds using H-alpha emission from ionized gas

    E-Print Network [OSTI]

    Beckman, John E; Piñol, Núria; Toonen, Silvia; Hernandez, Olivier; Carignan, Claude

    2007-01-01

    The Fabry-Perot interferometer FaNTOmM was used at the 3.6m Canada France Hawaii Telescope and the 1.6m Mont Megantic Telescope to obtain data cubes in H-alpha of 9 nearby spiral galaxies from which maps in integrated intensity, velocity, and velocity dispersion were derived. We then applied the Tremaine-Weinberg method, in which the pattern speed can be deduced from its velocity field, by finding the integrated value of the mean velocity along a slit parallel to the major axis weighted by the intensity and divided by the weighted mean distance of the velocity points from the tangent point measured along the slit. The measured variables can be used either to make separate calculations of the pattern speed and derive a mean, or in a plot of one against the other for all the points on all slits, from which a best fit value can be derived. Linear fits were found for all the galaxies in the sample. For two galaxies a clearly separate inner pattern speed with a higher value, was also identified and measured.

  13. The Web File System: // Filelike Access to the Web Atul Adya, Joseph Banks, Jim Napier, Jordan Slott, and H.B. Weinberg.

    E-Print Network [OSTI]

    Adya, Atul

    . The output of ls and wc is simplified and indented to increase readability. 1 #12; Consider an HTML Web pageThe Web File System: // File­like Access to the Web Atul Adya, Joseph Banks, Jim Napier, Jordan Slott, and H.B. Weinberg. May 20, 1995 1 Introduction The Web File System (WFS) is a file system

  14. Duncan Dining Hall - 14 

    E-Print Network [OSTI]

    Unknown

    2009-01-01

    Heat pumps have been used for nearly one hundred years mostly providing heating and cooling for homes and residential settings. However, industrial heat pumps are also used and may be driven by waste heat streams from the manufacturing facility...

  15. Duncan Dining Hall - 5 

    E-Print Network [OSTI]

    Unknown

    2009-01-01

    Page 4.4 Run 3: Base Run for Duri Oil Using Pure Steam ........................ 33 4.5 Run 4: Pure Steam with NaOH (0.1 wt %) for Duri Oil ............. 37 4.6 Run 5: Pure Steam... production rates for run 1 .............................................................. 25 4.4 Oil recovery versus time for run 1 ............................................................ 26 4.5 Oil recovery versus pore...

  16. The Honorable Arne Duncan

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaicsState of Pennsylvania U.S.The First FiveThe Home Energy

  17. Tsovaltzi, D., Weinberger, A., Scheuer, O., Dragon, T. & McLaren, B.M., (2012). Argument diagrams in Facebook: Facilitating the formation of scientifically sound opinions. In: A. Ra-

    E-Print Network [OSTI]

    McLaren, Bruce Martin

    2012-01-01

    in Facebook: Facilitating the formation of scientifically sound opinions. In: A. Ra- venscroft, S. Lindstaedt in Facebook: Facilitating the Formation of Scientifically Sound Opinions Dimitra Tsovaltzi, Armin Weinberger Dimitra.tsovalzi@mx.uni-saarland.de Students use Facebook to organize their classroom experiences [1

  18. The London-Anderson-Englert-Brout-Higgs-Guralnik-Hagen-Kibble-Weinberg mechanism and Higgs boson reveal the unity and future excitement of physics

    E-Print Network [OSTI]

    Roland E. Allen

    2013-06-18

    The particle recently discovered by the CMS and ATLAS collaborations at CERN is almost certainly a Higgs boson, fulfilling a quest that can be traced back to three seminal high energy papers of 1964, but which is intimately connected to ideas in other areas of physics that go back much further. One might oversimplify the history of the features which (i) give mass to the W and Z particles that mediate the weak nuclear interaction, (ii) effectively break gauge invariance, (iii) eliminate physically unacceptable Nambu-Goldstone bosons, and (iv) give mass to fermions (like the electron) by collectively calling them the London-Anderson-Englert-Brout-Higgs-Guralnik-Hagen-Kibble-Weinberg mechanism. More important are the implications for the future: a Higgs boson appears to point toward supersymmetry, since new physics is required to protect its mass from enormous quantum corrections, while the discovery of neutrino masses seems to point toward grand unification of the nongravitational forces.

  19. The relative efficiency of the Hardy-Weinberg equilibrium-likelihood and the conditional on parental genotype-likelihood methods for candidate-gene association studies

    SciTech Connect (OSTI)

    Knapp, M.; Baur, M.P. [Univ. of Bonn (Germany); Wassmer, G. [GSF-Institute for Epidemiology, Neuherberg (Germany)

    1995-12-01

    Selecting a control group that is perfectly matched for ethnic ancestry with a group of affected individuals is a major problem in studying the association of a candidate gene with a disease. This problem can be avoided by a design that uses parental data in place of nonrelated controls. Schaid and Sommer presented two new methods for the statistical analysis using this approach: (1) a likelihood method (Hardy-Weinberg equilibrium [HWE] method), which rests on the assumption that HWE holds, and (2) a conditional likelihood method (conditional on parental genotype [CPG] method) appropriate when HWE is absent. Schaid and Sommer claimed that the CPG method can be more efficient than the HWE method, even when equilibrium holds. It can be shown, however, that in the equilibrium situation the HWE method is always more efficient than the CPG method. For a dominant disease, the differences are slim. But for a recessive disease, the CPG method requires a much larger sample size to achieve a prescribed power than the HWE method. Additionally, we show how the relative risks for the various candidate-gene genotypes can be estimated without relying on iterative methods. For the CPG method, we present an asymptotic power approximation that is sufficiently precise for planning the sample size of an association study. 12 refs., 2 figs., 2 tabs.

  20. A note on Hardy-Weinberg equilibrium of VNTR data by using the Federal Bureau of Investigation's fixed-bin method

    SciTech Connect (OSTI)

    Devlin, B.; Risch, N. )

    1992-09-01

    To fully utilize the information of VNTR data for forensic inference, the probability of observing the matching suspect and evidentiary profile in a reference population is estimated, usually by assuming independence of alleles within and between loci. This assumption has been challenged on the basis of the observation that there is frequently an excess of single-band phenotypes (SBP) in forensic data bases, which could indicate lack of independence. Nevertheless, another explanation is that the excess SBP are artifacts of laboratory methods. In this report the authors examine the excess of SBP for three VNTR loci studied by the FBI (D17S79 and D2S44, for blacks, and D14S13, for Caucasians). The FBI claims that the excess is due to the effect of null alleles; the null alleles are suspected to be small to be detected. The authors estimate the frequency of null alleles for two loci (D17S79 and D14A13) by comparing, for these loci, the data from the FBI data base and the data from the Lifecodes data base. These comparisons yield information on small fragments because Lifecodes uses the restriction enzyme PstI, which yields larger fragments than does HaeIII, which the FBI uses. For D17S19 in blacks, the authors estimate a null allele frequency of 4.4%, and, for D14S13 in Caucasians, they estimate a frequency of 3.0%. The null-allele frequency for D2S44 in blacks is derived similarly, again being based on analysis of DNA cut with HaeIII and PstI; the estimate of the null-allele frequency for this locus is 1.5%. Using these null-allele frequency estimates and a goodness-of-fit test, the authors show that there is no evidence for deviations from Hardy-Weinberg expectations of genotype probabilities at these loci. 20 refs., 1 fig.

  1. Plasticity of Metal Nanowires Christopher R. Weinberger

    E-Print Network [OSTI]

    Cai, Wei

    of nanowires subject to torsion and bending as well as those composed of body-centered-cubic metals are also memory effects 28 VII. Bending and Torsion 30 A. Bending 31 B. Torsion 31 C. Pseudo-elasticity of 110 NWs field that deserves its own dedicated review paper [10]. Nonetheless, a review paper on nanowire

  2. Steven Weinberg, Weak Interactions, and Electromagnetic Interactions

    Office of Scientific and Technical Information (OSTI)

    of Texas Austin and is founding director of the Theory Group in the College of Natural Sciences. He is well known for his development of a field theory that unifies the...

  3. Steven Weinberg, Weak Interactions, and Electromagnetic Interactions

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnical Report:Speeding access toSmallTechnicalSheldon Glashow and-D

  4. Duncan Highsmith -Biographical Information Duncan Highsmith, 61, was Chairman and President of Highsmith Inc.

    E-Print Network [OSTI]

    Sheridan, Jennifer

    . was a family-owned corporation founded in 1956 by Hugh Highsmith. The company focused on libraries and learning, and as Chairman in 2003 until the sale of the company to the Lab Safety Supply division of W.W.Grainger in July Group and Highsmith Publications. The company earned a reputation as an innovator in organization design

  5. Hewlett and Duncan - Atomic Shield | Department of Energy

    Energy Savers [EERE]

    & Public Tours History Publications Labs and Field Site Histories Researching DOE Records DOE History Timeline Manhattan Project Manhattan Project National Historical Park...

  6. Duncan M. FitzGerald Department of Earth Sciences

    E-Print Network [OSTI]

    Hutyra, Lucy R.

    change" by Hein et al. (2013), Sedimentology 60, 469-502: A transgressive barrier at Pinheira, Southern Brazil around 3 ka?", Sedimentology, doi: 10.1111/sed.12133. Billy, J., Robin, N., Hein, C.J., Certain, R

  7. Secretaries Chu and Duncan, NSTA Announce New Energy Education...

    Office of Environmental Management (EM)

    technology, engineering and mathematics. "Energy efficiency is all about helping families save money by saving energy," said Secretary Chu. "America's Home Energy Education...

  8. ew-KANATIwr-DUNCAN ws-CELINA-SWIFT

    E-Print Network [OSTI]

    Lacy, Bob

    -MUKILTEO-BLUEJAYrt'S-INVINCIBLE-SYLVIE sw-CROSSING-CHARLOTTE sw-CROSSING-ILIAMNAsw-CROSSING-NEENA sw-CROSSING-SUKEE sw

  9. MHK Projects/Duncan Point Project | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource HistoryScenarios Towards 2050 JumpCoos Bay OPT Wave ParkDouglas County Wave

  10. Secretaries Chu and Duncan, NSTA Announce New Energy Education Initiative

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterestedReplacement-2-AA-1 SECTIONEnergy Scientistsin Joint Op-Ed |National

  11. Duncan - Rickover and the Nuclear Navy | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels DataEnergy Webinar:IAbout Us|ofElizabeth

  12. James Serrin Howard Levine and Hans Weinberger, Coordinating Editors

    E-Print Network [OSTI]

    Goubet, Olivier

    . He received his doctorate in 1951, with a profound thesis on the hydrodynamical theory of cavitation. In the next few years he wrote several papers on cavitation, some very influential papers on compressible

  13. Senses of Taste: Duncan Hines and American Gastronomy, 1931-1962

    E-Print Network [OSTI]

    Talbott, Damon Lee

    2013-08-31

    home. Decades before mass transportation and consumption created the transnational, multi-billion dollar industry of fast food, Hines became a critic that aided the developing popular culture of eating out and furthered the discourses of American... by contemporary culinary standards, it nevertheless highlighted the consequences of a reshaping of society. The early to middle twentieth century brought significant changes in the American diet such as industrialization and urbanization, first...

  14. The Structure of the New IT Frontier: Cloud Computing Part I Dexter Duncan1

    E-Print Network [OSTI]

    Buyya, Rajkumar

    is often called the 5th Utility [2]. Utilities such as water, gas, and electricity are fundamental in our during the Global Financial Crisis. IDC estimates the market size for Cloud Computing to be at USD $42 Billion by 2012, with an annual growth rate of 27%. Extending this to 2020, the market size for Cloud

  15. Curriculum Vitae Duncan L. Carlsmith Contact information: Dept. of Physics, 1150 University Ave, Madison, WI 53706

    E-Print Network [OSTI]

    Yavuz, Deniz

    Introduction to Physics I (2010), 2012, Physics 248: A Mod- ern Introduction to Physics II (2011, 2013), Physics 249: A Modern Introduction to Physics #12;III (2011, 2013, 2014), Physics 299: Directed Study), Physics 531: Introduction to Quantum Mechanics (1989, 1993, 1996), Physics 535: Elementary Particle

  16. Charles Duncan Sworn in as Secretary of Energy | National Nuclear Security

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouthReporteeo | National NuclearaCSGF Magazine |Administration

  17. Secretaries Chu and Duncan to Host Press Conference Call to Announce

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterestedReplacement-2-AA-1 SECTIONEnergy Scientistsin Joint Op-Ed |National School

  18. Shock wave induced damage in kidney tissue K. Weinberg a,*, M. Ortiz b

    E-Print Network [OSTI]

    Ortiz, Michael

    . A finite element analysis localizes the dam- age in the human kidney in good agreement to clinical, the compressive front is followed by a ``tension tail'', i.e., a negative pressure up to 10MPa. In this way bubble

  19. Improved Detection of Landmarks on 3D Human Face Data , Seth M. Weinberg3

    E-Print Network [OSTI]

    Washington at Seattle, University of

    in craniofacial research and practice. Traditionally, direct anthropometry using calipers has been the standard assessment [1]. Some of the major downsides to direct anthropometry include the excessive time solutions, computerized anthropometry has largely replaced more traditional direct methods for collecting

  20. Sir --Steven Weinberg's Concepts essay "Four golden lessons" (Nature 426, 389;

    E-Print Network [OSTI]

    Hunt, Julian

    ' are examples of trendy new fields that are attracting large budgets, whereas animal testing is gradually being Misericordiae Hospital, Raymond Terrace, South Brisbane, Queensland 4101, Australia White House cost" (Nature 425, 888; 2003), I was overcome by disgust for the blatant disregard the White House shows towards

  1. Alvin M. Weinberg, 1980 | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe 26thI D- 6 0GrantsThe Life ofASCRLightAllen J. Bard, 2013

  2. Alvin Weinberg, 1960 | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe 26thI D- 6 0GrantsThe Life ofASCRLightAllen J. Bard, 2013Alvin

  3. A reaction class approach for modeling gas phase reaction rates Thanh N. Truong,* Wendell T. Duncan and Max Tirtowidjojo

    E-Print Network [OSTI]

    Truong, Thanh N.

    present a series of new tunneling models based on a reaction class approach. Reaction class consists the growing number of known elementary reaction rate constants, the current kinetic data- base is far from idea of this approach is based on the following realization. Reactions in a kinetic model

  4. Cosmic Solutions in the Einstein-Weinberg-Salam Theory and the Generation of Large Electric and Magnetic Fields

    E-Print Network [OSTI]

    Yutaka Hosotani; Hiroki Emoto; Takahiro Kubota

    2002-09-11

    In the SU(2)_L x U(1)_Y standard electroweak theory coupled with the Einstein gravity, new topological configurations naturally emerge, if the spatial section of the universe is globally a three-sphere (S^3) with a small radius. The SU(2)_L gauge fields wrap the space nontrivially, producing homogeneous but anisotropic space. As the universe expands, large electric and magnetic fields are produced. The electromagnetic field configuration is characterized by the Hopf map.

  5. Design and Modeling of the NU Smart Space Drilling System (SSDS) Yinghui Liu, Brian Weinberg, Constantinos Mavroidis*

    E-Print Network [OSTI]

    Mavroidis, Constantinos

    has recently established a new strategic roadmap for the human exploration of Mars within the next 20 investigation, human colonization of extraterrestrial planets and resource production. Investigation for life organisms on Mars must be extended to beneath the surface of the planet. To date, drilling has only been

  6. Plug-in Hybrid Powertrain Modeling Scott J. Moura, Hosam K. Fathy, Duncan S. Callaway, Jeffrey L. Stein Slide 1 of 15

    E-Print Network [OSTI]

    Krstic, Miroslav

    ) decreases the cost per gallon of gasoline equivalent. Chevrolet Volt Concept Car at 2007 NAIAS Source with "blending"? Problem Statement Develop a control-oriented model of sufficient fidelity and minimal complexity

  7. Photoexcitation Dynamics on the Nanoscale O.V. Prezhdo, W.R. Duncan, C.F. Craig, S.V. Kilina, and B.F. Habenicht

    E-Print Network [OSTI]

    electron injection from alizarin into TiO2 surface occurs via strong coupling to few surface states rather than through the commonly assumed interaction with multiple TiO2 bulk states. The injection does observed in quantum dots, carbon nanotubes, and molecule- semiconductor interfaces. The theoretical

  8. Empirical Evaluation of Theories for Buying and Selling Prices of Binary Gamgles Michael M. Birnbaum, Sherry Yeary, R. Duncan Luce, and Li Zhao

    E-Print Network [OSTI]

    White, Douglas R.

    MBS 0212 Empirical Evaluation of Theories for Buying and Selling Prices of Binary Gamgles Michael M of buyers and sellers. Consistent with previous results, selling prices exceed buying prices of these configural models. Keywords: buying price, choice, configural weighting, contingent valuation, cumulative

  9. UBC Social Ecological Economic Development Studies (SEEDS) Student Report Benjamin Machel, Duncan Keen, Efezino Erome-Utunedi, Haoran Yu, Yiqi Wang

    E-Print Network [OSTI]

    : Dishwasher Detergents APSC 262 April 09, 2015 1270 1791 University of British Columbia Disclaimer: "UBC SEEDS matter of a project/report". #12;An Investigation into Sustainable Cleaning Products: Dishwasher, detergents, etc.) This report specifically targets dishwasher detergents and utilizes the triple bottom line

  10. Hematotoxicity in Workers Exposed to Low Levels of Benzene Qing Lan1,*, Luoping Zhang2,*, Guilan Li3, Roel Vermeulen1, Rona S. Weinberg4, Mustafa

    E-Print Network [OSTI]

    California at Berkeley, University of

    Hematotoxicity in Workers Exposed to Low Levels of Benzene Qing Lan1,*, Luoping Zhang2,*, Guilan Li for Cancer Research, NCI, NIH, DHHS, Bethesda, MD 20892, USA. Abstract Benzene is known to have toxic effects million (ppm) remains uncertain. In a study of 250 workers exposed to benzene, white blood cell

  11. The occupational status of partnered lesbians, compared to married women and heterosexual cohabiting women 

    E-Print Network [OSTI]

    Lin, Chin-Huei

    2009-05-15

    This thesis utilizes a regression model and three different occupational status scores, namely, Duncan‘s SEI, Nam-Powers-Boyd Occupational Status Score and Prestige Score of Nakao and Treas, to examine the impact of sexual ...

  12. TMC Template

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

    20000 30000 40000 50000 60000 70000 80000 Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun cfs Arrow+Duncan - 1937 Outflow AOP12 AOP15 AOP16 AOP18 Arrow+Duncan - Outflow (cfs) August...

  13. Effects of Orthographic Depth on Literacy Performance: Reading Comprehension Difficulties Across Languages

    E-Print Network [OSTI]

    McClung, Nicola Ann

    2012-01-01

    Duncan, L. G. , Colé, P. , Seymour, P. H. K. , & Magnan,Duncan, L. G. , & Seymour, P. H. K. (2000). Socio-economicReview, 97, 477–452. Seymour, P. , Aro, M. , & Erskine, J. (

  14. CALIFORNIA SOLAR DATA MANUAL

    E-Print Network [OSTI]

    Berdahl, P.

    2010-01-01

    Beckman, Solar Energy Thermal Processes (John Wiley & Sons,New York. Solar Energy Thermal Processes. John Duncan, C,

  15. Updated 4/18/2012 COLLEGE OF ENGINEERING COMMITTEES LIST 2012-13

    E-Print Network [OSTI]

    Lipson, Michal

    Advisory Committee2 3-Year Term ends June 30 Pollack, Lois (AEP) 2011 Gebremedhin, Kifle (BEE) 2012 Duncan

  16. UV Direct-Writing of Metals on Polyimide Jack Hoyd-Gigg Ng1,2, Marc P.Y. Desmulliez1,2, Aongus McCarthy2, Himanshu Suyal2, Kevin A. Prior2 and Duncan P.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    UV Direct-Writing of Metals on Polyimide Jack Hoyd-Gigg Ng1,2, Marc P.Y. Desmulliez1,2, Aongus Mc. Silver ions were first incorporated into a hydrolyzed polyimide surface layer by wet chemical treatment allowed the reduction of the silver ions across the MPEG/doped polyimide interface. The resultant silver

  17. 2012 Weinberger et al., licensee InTech. This is an open access chapter distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits

    E-Print Network [OSTI]

    Weinberger, Norman M.

    ] and importantly, posttraining intra-BLA infusions of NE, as well as noradrenergic agonists, enhance memory the memory enhancement induced by systemic intra-amygdala infusions of the muscarinic cholinergic agonist enhancement induced by NE [26, 27]. Intra-amygdala infusions of atropine also block the memory enhancing

  18. The Residential Segregation of Same-Sex Partnered Households from Heterosexual Partnered Households: Metropolitan Statistical Areas in the U.S., 2010 

    E-Print Network [OSTI]

    Deng, Xiaodan

    2015-05-12

    to date. Figure 1, reproduced from Duncan and Duncan (1955), shows a geometrical def- inition of D as the maximum vertical dis- tance between the "segregation curve" and the curve Y = X. The segregation curve is the plot of the cumulative proportion... of whites versus the cumulative proportion of nonwhites, where the respective cumula- tions are obtained by taking the census tracts in order of increasing nonwhite per- centages. The Duncans provided a set of inade- quacies and precautionary comments...

  19. A History

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

    United States Atomic Energy Commission Volume II 19471952 Morale Meld Richard G. Hewlett Francis Duncan 1972 U.S. Atomic Energy Commission CONTENTS FOREWORD BY THE CHAIRMAN,...

  20. A Cognitively Bounded Rational Analysis Model of Dual-Task Performance Trade-Offs

    E-Print Network [OSTI]

    Brumby, Duncan

    . Janssen, Duncan P. Brumby, John Dowell, and Nick Chater c.janssen@ucl.ac.uk, brumby@cs.ucl.ac.uk, j.dowell

  1. Biocorrosive Thermophilic Microbial Communities in Alaskan North Slope Oil Facilities

    E-Print Network [OSTI]

    Duncan, Kathleen E.

    2010-01-01

    in Alaskan North Slope Oil Facilities Kathleen E. Duncan,in Alaskan North Slope oil production facilities. Title:in Alaskan North Slope Oil Facilities Authors: Kathleen E.

  2. Building America - IBACOS

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

    America - IBACOS 2014 Building Technologies Office Peer Review Duncan Prahl, dprahl@ibacos.com IBACOS, Inc. Project Summary Timeline: Start date: January 2013 Planned end date:...

  3. PPS 8.10 Form 1A Page 1 of 4

    E-Print Network [OSTI]

    Upchurch, Gary - Department of Biology, Texas State University

    for Resveratrol." FASEB J. 2006 Aug;20(10):1742-4. Bergh, J.J., Shao, Y., Puente, E.C., Duncan, R.L., and Farach

  4. Moving Images Against The Current: The Aesthetics and Geopolitics of (Im)mobility in Contemporary Europe

    E-Print Network [OSTI]

    Bayraktar, Nilgun

    2011-01-01

    A Manifesto. ” In Unpacking Europe: Towards a Criticalthe Southern Borders of Europe. ” In The Maghreb Connection.Cinema. ” In Screening Europe. Ed. Duncan Petrie. London:

  5. From: Gubin, Michelle Subject: Facilities Operations Update -September 7th to September 13th

    E-Print Network [OSTI]

    Grant, Gregory

    Sewer District's (MSD) project to upgrade the storm sewer in Duncan Avenue will require the closure delays. Duncan has been a utility highway for more than a century. It is packed with old and new sewer water sewer has posed numerous challenges. The red circle on the map below is the area mentioned

  6. Bayesian latent variable modelling in studies of air pollution and health

    E-Print Network [OSTI]

    Scheichl, Robert

    Bayesian latent variable modelling in studies of air pollution and health Duncan Lee, Gavin://www.bath.ac.uk/math-sci/BICS #12;Bayesian latent variable modelling in studies of air pollution and health. Duncan Lee (1), Gavin to air pollution on respiratory mortality in the elderly (aged 65 and above) in London, England, between

  7. IEEE TRANSACTIONS ON AUTOMATIC CONTROL, VOL. 44, NO. 9, SEPTEMBER 1999 1653 Adaptive Continuous-Time Linear

    E-Print Network [OSTI]

    Guo, Lei

    IEEE TRANSACTIONS ON AUTOMATIC CONTROL, VOL. 44, NO. 9, SEPTEMBER 1999 1653 Adaptive Continuous-Time Linear Quadratic Gaussian Control T. E. Duncan, Fellow, IEEE, L. Guo, Fellow, IEEE, and B. Pasik-Duncan, Senior Member, IEEE Abstract-- The adaptive linear quadratic Gaussian control problem, where the linear

  8. Investigation of Transcription Factor Binding Sequences and Target Genes using Protein Binding Microarrays

    E-Print Network [OSTI]

    Bolotin, Eugene Leonidovich

    2010-01-01

    64] A. J. Watt, W. D. Garrison, and S. A. Duncan. HNF4: aBattle, K. Si-Tayeb, W. Garrison, S. Chhinder, J. Li, R. J.43, [40] A. J. Watt, W. D. Garrison, and S. A. Duncan. HNF4:

  9. PROGRAMME GROUP RESEARCH UPDATE: Biodiversity indicators &

    E-Print Network [OSTI]

    operations and impacts, tree species type and site quality, observation and evidence of forest biological1 PROGRAMME GROUP RESEARCH UPDATE: Biodiversity indicators & knowledge management programme group Introduction Duncan Ray The programme group Biodiversity Indicators and Knowledge Management (BIKM

  10. Perception & Psychophystcs 1990, 48 (2), 157-568

    E-Print Network [OSTI]

    Yantis, Steven

    Association). Katrina Van Valen, Robert Marra, Vibha Thakral, and Craig McDowell provided excellent technical; Duncan & Humphreys, 1989; Hoffman, 1978, 1979; Sagi & Julesz, 1985; Schneider & Shiffrin, 1977; Shibuya

  11. Obama Administration's Rural Tour Stops in Western Alaska | Department...

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

    to Zanesville, OH, to discuss green jobs and a new energy economy, with a focus on renewable energies. AUGUST 17TH Secretaries Arne Duncan and Tom Vilsack will travel to Hamlet,...

  12. Leaf dynamics of little bluestem and brownseed paspalum in response to herbivory 

    E-Print Network [OSTI]

    Brown, Joel Raymond

    1983-01-01

    of differences in parameters of interest be- tween treatments, locations, and replications were tested using the General Linear Model proceduce of :. ati sti cal Analysis System (He)wig and Council 1979). Duncans's New Multiple Range Test (Snedecor...

  13. Behavioral/Systems/Cognitive The Dynamic Nature of Top-Down Signals Originating from

    E-Print Network [OSTI]

    is en- hanced in those extrastriate cortical regions that encode rele- vant stimuli (Fuster, 1990; Duncan et al., 1997; Kanwisher and Wojciulik, 2000) and suppressed in regions that represent irrele- vant

  14. Packaging and the Supply Chain: A Look at Transportation

    E-Print Network [OSTI]

    Simon, Rachel; Chen, Yifen

    2013-01-01

    for joint production. Int J LCA 12. Reap J, Roman F, DuncanA (2010) Sensitivity of the LCA allocation procedure for BFSWorkshop on Allocation in LCA, Leiden, pp 39–53 15. Weidema

  15. The dynamics of Kerguelen Plateau magma evolution: New insights from major element, trace element and Sr isotope microanalysis of plagioclase hosted in Elan

    E-Print Network [OSTI]

    Sciences, University of Durham, Durham DH1 3LE, UK c Chemistry Division, Nuclear and Radiochemistry, Los geologically short spans of time (Coffn and Eldholm, 1994; Duncan, 2002). The submarine Kerguelen Plateau (KP

  16. ORISE: College of American Pathologists renews accreditation...

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

    delighted to have him join our team." Dr. Duncan received a Ph.D. in educational psychology and research from the University of Tennessee in 2009. He also received a master's...

  17. Lab announces selection of partner for venture acceleration initiative

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

    increase the impact of our cross-cutting R&D in creating technology jobs in the regional economy," said Duncan McBranch, LANL's Science, Technology, and Engineering Directorate...

  18. Atmos. Chem. Phys., 8, 68876905, 2008 www.atmos-chem-phys.net/8/6887/2008/

    E-Print Network [OSTI]

    Goldstein, Allen

    mixed layer (OML) imply that in situ biological production must be the main methanol source in the OML. It is a significant global source of tropo- spheric CO (Duncan et al., 2007) and formaldehyde (Millet et al., 2006a

  19. Microsoft Word - CRT 50 yr News Release with logos

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

    ecological uses of the Columbia River. As a direct result of the Treaty, four storage dams were built: Mica, Arrow and Duncan dams in British Columbia, Canada; and Libby Dam in...

  20. TODAY: Secretary Chu and Former Senator John Warner to Host Conference...

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

    Media contact(s): (202) 586-4940 Addthis Related Articles TODAY: Secretary Chu and GM to Hold Conference Call with Virginia Tech Secretaries Chu and Duncan to Host Press...

  1. Church participation and the older adult: An orientational approach

    E-Print Network [OSTI]

    Bell, Bill D.

    1974-04-01

    members) located in Northeastern Kansas in the spring of 1970. The Duncan Socio-Economic Index (Blau and Duncan, 1967) was employed to differentiate white collar from blue collar occupations. This index computes SES scores and assigns decile rankings... significant relationship was noted between instrumental orientation scores and church participation. No significant relationship was observed in the case of expressive scores. The tendency was apparent to view participation in the church as a means to one...

  2. 3rd Faculty 

    E-Print Network [OSTI]

    Unknown

    2011-08-17

    , THEIR MEAN AND 95X CONFIDENCE INTERVALS FOR GENERATED CONCENTRATIONS . . . 21 TABLE 2. DUNCAN'S MULTIPLE RANGE TEST FOR VARIABLE 6, REFERENCE SCALE LEFT OR RIGHT. . . 30 TABLE 3. TABLE 4. VARIABILITY OF PANELISTS. DUNCAN'S MULTIPLE RANGE TEST.... . 34 . 50 TABLE A. 2. MIRAN CALIBRATION DATA, MEDIUM 1-BUTANOL CONCENTRATIONS' . . . . . ~ . . . . . ~ . 50 TABLE A. 3. MIRAN CALIBRATION DATA, HIGH 1-BUTANOL CONCENTRATIONS' . . . . . . . . ~ - ~ ~ ~ . 52 TABLE B. l. VOLUMETRIC FLOW RATES...

  3. Regulation of Adult Physiology and Behavior in Drosophila melanogaster 

    E-Print Network [OSTI]

    Schwedes, Christoph 1980-

    2012-10-26

    OF PHILOSOPHY Approved by: Chair of Committee, Ginger E. Carney Committee members, Andreas Holzenburg Duncan MacKenzie Vladislav Panin Head of Department, U. J. McMahan December 2012 Major Subject: Biology Copyright 2012 Christoph Cleland... I would like to thank my committee chair, Dr. Ginger Carney, and my committee members, Dr. Andreas Holzenburg, Dr. Duncan MacKenzie, and Dr. Vlad Panin for their guidance and support throughout the course of this research. My committee members...

  4. 198 IEEE TRANSACTIONS ON NUCLEAR SCIENCE, VOL. 51, NO. 1, FEBRUARY 2004 Custom Breast Phantom for an

    E-Print Network [OSTI]

    Lanconelli, Nico

    , University of Pisa, 56126 Pisa, Italy. W. Bencivelli is with Department of Internal Medicine, University of Pisa, 56126 Pisa, Italy. I. Weinberg is with PEM Technologies, Bethesda MD 20187 USA. Digital Object

  5. Eugene P. Wigner - Patents - 1956 through 1957

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

    cooling of the active fissionable material in the event of failure of the principal cooling system. (auth) US 2,743,225 REACTOR - Wigner, E. P.; Weinberg, A. M.; Young, G....

  6. Renormalization and power counting of chiral nuclear forces

    E-Print Network [OSTI]

    Long, Bingwei

    2013-01-01

    I discuss the progress we have made on modifying Weinberg's prescription for chiral nuclear forces, using renormalization group invariance as the guideline. Some of the published results are presented.

  7. Renormalization and power counting of chiral nuclear forces

    E-Print Network [OSTI]

    Bingwei Long

    2013-07-02

    I discuss the progress we have made on modifying Weinberg's prescription for chiral nuclear forces, using renormalization group invariance as the guideline. Some of the published results are presented.

  8. Renormalization and power counting of chiral nuclear forces

    SciTech Connect (OSTI)

    Long, Bingwei [JLAB

    2013-08-01

    I discuss the progress we have made on modifying Weinberg's prescription for chiral nuclear forces, using renormalization group invariance as the guideline. Some of the published results are presented.

  9. A comparative study of seating for the elderly and arthritic 

    E-Print Network [OSTI]

    Gueths, Ellen Ann

    1985-01-01

    96 31. 32. Kilograms (lbs. ) of Force at 25. 4 cm (10. 0 in. ) Armrest Height for Height Category = Average. Maximum Pressure in mmHg (lbs/in ) - Duncans Multiple Range 2 Test ~ 98 104 33. Mean Pressure in mmHg (lbs/in ) ? Duncans Multiple... by Finlay, Bayles, Rosen, and Milling. Finlay et al. (1983) has shown that ambulatory women (average age of 80) could rise more easily from a seat 40. 6 cm (16. 0 in. ) to 43. 2 cm (17. 0 in. ) high than from a lower seat. Finlay et al. also found...

  10. Development and Features EatSafe: Modular Portable Food Sensor

    E-Print Network [OSTI]

    California at San Diego, University of

    , Duncan McClure5 Support Members: Chau Ly2,3, David Zhao4, Nolan Nitta1 3D Printer / Laser Cutter On prototyping using state of the art laser cutting and 3D printer processes allowed for the device

  11. Timevarying coe#cient models for the analysis of air pollution and health outcome data

    E-Print Network [OSTI]

    Bath, University of

    Time­varying coe#cient models for the analysis of air pollution and health outcome data Duncan Lee and Gavin Shaddick Abstract In this paper, a time­varying coe#cient model is developed for air pollution and mortality data, which allows for an interaction between the e#ect of air pollution and time. Such temporal e

  12. Proceedings of the Institution of Civil Engineers

    E-Print Network [OSTI]

    Al-Shayea, Naser Abdul-Rahman

    in soils. Proceedings of the ASCE, Journal of the Soil Mechanics and Foundations Division, 1970, 96, No. SM, ???­??? Discussion Determination of parameters for a hyperbolic model of soils N. Al-Shayea, S. Abduljauwad, R for soils. The hyperbolic model of Duncan and Chang,1 which forms the basis of the paper, has been

  13. SDSU General Catalog 2013-2014 199 Computational Science

    E-Print Network [OSTI]

    Gallo, Linda C.

    SDSU General Catalog 2013-2014 199 COMP Computational Science In the College of Sciences OFFICE: Geology/Mathematics/Computer Science 206H TELEPHONE: 619-594-3430 / FAX: 619-594-2459 http Sciences), Demasi (Aerospace Engineering), Duncan (Mathematics and Statistics), Edwards (Computer Science

  14. SDSU General Catalog 2012-2013 197 Computational Science

    E-Print Network [OSTI]

    Gallo, Linda C.

    SDSU General Catalog 2012-2013 197 COMP Computational Science In the College of Sciences OFFICE: Geology/Mathematics/Computer Science 206H TELEPHONE: 619-594-3430 / FAX: 619-594-2459 http Sciences), Duncan (Mathematics and Statistics), Edwards (Computer Science), Fan (Mathematics and Statistics

  15. High Performance Architecture for Elliptic Curve Scalar Multiplication over GF(2m

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    1 High Performance Architecture for Elliptic Curve Scalar Multiplication over GF(2m ) Junjie Jiang's, is a promising technology for new cryptographic applications. It can achieve high security levels, Jing Chen, Jian Wang, Duncan S. Wong, and Xiaotie Deng Abstract We propose a new architecture

  16. APJ (ACCEPTED) Preprint typeset using LATEX style emulateapj v. 5/2/11

    E-Print Network [OSTI]

    Price, Daniel

    PERSISTENT EMISSION DURING SUB-EDDINGTON THERMONUCLEAR BURSTS HAUKE WORPEL 1,2 , DUNCAN K. GALLOWAY 1-ray bursts, discovered in the 1970s (Grindlay et al. 1976; Belian et al. 1976), arise from thermonuclear minutes (e.g., Galloway et al. 2008), and emit a total energy of 1039 ­1040 erg. Type I bursts provide

  17. Boundary lubrication under water Wuge H. Briscoe1

    E-Print Network [OSTI]

    Klein, Jacob

    LETTERS Boundary lubrication under water Wuge H. Briscoe1 , Simon Titmuss1 , Fredrik Tiberg1 {, Robert K. Thomas1 , Duncan J. McGillivray1 { & Jacob Klein1,2 Boundary lubrication, in which the rubbing. This process, wide- spread in engineering applications, is also predicted to occur in biological lubrication

  18. Gerry McCartney Vice President for Information Technology

    E-Print Network [OSTI]

    Pittendrigh, Barry

    Support Coordinator Diane Hawkins SMART Computing Manager William E. Davis III Nancy Humphreys Telephone and Processes Tanner Georgiades Kevin Loeffler Desktop Services Specialist Desktop Services Specialist Bill JonesChristine Deorio Jeff Duncan Bill Helton Kent Longenecker Robert BarnettSamuel Brown Paul Targett

  19. Laser-Scanning Coherent Anti-Stokes Raman Scattering Microscopy and Applications to Cell Biology

    E-Print Network [OSTI]

    Xie, Xiaoliang Sunney

    Laser-Scanning Coherent Anti-Stokes Raman Scattering Microscopy and Applications to Cell Biology Ji 11747-3157 USA ABSTRACT Laser-scanning coherent anti-Stokes Raman scattering (CARS) microscopy with fast., 1990). Duncan et al. constructed the first CARS microscope by use of two dye laser beams

  20. Neo-Latin News 

    E-Print Network [OSTI]

    Craig Kallendorf, et al

    2003-01-01

    )83 ' Duncan-Jones, A. S. The Stru le for Reli ious Freedom in German (Victor Gatlancz LTD, London, 1938) 82 " Jaspert, Bernd (editor) Karl Barth/Rudolf Bultmann Letters/ 1922-1966 (William Eerdmans Publishing Company, Grand Rapids, Michigan, 1981) 78 16...

  1. Tuna-Dolphin-Bird Feeding Assemblages in the Galapagos Islands and Their Response to the Physical Characteristics of the Upper Water Column 

    E-Print Network [OSTI]

    Johnston, Michelle

    2012-10-19

    , offered helpful comments and help in writing this manuscript. I would also like to thank Dr. Steve DiMarco for his help in analyzing the physical data and Dr. Bernd Würsig for his helpful comments on my thesis proposal. Julia O’Hern and Roxanne Duncan...

  2. An improved bus signal priority system for networks with nearside bus stops 

    E-Print Network [OSTI]

    Kim, Wonho

    2005-02-17

    -33 Average control delay per vehicle at the intersections, MOE5, under various headway levels ................................................................170 Table 7-34 Results of Duncan test for percentage change in MOE5 under various headway... ...................................................................................................55 x ...................................................................................................................................... Page Figure 4-2 Observed and predicted passenger arrival during off peak period at stop A...

  3. Guideline and Recommended Standard for

    E-Print Network [OSTI]

    , Hampton, VA Vice Chair: Joseph H. Boardman, Commissioner, New York State DOT Executive Director: Robert E SARAH C. CAMPBELL, President, TransManagement, Inc., Washington, DC E. DEAN CARLSON, Director, Carlson Associates, Topeka, KS JOHN L. CRAIG, Director, Nebraska Department of Roads DOUGLAS G. DUNCAN, President

  4. Observations on Low-Speed Aeroelasticity Robert H. Scanlan, Hon.M.ASCE1

    E-Print Network [OSTI]

    McCalley, James D.

    by Strouhal 1878 . Among much later examples might be cited the striking cases of wind-induced flutter ad- vanced considerably with the work of Frazer Frazer and Duncan 1928 , Collar, Pugsley, and Glauert incipient galloping conditions in numerous practical cases over some seven decades. By the mid- and latter

  5. A unique opportunity to engage in a dialogue with early childhood teachers

    E-Print Network [OSTI]

    Hickman, Mark

    , and New Zealand College of Early Childhood Education. Contact: Judith Duncan. Registration Full Name and early childhood education. A range of courses in initial teacher education and postgraduate study are available. Kidsfirst Kindergartens is one of New Zealand's largest early childhood education (ECE) providers

  6. Time Capsule Signature: Efficient and Provably Secure Constructions

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Time Capsule Signature: Efficient and Provably Secure Constructions Bessie C. Hu1 , Duncan S. Wong1. Time Capsule Signature, first formalized by Dodis and Yum in Financial Cryptography 2005, is a digital signature scheme which al- lows a signature to bear a (future) time t so that the signature will only

  7. Biometrics 000, 124 DOI: 000 A Bayesian localised conditional autoregressive model for estimating the health

    E-Print Network [OSTI]

    Sahu, Sujit K

    for estimating the health effects of air pollution Duncan Lee1, , Alastair Rushworth1 and Sujit K. Sahu2 . 1.Lee@glasgow.ac.uk Summary: Estimation of the long-term health effects of air pollution is a challenging task, especially effects confound the effects of air pollution, which are also globally smooth. To avoid this collinearity

  8. The Effects of Presence on Small Group Collaboration and Interaction in a Collaborative Virtual Environment

    E-Print Network [OSTI]

    Blake, Edwin

    and computer graphics technology, collabora- tive virtual environments are becoming a feasi- ble way to address environment. The user should not per- ceive the existence of any technology between them and the environment Environment Cathryn Johns, Marc Daya, Duncan Sellars, Juan Casanueva, Edwin Blake Collaborative Visual

  9. CLOVER Measuring the CMB B-mode polarisation, 18th Int. Symp. on Space Terahertz Technology, Pasadena, CA, USA 1

    E-Print Network [OSTI]

    Crowther, Paul

    , Pasadena, CA, USA 1 Abstract-- We describe the objectives, design and predicted performance of Clover design which gives very low systematic errors, particularly in cross-polarisation. The telescopes. Calisse2 , A. D. Challinor5,6 , W. D. Duncan7 , P. Ferreira1 , W. K. Gear2 , D. Glowacka3 , D. J. Goldie3

  10. SPRING 2013 MATH 728 Statistical Theory CLASS HOURS: TR 11:00 am 12:15 pm, Room 301 Snow Hall

    E-Print Network [OSTI]

    Pasik-Duncan, Bozenna

    SPRING 2013 MATH 728 Statistical Theory CLASS HOURS: TR 11:00 am ­ 12:15 pm, Room 301 Snow Hall INSTRUCTOR: Professor Bozenna Pasik-Duncan OFFICE: 503 Snow, PHONE: 864-5162 E-MAIL: bozenna@math.ku.edu Web

  11. J Nonlinear Sci (2015) 25:389449 DOI 10.1007/s00332-015-9237-x

    E-Print Network [OSTI]

    Pavliotis, Grigorios

    2015-01-01

    in var- ious biological processes, including lipid transport across the cell membrane, synaptic London, London SW7 2AZ, UK e-mail: a.duncan@imperial.ac.uk G. A. Pavliotis e-mail: g transport (Bressloff and Newby 2013). Diffusion not only occurs within the cell, but can also occur along

  12. An A-Train and model perspective on the vertical distribution of pollution transport in the1 Northern Hemisphere2

    E-Print Network [OSTI]

    Heald, Colette L.

    by Duncan and Bey [2004] with the most dominant export45 towards the northeast over Russia, which can also to investigate34 the vertical structure of pollution during export and long range transport. We focus on the35 export and transport out of three main regions: Asia, Europe, and North38 America.39 Pollution exported

  13. 9 Towards Adaptive Management of Native Vegetation in Regional Landscapes

    E-Print Network [OSTI]

    Burgman, Mark

    in the approach to defining management objectives and specifying assumptions behind vegetation change models9 Towards Adaptive Management of Native Vegetation in Regional Landscapes David H Duncan1 of the `adaptive management' paradigm to natural resource man- agement, using regional management of native

  14. AN ECONOMIC ANALYSIS OF SHELLFISH PRODUCTION ASSOCIATED WITH THE ADOPTION OF INTEGRATED

    E-Print Network [OSTI]

    market implications of IMTA adoption on the west coast for the BC oyster industry? The study considers to be found to increase demand. New market opportunities could be developed in Asian countries, which require with Duncan on this project and his energy, commitment, and interest in the subject matter are a major reason

  15. POPULATION RESPONSES OF COHO AND CHINOOK SALMON TO SEDIMENTATION ASSOCIATED WITH FOREST ROADS IN A COASTAL

    E-Print Network [OSTI]

    _____________________________________________ Committee Member: Duncan Knowler Associate Dean, Faculty of Environment Associate Professor, School suspended-sediment events caused by forest road construction and use on populations of chinook (Oncorhynchus tshawytscha) and coho salmon (Oncorhynchus kisutch) in a medium-sized coastal watershed of the lower Fraser

  16. IEEE TRANSACTIONS ON MEDICAL IMAGING VOL. 15, NO. 4, AUGUST 1996 453 Tracking Myocardial Deformation

    E-Print Network [OSTI]

    Duncan, James S.

    IEEE TRANSACTIONS ON MEDICAL IMAGING VOL. 15, NO. 4, AUGUST 1996 453 Tracking Myocardial Deformation Using Phase Contrast MR Velocity Fields: A Stochastic Approach Fran¸cois G. Meyer, Member, IEEE,, R. Todd Constable, Member, IEEE,, Albert J. Sinusas, and James. S. Duncan, Senior Member, IEEE

  17. Research Note Impacts of climate change on

    E-Print Network [OSTI]

    Research Note Impacts of climate change on forestry in Scotland ­ a synopsis of spatial modelling research Duncan Ray January 2008 Climate change is now one of the greatest global challenges, and research by climate change. This Research Note provides an initial synopsis of the likely impacts, with preliminary

  18. achieving excellence in learning promoting research and scholarship

    E-Print Network [OSTI]

    Martin, Ralph R.

    at Duncan of Jordanstone, in the Law School and Engineering. As the growth in public spending reduces and diabetes, and the economic impact of new engineering and software solutions. Dundee's hallmark the award-winning Dalhousie Building, the Library Extension, completion of the IT network improvement

  19. 1 Zoology Building 2 Cruickshank Building

    E-Print Network [OSTI]

    Neri, Peter

    1 Zoology Building 2 Cruickshank Building 3 23 St Machar Drive 4 King's Museum (Old Town House) 5 The Hub 6 St Mary's 7 Fraser Noble Building 8 Elphinstone Road Halls 9 The Sir Duncan Rice Library 10 Meston Building 11 Chaplaincy Centre 12 Confucius Institute 13 Security Office/Mailroom 14 Counselling

  20. COVER SHEET This is the author version of article published as

    E-Print Network [OSTI]

    Roe, Paul

    facilitated through artificial vision. In Lovell, Brian C. and Campbell, Duncan A. and Fookes, Clinton B for Blind Mobility Facilitated through Artificial Vision Jason Dowling, Anthony Maeder, Wageeh Boles School prostheses, blind mobility, artificial human vision, image processing, computer vision. 1. Introduction

  1. Consecutive Education Summer 2015 Support and Services 3

    E-Print Network [OSTI]

    Fletcher, Robin

    1 Consecutive Education Summer 2015 #12;2 Support and Services 3 Important Dates and Information 4;3 Faculty of Education Support and Services Duncan McArthur Hall is an integrated educational complex community. http://educ.queensu.ca/services Queen's University Support and Services #12;4 Important Dates

  2. Spring/Summer 2013Registered Charity No. SC 009009 Millionth visitor to the Sir

    E-Print Network [OSTI]

    Levi, Ran

    Aberdeen binding acquired ................. 6 Rare railway report . 7 Library team shortlisted for national to national role........ 9 Purchase of The Novels & Tales of Henry James ..............................10Spring/Summer 2013Registered Charity No. SC 009009 Millionth visitor to the Sir Duncan Rice Library

  3. Workgroup #4 The Role of Marketing and Public Awareness in Energy Efficiency What is

    E-Print Network [OSTI]

    Workgroup #4 The Role of Marketing and Public Awareness in Energy Efficiency ­ What is the role of marketing in fostering an energy efficient economy? Co-chairs: Erin Holland, Edelman Teri Duncan, Bonneville effort could effectively advance adoption of energy efficiency practices and enhance the efforts of area

  4. Climate change and British woodland: what does the

    E-Print Network [OSTI]

    Climate change and British woodland: what does the future hold? Mark Broadmeadow, Duncan Ray, Louise Sing and Liz Poulsom There is now convincing evidence that the climate is changing the last ice-age. The potentially serious consequences of predicted climate change for British woodland

  5. The University of Aberdeen is a charity registered in Scotland, No SC013683 Where is it Shelved? A General Guide

    E-Print Network [OSTI]

    Neri, Peter

    , International Relations, Economics 340-349 Taylor Library, TSDRL Floor 6 Law 350-399 TSDRL Floor 6 Public is it Shelved? A General Guide Janet MacKay, May 2014 GI 13 [http://www.abdn.ac.uk/library or the Library Catalogue or consult library staff. Note: TSDRL stands for The Sir Duncan Rice Library. Shelfmark

  6. The University of Aberdeen is a charity registered in Scotland, No SC013683 Music collections in the library

    E-Print Network [OSTI]

    Levi, Ran

    in the library Claire Molloy, July 2013 QG EDU008 [https://www.abdn.ac.uk/library/documents/guides/edu/qgedu008 of outstanding quality in The Sir Duncan Rice Library and anyone with an interest in music may consult the material. University staff and students may borrow free of charge; for other types of borrowers

  7. TABLE 1. -Caloric and ash values for some North Atlantic copepoda. Species are recorded in order from largest to smallest

    E-Print Network [OSTI]

    TABLE 1. - Caloric and ash values for some North Atlantic copepoda. Species are recorded in order of copepods (Table 1) were as follows: 5,251.9 cal/g dry weight, 5,626.3 cal/g ash-free dry weight, and 6.70% ash. Statistical analysis of the means of caloric values for each species (Duncan's New Multiple Range

  8. 1SMARTER Supply Chain Connections Third Party Logistics

    E-Print Network [OSTI]

    Minnesota, University of

    1SMARTER Supply Chain Connections Third Party Logistics: Challenges and the Speed of Change Meg Schmidt Duncan Senior Manager of Carrier Relations Koch Logistics #12;Third Party Logistics Growth · Third party logistics revenue is growing at a rate double the US GDP ­ Global Fortune 500 3PL market revenue

  9. Evaluation of Condor SS as a soil stabilizer 

    E-Print Network [OSTI]

    Ahmed, Shamim

    1995-01-01

    chemicals such as lime, cement and fly-ash. Condor SS, an electrochemical, has been used in our research to evaluate its stabilization capabilities on Burleson clay as well as its overall effectiveness as a soil stabilizer. Tukey and Duncan comparison...

  10. We have only listed Oklahoma Hatcheries as they appear in the National Poultry Improvement Plan. For a listing of hatcheries in your state, contact your state USDA

    E-Print Network [OSTI]

    Balasundaram, Balabhaskar "Baski"

    We have only listed Oklahoma Hatcheries as they appear in the National Poultry Improvement Plan by the Department of Animal Science, Division of Agricultural Sciences and Natural Resources or Oklahoma State University. If you are an Oklahoma Resident you can obtain a copy by contacting: Mr. Ralph Duncan Animal

  11. CX-004544: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Oklahoma State Energy Program American Recovery and Reinvestment Act - Oklahoma Municipal Power Authority (OMPA) Oklahoma Comfort Program Large System Request E and FCX(s) Applied: B5.1Date: 11/24/2010Location(s): Duncan, OklahomaOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  12. Mon. Not. R. Astron. Soc. 402, 20172030 (2010) doi:10.1111/j.1365-2966.2009.16042.x Obscured star formation at z = 0.84 with HiZELS : the relationship

    E-Print Network [OSTI]

    Best, Philip

    2010-01-01

    Gavin B. Dalton,4,5 James S. Dunlop,1 Ross J. McLure1 and Duncan Farrah6 1SUPA, Institute for Astronomy bump in the dust attenuation law for high-redshift star-forming galaxies. By comparing H and UV

  13. SOUTHWEST CATALYSIS 2012 SPRING SYMPOSIUM

    E-Print Network [OSTI]

    Natelson, Douglas

    Daniel Shantz Chemical Engineering Texas A&M University College Station, TX 77843 979-845-3492 shantz.chandler@trinity.edu Lin Luo Dow Chemical Co. 2301 Brazosport Blvd. B-251 Freeport, TX 77541 979-238-3204 LLuo2@dow Chair #12;2012 PROGRAM 7:30 AM Registration ­ John Novak, Treasurer Duncan Hall All talks will be held

  14. SOUTHWEST CATALYSIS 2012 SPRING SYMPOSIUM

    E-Print Network [OSTI]

    Natelson, Douglas

    Daniel Shantz Chemical Engineering Texas A&M University College Station, TX 77843 979-845-3492 shantz.chandler@trinity.edu Lin Luo Dow Chemical Co. 2301 Brazosport Blvd. B-251 Freeport, TX 77541 979-238-3204 LLuo2@dow #12;2012 PROGRAM 7:30 AM Registration ­ John Novak, Treasurer Duncan Hall All talks will be held in Mc

  15. The Myth of "Broken Britain": Welfare Reform and the Production

    E-Print Network [OSTI]

    The Myth of "Broken Britain": Welfare Reform and the Production of Ignorance Tom Slater School, dependency) is repeatedly invoked by the architects of welfare reform to manufacture ignorance of alternative. Keywords: agnotology, welfare reform, Broken Society, Big Society, Iain Duncan-Smith, think tanks

  16. DYNAMICS OF THE KUIPER BELT RENU MALHOTRA

    E-Print Network [OSTI]

    Levison, Harold F.

    DYNAMICS OF THE KUIPER BELT RENU MALHOTRA Lunar and Planetary Institute MARTIN DUNCAN Queen of the Kuiper Belt is re­ viewed here. Numerical results on long term orbital evolution and dynamical mechanisms underlying the transport of objects out of the Kuiper Belt are discussed. Scenarios about the origin

  17. Math 150: Freshman Seminar --Computing in Mathematics Spring, 2014

    E-Print Network [OSTI]

    Leemis, Larry

    . The R package 2. Introduction to the R language 3. Programming statistical graphics 4. Programming in R, W. John, and Murdoch, Duncan J., A First Course in Statistical Programming with R, 2007, Cambridge and Thursday: 3:30 - 5:00 PM, or by appointment Purpose: This class introduces students to the R software

  18. Evaluation of the relationship between cathode microstructure and electrochemical behavior for SOFCs

    E-Print Network [OSTI]

    Florida, University of

    for SOFCs J.R. Smith, A. Chen, D. Gostovic, D. Hickey, D. Kundinger, K.L. Duncan, R.T. DeHoff, K.S. Jones, E spectroscopy SOFC The need for high ef ciency and low emissions power sources has created signi cant interest in fuel cells. Solid oxide fuel cells (SOFCs) are desirable for their fuel versatility. Because high

  19. Frontires sociales, mentales, politiques : sur quelques caractristiques du libralisme. Regard sur la protection sociale.

    E-Print Network [OSTI]

    Boyer, Edmond

    ·sident Lincoln Johnson, au nom ·vocateur de War against poverty1 . De nombreux auteurs ont analys· cette: A Comparative Analysis", in Bristish Journal of Political Science, 3, nPoverty.J.: Rutgers University Press, 1988 ; Duncan G.J., "Poverty and social Assistance Dynamics in the United States

  20. Basin Resonances in the Equatorial Indian Ocean WEIQING HAN

    E-Print Network [OSTI]

    Han, Weiqing

    Basin Resonances in the Equatorial Indian Ocean WEIQING HAN Department of Atmospheric and Oceanic, LOCEAN, Paris, France BENE´ T DUNCAN Department of Atmospheric and Oceanic Sciences, University in the equatorial Indian Ocean (IO) interact to form basin resonances at the semiannual (180 day) and 90-day periods

  1. Metric Attractors for Smooth Unimodal Maps Jacek Graczyk

    E-Print Network [OSTI]

    Sands, Duncan

    Metric Attractors for Smooth Unimodal Maps Jacek Graczyk #3; Dept. of Math. University of Paris XI 91405 Orsay Cedex France Duncan Sands CNRS, Dept. of Math. University of Paris XI 91405 Orsay Cedex attractor for some dynamics if the basin of attraction B(A) := fx : !(x) #26; Ag of A has positive Lebesgue

  2. Some examples of different descriptions of energy-momentum density in the context of Bianchi IX cosmological model

    E-Print Network [OSTI]

    Z. Nourinezhad; S. Hamid Mehdipour

    2012-03-08

    Based on the Bianchi type IX metric, we calculate the energy and momentum density components of the gravitational field for the five different definitions of energy-momentum, namely, Tolman, Papapetrou, Landau-Lifshitz, M{\\o}ller and Weinberg. The energy densities of M{\\o}ller and Weinberg become zero for the spacetime under consideration. In the other prescriptions, i.e., Tolman, Papapetrou and Landau-Lifshitz complexes, we find different non-vanishing energy-momentum densities for the given spacetime, supporting the well-known argument in General Relativity that the different definitions may lead to different distributions even in the same spacetime background.

  3. Liquid Cooling for a SeaSonde Transmitter Acknowledgements

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    Liquid Cooling for a SeaSonde Transmitter Acknowledgements Thanks to Nelson Bednersh and Andy Weinberg at the UCSB College of Engineering Machine Shop Figure 4. The water cooling block with the cover will be monitored. Design Criteria No modification to the stock transmitter ­ cooling block fits between amplifier

  4. Brachytherapy 3 (2004) 147152 Comparison of inverse planning simulated annealing and geometrical

    E-Print Network [OSTI]

    Pouliot, Jean

    2004-01-01

    Brachytherapy 3 (2004) 147­152 Comparison of inverse planning simulated annealing and geometrical optimization for prostate high-dose-rate brachytherapy I-Chow J. Hsu1,*, Etienne Lessard1 , Vivian Weinberg2) algorithm for optimization of high- dose-rate (HDR) brachytherapy has been previously described

  5. This article was downloaded by: [Eugene Goldfield] On: 12 November 2012, At: 16:25

    E-Print Network [OSTI]

    Park, Yong-Lae

    , Damian G. Kelty-Stephen, and Leia Stirling Wyss Institute for Biologically Inspired Engineering G. Kelty-Stephen b , Leia Stirling b , Marc Weinberg c , Dava Newman d , Radhika Nagpal b , Elliot's Hospital Boston, Wyss Institute for Biologically Inspired Engineering at Harvard University b Wyss

  6. THE PARITY NON-CONSERVING ELECTRON-NUCLEON INTERACTION

    SciTech Connect (OSTI)

    Commins, E.D.; Bucksbaum, P.H.

    1980-01-01

    We present general ideas concerning the neutral weak eq interaction. Then we describe the salient features of the Weinberg-Salam model, discuss in detail the principles and methods of the SLAC polarized electron scattering experiment and atomic physics experiments, and summarize neutral weak interaction results and their implications.

  7. On the Relation Between Steep Monoclinal Flexure Zones and Steep Hydraulic Gradients

    E-Print Network [OSTI]

    Lyakhovsky, Vladimir

    On the Relation Between Steep Monoclinal Flexure Zones and Steep Hydraulic Gradients by Y. Yechieli1, U. Kafri2, S. Wollman2, V. Lyakhovsky2, and R. Weinberger2 Abstract Steep hydraulic gradients of the hydraulic conductivity, which is responsible for the steep gradients, has seldom been studied. We present

  8. THE ASTROPHYSICAL JOURNAL, 566:619622, 2002 February 20 ( 2002. The American Astronomical Society. All rights reserved. Printed in U.S.A.

    E-Print Network [OSTI]

    Scudellaro, Paolo

    solutions for quintessence models. The best-Ðt values for are smaller than in the "-term model, but still an accelerated expan- sion of our universe. It is well known that all known types of matter generate attraction observational and theoretical cosmo- logists (Weinberg 1989; Dolgov, Sazhin, & ZelÏdovich 1990; ZelÏdovich 1992

  9. A Computational Model of Aging and Calcification in the Aortic Heart Valve

    E-Print Network [OSTI]

    Mofrad, Mohammad R. K.

    A Computational Model of Aging and Calcification in the Aortic Heart Valve Eli J. Weinberg1 of America Abstract The aortic heart valve undergoes geometric and mechanical changes over time. The cusps of a normal, healthy valve thicken and become less extensible over time. In the disease calcific aortic

  10. Rick's "Top Ten" List of Best Fish Books (books that mesh interesting fish biology with the intricate relationships among the social, economic, and political aspects of human society, fish

    E-Print Network [OSTI]

    Taylor, Eric B. "Rick"

    ! Samantha Weinberg 4. A River Never Sleeps. Seasonal account of the salmon and trout of British Columbia (with the occasional foray to the chalk streams of England) and the rivers that sustain them by a famous tragic battle between man, a poor Cuban fisherman named Santiago, and beast ­ a giant marlin (with sharks

  11. QCD Perturbation Theory at Low Energies

    E-Print Network [OSTI]

    A. C. Mattingly; P. M. Stevenson

    1992-07-09

    We apply the optimization procedure based on the Principle of Minimal Sensitivity to the third-order calculation of $\\R$. The effective couplant remains finite, freezing to a value $\\alpha_s/\\pi = 0.26$ at low energies. Using Poggio-Quinn-Weinberg smearing we find good agreement between theory and experiment right down to zero energy.

  12. Large Margin Taxonomy Embedding with an Application to Document Categorization

    E-Print Network [OSTI]

    Weinberger, Kilian

    Large Margin Taxonomy Embedding with an Application to Document Categorization Kilian Weinberger that the topics are not just discrete classes, but are nodes in a complex taxonomy with rich inter-topic relationships. For example, web pages can be categorized into the Yahoo! web taxonomy or medical journals can

  13. TO: JGGB Executive Committee FR: Sanjay Kumar, Co-Chair

    E-Print Network [OSTI]

    Keaveny, Tony

    select January 2013 Admission Committee Meeting date, co-chair discussion · Follow up, JGGB Admissions Committee Membership update handbook, Pauling · Faculty Application: William Seeley, Leor Weinberger, Rada Savic pending application materials ******* UCB meetings are held 10:00 to 12:00, in 421 Stanley Hall

  14. Versatile, fuel-powered active gas mask or room air purifier Paul D. Ronney, Department of Aerospace and Mechanical Engineering

    E-Print Network [OSTI]

    mixtures much leaner than the conventional lean flammability limit. The most effective configuration, Weinberg demonstrated steady burning with mixtures 5 times less fuel than the lean limit of conventional. · Shelf life. Hydrocarbons have virtually unlimited shelf life compared to batteries. · Integrated

  15. Paolo Piazza Curriculum Vitae et Studiorum.

    E-Print Network [OSTI]

    Piazza, Paolo

    in Interaction, in Cortona (with W. Lueck, R. Melrose, T. Schick and S. Weinberger). · Organizer in May 2012 (with W. Lueck, R. Melrose and T. Schick). · Organizer (with Jochen Br¨uning and Rafe Mazzeo analysis". CIRM, Luminy, June 2008. · Organizer (with Paul Baum, Richard Melrose and Thomas Schick

  16. Focus Article Open challenges in magnetic drug

    E-Print Network [OSTI]

    Shapiro, Benjamin

    Focus Article Open challenges in magnetic drug targeting Benjamin Shapiro,1,2 Sandip Kulkarni,1 Aleksander Nacev,3 Silvia Muro,1,4 Pavel Y. Stepanov3 and Irving N. Weinberg3 The principle of magnetic drug is that highlight- ing these challenges will help researchers translate magnetic drug targeting from a novel concept

  17. Experiences Needed to Prepare Early Career Agriculture Teachers 

    E-Print Network [OSTI]

    Breeding, Lockie Renee

    2015-04-28

    end up working in the future, they will be extremely blessed to have the great Dr. Smith in their presence! Jason, thanks for always sharing your random knowledge of everything with me! You have opened up my ears to a whole new world of musical... teachers in the profession today (Birkenholz & Harbstreit, 1987; Camp, Broyles, & Skelton, 2002; Duncan, Ricketts, Peake, & Uesseler, 2006; Edwards & Briers, 1999; Garton & Chung, 1996; Joerger, 2002; Layfield & Dobbins, 2002; Mundt & Connors, 1999...

  18. United Stat es Department of the I nt.erior, J . A. Krug, Secr etar y Fish and Wildlife Service, Albert M. Day, Direct or

    E-Print Network [OSTI]

    ~ By Enoch S. Duncan 11 June 1948~. Before World War II, fishing ar eas i n the Red Sea along the Egypt i an coast Vler e exploit ed by Italian commercial f i shermen oper ating between fifty and sixty motor-power 'Department officials consi der a natural paucity of fi sh in Egypt i an waters. 'The validity of t he l atter

  19. First British Mesozoic spider, from Cretaceous amber of the Isle of Wight, southern England

    E-Print Network [OSTI]

    Selden, Paul A.

    2002-01-01

    -Aptian of Koonwarra, South Australia (Jell and Duncan 1986); orbicularian araneo- morphs from the Berriasian-Valanginian of the Sierra de Montsech, Spain (Selden 1989, 1990, 1991); an unnamed lycosoid from Orapa, Botswana ('early Upper Cretaceous'; Rayner... been described (Mesquita 1996). Spiders are known from Cretaceous amber from Canada (Campanian; McAlpine and Martin 1969), Siberia (Albian-Santonian; Eskov and Wunderlich 1994; Zherikhin and Eskov 1999), France (Cenomanian; Schlüter 1978), Lebanon...

  20. Acid soil fertility at the Cinzana station, Mali, West Africa 

    E-Print Network [OSTI]

    Doumbia, Mamadou Diosse

    1990-01-01

    (field) experiments. . . 51 10 Sorghum plant height at 13 days as influenced by lime, rock phosphate, and various nutrient combinations under greenhouse conditions. Interaction means are tested at the P = 0. 05 level, using Duncan's new multiple range... test as follows: lower case letters indicate significance of nutrients within each amendment while capital letters indicate significance of amendments within each nutrient. 61 Sorghum plant height at 37 days as influenced by lime, rock phosphate...

  1. Planning electricity transmission to accommodate renewables: Using two-stage programming to evaluate flexibility and the cost of disregarding uncertainty

    E-Print Network [OSTI]

    van der Weijde, Adriaan Hendrik; Hobbs, Benjamin F.

    2011-01-31

     Niall Duncan (Univ. Edinburgh) for generating the hydro output data and to  lex Haffner  (National  Grid)  for  supplying  the  demand  data.  However,  any  errors  or  views  expressed  are  ntirely our own responsibility.  A e   2  A at...   system. The resulting model is then used to determine the optimally expansion plan under  uncertainty. We compare  these  results  to  those  that would occur under more  traditional  planning methods...

  2. Essays on International Trade

    E-Print Network [OSTI]

    Lugovskyy, Oleksandr

    2013-12-31

    Essays on International Trade By Copyright 2013 Oleksandr Lugovskyy Submitted to the Department of Economics and the Faculty of the Graduate School of the University of Kansas in partial fulfillment of the requirements for the degree of Doctor... of Philosophy Committee members Ted Juhl, Chairperson Paul Comolli Joseph Sicilian Alexandre Skiba Bozenna Pasik-Duncan Date defended: August 16, 2013 The Dissertation Committee for Oleksandr Lugovskyy certifies that this is the approved version of the following...

  3. TIMBERMIST-YUKON-JACK sh-KANIKSU-REIGN

    E-Print Network [OSTI]

    Lacy, Bob

    TIMBERMIST-YUKON-JACK wr-DUNCAN sh-KANIKSU-REIGN GLENDON'S-SWEETIE nd-X-CHEENA gm-X-NORTH-TRAV'LER gm-X-CEDAR-ADAHI hr-NOKOMIS-DREAM gm-X-TANACROSS gm-X-SCHOODIC-MIST gm-X-YUKON-CHARLEY gm-X-COHO gm-X-SINAMOKST-RED gm-LYRIC-TIKAANI gm-TANAINA gm-KINGUYAKKIIcn-NORTHERN-KODIAK BASHABA-MURPHY BASHABA-SAKARI-DAWN PIPPA

  4. Hewlett and Holl - Atoms for Peace and War | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuelsof Energy ServicesContracting OversightEMS Policyand CoolingEnergyDuncanHoll

  5. Measuring the black hole spin direction in 3D Cartesian numerical relativity simulations

    E-Print Network [OSTI]

    Vassilios Mewes; José A. Font; Pedro J. Montero

    2015-05-27

    We show that the so-called flat-space rotational Killing vector method for measuring the Cartesian components of a black hole spin can be derived from the surface integral of Weinberg's pseudotensor over the apparent horizon surface when using Gaussian normal coordinates in the integration. Moreover, the integration of the pseudotensor in this gauge yields the Komar angular momentum integral in a foliation adapted to the axisymmetry of the spacetime. As a result, the method does not explicitly depend on the evolved lapse $\\alpha$ and shift $\\beta^i$ on the respective timeslice, as they are fixed to Gaussian normal coordinates, while leaving the coordinate labels of the spatial metric $\\gamma_{ij}$ and the extrinsic curvature $K_{ij}$ unchanged. Such gauge fixing endows the method with coordinate invariance, which is not present in integral expressions using Weinberg's pseudotensor, as they normally rely on the explicit use of Cartesian coordinates.

  6. Infrared Safe but Infinite: Soft-Gluon Divergences Inside the Physical Region

    E-Print Network [OSTI]

    S. Catani; B. R. Webber

    1997-10-13

    We show that QCD observables defined as infrared- and collinear-safe, according to the usual Sterman-Weinberg criteria, can nevertheless be infinite at accessible points inside phase space, to any finite order of perturbation theory. Infrared finiteness is restored after resummation of divergent terms to all orders. The resulting characteristic structure, which we call a Sudakov shoulder, represents an interesting new class of QCD predictions.

  7. Homospory 2002: An Odyssey of Progress in Pteridophyte Genetics and Evolutionary Biology

    E-Print Network [OSTI]

    Haufler, Christopher H.

    2002-01-01

    variability housed in each separate population, whereas others dispersed their variability among their pop- ulations. With outcrossing breeding systems, the movement of alleles between individuals and among populations is more likely than if inbreeding... char- acteristics (how genes are shared between individuals and pop- ulations) of species. Population statistics. Population biologists use confor- mance to Hardy-Weinberg (H-W) frequencies as an indica- tor of the type of mating system. Populations...

  8. Electron capture from H2 to highly charged Th and Xe ions trapped at center-of-mass energies near 6 eV

    E-Print Network [OSTI]

    Electron capture from H2 to highly charged Th and Xe ions trapped at center-of-mass energies near 6 eV G. Weinberg,1,* B. R. Beck,2 J. Steiger,2 D. A. Church,1 J. McDonald,2 and D. Schneider2 1 Laboratory, P.O. Box 808, Livermore, California 94550 Received 19 May 1997 Ions with charge states as high

  9. Can one extract the pi-neutron scattering length from pi-deuteron scattering?

    E-Print Network [OSTI]

    A. Nogga; C. Hanhart

    2005-11-02

    We give a prove of evidence that the original power counting by Weinberg can be applied to estimate the contributions of the operators contributing to the pi-deuteron scattering length. As a consequence, pi-deuteron observables can be used to extract neutron amplitudes--in case of pi-deuteron scattering this means that the pi-neutron scattering length can be extracted with high accuracy. This result is at variance with recent claims. We discuss the origin of this difference.

  10. Localization of overlap eigenmodes and topological charge

    E-Print Network [OSTI]

    . Quandt et al., Phys. Rev. D71: 054026 (2005) 3. M. Quandt et al., PoS LAT2005: 320 (2006) valence overlap study of vacuum structure: 1. Y. Koma et al., PoS LAT2005: 300 (2006) 2. E.-M. I. et al., Nucl. Phys. Proc. Suppl. 153: 328 (2006) 3. V. Weinberg et al., PoS LAT2006: 078 (2006) 4. E.-M. I. et al., AIP

  11. Energy Distribution of a Regular Class of Exact Black Hole Solutions

    E-Print Network [OSTI]

    I-Ching Yang; Chi-Long Lin; I. Radinschi

    2009-11-10

    In this paper we present the expressions for the energy of a regular class of exact black hole solutions of Einstein's equations coupled with a nonlinear electrodynamics source. We calculate the energy distribution using the Einstein, Weinberg and M{\\o}ller prescriptions. We make a discussion of the results in function of two specific parameters, a sort of dipole and quadrupole moments of the nonlinear source $\\alpha$ and $\\beta$, and in addition a study of some particular cases is performed.

  12. Leptogenesis and Neutrino Oscillations in the Classically Conformal Standard Model with the Higgs Portal

    E-Print Network [OSTI]

    Valentin V. Khoze; Gunnar Ro

    2013-09-26

    The Standard Model with an added Higgs portal interaction and no explicit mass terms is a classically scale-invariant theory. In this case the scale of electroweak symmetry breaking can be induced radiatively by the Coleman-Weinberg mechanism operational in a hidden sector, and then transmitted to the Standard Model through the Higgs portal. The smallness of the generated values for the Higgs vev and mass, compared to the UV cutoff of our classically scale-invariant effective theory, is naturally explained by this mechanism. We show how these classically conformal models can generate the baryon asymmetry of the Universe without the need of introducing mass scales by hand or their resonant fine-tuning. The minimal model we consider is the Standard Model coupled to the Coleman-Weinberg scalar field charged under the $U(1)_{B-L}$ gauge group. Anomaly cancellation requires automatic inclusion of three generations of right-handed neutrinos. Their GeV-scale Majorana masses are induced by the Coleman-Weinberg field and lead to the generation of active neutrino masses through the standard see-saw mechanism. Leptogenesis occurs via flavour oscillations of right-handed sterile neutrinos and is converted to the baryon asymmetry by electroweak sphalerons.

  13. Emergence of the Electroweak Scale through the Higgs Portal

    E-Print Network [OSTI]

    Christoph Englert; Joerg Jaeckel; Valentin V. Khoze; Michael Spannowsky

    2013-02-12

    Having discovered a candidate for the final piece of the Standard Model, the Higgs boson, the question remains why its vacuum expectation value and its mass are so much smaller than the Planck scale (or any other high scale of new physics). One elegant solution was provided by Coleman and Weinberg, where all mass scales are generated from dimensionless coupling constants via dimensional transmutation. However, the original Coleman-Weinberg scenario predicts a Higgs mass which is too light; it is parametrically suppressed compared to the mass of the vectors bosons, and hence is much lighter than the observed value. In this paper we argue that a mass scale, generated via the Coleman-Weinberg mechanism in a hidden sector and then transmitted to the Standard Model through a Higgs portal, can naturally explain the smallness of the electroweak scale compared to the UV cutoff scale, and at the same time be consistent with the observed value. We analyse the phenomenology of such a model in the context of present and future colliders and low energy measurements.

  14. A Framework for Index Bulk Loading and Dynamization

    E-Print Network [OSTI]

    Agarwal, Pankaj K.; Arge, Lars; Procopiuc, Octavian; Vitter, Jeffrey Scott

    2001-01-01

    and robust access method for points and rectangles. In Proc. SIGMOD Intl. Conf. on Management of Data, pages 322-331, 1990. 11. J. L. Bentley. Multidimensional binary search trees used for associative searc hing. Commun. ACM, 18(9):509-517, 1975. 12. J. L.... Kabra, J. M. Patel, and J.-B. Yu. Client-server Paradise. In Proc. 19th Intl. Conf. on Very Large Databases, pages 558-569, 1994. 18. C. A. Duncan, M. T. Goodrich, and S. Kobourov. Balanced aspect ratio trees: Com bining the advantages of k-d trees...

  15. Training working memory and fluid intelligence in older adults: developing measures and exploring outcomes

    E-Print Network [OSTI]

    Hynes, Sinéad

    2013-04-16

    as reflecting g. Such batteries often include measures with a high WM demand (e.g. Wechsler, 1981). Another method is to administer a single test that has a particularly high loading on g (Duncan, Burgess & Emslie, 1995). As discussed further below... is extremely motivating for me to see as a student. To Dr. Russell Thompson for providing the Feature Match task used in chapter two and for his encouraging advice over cups of tea in the kitchen. And my thanks go to two visiting students to the unit...

  16. Cement kiln flue dust as a source of lime and potassium in four East Texas soils 

    E-Print Network [OSTI]

    Poole, Warren David

    1975-01-01

    (18) a 5. 3 (84) a 4. 8 (76) a 4. 2 (66) a 3. 8 (61) a 5. 2 (82) a 4. 1 (64) a 5. 0 (80) a *Duncan's Multiple Range Test. ? = . 05. Differences in yield due to rate of applied lime material followed by the same letter are not significantly...CEMENT KILN FLUE DUST AS A SOURCE OF LIME AND POTASSIUM IN FOUR EAST TEXAS SOILS A Thesis by WARREN DAVID POOLE Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER...

  17. Numerical Simulation of Earth Pressure on Head Chamber of Shield Machine with FEM

    SciTech Connect (OSTI)

    Li Shouju; Kang Chengang [State Key Laboratory of structural analysis for industrial equipment, Dalian University of Technology, Dalian 116023 (China); Sun, Wei [School of Mechanical Engineering, Dalian University of Technology, Dalian 116023 (China); Shangguan Zichang [School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116023 (China); Institute of Civil Engineering, Dalian Fishery University, Dalian 116023 (China)

    2010-05-21

    Model parameters of conditioned soils in head chamber of shield machine are determined based on tree-axial compression tests in laboratory. The loads acting on tunneling face are estimated according to static earth pressure principle. Based on Duncan-Chang nonlinear elastic constitutive model, the earth pressures on head chamber of shield machine are simulated in different aperture ratio cases for rotating cutterhead of shield machine. Relationship between pressure transportation factor and aperture ratio of shield machine is proposed by using aggression analysis.

  18. The effect of stride length alterations on running efficiency in beginning runners 

    E-Print Network [OSTI]

    James, Jerry Lynn

    1980-01-01

    summary table for caloric cost 2 Descriptive statistics for caloric cost 3 Duncan's New Nultiple Range Test for Stride Length 18 20 LIST OF FIGURES F1gure Page l The eff1cient range of a runner 2 The relat1ve roles of Stride Rate and Stride... Length in velocity changes 3 A two-by-three (sex-by-stride length) repeated measures design 4 A bar chart of the caloric cost means of SL-A, SL-B, and SL-C w1thout distinction between sexes l7 22 5 A bar chart of the caloric cost means of each...

  19. Modern Art and Modern Movement: Images of Dance in American Art, c. 1900-1950

    E-Print Network [OSTI]

    Stephens, JoLee Gillespie

    2011-04-12

    published books of their photographs 3 of Isadora Duncan (1926) and Martha Graham (1941), respectively. In the final years of the 1930s, Paul Meltsner created six oil paintings of Martha Grah am. Throughout the 1940s Franz Kline depicted Nijinsky...Illustrations 287 288 Fig. 1.1 Louis Kronberg, Preparing For the Dance, n.d., oil on canvas, 28 7/10 x 23 7/10”, William Doyle Galleries, New York. Fig. 1.2 Edgar Degas, The Ballet Class, c. 1878-1880, oil on canvas, 32 1/8 x 30 1...

  20. Duncanville, Texas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (UtilityInstrumentsAreafor Geothermal ResourcesEnergyDumont, NewDuncan

  1. Dundee, Michigan: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (UtilityInstrumentsAreafor Geothermal ResourcesEnergyDumont, NewDuncanMichigan:

  2. Hexagonal Ordering of Nanoparticles | Argonne National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-DoseOptions forHeavy-DutyHere�s What�sDuncan -Holl

  3. Hi-Res WIPP

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-DoseOptions forHeavy-DutyHere�s What�sDuncan -HollWaste

  4. Hi-Res WIPP onsite_offsite

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-DoseOptions forHeavy-DutyHere�s What�sDuncan

  5. Hidden Rotational Symmetries in Magnetic Domain Patterns

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-DoseOptions forHeavy-DutyHere�s What�sDuncanHidden

  6. Hidden Rotational Symmetries in Magnetic Domain Patterns

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-DoseOptions forHeavy-DutyHere�s What�sDuncanHiddenHidden

  7. Power counting and renormalization group invariance in the subtracted kernel method for the two-nucleon system

    E-Print Network [OSTI]

    Sérgio Szpigel; Varese S. Timóteo

    2012-07-26

    We apply the subtracted kernel method (SKM), a renormalization approach based on recursive multiple subtractions performed in the kernel of the scattering equation, to the chiral nucleon-nucleon (NN) interactions up to next-to-next-to-leading-order (NNLO). We evaluate the phase-shifts in the 1S0 channel at each order in Weinberg's power counting scheme and in a modified power counting scheme which yields a systematic power-law improvement. We also explicitly demonstrate that the SKM procedure is renormalization group invariant under the change of the subtraction scale through a non-relativistic Callan-Symanzik flow equation for the evolution of the renormalized NN interactions.

  8. The standard model and colliders

    SciTech Connect (OSTI)

    Hinchliffe, I.

    1987-03-01

    Some topics in the standard model of strong and electroweak interactions are discussed, as well as how these topics are relevant for the high energy colliders which will become operational in the next few years. The radiative corrections in the Glashow-Weinberg-Salam model are discussed, stressing how these corrections may be measured at LEP and the SLC. CP violation is discussed briefly, followed by a discussion of the Higgs boson and the searches which are relevant to hadron colliders are then discussed. Some of the problems which the standard model does not solve are discussed, and the energy ranges accessible to the new colliders are indicated. (LEW)

  9. From the Proton Synchroton to the Large Hadron Collider - 50 Years of Nobel Memories in High-Energy Physics

    ScienceCinema (OSTI)

    None

    2011-10-06

    The seminars will be held in the Main Auditorium with transmission to : Council Chamber, IT Auditorium, Prévessin BE Auditorium , Kjell Johnssen Auditorium in Building 30, Room 40-S2-A01, and via webcast. Confirmed Speakers include: Prof. Jack Steinberger, Dr. Guenther Plass, Prof. Emilio Picasso, Dr. Steve Myers, Prof. Carlo Rubbia, Prof. Burton Richter, Dr. Lyndon Evans, Prof. Rolf-Dieter Heuer, Prof. Leon Lederman, Prof. Jim Cronin, Prof. Sheldon Glashow, Prof. Jerome Friedman, Prof. Frank Wilczek, Prof. Martinus Veltman, Prof. Gerardus 't Hooft, Prof. David Gross, Prof. Samuel Ting, Prof. Steven Weinberg (via teleconference) --- Contact: Directorate.Office@cern.ch

  10. Short-range nuclear forces in singlet channels

    SciTech Connect (OSTI)

    Bingwei Long, Chiehjen Yang

    2012-08-01

    Continuing our effort to build a consistent power counting for chiral nuclear effective field theory, we discuss the subleading contact interactions, or counterterms, in the singlet channels of nucleon-nucleon scattering, with renormalization group invariance as the constraint. We argue that the rather large cutoff error of the leading amplitude requires O(Q) of the low-energy approximation to be non-vanishing, contrary to Weinberg's original power counting. This, together with the ultraviolet divergences of two pion exchanges in distorted-wave expansion, leads to enhancement of the 1S0 counterterms and results in a pionless theory-like power counting for the singlet channels.

  11. Football Shaped Extra Dimensions and the Absence of Self-Tuning

    E-Print Network [OSTI]

    Jaume Garriga; Massimo Porrati

    2004-06-28

    There have been some recent claims that brane-worlds of co-dimension two in a 6D bulk with compact extra dimensions may lead to self-tuning of the effective 4D cosmological constant. Here we show that if a phase transition occurs on a flat brane, so as to change its tension, then the brane will not remain flat. In other words, there is really no self-tuning in such models, which can in fact be understood in four-dimensional terms and are therefore subject to Weinberg's no-go theorem.

  12. Football Shaped Extra Dimensions and the Absence of Self-Tuning

    E-Print Network [OSTI]

    Garriga, J; Garriga, Jaume; Porrati, Massimo

    2004-01-01

    There have been some recent claims that brane-worlds of co-dimension two in a 6D bulk with compact extra dimensions may lead to self-tuning of the effective 4D cosmological constant. Here we show that if a phase transition occurs on a flat brane, so as to change its tension, then the brane will not remain flat. In other words, there is really no self-tuning in such models, which can in fact be understood in four-dimensional terms and are therefore subject to Weinberg's no-go theorem.

  13. Factorization of the dijet cross section in electron-positron annihilation with jet algorithms

    E-Print Network [OSTI]

    Junegone Chay; Chul Kim; Inchol Kim

    2015-08-07

    We analyze the effects of jet algorithms on each factorized part of the dijet cross sections in $e^+ e^-$ scattering using the soft-collinear effective theory. The jet function and the soft function with a cone-type jet algorithm and the Sterman-Weinberg jet algorithm are computed to next-to-leading order in $\\alpha_s$, and are shown to be infrared finite using the dimensional regularization. The integrated and unintegrated jet functions are presented, and compared with other types of jet functions.

  14. On the renormalization of nucleon-nucleon interaction by one rho-meson exchange

    SciTech Connect (OSTI)

    Oliveira, Luiz Paulo de

    2014-11-11

    The nature of the nucleon-nucleon interaction has always been a subject of intense discussion in the low-energy hadron physics literature. In the last decades, the research related to chiral perturbation theory developed by Gasser, Leutwyler and Weinberg have gained attention due to the advances in using chiral symmetry to describe nuclear interactions. In this work we discuss aspects of the renormalizability of the interaction between two nucleons by one ? and one ? mesons exchange. The results give us important hints on the required short-distance cancellations of the singular tensor potential due to pion exchange.

  15. Quantum dynamics of relativistic bosons through nonminimal vector square potentials

    E-Print Network [OSTI]

    de Oliveira, Luiz P

    2016-01-01

    The dynamics of relativistic scalar bosons through nonminimal vector square (well and barrier) potentials is studied in the Duffin-Kemmer-Petiau (DKP) formalism. We show that the problem can be mapped in effective Schrodinger equations for a component of the DKP spinor. An oscillatory transmission coefficient is found and there is total reflection. Additionally, the energy spectrum of bound states is obtained and reveals the Schiff-Snyder-Weinberg effect, for specific conditions the potential lodges bound states of particles and antiparticles. Comments about the vector bosons problem subject to square potentials are present.

  16. The first and second monotone integral principles for fundamental solutions of uniformly elliptic equations

    E-Print Network [OSTI]

    Xiao, Jie

    2009-01-01

    Two optimal monotone integral principles (equivalently for the Laplacian, two sharp iso-weighted-volume inequalities) are established through extending the first and second integral bounds of H. Weinberger for the Green functions (i.e., fundamental solutions) of uniformly elliptic equations in terms of the layer-cake formula, a one-dimensional monotone integral principle, and the isoperimetric and Jenson's inequalities with sharp constants. Surprisingly, a special setting of the first principle can be used to not only verify the low-dimensional P\\'olya conjecture for the principal eigenvalue of the Laplacian but also to characterize the geometry of the Nash inequality for a strong uniform elliptic equation.

  17. Energy Distribution of a Stationary Beam of Light

    E-Print Network [OSTI]

    Ragab M. Gad

    2003-07-03

    Aguirregabiria et al showed that Einstein, Landau and Lifshitz, Papapetrou, and Weinberg energy-momentum complexes coincide for all Kerr-Schild metric. Bringely used their general expression of the Kerr-Schild class and found energy and momentum densities for the Bonnor metric. We obtain these results without using Aguirregabiria et al results and verify that Bringley's results are correct. This also supports Aguirregabiria et al results as well as Cooperstock hypothesis. Further, we obtain the energy distribution of the space-time under consideration.

  18. Energy distribution in the dyadosphere of a charged black hole

    E-Print Network [OSTI]

    S. S. Xulu

    2003-04-22

    The event horizon of a charged black hole is, according to Ruffini\\cite{Ruffini} and Preparata \\emph{et al.}\\cite{PreparataEtAl}, surrounded by a special region called the \\emph{dyadosphere} where the electromagnetic field exceeds the Euler-Heisenberg critical value for electron-positron pair production. We obtain the energy distribution in the dyadosphere region for a Reissner-Nordstr\\"{o}m black hole. We find that the energy-momentum prescriptions of Einstein, Landau-Lifshitz, Papapetrou, and Weinberg give the same and acceptable energy distribution.

  19. Distribution of Energy-Momentum in a Schwarzschild-Quintessence Space-time Geometry

    E-Print Network [OSTI]

    Irina Radinschi; Theophanes Grammenos; Andromahi Spanou

    2012-04-07

    An analysis of the energy-momentum localization for a four-dimensional\\break Schwarzschild black hole surrounded by quintessence is presented in order to provide expressions for the distributions of energy and momentum. The calculations are performed by using the Landau-Lifshitz and Weinberg energy-momentum complexes. It is shown that all the momenta vanish, while the expression for the energy depends on the mass $M$ of the black hole, the state parameter $w_{q}$ and the normalization factor $c$. The special case of $w_{q}=-2/3$ is also studied, and two limiting cases are examined.

  20. Energy-momentum Prescriptions in General Spherically Symmetric Space-times

    E-Print Network [OSTI]

    Saeed Mirshekari; Amir M. Abbassi

    2014-11-29

    Einstein, Landau-Lifshitz, Papapetrou, Weinberg, and M{\\o}ller energy-momentum prescriptions in general spherically symmetric space-times are investigated. It is shown that for two special but not unusual classes of general spherically symmetric space-times several energy-momentum prescriptions in Schwarzschild Cartesian coordinates lead to some coincidences in energy distribution. It is also obtained that for a special class of spherically symmetric metrics M{\\o}ller and Einstein energy-momentum prescriptions give the same result for energy distribution if and only if it has a specific dependence on radial coordinate.

  1. 100 years of elementary particles [Beam Line, vol. 27, issue 1, Spring 1997

    SciTech Connect (OSTI)

    Pais, Abraham; Weinberg, Steven; Quigg, Chris; Riordan, Michael; Panofsky, Wolfgang K.H.; Trimble, Virginia

    1997-04-01

    This issue of Beam Line commemorates the 100th anniversary of the April 30, 1897 report of the discovery of the electron by J.J. Thomson and the ensuing discovery of other subatomic particles. In the first three articles, theorists Abraham Pais, Steven Weinberg, and Chris Quigg provide their perspectives on the discoveries of elementary particles as well as the implications and future directions resulting from these discoveries. In the following three articles, Michael Riordan, Wolfgang Panofsky, and Virginia Trimble apply our knowledge about elementary particles to high-energy research, electronics technology, and understanding the origin and evolution of our Universe.

  2. Electromagnetic mass difference on the lattice

    E-Print Network [OSTI]

    Yusuke Namekawa; Yoshio Kikukawa

    2005-09-24

    We calculate electromagnetic mass difference of mesons using a method proposed by Duncan {\\it et al}. The RG-improved gauge action and the non-compact Abelian gauge action are employed to generate configurations. Quark propagators in the range of $m_{PS}/m_{V}=0.76-0.51$ are obtained with the meanfield-improved clover quark action. Chiral and continuum extrapolations are performed and the results are compared with experiments. Finite size effects are also examined. Quark masses are extracted from the measured spectrum. Our preliminary values for light quark masses are $m_{u}^{\\bar{MS}}(\\mu =2 {GeV}) = 3.03(19)$ MeV, $m_{d}^{\\bar{MS}}(\\mu = 2 {GeV}) = 4.44(28)$ MeV, $m_{s}^{\\bar{MS}}(\\mu = 2 {GeV}) = 99.2(52)$ MeV.

  3. Geographic variation in the bobcat (Felis rufus) in the southcentral United States 

    E-Print Network [OSTI]

    Read, Jody A

    1981-01-01

    /F Duncan Male IV V III II I GRFMTEST SKULL LFNGTH 129. 94 + 3. 98 118. 45-237. 60 128. 71 + 5. 80 119. 50-135. 05 128. 48 + 4. 04 122. 95-133. 50 125. 05 + 11. 80 119. 15-130. 95 109. 10 f 5. 98 99. 20-123. 60 4. 30 5. 04 12. 18 3, 52 0. 0001.... 45-120. 90 3. 73 I 2 113. 00 + 8. 20 108. 90-117. 10 5. 13 I Female II III V I 2 114. 20 + 8. 80 109. 80-118. 60 5. 45 1. 12 2 111. 83 + 1. 36 111. 15-112. 50 0. 85 ns 2 111. 38 + 12. 66 105. 05-117. 70 8. 03 105. 21 + 6. 38 97. 10-112. 60 6...

  4. LANL Experience Rolling Zr-Clad LEU-10Mo Foils for AFIP-7

    SciTech Connect (OSTI)

    Hammon, Duncan L.; Clarke, Kester D.; Alexander, David J.; Kennedy, Patrick K.; Edwards, Randall L.; Duffield, Andrew N.; Dombrowski, David E.

    2015-05-29

    The cleaning, canning, rolling and final trimming of Low Enriched Uranium-10 wt. pct. Molybdenum (LEU-10Mo) foils for ATR (Advanced Test Reactor) fuel plates to be used in the AFIP-7 (ATR Full Size Plate In Center Flux Trap Position) experiments are summarized. Six Zr-clad foils were produced from two LEU-10Mo castings supplied to Los Alamos National Laboratory (LANL) by Y-12 National Security Complex. Details of cleaning and canning procedures are provided. Hot- and cold-rolling results are presented, including rolling schedules, images of foils in-process, metallography and local compositions of regions of interest, and details of final foil dimensions and process yield. This report was compiled from the slides for the presentation of the same name given by Duncan Hammon on May 12, 2011 at the AFIP-7 Lessons Learned meeting in Salt Lake City, UT, with Los Alamos National Laboratory document number LA-UR 11-02898.

  5. Fine-tuning with Brane-Localized Flux in 6D Supergravity

    E-Print Network [OSTI]

    Niedermann, Florian

    2015-01-01

    There are claims in the literature that the cosmological constant problem could be solved in a braneworld model with two large (micron-sized) supersymmetric extra dimensions. The mechanism relies on two basic ingredients: First, the cosmological constant only curves the compact bulk geometry into a rugby shape, while the 4D curvature stays flat. Second, a brane-localized flux term is introduced in order to circumvent Weinberg's fine-tuning argument, which otherwise enters here through a backdoor via the flux quantization condition. In this paper, we show that the latter mechanism does not work in the way it was designed: The only localized flux coupling that leads to a flat on-brane geometry is one which preserves the scale invariance of the bulk theory. Consequently, Weinberg's argument applies, making a fine-tuning necessary again. The only remaining window of opportunity lies within scale invariance breaking brane couplings, for which the tuning could be avoided. Whether the corresponding nonzero 4D curvat...

  6. Violations of the ceiling principle: Exact conditions and statistical evidence

    SciTech Connect (OSTI)

    Slimowitz, J.R. ); Cohen, J.E. )

    1993-08-01

    The National Research Council recommended the use of the ceiling principle in forensic applications of DNA testing on the grounds that the ceiling principle was believed to be [open quotes]conservative,[close quotes] giving estimates greater than or equal to the actual genotype frequencies in the appropriate reference population. The authors show here that the ceiling principle can fail to be conservative in a population with two subpopulations and two loci, each with two alleles at Hardy-Weinberg equilibrium, if there is some linkage disequilibrium between loci. They also show that the ceiling principle can fail in a population with two subpopulations and a single locus with two alleles if Hardy-Weinberg equilibrium does not hold. They given explicit analytical formulas to describe when the ceiling principle fails. By showing that the ceiling principle is not always mathematically reliable, this analysis gives users of the ceiling principle the responsibility of demonstrating that it is conservative for the particular data with which it is used. Reanalysis of VNTR data bases of the FBI provides compelling evidence of two-locus associations within three major ethnic groups (Caucasian, black, and Hispanic) in the United States, even though the loci tested are located on different chromosomes. Before the ceiling principle is implemented, more research should be done to determine whether it may be violated in practice. 19 refs., 5 tabs.

  7. AdS Field Theory from Conformal Field Theory

    E-Print Network [OSTI]

    A. Liam Fitzpatrick; Jared Kaplan

    2012-08-01

    We provide necessary and sufficient conditions for a Conformal Field Theory to have a description in terms of a perturbative Effective Field Theory in AdS. The first two conditions are well-known: the existence of a perturbative `1/N' expansion and an approximate Fock space of states generated by a finite number of low-dimension operators. We add a third condition, that the Mellin amplitudes of the CFT correlators must be well-approximated by functions that are bounded by a polynomial at infinity in Mellin space, or in other words, that the Mellin amplitudes have an effective theory-type expansion. We explain the relationship between our conditions and unitarity, and provide an analogy with scattering amplitudes that becomes exact in the flat space limit of AdS. The analysis also yields a simple connection between conformal blocks and AdS diagrams, providing a new calculational tool very much in the spirit of the S-Matrix program. We also begin to explore the potential pathologies associated with higher spin fields in AdS by generalizing Weinberg's soft theorems to AdS/CFT. The AdS analog of Weinberg's argument constrains the interactions of conserved currents in CFTs, but there are potential loopholes that are unavailable to theories of massless higher spin particles in flat spacetime.

  8. Energy distribution of a regular black hole solution in Einstein-nonlinear electrodynamics

    E-Print Network [OSTI]

    I. Radinschi; F. Rahaman; Th. Grammenos; A. Spanou; Sayeedul Islam

    2014-07-16

    In this work a study about the energy-momentum of a new four-dimensional spherically symmetric, static and charged, regular black hole solution developed in the context of general relativity coupled to nonlinear electrodynamics is presented. Asymptotically, this new black hole solution behaves as the Reissner-Nordstr\\"om solution only for the particular value {\\mu}=4, where {\\mu} is a positive integer parameter appearing in the mass function of the solution. The calculations are performed by use of the Einstein, Landau-Lifshitz, Weinberg and M{\\o}ller energy-momentum complexes. In all the aforesaid prescriptions, the expressions for the energy of the gravitating system considered depend on the mass M of the black hole, its charge q, a positive integer {\\alpha} and the radial coordinate r. In all these pseudotensorial prescriptions the momenta are found to vanish, while the Landau-Lifshitz and Weinberg prescriptions give the same result for the energy distribution. In addition, the limiting behavior of the energy for the cases r tends toward infinity, r=0 and q=0 is studied. The special case {\\mu}=4 and {\\alpha}=3 is also examined. We conclude that the Einstein and M{\\o}ller energy-momentum complexes can be considered as the most reliable tools for the study of the energy-momentum localization of a gravitating system.

  9. An ultra-weak sector, the strong CP problem and the pseudo-Goldstone dilaton

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Allison, Kyle; Hill, Christopher T.; Ross, Graham G.

    2015-02-01

    In the context of a Coleman–Weinberg mechanism for the Higgs boson mass, we address the strong CP problem. We show that a DFSZ-like invisible axion model with a gauge-singlet complex scalar field S, whose couplings to the Standard Model are naturally ultra-weak, can solve the strong CP problem and simultaneously generate acceptable electroweak symmetry breaking. The ultra-weak couplings of the singlet S are associated with underlying approximate shift symmetries that act as custodial symmetries and maintain technical naturalness. The model also contains a very light pseudo-Goldstone dilaton that is consistent with cosmological Polonyi bounds, and the axion can be themore »dark matter of the universe. We further outline how a SUSY version of this model, which may be required in the context of Grand Unification, can avoid introducing a hierarchy problem.« less

  10. Energy in the Einstein-Aether Theory

    E-Print Network [OSTI]

    Christopher Eling

    2009-12-06

    We investigate the energy of a theory with a unit vector field (the "aether") coupled to gravity. Both the Weinberg and Einstein type energy-momentum pseudotensors are employed. In the linearized theory we find expressions for the energy density of the 5 wave modes. The requirement that the modes have positive energy is then used to constrain the theory. In the fully non-linear theory we compute the total energy of an asymptotically flat spacetime. The resulting energy expression is modified by the presence of the aether due to the non-zero value of the unit vector at infinity and its 1/r falloff. The question of non-linear energy positivity is also discussed, but not resolved.

  11. Minisuperspace models as infrared contributions

    E-Print Network [OSTI]

    Bojowald, Martin

    2015-01-01

    A direct correspondence of quantum mechanics as a minisuperspace model for a self-interacting scalar quantum-field theory is established by computing, in several models, the infrared contributions to 1-loop effective potentials of Coleman--Weinberg type. A minisuperspace approximation rather than truncation is thereby obtained. By this approximation, the spatial averaging scale of minisuperspace models is identified with an infrared scale (but not a regulator or cut-off) delimiting the modes included in the minisuperspace model. Some versions of the models studied here have discrete space or modifications of the Hamiltonian expected from proposals of loop quantum gravity. They shed light on the question of how minisuperspace models of quantum cosmology can capture features of full quantum gravity. While it is shown that modifications of the Hamiltonian can well be described by minisuperspace truncations, some related phenomena such as signature change, confirmed and clarified here for modified scalar field th...

  12. Preliminary results of nu/sub e/e/sup -/ scattering at LAMPF

    SciTech Connect (OSTI)

    Allen, R.C.; Bharadwaj, V.; Brooks, G.A.; Chen, H.H.; Doe, P.J.; Hausammann, R.; Mahler, H.J.; Rushton, A.M.; Wang, K.C.; Bowles, T.J.

    1984-08-01

    We present preliminary results of a neutrino experiment in progress at LAMPF by an Irvine-Los Alamos-Maryland collaboration. We have observed a signal consistent with nu/sub e/e/sup -/ elastic scattering, with a 15-ton sandwich detector. The number of these nu/sub e/e/sup -/ candidates agrees with that predicted by the Weinberg-Salam electroweak theory. The corresponding sin/sup 2/theta/sub w/ and total cross section are reported. This study shows that the interference of weak charged-current and weak neutral-current in nu/sub e/e/sup -/ scattering is not constructive. We also searched for anomalous appearance of anti nu/sub e/ from the LAMPF beam stop. An upper limit for the multiplicative lepton number conservation law, and limits for anti nu/sub ..mu../ ..-->.. anti nu/sub e/ oscillation are given. 15 references.

  13. Superconnections and the Higgs Field

    E-Print Network [OSTI]

    G. Roepstorff

    1998-04-09

    Within the mathematical framework of Quillen, one interprets the Higgs field as part of the superconnection on a superbundle. We propose to take as superbundle the exterior algebra obtained from a Hermitian bundle with structure group U(n). Spontaneous symmetry breaking appears as a consequence of a non-vanishing scalar curvature. The U(1) Higgs model reformulates the Ginzburg-Landau theory, while the U(2) model relates to the electroweak theory with the relation $g^2=3g4^2$ for the gauge coupling constants, the formula $\\sin^2\\theta=1/4$ for the Weinberg angle, and the ratio $ m_W^2 : m_Z^2 : m_H^2 = 3 : 4 : 12 $ for the masses (squared) of the W, Z, and Higgs boson (at tree level).

  14. Dark matter and neutrino masses from a scale-invariant multi-Higgs portal

    E-Print Network [OSTI]

    Alexandros Karam; Kyriakos Tamvakis

    2015-09-05

    We consider a classically scale invariant version of the Standard Model, extended by an extra dark $SU(2)_X$ gauge group. Apart from the dark gauge bosons and a dark scalar doublet which is coupled to the Standard Model Higgs through a portal coupling, we incorporate right-handed neutrinos and an additional real singlet scalar field. After symmetry breaking \\`a la Coleman-Weinberg, we examine the multi-Higgs sector and impose theoretical and experimental constraints. In addition, by computing the dark matter relic abundance and the spin-independent scattering cross section off a nucleon we determine the viable dark matter mass range in accordance with present limits. The model can be tested in the near future by collider experiments and direct detection searches such as XENON 1T.

  15. Ultra-weak sector, Higgs boson mass, and the dilaton

    SciTech Connect (OSTI)

    Allison, Kyle; Hill, Christopher T.; Ross, Graham G.

    2014-09-26

    The Higgs boson mass may arise from a portal coupling to a singlet field $\\sigma$ which has a very large VEV $f \\gg m_\\text{Higgs}$. This requires a sector of "ultra-weak" couplings $\\zeta_i$, where $\\zeta_i \\lesssim m_\\text{Higgs}^2 / f^2$. Ultra-weak couplings are technically naturally small due to a custodial shift symmetry of $\\sigma$ in the $\\zeta_i \\rightarrow 0$ limit. The singlet field $\\sigma$ has properties similar to a pseudo-dilaton. We engineer explicit breaking of scale invariance in the ultra-weak sector via a Coleman-Weinberg potential, which requires hierarchies amongst the ultra-weak couplings.

  16. Dark photons as fractional cosmic neutrino masquerader

    SciTech Connect (OSTI)

    Ng, Kin-Wang; Tu, Huitzu; Yuan, Tzu-Chiang E-mail: huitzu@phys.sinica.edu.tw

    2014-09-01

    Recently, Weinberg proposed a Higgs portal model with a spontaneously broken global U(1) symmetry in which Goldstone bosons may be masquerading as fractional cosmic neutrinos. We extend the model by gauging the U(1) symmetry. This gives rise to the so-called dark photon and dark Higgs. The dark photons can constitute about 0.912 (0.167) to the effective number of light neutrino species if they decouple from the thermal bath before the pions become non-relativistic and after (before) the QCD transition. Restriction on the parameter space of the portal coupling and the dark Higgs mass is obtained from the freeze-out condition of the dark photons. Combining with the collider data constraints on the invisible width of the standard model Higgs requires the dark Higgs mass to be less than a few GeV.

  17. The Lifetime of Grand Design

    E-Print Network [OSTI]

    M. R. Merrifield; R. J. Rand; S. E. Meidt

    2005-11-02

    The lifetime of the structure in grand design spiral galaxies is observationally ill-determined, but is essentially set by how accurately the pattern's rotation can be characterized by a single angular pattern speed. This paper derives a generalized version of the Tremaine-Weinberg method for observationally determining pattern speeds, in which the pattern speed is allowed to vary arbitrarily with radius. The departures of the derived pattern speed from a constant then provides a simple metric of the lifetime of the spiral structure. Application of this method to CO observations of NGC 1068 reveal that the pattern speed of the spiral structure in this galaxy varies rapidly with radius, and that the lifetime of the spiral structure is correspondingly very short. If this result turns out to be common in grand-design spiral galaxies, then these features will have to be viewed as highly transient phenomena.

  18. Few-nucleon systems with state-of-the-art chiral nucleon-nucleon forces

    E-Print Network [OSTI]

    S. Binder; A. Calci; E. Epelbaum; R. J. Furnstahl; J. Golak; K. Hebeler; H. Kamada; H. Krebs; J. Langhammer; S. Liebig; P. Maris; U. -G. Meißner; D. Minossi; A. Nogga; H. Potter; R. Roth; R. Skibinski; K. Topolnicki; J. P. Vary; H. Witala

    2015-05-27

    We apply improved nucleon-nucleon potentials up to fifth order in chiral effective field theory, along with a new analysis of the theoretical truncation errors, to study nucleon-deuteron (Nd) scattering and selected low-energy observables in 3H, 4He, and 6Li. Calculations beyond second order differ from experiment well outside the range of quantified uncertainties, providing truly unambiguous evidence for missing three-nucleon forces within the employed framework. The sizes of the required three-nucleon force contributions agree well with expectations based on Weinberg's power counting. We identify the energy range in elastic Nd scattering best suited to study three-nucleon force effects and estimate the achievable accuracy of theoretical predictions for various observables.

  19. Ultra-weak sector, Higgs boson mass, and the dilaton

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Allison, Kyle; Hill, Christopher T.; Ross, Graham G.

    2014-11-01

    The Higgs boson mass may arise from a portal coupling to a singlet field $\\sigma$ which has a very large VEV $f \\gg m_\\text{Higgs}$. This requires a sector of "ultra-weak" couplings $\\zeta_i$, where $\\zeta_i \\lesssim m_\\text{Higgs}^2 / f^2$. Ultra-weak couplings are technically naturally small due to a custodial shift symmetry of $\\sigma$ in the $\\zeta_i \\rightarrow 0$ limit. The singlet field $\\sigma$ has properties similar to a pseudo-dilaton. We engineer explicit breaking of scale invariance in the ultra-weak sector via a Coleman-Weinberg potential, which requires hierarchies amongst the ultra-weak couplings.

  20. Dark matter and neutrino masses from a scale-invariant multi-Higgs portal

    E-Print Network [OSTI]

    Karam, Alexandros

    2015-01-01

    We consider a classically scale invariant version of the Standard Model, extended by an extra dark $SU(2)_X$ gauge group. Apart from the dark gauge bosons and a dark scalar doublet which is coupled to the Standard Model Higgs through a portal coupling, we incorporate right-handed neutrinos and an additional real singlet scalar field. After symmetry breaking \\`{a} la Coleman-Weinberg, we examine the multi-Higgs sector and impose theoretical and experimental constraints. In addition, by computing the dark matter relic abundance and the spin-independent scattering cross section off a nucleon we determine the viable dark matter mass range in accordance with present limits. The model can be tested in the near future by collider experiments and direct detection searches such as XENON 1T.

  1. The patterns speeds of NGC 6946

    E-Print Network [OSTI]

    Toonen, Silvia; Falcón-Barroso, Jesús; Beckman, John; de Zeeuw, Tim

    2007-01-01

    We study the kinematics of the barred spiral galaxy NGC 6946 by investigating the velocity field from H-alpha Fabry-Perot observations, determined the pattern speed of the bar by using the Tremaine-Weinberg method, and find a main pattern speed of 21.7 (+4.0,-0.8) km/s/kpc. Our data clearly suggest the presence of an additional pattern with a pattern speed more than twice that of the large pattern in this galaxy. We use the epicycle approximation to deduce the location of the resonance radii and subsequently determine the pattern speed between the radii, and find that inside the Inner Inner Lindblad Resonance radius, a bar-like system has evolved.

  2. The pattern speeds of NGC 6946

    E-Print Network [OSTI]

    Silvia Toonen; Kambiz Fathi; Jesús Falcón-Barroso; John Beckman; Tim de Zeeuw

    2008-01-18

    We study the kinematics of the barred spiral galaxy NGC 6946 by investigating the velocity field from H-alpha Fabry-Perot observations, determined the pattern speed of the bar by using the Tremaine-Weinberg method, and find a main pattern speed of 21.7 (+4.0,-0.8) km/s/kpc. Our data clearly suggest the presence of an additional pattern with a pattern speed more than twice that of the large pattern in this galaxy. We use the epicycle approximation to deduce the location of the resonance radii and subsequently determine the pattern speed between the radii, and find that inside the inner Inner Lindblad Resonance radius, a bar-like system has evolved.

  3. Equation of State of an Interacting Pion Gas with Realistic $?$--$?$ Interactions

    E-Print Network [OSTI]

    R. Rapp; J. Wambach

    1995-10-27

    Within the finite-temperature Greens-function formalism we study the equation of state of a hot interacting pion gas at zero chemical potential. Employing realistic $\\pi\\pi$ meson-exchange interactions we selfconsistently calculate the in-medium single-pion selfenergy and the $\\pi\\pi$ scattering amplitude in the quasiparticle approximation. These quantities are then used to evaluate the thermodynamic potential, $\\Omega_\\pi$(T), from which the state variables: pressure-, entropy- and energy-density can be derived. In contrast to earlier calculations based on the low-energy Weinberg Lagrangian we find an overall increase as compared to the free-gas results. We also consider the possibility of a dropping $\\rho$-meson mass as suggested by the 'Brown-Rho Scaling' law.

  4. Relic High Frequency Gravitational waves from the Big Bang, and How to Detect Them

    E-Print Network [OSTI]

    A. W. Beckwith

    2009-01-14

    We show conditions for HFGW detection, employing an entropy concept written up by Jack Ng, and Steinhard's proceedure for reconstructing tensorial representations for relic HFGW from the onset of the big bang. The issue of the reality of gravitons as a measurable physical object which was raised by Rothman in 2006 is indirectly answered via a proceedure obtained from Weinberg's 1972 book on gravitation, and all the methodologies so obtained are referenced with respect to engineering specifications of the Li-Baker HFGW detector. In addition, the document also refers to entanglement entropy, and its possible aid in refining measurement predictions. Finally, commentary about HFGW and relic neutrino physics data sets is included, with regards to inflationary model candidates

  5. Symplectic gauge fields and dark matter

    E-Print Network [OSTI]

    Asorey, J; Garcia-Alvarez, D

    2015-01-01

    The dynamics of symplectic gauge fields provides a consistent framework for fundamental interactions based on spin three gauge fields. One remarkable property is that symplectic gauge fields only have minimal couplings with gravitational fields and not with any other field of the Standard Model. Interactions with ordinary matter and radiation can only arise from radiative corrections. In spite of the gauge nature of symplectic fields they acquire a mass by the Coleman-Weinberg mechanism which generates Higgs-like mass terms where the gravitational field is playing the role of a Higgs field. Massive symplectic gauge fields weakly interacting with ordinary matter are natural candidates for the dark matter component of the Universe.

  6. Symplectic gauge fields and dark matter

    E-Print Network [OSTI]

    J. Asorey; M. Asorey; D. Garcia-Alvarez

    2015-11-02

    The dynamics of symplectic gauge fields provides a consistent framework for fundamental interactions based on spin three gauge fields. One remarkable property is that symplectic gauge fields only have minimal couplings with gravitational fields and not with any other field of the Standard Model. Interactions with ordinary matter and radiation can only arise from radiative corrections. In spite of the gauge nature of symplectic fields they acquire a mass by the Coleman-Weinberg mechanism which generates Higgs-like mass terms where the gravitational field is playing the role of a Higgs field. Massive symplectic gauge fields weakly interacting with ordinary matter are natural candidates for the dark matter component of the Universe.

  7. Wave functions of composite hadron states and relationship to couplings of scattering amplitudes for general partial waves

    E-Print Network [OSTI]

    F. Aceti; E. Oset

    2012-05-29

    In this paper we present the connection between scattering amplitudes in momentum space and wave functions in coordinate space, generalizing previous work done for s-waves to any partial wave. The relationship to the wave function of the residues of the scattering amplitudes at the pole of bound states or resonances is investigated in detail. A sum rule obtained for the couplings provides a generalization to coupled channels, any partial wave and bound or resonance states, of Weinberg's compositeness condition, which was only valid for weakly bound states in one channel and s-wave. An example, requiring only experimental data, is shown for the $\\rho$ meson indicating that it is not a composite particle of $\\pi \\pi$ but something else.

  8. Neutrino Sources and Properties

    E-Print Network [OSTI]

    Francesco Vissani

    2015-05-19

    In this lecture, prepared for PhD students, basic considerations on neutrino interactions, properties and sites of production are overviewed. The detailed content is as follows: Sect. 1, Weak interactions and neutrinos: Fermi coupling; definition of neutrinos; global numbers. Sect. 2, A list of neutrino sources: Explanatory note and examples (solar pp- and supernova-neutrinos). Sect. 3, Neutrinos oscillations: Basic formalism (Pontecorvo); matter effect (Mikheev, Smirnov, Wolfenstein); status of neutrino masses and mixings. Sect. 4, Modifying the standard model to include neutrinos masses: The fermions of the standard model; one additional operator in the standard model (Weinberg); implications. One summary table and several exercises offer the students occasions to check, consolidate and extend their understanding; the brief reference list includes historical and review papers and some entry points to active research in neutrino physics.

  9. The effective gravitational decoupling between dark matter and the CMB

    SciTech Connect (OSTI)

    Voruz, Luc; Lesgourgues, Julien; Tram, Thomas, E-mail: luc.voruz@gmail.com, E-mail: Julien.Lesgourgues@cern.ch, E-mail: thomas.tram@epfl.ch [Institut de Théorie des Phénomènes Physiques, École Polytechnique Fédérale de Lausanne, CH-1015, Lausanne (Switzerland)

    2014-03-01

    e present a detailed and self-contained analytical derivation of the evolution of sub-horizon cosmological perturbations before decoupling, based on previous work by S. Weinberg. These solutions are valid in the minimal ?CDM scenario, to first order in perturbation theory, in the tight-coupling limit and neglecting neutrino shear stress. We compare them to exact numerical solutions computed by a Boltzmann code, and we find the two to be in very good agreement. The analytic solutions show explicitly that CDM and the baryon-photon fluid effectively behave as separate self-gravitating fluids until the epoch of baryon drag. This in turn leads to the surprising conclusion that the CMB is much less sensitive to the clustering properties of minimally coupled Dark Matter models than what would be naively expected.

  10. An Expression for the Granular Elastic Energy

    E-Print Network [OSTI]

    Yimin Jiang; Hepeng Zheng; Zheng Peng; Liping Fu; Shixiong Song; Qicheng Sun; Michael Mayer; Mario Liu

    2012-06-13

    Granular Solid Hydrodynamics (GSH) is a broad-ranged continual mechanical description of granular media capable of accounting for static stress distributions, yield phenomena, propagation and damping of elastic waves, the critical state, shear band, and fast dense flow. An important input of GSH is an expression for the elastic energy needed to deform the grains. The original expression, though useful and simple, has some draw-backs. Therefore, a slightly more complicated expression is proposed here that eliminates three of them: (1) The maximal angle at which an inclined layer of grains remains stable is increased from $26^\\circ$ to the more realistic value of $30^\\circ$. (2)Depending on direction and polarization, transverse elastic waves are known to propagate at slightly different velocities. The old expression neglects these differences, the new one successfully reproduces them. (3) Most importantly, the old expression contains only the Drucker-Prager yield surface. The new one contains in addition those named after Coulomb, Lade-Duncan and Matsuoka-Nakai -- realizing each, and interpolating between them, by shifting a single scalar parameter.

  11. Improved HEPA Filter Technology for Flexible and Rigid Containment Barriers

    SciTech Connect (OSTI)

    P. A. Pinson

    1998-07-01

    Safety and reliability in glovebox operations can be significantly improved and waste packaging efficiencies can be increased by inserting flexible, lightweight, high capacity HEPA filters into the walls of plastic sheet barriers. This HEPA filter/barrier technology can be adapted to a wide variety of applications: disposable waste bags, protective environmental barriers for electronic equipment, single or multiple use glovebag assemblies, flexible glovebox wall elements, and room partitions. These reliable and inexpensive filtered barriers have many uses in fields such as radioactive waste processing, HVAC filter changeout, vapor or grit blasting, asbestos cleanup, pharmaceutical, medical, biological, and electronic equipment containment. The applications can result in significant cost savings, improved operational reliability and safety, and total waste volume reduction. This technology was developed at the Argonne National Laboratory-West (ANL-W) in 1993 and has been used at ANL-W since then at the TRU Waste Characterization Chamber Gloveboxes. Another 1998 AGS Conference paper titled "TRU Waste Characterization Gloveboxes", presented by Mr. David Duncan of ANL-W, describes these boxes.

  12. New Mixing Angles in the Left-Right Symmetric Model

    E-Print Network [OSTI]

    Kokado, Akira

    2015-01-01

    The left-right symmetric model is characterized by three mixing angles $\\theta _{12}, \\theta_{23}, \\theta_{13}$ between three gauge fields $B_\\mu , W^3_{L\\mu }, W^3_{R\\mu }$, which produce mass eigenstates $A_{\\mu }, Z_{\\mu }, Z'_{\\mu }$. The mass matrix can be diagonal if $\\tan{\\theta _{23}}=-\\sin{\\theta _{12}}\\sin{\\theta_{13}}/\\cos{\\theta_{12}} + O(\\delta )$ , where $\\delta $ is an infinitesimally small parameter associated with the spontaneously broken left-right symmetry. Taking the limit $\\delta \\to 0$, then introducing new variables $s'=\\sin{\\theta _{12}}\\cos{\\theta _{13}}$ and $c'=\\cos{\\theta _{12}}/\\cos{\\theta _{23}}$ with $s'^2 + c'^2 =1$, we show that all gauge boson masses can be expressed in terms of $s', c'$, namely, $M_W =$ 37.3 $/s'$ [Gev/$c^2$] and $M_Z/M_W=1/c'$. Coupling strengths between the proton and the $Z$ boson as well as those of neutrinos and $Z$ can be shown to be expressed by $s' , c'$. All results are completely the same as those of the Weinberg-Salam theory with $SU(2)_{L}\\times ...

  13. Energy or Mass and Interaction

    E-Print Network [OSTI]

    Gustavo R Gonzalez-Martin

    2010-07-19

    A review. Problems: 1-Many empirical parameters and large dimension number; 2-Gravitation and Electrodynamics are challenged by dark matter and energy. Energy and nonlinear electrodynamics are fundamental in a unified nonlinear interaction. Nuclear energy appears as nonlinear SU(2) magnetic energy. Gravitation and electromagnetism are unified giving Einstein's equation and a geometric energy momentum tensor. A solution energy in the newtonian limit gives the gravitational constant G. Outside of this limit G is variable. May be interpreted as dark matter or energy. In vacuum, known gravitational solutions are obtained. Electromagnetism is an SU(2) subgroup. A U(1) limit gives Maxwell's equations. Geometric fields determine a generalized Dirac equation and are the germ of quantum physics. Planck's h and of Einstein's c are given by the potential and the metric. Excitations have quanta of charge, flux and spin determining the FQHE. There are only three stable 1/2 spin fermions. Mass is a form of energy. The rest energies of the fermions give the proton/electron mass ratio. Potential excitations have energies equal to the weak boson masses allowing a geometric interpretation of Weinberg's angle. SU(2) gives the anomalous magnetic moments of proton, electron, neutron and generates nuclear range attractive potentials strong enough to produce the binding energies of the deuteron and other nuclides. Lepton and meson masses are due to topological excitations. The geometric mass spectrum is satisfactory. The proton has a triple structure. The alpha constant is a geometric number.

  14. Bosonic seesaw mechanism in a classically conformal extension of the Standard Model

    E-Print Network [OSTI]

    Naoyuki Haba; Hiroyuki Ishida; Nobuchika Okada; Yuya Yamaguchi

    2015-08-27

    We suggest the so-called bosonic seesaw mechanism in the context of a classically conformal $U(1)_{B-L}$ extension of the Standard Model with two Higgs doublet fields. The $U(1)_{B-L}$ symmetry is radiatively broken via the Coleman-Weinberg mechanism, which also generates the mass terms for the two Higgs doublets through quartic Higgs couplings. Their masses are all positive but, nevertheless, the electroweak symmetry breaking is realized by the bosonic seesaw mechanism. Analyzing the renormalization group evolutions for all model couplings, we find that a large hierarchy among the quartic Higgs couplings, which is crucial for the bosonic seesaw mechanism to work, is dramatically reduced toward high energies. Therefore, the bosonic seesaw is naturally realized with only a mild hierarchy, if some fundamental theory, which provides the origin of the classically conformal invariance, completes our model at some high energy, for example, the Planck scale. We identify the regions of model parameters which satisfy the perturbativity of the running couplings and the electroweak vacuum stability as well as the naturalness of the electroweak scale.

  15. The status of the Lambda term in quantum geometrodynamics in extended phase space

    E-Print Network [OSTI]

    T. P. Shestakova

    2000-10-05

    S. Weinberg pointed out a way to introduce a cosmological term by modifying the theory of gravity. This modification would be justified if the Einstein equations with the cosmological term could be obtained in the classical limit of some physically satisfied quantum theory of gravity. We propose to consider quantum geometrodynamics in extended phase space as a candidate for such a theory. Quantum geometrodynamics in extended phase space aims at giving a selfconsistent description of the integrated system ``the physical object (the Universe) + observation means'', observation means being represented by a reference frame. The Lambda term appears in classical equations under certain gauge conditions and characterizes the state of gravitational vacuum related to a chosen reference frame. The eigenvalue spectrum of Lambda depends on a concrete cosmological model and can be found by solving the Schrodinger equation for a wave function of the Universe. The proposed version of quantum geometrodynamics enables one to make predictions concerning probable values of the Lambda term at various stages of cosmological evolution.

  16. Goldstone Inflation

    E-Print Network [OSTI]

    Djuna Croon; Veronica Sanz; Jack Setford

    2015-09-11

    Identifying the inflaton with a pseudo-Goldstone boson explains the flatness of its potential. Successful Goldstone Inflation should also be robust against UV corrections, such as from quantum gravity: in the language of the effective field theory this implies that all scales are sub-Planckian. In this paper we present scenarios which realise both requirements by examining the structure of Goldstone potentials arising from Coleman-Weinberg contributions. We focus on single-field models, for which we notice that both bosonic and fermionic contributions are required and that spinorial fermion representations can generate the right potential shape. We then evaluate the constraints on non-Gaussianity from higher-derivative interactions, finding that axiomatic constraints on Goldstone boson scattering prevail over the current CMB measurements. The fit to CMB data can be connected to the UV completions for Goldstone Inflation, finding relations in the spectrum of new resonances. Finally, we show how hybrid inflation can be realised in the same context, where both the inflaton and the waterfall fields share a common origin as Goldstones.

  17. Dark matter production from Goldstone boson interactions and implications for direct searches and dark radiation

    SciTech Connect (OSTI)

    Garcia-Cely, Camilo; Ibarra, Alejandro; Molinaro, Emiliano E-mail: alejandro.ibarra@ph.tum.de

    2013-11-01

    The stability of the dark matter particle could be attributed to the remnant Z{sub 2} symmetry that arises from the spontaneous breaking of a global U(1) symmetry. This plausible scenario contains a Goldstone boson which, as recently shown by Weinberg, is a strong candidate for dark radiation. We show in this paper that this Goldstone boson, together with the CP-even scalar associated to the spontaneous breaking of the global U(1) symmetry, plays a central role in the dark matter production. Besides, the mixing of the CP-even scalar with the Standard Model Higgs boson leads to novel Higgs decay channels and to interactions with nucleons, thus opening the possibility of probing this scenario at the LHC and in direct dark matter search experiments. We carefully analyze the latter possibility and we show that there are good prospects to observe a signal at the future experiments LUX and XENON1T provided the dark matter particle was produced thermally and has a mass larger than ? 25 GeV.

  18. The role of gauge symmetry in spintronics

    SciTech Connect (OSTI)

    Sobreiro, R.F.

    2011-12-15

    In this work we employ a field theoretical approach to explain the nature of the non-conserved spin current in spintronics. In particular, we consider the usual U(1) gauge theory for the electromagnetism at classical level in order to obtain the broken continuity equation involving the spin current and spin-transfer torque. Inspired by the recent work of A. Vernes, B. L. Gyorffy and P. Weinberger where they obtain such an equation in terms of relativistic quantum mechanics, we formalize their result in terms of the well known currents of field theory such as the Bargmann-Wigner current and the chiral current. Thus, an interpretation of spintronics is provided in terms of Noether currents (conserved or not) and symmetries of the electromagnetism. In fact, the main result of the present work is that the non-conservation of the spin current is associated with the gauge invariance of physical observables where the breaking term is proportional to the chiral current. Moreover, we generalize their result by including the electromagnetic field as a dynamical field instead of an external one.

  19. The role of gauge symmetry in spintronics

    E-Print Network [OSTI]

    Sobreiro, R F

    2011-01-01

    In this work we employ a field theoretical approach to explain the nature of the non-conserved spin current in spintronics. In particular, we consider the usual U(1) gauge theory for the electromagnetism at classical level in order to obtain the broken continuity equation involving the spin current and spin-transfer torque. Inspired in the recent work of A. Vernes, B. L. Gyorffy and P. Weinberger where they obtain such equation in terms of relativistic quantum mechanics, we formalize their result in terms of the well known currents of field theory such as the Bargmann-Wigner current and the chiral current. Thus, an interpretation of spintronics is provided in terms of Noether currents (conserved or not) and symmetries of the electromagnetism. In fact, the main result of the present work is that the non-conservation of the spin current is associated to the gauge invariance of physical observables where the breaking term is proportional to the chiral current. Moreover, we generalize their result by including th...

  20. The role of gauge symmetry in spintronics

    E-Print Network [OSTI]

    R. F. Sobreiro; V. J. Vasquez Otoya

    2011-08-31

    In this work we employ a field theoretical approach to explain the nature of the non-conserved spin current in spintronics. In particular, we consider the usual U(1) gauge theory for the electromagnetism at classical level in order to obtain the broken continuity equation involving the spin current and spin-transfer torque. Inspired in the recent work of A. Vernes, B. L. Gyorffy and P. Weinberger where they obtain such equation in terms of relativistic quantum mechanics, we formalize their result in terms of the well known currents of field theory such as the Bargmann-Wigner current and the chiral current. Thus, an interpretation of spintronics is provided in terms of Noether currents (conserved or not) and symmetries of the electromagnetism. In fact, the main result of the present work is that the non-conservation of the spin current is associated to the gauge invariance of physical observables where the breaking term is proportional to the chiral current. Moreover, we generalize their result by including the electromagnetic field as a dynamical field instead of an external one.

  1. Higgs Boson Mass predicted by the Four Color Theorem

    E-Print Network [OSTI]

    Ashay Dharwadker; Vladimir Khachatryan

    2009-12-28

    We show that the mathematical proof of the four color theorem yields a perfect interpretation of the Standard Model of particle physics. The steps of the proof enable us to construct the t-Riemann surface and particle frame which forms the gauge. We specify well-defined rules to match the Standard Model in a one-to-one correspondence with the topological and algebraic structure of the particle frame. This correspondence is exact - it only allows the particles and force fields to have the observable properties of the Standard Model, giving us a Grand Unified Theory. In this paper, we concentrate on explicitly specifying the quarks, gauge vector bosons, the Standard Model scalar Higgs $H^{0}$ boson and the weak force field. Using all the specifications of our mathematical model, we show how to calculate the values of the Weinberg and Cabibbo angles on the particle frame. Finally, we present our prediction of the Higgs $H^{0}$ boson mass $M_{H^{0}} = 125.992 \\simeq 126 GeV$, as a direct consequence of the proof of the four color theorem.

  2. Identification of repeat sequence heterogeneity at the polymorphic short tandem repeat locus HUMTH01[AATG][sub n] and reassignment of alleles in population analysis by using a locus-specific allelic ladder

    SciTech Connect (OSTI)

    Puers, C. (Institute for Forensic Medicine, Muenster (Germany)); Schumm, J.W. (Promega Corp., Madison, WI (United States)); Hammond, H.A.; Caskey, C.T.; Jin, L.

    1993-10-01

    An allelic ladder containing amplified sequences of seven alleles of the polymorphic human tyrosine hydroxylase locus, HUMTH01, was constructed and employed as a standard marker. Sequence analysis of each ladder component indicates that fragments differ by integral multiples of the AATG core repeat sequence characteristic of this locus. Individual alles are designated [open quotes]5[close quotes] through [open quotes]11,[close quotes] according to the number of complete reiterations of the core repeat contained within them. Comparison of the HUMTH01 allelic ladder with DNA samples amplified at this locus revealed core repeat length heterogeneity (i.e., deletions or insertions shorter than one core repeat) within the human population. In particular, a common allele was identified which migrates more quickly than allele 10, but more slowly than allele 9, on electrophoresis through a denaturing polyacrylamide gel. Sequence analysis of this allele, designated [open quotes]10-1,[close quotes] reveals lack of a single adenine normally present in the seventh copy of the AATG. The allelic ladder was used to reevaluate previously published population data. Results of testing for Hardy-Weinberg equilibrium and population substructure were not altered significantly by these modifications. 29 refs., 1 fig., 3 tabs.

  3. Do $??$ bound states exist?

    E-Print Network [OSTI]

    J. Haidenbauer; Ulf-G. Meißner; S. Petschauer

    2014-12-09

    The existence of baryon-baryon bound states in the strangeness sector is examined in the framework of SU(3) chiral effective field theory. Specifically, the role of SU(3) symmetry breaking contact terms that arise at next-to-leading order in the employed Weinberg power counting scheme is explored. We focus on the 1S0 partial wave and on baryon-baryon channels with maximal isospin since in this case there are only two independent SU(3) symmetry breaking contact terms. At the same time, those are the channels where most of the bound states have been predicted in the past. Utilizing $pp$ phase shifts and $\\Sigma^+ p$ cross section data allows us to pin down one of the SU(3) symmetry breaking contact terms and a clear indication for the decrease of attraction when going from the NN system to strangeness S=-2 is found, which rules out a bound state for $\\Sigma\\Sigma$ with isospin I=2. Assuming that the trend observed for S=0 to S=-2 is not reversed when going to $\\Xi\\Sigma$ and $\\Xi\\Xi$ makes also bound states in those systems rather unlikely.

  4. Baryon states with hidden charm in the extended local hidden gauge approach

    E-Print Network [OSTI]

    Uchino, T; Oset, E

    2015-01-01

    The s-wave interaction of $\\bar{D} \\Lambda_c, \\bar{D} \\Sigma_c, \\bar{D} \\Lambda_c, \\bar{D}{}^* \\Sigma_c$ and $\\bar{D}\\Sigma^*_c, \\bar{D}{}^*\\Sigma^*_c$, is studied within a unitary coupled channels scheme with the extended local hidden gauge approach. In addition to the Weinberg-Tomozawa term, several additional diagrams via the pion-exchange are also taken into account as box potentials. Furthermore, in order to implement the full coupled channels calculation, some of the box potentials which mix the vector-baryon and pseudoscalar-baryon sectors are extended to construct the effective transition potentials. As a result, we have observed six possible states in several angular momenta. Four of them correspond to two pairs of admixture states, two of $\\bar{D}\\Sigma_c$ - $\\bar{D}{}^*\\Sigma_c$ with $J^P = 1/2^-$, and two of $\\bar{D}\\Sigma^*_c$ - $\\bar{D}{}^*\\Sigma^*_c$ with $J^P = 3/2^-$. Moreover, we find a $\\bar{D}{}^* \\Sigma_c$ resonance which couples to the $\\bar{D}\\Lambda_c$ channel and one spin degenerated ...

  5. An Instanton Toolbox for F-Theory Model Building

    E-Print Network [OSTI]

    Joseph Marsano; Natalia Saulina; Sakura Schafer-Nameki

    2009-07-23

    Several dimensionful parameters needed for model building can be engineered in a certain class of SU(5) F-theory GUTs by adding extra singlet fields which are localized along pairwise intersections of D7-branes. The values of these parameters, however, depend on dynamics external to the GUT which causes the singlets to acquire suitable masses or expectation values. In this note, we demonstrate that D3-instantons which wrap the same 4-cycle as one of the intersecting D7's can provide precisely the needed dynamics to generate several important scales, including the supersymmetry-breaking scale and the right-handed neutrino mass. Furthermore, these instantons seem unable to directly generate the \\mu term suggesting that, at least in this class of models, it should perhaps be tied to one of the other scales in the problem. More specifically, we study the simple system consisting of a pair of D7-branes wrapping del Pezzo surfaces which intersect along a curve $\\Sigma$ of genus 0 or 1 and classify all instanton configurations which can potentially contribute to the superpotential. This allows one to formulate topological conditions which must be imposed on \\Sigma for various model-building applications. Along the way, we also observe that the construction of arXiv:0808.1286 which engineers a linear superpotential in fact realizes an O'Raifeartaigh model at the KK scale whose 1-loop Coleman-Weinberg potential generically leads to a metastable, long-lived SUSY-breaking vacuum.

  6. Lorentz Multiplet Structure of Baryon Spectra and Relativistic Description

    E-Print Network [OSTI]

    Kirchbach, M

    1997-01-01

    The pole positions of the various baryon resonances are known to reveal well-pronounced clustering, so-called Hoehler clusters. For nonstrange baryons the Hoehler clusters are shown to be identical to Lorentz multiplets of the type (j,j)*[(1/2,0)+(0,1/2)] with j being a half-integer. For the Lambda hyperons below 1800 MeV these clusters are shown to be of the type [(1,0)+ (0,1)]*[(1/2,0)+(0,1/2)] while above 1800 MeV they are parity duplicated (J,0)+(0,J) (Weinberg-Ahluwalia) states. Therefore, for Lambda hyperons the restoration of chiral symmetry takes place above 1800 MeV. Finally, it is demonstrated that the description of spin-3/2 particles in terms of a 2nd rank antisymmetric Lorentz tensor with Dirac spinor components does not contain any off-shell parameters and avoids the main difficulties of the Rarita-Schwinger description based upon a 4-vector with Dirac spinor components.

  7. pi. sup minus p r arrow. pi. sup 0. pi. sup 0 n near threshold and chiral symmetry breaking

    SciTech Connect (OSTI)

    Lowe, J.; Bassalleck, B.; Burkhardt, H.; Fickinger, W.J.; Hall, J.R.; Hasinoff, M.D.; Horvath, D.; Koch, G.; Larson, K.D.; Miller, J.P.; Noble, A.; Roberts, B.L.; Robinson, D.K.; Sakitt, M.; Sevior, M.E.; Tanner, N.W.; Waltham, C.E.; Warner, T.M.; Wolfe, D.M. (University of Birmingham, Birmingham, B152TT, United Kingdom Boston University, Boston, Massachusetts (USA) University of British Columbia, Vancouver, British Columbia (Canada) Brookhaven National Laboratory, Upton, New York (USA) Case Western Reserve University, Cleveland, Ohio (USA) Central Research Institute for Physics, Budapest (Hungary) University of New Mexico, Albuquerque, New Mexico (USA) University of Nottingham, Nottingham, NG72RD, United Kingdom Oxford University, Oxford, OX13RH, United Kingdom TRIUMF, Vancouver, British Columbia, Canada)

    1991-09-01

    Total cross sections, angular, and mass distributions for the reaction {pi}{sup {minus}}{ital p}{r arrow}{pi}{sup 0}{pi}{sup 0}{ital n} have been measured for {ital p}{sub {pi}}{sup {minus}}(lab)=7--140 MeV/{ital c} above threshold. The threshold amplitude was used to determine a value for the chiral-symmetry-breaking parameter, {xi}, of {minus}0.98{plus minus}0.52. The {pi}{pi} scattering lengths {ital a}{sub {ital I}} for isospin {ital I}=0 and 2 are derived from this result, together with a current-algebra sum rule. The results are {ital a}{sub 0}=(0.207{plus minus}0.028){ital m}{sub {pi}}{sup {minus}1} and {ital a}{sub 2}=({minus}0.022{plus minus}0.011){ital m}{sub {pi}}{sup {minus}1}. These values are consistent with chiral symmetry broken by the Weinberg {pi}{pi} interaction and the effects of the {ital f}{sub 0}(975) scalar meson.

  8. Quantifying Resonant Structure in NGC 6946 from Two-dimensional Kinematics

    E-Print Network [OSTI]

    Fathi, Kambiz; Falcón-Barroso, Jesús; Beckman, John E; Hernandez, Olivier; Daigle, Olivier; Carignan, Claude; de Zeeuw, Tim

    2007-01-01

    We study the two-dimensional kinematics of the H-alpha-emitting gas in the nearby barred Scd galaxy, NGC 6946, in order to determine the pattern speed of the primary m=2 perturbation mode. The pattern speed is a crucial parameter for constraining the internal dynamics, estimating the impact velocities of the gravitational perturbation at the resonance radii, and to set up an evolutionary scenario for NGC 6946. Our data allows us to derive the best fitting kinematic position angle and the geometry of the underlying gaseous disk, which we use to derive the pattern speed using the Tremaine-Weinberg method. We find a main pattern speed Omega_p=22 km/s/kpc, but our data clearly reveal the presence of an additional pattern speed Omega_p=47 km/s/kpc in a zone within 1.25 kpc of the nucleus. Using the epicyclic approximation, we deduce the location of the resonance radii and confirm that inside the outer Inner Lindblad Resonance radius of the main oval, a primary bar has formed rotating at more than twice the outer p...

  9. Quantifying Resonant Structure in NGC 6946 from Two-dimensional Kinematics

    E-Print Network [OSTI]

    Kambiz Fathi; Silvia Toonen; Jesús Falcón-Barroso; John E. Beckman; Olivier Hernandez; Olivier Daigle; Claude Carignan; Tim de Zeeuw

    2007-08-08

    We study the two-dimensional kinematics of the H-alpha-emitting gas in the nearby barred Scd galaxy, NGC 6946, in order to determine the pattern speed of the primary m=2 perturbation mode. The pattern speed is a crucial parameter for constraining the internal dynamics, estimating the impact velocities of the gravitational perturbation at the resonance radii, and to set up an evolutionary scenario for NGC 6946. Our data allows us to derive the best fitting kinematic position angle and the geometry of the underlying gaseous disk, which we use to derive the pattern speed using the Tremaine-Weinberg method. We find a main pattern speed Omega_p=22 km/s/kpc, but our data clearly reveal the presence of an additional pattern speed Omega_p=47 km/s/kpc in a zone within 1.25 kpc of the nucleus. Using the epicyclic approximation, we deduce the location of the resonance radii and confirm that inside the outer Inner Lindblad Resonance radius of the main oval, a primary bar has formed rotating at more than twice the outer pattern speed. We further confirm that a nuclear bar has formed inside the Inner Lindblad Resonance radius of the primary bar, coinciding with the inner Inner Lindblad Resonance radius of the large-scale m=2 mode oval.

  10. Electroweak vacuum stability in classically conformal $B-L$ extension of the Standard Model

    E-Print Network [OSTI]

    Das, Arindam; Papapietro, Nathan

    2015-01-01

    We consider the minimal U(1)$_{B-L}$ extension of the Standard Model (SM) with the classically conformal invariance, where an anomaly free U(1)$_{B-L}$ gauge symmetry is introduced along with three generations of right-handed neutrinos and a U(1)$_{B-L}$ Higgs field. Because of the classically conformal symmetry, all dimensional parameters are forbidden. The $B-L$ gauge symmetry is radiatively broken through the Coleman-Weinberg mechanism, generating the mass for the $U(1)_{B-L}$ gauge boson ($Z^\\prime$ boson) and the right-handed neutrinos. Through a small negative coupling between the SM Higgs doublet and the $B-L$ Higgs field, the negative mass term for the SM Higgs doublet is generated and the electroweak symmetry is broken. In this model context, we investigate the electroweak vacuum instability problem in the SM. It is known that in the classically conformal U(1)$_{B-L}$ extension of the SM, the electroweak vacuum remains unstable in the renormalization group analysis at the one-loop level. In this pape...

  11. Dark matter production from Goldstone boson interactions and implications for direct searches and dark radiation

    E-Print Network [OSTI]

    Camilo Garcia-Cely; Alejandro Ibarra; Emiliano Molinaro

    2013-11-07

    The stability of the dark matter particle could be attributed to the remnant $Z_2$ symmetry that arises from the spontaneous breaking of a global U(1) symmetry. This plausible scenario contains a Goldstone boson which, as recently shown by Weinberg, is a strong candidate for dark radiation. We show in this paper that this Goldstone boson, together with the CP-even scalar associated to the spontaneous breaking of the global U(1) symmetry, plays a central role in the dark matter production. Besides, the mixing of the CP-even scalar with the Standard Model Higgs boson leads to novel Higgs decay channels and to interactions with nucleons, thus opening the possibility of probing this scenario at the LHC and in direct dark matter search experiments. We carefully analyze the latter possibility and we show that there are good prospects to observe a signal at the future experiments LUX and XENON1T provided the dark matter particle was produced thermally and has a mass larger than ~25 GeV.

  12. Gauge Field Theory of Horizontal Symmetry Generated by a Central Extension of the Pauli Algebra

    E-Print Network [OSTI]

    Ikuo S. Sogami

    2009-07-07

    The standard model of particle physics is generalized so as to be furnished with a horizontal symmetry generated by an intermediary algebra between simple Lie algebras $\\mathfrak{su}(2)$ and $\\mathfrak{su}(3)$. Above a certain high energy scale $\\breve{\\Lambda}$, the horizontal gauge symmetry is postulated to hold so that the basic fermions, quarks and leptons, form its fundamental triplets, and a triplet and singlet of the horizontal gauge fields distinguish generational degrees of freedom. A horizontal scalar triplet is introduced to make the gauge fields super-massive by breaking the horizontal symmetry at $\\breve{\\Lambda}$. From this scalar triplet, there emerge real scalar fields which do not interact with fermions except for neutrino species and may give substantial influence on evolution of the universe. Another horizontal scalar triplet which breaks the electroweak symmetry at a low energy scale $\\Lambda\\simeq 2\\times 10^2$GeV reproduces all of the results of the Weinberg-Salam theory, produces hierarchical mass matrices with less numbers of unknown parameters in a unified way and predicts six massive scalar particles, some of which might be observed by the future LHC experiment.

  13. Binding energy of the $X(3872)$ at unphysical pion masses

    E-Print Network [OSTI]

    Baru, V; Filin, A A; Gegelia, J; Nefediev, A V

    2015-01-01

    Chiral extrapolation of the $X(3872)$ binding energy is investigated using the modified Weinberg formulation of chiral effective field theory for the $D \\bar{D}^*$ scattering. Given its explicit renormalisability, this approach is particularly useful to explore the interplay of the long- and short-range $D \\bar{D}^*$ forces in the $X(3872)$ from studying the light-quark (pion) mass dependence of its binding energy. In particular, the parameter-free leading-order calculation shows that the $X$-pole disappears for unphysical large pion masses. On the other hand, without contradicting the naive dimensional analysis, the higher-order pion-mass-dependent contact interaction can change the slope of the binding energy at the physical point yielding the opposite scenario of a stronger bound $X$ at pion masses larger than its physical value. An important role of the pion dynamics and of the 3-body $D\\bar{D}\\pi$ effects for chiral extrapolations of the $X$-pole is emphasised. The results of the present study should be ...

  14. Jets in Effective Theory: Summing Phase Space Logs

    E-Print Network [OSTI]

    Michael Trott

    2006-11-27

    We demonstrate how to resum phase space logarithms in the Sterman-Weinberg (SW) dijet decay rate within the context of Soft Collinear Effective theory (SCET). An operator basis corresponding to two and three jet events is defined in SCET and renormalized. We obtain the RGE of the two and three jet operators and run the operators from the scale $\\mu^2 = Q^2$ to the phase space scale $ \\mu^2_\\delta = \\delta^2 Q^2$. This phase space scale, where $\\delta$ is the cone half angle of the jet, defines the angular region of the jet. At $ \\mu^2_{\\delta}$ we determine the mixing of the three and two jet operators. We combine these results with the running of the two jet shape function, which we run down to an energy cut scale $\\mu^2_{\\beta}$. This defines the resumed SW dijet decay rate in the context of SCET. The approach outlined here demonstrates how to establish a jet definition in the context of SCET. This allows a program of systematically improving the theoretical precision of jet phenomenology to be carried out.

  15. Influence of the Density Law on Various Fissile Single Unit and Array Storage Methods

    SciTech Connect (OSTI)

    Huang, S T

    2011-03-02

    The advancement of computational technology has resulted in the wide-spread availability of powerful radiation transport Monte Carlo codes. Prevailing practices today rely heavily on Monte Carlo codes to provide the basis for assessing the reactivity of various fissile systems for nuclear criticality safety (NCS). In 1958, Weinberg and Wigner expressed their concerns on a 'deplorable trend in reactor design - the tendency to substitute a code for a theory'. Unfortunately, their concerns have largely become a reality in many modern NCS practices. lacking the time or information to understand the underlying neutron physics of the fissile system under consideration is indeed a deplorable trend. The purpose of this paper is to demonstrate that many features of criticality hand calculation methods are indeed based upon the fundamentals of the density law and that many correlations of important physics parameters can be more easily understood from such a perspective. Historically, the density law was recognized by many pioneers in the field, including during the Manhattan Project. However, it was by and large an 'oral tradition' in that bits and pieces of great physical insights of the pioneers were scattered in many earlier publications. This paper attempts to bring together some of the 'jewels' of the pioneers which might have been lost or forgotten.

  16. Pyrococcus Furiosus Genome Supplementary Data from the Adams Laboratory at the University of Georgia

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Adams, Michael W.W.; Weinberg, Michael V.; Schut, Gerrit J.; Brehm, Scott; Datta, Susmitta; Zhou, J.

    The research in the Adams Laboratory focuses on the physiology of hyperthermophilic organisms with an emphasis on metal-containing enzymes in the hyperthermophilic marine archaeon Pyrococcus furiosus. Three of the many articles from this University of Georgia lab have supplementary materials that are available on the Adams Lab website. All three sets of data are Open Reading Frames (ORFs) used for DNA microarray experiments and the changes in signal intensities. The full citations for the three articles are: 1) Weinberg, M. V., Schut, G. J., Brehm, S., Datta, S. and Adams, M. W. W. (2005) Cold shock of a hyperthermophilic archaeon: Pyrococcus furiosus exhibits multiple responses to a suboptimal growth temperature with a key role for membrane-bound glycoproteins. J Bacteriol. 187, 336-348; 2) Schut, G. J., Brehm, S. D., Datta, S. and Adams, M. W. W. (2003) "Whole genome DNA microarray analysis of a hyperthermophile and an archaeon: Pyrococcus furiosus grown on carbohydrates or peptides" J. Bacteriol. 185, 3935-3947; Schut, G. J., Zhou, J. and Adams, M. W. W. (2001) "DNA microarray analysis of the hyperthermophilic archaeon Pyrococcus furiosus evidence for a new type of sulfur-reducing enzyme" J. Bacteriol. 183, 7027-7036. Note that these articles are copyrighted by the Journal of Bacteriology.

  17. Simulated VLBI Images From Relativistic Hydrodynamic Jet Models

    E-Print Network [OSTI]

    Amy J. Mioduszewski; Philip A. Hughes; G. Comer Duncan

    1996-06-03

    A series of simulated maps showing the appearance in total intensity of flows computed using a recently developed relativistic hydrodynamic code (Duncan \\& Hughes 1994: ApJ, 436, L119) are presented. The radiation transfer calculations were performed by assuming the flow is permeated by a magnetic field and fast particle distribution in energy equipartition, with energy density proportional to the hydrodynamic energy density (i.e., pressure). We find that relativistic flows subject to strong perturbations exhibit a density structure consisting of a series of nested bow shocks, and that this structure is evident in the intensity maps for large viewing angles. However, for viewing angles $<30^{\\circ}$, differential Doppler boosting leads to a series of axial knots of emission, similar to the pattern exhibited by many VLBI sources. The appearance of VLBI knots is determined primarily by the Doppler boosting of parts of a more extended flow. To study the evolution of a perturbed jet, a time series of maps was produced and an integrated flux light curve created. The light curve shows features characteristic of a radio loud AGN: small amplitude variations and a large outburst. We find that in the absence of perturbations, jets with a modest Lorentz factor ($\\sim 5$) exhibit complex intensity maps, while faster jets (Lorentz factor $\\sim 10$) are largely featureless. We also study the appearance of kiloparsec jet-counterjet pairs by producing simulated maps at relatively large viewing angles; we conclude that observed hot spot emission is more likely to be associated with the Mach disk than with the outer, bow shock.

  18. Kootenai River Focus Watershed Coordination, 2002-2003 Annual Report.

    SciTech Connect (OSTI)

    Munson, Bob; Munson, Vicki; Rogers, Rox

    2003-10-01

    The Kootenai River Network Inc. (KRN) was incorporated in Montana in early 1995 with a mission ''to involve stakeholders in the protection and restoration of the chemical, physical and biological integrity of the Kootenai River Basin waters''. The KRN operates with funding from donations, membership dues, private, state and federal grants, and with funding through the Bonneville Power Administration (BPA) for a Focus Watershed Coordinator Program. The Focus Watershed Program is administered to KRN as of October 2001, through a Memorandum of Understanding. Katie Randall resigned her position as Watershed Coordinator in late January 2003 and Munson Consulting was contracted to fill that position through the BPA contract period ending May 30, 2003. To improve communications with in the Kootenai River watershed, the board and staff engaged watershed stakeholders in a full day KRN watershed conference on May 15 and 16 in Bonners Ferry, Idaho. This Annual General Meeting was a tremendous success with over 75 participants representing over 40 citizen groups, tribes and state/provincial/federal agencies from throughout northern Montana and Idaho as well as British Columbia and Alberta. Membership in the KRN increased during the course of the BPA 02/03 grant period. The board of directors grew in numbers during this same time frame and an Advisory Council was formed to assist in transboundary efforts while developing two reorganized KRN committees (Habitat/Restoration/Monitoring (HRM) and Communication/Education/Outreach (CEO)). These committees will serve pivotal roles in communications, outreach, and education about watershed issues, as well as habitat restoration work being accomplished throughout the entire watershed. During this BPA grant period, the KRN has capitalized on the transboundary interest in the Kootenai River watershed. Jim and Laura Duncan of Kimberley, British Columbia, have been instrumental volunteers who have acted as Canadian liaisons to the KRN. As a result, restoration work is in the planning stages for Canadian tributaries that flow into the Moyie River in northern Idaho and the Yaak River in northwest Montana.

  19. Ventilatory function assessment in safety pharmacology: Optimization of rodent studies using normocapnic or hypercapnic conditions

    SciTech Connect (OSTI)

    Goineau, Sonia; Rompion, Sonia; Guillaume, Philippe; Picard, Sandra

    2010-09-15

    Although the whole body plethysmography for unrestrained animals is the most widely used method to assess the respiratory risk of new drugs in safety pharmacology, non-appropriate experimental conditions may mask deleterious side effects of some substances. If stimulant or bronchodilatory effects can be easily evidenced in rodents under standard experimental conditions, i.e. normal air breathing and diurnal phase, drug-induced respiratory depression remains more difficult to detect. This study was aimed at comparing the responsiveness of Wistar rats, Duncan Hartley guinea-pigs or BALB/c mice to the respiratory properties of theophylline (50 or 100 mg/kg p.o.) or morphine (30 mg/kg i.p.) under varying conditions (100% air versus 5% CO{sub 2}-enriched air, light versus dark day phase), in order to select the most appropriate experimental conditions to each species for safety airway investigations. Our results showed that under normocapnia the ventilatory depressant effects of morphine can be easily evidenced in mice, slightly observed in guinea-pigs and not detected in rats in any day phase. Slight hypercapnic conditions enhanced the responsiveness of rats to morphine but not that of guinea-pigs and importantly they did not blunt the airway responsiveness of rats to the stimulation and bronchodilation evoked by theophylline, the most widely used reference agent in safety pharmacology studies. In conclusion, hypercapnic conditions associated with the non-invasive whole body plethysmography should be considered for optimizing the assessment of both the ventilatory depressant potential of morphine-like substances or the respiratory stimulant effects of new drugs in the rat, the most extensively used species in rodent safety and toxicological investigations.

  20. Gene-Mating Dynamic Evolution Theory: fundamental assumptions, exactly solvable models and analytic solutions

    E-Print Network [OSTI]

    Juven Wang; Jiunn-Wei Chen

    2015-01-08

    Fundamental properties of macroscopic gene-mating dynamic evolutionary systems are investigated. A model is proposed to describe a large class of systems within population genetics. We focus on a single locus, arbitrary number alleles in a two-gender dioecious population. Our governing equations are time-dependent continuous differential equations labeled by a set of genotype frequencies. The full parameter space consists of all allowed genotype frequencies. Our equations are uniquely derived from four fundamental assumptions within any population: (1) a closed system; (2) average-and-random mating process (mean-field behavior); (3) Mendelian inheritance; (4) exponential growth and exponential death. Even though our equations are non-linear with time evolutionary dynamics, we have an exactly solvable model. Our findings are summarized from phenomenological and mathematical viewpoints. From the phenomenological viewpoint, any initial genotype frequency of a closed system will eventually approach a stable fixed point. Under time evolution, we show (1) the monotonic behavior of genotype frequencies, (2) any genotype or allele that appears in the population will never become extinct, (3) the Hardy-Weinberg law, and (4) the global stability without chaos in the parameter space. To demonstrate the experimental evidence, as an example, we show a mapping from the blood type genotype frequencies of world ethnic groups to our stable fixed-point solutions. From the mathematical viewpoint, the equilibrium solutions consist of a base manifold as a global stable attractor, attracting any initial point in a Euclidean fiber bundle to the fixed point where the fiber is attached. We can define the genetic distance of two populations as their geodesic distance on the equilibrium manifold. In addition, the modification of our theory under the process of natural selection and mutation is addressed.

  1. Strong reactions in quantum super PDEs. III: Exotic quantum supergravity

    E-Print Network [OSTI]

    Agostino Prástaro

    2015-03-23

    Following the previous two parts, of a work devoted to encode strong reaction dynamics in the A. Pr\\'astaro's algebraic topology of quantum super PDE's, nonlinear quantum propagators in the observed quantum super Yang-Mills PDE, $\\hat{(YM)}[i]$, are further characterized. In particular, nonlinear quantum propagators with non-zero defect quantum electric-charge, are interpreted as {\\em exotic-quantum supergravity} effects. As an application, the recently discovered bound-state called $Zc(3900)$, is obtained as a neutral quasi-particle, generated in a $Q$-quantum exotic supergravity process. {\\em Quantum entanglement} is justified by means of the algebraic topologic structure of nonlinear quantum propagators. Quantum Cheshire cats are considered as examples of quantum entanglements. Existence theorem for solutions of $\\hat{(YM)}[i]$ admitting negative local temperatures ({\\em quantum thermodynamic-exotic solutions}) is obtained too and related to quantum entanglement. Such exotic solutions are used to encode Universe at the Planck-epoch. It is proved that the Universe's expansion at the Planck epoch is justified by the fact that it is encoded by a nonlinear quantum propagator having thermodynamic quantum exotic components in its boundary. This effect produces also an increasing of energy in the Universe at the Einstein epoch: {\\em Planck-epoch-legacy} on the boundary of our Universe. This is the main source of the Universe's expansion and solves the problem of the non-apparent energy-matter ({\\em dark-energy-matter}) in the actual Universe. Breit-Wheeler-type processes have been proved in the framework of the Pr\\'astaro's algebraic topology of quantum super Yang-Mills PDEs. Numerical comparisons of nonlinear quantum propagators with Weinberg-Salam electroweak theory in Standard Model are given.

  2. Quantitative Assessment of Workload and Stressors in Clinical Radiation Oncology

    SciTech Connect (OSTI)

    Mazur, Lukasz M., E-mail: lukasz_mazur@ncsu.edu [Department of Radiation Oncology, University of North Carolina, Chapel Hill, North Carolina (United States); Industrial Extension Service, North Carolina State University, Raleigh, North Carolina (United States); Biomedical Engineering, North Carolina State University, Raleigh, North Carolina (United States); Mosaly, Prithima R. [Industrial Extension Service, North Carolina State University, Raleigh, North Carolina (United States)] [Industrial Extension Service, North Carolina State University, Raleigh, North Carolina (United States); Jackson, Marianne; Chang, Sha X.; Burkhardt, Katharin Deschesne; Adams, Robert D.; Jones, Ellen L.; Hoyle, Lesley [Department of Radiation Oncology, University of North Carolina, Chapel Hill, North Carolina (United States)] [Department of Radiation Oncology, University of North Carolina, Chapel Hill, North Carolina (United States); Xu, Jing [Industrial Extension Service, North Carolina State University, Raleigh, North Carolina (United States)] [Industrial Extension Service, North Carolina State University, Raleigh, North Carolina (United States); Rockwell, John; Marks, Lawrence B. [Department of Radiation Oncology, University of North Carolina, Chapel Hill, North Carolina (United States)] [Department of Radiation Oncology, University of North Carolina, Chapel Hill, North Carolina (United States)

    2012-08-01

    Purpose: Workload level and sources of stressors have been implicated as sources of error in multiple settings. We assessed workload levels and sources of stressors among radiation oncology professionals. Furthermore, we explored the potential association between workload and the frequency of reported radiotherapy incidents by the World Health Organization (WHO). Methods and Materials: Data collection was aimed at various tasks performed by 21 study participants from different radiation oncology professional subgroups (simulation therapists, radiation therapists, physicists, dosimetrists, and physicians). Workload was assessed using National Aeronautics and Space Administration Task-Load Index (NASA TLX). Sources of stressors were quantified using observational methods and segregated using a standard taxonomy. Comparisons between professional subgroups and tasks were made using analysis of variance ANOVA, multivariate ANOVA, and Duncan test. An association between workload levels (NASA TLX) and the frequency of radiotherapy incidents (WHO incidents) was explored (Pearson correlation test). Results: A total of 173 workload assessments were obtained. Overall, simulation therapists had relatively low workloads (NASA TLX range, 30-36), and physicists had relatively high workloads (NASA TLX range, 51-63). NASA TLX scores for physicians, radiation therapists, and dosimetrists ranged from 40-52. There was marked intertask/professional subgroup variation (P<.0001). Mental demand (P<.001), physical demand (P=.001), and effort (P=.006) significantly differed among professional subgroups. Typically, there were 3-5 stressors per cycle of analyzed tasks with the following distribution: interruptions (41.4%), time factors (17%), technical factors (13.6%), teamwork issues (11.6%), patient factors (9.0%), and environmental factors (7.4%). A positive association between workload and frequency of reported radiotherapy incidents by the WHO was found (r = 0.87, P value=.045). Conclusions: Workload level and sources of stressors vary among professional subgroups. Understanding the factors that influence these findings can guide adjustments to the workflow procedures, physical layout, and/or communication protocols to enhance safety. Additional evaluations are needed in order to better understand if these findings are systemic.

  3. REPORT on the TRUCK BRAKE LINING WORKSHOP and FLEET OPERATORS' SURVEY

    SciTech Connect (OSTI)

    Blau, P.J.

    2003-02-03

    The report summarizes what transpired during brake linings-related workshop held at the Fall 2003 meeting of the Technology and Maintenance Council (TMC) in Charlotte, NC. The title of the workshop was ''Developing a Useful Friction Material Rating System''. It was organized by a team consisting of Peter Blau (Oak Ridge National Laboratory), Jim Britell (National Highway Traffic Safety Administration), and Jim Lawrence (Motor and Equipment Manufacturers Association). The workshop was held under the auspices of TMC Task Force S6 (Chassis), chaired by Joseph Stianche (Sanderson Farms, Inc.). Six invited speakers during the morning session provided varied perspectives on testing and rating aftermarket automotive and truck brake linings. They were: James R. Clark, Chief Engineer, Foundation Brakes and Wheel Equipment, Dana Corporation, Spicer Heavy Axle and Brake Division; Charles W. Greening, Jr, President, Greening Test Labs; Tim Duncan, General Manager, Link Testing Services;Dennis J. McNichol, President, Dennis NationaLease; Jim Fajerski, Business Manager, OE Sales and Applications Engineering, Federal Mogul Corporation; and Peter J. Blau, Senior Materials Development Engineer, Oak Ridge National Laboratory. The afternoon break-out sessions addressed nine questions concerning such issues as: ''Should the federal government regulate aftermarket lining quality?''; ''How many operators use RP 628, and if so, what's good or bad about it?''; and ''Would there be any value to you of a vocation-specific rating system?'' The opinions of each discussion group, consisting of 7-9 participants, were reported and consolidated in summary findings on each question. Some questions produced a greater degree of agreement than others. In general, the industry seems eager for more information that would allow those who are responsible for maintaining truck brakes to make better, more informed choices on aftermarket linings. A written fleet operator survey was also conducted during the TMC meeting. Twenty-one responses were received, spanning fleet sizes between 12 and 170,000 vehicles. Responses are summarized in a series of tables separated into responses from small (100 or fewer powered vehicles), medium (101-1000 vehicles), and large fleets (>1000 vehicles). The vast majority of fleets do their own brake maintenance, relying primarily on experience and lining manufactures to select aftermarket linings. At least half of the responders are familiar to some extent with TMC Recommended Practice 628 on brake linings, but most do not use this source of test data as the sole criterion to select linings. Significant shortfalls in the applicability of TMC RP 628 to certain types of brake systems were noted.

  4. A Radiocarbon Chronology of Hunter-Gatherer Occupation from Bodega Bay, California, USA

    SciTech Connect (OSTI)

    Kennedy, M A; Russell, A D; Guilderson, T P

    2005-04-27

    The evolution of hunter-gatherer maritime adaptations in western North America has been a prominent topic of discussion among archaeologists in recent years (e.g. Arnold 1992; Erlandson and Colten 1991; Erlandson and Glassow 1997; Lightfoot 1993). Although vast coastal regions of the northeastern Pacific (for example, southern California) have been investigated in detail, our understanding of hunter-gatherer developments along the coast of northern California is limited. Previous research indicates that humans have exploited marine mammals, fish and shellfish along the northern California shoreline since the early Holocene (Schwaderer 1992). By the end of the late Holocene, some groups remained year-round on the coast subsisting primarily on marine resources (e.g. Gould 1975; Hildebrandt and Levulett 2002). However, a paucity of well-dated cultural deposits has hindered our understanding of these developments, particularly during the early and middle Holocene. The lack of a long and reliable chronological sequence has restricted our interpretations of behavioral change, including the adaptive strategies (such as foraging, mobility and settlement) used by human foragers to colonize and inhabit the coastal areas of this region. These shortcomings have also hindered comparative interpretations with other coastal and inland regions in western North America. Here we present a Holocene radiocarbon chronology of hunter-gatherer occupation based on contemporaneous samples of charcoal and Mytilus californianus (California sea mussel) shell recovered from seven archaeological sites near Bodega Bay, California. A series of 127 {sup 14}C ages reveal a chronological sequence that spans from ca. 8940-110 cal BP (1{sigma}) (7890-160 {sup 14}C yr BP = charcoal; 8934-101 {sup 14}C yr BP = shell). As part of this sequence, we report new {sup 14}C dates from the stratified cave and open-air midden deposits at Duncan's Landing (CA-SON-348/H). In addition, we present {sup 14}C ages from three middle Holocene sites located in the Bodega Dunes, and from three late Holocene sites, including Kili (CASON-299), the oldest known village site in the region. Bodega Bay (38 degrees 19 minutes N, 123 degrees 03 minutes W) is situated about 90 km north of San Francisco Bay, California (Figure 1). The Pacific, in conjunction with prominent geomorphological features, has given rise to a series of coastal habitats (e.g. semi-protected and protected shorelines) around Bodega Bay that are rather unique for the unprotected, surf swept rocky shores of northern California. This stretch of coastline also lies within a zone of particularly strong seasonal upwelling between Point Reyes Peninsula and Cape Mendocino; a region characterized by high Ekman transport (Huyer 1983), and high coastal concentrations of the nutrients silica and phosphate (van Geen and Husby 1996). The interaction between land and sea results in a productive marine ecosystem that has attracted hunter-gatherers for much of the Holocene.