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Note: This page contains sample records for the topic "quantitative trait loci" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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1

High resolution linkage and association study of quantitative trait loci  

E-Print Network [OSTI]

As a large number of single nucleotide polymorphisms (SNPs) and microsatellite markers are available, high resolution mapping employing multiple markers or multiple allele markers is an important step to identify quantitative trait locus (QTL...

Jung, Jeesun

2005-11-01T23:59:59.000Z

2

Identification of Quantitative Trait Loci (QTLs) Associated with Maintenance of Bread Making Quality under Heat Stress in Wheat (Triticum aestivum)  

E-Print Network [OSTI]

IDENTIFICATION OF QUANTITATIVE TRAIT LOCI (QTLs) ASSOCIATED WITH MAINTENANCE OF BREAD MAKING QUALITY UNDER HEAT STRESS IN WHEAT (Triticum aestivum) A Thesis by FRANCIS WARD BEECHER Submitted to the Office of Graduate Studies of Texas A&M University... in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 2009 Major Subject: Molecular and Environmental Plan Sciences IDENTIFICATION OF QUANTITATIVE TRAIT LOCI (QTLs) ASSOCIATED WITH MAINTENANCE OF BREAD MAKING QUALITY UNDER HEAT...

Beecher, Francis Ward

2010-10-12T23:59:59.000Z

3

Quantitative trait loci analysis to identify modifiers genes of the gene opaque2 in maize endosperm  

E-Print Network [OSTI]

with CIM analysis for traits related with endosperm texture modification (TEXT-F, TEXT-L, OPAC, and VITR) and amino acids content (Lys, Trp and Met) in a population of RILs derived from the cross between maize lines CML161 and B73o2 evaluated... with CIM analysis for traits related with endosperm texture modification (TEXT-F, TEXT-L, OPAC, and VITR) and amino acids content (Lys, Trp and Met) in a population of RILs derived from the cross between maize lines CML161 and B73o2 evaluated...

Gutierrez Rojas, Libardo Andres

2009-05-15T23:59:59.000Z

4

Model for mapping imprinted quantitative trait loci in an inbred F2 design Yuehua Cui a  

E-Print Network [OSTI]

control of complex traits. © 2005 Elsevier Inc. All rights reserved. Keywords: EM algorithm; F2; Imprinted, University of Florida, Gainesville, FL 32611, USA b Department of Anatomy and Neurobiology, Washington University Medical School, St. Louis, MO 63110, USA Received 25 July 2005; accepted 29 November 2005

Cheverud, James M.

5

Quantitative Trait Loci Affecting Milk Yield and Protein Percentage in a Three-Country Brown Swiss Population  

Science Journals Connector (OSTI)

Quantitative trait loci (QTL) mapping projects have been implemented mainly in the Holstein dairy cattle breed for several traits. The aim of this study is to map QTL for milk yield (MY) and milk protein percent (PP) in the Brown Swiss cattle populations of Austria, Germany, and Italy, considered in this study as a single population. A selective DNA pooling approach using milk samples was applied to map QTL in 10 paternal half-sib daughter families with offspring spanning from 1,000 to 3,600 individuals per family. Three families were sampled in Germany, 3 in Italy, 1 in Austria and 3 jointly in Austria and Italy. The pools comprised the 200 highest and 200 lowest performing daughters, ranked by dam-corrected estimated breeding value for each sire-trait combination. For each tail, 2 independent pools, each of 100 randomly chosen daughters, were constructed. Sire marker allele frequencies were obtained by densitometry and shadow correction analyses of 172 genome-wide allocated autosomal markers. Particular emphasis was placed on Bos taurus chromosomes 3, 6, 14, and 20. Marker association for MY and PP with a 10% false discovery rate resulted in nominal P-values of 0.071 and 0.073 for MY and PP, respectively. Sire marker association tested at a 20% false discovery rate (within significant markers) yielded nominal P-values of 0.031 and 0.036 for MY and PP, respectively. There were a total of 36 significant markers for MY, 33 for PP, and 24 for both traits; 75 markers were not significant for any of the traits. Of the 43 QTL regions found in the present study, 10 affected PP only, 8 affected MY only, and 25 affected MY and PP. Remarkably, all 8 QTL regions that affected only MY in the Brown Swiss, also affected MY in research reported in 3 Web-based QTL maps used for comparison with the findings of this study (http://www.vetsci.usyd.edu.au/reprogen/QTL_Map/; http://www.animalgenome.org/QTLdb/cattle.html; http://bovineqtl.tamu.edu/). Similarly, all 10 QTL regions in the Brown Swiss that affected PP only, affected only PP in the databases. Thus, many QTL appear to be common to Brown Swiss and other breeds in the databases (mainly Holstein), and an appreciable fraction of QTL appears to affect MY or PP primarily or exclusively, with little or no effect on the other trait. Although QTL information available today in the Brown Swiss population can be utilized only in a within family marker-assisted selection approach, knowledge of QTL segregating in the whole population should boost gene identification and ultimately the implementation and efficiency of an individual genomic program.

A. Bagnato; F. Schiavini; A. Rossoni; C. Maltecca; M. Dolezal; I. Medugorac; J. Sölkner; V. Russo; L. Fontanesi; A. Friedmann; M. Soller; E. Lipkin

2008-01-01T23:59:59.000Z

6

Effect of Quantitative Trait Loci for Milk Protein Percentage on Milk Protein Yield and Milk Yield in Israeli Holstein Dairy Cattle  

Science Journals Connector (OSTI)

Although numerous quantitative trait loci (QTL) mapping studies involving milk protein percent (PP), milk yield (MY), and protein yield (PY) have been carried out, there has not been any systematic evaluation of the effects of individual QTL on these 3 interrelated traits. Consequently, the aim of the present study was to investigate the effects on MY and PY of QTL for PP previously mapped in various laboratories. The study, based on selective DNA pooling of milk samples, included 10 Israeli Holstein artificial insemination bulls, each the sire of 1,800 or more milk-recorded daughters. For each sire-trait combination across the 10 sires, milk samples of the highest and lowest daughters with respect to estimated breeding values for PP, PY, and MY were collected for pooling. A total of 134 dinucleotide microsatellites distributed over 25 bovine autosomes were used. An empirical standard error for marker-QTL linkage testing was calculated based on the variation among split samples within the same tail. Threshold comparison-wise error rate P-values were set to control proportion of false positives at P = 0.10 level for declaring significant effects at the marker-trait level. Estimates of the number of true null hypotheses for each trait were obtained from the histogram of marker comparison-wise error rate P-values. Based on these estimates, effective power of the experiment at the marker-trait level was estimated as 0.75, 0.41, and 0.73 for PP, PY, and MY. The proportion of heterozygosity at the QTL was estimated as 0.46, 0.39, and 0.40, respectively. After correcting for incomplete power and proportion of false positives, it was estimated that 38.7 and 37.5% of the markers affecting PP and MY, respectively, also affected PY. Of the markers affecting PY, 68.9 and 76.5%, respectively, also affected PP and MY. Apparently, none of the significant markers affected PY exclusively, and only 6.5 and 16.0%, respectively, affected PP or MY exclusively. Thus, almost all significant markers, and by inference almost all QTL, had effects on at least 2 of the 3 traits.

E. Lipkin; R. Tal-Stein; A. Friedmann; M. Soller

2008-01-01T23:59:59.000Z

7

BioMercator V3: an upgrade of genetic map compilation and quantitative trait loci meta-analysis algorithms  

Science Journals Connector (OSTI)

......software offering a complete set of algorithms and visualization...2004) offers a complete set of analysis and visualization...process several times to fully cover a chromosome. In addition...display, only a randomly selected set of loci is represented at whole......

Olivier Sosnowski; Alain Charcosset; Johann Joets

2012-08-01T23:59:59.000Z

8

An integrative functional genomics approach towards quantitative trait gene nomination in existing and emerging mouse genetic reference populations.  

E-Print Network [OSTI]

??An approach that has been widely applied for the genetic dissection of complex traits is Quantitative Trait Locus (QTL) mapping. QTL mapping identifies genomic regions… (more)

Philip, Vivek

2012-01-01T23:59:59.000Z

9

Developing a web accessible integrated database and visualization tool for bovine quantitative trait loci  

E-Print Network [OSTI]

and associated annotations, Loraine and Helt (Loraine and Helt 2002) describe visualization techniques for presenting human genomic sequence data and annotations in an interactive, graphical format. These techniques include: one-dimensional, semantic zooming....A., Lewis, S., Loraine, A.E. and Rubin, G.M. 1998. BioViews: Java-based tools for genomic data visualization. Genome Res. 8: 291-305 Kent, W.J., Sugnet, C.W., Furey, T.S., Roskin, K.M., Pringle, T.H., Zahler, A.M. and Haussler, D. 2002. The human...

Polineni, Pavana

2005-08-29T23:59:59.000Z

10

Expression Quantitative Trait Loci Are Highly Sensitive to Cellular Differentiation State  

E-Print Network [OSTI]

Department of Cell Biology, Section Stem Cell Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands, 2 Groningen Bioinformatics Centre, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Haren, The Netherlands, 3 Department of Anatomy

Breitling, Rainer

11

IDENTIFICATION OF DROUGHT-RELATED QUANTITATIVE TRAIT LOCI (QTLs) IN SUGARCANE (Saccharum spp.) USING GENIC MARKERS  

E-Print Network [OSTI]

Population based association studies in crops that were established by domestication and early breeding can be a valuable basis for the identification of QTLs. A case control design in a population is an ideal way to identify maximum candidate sites...

Sharma, Vivek

2011-08-08T23:59:59.000Z

12

Regression-based quantitative trait loci mapping: robust, efficient and effective  

Science Journals Connector (OSTI)

...model (section-union test)? Both Jansen (1993) and Zeng (1993) highlighted...regression. Genetics. 151, 885-894. Jansen, R.C 1993Interval mapping of multiple...140, 1111-1127. Johnson, D.L , Jansen, R.C, van Arendonk, J.A.M1999Mapping...

2005-01-01T23:59:59.000Z

13

Quantitative trait loci(qtl) analysis of yield components and heat tolerance in wheat (Triticum aestivum)  

E-Print Network [OSTI]

This study was conducted to identify and map QTLs for yield components and heat tolerance of wheat in response to two kinds of heat treatment (short term-and long term-heat treatment) during seed formation in a set of 62 RILs derived from a cross...

Do, Jung Hwa

2009-05-15T23:59:59.000Z

14

Advancing Genetic Theory and Application by Metabolic Quantitative Trait Loci Analysis  

Science Journals Connector (OSTI)

...non-germinating gibberellin sensitive lines of Arabidopsis thaliana (L...Dobson, I. (2008). Using transmission line outage data to estimate cascading failure...of interspecific introgression lines for tomato improvement. Nat...

DanielJ. Kliebenstein

2009-06-12T23:59:59.000Z

15

Quantitative Trait Loci Pyramiding Can Improve the Nutritional Potential of Tomato (Solanum lycopersicum) Fruits  

Science Journals Connector (OSTI)

Solanum lycopersicum; antioxidant power; ascorbic acid; phenolics; phenolic acid; MTT test ... In addition, to assess the nutraceutical potential of the DHO lines, we tested the activity of tomato fruit extracts on the proliferation of human normal and cancer cell lines. ... The HAA determined by FRAP and ABTS tests in M82 showed values of 115.36 ± 11.89 and 131.61 ± 13.34 ?mol TE/100 g FW, respectively. ...

Maria Manuela Rigano; Assunta Raiola; Gian Carlo Tenore; Daria Maria Monti; Rita Del Giudice; Luigi Frusciante; Amalia Barone

2014-11-04T23:59:59.000Z

16

Network Quantitative Trait Loci Mapping of Circadian Clock Outputs Identifies Metabolic Pathway-to-Clock Linkages in Arabidopsis  

Science Journals Connector (OSTI)

...metabolism can affect the clock (Fukushima et al., 2009). Given the...function in an incoherent feed-forward loop in the regulation of...Gutierrez et al., 2008; Fukushima et al., 2009). Our results...UK: Longman, Harlow). Fukushima, A. , Kusano, M., Nakamichi...

Rachel E. Kerwin; Jose M. Jimenez-Gomez; Daniel Fulop; Stacey L. Harmer; Julin N. Maloof; Daniel J. Kliebenstein

2011-02-22T23:59:59.000Z

17

Network Quantitative Trait Loci Mapping of Circadian Clock Outputs Identifies Metabolic Pathway-to-Clock Linkages in Arabidopsis  

Science Journals Connector (OSTI)

...2008; Kovac et al., 2009; Wood et al., 2010). Interestingly...information whereby the clock can gate responses to defense responses...visualized as a heat plot using a red/blue color scheme using the...Scientific), moved to constant red light (50 mumol m2 s1), and...

Rachel E. Kerwin; Jose M. Jimenez-Gomez; Daniel Fulop; Stacey L. Harmer; Julin N. Maloof; Daniel J. Kliebenstein

2011-02-22T23:59:59.000Z

18

Copyright 2003 by the Genetics Society of America Mapping Quantitative Trait Loci in the Case of a Spike  

E-Print Network [OSTI]

on the Kruskal-Wallis test. The performance of the proposed procedures is assessed via computer simulation

Broman, Karl W.

19

Multiple Quantitative Trait Loci Influence the Shape of a Male-Specific Genital Structure in Drosophila melanogaster  

E-Print Network [OSTI]

interval mapping (IM; Lander and Botstein 1989) and com- posite interval mapping (CIM; Zeng 1994) were performed using the multiple imputation method of Sen and Churchill (2001) with 256 imputations. Statistical significance was determined from 1000 per... shape score for the paired lobes (r Ľ 0.85). Although IM has high power to identify QTL, it can provide unreliable estimates of the number and location of QTL (Zeng 1994; Cornforth and Long 2003). Therefore, we applied CIM to the mPC1 dataset to increase...

McNeil, Casey Lee; Bain, Clint L.; Macdonald, Stuart J.

2011-10-01T23:59:59.000Z

20

Joint linkage–linkage disequilibrium mapping is a powerful approach to detecting quantitative trait loci underlying drought tolerance in maize  

Science Journals Connector (OSTI)

...and one QTL for ASI-WS by CIM. Candidate...SNPs from the RA chip. Gene Ontology analysis and a literature...Cartographer version 2.5. For CIM, empirical thresholds for declaring significant QTL at P...single-marker analysis in red and CIM in blue, using C5, C6, and...

Yanli Lu; Shihuang Zhang; Trushar Shah; Chuanxiao Xie; Zhuanfang Hao; Xinhai Li; Mohammad Farkhari; Jean-Marcel Ribaut; Moju Cao; Tingzhao Rong; Yunbi Xu

2010-01-01T23:59:59.000Z

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


21

Quantitative Trait Loci for Seed Isoflavone Contents in ‘MD96-5722’ by ‘Spencer’ Recombinant Inbred Lines of Soybean  

Science Journals Connector (OSTI)

Gutierrez-Gonzalez, J. J.; Wu, X. L.; Gillman, J. D.; Lee, J. D.; Zhong, R.; Yu, O.; Shannon, G.; Ellersieck, M.; Nguyen, H. T.; Sleper, D. A.Intricate environment-modulated genetic networks control isoflavone accumulation in soybean seeds BMC Plant Biol. ... Gutierrez-Gonzalez Juan J; Wu Xiaolei; Gillman Jason D; Lee Jeong-Dong; Zhong Rui; Yu Oliver; Shannon Grover; Ellersieck Mark; Nguyen Henry T; Sleper David A ...

Masum Akond; Shiming Liu; Stella K. Kantartzi; Khalid Meksem; Nacer Bellaloui; David A. Lightfoot; Jiazheng Yuan; Dechun Wang; My Abdelmajid Kassem

2014-01-29T23:59:59.000Z

22

Genetic Mapping of Quantitative Trait Loci Associated with Bioenergy Traits, and The Assessment of Genetic Variability in Sweet Sorghum (Sorghum bicolor (L.). Moench).  

E-Print Network [OSTI]

??Sweet sorghum, a botanical variety of sorghum is a potential source of bioenergy because high sugar levels accumulate in its stalks. The objectives of this… (more)

Lekgari, Aatshwaelwe Lekgari

2010-01-01T23:59:59.000Z

23

cell trait? Know your sickle cell trait status.  

E-Print Network [OSTI]

What is sickle cell trait? Know your sickle cell trait status. Engage in a slow and gradual experiencing unusual physical distress. People at high risk for having sickle cell trait are those whose countries. sickle cell trait is not a disease. Sickle cell trait is the inheritance of one gene for sickle

Devoto, Stephen H.

24

Detection of QTL for forage yield, lodging resistance and spring vigor traits in alfalfa (Medicago sativa L.)  

Science Journals Connector (OSTI)

Alfalfa (Medicago sativa L.) is an internationally significant forage crop. Forage yield, lodging resistance and spring vigor are important agronomic traits conditioned by quantitative genetic and environmental e...

Per McCord; Vanessa Gordon; Gopesh Saha; Jacqueline Hellinga; George Vandemark…

2014-11-01T23:59:59.000Z

25

Traits and Multiple Genes  

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

Traits and Multiple Genes Traits and Multiple Genes Name: Frank Location: N/A Country: N/A Date: N/A Question: Please, could you give me an example of how human traits are controlled by more than one pair of alleles? Replies: Your question is just a bit vague, there are different answers depending on just what your question is. I will answer it in terms of polygenic traits also known as additive alleles. When you think of traits such as skin color, hair color and eye color, or traits where there is a wide range of phenotypes they are usually under the control of more than one pair of alleles. These alleles can even be on different chromosomes! Each pair of additive alleles adds to the phenotype. For instance in the case of skin color, scientists now believe that 3 genes control skin color. You then get 3 sets from your mother and 3 from your father for 6 possibilities. If all 6 of the alleles are for dark skin, you will have the darkest possible skin. If you have 5 dark alleles and one light, you will have very dark skin. If you have all 6 light alleles then you will have the lightest skin possible. Is it possible to have a child that is light skinned when both parents are dark-skinned? Well, not if both have all 6 dark alleles, but if they have some light alleles and the child inherits all of the possible light alleles available, then yes, the child could have lighter skin than either parent. It is now believed that eye color is not simply brown being dominant over blue because how many people do you know that have the same shade of brown or blue eyes? Eye color must also be polygenic.

26

Design and analysis of genetical genomics studies and their potential applications in livestock research   

E-Print Network [OSTI]

Quantitative Trait Loci (QTL) mapping has been widely used to identify genetic loci attributable to the variation observed in complex traits. In recent years, gene expression phenotypes have emerged as a new type of ...

Lam, Alex C.

2009-01-01T23:59:59.000Z

27

Differential detection of genetic loci underlying stem and root lignin content in Populus  

SciTech Connect (OSTI)

For simultaneous applications directed towards improved pulp yields, enhanced bioethanol production and increased carbon sequestration, it would be desirable to reduce lignin in the harvested stem while increasing the lignin content in nonharvested roots. In this study, we established a comprehensive genetic map with a large number of progeny from a three-generation hybrid Populus intercross, and phenotyped the lignin content, S/G ratio and 28 cell wall subcomponents both in stems and roots for the mapping individuals. Phenotypic analysis revealed that lignin content and syringyl-to-guaiacyl (S/G) ratio using pyrolysis molecular beam mass spectroscopy (pyMBMS) varied among mapping individuals. Phenotypic analysis revealed that stem lignin content is significantly higher than that in root and the quantified traits can be classified into four distinct groups, with strong correlations observed among components within organs. Altogether, 179 coordinating QTLs were detected, and they were co-localized into 49 genetic loci, 27 of which appear to be pleiotropic. Many of the detected genetic loci were detected differentially in stem and root. This is the first report of separate genetic loci controlling cell wall phenotypes above and below ground. These results suggest that it may be possible to modify lignin content and composition via breed and/or engineer as a means of simultaneously improving Populus for cellulosic ethanol production and carbon sequestration.

Tuskan, Gerald A [ORNL; Yin, Tongming [ORNL; Zhang, Xinye [ORNL; Gunter, Lee E [ORNL; Ranjan, Priya [ORNL; Sykes, Robert [National Renewable Energy Laboratory (NREL); Davis, Dr. Mark F. [National Renewable Energy Laboratory (NREL); Wullschleger, Stan D [ORNL

2010-11-01T23:59:59.000Z

28

Mapping genomic features to functional traits through microbial whole genome sequences  

Science Journals Connector (OSTI)

Recently, the utility of trait-based approaches for microbial communities has been identified. Increasing availability of whole genome sequences provide the opportunity to explore the genetic foundations of a variety of functional traits. We proposed a machine learning framework to quantitatively link the genomic features with functional traits. Genes from bacteria genomes belonging to different functional traits were grouped to Cluster of Orthologs (COGs), and were used as features. Then, TF-IDF technique from the text mining domain was applied to transform the data to accommodate the abundance and importance of each COG. After TF-IDF processing, COGs were ranked using feature selection methods to identify their relevance to the functional trait of interest. Extensive experimental results demonstrated that functional trait related genes can be detected using our method. Further, the method has the potential to provide novel biological insights.

Wei Zhang; Erliang Zeng; Dan Liu; Stuart E. Jones; Scott Emrich

2014-01-01T23:59:59.000Z

29

Epistasis dominates the genetic architecture of Drosophila quantitative traits  

Science Journals Connector (OSTI)

...Anholt Julien F. Ayroles Laura Duncan Katherine W. Jordan Faye Lawrence Michael M. Magwire...13 reference genome with the Burrows-Wheeler Aligner (BWA) (27) using default parameters. GATK (28) software...long-read alignment with Burrows-Wheeler transform . Bioinformatics 26 : 589...

Wen Huang; Stephen Richards; Mary Anna Carbone; Dianhui Zhu; Robert R. H. Anholt; Julien F. Ayroles; Laura Duncan; Katherine W. Jordan; Faye Lawrence; Michael M. Magwire; Crystal B. Warner; Kerstin Blankenburg; Yi Han; Mehwish Javaid; Joy Jayaseelan; Shalini N. Jhangiani; Donna Muzny; Fiona Ongeri; Lora Perales; Yuan-Qing Wu; Yiqing Zhang; Xiaoyan Zou; Eric A. Stone; Richard A. Gibbs; Trudy F. C. Mackay

2012-01-01T23:59:59.000Z

30

Evolution, biodiversity, taxonomy Polymorphism of eps loci involved in exopolysaccharide  

E-Print Network [OSTI]

Evolution, biodiversity, taxonomy Polymorphism of eps loci involved in exopolysaccharide synthesis ORFs and five copies of three insertion sequences (IS) types belonging to the eps locus and ORFs sequences from Lactococcus lactis. Further- more, sequence comparison of eps loci of three S

Paris-Sud XI, Université de

31

An Evolutionary Reduction Principle for Mutation Rates at Multiple Loci  

E-Print Network [OSTI]

An Evolutionary Reduction Principle for Mutation Rates at Multiple Loci Lee Altenberg altenber of the reduction principle is found: reduction results at individual loci combine topologically to produce to the reduction principle, and under fine tuning of mutation rates would be expected to have higher mutation rates

Altenberg, Lee

32

Quantitative Thermography  

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

Quantitative Thermography Quantitative Thermography Images collected with infrared thermography can be very useful for gaining insight into thermal phenomena such as thermal bridging and natural convection. But as a research tool it is even more valuable to extract numerical data from the images and produce maps of surface temperature. This is called quantitative infrared thermography and can be very challenging. We have developed procedures that allow collecting and processing the infrared data to enable obtaining results that are as accurate as possible. The main difficulties in using infrared to measure temperature are correcting the measurement for reflected radiation and proper referencing of the relative radiometric measurement. Efforts are underway to develop standardized test procedures for using infrared to quantify surface temperatures in the types of thermal test chambers used to test building products. But for now, information on how we perform quantitative thermography is available in some of our technical papers. One of these papers presents temperature results for a series of insulated glazing units. This is an example of our goal to make available a database of surface temperatures results for various types of windows. These data sets are available for download at the link below. The data are for the warm side surface of various types of air-filled insulating glazing units subjected to ASHRAE winter design conditions and are similar to the graph below.

33

Causal Gene Network Inference from Genetical Genomics Experiments via Structural Equation Modeling.  

E-Print Network [OSTI]

??The goal of this research is to construct causal gene networks for genetical genomics experiments using expression Quantitative Trait Loci (eQTL) mapping and Structural Equation… (more)

Liu, Bing

2006-01-01T23:59:59.000Z

34

DIFFERENTIAL IMPACT OF SICKLE CELL TRAIT ON ...  

E-Print Network [OSTI]

877–898. DIFFERENTIAL IMPACT OF SICKLE CELL TRAIT ON. SYMPTOMATIC AND ASYMPTOMATIC MALARIA. Eunha Shim. Department of Epidemiology.

2012-10-11T23:59:59.000Z

35

Scaling up Classical Genetics to Thousands of Molecular Traits: Promises and Challenges.  

E-Print Network [OSTI]

. Tesson1, *, Yang Li1, *, Rainer Breitling1 , Ritsert C. Jansen1§ Introduction Genetical genomics (Jansen 2003; Jansen and Nap 2001) uses classical genetics approaches of Quantitative Trait Locus (QTL) mapping contribution, § corresponding author, r.c.jansen@rug.nl 1 Groningen Bioinformatics Centre, University

Breitling, Rainer

36

Traits at Work: the design of a new trait-based stream library  

E-Print Network [OSTI]

Traits at Work: the design of a new trait-based stream library Published in Computer LanguagesINRIA-Futurs Bordeaux bINRIA-Lille Nord Europe, Adam Team, CNRS 8022 - LIFL/UTSL cIMEC, Kapeldreef 75, B-3001 Leuven patterns. This paper presents our work on designing and implementing a new trait-based stream library named

Paris-Sud XI, Université de

37

E-Print Network 3.0 - autosomal str loci Sample Search Results  

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

Proceedings of the 21st Summary: testing. Allele frequency data was available for 46 forensic autosomal STR loci from U.S. Caucasian... of autosomal STR loci for kinship...

38

Stellar loci I. Metallicity dependence and intrinsic widths  

E-Print Network [OSTI]

Stellar loci are widely used for selection of interesting outliers, reddening determinations, and calibrations. However, hitherto the dependence of stellar loci on metallicity has not been fully explored and their intrinsic widths are unclear. In this paper, by combining the spectroscopic and re-calibrated imaging data of the SDSS Stripe 82, we have built a large, clean sample of dwarf stars with accurate colors and well determined metallicities to investigate the metallicity dependence and intrinsic widths of the SDSS stellar loci. Typically, one dex decrease in metallicity causes 0.20 and 0.02 mag decrease in colors u-g and g-r, and 0.02 and 0.02 mag increase in colors r-i and i-z, respectively. The variations are larger for metal-rich stars than for metal-poor ones, and for F/G/K stars than for A/M ones. Using the sample, we have performed two dimensional polynomial fitting to the u-g, g-r, r-i, and i-z colors as a function of color g-i and metallicity [Fe/H]. The residuals, at the level of 0.029, 0.008, 0...

Yuan, Haibo; Xiang, Maosheng; Huang, Yang; Chen, Bingqiu

2014-01-01T23:59:59.000Z

39

ORIGINAL PAPER Fine mapping of fw3.2 controlling fruit weight in tomato  

E-Print Network [OSTI]

ORIGINAL PAPER Fine mapping of fw3.2 controlling fruit weight in tomato Na Zhang · Marin Talbot in the Solanaceae family. One of the key traits selected during domestication is fruit mass which is con- trolled by many quantitative trait loci. The fruit weight locus fw3.2 is one of the major loci responsible

van der Knaap, Esther

40

Genetic dissection of bioenerrgy traits in sorghum  

SciTech Connect (OSTI)

Specific Objectives: 1. To identify the gene(s) underlying a major QTL for stem sugar concentration located on chromosome 3. 2. To identify QTL for stem juice volume and stalk sugar concentration and to identify the underlying genes. 3. To classify 60 novel sorghum bmr mutants from the USDA TILLING population in allelic groups based on cell wall chemistry and allelism tests. 4. To select representative bmr mutants from each allelic group and selected NIR spectral mutants for their potential value as feedstock for ethanol production. 5. To clone and characterize those Bmr genes that represent loci other than Bmr12 and Bmr6 using a mapping and a candidate gene approach. Objective 1 The experiments for this objective are largely complete and the data have been analyzed. Data interpretation and follow-up experiments are still in progress. A manuscript is in preparation (Vermerris et al.; see publication list for full details). The main results are: 1) 16 cDNA libraries were prepared and sequenced at Cornell University. The libraries represent internode tissue and flag leaf tissue at booting, internode tissue and peduncle at soft-dough stage, from two plants per sampling time with the Rio allele for the QTL on chromosome 3, and two plants with the BTx623 allele on chromosome 3 (4 tissues x 2 genotypes x 2 replicates) 2) 480 million 86-nucleotide reads were generated from four lanes of Illuminia HiSeqII 3) 74% of the reads could be mapped to the sorghum transcriptome, indicative of good sequence quality 4) Of the 216 genes within the QTL, 17 genes were differentially expressed among plants with and without the Rio QTL. None of these 17 genes had obvious roles in sucrose metabolism 5) Clustering algorithms identified a group of 721 co-expressed genes. One of these genes is a sucrose synthase gene. This cluster also contains 10 genes from the QTL. 6) Among these co-expressed genes are regulatory genes for which knock-out lines in Arabidopsis have been obtained. Analysis of these lines is in progress. Objective 2 The experiments from this objective have been completed and the data were published in the journal Crop Science by Felderhoff et al. (2012). A second publication by Felderhoff et al. is in progress (see publication list for full details). The experiments were based on a mapping population derived from the sweet sorghum 'Rio' and the dry-stalk grain sorghum BTx3197. The main findings were: 1) The apparent juiciness of the sorghum stalk, based on the appearance of a cut stem surface (moist vs. pithy), is not representative of the moisture content of the stalk. This was surprising, as pithy stalks have been associated with low moisture content. This means that in order to assess 'juiciness', a different evaluation needs to be used, for example by removing juice with a roller press or by measuring the difference in mass between a fresh and dried stalk segment. 2) A total of five QTLs associated with juice volume (corrected for height) or moisture content were identified, but not all QTLs were detected in all environments, providing evidence for genotype x environment interactions. This finding complicates breeding for juice volume using marker-assisted selection. 3) The QTL for sugar concentration identified on chromosome 3, and the subject of Objective 1, was confirmed in this mapping population, but unlike in previous studies (Murray et al., 2008), the presence of this QTL was associated with negative impacts on agronomic performance (fresh and dry biomass yield, juice yield). Consequently, introgression of the Brix QTL from Rio as part of a commercial breeding program will require monitoring of the precise impacts of this QTL on agronomic performance. 4) The absence of dominance effects for the Brix trait (= sugar concentration) indicated that Brix must be high in both parents to produce high Brix in hybrids. This means an extra constraint on the development of hybrid parents. With the results from Objective 1, the selection of progeny containing favorable alleles for sugar concentration is expected to be more efficient.

Vermerris, Wilfred; Kresovich, Stephen; Murray, Seth; Pedersen, Jeffery; Rooney, William; Sattler, Scott.

2012-06-15T23:59:59.000Z

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


41

AN EXTENDED NICHOLS CHART WITH CONSTANT MAGNITUDE LOCI OF SENSITIVITY AND  

E-Print Network [OSTI]

AN EXTENDED NICHOLS CHART WITH CONSTANT MAGNITUDE LOCI OF SENSITIVITY AND COMPLEMENTARY SENSITIVITY chart) and constant magnitude loci MS of |S(j)|. While the for- mer are part of standard methodologies the complementary sensitivity and sensitivity functions. In order to handle such resonance peak specifications

Regruto, Diego

42

FINDING NEEDLES IN THE HAYSTACK: SINGLE COPY MICROSATELLITE LOCI FOR AEDES JAPONICUS (DIPTERA: CULICIDAE)  

E-Print Network [OSTI]

). In July 2004, Ae. j. japonicus were collected on the Island of Hawaii (Burham Larish L, personal of repetitive DNA in these species. We isolated single-copy DNA from Ae. j. japonicus and then used a standard microsatellite loci that were tested in American populations of Ae. j. japonicus. These loci were also found

43

Try-A Global Database of Plant Traits  

SciTech Connect (OSTI)

Plant traits the morphological, anatomical, physiological, biochemical and phenological characteristics of plants and their organs determine how primary producers respond to environmental factors, affect other trophic levels, influence ecosystem processes and services and provide a link from species richness to ecosystem functional diversity. Trait data thus represent the raw material for a wide range of research from evolutionary biology, community and functional ecology to biogeography. Here we present the global database initiative named TRY, which has united a wide range of the plant trait research community worldwide and gained an unprecedented buy-in of trait data: so far 93 trait databases have been contributed. The data repository currently contains almost three million trait entries for 69 000 out of the world s 300 000 plant species, with a focus on 52 groups of traits characterizing the vegetative and regeneration stages of the plant life cycle, including growth, dispersal, establishment and persistence. A first data analysis shows that most plant traits are approximately log-normally distributed, with widely differing ranges of variation across traits. Most trait variation is between species (interspecific), but significant intraspecific variation is also documented, up to 40% of the overall variation. Plant functional types (PFTs), as commonly used in vegetation models, capture a substantial fraction of the observed variation but for several traits most variation occurs within PFTs, up to 75% of the overall variation. In the context of vegetation models these traits would better be represented by state variables rather than fixed parameter values. The improved availability of plant trait data in the unified global database is expected to support a paradigm shift from species to trait-based ecology, offer new opportunities for synthetic plant trait research and enable a more realistic and empirically grounded representation of terrestrial vegetation in Earth system models.

Thornton, Peter E [ORNL

2011-01-01T23:59:59.000Z

44

Anonymous nuclear loci in non-model organisms: making the most of high-throughput genome surveys  

Science Journals Connector (OSTI)

......de novo and anonymous nuclear loci (ANL) are proving...produce robust multilocus datasets. Results: By successively...129-142. Anonymous nuclear loci in non-model...de novo and anonymous nuclear loci (ANL) are proving...produce robust multilocus datasets. RESULTS: By successively......

Terry Bertozzi; Kate L. Sanders; Mark J. Sistrom; Michael G. Gardner

2012-07-15T23:59:59.000Z

45

A STRATEGY TO IDENTIFY DOMINANT POINT MUTANT MODIFIERS OF A QUANTITATIVE TRAIT  

E-Print Network [OSTI]

Facility, Biotechnology Center, University of Wisconsin ­ Madison, Madison, Wisconsin, USA. Keywords; and The Cancer Genome Atlas. 1 G3: Genes|Genomes|Genetics Early Online, published on April 21, 2014 as doi:10 Genome Atlas (Vogelstein et al. 2013) and the Cancer Epigenome Project (Beck et al. 2012) to docu

Newton, Michael

46

Genomic architecture of risk loci associated with autoimmunity (7th Annual SFAF Meeting, 2012)  

ScienceCinema (OSTI)

Ward Wakeland on "Genomic architecture of risk loci associated with autoimmunity" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

Wakeland, Ward [University of Texas Southwestern Medical Center

2013-02-11T23:59:59.000Z

47

Genetic diversity at RFLP loci in an Oregon Septoria tritici population  

E-Print Network [OSTI]

GENETIC DIVERSITY AT RFLP LOCI IN AN OREGON SEPTORIA TRITICI POPULATION A Thesis JEFFREY MICHAEL BOEGER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 1992 Major Subject: Plant Pathology GENETIC DIVERSITY AT RFLP LOCI IN AN OREGON SEPTORIA TRITICI POPULATION A Thesis JEFFREY MICHAEL BOEGER Approved as to style and content by: Bruce McDonald (Chair of Committee) Charles Kener...

Boeger, Jeffrey Michael

2012-06-07T23:59:59.000Z

48

Identification of genetic loci and transcriptional networks that confer virulence and survival of Brucella melitensis  

E-Print Network [OSTI]

IDENTIFICATION OF GENETIC LOCI AND TRANSCRIPTIONAL NETWORKS THAT CONFER SURVIVAL AND VIRULENCE OF BRUCELLA MELITENSIS A Dissertation by JENNI NICHOLE WEEKS Submitted to the Office of Graduate Studies of Texas A&M University... in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY August 2008 Major Subject: Genetics IDENTIFICATION OF GENETIC LOCI AND TRANSCRIPTIONAL NETWORKS THAT CONFER SURVIVAL AND VIRULENCE OF BRUCELLA MELITENSIS...

Weeks, Jenni Nichole

2009-05-15T23:59:59.000Z

49

Frontiers In Quantitative  

E-Print Network [OSTI]

-in-Publication Data: ISBN-13: 978-0-470-29292-1 Printed in the United States of America 10 9 8 7 6 5 4 3 2 1 iv #12;P1 the United States at (317) 572-3993 or fax (317) 572-4002. Wiley also publishes its books in a varietyFrontiers In Quantitative FinanceVolatility and Credit Risk Modeling RAMA CONT #12;P1: a/b P2: c

Cont, Rama

50

A dyadic-interactional perspective of implicit trait policies  

E-Print Network [OSTI]

Trait Policy IV Independent Variable MLM Multilevel Modeling OLS Ordinary Least Squares REML Restricted Estimation Maximum Likelihood SJT Situational Judgment Test VC Variance Components vii TABLE OF CONTENTS Page ABSTRACT... Trait Policy IV Independent Variable MLM Multilevel Modeling OLS Ordinary Least Squares REML Restricted Estimation Maximum Likelihood SJT Situational Judgment Test VC Variance Components vii TABLE OF CONTENTS Page ABSTRACT...

Benzer, Justin Kane

2009-05-15T23:59:59.000Z

51

E-Print Network 3.0 - adjustment testing trait Sample Search...  

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

testing trait Search Powered by Explorit Topic List Advanced Search Sample search results for: adjustment testing trait Page: << < 1 2 3 4 5 > >> 1 cell trait? Know your sickle...

52

Images in Emergency Medicine: Splenic Infarction Due to Sickle Cell Trait after Climbing Mt. Fuji  

E-Print Network [OSTI]

in 2 white men with sickle cell trait. Ann Emerg Med. 1999;altitude with unrecognized sickle cell trait: splenectomy isan African-American male with sickle cell trait. Am J Hemat.

Morishima, Aki; Schofer, Joel M.; Pelletier, Pierre; McKee, James M.

2008-01-01T23:59:59.000Z

53

E-Print Network 3.0 - affects life-history traits Sample Search...  

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

These traits provide a mechanistic explanation for how... . Morphological and life-history traits were reported with intermediate frequency. The database, aside from...

54

Biochemical and immunological mechanisms by which sickle cell trait protects against malaria  

E-Print Network [OSTI]

mechanisms by which sickle cell trait protects againstagainst malaria in the sickle- cell trait. Lancet 1970, 1:Erythrocytic mechanism of sickle cell resistance to malaria.

Gong, Lauren; Parikh, Sunil; Rosenthal, Philip J; Greenhouse, Bryan

2013-01-01T23:59:59.000Z

55

A phylogeny of Anisophylleaceae based on six nuclear and plastid loci: Ancient disjunctions and recent dispersal between South  

E-Print Network [OSTI]

A phylogeny of Anisophylleaceae based on six nuclear and plastid loci: Ancient disjunctions and recent dispersal between South America, Africa, and Asia Li-Bing Zhang a,b,*, Mark P. Simmons c , Susanne a phylogeny based on six nuclear and plastid loci sequenced for 15 species representing the four genera

Renner, Susanne

56

Microhaplotype loci are a powerful new type of forensic marker K.K. Kidd a,  

E-Print Network [OSTI]

Microhaplotype loci are a powerful new type of forensic marker K.K. Kidd a, *, A.J. Pakstis a , W with much shorter DNA fragments, such as those in degraded forensic samples. In previous work, we have shown forensic STRPs. The new sequencing technologies are now making a new type of forensic marker possible

Kidd, Kenneth

57

Variability of perceptual multistability: from brain state to individual trait  

Science Journals Connector (OSTI)

...Variability of perceptual multistability: from brain state to individual trait Andreas Kleinschmidt...multistability to demonstrate that the brain constructively interprets sensory input...is related to the context of the current brain state into which the processing of external...

2012-01-01T23:59:59.000Z

58

Heritability of reproductive fitness traits in a human population  

Science Journals Connector (OSTI)

...architecture of fitness and nonfitness traits: Empirical patterns and development of ideas . Heredity 83 : 103 – 109 . 24 Saifi GM Chandra HS ( 1999 ) An apparent excess of sex- and reproduction-related genes on the human X chromosome . Proc Biol Sci...

Gülüm Kosova; Mark Abney; Carole Ober

2010-01-01T23:59:59.000Z

59

Molecular systematics and phylogeography of the dusky dolphin (Lagenorhynchus obscurus) derived from nuclear and mitochondrial loci  

E-Print Network [OSTI]

: _______________________________ _______________________________ Rodney L. Honeycutt Jim Woolley (Co-Chair of Committee) (Member) _______________________________ _______________________________ Bernd W?rsig Lee Fitzgerald (Co-Chair of Committee... and Phylogeography of Lagenorhynchus obscurus Derived from Nuclear and Mitochondrial Loci. (December 2004) April Dawn Harlin, B.S., University of California at Davis; M.S., Texas A&M University Co-Chairs of Advisory Committee: Dr. Rodney L. Honeycutt Dr...

Harlin, April Dawn

2006-04-12T23:59:59.000Z

60

Phenotypic Characterization of Feed Efficiency and Feeding Behavior Traits in Performance Tested Bulls Fed a Corn Silage-Based Diet  

E-Print Network [OSTI]

Objectives of this study were to characterize feed efficiency traits and examine phenotypic relationships with feeding behavior traits in bulls. Performance, feed intake and feeding behavior traits were measured in bulls (n = 5,165) representing 2...

Moreno Rajo, Jose Gilberto

2013-01-14T23:59:59.000Z

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


61

Genetic dissection of a model complex trait using the Drosophila Synthetic Population Resource  

E-Print Network [OSTI]

Genetic dissection of complex, polygenic trait variation is a key goal of medical and evolutionary genetics. Attempts to identify genetic variants underlying complex traits have been plagued by low mapping resolution in ...

King, Elizabeth G.; Merkes, Chris M.; McNeil, Casey Lee; Hoofer, Steven R.; Sen, Saunak; Long, Anthony D.; Macdonald, Stuart J.

2012-08-22T23:59:59.000Z

62

Mode of Inheritance of Primary Metabolic Traits in Tomato  

Science Journals Connector (OSTI)

...since many attempts to metabolically engineer plants to produce elevated levels of a...M. (2002). QTL analysis of fruit quality in fresh market tomato: A few chromosome...trait locus (QTLs) for organoleptic quality in tomato. Theor. Appl. Genet. 112...

Nicolas Schauer; Yaniv Semel; Ilse Balbo; Matthias Steinfath; Dirk Repsilber; Joachim Selbig; Tzili Pleban; Dani Zamir; Alisdair R. Fernie

2008-03-25T23:59:59.000Z

63

REVIEW ARTICLE A trait-based approach to comparative functional  

E-Print Network [OSTI]

affect those ecosystem properties depends on the abundance of this species in the community. Assessing of this approach is that it enables us to assess the interactions between organisms and their environment, community assembly and ecosystem functioning. The trait concept will be first defined, before presenting

Boyer, Edmond

64

Variation in ecogeographical traits of pecan cultivars and provenances  

E-Print Network [OSTI]

and provenances (i.e., the area of origin of seed). An assessment of leaf anatomical traits of pecan cultivars (Pawnee, Mohawk and Starking Hardy Giant) collected from three locations (Tifton, GA., Chetopa, KS., and Stillwater, OK.) was conducted to provide...

Sagaram, Madhulika

2009-05-15T23:59:59.000Z

65

Reading Difficulty in Adults with Intellectual Disabilities: Analysis with a Hierarchical Latent Trait Model  

E-Print Network [OSTI]

Trait Model Martin Jansche Google, Inc. New York, NY, USA jansche@acm.org Lijun Feng City University

Tomkins, Andrew

66

QUANTITATIVE STABILITY ANALYSIS OF STOCHASTIC ...  

E-Print Network [OSTI]

? is said to be lower semi-continuous (lsc for short) at Żx ? X if and only if ..... It is also known as a distance of probability measures having ?-structure, see [45] ...... In order to compare the previous novel stability result for two-stage models ...... Quantitative stability in stochastic programming: The method of probability metrics ...

2013-07-14T23:59:59.000Z

67

The Gene Controlling the Indole Glucosinolate Modifier1 Quantitative Trait Locus Alters Indole Glucosinolate Structures and Aphid Resistance in Arabidopsis  

Science Journals Connector (OSTI)

...insertion lines. This observation led us to postulate that CYP81F2...comparable to Ei-2. This led us to suspect that additional...supplied by NH 360 FLX Sunlux ACE bulbs with an intensity of 200 mumol...scanned using the Agilent G2565BA fluorescent microarray scanner. Image processing...

Marina Pfalz; Heiko Vogel; Juergen Kroymann

2009-03-17T23:59:59.000Z

68

Ecological immunogenetics of life-history traits in a model amphibian  

Science Journals Connector (OSTI)

...function of MHC class I and class II peptide-binding...earlier and suffered greater mortality when exposed...water, in both (a) class I and (b) class II loci. Lines represent...polynomial regressions. Greater developmental stage indicates...

2012-01-01T23:59:59.000Z

69

Quantitative Assessment of Appropriate Technology  

Science Journals Connector (OSTI)

Abstract Economist Dr. E.F. Schumacher posited the concept of “Intermediate Technology” in his 1973 book Small is Beautiful, catalyzing the explosion of the appropriate technology (AT) movement. But how does one gauge the “appropriateness” of a technology? Quantitative assessment of AT can benefit sustainable community development (SCD) practitioners by way of decision-support and risk mitigation. The following research constructs a generalizable metric for quantitative assessment of AT, and develops a systematic process for its deployment. Forty-nine independent, emergent indicators of appropriateness were identified from a literature meta-analysis. The most prevalent indicators were as follows: community input, affordability, autonomy, transferability, community control, scalability, local availability of raw materials, and adaptability. Using these, a quantitative assessment tool was developed, called the Appropriate Technology Assessment Tool (ATAT). ATAT employs multi-criteria decision analysis (MCDA) methods to rank AT alternatives. In this way, inputs are aggregated using a weighted- sum method, giving the composite Appropriateness Index, (Ali). Using VBA coding, the author built ATAT via a simple form populated by the identified indicators. The form automates all necessary calculations, facilitating empirically rigorous quantitative assessment of AT by non-technical SCD workers. AT is only as appropriate as beneficiaries deem. A participatory research approach requires community stakeholders to rank preferred criteria for AT, and rate alternatives against the chosen criteria. This approach makes the tool customizable to local conditions. Using the Mini-Delphi Method, stakeholder opinions translate to ATAT inputs. A local case in the Westwood neighborhood of Denver, Colorado is examined to test ATAT efficacy and process viability. Prior to this research, University of Colorado graduate students partnered with local 501(c)3 Revision International to reduce winter heating costs in Westwood using a solar furnace that locals dubbed “EZ Heat”. ATAT quantified the appropriateness of EZ Heat as Ali = 4.2. This score lends empirical support to the AT's a priori deterministic selection. ATAT is designed to be free and accessible via Internet, and the author is investigating the potential of a mobile application. SCD and other community development practitioners often work in remote areas, and a mobile ATAT application will make the tool more useful.

A. Michael Bauer; Aaron Brown

2014-01-01T23:59:59.000Z

70

The DSM-5 Dimensional Trait Model and the Five Factor Model.  

E-Print Network [OSTI]

??The current thesis tests empirically the relationship of the dimensional trait model proposed for the fifth edition of the American Psychiatric Association’s (APA) Diagnostic and… (more)

Gore, Whitney L

2013-01-01T23:59:59.000Z

71

Functional trait expression of grassland species shift with short- and long-term nutrient additions  

Science Journals Connector (OSTI)

Humans are altering nutrient availability worldwide, likely affecting plant trait expression, with consequences for community composition and ecosystem function. Here, we examined the responses of plant specie...

Kimberly J. La Pierre; Melinda D. Smith

2014-12-01T23:59:59.000Z

72

E-Print Network 3.0 - amylose content trait Sample Search Results  

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

by Explorit Topic List Advanced Search Sample search results for: amylose content trait Page: << < 1 2 3 4 5 > >> 1 Euphytica 135: 345353, 2004. 2004 Kluwer Academic Publishers....

73

Quantitative Analysis of Station Hydrogen  

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

Analysis of Station Analysis of Station Hydrogen * Role of ENAA (Engineering Advancement Association of Japan) - To manage the construction and operation of hydrogen stations in national project, JHFC Project - To act as secretariat of ISO/TC197 (Hydrogen technologies) committee of Japan Kazuo Koseki Chief Secretary of ISO/TC197 of Japan ENAA Yokohama Daikoku Station (Desulfurized Gasoline) Yokohama Asahi Station (Naphtha) Senju Station (LPG) Kawasaki Station (Methanol) Yokohama Asahi Station Naphtha PSA Compressor Storage Tanks Dispenser Reformer Buffer Tank 25 MPa 35 MPa 1073 K 0.8 MPa Inlet : 0.6 MPa Outlet : 40 MPa Vent Stack 40 MPa Result of Quantitative Analysis Concentration. vol.ppm Min.Detect Analysis Impurity Gasoline Naphtha LPG Methanol Conc. Method CO 0.05 0.06 0.02 0.06 0.01 GC-FID

74

Heterogeneity of distribution for growth traits between Angus and Brahman backcross embryo transfer cattle  

E-Print Network [OSTI]

was significant for all traits and SEX was significant for all traits excluding FG. Birth year and birth season were significant effects for WW, GG, FG, and SW. Classes set according to industry standards were BW (4 kg increments), WW (50 kg increments), GG (40 kg...

Cleere, Jason James

2012-06-07T23:59:59.000Z

75

Covariance of phenotypically plastic traits induces an adaptive shift in host selection behaviour  

E-Print Network [OSTI]

Covariance of phenotypically plastic traits induces an adaptive shift in host selection behaviour efficiency. In the present study, we investigated covariance of two plastic traits--size at pupation and host; evolution 1. INTRODUCTION Phenotypic plasticity is defined as the ability of an organism to change its

Dukas, Reuven

76

ForSim: a tool for exploring the genetic architecture of complex traits with controlled truth  

Science Journals Connector (OSTI)

......architecture of complex traits with controlled truth Brian W. Lambert 1 * Joseph D. Terwilliger...evolutionary simulation tool for exploring the consequences of evolution by phenotype, whereby demographic...architecture of complex traits with controlled truth. | Many important problems in biology......

Brian W. Lambert; Joseph D. Terwilliger; Kenneth M. Weiss

2008-08-15T23:59:59.000Z

77

Geothermal Reconnaissance From Quantitative Analysis Of Thermal...  

Open Energy Info (EERE)

Geothermal Reconnaissance From Quantitative Analysis Of Thermal Infrared Imagery Jump to: navigation, search OpenEI Reference LibraryAdd to library Reference: Geothermal...

78

Report on Solar Pool Heating Quantitative Survey  

SciTech Connect (OSTI)

This report details the results of a quantitative research study undertaken to better understand the marketplace for solar pool-heating systems from the perspective of residential pool owners.

Synapse Infusion Group, Inc. (Westlake Village, California)

1999-05-06T23:59:59.000Z

79

Report on Solar Water Heating Quantitative Survey  

SciTech Connect (OSTI)

This report details the results of a quantitative research study undertaken to better understand the marketplace for solar water-heating systems from the perspective of home builders, architects, and home buyers.

Focus Marketing Services

1999-05-06T23:59:59.000Z

80

ORIGINAL PAPER Sonali D. Gandhi Adam F. Heesacker  

E-Print Network [OSTI]

Bradford Steven J. Knapp The self-incompatibility locus (S) and quantitative trait loci for self.) are self-incompatible and have deep seed dormancy, whereas modern cultivars, inbreds, and hybrids are self produced from a cross between an elite, self- pollinated, nondormant inbred line (NMS373) and a wild, self-incompatible

Bradford, Kent

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


81

Genetic Control and Evolution of Sesquiterpene Biosynthesis in Lycopersicon esculentum and L. hirsutum  

Science Journals Connector (OSTI)

...the 98T284 population based on single-point quantitative trait loci analysis, we concluded...synthases provide an excellent starting point for studying the individual effects of...Christenson P.A. Willis B.J. East Indian sandalwood oilStereoselective synthesis...

Rutger S. van der Hoeven; Antonio J. Monforte; David Breeden; Steven D. Tanksley; John C. Steffens

82

J. AMER. SOC. HORT. SCI. 134(1):7787. 2009. Tomato Fruit Shape Analysis Using Morphometric  

E-Print Network [OSTI]

J. AMER. SOC. HORT. SCI. 134(1):77­87. 2009. Tomato Fruit Shape Analysis Using Morphometric of two methods in the detection of quantitative trait loci (QTL) controlling fruit morphology in three uses fruit morphology attributes such as fruit shape index, blockiness, pear shape, indentation area

van der Knaap, Esther

83

Gene Expression Profiles during the Initial Phase of Salt Stress in Rice  

Science Journals Connector (OSTI)

...and photoperiodic flowering by the Arabidopsis GIGANTEA gene Price A.H. Young E.M. Tomos A.D. Quantitative trait loci...three rice sucrose synthase genes Yang S.F. Hoffman N.E. Ethylene biosynthesis and its regulation in higher plants Yeo A.R...

Shinji Kawasaki; Chris Borchert; Michael Deyholos; Hong Wang; Susan Brazille; Kiyoshi Kawai; David Galbraith; Hans J. Bohnert

84

Effect of pasteurization and season on the sensorial and rheological traits of Mexican Chihuahua cheese  

Science Journals Connector (OSTI)

The seasonal changes in the flavors and textures (sensorial and rheological traits) of young Mexican Chihuahua cheese made with either raw or pasteurized ... of the cheese. Four selected brands of Chihuahua chees...

Diane L. Van Hekken; Mary Anne Drake; Michael H. Tunick…

2008-07-01T23:59:59.000Z

85

A cytochrome P450 regulates a domestication trait in cultivated tomato  

E-Print Network [OSTI]

Knaapa,3 a Department of Horticulture and Crop Science, The Ohio State University/Ohio Agricultural light on the molecular basis of fruit mass, a key domestication trait in tomato and other fruit

van der Knaap, Esther

86

Effects of chronological age and physiological maturity on palatability traits of ovine carcasses  

E-Print Network [OSTI]

EFFECTS OF CHRONOLOGICAL AGE AND PHYSIOLOGICAL MATURITY ON PALATABILITY TRAITS OF OVINE CARCASSES A Thesis by BOBBY RAY STOUT Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree... of Committee) ( -Chairman o Committee) (Head of Department) (Member) December 1914 ABSTRACT Effects of Chronological Age and Physiological Maturity on Palatability Traits of Ovine Carcasses. (December 1974) Bobby Ray Stout, B. S. , Texas A&M University...

Stout, Bobby Ray

1974-01-01T23:59:59.000Z

87

UNiquant, a Program for Quantitative Proteomics Analysis Using...  

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

UNiquant, a Program for Quantitative Proteomics Analysis Using Stable Isotope Labeling. UNiquant, a Program for Quantitative Proteomics Analysis Using Stable Isotope Labeling....

88

Near quantitative agreement of model free DFT- MD predictions...  

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

Near quantitative agreement of model free DFT- MD predictions with XAFS observations of the hydration structure of highly Near quantitative agreement of model free DFT- MD...

89

Category:Quantitative Incentives | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Category Edit History Facebook icon Twitter icon » Category:Quantitative Incentives Jump to: navigation, search Category for Quantitative Incentives. Pages in category "Quantitative Incentives" The following 200 pages are in this category, out of 461 total. (previous 200) (next 200) 3 30% Business Tax Credit for Solar (Vermont) A Advanced Energy Tax Credit (Corporate) (New Mexico) Advanced Energy Tax Credit (Personal) (New Mexico) AEP Ohio - Renewable Energy Credit (REC) Purchase Program (Ohio) AEP Ohio - Renewable Energy Technology Program (Ohio) AEP SWEPCO - SMART Source Solar PV Program (Texas) AEP Texas Central Company - SMART Source Solar PV Rebate Program (Texas)

90

The Cost of Bearing a Sword: Locomotor Costs and Compensations in Relation to a Sexually Selected Trait in Xiphophorus  

E-Print Network [OSTI]

Evaluating performance costs of sexually selected traits.result in a locomotor cost. References Allen, B. J. &Levinton, J. S. (2006). Costs of bearing a sexually selected

Oufiero, Christopher E.

2010-01-01T23:59:59.000Z

91

Quantitative multiplex detection of pathogen biomarkers  

DOE Patents [OSTI]

The present invention addresses the simultaneous detection and quantitative measurement of multiple biomolecules, e.g., pathogen biomarkers through either a sandwich assay approach or a lipid insertion approach. The invention can further employ a multichannel, structure with multi-sensor elements per channel.

Mukundan, Harshini; Xie, Hongzhi; Swanson, Basil I; Martinez, Jennifer; Grace, Wynne K

2014-10-14T23:59:59.000Z

92

Parallelized Interpolation: A Quantitative Assessment Scott Blaha  

E-Print Network [OSTI]

Parallelized Interpolation: A Quantitative Assessment Scott Blaha Swarthmore College Mustafa Paksoy- cent I/O-efficient point cloud to DEM algorithm (0), from 52% to 86% of running time was spent inter-off in interpolation is quality (e.g. representativeness) of the resulting DEM ver- sus the computational complexity

Danner, Andrew

93

Applying Quantitative Marketing Techniques to the Internet  

E-Print Network [OSTI]

. Blattberg and Deighton [1991] laid out a good framework for Internet marketing in their articleApplying Quantitative Marketing Techniques to the Internet by Alan L. Montgomery Carnegie Mellon with clickstream data. I illustrate these four modeling techniques and discuss their potential for solving Internet

Faloutsos, Christos

94

Digital Compressive Quantitation and Hyperspectral Imaging  

E-Print Network [OSTI]

Jun 20, 2013 ... produced using multivariate curve resolution (MCR) to pre-process mixture training spectra, thus facilitating the quantitation of mixtures even when no pure chemical component .... simulated annealing to ?nd the rotation matrix elements that ... the image registration was also performed in Matlab R2012a.

2013-07-25T23:59:59.000Z

95

DNA DAMAGE QUANTITATION BY ALKALINE GEL ELECTROPHORESIS.  

SciTech Connect (OSTI)

Physical and chemical agents in the environment, those used in clinical applications, or encountered during recreational exposures to sunlight, induce damages in DNA. Understanding the biological impact of these agents requires quantitation of the levels of such damages in laboratory test systems as well as in field or clinical samples. Alkaline gel electrophoresis provides a sensitive (down to {approx} a few lesions/5Mb), rapid method of direct quantitation of a wide variety of DNA damages in nanogram quantities of non-radioactive DNAs from laboratory, field, or clinical specimens, including higher plants and animals. This method stems from velocity sedimentation studies of DNA populations, and from the simple methods of agarose gel electrophoresis. Our laboratories have developed quantitative agarose gel methods, analytical descriptions of DNA migration during electrophoresis on agarose gels (1-6), and electronic imaging for accurate determinations of DNA mass (7-9). Although all these components improve sensitivity and throughput of large numbers of samples (7,8,10), a simple version using only standard molecular biology equipment allows routine analysis of DNA damages at moderate frequencies. We present here a description of the methods, as well as a brief description of the underlying principles, required for a simplified approach to quantitation of DNA damages by alkaline gel electrophoresis.

SUTHERLAND,B.M.; BENNETT,P.V.; SUTHERLAND, J.C.

2004-03-24T23:59:59.000Z

96

Quantitative organic vapor-particle sampler  

DOE Patents [OSTI]

A quantitative organic vapor-particle sampler for sampling semi-volatile organic gases and particulate components. A semi-volatile organic reversible gas sorbent macroreticular resin agglomerates of randomly packed microspheres with the continuous porous structure of particles ranging in size between 0.05-10 .mu.m for use in an integrated diffusion vapor-particle sampler.

Gundel, Lara (Berkeley, CA); Daisey, Joan M. (Walnut Creek, CA); Stevens, Robert K. (Cary, NC)

1998-01-01T23:59:59.000Z

97

The role of the dioxin-responsive element cluster between the Cyp1a1 and Cyp1a2 loci in aryl  

E-Print Network [OSTI]

The role of the dioxin-responsive element cluster between the Cyp1a1 and Cyp1a2 loci in aryl,3,7,8- tetrachlorodibenzo-p-dioxin (dioxin) hepatotoxicity, regulation of xenobiotic metabolism, and hepatovascular development. Each of these processes appears to be dependent on binding of the AHR to dioxin- responsive

Bradfield, Christopher A.

98

Conserved genomic structure of the Cyp1a1 and Cyp1a2 loci and their dioxin responsive elements cluster  

E-Print Network [OSTI]

Review Conserved genomic structure of the Cyp1a1 and Cyp1a2 loci and their dioxin responsivea2 DRE AHR Dioxin a b s t r a c t A thorough DNA sequence analysis reveals that the mouse Cyp1a11_1a2 junction, eight consensus dioxin responsive elements (DREs) are present and seven of the eight

Bradfield, Christopher A.

99

Effect of a "major" dwarfing gene on grain yield and other agronomic traits in oat  

E-Print Network [OSTI]

EFFECT OF A "MAJOR" DWARFING GENE ON GRAIN YIELD AND OTHER AGRONOMIC TRAITS IN OAT A Thesis by JULIANO LUIZ DE ALMEIDA Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE August 1994 Major Subject: Plant Breeding EFFECT OF A "MAJOR" DWARFING GENE ON GRAIN YIELD AND OTHER AGRONOMIC TRAITS IN OAT A Thesis by JULIANO LUIZ DE ALMEIDA Submitted to Texas A&M University in partial fulfillment...

Almeida, Juliano Luiz de

2012-06-07T23:59:59.000Z

100

Evaluation of ultrasound and other sources of information to predict beef carcass traits and final carcass value  

E-Print Network [OSTI]

traits at each scan session. MallowÂ?s CP was used to select a model that best described each carcass trait. C analyses (GLM) utilized variables from A and B analyses combined plus ranch. D analyses (GLM) included variables from C analyses plus sire...

Dean, Dustin Tyler

2006-08-16T23:59:59.000Z

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


101

Investigating the Influence of Geometrical Traits on Light Interception Efficiency of Apple Trees: a Modelling Study with MAppleT  

E-Print Network [OSTI]

Investigating the Influence of Geometrical Traits on Light Interception Efficiency of Apple Trees-structural plant model that has been built for simulating architectural development of apple trees. It has depends on geometrical traits. The purpose of this research is to investigate the influence of apple trees

Paris-Sud XI, Université de

102

Quantitative Assessment of Robot-generated Maps  

SciTech Connect (OSTI)

Mobile robotic mapping is now considered to be a sufficiently mature field with demonstrated successes in various domains. While much progress has been made in the development of computationally efficient and consistent mapping schemes, it is still murky, at best, on how these maps can be evaluated. We are motivated by the absence of an accepted standard for quantitatively measuring the performance of robotic mapping systems against user-defined requirements. It is our belief that the development of standardized methods for quantitatively evaluating existing robotic technologies will improve the utility of mobile robots in already established application areas, such as vacuum cleaning, robot surveillance, and bomb disposal. This approach will also enable the proliferation and acceptance of such technologies in emerging markets. This chapter summarizes our preliminary efforts by bringing together the research community towards addressing this important problem which has ramifications not only from researchers perspective but also from consumers, robot manufacturers, and developers viewpoints.

Scrapper, Chris [National Institute of Standards and Technology (NIST); Madhavan, Raj [ORNL; Lakaemper, Rolf [Temple University

2009-01-01T23:59:59.000Z

103

Quantitative maps of groundwater resources in Africa  

Science Journals Connector (OSTI)

In Africa, groundwater is the major source of drinking water and its use for irrigation is forecast to increase substantially to combat growing food insecurity. Despite this, there is little quantitative information on groundwater resources in Africa, and groundwater storage is consequently omitted from assessments of freshwater availability. Here we present the first quantitative continent-wide maps of aquifer storage and potential borehole yields in Africa based on an extensive review of available maps, publications and data. We estimate total groundwater storage in Africa to be 0.66 million km3 (0.36–1.75 million km3). Not all of this groundwater storage is available for abstraction, but the estimated volume is more than 100 times estimates of annual renewable freshwater resources on Africa. Groundwater resources are unevenly distributed: the largest groundwater volumes are found in the large sedimentary aquifers in the North African countries Libya, Algeria, Egypt and Sudan. Nevertheless, for many African countries appropriately sited and constructed boreholes can support handpump abstraction (yields of 0.1–0.3 l s?1), and contain sufficient storage to sustain abstraction through inter-annual variations in recharge. The maps show further that the potential for higher yielding boreholes ( > 5 l s?1) is much more limited. Therefore, strategies for increasing irrigation or supplying water to rapidly urbanizing cities that are predicated on the widespread drilling of high yielding boreholes are likely to be unsuccessful. As groundwater is the largest and most widely distributed store of freshwater in Africa, the quantitative maps are intended to lead to more realistic assessments of water security and water stress, and to promote a more quantitative approach to mapping of groundwater resources at national and regional level.

A M MacDonald; H C Bonsor; B É Ó Dochartaigh; R G Taylor

2012-01-01T23:59:59.000Z

104

Quantitative determination of atmospheric hydroperoxyl radical  

DOE Patents [OSTI]

A method for the quantitative determination of atmospheric hydroperoxyl radical comprising: (a) contacting a liquid phase atmospheric sample with a chemiluminescent compound which luminesces on contact with hydroperoxyl radical; (b) determining luminescence intensity from the liquid phase atmospheric sample; and (c) comparing said luminescence intensity from the liquid phase atmospheric sample to a standard luminescence intensity for hydroperoxyl radical. An apparatus for automating the method is also included.

Springston, Stephen R. (Upton, NY); Lloyd, Judith (Westbury, NY); Zheng, Jun (Stony Brook, NY)

2007-10-23T23:59:59.000Z

105

Quantitatively Probing the Al Distribution in Zeolites  

SciTech Connect (OSTI)

The degree of substitution of Si4+ by Al3+ in the oxygen-terminated tetrahedra (Al T-sites) of zeolites determines the concentration of ion-exchange and Brřnsted acid sites. As the location of the tetrahedra and the associated subtle variations in bond angles influence the acid strength, quantitative information about Al T-sites in the framework is critical to rationalize catalytic properties and to design new catalysts. A quantitative analysis is reported that uses a combination of extended X-ray absorption fine structure (EXAFS) analysis and 27Al MAS NMR spectroscopy supported by DFT-based molecular dynamics simulations. To discriminate individual Al atoms, sets of ab initio EXAFS spectra for various T-sites are generated from DFT-based molecular dynamics simulations allowing quantitative treatment of the EXAFS single- and multiple-photoelectron scattering processes out to 3-4 atom shells surrounding the Al absorption center. It is observed that identical zeolite types show dramatically different Al-distributions. A preference of Al for T-sites that are part of one or more 4-member rings in the framework over those T-sites that are part of only 5- and 6-member rings in the HBEA150 sample has been determined from a combination of these methods. This work was supported by the U. S. Department of Energy (DOE), Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences & Biosciences.

Vjunov, Aleksei; Fulton, John L.; Huthwelker, Thomas; Pin, Sonia; Mei, Donghai; Schenter, Gregory K.; Govind, Niranjan; Camaioni, Donald M.; Hu, Jian Z.; Lercher, Johannes A.

2014-06-11T23:59:59.000Z

106

Effects of Gossypol Consumption on the Growth Traits of Red Deer Stags and Supplemental Melatonin for Advancement of Estrous Cycles in Red Deer Hinds.  

E-Print Network [OSTI]

Experiment I studied the effect of dietary gossypol (G) on antler and body growth traits of red deer stags, whereas Experiment II studied the effect of exogenous melatonin on female red deer reproductive traits. Specifically in Experiment I, thirty...

Morgan, Shane

2011-08-08T23:59:59.000Z

107

Exploring the evolutionary ecology of fungal endophytes in agricultural systems: using functional traits to reveal  

E-Print Network [OSTI]

M. Kohn3 1 Environmental Studies, University of California Santa Cruz, Santa Cruz, CA, USA 2, functional traits, fungal endophytes, Fusarium, maize. Correspondence Megan Saunders, Environmental Studies systems, where pair-wise host­fungus interactions and mechanisms of fungal­fungal competition have

Kohn, Linda M.

108

Trait-based approaches to conservation physiology: forecasting environmental change risks from the bottom up  

Science Journals Connector (OSTI)

...Such trait-based conservation physiology is illustrated...rising temperatures on water loss in ectotherms...especially to inform conservation biology. At times such...from the regional pool of individuals), a...performance (e.g. water-efficient organisms...

2012-01-01T23:59:59.000Z

109

Maladaptive changes in multiple traits caused by fishing: impediments to population recovery  

E-Print Network [OSTI]

LETTER Maladaptive changes in multiple traits caused by fishing: impediments to population recovery *Correspondence: E-mail: matthew.walsh@email.ucr.edu Abstract Some overharvested fish populations fail to recover even after considerable reductions in fishing pressure. The reasons are unclear but may involve genetic

Hameed, Sultan

110

A Hamilton-Jacobi approach for a model of population structured by space and trait  

E-Print Network [OSTI]

A Hamilton-Jacobi approach for a model of population structured by space and trait Emeric Bouin WKB ansatz, we prove that the propagation of the population in space can be de- scribed by a Hamilton, Hamilton-Jacobi equation, Spectral problem, Front propagation AMS Class. No: 45K05, 35B25, 49L25, 92D15, 35

Paris-Sud XI, Université de

111

Developing linkages between species traits and multiscaled environmental variation to explore vulnerability of stream benthic  

E-Print Network [OSTI]

, Fort Collins, Colorado 80523 USA 3 Center for Ecohydraulics Research, University of Idaho, Boise, Idaho is an emerging scientific challenge. Characterizing benthic species by biological attributes (traits of growing scientific and management interest. A challenge in doing so is to distinguish biological responses

Poff, N. LeRoy

112

Landscape heterogeneity as an ecological filter of species traits2 Author names and affiliations4  

E-Print Network [OSTI]

1 Title1 Landscape heterogeneity as an ecological filter of species traits2 3 Author names Oecologica 56 (2014) 19-26" DOI : 10.1016/j.actao.2014.01.004 #12;2 Abstract26 Landscape heterogeneity in conservation strategies. However, most landscape ecology studies28 measure gamma diversity of a single habitat

Boyer, Edmond

113

Parental crowding influences life-history traits in Locusta migratoria females  

E-Print Network [OSTI]

or behavioural life-history traits related to fluctuations in population density. How- ever, the potential of population densities with actively *Author for correspondence Fax: +61 (02) 9351 4119 E-mail: chapuimp environments. For instance, in Africa and Madagascar, marked numerical population increases at the beginning

114

What Insights Into the Developmental Traits of Urodeles Does the Study of Interspecific Hybrids Provide?  

E-Print Network [OSTI]

1 What Insights Into the Developmental Traits of Urodeles Does the Study of Interspecific Hybrids: srvoss@ucdavis.edu; hbshaffer@ucdavis.edu Running Head: Urodele Hybridization Key Words: Ambystoma; Triturus; hybridization; salamander; paedomorphosis #12;2 Table of Contents I. Introduction II. Population

Voss, S. Randal

115

The effects of shared peptides on protein quantitation in label...  

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

The effects of shared peptides on protein quantitation in label-free proteomics by LCMSMS . The effects of shared peptides on protein quantitation in label-free proteomics by LC...

116

Quantitative imaging of turbulent and reacting flows  

SciTech Connect (OSTI)

Quantitative digital imaging, using planar laser light scattering techniques is being developed for the analysis of turbulent and reacting flows. Quantitative image data, implying both a direct relation to flowfield variables as well as sufficient signal and spatial dynamic range, can be readily processed to yield two-dimensional distributions of flowfield scalars and in turn two-dimensional images of gradients and turbulence scales. Much of the development of imaging techniques to date has concentrated on understanding the requisite molecular spectroscopy and collision dynamics to be able to determine how flowfield variable information is encoded into the measured signal. From this standpoint the image is seen as a collection of single point measurements. The present effort aims at realizing necessary improvements in signal and spatial dynamic range, signal-to-noise ratio and spatial resolution in the imaging system as well as developing excitation/detection strategies which provide for a quantitative measure of particular flowfield scalars. The standard camera used for the study is an intensified CCD array operated in a conventional video format. The design of the system was based on detailed modeling of signal and image transfer properties of fast UV imaging lenses, image intensifiers and CCD detector arrays. While this system is suitable for direct scalar imaging, derived quantities (e.g. temperature or velocity images) require an exceptionally wide dynamic range imaging detector. To apply these diagnostics to reacting flows also requires a very fast shuttered camera. The authors have developed and successfully tested a new type of gated low-light level detector. This system relies on fast switching of proximity focused image-diode which is direct fiber-optic coupled to a cooled CCD array. Tests on this new detector show significant improvements in detection limit, dynamic range and spatial resolution as compared to microchannel plate intensified arrays.

Paul, P.H. [Sandia National Laboratories, Livermore, CA (United States)

1993-12-01T23:59:59.000Z

117

RISK ANALYSIS AND QUANTITATIVE RISK MANAGEMENT  

Science Journals Connector (OSTI)

Abstract Risk analysis is a decision-oriented process consisting of risk assessment, risk management, and risk communication. Risk analysis is a formalized scientifically based approach recognized by the World Trade Organization as the tool to address food safety issues and which shall found food safety regulation. Risk analysis is designed to meet specified goals for risk management activities, which should be related to the acceptable level of protection deemed appropriate in a country. Quantitative risk management can be based on relevant risk-based metrics, such as food safety objectives and Performance Objectives. The article addresses the elements and steps involved in risk analysis as currently recommended.

C. Heggum

2014-01-01T23:59:59.000Z

118

M-BAND IMAGING OF THE HR 8799 PLANETARY SYSTEM USING AN INNOVATIVE LOCI-BASED BACKGROUND SUBTRACTION TECHNIQUE  

SciTech Connect (OSTI)

Multi-wavelength observations/spectroscopy of exoplanetary atmospheres are the basis of the emerging exciting field of comparative exoplanetology. The HR 8799 planetary system is an ideal laboratory to study our current knowledge gap between massive field brown dwarfs and the cold 5 Gyr old solar system planets. The HR 8799 planets have so far been imaged at J- to L-band, with only upper limits available at M-band. We present here deep high-contrast Keck II adaptive optics M-band observations that show the imaging detection of three of the four currently known HR 8799 planets. Such detections were made possible due to the development of an innovative LOCI-based background subtraction scheme that is three times more efficient than a classical median background subtraction for Keck II AO data, representing a gain in telescope time of up to a factor of nine. These M-band detections extend the broadband photometric coverage out to {approx}5 {mu}m and provide access to the strong CO fundamental absorption band at 4.5 {mu}m. The new M-band photometry shows that the HR 8799 planets are located near the L/T-type dwarf transition, similar to what was found by other studies. We also confirm that the best atmospheric fits are consistent with low surface gravity, dusty, and non-equilibrium CO/CH{sub 4} chemistry models.

Galicher, Raphael; Marois, Christian [National Research Council Canada, Herzberg Institute of Astrophysics, 5071 West Saanich Road, Victoria, BC, V9E 2E7 (Canada); Macintosh, Bruce; Konopacky, Quinn [Lawrence Livermore National Laboratory, 7000 East Ave., Livermore, CA 94550 (United States); Barman, Travis, E-mail: raphael.galicher@nrc-cnrc.gc.ca [Lowell Observatory, 1400 West Mars Hill Road, Flagstaff, AZ 86001 (United States)

2011-10-01T23:59:59.000Z

119

Expressiveness and Closure Properties for Quantitative Languages  

E-Print Network [OSTI]

Weighted automata are nondeterministic automata with numerical weights on transitions. They can define quantitative languages~$L$ that assign to each word~$w$ a real number~$L(w)$. In the case of infinite words, the value of a run is naturally computed as the maximum, limsup, liminf, limit-average, or discounted-sum of the transition weights. The value of a word $w$ is the supremum of the values of the runs over $w$. We study expressiveness and closure questions about these quantitative languages. We first show that the set of words with value greater than a threshold can be non-$\\omega$-regular for deterministic limit-average and discounted-sum automata, while this set is always $\\omega$-regular when the threshold is isolated (i.e., some neighborhood around the threshold contains no word). In the latter case, we prove that the $\\omega$-regular language is robust against small perturbations of the transition weights. We next consider automata with transition weights $0$ or $1$ and show that they are as expres...

Chatterjee, Krishnendu; Henzinger, Thomas A

2010-01-01T23:59:59.000Z

120

System and method for leveraging human physiological traits to control microprocessor frequency  

DOE Patents [OSTI]

A system and method for leveraging physiological traits to control microprocessor frequency are disclosed. In some embodiments, the system and method may optimize, for example, a particular processor-based architecture based on, for example, end user satisfaction. In some embodiments, the system and method may determine, for example, whether their users are satisfied to provide higher efficiency, improved reliability, reduced power consumption, increased security, and a better user experience. The system and method may use, for example, biometric input devices to provide information about a user's physiological traits to a computer system. Biometric input devices may include, for example, one or more of the following: an eye tracker, a galvanic skin response sensor, and/or a force sensor.

Shye, Alex; Pan, Yan; Scholbrock, Benjamin; Miller, J. Scott; Memik, Gokhan; Dinda, Peter A; Dick, Robert P

2014-03-25T23:59:59.000Z

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


121

LE CONTROLE DU SOUFFLE DANS LES TRAITES SOUFIS INDIENS EN OURDOU DE L'EPOQUE COLONIALE  

E-Print Network [OSTI]

considérée habituellement comme l'âge d'or de la littérature sufi indo-persane, en réalité très peu de traduit et commenté en persan. Une caractéristique fondamentale des nouveaux traités sur la voie passage du persan, la langue de l'élite aristocratique et intellectuelle indienne, à l'ourdou, la langue

Paris-Sud XI, Université de

122

Heterosis and Heterosis Retention for Reproductive and Maternal Traits in Nellore-Angus Crossbred Cows  

E-Print Network [OSTI]

HETEROSIS AND HETEROSIS RETENTION FOR REPRODUCTIVE AND MATERNAL TRAITS IN NELLORE-ANGUS CROSSBRED COWS A Dissertation by MOHAMMAD DIYA TALAL HAMED OBEIDAT Submitted to the Office of Graduate Studies of Texas A&M University in partial... fulfillment of the requirements hqt the degree of DOCTOR OF PHILOSOPHY Chair of Committee, David G. Riley Committee Members, James O. Sanders Andy D. Herring Jason E. Sawyer Head of Department, H. Russell Cross August 2013 Major...

Obeidat, Mohammad Diya Talal Hamed

2013-07-08T23:59:59.000Z

123

Heterosis and Heterosis Retention for Reproductive and Maternal Traits in Brahman x Hereford Crossbred Cows  

E-Print Network [OSTI]

for Reproductive and Maternal Traits in Brahman x Hereford Crossbred Cows. (December 2011) Lydia Boenig, B.S., Texas A&M University Co-Chairs of Advisory Committee: Dr. James O. Sanders Dr. David G.... The resultant crossbred female offspring generally are fertile and the males are not (J. O. Sanders, Texas A&M University, personal communication). Two subspecies of domestic cattle in the Bos genus are Bos indicus and Bos taurus (sometimes referred to as Bos...

Boenig, Lydia

2012-02-14T23:59:59.000Z

124

Long-distance seed dispersal by wind: disentangling the effects of species traits, vegetation types, vertical turbulence and wind speed  

Science Journals Connector (OSTI)

Long-distance dispersal (LDD) of plant seeds by wind is affected by functional traits of the ... , as well as by the meteorological parameters wind speed and vertical turbulence. The relative importance of ... fo...

Felix Heydel; Sarah Cunze; Markus Bernhardt-Römermann…

2014-07-01T23:59:59.000Z

125

Fall 2014 Course Announcement BTRY 4830/6830 Quantitative Genomics and  

E-Print Network [OSTI]

in probability and / or statistics. #12; Mezey Biological Statistics and Computational Biology Time: Tues., Thurs. 8:40 am - 9:55 am Room the fundamentals of statistical methodology with applications to the identification of genetic loci responsible

Keinan, Alon

126

Fall 2013 Course Announcement BTRY 4830/6830 Quantitative Genomics and  

E-Print Network [OSTI]

in probability and / or statistics. #12; Mezey Biological Statistics and Computational Biology Time: Tues., Thurs. 8:40 am - 9:55 am Room the fundamentals of statistical methodology with applications to the identification of genetic loci responsible

Keinan, Alon

127

Hydrogen quantitative risk assessment workshop proceedings.  

SciTech Connect (OSTI)

The Quantitative Risk Assessment (QRA) Toolkit Introduction Workshop was held at Energetics on June 11-12. The workshop was co-hosted by Sandia National Laboratories (Sandia) and HySafe, the International Association for Hydrogen Safety. The objective of the workshop was twofold: (1) Present a hydrogen-specific methodology and toolkit (currently under development) for conducting QRA to support the development of codes and standards and safety assessments of hydrogen-fueled vehicles and fueling stations, and (2) Obtain feedback on the needs of early-stage users (hydrogen as well as potential leveraging for Compressed Natural Gas [CNG], and Liquefied Natural Gas [LNG]) and set priorities for %E2%80%9CVersion 1%E2%80%9D of the toolkit in the context of the commercial evolution of hydrogen fuel cell electric vehicles (FCEV). The workshop consisted of an introduction and three technical sessions: Risk Informed Development and Approach; CNG/LNG Applications; and Introduction of a Hydrogen Specific QRA Toolkit.

Groth, Katrina M.; Harris, Aaron P.

2013-09-01T23:59:59.000Z

128

Quantitative infrared analysis of hydrogen fluoride  

SciTech Connect (OSTI)

This work was performed at the Portsmouth Gaseous Diffusion Plant where hydrogen fluoride is produced upon the hydrolysis of UF{sub 6}. This poses a problem for in this setting and a method for determining the mole percent concentration was desired. HF has been considered to be a non-ideal gas for many years. D. F. Smith utilized complex equations in his HF studies in the 1950s. We have evaluated HF behavior as a function of pressure from three different perspectives. (1) Absorbance at 3877 cm{sup -1} as a function of pressure for 100% HF. (2) Absorbance at 3877 cm{sup -1} as a function of increasing partial pressure HF. Total pressure = 300 mm HgA maintained with nitrogen. (3) Absorbance at 3877 cm{sup -1} for constant partial pressure HF. Total pressure is increased to greater than 800 mm HgA with nitrogen. These experiments have shown that at partial pressures up to 35mm HgA, HIF follows the ideal gas law. The absorbance at 3877 cm{sup -1} can be quantitatively analyzed via infrared methods.

Manuta, D.M.

1997-04-01T23:59:59.000Z

129

Course Information Document MSc Quantitative Methods in Biodiversity, Conservation &  

E-Print Network [OSTI]

Course Information Document 2013/14 MSc Quantitative Methods in Biodiversity, Conservation, Veterinary and Life Sciences Institute of Biodiversity, Animal Health and Comparative Medicine #12;2 MSc/PgD Quantitative Methods in Biodiversity, Conservation & Epidemiology Animal Welfare Science, Ethics & Law TABLE

Guo, Zaoyang

130

Catch-and-Release Reagents for Broadscale Quantitative Proteomics Analyses  

Science Journals Connector (OSTI)

Here we demonstrate the stability of the linker under two different reducing conditions and show how this “catch-and-release (CAR)” reagent can be used to quantitatively compare protein abundances from two distinct cellular lysates. ... Of 1620 protein identifications for which quantitative data was recorded, 1396 mapped to biological processes according to the PANTHER classification system (https://panther.appliedbiosystems.com). ...

Carlos A. Gartner; Joshua E. Elias; Corey E. Bakalarski; Steven P. Gygi

2007-02-21T23:59:59.000Z

131

10 Questions for a Quantitative Geneticist: Wellington Muchero | Department  

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

Quantitative Geneticist: Wellington Muchero Quantitative Geneticist: Wellington Muchero 10 Questions for a Quantitative Geneticist: Wellington Muchero July 1, 2013 - 11:15am Addthis Wellington Muchero is a quantitative geneticist at the Bioenergy Science Center in Oak Ridge, Tennessee. | Photo by Jason Richards, Oak Ridge National Laboratory. Wellington Muchero is a quantitative geneticist at the Bioenergy Science Center in Oak Ridge, Tennessee. | Photo by Jason Richards, Oak Ridge National Laboratory. On what led him to a career in science, Wellington Muchero says, "As soon as I got a part-time job in a plant molecular biology lab as a college student, I realized there was no turning back." | Photo courtesy of Wellington Muchero. On what led him to a career in science, Wellington Muchero says, "As soon

132

Low Dose Radiation Research Program: Do Heritable Differences in an  

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

Do Heritable Differences in an Individual's Immune System Predict Do Heritable Differences in an Individual's Immune System Predict Differential Sensitivity to Low Dose Radiation Exposure? Quantitative trait loci (QTL) mapping Enlarge Image Quantitative trait loci (QTL) mapping identifies two strong candidate genes, Ptprk (Chr 10) and Acp1 (Chr 12) that are linked to genetic variation in the relative abundance of peripheral Th and Tc cells, two cell populations that are sensitive to radiation exposure at low doses. Expression of each gene is significantly altered by exposure to low dose radiation in vivo. Genome-wide scans for the ratio of %CD4+ (Th) to %CD8+ (Tc) lymphocytes were performed using genenetwork.org. The solid horizontal line represents genome-wide significance at P < 0.05, based on 1,000 permutations. LOD indicates logarithm of odds scores.

133

Scoring and mapping bovine anchor loci and screening polymorphic markers for horns and coat color in a Bos indicus X Bos taurus cross  

E-Print Network [OSTI]

SCORING AND MAPPING BOVINE ANCHOR LOCI AND SCREENING POLYMORPHIC MARKERS FOR HORNS AND COAT COLOR IN A IIOS IINDICUS X ItOS TA URUS CROSS A Thesis by RICK ALAN BRENNEMAN Submitted to the Office of Graduate Studies of Texas AkM University... Thesis by RICK ALAN BRENNEMAN Submitted to Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved as to style and content by: eremy F, Taylor (Chair of Committee) Scott K. Davi (Member...

Brenneman, Rick Alan

1994-01-01T23:59:59.000Z

134

A quantitative measure for protein conformational heterogeneity  

Science Journals Connector (OSTI)

Conformational heterogeneity is a defining characteristic of proteins. Intrinsically disordered proteins (IDPs) and denatured state ensembles are extreme manifestations of this heterogeneity. Inferences regarding globule versus coil formation can be drawn from analysis of polymeric properties such as average size shape and density fluctuations. Here we introduce a new parameter to quantify the degree of conformational heterogeneity within an ensemble to complement polymeric descriptors. The design of this parameter is guided by the need to distinguish between systems that couple their unfolding-folding transitions with coil-to-globule transitions and those systems that undergo coil-to-globule transitions with no evidence of acquiring a homogeneous ensemble of conformations upon collapse. The approach is as follows: Each conformation in an ensemble is converted into a conformational vector where the elements are inter-residue distances. Similarity between pairs of conformations is quantified using the projection between the corresponding conformational vectors. An ensemble of conformations yields a distribution of pairwise projections which is converted into a distribution of pairwise conformational dissimilarities. The first moment of this dissimilarity distribution is normalized against the first moment of the distribution obtained by comparing conformations from the ensemble of interest to conformations drawn from a Flory random coil model. The latter sets an upper bound on conformational heterogeneity thus ensuring that the proposed measure for intra-ensemble heterogeneity is properly calibrated and can be used to compare ensembles for different sequences and across different temperatures. The new measure of conformational heterogeneity will be useful in quantitative studies of coupled folding and binding of IDPs and in de novo sequence design efforts that are geared toward controlling the degree of heterogeneity in unbound forms of IDPs.

Rohit V. Pappu

2013-01-01T23:59:59.000Z

135

Quantitative x-ray imager (abstract)  

SciTech Connect (OSTI)

We report on development of a quantitative x-ray imager (QXI) for the national Inertial Confinement Fusion Program. Included in this development is a study of photocathode response as a function of photon energy, 2--17.5 keV, which is related to diagnostic development on the National Ignition Facility (NIF). The QXI is defined as being a quantative imager due to the repeated characterization. This instrument is systematically checked out, electronically as well as its photocathode x-ray response, both on a direct current and pulsed x-ray sources, before and after its use on a shot campaign. The QXI is a gated x-ray imager1 used for a variety of experiments conducted in the Inertial Confinement Fusion and Radiation Physics Program. The camera was assembled in Los Alamos and has been under development since 1997 and has now become the workhorse framing camera by the program. The electronics were built by Grant Applied Physics of San Fransisco, CA.2 The QXI has been used at the LANL Trident, LLNL Nova, and University of Rochester Laboratory OMEGA laser facilities. The camera consists of a grated microchannel plate (MCP), a phosphor coated fiberoptic faceplate coupled to film for data readout, along with high speed electronic pulsers to drive the x-ray detector. The QXI has both a two-strip and a four-strip detection head and has the ability to individually bias the gain of each of the strips. The timing of the QXI was done at the Trident short pulse laboratory, using 211 nm light. Single strip jitter was looked at as well and determined to be <25 ps. Flatfielding of the photocathode across the MCP was done with the Trident main laser with 150 J on a gold disk with a 1 ns. Spatial resolution was determined to be <5 {mu}m by using the same laser conditions as before and a backlit 1000 lp/in. grid. The QXI has been used on cylindrical implosion work at the Nova Laser Facility, and on direct-drive cylinder mix and indirect-drive high convergence implosion experiments at OMEGA. Its two-strip module has provided the capability to look at point backlighters, as part of technique development for experiments on the NIF. Its next use will be in March 2000 with its off axis viewer nose at Omega, providing a perpendicular view of Rayleigh--Taylor spike dissipation.

Evans, Scott C.; Archuleta, Tom N.; Oertel, John A.; Walsh, Peter J.

2001-01-01T23:59:59.000Z

136

Associations among hydrologic classifications and fish traits to support environmental flow standards  

SciTech Connect (OSTI)

Classification systems are valuable to ecological management in that they organize information into consolidated units thereby providing efficient means to achieve conservation objectives. Of the many ways classifications benefit management, hypothesis generation has been discussed as the most important. However, in order to provide templates for developing and testing ecologically relevant hypotheses, classifications created using environmental variables must be linked to ecological patterns. Herein, we develop associations between a recent US hydrologic classification and fish traits in order to form a template for generating flow ecology hypotheses and supporting environmental flow standard development. Tradeoffs in adaptive strategies for fish were observed across a spectrum of stable, perennial flow to unstable intermittent flow. In accordance with theory, periodic strategists were associated with stable, predictable flow, whereas opportunistic strategists were more affiliated with intermittent, variable flows. We developed linkages between the uniqueness of hydrologic character and ecological distinction among classes, which may translate into predictions between losses in hydrologic uniqueness and ecological community response. Comparisons of classification strength between hydrologic classifications and other frameworks suggested that spatially contiguous classifications with higher regionalization will tend to explain more variation in ecological patterns. Despite explaining less ecological variation than other frameworks, we contend that hydrologic classifications are still useful because they provide a conceptual linkage between hydrologic variation and ecological communities to support flow ecology relationships. Mechanistic associations among fish traits and hydrologic classes support the presumption that environmental flow standards should be developed uniquely for stream classes and ecological communities, therein.

McManamay, Ryan A [ORNL; Bevelhimer, Mark S [ORNL; Frimpong, Dr. Emmanuel A, [Virginia Polytechnic Institute and State University

2014-01-01T23:59:59.000Z

137

Quantitative room-temperature mineralization of airborne formaldehyde using  

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

Quantitative room-temperature mineralization of airborne formaldehyde using Quantitative room-temperature mineralization of airborne formaldehyde using manganese oxide catalysts Title Quantitative room-temperature mineralization of airborne formaldehyde using manganese oxide catalysts Publication Type Journal Article Year of Publication 2011 Authors Sidheswaran, Meera A., Hugo Destaillats, Douglas P. Sullivan, Joern Larsen, and William J. Fisk Journal Applied Catalysis B - Environmental Issue 107 Pagination 34-41 Date Published 2011 Keywords commercial building ventilation & indoor environmental quality group, commercial building ventilation and indoor environmental quality group, energy analysis and environmental impacts department, indoor environment department, indoor environment group DOI 10.1016/j.apcatb.2011.06.032 Attachment Size

138

Quantitative analysis of cerebral white matter anatomy from diffusion MRI  

E-Print Network [OSTI]

In this thesis we develop algorithms for quantitative analysis of white matter fiber tracts from diffusion MRI. The presented methods enable us to look at the variation of a diffusion measure along a fiber tract in a single ...

Maddah, Mahnaz

2008-01-01T23:59:59.000Z

139

Quantitative Analysis of Reaction Front Geometry in Detonations  

E-Print Network [OSTI]

Quantitative Analysis of Reaction Front Geometry in Detonations F. Pintgen, and J.E. Shepherd Previous observations (Pintgen et al., 2003b, Pintgen, 2000) on the reaction zone struc- ture

Shepherd, Joe

140

On the practice of dichotomization of quantitative variables  

E-Print Network [OSTI]

The authors examine the practice of dichotomization of quantitative measures, wherein relationships among variables are examined after 1 or more variables have been converted to dichotomous variables by splitting the sample ...

MacCallum, R. C.; Zhang, S.; Preacher, K. J.; Rucker, D. D.

2002-01-01T23:59:59.000Z

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


141

Ensemble typhoon quantitative precipitation forecasts model in Taiwan  

Science Journals Connector (OSTI)

In this study, an ensemble typhoon quantitative precipitation forecast (ETQPF) model was developed to provide typhoon rainfall forecasts for Taiwan. The ETQPF rainfall forecast is obtained by averaging the pick-out cases, which are screened at a ...

Jing-Shan Hong; Chin-Tzu Fong; Ling-Feng Hsiao; Yi-Chiang Yu; Chian-You Tzeng

142

Quantitative Data Analysis Methods for 3D Microstructure  

E-Print Network [OSTI]

of electrochemical ceramic devices such as solid oxide fuel and electrolyser cells depends on the distributionQuantitative Data Analysis Methods for 3D Microstructure Characterization of Solid Oxide Cells

143

Quantitative Risk Assessment and the Notion of Acceptable Risk  

Science Journals Connector (OSTI)

Kristen Shrader-Frechette divides the activity of quantitative risk assessment (QRA) into three stages: (1) risk identification, (2) risk estimation, and (3) risk evaluation.1 Given the present level of developme...

James Humber; Robert Almeder

1987-01-01T23:59:59.000Z

144

Fast quantitation of 5-hydroxymethylfurfural in honey using planar chromatography  

Science Journals Connector (OSTI)

An approach for rapid quantitation of 5-hydroxymethylfurfural (HMF) in honey using planar chromatography...r, of???0.9997 for peak areas and???0.9996 for peak heights. Repeatability in the matrix confirmed the su...

Elena S. Chernetsova; Igor A. Revelsky…

2011-07-01T23:59:59.000Z

145

Quantitative assessment of disassembly difficulty in product recycling  

E-Print Network [OSTI]

inherent in the evaluation procedure. A catalog of quantitative difficulty ratings for common disassembly tasks is generated. The scores are derived from work measurement analyses of the tasks and are based published motion-time data. The scores provide...

Hanft, Thomas Albert

2012-06-07T23:59:59.000Z

146

Landscape responses to intraplate tectonism: Quantitative constraints from 10  

E-Print Network [OSTI]

Landscape responses to intraplate tectonism: Quantitative constraints from 10 Be nuclide abundances approach for identifying neotectonic forcing of landscape evolution in mildly deforming continental or absent, implying that 10 Be concentration may act as a `tracer' for disequilibrium landscapes responding

Sandiford, Mike

147

Geothermal Reconnaissance From Quantitative Analysis Of Thermal Infrared  

Open Energy Info (EERE)

Geothermal Reconnaissance From Quantitative Analysis Of Thermal Infrared Geothermal Reconnaissance From Quantitative Analysis Of Thermal Infrared Imagery Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Reference Material: Geothermal Reconnaissance From Quantitative Analysis Of Thermal Infrared Imagery Details Activities (1) Areas (1) Regions (0) Abstract: Unavailable Author(s): K. Watson Published: Proceedings of the ninth international symposium on remote sensing of environment, April 15-19, p. 1919-1932., 1974 Document Number: Unavailable DOI: Unavailable Thermal And-Or Near Infrared At Raft River Geothermal Area (1974-1976) Raft River Geothermal Area Retrieved from "http://en.openei.org/w/index.php?title=Geothermal_Reconnaissance_From_Quantitative_Analysis_Of_Thermal_Infrared_Imagery&oldid=387504" Category:

148

Quantitative NDA Measurements of Advanced Reprocessing Product Materials Containing U, NP, PU, and AM  

E-Print Network [OSTI]

of this first principle technique have been identified: (1) quantitative measurement of uranium, neptunium, plutonium, and americium materials; (2) quantitative measurement of mixed oxide (MOX) materials; (3) quantitative measurement of uranium materials; and (4...

Goddard, Braden

2013-04-05T23:59:59.000Z

149

Daily Stress Recognition from Mobile Phone Data, Weather Conditions and Individual Traits  

E-Print Network [OSTI]

Research has proven that stress reduces quality of life and causes many diseases. For this reason, several researchers devised stress detection systems based on physiological parameters. However, these systems require that obtrusive sensors are continuously carried by the user. In our paper, we propose an alternative approach providing evidence that daily stress can be reliably recognized based on behavioral metrics, derived from the user's mobile phone activity and from additional indicators, such as the weather conditions (data pertaining to transitory properties of the environment) and the personality traits (data concerning permanent dispositions of individuals). Our multifactorial statistical model, which is person-independent, obtains the accuracy score of 72.28% for a 2-class daily stress recognition problem. The model is efficient to implement for most of multimedia applications due to highly reduced low-dimensional feature space (32d). Moreover, we identify and discuss the indicators which have stron...

Bogomolov, Andrey; Ferron, Michela; Pianesi, Fabio; Alex,; Pentland,

2014-01-01T23:59:59.000Z

150

Project Title: Translating Solanaceae Sequence Diversity and Trait Variation into Applied Outcomes through Integrative Research, Education, and Extension  

E-Print Network [OSTI]

Project Title: Translating Solanaceae Sequence Diversity and Trait Variation into Applied Outcomes. Project Director: David Douches (douchesd@msu.edu), Michigan State University Co-Directors: Robin Buell@hort.oregonstate.edu), Oregon State University Project Website: http://solcap.msu.edu The SolCAP project was initiated September

Douches, David S.

151

Phenotypic Data Collection and Sample Preparation for Genomics of Wood Formation and Cellulosic Biomass Traits in Sunflower: Ames, IA location.  

SciTech Connect (OSTI)

Three fields were planted in Ames in 2010, two association mapping fields, N3 and A, and a recombinant inbred line field, N13. Phenotype data and images were transferred to UGA to support genetic and genomic analyses of woody biomass-related traits.

Marek, Laura F.

2011-06-17T23:59:59.000Z

152

Genomics Populations for Characterization of Economically Important Traits Structured populations of beef cattle with extensive phenotypic records for economical-  

E-Print Network [OSTI]

Genomics Populations for Characterization of Economically Important Traits Structured populations efficiency and carcass merit, are a critical need in the post-genome sequencing era. Coupled with the availability of the 7.5x assembly of the bovine genome sequence and the single nucleotide polymorphisms (SNP

153

EXPLORING INDIVIDUAL DIFFERENCES IN RAYBASED SELECTION: STRATEGIES AND TRAITS Chadwick A.  

E-Print Network [OSTI]

interfaces faster or better than others. This work investigates individual differences as measured require the user to develop an understanding of the interface and use it to determine which actions approach. Quantitative measures have been taken and reported when possible and then interpreted within

154

ARM - Evaluation Product - Quantitative Precipitation Estimates (QPE) from  

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

ProductsQuantitative Precipitation Estimates (QPE) ProductsQuantitative Precipitation Estimates (QPE) from the CSAPR Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Evaluation Product : Quantitative Precipitation Estimates (QPE) from the CSAPR Site(s) SGP TWP General Description Precipitation rates from cloud systems can give a fundamental insight into the processes occurring in-cloud. While rain gauges and disdrometers can give information at a single point, remote sensors such as radars can provide rainfall information over a defined area. The QPE value-added product (VAP) takes the Corrected Moments in Antenna Coordinates VAP and maps the Rain_rate_A field onto a Cartesian grid at the surface. This field is the rain rate as determined using the specific attenuation (A, dBZ/km) due to two-way liquid attenuation after Ryzhkov et

155

A microfluidic platform for high-throughput multiplexed protein quantitation  

E-Print Network [OSTI]

We present a high-throughput microfluidic platform capable of quantitating up to 384 biomarkers in 4 distinct samples by immunoassay. The microfluidic device contains 384 unit cells, which can be individually programmed with pairs of capture and detection antibody. Samples are quantitated in each unit cell by four independent MITOMI detection areas, allowing four samples to be analyzed in parallel for a total of 1,536 assays per device. We show that the device can be pre-assembled and stored for weeks at elevated temperature and we performed proof-of-concept experiments simultaneously quantitating IL-6, IL-1\\b{eta}, TNF-{\\alpha}, PSA, and GFP. Finally, we show that the platform can be used to identify functional antibody combinations by screening 64 antibody combinations requiring up to 384 unique assays per device.

Volpetti, Francesca; Maerkl, Sebastian

2014-01-01T23:59:59.000Z

156

Quantitative interpretation of tracer test data | Open Energy Information  

Open Energy Info (EERE)

Quantitative interpretation of tracer test data Quantitative interpretation of tracer test data Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Quantitative interpretation of tracer test data Abstract Geothermal reinjection is an important part of sustainable management of geothermal resources. Reinjection started out as a method of waste-water disposal, but is now also being used to counteract pressure draw-down and to extract more thermal energy from reservoir rocks. The possible cooling of production wells, or thermal breakthrough, is one of the main disadvantages associated with injection. To minimize this danger while maintaining the benefit from reinjection requires careful testing and research. Tracer testing, which is used to study flow-paths and quantify fluid-flow in hydrological systems, is probably the most important tool for

157

Quantitative gas-chromatographische Simultanbestimmung von Wasserstoff, Methan, Äthan und Äthylen  

Science Journals Connector (OSTI)

Die quantitative gas-chromatographische Bestimmung von Wasserstoff, Methan, Äthan und Äthylen führt bei Verwendung einer...

H. W. Dürbeck

158

Building a comprehensive quantitative risk assessment model for lung cancer  

Science Journals Connector (OSTI)

...Res, Volume 46, 2005 Building a comprehensive quantitative...including identification of multi-collinearities and...and resulted in model multi-collinearities. When...asbestos exposure, family history of LC and years...factors of emphysema, family history of LC, years...

Carol J. Etzel; Qing Zhang; Matthew Schabath; Qiong Dong; Xifeng Wu; Qingyi Wei; Margaret Spitz; and Christopher I. Amos

2005-05-01T23:59:59.000Z

159

Quantitative Quality Management through Defect Prediction and Statistical Process Control  

E-Print Network [OSTI]

Quantitative Quality Management through Defect Prediction and Statistical Process Control Pankaj: To produce high quality software, the final software should have as few defects as possible. The task of quality management in a software project is to plan suitable quality control activities, and properly

Jalote, Pankaj

160

Quantitative Photo-Acoustic Imaging of Small Absorbers Habib Ammari  

E-Print Network [OSTI]

Quantitative Photo-Acoustic Imaging of Small Absorbers Habib Ammari Emmanuel Bossy Vincent Jugnon Hyeonbae Kang§ December 1, 2009 Abstract In photo-acoustic imaging, energy absorption causes thermo absorber from the absorbed density. AMS subject classifications. 31B20, 35B37,35L05 Key words. photo

Kang, Hyeonbae

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


161

Quantitative crystal structure descriptors from multiplicative congruential generators  

Science Journals Connector (OSTI)

Certain number-theoretic relations, known as multiplicative congruential generators, are developed into quantitative crystal structure descriptors, facilitating a linearization procedure that eventually allows for a concise, fully reconstructable representation of structural information. Potential applications are related to the computational storage, retrieval and analysis of crystal structures, their algorithmic generation in the first place, and their combinatorial enumeration and classification.

Hornfeck, W.

2012-01-12T23:59:59.000Z

162

A straightforward computational approach for measuring nestedness using quantitative matrices  

Science Journals Connector (OSTI)

Nestedness has been one of the most reported patterns of species distribution in metacommunities as well as of species interactions in bipartite networks. We propose here a straightforward approach for quantifying nestedness using quantitative instead ... Keywords: Abundance data, Biogeography, Community structure, Food webs, Fragmentation, Host-parasite interactions, Incidence matrix, Metacommunity, Mutualistic networks

Mário Almeida-Neto; Werner Ulrich

2011-02-01T23:59:59.000Z

163

Journal of Quantitative Spectroscopy & Radiative Transfer 98 (2006) 220237  

E-Print Network [OSTI]

discontinuities associated with the propagation of a radiation front in transient radiation transport. r 2005 q heat flux s geometric path length S source term in the radiative transfer equation t time tc timeJournal of Quantitative Spectroscopy & Radiative Transfer 98 (2006) 220­237 Modified method

Pilon, Laurent

164

Journal of Quantitative Spectroscopy & Radiative Transfer 91 (2005) 2746  

E-Print Network [OSTI]

used in the field of transport phenomena simulation, and more specifically in the field of radiative (application of the reciprocity principle to the integral form of the radiative transfer equation), and to netJournal of Quantitative Spectroscopy & Radiative Transfer 91 (2005) 27­46 A boundary-based net

Dufresne, Jean-Louis

165

Quantitative Analysis of the Full Bitcoin Transaction Graph  

E-Print Network [OSTI]

Quantitative Analysis of the Full Bitcoin Transaction Graph Dorit Ron and Adi Shamir Department.ron,adi.shamir}@weizmann.ac.il Abstract. The Bitcoin scheme is a rare example of a large scale global payment system in which all and how they spend their bitcoins, the balance of bitcoins they keep in their accounts, and how they move

166

White Matter Glucose Metabolism during Intracortical Electrostimulation: A Quantitative [18  

E-Print Network [OSTI]

White Matter Glucose Metabolism during Intracortical Electrostimulation: A Quantitative [18 F compared to 27.87 mol/min/100 g at baseline. LCMR- glu in gray and white matter control areas was stable in white matter, correlations between neural activity and LC- MRglu have never been explicitly addressed

167

Quantitative Spreading Kinetics of a Three Molecular Layer Liquid Patch  

Science Journals Connector (OSTI)

Quantitative Spreading Kinetics of a Three Molecular Layer Liquid Patch ... The late stage kinetics of the spreading of a smectic nanodrop on a solid surface was investigated by direct and real time imaging of a three molecular layer patch using the SEEC microscopy. ... (15) At some stage of the spreading kinetics, the structure reduces to a single bilayer patch lying on the surface monolayer. ...

Olivier Noel; Jean-Luc Buraud; Laurent Berger; Dominique Ausserre?

2010-03-19T23:59:59.000Z

168

Quantitative Characterization of Filament Dynamics by Single-Molecule Lifetime  

E-Print Network [OSTI]

CHAPTER 29 Quantitative Characterization of Filament Dynamics by Single-Molecule Lifetime. Single-Molecule Lifetime Measurements A. Extract and Sample Preparation B. Microscopy C. Data Analysis Dynamics C. Connecting to Other Types of Measurements IV. Results and Conclusion References Abstract Single-molecule

Needleman, Daniel

169

Populus trichocarpa cell wall chemistry and ultrastructure trait variation, genetic control and genetic correlations  

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

Populus Populus trichocarpa cell wall chemistry and ultrastructure trait variation, genetic control and genetic correlations Ilga Porth 1 *, Jaroslav Kla ´ ps ˇte ˇ 2 *, Oleksandr Skyba 1 , Ben S. K. Lai 1 , Armando Geraldes 3 , Wellington Muchero 4 , Gerald A. Tuskan 4 , Carl J. Douglas 3 , Yousry A. El-Kassaby 2 and Shawn D. Mansfield 1 1 Department of Wood Science, Faculty of Forestry, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada; 2 Department of Forest Sciences, Faculty of Forestry, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada; 3 Department of Botany, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada; 4 BioSciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA Authors for correspondence: Shawn D. Mansfield Tel: +1 604 822 0196 Email: shawn.mansfield@ubc.ca Yousry A. El-Kassaby Tel: +1 604 822 1821 Email: y.el-kassaby@ubc.ca

170

Birth, weaning, carcass, and meat traits in Bos indicus-Bos taurus reciprocal backcross calves produced through embryo transfer  

E-Print Network [OSTI]

BIRTH, WEANING, CARCASS, AND MEAT TRAITS IN Bos indicus-Bos taurus RECIPROCAL BACKCROSS CALVES PRODUCED THROUGH EMBRYO TRANSFER A Thesis by TONYA SUE AMEN Submitted to the Office of Graduate Studies of Texas A&M... CALVES PRODUCED THROUGH EMBRYO TRANSFER A Thesis by TONYA SUE AMEN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE...

Amen, Tonya Sue

2005-02-17T23:59:59.000Z

171

Comparison of F1 cows sired by Brahman, Boran and Tuli bulls for reproductive, maternal, and cow longevity traits  

E-Print Network [OSTI]

by ASSALIA HASSIMI MAIGA Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved by: Chair of Committee, James O. Sanders Committee...COMPARISON OF F1 COWS SIRED BY BRAHMAN, BORAN AND TULI BULLS FOR REPRODUCTIVE, MATERNAL, AND COW LONGEVITY TRAITS A Thesis by ASSALIA HASSIMI MAIGA Submitted to the Office of Graduate Studies of Texas A&M University in partial...

Maiga, Assalia Hassimi

2007-04-25T23:59:59.000Z

172

Low Dose Radiation Research Program: Quantitative Analysis of Connexin  

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

Quantitative Analysis of Connexin Expression in Cultured Colonies Quantitative Analysis of Connexin Expression in Cultured Colonies Authors: B. Parvin, Q. Yang, R. L. Henshall-Powell and M.H. Barcellos Hoff We are studying the effects of ionizing radiation on the signaling between human mammary epithelial cells and the extracellular microenvironment. To do so we use an assay based on the ability of the cells to organize into three-dimensional acini when embedded into an extracellular matrix. Although tumorigenic and non-tumorigenic mammary epithelial cells are nearly indistinguishable when cultured as monolayers, their biological character readily diverge when tissue-specific morphogenesis is analyzed. Non-malignant human mammary epithelial cells (HMEC) cultured within a reconstituted basement membrane organize into acinar-like structures with

173

Direct and quantitative photothermal absorption spectroscopy of individual particulates  

SciTech Connect (OSTI)

Photonic structures can exhibit significant absorption enhancement when an object's length scale is comparable to or smaller than the wavelength of light. This property has enabled photonic structures to be an integral component in many applications such as solar cells, light emitting diodes, and photothermal therapy. To characterize this enhancement at the single particulate level, conventional methods have consisted of indirect or qualitative approaches which are often limited to certain sample types. To overcome these limitations, we used a bilayer cantilever to directly and quantitatively measure the spectral absorption efficiency of a single silicon microwire in the visible wavelength range. We demonstrate an absorption enhancement on a per unit volume basis compared to a thin film, which shows good agreement with Mie theory calculations. This approach offers a quantitative approach for broadband absorption measurements on a wide range of photonic structures of different geometric and material compositions.

Tong, Jonathan K.; Hsu, Wei-Chun; Eon Han, Sang; Burg, Brian R.; Chen, Gang, E-mail: gchen2@mit.edu [Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)] [Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Zheng, Ruiting [Key Laboratory of Radiation Beam Technology and Materials Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875 (China)] [Key Laboratory of Radiation Beam Technology and Materials Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875 (China); Shen, Sheng [Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States)] [Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States)

2013-12-23T23:59:59.000Z

174

Experimental bath engineering for quantitative studies of quantum control  

E-Print Network [OSTI]

We develop and demonstrate a technique to engineer universal unitary baths in quantum systems. Using the correspondence between unitary decoherence due to ambient environmental noise and errors in a control system for quantum bits, we show how a wide variety of relevant classical error models may be realized through In-Phase/Quadrature modulation on a vector signal generator producing a resonant carrier signal. We demonstrate our approach through high-bandwidth modulation of the 12.6 GHz carrier appropriate for trapped $^{171}$Yb$^{+}$ ions. Experiments demonstrate the reduction of coherent lifetime in the system in the presence of an engineered bath, with the observed $T_{2}$ scaling as predicted by a quantitative model described herein. These techniques form the basis of a toolkit for quantitative tests of quantum control protocols, helping experimentalists characterize the performance of their quantum coherent systems.

A. Soare; H. Ball; D. Hayes; X. Zhen; M. C. Jarratt; J. Sastrawan; H. Uys; M. J. Biercuk

2014-03-18T23:59:59.000Z

175

Review of progress in quantitative NDE. [Nondestructive Evaluation (NDE)  

SciTech Connect (OSTI)

This booklet is composed of abstracts from papers submitted at a meeting on quantitative NDE. A multitude of topics are discussed including analysis of composite materials, NMR uses, x-ray instruments and techniques, manufacturing uses, neural networks, eddy currents, stress measurements, magnetic materials, adhesive bonds, signal processing, NDE of mechanical structures, tomography,defect sizing, NDE of plastics and ceramics, new techniques, optical and electromagnetic techniques, and nonlinear techniques. (GHH)

Not Available

1991-01-01T23:59:59.000Z

176

The purification, quantitation and EPR characterization of human lactoferrin  

E-Print Network [OSTI]

THE PURIFICATION, QUANTITATION AND EPR CHARACTERIZATION OF HUMAN LACTOFERRIN A Thesis by GREGORY ARNOLD GRAYBILL Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE May 1987 Major Subject: Biochemistry THE PURIFICATION, QUANTKATION AND EPR CHARACTERIZATION OF ~ LACTOFERRIN A Thesis by GREGORY ARNOLD GRAYBILL Approved as to style and content by George W. tes (Chair of Committee) David N. Mc...

Graybill, Gregory Arnold

1987-01-01T23:59:59.000Z

177

Thermal stability of diesel fuels by quantitative gravimetric JFTOT  

SciTech Connect (OSTI)

The current worldwide standard test method for assessing thermal stability of jet turbine aviation fuels is the ASTM D3241 method. This method generates a visual tube deposit rating which is not quantitative, but assumes that very dark colors equate to unstable fuels. The tube rating is coded against color standards and the darkest color is usually said to fail a fuel for use in jet turbine engines/fuel systems. The method also generates a semi-quantitative filter pressure drop. The pressure drop is so semi-quantitative that it also is afforded a pass/fail criterion for fuel acceptance in jet aircraft. In 1991, we described the construction of a test device which duplicated all of the experimentally important parameters of the D3241 method but which substituted a weighable 302 stainless steel (s/s) foil strip for the bulky tube, so that direct weighing of thermal surface deposits could be made. In addition, the nominal 17 micron (dutch weave) s/s filter of the D3241 was substituted with a nylon membrane 0.8 micron filter which was also capable of direct weighing of the fuel entrained solids generated by the test. In subsequent papers, the use of this device for generating a large data base of results based on aviation fuels from many different refinery processes and many different geographic/crude sources was described. In addition this new device, dubbed the gravimetric jet fuel total oxidation tester (JFTOT) after the original ASTM D3241 device, was also used to assess quantitatively the effects of temperature, pressure, and fuel flow in addition to the effects of dissolved metals and various fuel additives. This paper describes the JFTOT test for the analysis of middle distillate diesel fuels.

Beal, E.J.; Hardy, D.R. [Naval Research Laboratory, Washington, DC (United States)

1994-12-31T23:59:59.000Z

178

E-Print Network 3.0 - additional quantitative fit-testing Sample...  

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

quantitative fit-testing Search Powered by Explorit Topic List Advanced Search Sample search results for: additional quantitative fit-testing Page: << < 1 2 3 4 5 > >> 1 Cal State...

179

Label-Free Quantitative LC?MS Proteomics of Alzheimer&rsquo...  

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

Label-Free Quantitative LC?MS Proteomics of Alzheimer’s Disease and Normally Aged Human Brains. Label-Free Quantitative LC?MS Proteomics of Alzheimer’s...

180

Quantitative Resistance of Potato to Pectobacterium atrosepticum and Phytophthora infestans: Integrating  

E-Print Network [OSTI]

Quantitative Resistance of Potato to Pectobacterium atrosepticum and Phytophthora infestans atrosepticum and Phytophthora infestans) differing by their infectious processes and five potato cultivars D, Val F (2011) Quantitative Resistance of Potato to Pectobacterium atrosepticum and Phytophthora

Paris-Sud XI, Université de

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


181

Effects of Residual Feed Intake Classification on Temperament, Carcass Composition, and Feeding Behavior Traits in Growing Santa Gertrudis Heifers  

E-Print Network [OSTI]

individual animal feed intake and behavior in large groups remained difficult until RFID-based technology was developed in the mid-1970s (Eradus and Jansen, 1999). While the costs associated with measuring individual feed intake in cattle are expensive... traits in large groups of animals using radio frequency identification (RFID) tags. The antenna located within the rim of the feed bunk reads the RFID tag as the animal enters the bunk via the neck bars. A wireless signal is then sent to a data...

Ramirez, Justin A

2014-04-16T23:59:59.000Z

182

Integration of hydrothermal-energy economics: related quantitative studies  

SciTech Connect (OSTI)

A comparison of ten models for computing the cost of hydrothermal energy is presented. This comparison involved a detailed examination of a number of technical and economic parameters of the various quantitative models with the objective of identifying the most important parameters in the context of accurate estimates of cost of hydrothermal energy. Important features of various models, such as focus of study, applications, marked sectors covered, methodology, input data requirements, and output are compared in the document. A detailed sensitivity analysis of all the important engineering and economic parameters is carried out to determine the effect of non-consideration of individual parameters.

Not Available

1982-08-01T23:59:59.000Z

183

Quantitative infrared absorption cross sections of isoprene for atmospheric measurements  

SciTech Connect (OSTI)

The OH- and O3- initiated oxidations of isoprene, which is one of the primary volatile organic compounds produced by vegetation, are a major source of atmospheric formaldehyde and other oxygenated organics, yet little quantitative IR data exists for isoprene. We thus report absorption coefficients and integrated band intensities for isoprene in the 600 - 6500 cm-1 region. The pressure-broadened (1 atmosphere N2) spectra were recorded at 278, 298 and 323 K in a 19.96 cm path length cell at 0.112 cm-1 resolution, using a Bruker 66V FTIR. Composite spectra are derived from a minimum of seven pressures at each temperature.

Brauer, Carolyn S.; Blake, Thomas A.; Guenther, Alex B.; Sharpe, Steven W.; Sams, Robert L.; Johnson, Timothy J.

2014-11-19T23:59:59.000Z

184

A quantitative method for measuring the quality of history matches  

SciTech Connect (OSTI)

History matching can be an efficient tool for reservoir characterization. A {open_quotes}good{close_quotes} history matching job can generate reliable reservoir parameters. However, reservoir engineers are often frustrated when they try to select a {open_quotes}better{close_quotes} match from a series of history matching runs. Without a quantitative measurement, it is always difficult to tell the difference between a {open_quotes}good{close_quotes} and a {open_quotes}better{close_quotes} matches. For this reason, we need a quantitative method for testing the quality of matches. This paper presents a method for such a purpose. The method uses three statistical indices to (1) test shape conformity, (2) examine bias errors, and (3) measure magnitude of deviation. The shape conformity test insures that the shape of a simulated curve matches that of a historical curve. Examining bias errors assures that model reservoir parameters have been calibrated to that of a real reservoir. Measuring the magnitude of deviation assures that the difference between the model and the real reservoir parameters is minimized. The method was first tested on a hypothetical model and then applied to published field studies. The results showed that the method can efficiently measure the quality of matches. It also showed that the method can serve as a diagnostic tool for calibrating reservoir parameters during history matching.

Shaw, T.S. [Kerr-McGee Corp., Oklahoma City, OK (United States); Knapp, R.M. [Univ. of Oklahoma, Norman, OK (United States)

1997-08-01T23:59:59.000Z

185

Quantitative modelling of electricity consumption using computational intelligence aided design  

Science Journals Connector (OSTI)

Abstract High electricity consumption is of concern to the world for a variety of reasons, including its social-economic-environmental coupled impacts on well-being of individuals, social life and the federal energy policies. This paper proposes a quantitative model to examine the long-term relationship between annual electricity consumption and its major macroeconomic variables, including gross domestic product, electricity price, efficiency, economic structure, and carbon dioxide emission, using computational intelligence aided design (CIAD). It develops a firefly algorithm with variable population (FAVP) to obtain the parameters of the electricity consumption model through optimising two proposed trend indices: moving mean of the average precision (mmAP) and moving mean of standard derivation (mmSTD). The model is validated with empirical electricity consumption data in China between 1980 and 2012, based on which the error of approximations between 1980 and 2009 is ±15% and the error of predictions between 2010 and 2012 is [?8%, ?5%]. The main contributions of this research are to develop: (1) a novel quantitative model that can accurately predict the social, economic and environmental coupled impacts on the annual electricity demands; (2) the conceptual CIAD framework; (3) FAVP algorithm; and (4) two new trend indices of mmAP and mmSTD. The findings of this research can assist the decision makers in resolving the conflict between energy consumption growth and carbon emission reduction without dooming the economic prosperity in the long run.

Yi Chen; Guangfeng Zhang; Tongdan Jin; Shaomin Wu; Bei Peng

2014-01-01T23:59:59.000Z

186

Multivariate calibration applied to the quantitative analysis of infrared spectra  

SciTech Connect (OSTI)

Multivariate calibration methods are very useful for improving the precision, accuracy, and reliability of quantitative spectral analyses. Spectroscopists can more effectively use these sophisticated statistical tools if they have a qualitative understanding of the techniques involved. A qualitative picture of the factor analysis multivariate calibration methods of partial least squares (PLS) and principal component regression (PCR) is presented using infrared calibrations based upon spectra of phosphosilicate glass thin films on silicon wafers. Comparisons of the relative prediction abilities of four different multivariate calibration methods are given based on Monte Carlo simulations of spectral calibration and prediction data. The success of multivariate spectral calibrations is demonstrated for several quantitative infrared studies. The infrared absorption and emission spectra of thin-film dielectrics used in the manufacture of microelectronic devices demonstrate rapid, nondestructive at-line and in-situ analyses using PLS calibrations. Finally, the application of multivariate spectral calibrations to reagentless analysis of blood is presented. We have found that the determination of glucose in whole blood taken from diabetics can be precisely monitored from the PLS calibration of either mind- or near-infrared spectra of the blood. Progress toward the non-invasive determination of glucose levels in diabetics is an ultimate goal of this research. 13 refs., 4 figs.

Haaland, D.M.

1991-01-01T23:59:59.000Z

187

E-Print Network 3.0 - anopheles saglin proteins Sample Search...  

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

trait loci in Anopheles gambiae controlling the encapsulation response against... .luna@yale.edu; Mark Q Benedict - mqb0@cdc.gov * Corresponding author Anopheles...

188

E-Print Network 3.0 - anopheles cruzii em Sample Search Results  

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

trait loci in Anopheles gambiae controlling the encapsulation response against... .luna@yale.edu; Mark Q Benedict - mqb0@cdc.gov * Corresponding author Anopheles...

189

Chromosomal loci of Neurospora crassa.  

Science Journals Connector (OSTI)

...tentatively identi- fied as a nuclear DNA-binding protein, whose...to oligomycin. Defective in energy transduction (313). Structural...arginine biosynthetic pathway (401). Used to study the utilization...Left of T(S1229) and pt (2%) (40, 55, 692, 808...

D D Perkins; A Radford; D Newmeyer; M Björkman

1982-12-01T23:59:59.000Z

190

Chromosomal loci of Neurospora crassa.  

Science Journals Connector (OSTI)

...and xanthine dehydrogenase (1080, 1081) (Fig. 19 and 24...Linked to nit-3 (35 to 38%) (1080). Cannot use nitrate or hypoxanthine...cnxABC of Aspergillus nidulans. (1080, 1081) nmr-1: nitrogen metabolite...and gln-i (4 to 10%) (1079). Synthesis of nitrate reductase...

D D Perkins; A Radford; D Newmeyer; M Björkman

1982-12-01T23:59:59.000Z

191

STR Loci and Multiplex Kits  

E-Print Network [OSTI]

(1997) · COfiler (1998) · SGM Plus (1999) · Identifiler (2001) · Profiler Plus ID (2001) · SEfiler (2002 16 (2009) · PowerPlex ESX 17 (2009) · PowerPlex ESI 16 (2009) · PowerPlex ESI 17 (2009) · Power

Perkins, Richard A.

192

Quantitative Methods for Comparing Different HVAC Control Schemes  

E-Print Network [OSTI]

Experimentally comparing the energy usage and comfort characteristics of different controllers in heating, ventilation, and air-conditioning (HVAC) systems is difficult because variations in weather and occupancy conditions preclude the possibility of establishing equivalent experimental conditions across the order of hours, days, and weeks. This paper is concerned with defining quantitative metrics of energy usage and occupant comfort, which can be computed and compared in a rigorous manner that is capable of determining whether differences between controllers are statistically significant in the presence of such environmental fluctuations. Experimental case studies are presented that compare two alternative controllers (a schedule controller and a hybrid system learning-based model predictive controller) to the default controller in a building-wide HVAC system. Lastly, we discuss how our proposed methodology may also be able to quantify the efficiency of other building automation systems.

Aswani, Anil; Taneja, Jay; Krioukov, Andrew; Culler, David; Tomlin, Claire

2012-01-01T23:59:59.000Z

193

Quantitative analysis of forest island pattern in selected Ohio landscapes  

SciTech Connect (OSTI)

The purpose of this study was to quantitatively describe the various aspects of regional distribution patterns of forest islands and relate those patterns to other landscape features. Several maps showing the forest cover of various counties in Ohio were selected as representative examples of forest patterns to be quantified. Ten thousand hectare study areas (landscapes) were delineated on each map. A total of 15 landscapes representing a wide variety of forest island patterns was chosen. Data were converted into a series of continuous variables which contained information pertinent to the sizes, shape, numbers, and spacing of woodlots within a landscape. The continuous variables were used in a factor analysis to describe the variation among landscapes in terms of forest island pattern. The results showed that forest island patterns are related to topography and other environmental features correlated with topography.

Bowen, G.W.; Burgess, R.L.

1981-07-01T23:59:59.000Z

194

Quantitative genetic activity graphical profiles for use in chemical evaluation  

SciTech Connect (OSTI)

A graphic approach, terms a Genetic Activity Profile (GAP), was developed to display a matrix of data on the genetic and related effects of selected chemical agents. The profiles provide a visual overview of the quantitative (doses) and qualitative (test results) data for each chemical. Either the lowest effective dose or highest ineffective dose is recorded for each agent and bioassay. Up to 200 different test systems are represented across the GAP. Bioassay systems are organized according to the phylogeny of the test organisms and the end points of genetic activity. The methodology for producing and evaluating genetic activity profile was developed in collaboration with the International Agency for Research on Cancer (IARC). Data on individual chemicals were compiles by IARC and by the US Environmental Protection Agency (EPA). Data are available on 343 compounds selected from volumes 1-53 of the IARC Monographs and on 115 compounds identified as Superfund Priority Substances. Software to display the GAPs on an IBM-compatible personal computer is available from the authors. Structurally similar compounds frequently display qualitatively and quantitatively similar profiles of genetic activity. Through examination of the patterns of GAPs of pairs and groups of chemicals, it is possible to make more informed decisions regarding the selection of test batteries to be used in evaluation of chemical analogs. GAPs provided useful data for development of weight-of-evidence hazard ranking schemes. Also, some knowledge of the potential genetic activity of complex environmental mixtures may be gained from an assessment of the genetic activity profiles of component chemicals. The fundamental techniques and computer programs devised for the GAP database may be used to develop similar databases in other disciplines. 36 refs., 2 figs.

Waters, M.D. [Environmental Protection Agency, Washington, DC (United States); Stack, H.F.; Garrett, N.E.; Jackson, M.A. [Environmental Health Research and Testing, Inc., Research Triangle Park, NC (United States)

1990-12-31T23:59:59.000Z

195

Quantitative dynamic modeling of transcriptional networks of embryonic stem cells using integrated framework of Pareto optimality and energy balance  

E-Print Network [OSTI]

Embryonic Stem Cells (ESCs) are pluripotent and thus are considered the "cell type of choice". ESCs exhibit several phenotypic traits (e.g., proliferation, differentiation, apoptosis, necrosis, etc.) and when differentiated ...

Avila, Marco A., Ph. D. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

196

Genetic linkage maps of centipedegrass [Eremochloa ophiuroides (Munro) Hack] based on sequence-related amplified polymorphism and expressed sequence tag-simple sequence repeat markers  

Science Journals Connector (OSTI)

Abstract Centipedegrass [Eremochloa ophiuroides (Munro) Hack] is a warm-season turfgrass native to the southeast of China. In this study, the first genetic linkage maps of centipedegrass were constructed using PCR-based markers based on a segregation population consisting of 89 F1 progeny derived from a cross between two ecotypes (E102 and E092(1)). A combination of sequence-related amplified polymorphisms (SRAPs) and expressed sequence tag-simple sequence repeats (EST-SSRs) from wheat was used for map construction. Eighty nine loci, including 85 SRAP and 4 EST-SSR loci, in the female (E102) linkage map were placed in five major and five minor (two triplet and three doublets) linkage maps, covering 623.6 cM with an average map distance of 7.1 cM between adjacent markers. In the male (E092(1)) linkage map, 71 loci including 71 SRAP and 0 EST-SSR loci were assigned to seven major and five triplets linkage maps, with genome coverage of 673.1 cM, and a mean inter-marker separation of 9.6 cM. The information presented in this study establishes a foundation for extending genetic mapping in this species, serves as a framework for mapping quantitative trait loci, and provides basic information for future molecular breeding.

Yiqi Zheng; Hailin Guo; Guozhang Zang; Jianxiu Liu

2013-01-01T23:59:59.000Z

197

Quantitative evaluation of general corrosion of Type 304 stainless steel in subcritical and  

E-Print Network [OSTI]

Quantitative evaluation of general corrosion of Type 304 stainless steel in subcritical the corrosion rate of Type 304 stainless steel (SS) in subcritical and supercritical environments. The EN

Benning, Liane G.

198

QUANTITATIVE STUDIES OF THERMAL SHOCK IN CERAMICS BASED ON A NOVEL TEST TECHNIQUE  

E-Print Network [OSTI]

QUANTITATIVE STUDIES OF THERMAL SHOCK IN CERAMICS BASED ON AQUANTITATIVE STUDIES OF THERMAL SHOCK IN CERAMICS BASED ON AAl 203). The thermal failure of another ceramic material (

Faber, K.T.

2013-01-01T23:59:59.000Z

199

E-Print Network 3.0 - amplicon quantitative pcr Sample Search...  

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

amplicon can be quantitatively detected in real time or at end point. By separating primer annealing from... sequencing double-stranded amplicons generated via conventional...

200

Depositional environments of the Mediterranean "Lower Evaporites" of the Messinian salinity crisis: Constraints from quantitative analyses  

E-Print Network [OSTI]

April 2008 Keywords: Messinian Mediterranean Sea modelling evaporite halite We use simple quantitative that the deep Mediterranean halite units could have been deposited under shallow conditions, assuming

Utrecht, Universiteit

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


201

Quantitative and dynamic measurements of biological fresh samples with X-ray phase contrast tomography  

Science Journals Connector (OSTI)

Quantitative measurements of biological fresh samples based on three-dimensional densitometry using X-ray phase contrast tomography are presented.

Hoshino, M.

2014-10-08T23:59:59.000Z

202

AN ANALYTICAL AND QUANTITATIVE ANALYSIS OF THE LASER-INDUCED INCANDESCENCE OF SOOT  

E-Print Network [OSTI]

AN ANALYTICAL AND QUANTITATIVE ANALYSIS OF THE LASER-INDUCED INCANDESCENCE OF SOOT A Thesis-INDUCED INCANDESCENCE OF SOOT Approved: _________________________ Jerry M. Seitzman, Chairman

Seitzman, Jerry M.

203

Coherence-Controlled Holographic Microscopy for Coherence-Gated Quantitative Phase Imaging  

Science Journals Connector (OSTI)

We show that the use of incoherent illumination in coherence-controlled holographic microscopy (CCHM) enables coherence-gated quantitative phase imaging of objects through turbid...

Slaby, Tomas; Kolman, Pavel; Dostal, Zbynek; Antos, Martin; Lostak, Martin; Krizova, Aneta; Collakova, Jana; Kollarova, Vera; Slaba, Michala; Vesely, Pavel; Chmelik, Radim

204

11.220 Quantitative Reasoning and Statistical Method for Planning I, Spring 2006  

E-Print Network [OSTI]

This course develops logical, empirically based arguments using statistical techniques and analytic methods. It covers elementary statistics, probability, and other types of quantitative reasoning useful for description, ...

Zegras, P. Christopher

205

Quantitative measurements of strain and birefringence with common-path polarization-sensitive optical coherence tomography  

Science Journals Connector (OSTI)

We demonstrate the first system for optical coherence tomography (OCT) that enables simultaneous measurement of quantitative birefringence and strain in biological samples using a...

Marvdashti, Tahereh; Duan, Lian; Lurie, Kristen L; Smith, Gennifer T; Ellerbee, Audrey K

2014-01-01T23:59:59.000Z

206

E-Print Network 3.0 - analysis quantitative pcr Sample Search...  

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

-qPCR quantitation of gene expression Detection (and... is not used primarily for forensic DNA ... Source: National Institute of Standards and Technology (NIST), Biochemical...

207

Estimation of genetic and environmental parameters of six broiler traits in two breeds of chickens and their reciprocal crosses by a series of diallel mating  

E-Print Network [OSTI]

.................................. 38 Livability................................................ 39 Body Weights and Measurements ............................ ^5 Body Conformation ......................................... ^9 Sex Differentials... Weight A rapid rate of growth is certainly the most important trait in a broiler. Body weight measured at the end of a period is a function of the initial weight and the rate of growth. Differences in the adult weight of various breeds are due...

Kan, Jimmy Hung-Kei

1958-01-01T23:59:59.000Z

208

Quantification of escalation effects in offshore quantitative risk assessment  

Science Journals Connector (OSTI)

Loss-of-containment events on offshore installations can lead to complex escalation effects, especially in congested modules, where the close proximity of processing equipment and control systems creates the potential for very many different escalation paths. Conventional risk analysis tools are not well suited to deriving and evaluating the large number of possibilities, relying on the risk analyst to devise and quantify a ‘representative’ set of scenarios. The danger is that the ‘representative’ scenarios lack realism, may be insufficiently detailed to support upgrade decisions, and tend towards ‘generic’ risk analysis. A novel computer simulation technique has therefore been developed which starts from a list of initiating loss-of-containment events and utilizes physical rule sets and consequence models to generate consistent and detailed accident scenarios from a basic platform description, comprising a collection of equipment items, structural elements and protective systems. The program has proved stable on application to a variety of offshore installations, including simple gas platforms, a typical deep sea oil and gas platform, and a semi-submersible production vessel. It eliminates the manual drafting and analysis of event trees, which is very laborious even when aided by interactive computer tools; and, because the risk model comprises factual information, rather than abstract concepts, it is much more accessible and amenable to scrutiny by discipline engineers, allowing operators to derive and maintain a genuinely ‘living’ quantitative risk assessment.

Mark Morris; Alan Miles; John Cooper

1994-01-01T23:59:59.000Z

209

Human factors issues in qualitative and quantitative safety analyses  

SciTech Connect (OSTI)

Humans are a critical and integral part of any operational system, be it a nuclear reactor, a facility for assembly or disassembling hazardous components, or a transportation network. In our concern over the safety of these systems, we often focus our attention on the hardware engineering components of such systems. However, experience has repeatedly demonstrated that it is often the human component that is the primary determinant of overall system safety. Both the nuclear reactor accidents at Chernobyl and Three Mile Island and shipping disasters such as the Exxon Valdez and the Herald of Free Enterprise accidents are attributable to human error. Concern over human contributions to system safety prompts us to include reviews of human factors issues in our safety analyses. In the conduct of Probabilistic Risk Assessments (PRAs), human factors issues are addressed using a quantitative method called Human Reliability Analysis (HRA). HRAs typically begin with the identification of potential sources of human error in accident sequences of interest. Human error analysis often employs plant and/or procedures walk-downs in which the analyst considers the ``goodness`` of procedures, training, and human-machine interfaces concerning their potential contribution to human error. Interviews with expert task performers may also be conducted. In the application of HRA, once candidate sources of human error have been identified, error probabilities are developed.

Hahn, H.A.

1993-10-01T23:59:59.000Z

210

Methods of quantitative matrix analysis of Zircaloy-2  

Science Journals Connector (OSTI)

The zirconium-based alloy Zircaloy-2 contains small amounts of iron, chromium and nickel dissolved in the matrix. Several attempts to measure these amounts have been made in the past, but the results are conflicting and inconclusive. The advent of wide angle, laser pulsed atom probe tomography motivates a new attempt to analyze the matrix. Large datasets are now easily obtained using laser pulsing but quantification is not straightforward due to rather complex mass spectra. Zircaloy-2 contains about 1 wt% tin, 0.1 wt% oxygen and trace amounts of Si, C and Al. Severe overlaps make quantification of any Fe+, Cr+ and Ni+ ions impossible. Quantification of Fe, Cr and Ni therefore requires that they appear as doubly charged ions only, and consequently the field must be kept high enough. In addition, adsorbed CO+ may appear at the main peak of Fe2+. In the paper a method is reported, which gives what we believe an accurate quantitative analysis of at least iron and chromium in the matrix.

M. Thuvander; H.-O. Andrén

2011-01-01T23:59:59.000Z

211

A Method for Quantitative Mapping of Thick Oil Spills Using Imaging Spectroscopy  

E-Print Network [OSTI]

....................................................................................................................................................14 Figures 1. Image of oil emulsion from the Deepwater Horizon oil spill in the Gulf of Mexico offA Method for Quantitative Mapping of Thick Oil Spills Using Imaging Spectroscopy By Roger N. Clark (AVIRIS) Team, 2010, A method for quantitative mapping of thick oil spills using imaging spectroscopy: U

Torgersen, Christian

212

Development of a simple quantitative test for lack of field emission orthodoxy  

Science Journals Connector (OSTI)

...117 Development of a simple quantitative test for lack of field emission orthodoxy Richard...describes development of a simple quantitative test for whether FE data are incompatible with...are internally self-consistent. This test is then applied to 19 post-1975 datasets...

2013-01-01T23:59:59.000Z

213

Comment on ``A quantitative framework for interpretation of basal ice facies formed by ice  

E-Print Network [OSTI]

heave would be expected to produce were revealed beneath the Kamb Ice Stream by the pioneering boreholeComment on ``A quantitative framework for interpretation of basal ice facies formed by ice quantitative framework for interpretation of basal ice facies formed by ice accretion over subglacial sediment

Worster, M. Grae

214

Fuel Cell Generation in Geo-Distributed Cloud Services: A Quantitative Study  

E-Print Network [OSTI]

Fuel Cell Generation in Geo-Distributed Cloud Services: A Quantitative Study Zhi Zhou1 Fangming Liu of fuel cell energy in cloud computing, yet it is unclear what and how much benefit it may bring. This paper, for the first time, attempts to quantitatively examine the benefits brought by fuel cell

Li, Baochun

215

The genetic control of avascular area in mouse oxygen-induced retinopathy  

E-Print Network [OSTI]

The genetic control of avascular area in mouse oxygen-induced retinopathy Bliss E. O’Bryhim,1,2 Jeff Radel,1,2,3 Stuart J. Macdonald,4 R.C. Andrew Symons1,2 1Department of Ophthalmology, University of Kansas Medical Center, Kansas City, KS; 2... exposure to hyperoxia, as well as quantitative trait loci on chromosomes 7 and 9 that modify susceptibility to OIR. Retinopathy of prematurity (ROP) is a leading cause of vision loss in children in both developed and developing countries [1–3]. ROP is a...

O'Bryhim, Bliss; Radel, Jeff; Macdonald, Stuart J.; Symons, R. C. Andrew

2012-02-08T23:59:59.000Z

216

Quantitative Assessment of Range Fluctuations in Charged Particle Lung Irradiation  

SciTech Connect (OSTI)

Purpose: Water equivalent path length (WEL) variations due to respiration can change the range of a charged particle beam and result in beam overshoot to critical organs or beam undershoot to tumor. We have studied range fluctuations by analyzing four-dimensional computed tomography data and quantitatively assessing potential beam overshoot. Methods and Materials: The maximal intensity volume is calculated by combining the gross tumor volume contours at each respiratory phase in the four-dimensional computed tomography study. The first target volume calculates the maximal intensity volume for the entire respiratory cycle (internal target volume [ITV]-radiotherapy [RT]), and the second target volume is the maximal intensity volume corresponding to gated RT (gated-RT, {approx}30% phase window around exhalation). A compensator at each respiratory phase is calculated. Two 'composite' compensators for ITV-RT and gated-RT are then designed by selecting the minimal compensator depth at the respective respiratory phase. These compensators are then applied to the four-dimensional computed tomography data to estimate beam penetration. Analysis metrics include range fluctuation and overshoot volume, both as a function of gantry angle. We compared WEL fluctuations observed in treating the ITV-RT versus gated-RT in 11 lung patients. Results: The WEL fluctuations were <21.8 mm-WEL and 9.5 mm-WEL for ITV-RT and gated-RT, respectively for all patients. Gated-RT reduced the beam overshoot volume by approximately a factor of four compared with ITV-RT. Such range fluctuations can affect the efficacy of treatment and result in an excessive dose to a distal critical organ. Conclusion: Time varying range fluctuation analysis provides information useful for determining appropriate patient-specific treatment parameters in charged particle RT. This analysis can also be useful for optimizing planning and delivery.

Mori, Shinichiro [Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA (United States)], E-mail: shinshin@nirs.go.jp; Wolfgang, John; Lu, H.-M.; Schneider, Robert; Choi, Noah C.; Chen, George T.Y. [Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA (United States)

2008-01-01T23:59:59.000Z

217

Evaluation of F1 Cows Sired by Brahman, Boran, and Tuli Bulls for Reproductive and Maternal Performance Traits and Cow Longevity  

E-Print Network [OSTI]

LONGEVITY A Thesis by CARL THOMAS MUNTEAN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of requirements for the degree of MASTER OF SCIENCE Approved by: Chair of Committee, James O. Sanders... and Maternal Performance Traits and Cow Longevity. (May 2011) Carl Thomas Muntean, B.S., Texas A&M University Chair of Advisory Committee: Dr. James O. Sanders Birth (BWT) (n = 1,335) and weaning weight...

Muntean, Carl

2011-08-08T23:59:59.000Z

218

Gabon black population data on the ten short tandem repeat loci D3S1358, VWA, D16S539, D2S1338, D8S1179, D21S11, D18S51, D19S433, TH01 and FGA  

Science Journals Connector (OSTI)

...Allele frequencies for ten short tandem repeat (STR) loci D3S1358, VWA, D16S539, D2S1338, D8S1179, D21S11, D18S51, D19S433, TH01 and FGA were determined in a Black African sample population from Gabon. All loc...

M. Steinlechner; K. Schmidt; H. G. Kraft…

2002-06-01T23:59:59.000Z

219

Quantitative analysis of radiological changes in alveolar bone around connected osseo-integrated dental implants and natural abutment teeth  

Science Journals Connector (OSTI)

To evaluate quantitatively the long-term changes in alveolar bone around toothimplant connections using a digital subtraction technique.

Akihiro Takashima DDS; Dr. Kazunori Yoshiura DDS; PhD; Kenji Tokumori…

2003-06-01T23:59:59.000Z

220

Finding the sources of missing heritability in a yeast cross  

Science Journals Connector (OSTI)

... loci with high statistical power. We find that the detected loci explain nearly the entire additive contribution to heritable variation for the traits studied. We also show that the contribution ... the population to be captured by GWAS. One recent proposal highlights the fact that non-additive interactions among loci (sometimes termed epistasis) may inflate heritability measures. Other proposed contributions ...

Joshua S. Bloom; Ian M. Ehrenreich; Wesley T. Loo; Thúy-Lan Vő Lite; Leonid Kruglyak

2013-02-03T23:59:59.000Z

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


221

Applying petroleum geophysics to astrophysics: Quantitative 4D seismic study of the solar interior  

E-Print Network [OSTI]

Applying petroleum geophysics to astrophysics: Quantitative 4D seismic study of another new branch of seismology recently developed in petroleum reservoir seismology is commonly known in the petroleum industry, differs from earlier

Crawford, Ian

222

Single molecule quantitation and sequencing of rare translocations using microfluidic nested digital PCR  

E-Print Network [OSTI]

of individual tumors. Here, we report the development and application of a bead-based hemi-nested microfluidic droplet digital PCR (dPCR) technology to achieve ‘quantitative’ measurement and single-molecule sequencing of somatically acquired carcinogenic...

Shuga, Joe; Zeng, Yong; Novak, Richard; Lan, Qing; Tang, Xiaojiang; Rothman, Nathaniel; Vermeulen, Roel; Li, Laiyu; Hubbard, Alan; Zhang, Luoping; Mathies, Richard A.; Smith, Martyn T.

2013-06-23T23:59:59.000Z

223

Spanish Translation of the Children's Hope Scale Using Quantitative Methods for Verifying Semantic Equivalence  

E-Print Network [OSTI]

Abstract The purpose of this study was to translate the Children's Hope Scale (CHS) from English to Spanish using quantitative methods in order to verify semantic equivalence of the adapted measure. The study utilized bilingual, English and Spanish...

Frehe-Torres, Victoria Elena

2010-02-23T23:59:59.000Z

224

BMA Probabilistic Quantitative Precipitation Forecasting over the Huaihe Basin Using TIGGE Multimodel Ensemble Forecasts  

Science Journals Connector (OSTI)

Bayesian model averaging (BMA) probability quantitative precipitation forecast (PQPF) models were established by calibrating their parameters using 1–7-day ensemble forecasts of 24-h accumulated precipitation, and observations from 43 ...

Jianguo Liu; Zhenghui Xie

2014-04-01T23:59:59.000Z

225

Distributed quantitative precipitation forecasts combining information from radar and numerical weather prediction model outputs  

E-Print Network [OSTI]

Applications of distributed Quantitative Precipitation Forecasts (QPF) range from flood forecasting to transportation. Obtaining QPF is acknowledged to be one of the most challenging areas in hydrology and meteorology. ...

Ganguly, Auroop Ratan

2002-01-01T23:59:59.000Z

226

Parent–offspring conflict and co-adaptation: behavioural ecology meets quantitative genetics  

Science Journals Connector (OSTI)

...would provide important new information concerning any selection on and evolution of parental supply and offspring demand response functions. Traditional quantitative genetics and behavioural ecology approaches implicitly assume that parental and...

2008-01-01T23:59:59.000Z

227

E-Print Network 3.0 - automated quantitative nuclear Sample Search...  

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

nuclear Search Powered by Explorit Topic List Advanced Search Sample search results for: automated quantitative nuclear Page: << < 1 2 3 4 5 > >> 1 s e c t i o n reinventing energy...

228

Quantitatively Depositing Viruses onto TEM Grids Jennifer Brum, Tucson Marine Phage Lab  

E-Print Network [OSTI]

1 Quantitatively Depositing Viruses onto TEM Grids Jennifer Brum, Tucson Marine Phage Lab April prevents wear caused by metal-on-metal grinding) a) put a tiny amount of Spinkote on a Kimwipe b) rub

Sullivan, Matthew B.

229

A quantitative equity strategy based on factors formed by industries in the S&P500  

E-Print Network [OSTI]

This paper presents and simulates a long-short market-neutral quantitative equity trading strategy for US stocks. First, economic intuition and academic researches for which this trading strategy is based upon will be ...

Liu, Jack Wen-Hao

2011-01-01T23:59:59.000Z

230

Machine Learning Enhancement of Storm-Scale Ensemble Probabilistic Quantitative Precipitation Forecasts  

E-Print Network [OSTI]

Machine Learning Enhancement of Storm-Scale Ensemble Probabilistic Quantitative Precipitation uncertainty. Machine learning methods can produce calibrated probabilistic forecasts from the raw ensemble and machine learning are working to address these challenges. Numerical weather prediction (NWP) models

Xue, Ming

231

Quantitative differences in tissue surface tension influence zebrafish germ layer positioning  

E-Print Network [OSTI]

Quantitative differences in tissue surface tension influence zebrafish germ layer positioning Eva surface tension, influences spatial positioning between zebrafish germ layer tissues. We show correlates with differences in tissue surface tension. We also show that germ layer tissues from untreated

JĂĽlicher, Frank

232

Multi-scale quantitative elastography and its application to blood pressure estimation  

E-Print Network [OSTI]

Elastography is a method that can be used to measure the elasticity of soft biological tissue and, ultimately, to detect cancerous tumors. In this thesis, quantitative compression based ultrasound elastography is developed ...

Zakrzewski, Aaron Michael

2013-01-01T23:59:59.000Z

233

Revised process for work zone decision-making based on quantitative performance measures  

E-Print Network [OSTI]

Work zones create one of the most challenging environments for drivers. Implementing work zones on urban freeways creates many issues, especially with respect to mobility. Decisions made regarding the work zone should be informed by quantitative...

Hartmann, Thomas Wayne

2008-10-10T23:59:59.000Z

234

Quantitative visualization of compressible turbulent shear flows using condensate-enhanced Rayleigh scattering  

E-Print Network [OSTI]

was based on laser scattering from particles of H2O or CO2 condensate that form in the wind tunnel nozzleQuantitative visualization of compressible turbulent shear flows using condensate-enhanced Rayleigh

Miles, Richard

235

A quantitative assessment of nuclear weapons proliferation risk utilizing probabilistic methods  

E-Print Network [OSTI]

A comparative quantitative assessment is made of the nuclear weapons proliferation risk between various nuclear reactor/fuel cycle concepts using a probabilistic method. The work presented details quantified proliferation ...

Sentell, Dennis Shannon, 1971-

2002-01-01T23:59:59.000Z

236

Direct and quantitative broadband absorptance micro/nano spectroscopy using FTIR and bilayer cantilever probes  

E-Print Network [OSTI]

Optical properties of micro/nano materials are important for many applications in biology, optoelectronics, and energy. In this thesis, a method is described to directly measure the quantitative absorptance spectra of ...

Hsu, Wei-Chun

2012-01-01T23:59:59.000Z

237

Development of a rapid method fluorescent biosenser to quantitate bioavailable methionine  

E-Print Network [OSTI]

is methionine, which, in the vast majority of animals, is the first limiting amino acid. Problems with both deficiencies and toxicities of methionine demand a precise way of quantitating this sulfur amino acid in feeds. Animal and digestibility assays...

Froelich, Clifford Anthony

2003-01-01T23:59:59.000Z

238

Continuous Improvement in the Leander ISD: A Quantitative and Qualitative Assessment of Culture and Core Values  

E-Print Network [OSTI]

fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY August 2010 Major Subject: Educational Administration CONTINUOUS IMPROVEMENT IN THE LEANDER ISD: A QUANTITATIVE AND QUALITATIVE ASSESSMENT OF CULTURE AND CORE... Committee Members, David A. Erlandson Mario S. Torres Lynn M. Burlbaw Head of Department, Fredrick M. Nafukho August 2010 Major Subject: Educational Administration iii ABSTRACT Continuous Improvement in the Leander ISD: A Quantitative...

Robinson, Joe E.

2011-10-21T23:59:59.000Z

239

Officer competency in the Texas Standardized Field Sobriety Testing Program: a quantitative study  

E-Print Network [OSTI]

OFFICER COMPETENCY IN THE TEXAS STANDARDIZED FIELD SOBRIETY TESTING PROGRAM: A QUANTITATIVE STUDY A Thesis by RODNEY JOSEPH MERKLEY Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December 2002 Major Subject' Educational Human Resource Development OFFICER COMPETENCY IN THE TEXAS STANDARDIZED FIELD SOBRIETY TESTING PROGRAM: A QUANTITATIVE STUDY A Thesis by RODNEY JOSEPH MERKLEY Submitted to Texas...

Merkley, Rodney Joseph

2012-06-07T23:59:59.000Z

240

Quantitative determination of mineral composition by powder x-ray diffraction  

DOE Patents [OSTI]

An external standard intensity ratio method is used for quantitatively determining mineralogic compositions of samples by x-ray diffraction. The method uses ratios of x-ray intensity peaks from a single run. Constants are previously determined for each mineral which is to be quantitatively measured. Ratios of the highest intensity peak of each mineral to be quantified in the sample and the highest intensity peak of a reference mineral contained in the sample are used to calculate sample composition.

Pawloski, G.A.

1984-08-10T23:59:59.000Z

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


241

Predicting the impacts of climate change on animal distributions: the importance of local adaptation and species' traits  

SciTech Connect (OSTI)

The geographic range limits of many species are strongly affected by climate and are expected to change under global warming. For species that are able to track changing climate over broad geographic areas, we expect to see shifts in species distributions toward the poles and away from the equator. A number of ecological and evolutionary factors, however, could restrict this shifting or redistribution under climate change. These factors include restricted habitat availability, restricted capacity for or barriers to movement, or reduced abundance of colonists due the perturbation effect of climate change. This research project examined the last of these constraints - that climate change could perturb local conditions to which populations are adapted, reducing the likelihood that a species will shift its distribution by diminishing the number of potential colonists. In the most extreme cases, species ranges could collapse over a broad geographic area with no poleward migration and an increased risk of species extinction. Changes in individual species ranges are the processes that drive larger phenomena such as changes in land cover, ecosystem type, and even changes in carbon cycling. For example, consider the poleward range shift and population outbreaks of the mountain pine beetle that has decimated millions of acres of Douglas fir trees in the western US and Canada. Standing dead trees cause forest fires and release vast quantities of carbon to the atmosphere. The beetle likely shifted its range because it is not locally adapted across its range, and it appears to be limited by winter low temperatures that have steadily increased in the last decades. To understand range and abundance changes like the pine beetle, we must reveal the extent of adaptive variation across species ranges - and the physiological basis of that adaptation - to know if other species will change as readily as the pine beetle. Ecologists tend to assume that range shifts are the dominant response of species to climate change, but our experiments suggest that other processes may act in some species that reduce the likelihood of geographic range change. In the first part of our DOE grant (ending 2008) we argued that the process of local adaptation of populations within a species range, followed by climatic changes that occur too quickly for adaptive evolution, is an underappreciated mechanism by which climate change could affect biodiversity. When this process acts, species ranges may not shift readily toward the poles, slowing the rate of species and biome change. To test this claim, we performed an experiment comparing core and peripheral populations in a series of field observations, translocation experiments, and genetic analyses. The papers in Appendix A were generated from 2005-2008 funding. In the second part of the DOE grant (ending 2011) we studied which traits promote population differentiation and local adaptation by building genomic resources for our study species and using these resources to reveal differences in gene expression in peripheral and core populations. The papers in Appendix B were generated from 2008-2011 funding. This work was pursued with two butterfly species that have contrasting life history traits (body size and resource specialization) and occupy a common ecosystem and a latitudinal range. These species enabled us to test the following hypotheses using a single phylogenetic group.

HELLMANN, J. J.; LOBO, N. F.

2011-12-20T23:59:59.000Z

242

Advances in European sea bass genomics and future perspectives  

Science Journals Connector (OSTI)

Abstract Only recently available sequenced and annotated teleost fish genomes were restricted to a few model species, none of which were for aquaculture. The application of marker assisted selection for improved production traits had been largely restricted to the salmon industry and genetic and Quantitative Trait Loci (QTL) maps were available for only a few species. With the advent of next generation sequencing the landscape is rapidly changing and today the genomes of several aquaculture species have been sequenced. The European sea bass, Dicentrarchus labrax, is a good example of a commercially important aquaculture species in Europe for which in the last decade a wealth of genomic resources, including a chromosomal scale genome assembly, physical and linkage maps as well as relevant QTL have been generated. The current challenge is to stimulate the uptake of the resources by the industry so that the full potential of this scientific endeavor can be exploited and produce benefits for producers and the public alike.

Bruno Louro; Deborah M. Power; Adelino V.M. Canario

2014-01-01T23:59:59.000Z

243

Quantitative Risk reduction estimation Tool For Control Systems, Suggested Approach and Research Needs  

SciTech Connect (OSTI)

For the past year we have applied a variety of risk assessment technologies to evaluate the risk to critical infrastructure from cyber attacks on control systems. More recently, we identified the need for a stand alone control system risk reduction estimation tool to provide owners and operators of control systems with a more useable, reliable, and credible method for managing the risks from cyber attack. Risk is defined as the probability of a successful attack times the value of the resulting loss, typically measured in lives and dollars. Qualitative and ad hoc techniques for measuring risk do not provide sufficient support for cost benefit analyses associated with cyber security mitigation actions. To address the need for better quantitative risk reduction models we surveyed previous quantitative risk assessment research; evaluated currently available tools; developed new quantitative techniques [17] [18]; implemented a prototype analysis tool to demonstrate how such a tool might be used; used the prototype to test a variety of underlying risk calculational engines (e.g. attack tree, attack graph); and identified technical and research needs. We concluded that significant gaps still exist and difficult research problems remain for quantitatively assessing the risk to control system components and networks, but that a useable quantitative risk reduction estimation tool is not beyond reach.

Miles McQueen; Wayne Boyer; Mark Flynn; Sam Alessi

2006-03-01T23:59:59.000Z

244

Manual for Quantitative Evaluation of the Co-Benefits Approach to Climate  

Open Energy Info (EERE)

Manual for Quantitative Evaluation of the Co-Benefits Approach to Climate Manual for Quantitative Evaluation of the Co-Benefits Approach to Climate Change Jump to: navigation, search LEDSGP green logo.png FIND MORE DIA TOOLS This tool is part of the Development Impacts Assessment (DIA) Toolkit from the LEDS Global Partnership. Tool Summary Name: Manual for Quantitative Evaluation of the Co-Benefits Approach to Climate Change Agency/Company /Organization: Ministry of Environment, Japan Sector: Climate, Energy User Interface: Other Complexity/Ease of Use: Moderate Cost: Free Related Tools Global Atmospheric Pollution Forum Air Pollutant Emission Inventory Manual for Social Impact Assessment of Land-Based Carbon Projects SEAGA Intermediate Level Handbook ... further results Manual that addresses the co-benefits approach to climate change; by

245

ANSI/ASHRAE/IES Standard 90.1-2010 Final Determination Quantitative  

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

2010 Final Determination Quantitative 2010 Final Determination Quantitative Analysis The U.S. Department of Energy (DOE) conducted a final quantitative analysis to assess whether buildings constructed according to the requirements of ASHRAE Standard 90.1-2010 would result in energy savings compared with buildings constructed to ASHRAE Standard 90.1- 2007. The final analysis considered each of the 109 addenda to ASHRAE Standard 90.1-2007 that were included in ASHRAE Standard 90.1- 2010. All 109 addenda processed by ASHRAE in the creation of ASHRAE Standard 90.1-2010 from ASHRAE Standard 90.1-2007 were reviewed by DOE, and their combined impact on a suite of 16 building prototype models in 15 ASHRAE climate zones was considered. Most addenda were deemed to have little quantifiable impact on building efficiency for

246

Quantitative Nuclear Magnetic Resonance Spectroscopy as a Tool To Evaluate Chemical Modification of Deep Hydrotreated Recycled Lube Oils  

Science Journals Connector (OSTI)

Quantitative Nuclear Magnetic Resonance Spectroscopy as a Tool To Evaluate Chemical Modification of Deep Hydrotreated Recycled Lube Oils ... Argonne National Laboratory, Argonne, Illinois 60439, United States ...

John V. Muntean; Joseph A. Libera; Seth W. Snyder; Tianpin Wu; Donald C. Cronauer

2012-12-13T23:59:59.000Z

247

Quantitative Measurement of XLR11 and UR-144 in Oral Fluid by LC–MS-MS  

Science Journals Connector (OSTI)

......quantitative identification of drugs of abuse in oral fluid, including several...over-the-counter drugs, drugs of abuse and some prescription drugs...Oral fluid testing for drugs of abuse. Clinical Chemistry (2009...UR-144 in products sold via the Internet: identification of related......

Piyadarsha Amaratunga; Christopher Thomas; Bridget Lorenz Lemberg; Dave Lemberg

2014-01-01T23:59:59.000Z

248

Quantitative Analysis of Ternary Vapor Mixtures Using a Microcantilever-Based Electronic Nose  

SciTech Connect (OSTI)

The authors report the identification and quantification of the components of a ternary vapor mixture using a microcantilever-based electronic nose. An artificial neural network was used for pattern recognition. Dimethyl methyl phosphonate vapor in ppb concentrations and water and ethanol vapors in ppm concentrations were quantitatively identified either individually or in binary and ternary mixtures at varying concentrations.

Pinnaduwage, Lal A [ORNL; Zhao, Weichang [ORNL; Gehl, Anthony C [ORNL; Allman, Steve L [ORNL

2007-01-01T23:59:59.000Z

249

QUANTITATIVE DAMAGE ASSESSMENT OF HYBRID COMPOSITE WIND TURBINE BLADES BY ENERGY BASED ACOUSTIC EMISSION SOURCE  

E-Print Network [OSTI]

energy with higher efficiency and cost-effective considerations, the size of the wind turbine blade hasQUANTITATIVE DAMAGE ASSESSMENT OF HYBRID COMPOSITE WIND TURBINE BLADES BY ENERGY BASED ACOUSTIC in the wind turbine blade. It was tried to apply a new source location method, which has a developed algorithm

Boyer, Edmond

250

Quantitative Model of Price Diffusion and Market Friction Based on Trading as a Mechanistic Random Process  

E-Print Network [OSTI]

Quantitative Model of Price Diffusion and Market Friction Based on Trading as a Mechanistic Random 2002; published 13 March 2003) We model trading and price formation in a market under the assumption for the most basic properties of markets, such as the diffusion rate of prices (which is the standard measure

251

Quantitative Analysis of Transmission Power Control in Wireless Ad-hoc Networks  

E-Print Network [OSTI]

1 Quantitative Analysis of Transmission Power Control in Wireless Ad-hoc Networks Seung-Jong Park the issue of transmission power con- trol in wireless ad-hoc networks. In general, it is assumed that minimum transmission power achieves the optimal throughput of an ad-hoc network because it produces

Park, Seung-Jong "Jay"

252

Climate change and the socioeconomics of global food production: A quantitative analysis  

E-Print Network [OSTI]

1 Climate change and the socioeconomics of global food production: A quantitative analysis of how, Andrew J. Dougill and Piers M. Forster August 2010 Centre for Climate Change Economics and Policy Working Paper No. 29 #12;2 The Centre for Climate Change Economics and Policy (CCCEP) was established

Rambaut, Andrew

253

Assessment of a portable device for the quantitative measurement of ankle joint stiffness in spastic individuals  

E-Print Network [OSTI]

Assessment of a portable device for the quantitative measurement of ankle joint stiffness-rater reliability. The device could easily distinguish between stiff and control ankle joints. A portable device can be a useful diagnostic tool to obtain reliable information of stiffness for the ankle joint. a b

Gorassini, Monica

254

Impact Assessment of Abiotic Resources in LCA: Quantitative Comparison of Selected Characterization Models  

Science Journals Connector (OSTI)

Impact Assessment of Abiotic Resources in LCA: Quantitative Comparison of Selected Characterization Models ... Resources have received significant attention in recent years resulting in development of a wide range of resource depletion indicators within life cycle assessment (LCA). ... Finally, we classify the existing methods into three groups, according to method focus and modeling approach, to aid method selection within LCA. ...

Jakob T. Rřrbech; Carl Vadenbo; Stefanie Hellweg; Thomas F. Astrup

2014-09-10T23:59:59.000Z

255

QUANTITATIVE BOUNDS ON THE DISCRETE SPECTRUM OF NON SELF-ADJOINT QUANTUM  

E-Print Network [OSTI]

A55. Key words and phrases. Non self-adjoint relatively compact perturbations of self- adjoint compact perturbation with respect to the self- adjoint operator H0, then the Weyl's criterionQUANTITATIVE BOUNDS ON THE DISCRETE SPECTRUM OF NON SELF-ADJOINT QUANTUM MAGNETIC HAMILTONIANS

Boyer, Edmond

256

A Stroke Severity Monitoring System Based on Quantitative Modified Multiscale Entropy  

E-Print Network [OSTI]

A Stroke Severity Monitoring System Based on Quantitative Modified Multiscale Entropy Wei-Jung Jou1, Taiwan (R.O.C) 2 Stroke center and Department of Neurology, National Taiwan University Hospital (NTUH, Taipei, Taiwan (R.O.C) Abstract Stroke is the leading cause of death and disability worldwide

Hung, Shih-Hao

257

Upper bounds and asymptotics in a quantitative version of the Oppenheim conjecture.  

E-Print Network [OSTI]

Upper bounds and asymptotics in a quantitative version of the Oppenheim conjecture. Alex Eskin. The Oppenheim conjecture, proved by G.A. Margulis (cf. [Mar2, Mar3, Mar4]) states that if n â?? 3, and Q, the Oppenheim conjecture enjoyed attention and many studies, mostly using analytic number theory methods. See

Eskin, Alex

258

Upper bounds and asymptotics in a quantitative version of the Oppenheim conjecture.  

E-Print Network [OSTI]

Upper bounds and asymptotics in a quantitative version of the Oppenheim variables. Let LQ = Q(* *Zn) denote the set of values of Q at integral points. The Oppenheim conjecture, the Oppenheim conjecture enjoyed attention and many studies, mostly using analy* *tic number theory methods

Eskin, Alex

259

Raman intensity measurements of single-walled carbon nanotube suspensions as a quantitative technique  

E-Print Network [OSTI]

Raman intensity measurements of single-walled carbon nanotube suspensions as a quantitative, Biological and Materials Engineering, Carbon Nanotube Technology Center (CANTEC), University of Oklahoma, 100 the purity of single-walled carbon nanotube (SWCNT) bulk samples based on Raman spectroscopy is reported

Resasco, Daniel

260

Journal of Quantitative Spectroscopy & Radiative Transfer 64 (2000) 255}273  

E-Print Network [OSTI]

s is the minimum of the total cross-section set, and consider the (vector) transport equation * * ( , )# ( , )" 1 2Journal of Quantitative Spectroscopy & Radiative Transfer 64 (2000) 255}273 A discrete-ordinates solution for multigroup transport theory with upscattering C.E. Siewert Mathematics Department, North

Siewert, Charles E.

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


261

A Quantitative Analysis of Disk Drive Power Management in Portable Computers  

E-Print Network [OSTI]

the question of power management begins with an analysis of where the energy is being consumed. Table 1 gives) Percent of Total Display Compaq monochrome lite25c 3.5 68% Disk Drive (105 Mbytes) Maxtor MXL­105 III 1 of inactivity. In this paper, we perform a quantitative analysis of the potential costs and benefits of spinning

Anderson, Tom

262

A Simulink Hybrid Heart Model for Quantitative Verification of Cardiac Pacemakers  

E-Print Network [OSTI]

A Simulink Hybrid Heart Model for Quantitative Verification of Cardiac Pacemakers Taolue Chen Mereacre Department of Computer Science University of Oxford, UK ABSTRACT We develop a novel hybrid heart. The heart model is formulated at the level of cardiac cells, can be adapted to patient data, and incorpo

Oxford, University of

263

ANSI/ASHRAE/IES Standard 90.1-2013 Preliminary Determination: Quantitative Analysis  

SciTech Connect (OSTI)

This report provides a preliminary quantitative analysis to assess whether buildings constructed according to the requirements of ANSI/ASHRAE/IES Standard 90.1-2013 would result in energy savings compared with buildings constructed to ANSI/ASHRAE/IES Standard 90.1-2010.

Halverson, Mark A.; Rosenberg, Michael I.; Wang, Weimin; Zhang, Jian; Mendon, Vrushali V.; Athalye, Rahul A.; Xie, YuLong; Hart, Reid; Goel, Supriya

2014-03-01T23:59:59.000Z

264

QUANTITATIVE MICROBIAL RISK ASSESSMENT OF ORGANIC WASTE MANAGEMENT PRACTICES IN A PERI-URBAN COMMUNITY  

E-Print Network [OSTI]

in dose-response assessment in QMRA. The risks were significantly higher than the acceptable risk level defined by USEPA and WHO for drinking water, which was used as a guideline acceptable risk in this studyi QUANTITATIVE MICROBIAL RISK ASSESSMENT OF ORGANIC WASTE MANAGEMENT PRACTICES IN A PERI

Richner, Heinz

265

QUANTITATIVE EVALUATION OF NEURAL NETWORKS FOR NDE APPLICATIONS USING THE ROC CURVE  

E-Print Network [OSTI]

1 QUANTITATIVE EVALUATION OF NEURAL NETWORKS FOR NDE APPLICATIONS USING THE ROC CURVE Mackay A. E waveform identification in NDE equipment, and to compare neural network performance with other methods. NDE-based scheme in classifying real-world eddy current data collected from an aircraft wheel NDE system. KEY WORDS

MacIver, Malcolm A.

266

Quantitative Analysis of Peristaltic and Segmental Motion In Vivo in the Rat Small Intestine Using Dynamic  

E-Print Network [OSTI]

Quantitative Analysis of Peristaltic and Segmental Motion In Vivo in the Rat Small Intestine Using the utility of MRI to quan- titatively analyze these motions in the jejunum region of anes- thetized rats (N 6- and microscale mixing of the food chyme. Both peristaltic and segmental motions are essential for the absorption

Brasseur, James G.

267

Photoemission currentspacecraft voltage relation: Key to routine, quantitative low-energy plasma measurements  

E-Print Network [OSTI]

Photoemission current�spacecraft voltage relation: Key to routine, quantitative low-energy plasma measurements J. D. Scudder and Xuejun Cao Department of Physics and Astronomy, University of Iowa, Iowa City F/C. The photoemission current function is found to be time independent using nearly 10 months of GGS-Polar data from

California at Berkeley, University of

268

Teaching Energy Balance using Round Numbers: A Quantitative Approach to the Greenhouse Effect and Global Warming  

E-Print Network [OSTI]

Teaching Energy Balance using Round Numbers: A Quantitative Approach to the Greenhouse Effect, 2003 Abstract The idea of energy balance used to explain the greenhouse effect and global warming and astronomy curricula. The idea of energy balance is used to explain the greenhouse effect and global warming

Blais, Brian

269

Towards the quantitative analysis of the electron holographic phase images of electrically biased metal tips  

E-Print Network [OSTI]

were acquired at an accelerating voltage of 300 kV using an FEI Titan field emission gun TEM equipped be carried out quantitatively using off-axis electron holography in the transmission electron microscope (TEM by considering the electrostatic potential generated by a line of charges with a density that increases linearly

Dunin-Borkowski, Rafal E.

270

An integrated environmental modeling framework for performing Quantitative Microbial Risk Assessments  

Science Journals Connector (OSTI)

Standardized methods are often used to assess the likelihood of a human-health effect from exposure to a specified hazard, and inform opinions and decisions about risk management and communication. A Quantitative Microbial Risk Assessment (QMRA) is specifically ... Keywords: Integrated environmental modeling, Manure, Pathogens, QMRA, Risk assessment, Watershed modeling

Gene Whelan, Keewook Kim, Mitch A. Pelton, Jeffrey A. Soller, Karl J. Castleton, Marirosa Molina, Yakov Pachepsky, Richard Zepp

2014-05-01T23:59:59.000Z

271

The Application of Traits-Based Assessment Approaches to Estimate the Effects of Hydroelectric Turbine Passage on Fish Populations  

SciTech Connect (OSTI)

One of the most important environmental issues facing the hydropower industry is the adverse impact of hydroelectric projects on downstream fish passage. Fish that migrate long distances as part of their life cycle include not only important diadromous species (such as salmon, shads, and eels) but also strictly freshwater species. The hydropower reservoirs that downstream-moving fish encounter differ greatly from free-flowing rivers. Many of the environmental changes that occur in a reservoir (altered water temperature and transparency, decreased flow velocities, increased predation) can reduce survival. Upon reaching the dam, downstream-migrating fish may suffer increased mortality as they pass through the turbines, spillways and other bypasses, or turbulent tailraces. Downstream from the dam, insufficient environmental flow releases may slow downstream fish passage rates or decrease survival. There is a need to refine our understanding of the relative importance of causative factors that contribute to turbine passage mortality (e.g., strike, pressure changes, turbulence) so that turbine design efforts can focus on mitigating the most damaging components. Further, present knowledge of the effectiveness of turbine improvements is based on studies of only a few species (mainly salmon and American shad). These data may not be representative of turbine passage effects for the hundreds of other fish species that are susceptible to downstream passage at hydroelectric projects. For example, there are over 900 species of fish in the United States. In Brazil there are an estimated 3,000 freshwater fish species, of which 30% are believed to be migratory (Viana et al. 2011). Worldwide, there are some 14,000 freshwater fish species (Magurran 2009), of which significant numbers are susceptible to hydropower impacts. By comparison, in a compilation of fish entrainment and turbine survival studies from over 100 hydroelectric projects in the United States, Winchell et al. (2000) found useful turbine passage survival data for only 30 species. Tests of advanced hydropower turbines have been limited to seven species - Chinook and coho salmon, rainbow trout, alewife, eel, smallmouth bass, and white sturgeon. We are investigating possible approaches for extending experimental results from the few tested fish species to predict turbine passage survival of other, untested species (Cada and Richmond 2011). In this report, we define the causes of injury and mortality to fish tested in laboratory and field studies, based on fish body shape and size, internal and external morphology, and physiology. We have begun to group the large numbers of unstudied species into a small number of categories, e.g., based on phylogenetic relationships or ecological similarities (guilds), so that subsequent studies of a few representative species (potentially including species-specific Biological Index Testing) would yield useful information about the overall fish community. This initial effort focused on modifying approaches that are used in the environmental toxicology field to estimate the toxicity of substances to untested species. Such techniques as the development of species sensitivity distributions (SSDs) and Interspecies Correlation Estimation (ICE) models rely on a considerable amount of data to establish the species-toxicity relationships that can be extended to other organisms. There are far fewer studies of turbine passage stresses from which to derive the turbine passage equivalent of LC{sub 50} values. Whereas the SSD and ICE approaches are useful analogues to predicting turbine passage injury and mortality, too few data are available to support their application without some form of modification or simplification. In this report we explore the potential application of a newer, related technique, the Traits-Based Assessment (TBA), to the prediction of downstream passage mortality at hydropower projects.

Cada, Glenn F [ORNL; Schweizer, Peter E [ORNL

2012-04-01T23:59:59.000Z

272

Comparison of blood flow models and acquisitions for quantitative myocardial perfusion estimation from dynamic CT  

Science Journals Connector (OSTI)

Myocardial blood flow (MBF) can be estimated from dynamic contrast enhanced (DCE) cardiac CT acquisitions, leading to quantitative assessment of regional perfusion. The need for low radiation dose and the lack of consensus on MBF estimation methods motivates this study to refine the selection of acquisition protocols and models for CT-derived MBF. DCE cardiac CT acquisitions were simulated for a range of flow states (MBF = 0.5, 1, 2, 3 ml (min g)?1, cardiac output = 3, 5, 8 L min?1). Patient kinetics were generated by a mathematical model of iodine exchange incorporating numerous physiological features including heterogenenous microvascular flow, permeability and capillary contrast gradients. CT acquisitions were simulated for multiple realizations of realistic x-ray flux levels. CT acquisitions that reduce radiation exposure were implemented by varying both temporal sampling (1, 2, and 3 s sampling intervals) and tube currents (140, 70, and 25 mAs). For all acquisitions, we compared three quantitative MBF estimation methods (two-compartment model, an axially-distributed model, and the adiabatic approximation to the tissue homogeneous model) and a qualitative slope-based method. In total, over 11 000 time attenuation curves were used to evaluate MBF estimation in multiple patient and imaging scenarios. After iodine-based beam hardening correction, the slope method consistently underestimated flow by on average 47.5% and the quantitative models provided estimates with less than 6.5% average bias and increasing variance with increasing dose reductions. The three quantitative models performed equally well, offering estimates with essentially identical root mean squared error (RMSE) for matched acquisitions. MBF estimates using the qualitative slope method were inferior in terms of bias and RMSE compared to the quantitative methods. MBF estimate error was equal at matched dose reductions for all quantitative methods and range of techniques evaluated. This suggests that there is no particular advantage between quantitative estimation methods nor to performing dose reduction via tube current reduction compared to temporal sampling reduction. These data are important for optimizing implementation of cardiac dynamic CT in clinical practice and in prospective CT MBF trials.

Michael Bindschadler; Dimple Modgil; Kelley R Branch; Patrick J La Riviere; Adam M Alessio

2014-01-01T23:59:59.000Z

273

Analysis of 129I in Groundwater Samples: Direct and Quantitative Results below the Drinking Water Standard  

SciTech Connect (OSTI)

Due to its long half-life (15.7 million years) and relatively unencumbered migration in subsurface environments, 129I has been recognized as a contaminant of concern at numerous federal, private, and international facilities. In order to understand the long-term risk associated with 129I at these locations, quantitative analysis of groundwater samples must be performed. However, the ability to quantitatively assess the 129I content in groundwater samples requires specialized extraction and sophisticated analytical techniques, which are complicated and not always available to the general scientific community. This paper highlights an analytical method capable of directly quantifying 129I in groundwater samples at concentrations below the MCL without the need for sample pre-concentration. Samples were analyzed on a Perkin Elmer ELAN DRC II ICP-MS after minimal dilution using O2 as the reaction gas. Analysis of continuing calibration verification standards indicated that the DRC mode could be used for quantitative analysis of 129I in samples below the drinking water standard (0.0057 ng/ml or 1 pCi/L). The low analytical detection limit of 129I analysis in the DRC mode coupled with minimal sample dilution (1.02x) resulted in a final sample limit of quantification of 0.0051 ng/ml. Subsequent analysis of three groundwater samples containing 129I resulted in fully quantitative results in the DRC mode, and spike recovery analyses performed on all three samples confirmed that the groundwater matrix did not adversely impact the analysis of 129I in the DRC mode. This analytical approach has been proven to be a cost-effective, high-throughput technique for the direct, quantitative analysis of 129I in groundwater samples at concentrations below the current MCL.

Brown, Christopher F.; Geiszler, Keith N.; Lindberg, Michael J.

2007-03-03T23:59:59.000Z

274

Analysis on the Go: Quantitation of Drugs of Abuse in Dried Urine with Digital Microfluidics and Miniature Mass Spectrometry  

E-Print Network [OSTI]

Analysis on the Go: Quantitation of Drugs of Abuse in Dried Urine with Digital Microfluidics the development of a method coupling microfluidics and a miniature mass spectrometer, applied to quantitation of drugs of abuse in urine. A custom digital microfluidic system was designed to deliver droplets

Zandstra, Peter W.

275

The effects of thermal and hydric environments on hatching success, embryonic use of energy and hatchling traits in a colubrid snake, Elaphe carinata  

Science Journals Connector (OSTI)

We examined the effects of thermal and hydric environments on hatching success, the embryonic use of energy and hatchling traits in a colubrid snake, Elaphe carinata. The eggs were incubated at four temperatures ranging from 24 to 32°C on substrates with water potentials of 0 and ?220 kPa using a 4×2 factorial design. Both thermal and hydric environments affected the water exchange between eggs and their surroundings. Eggs incubated in wetter substrates gained mass throughout the course of incubation, whereas eggs in drier substrates gained mass during the first half of incubation and lost mass thereafter. Hatching success was noticeably higher at 26 and 30°C than at 24 and 32°C, but among treatments, differences in hatching success were not significant. Temperature significantly affected the duration of incubation and most hatchling traits examined. Deformed hatchlings were found in all temperature treatments, with more deformities observed at 32°C. Hatchlings from eggs incubated at different temperatures differed in wet body mass, but the differences stemmed mainly from variation in water contents. Embryos at different temperatures completed development at nearly the same expenditure of energy and catabolized nearly the same amount of lipids, but hatchlings from different temperatures differed in the development condition of carcass at hatching. Hatchlings from eggs incubated at 26°C were larger in SVL than those from other higher or lower incubation temperatures, characteristically having larger carcasses; hatchlings from 32°C eggs were smaller in SVL and had smaller carcasses but larger residual yolks than those from lower incubation temperatures. Hatchlings from eggs incubated at 24°C were shorter in tail length but greater in size (SVL)-specific body wet mass than those from higher incubation temperatures. Within the range from ?220 to 0 kPa, the substrate water potential did not affect hatching success, the embryonic use of energy and all hatchling traits examined, and the effects of temperature were independent of the effects of substrate water potential. Therefore, our data add evidence showing that embryonic development in reptiles with pliable-shelled eggs is relatively insensitive to variation in hydric environments during incubation.

Xiang Ji; Wei-Guo Du

2001-01-01T23:59:59.000Z

276

Strategic Sequencing for State Distributed PV Policies: A Quantitative Analysis of Policy Impacts and Interactions  

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

Strategic Sequencing for State Strategic Sequencing for State Distributed PV Policies: A Quantitative Analysis of Policy Impacts and Interactions V.A. Krasko and E. Doris National Renewable Energy Laboratory Technical Report NREL/TP-7A30-56428 October 2012 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Strategic Sequencing for State Distributed PV Policies: A Quantitative Analysis of Policy Impacts and Interactions V.A. Krasko and E. Doris National Renewable Energy Laboratory Prepared under Task No. SM12.1070

277

Quantitative, non-invasive imaging of radiation-induced DNA double strand breaks in vivo  

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

Quantitative, non-invasive imaging of radiation-induced DNA double strand breaks in vivo Quantitative, non-invasive imaging of radiation-induced DNA double strand breaks in vivo Wenrong Li 1, , Fang Li 1 , Qian Huang 1 , Jingping Shen 1 , Frank Wolf 1 , Yujun He 1 , Xinjian Liu 1 , Y. Angela Hu 1 , Joel. S. Bedford 5 , and Chuan-Yuan Li 1,2,* Departments of 1 Radiation Oncology, 2 Pharmacology, University of Colorado School of Medicine, Aurora, Colorado, USA; 3 Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA DNA double strand breaks are a major form of DNA damage and a key mechanism through which radiotherapy and some chemotherapeutic agents kill cancer cells. Despite its importance, measuring DNA double strand breaks is still a tedious task that is normally carried out by gel electrophoresis or immunofluorescence staining. Here we report a novel approach to image and

278

Financing U.S. Renewable Energy Projects Through Public Capital Vehicles: Qualitative and Quantitative Benefits  

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

Financing U.S. Renewable Financing U.S. Renewable Energy Projects Through Public Capital Vehicles: Qualitative and Quantitative Benefits Michael Mendelsohn and David Feldman Technical Report NREL/TP-6A20-58315 April 2013 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Financing U.S. Renewable Energy Projects Through Public Capital Vehicles: Qualitative and Quantitative Benefits Michael Mendelsohn and David Feldman Prepared under Task No. SM13.1030

279

ASHRAE Standard 90.1-1999 Quantitative Analysis Worksheet | Building Energy  

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

1999 Quantitative Analysis Worksheet 1999 Quantitative Analysis Worksheet This worksheet aggregates the results of building energy simulations used in support of the U.S. Department of Energy's determination regarding whether ASHRAE Standard 90.1-1999 will improve energy efficiency in commercial buildings. This determination is required by Section 304 of the Energy Conservation and Production Act. Publication Date: Monday, January 30, 2006 BECP_90_1SavingsAnalysis(050101update).xls 90_1savingsanalysis.zip Document Details Focus: Regulatory Building Type: Commercial Code Referenced: ASHRAE Standard 90.1-1999 Document type: Analysis Determination Target Audience: Federal Official State Official Contacts Web Site Policies U.S. Department of Energy USA.gov Last Updated: Tuesday, December 10, 2013 - 13:20

280

Quantitative Visualization of ChIP-chip Data by Using Linked Views  

SciTech Connect (OSTI)

Most analyses of ChIP-chip in vivo DNA binding have focused on qualitative descriptions of whether genomic regions are bound or not. There is increasing evidence, however, that factors bind in a highly overlapping manner to the same genomic regions and that it is quantitative differences in occupancy on these commonly bound regions that are the critical determinants of the different biological specificity of factors. As a result, it is critical to have a tool to facilitate the quantitative visualization of differences between transcription factors and the genomic regions they bind to understand each factor's unique roles in the network. We have developed a framework which combines several visualizations via brushing-and-linking to allow the user to interactively analyze and explore in vivo DNA binding data of multiple transcription factors. We describe these visualization types and also provide a discussion of biological examples in this paper.

Huang, Min-Yu; Weber, Gunther; Li, Xiao-Yong; Biggin, Mark; Hamann, Bernd

2010-11-05T23:59:59.000Z

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


281

Quantitative determination of local potential values in inhomogeneously doped semiconductors by scanning tunneling microscopy  

Science Journals Connector (OSTI)

Local potential changes arising from nanoscale three-dimensional spatial fluctuations in the dopant distribution in Zn-doped GaAs were investigated quantitatively by scanning tunneling microscopy and spectroscopy at (110) cleavage surfaces. Tunneling spectra measured in areas with different local doping concentration show apparent shifts of the valence band edge and apparent changes of the band gap. A quantitative analysis, combined with band bending and tunnel current simulations, demonstrates that these effects arise from tip-induced band bending that modulates the real potential changes. It is illustrated how exact potential changes between locally high and low doped areas can be determined. It is found that the local potential fluctuations in three-dimensionally doped semiconductors are approximately one order of magnitude smaller that those observed in two-dimensionally doped semiconductors.

P. H. Weidlich, R. E. Dunin-Borkowski, and Ph. Ebert

2011-08-29T23:59:59.000Z

282

Identification and quantitation of opium alkaloids in somatic embryos of Papaver somniferum L.  

E-Print Network [OSTI]

of Committee) F. Pong (Member) T. L. Thomas (Member) T. C. Hall (Head of Department) Msy 1985 ABSTRACT Identification and Quantitation of Opium Alkaloids in Somatic Embryos of ~pa aver somniferum L. (May 1985) Samuel Galewsky, B. S. , Texas A...&M University; Chairman of Advisory Committee: Dr. C. L. Messier The morphinane alkaloids, morphine, codeine, and thebaine are produced in internal secretory cells, called laticifers, of the opium poppy, ~pa aver somniferum L. The presence of laticifers...

Galewsky, Samuel

2012-06-07T23:59:59.000Z

283

Apparatus and method for quantitative assay of generic transuranic wastes from nuclear reactors  

DOE Patents [OSTI]

A combination of passive and active neutron measurements which yields quantitative information about the isotopic composition of transuranic wastes from nuclear power or weapons material manufacture reactors is described. From the measurement of prompt and delayed neutron emission and the incidence of two coincidentally emitted neutrons from induced fission of fissile material in the sample, one can quantify /sup 233/U, /sup 235/U and /sup 239/Pu isotopes in waste samples. Passive coincidence counting, including neutron multiplicity measurement and determination of the overall passive neutron flux additionally enables the separate quantitative evaluation of spontaneous fission isotopes such as /sup 240/Pu, /sup 244/Cm and /sup 252/Cf, and the spontaneous alpha particle emitter /sup 241/Am. These seven isotopes are the most important constituents of wastes from nuclear power reactors and once the mass of each isotope present is determined by the apparatus and method of the instant invention, the overall alpha particle activity can be determined to better than 1 nCi/g from known radioactivity data. Therefore, in addition to the quantitative analysis of the waste sample useful for later reclamation purposes, the alpha particle activity can be determined to decide whether permanent low-level burial is appropriate for the waste sample.

Caldwell, J.T.; Kunz, W.E.; Atencio, J.D.

1982-03-31T23:59:59.000Z

284

Genomic imprinting of two antagonistic loci  

Science Journals Connector (OSTI)

...and with increases in the product- ion of Igf 2r/CI-MPR. The assumption that @C/@Y4 0 remains reasonable under this rede nition, even when changes in Yare due to changes in binding a nity rather than changes in expression level because endocytosis...

2001-01-01T23:59:59.000Z

285

Hypervariable loci in the human gut virome  

Science Journals Connector (OSTI)

...similarity were typically short patches (median alignment length 202 bp...homology-based structural prediction pipeline Phyre2 to analyze each ORF (Table S1...with shotgun reads to manually repair contigs, closing gaps with...then put through the analysis pipeline above, including read mapping...

Samuel Minot; Stephanie Grunberg; Gary D. Wu; James D. Lewis; Frederic D. Bushman

2012-01-01T23:59:59.000Z

286

Prediction of Prostate-Specific Antigen Recurrence in Men with Long-term Follow-up Postprostatectomy Using Quantitative Nuclear Morphometry  

Science Journals Connector (OSTI)

...Using Quantitative Nuclear Morphometry Robert...Patana Fund. The costs of publication of...fact. Background: Nuclear morphometric signatures...predictive probability graphs were generated...patient-specific quantitative nuclear grade (QNG) alone...predictive probability graphs were generated...

Robert W. Veltri; M. Craig Miller; Sumit Isharwal; Cameron Marlow; Danil V. Makarov; and Alan W. Partin

2008-01-01T23:59:59.000Z

287

A quantitative proteomics study of the additive effect of inflammatory cytokines and injurious compression on cartilage damage  

E-Print Network [OSTI]

Objectives: 1) To perform a quantitative comparison of proteins released to media on combination with cytokine (IL-1[beta[ or TNF-[alpha]) and Injury as compared to either treatment alone, and to thus identify proteins ...

Swaminathan, Krishnakumar

2011-01-01T23:59:59.000Z

288

A new profile control design based on quantitative identification of steam breakthrough channel in heavy oil reservoirs  

Science Journals Connector (OSTI)

Steam breakthrough has a great negative influence on the development of steam flooding in heavy oil reservoirs. In this article, a new profile control design based on quantitative identification of steam break...

Chuan Lu; Huiqing Liu; Zhanxi Pang…

2014-03-01T23:59:59.000Z

289

QUANTITATIVE HEALTH RISK ASSESSMENT RESULTING FROM GROUNDWATER CONTAMINATION OF AN ABANDONED OPEN FIELD CHEMICAL WASTE BURNING SITE  

Science Journals Connector (OSTI)

Quantitative human health risk assessment was performed for the evaluation of health threat resulting from the chemical contamination of the soil and groundwater in the area of the former open field pharmaceutica...

GYULA DURA; SANDOR SZOBOSZLAI; BALAZS KRISZT…

2006-01-01T23:59:59.000Z

290

A Quantitative Comparison of Parallel Computation Models Ben H,H. Juurlink Harry A.G. Wijshoff  

E-Print Network [OSTI]

A Quantitative Comparison of Parallel Computation Models Ben H,H. Juurlink Harry A.G. Wijshoff High, requires specific permission sad/or fee. SPM96, Padua, Italy Q 199(j ACM ().89791+@-&96j~ ..$3

Moreno Maza, Marc

291

Generating and Calibrating Probabilistic Quantitative Precipitation Forecasts from the High-Resolution NWP Model COSMO-DE  

Science Journals Connector (OSTI)

Statistical postprocessing is an integral part of an ensemble prediction system. This study compares methods used to derive probabilistic quantitative precipitation forecasts based on the high-resolution version of the German-focused Consortium ...

Sabrina Bentzien; Petra Friederichs

2012-08-01T23:59:59.000Z

292

High Resolution Quantitative Auto-Radiography to determine microscopic distributions of B-10 in neutron capture therapy  

E-Print Network [OSTI]

The success of Boron Neutron Capture Therapy (BNCT) is heavily dependent on the microscopic distribution of B-10 in tissue. High Resolution Quantitative Auto-Radiography (HRQAR) is a potentially valuable analytical tool ...

Harris, Thomas C. (Thomas Cameron)

2006-01-01T23:59:59.000Z

293

Reliable Gene Expression Analysis by Reverse Transcription-Quantitative PCR: Reporting and Minimizing the Uncertainty in Data Accuracy  

Science Journals Connector (OSTI)

...Hasselt University, 3590 Diepenbeek, Belgium b Hasselt University, 3590 Diepenbeek, Belgium [W] Online version contains Web-only data. [OPEN] Articles can be viewed online without a subscription. Reverse transcription-quantitative PCR (RT-qPCR...

Tony Remans; Els Keunen; Geert Jan Bex; Karen Smeets; Jaco Vangronsveld; Ann Cuypers

2014-10-31T23:59:59.000Z

294

Component tissues of different morphological types of tomato fruit and their qualitative and quantitative effects on quality of processed product  

E-Print Network [OSTI]

COMPONENT TISSUES OF DIFFERENT MORPHOLOGICAL TYPES OF TOMATO FRUIT AND THEIR QUALITATIVE AND QUANTITATIVE EFFECTS ON QUALITY OF PROCESSED PRODUCT A Thesis by Alfred Bernhart Wagner, Jr. Submitted to the Graduate College of Texas A... of Tomato Fruit and Their Qualitative and Quantitative Effects on Quality of Processed Product (December 1972) Alfred Bernhart Wagner, Jr. , B. S. , Texas A&M University Directed by: Dr. E. E. Burns Tissue regions of five morphological types of tomato...

Wagner, Alfred Bernhart

1972-01-01T23:59:59.000Z

295

A quantitative study of fish populations associated with a platform within Buccaneer Oil Field, northwestern Gulf of Mexico  

E-Print Network [OSTI]

A QUANTITATIVE STUDY OF FISH POPULATIONS ASSOCIATED WITH A PLATFORM WITHIN BUCCANEER OIL FIELD, NORTHWESTERN GULF OF MEXICO A Thesis by RUSSELL EUGENE PUTT, JR. Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE August 1982 Major Subject: Oceanography A QUANTITATIVE STUDY OF FISH POPULATIONS ASSOCIATED WITH A PLATFORM WITHIN BUCCANEER OIL FIELD, NORTHWESTERN GULF OF MEXICO A Thesis by RUSSELL EUGENE PUTT, JR...

Putt, Russell Eugene

2012-06-07T23:59:59.000Z

296

A quantitative evaluation of effective shale content and its influence on electrical resistivity and permeability of reservoir rocks  

E-Print Network [OSTI]

A QUANTITATIVE EVALUATION OF EFFECTIVE SHALE CONTENT AND ITS INFLUENCE ON ELECTRICAL RESISTIVITY AND PERMEABILITY OF RESERVOIR ROCKS A Thesis By PARAYATH E. B. MENON Submitted to the Graduate College of Texas ASM University in Partial... fulfillment of the Requirements for the Degree of MASTER OF SCIENCE January, f965 Major Subject: Petroleum Engineering A QUANTITATIVE EVALUATION OF EFFECTIVE SHALE CONTENT AND ITS INFLUENCE ON ELECTRICAL RESISTIVITY AND PERMEABILITY OF RESERVOIR ROCKS...

Menon, Parayath Eravi Bhaskara

2012-06-07T23:59:59.000Z

297

Quantitative Study Of Guide Field Effects on Hall Reconnection In A Laboratory Plasma  

SciTech Connect (OSTI)

The effect of guide field on magnetic reconnection is quantitatively studied by systematically varying an applied guide field in the Magnetic Reconnection Experiment (MRX). The quadrupole field, a signature of two-fluid reconnection at zero guide field, is significantly altered by a finite guide field. It is shown that the reconnection rate is significantly reduced with increasing guide field, and this dependence is explained by a combination of local and global physics: locally, the in-plane Hall currents are reduced, while globally guide field compression produces an increased pressure both within and downstream of the reconnection region. __________________________________________________

T. D. Tharp, M. Yamada, H. Ji, E. Lawrence, S. Dorfman, C. Myers, and J. Yoo

2012-04-17T23:59:59.000Z

298

Quantitative analysis of tin alloy combined with artificial neural network prediction  

SciTech Connect (OSTI)

Laser-induced breakdown spectroscopy was applied to quantitative analysis of three impurities in Sn alloy. The impurities analysis was based on the internal standard method using the Sn I 333.062-nm line as the reference line to achieve the best reproducible results. Minor-element concentrations (Ag, Cu, Pb) in the alloy were comparatively evaluated by artificial neural networks (ANNs) and calibration curves. ANN was found to effectively predict elemental concentrations with a trend of nonlinear growth due to self-absorption. The limits of detection for Ag, Cu, and Pb in Sn alloy were determined to be 29, 197, and 213 ppm, respectively.

Oh, Seong Y.; Yueh, Fang-Yu; Singh, Jagdish P.

2010-05-01T23:59:59.000Z

299

Comprehensive, Quantitative Risk Assessment of CO{sub 2} Geologic Sequestration  

SciTech Connect (OSTI)

A Quantitative Failure Modes and Effects Analysis (QFMEA) was developed to conduct comprehensive, quantitative risk assessments on CO{sub 2} capture, transportation, and sequestration or use in deep saline aquifers, enhanced oil recovery operations, or enhanced coal bed methane operations. The model identifies and characterizes potential risks; identifies the likely failure modes, causes, effects and methods of detection; lists possible risk prevention and risk mitigation steps; estimates potential damage recovery costs, mitigation costs and costs savings resulting from mitigation; and ranks (prioritizes) risks according to the probability of failure, the severity of failure, the difficulty of early failure detection and the potential for fatalities. The QFMEA model generates the necessary information needed for effective project risk management. Diverse project information can be integrated into a concise, common format that allows comprehensive, quantitative analysis, by a cross-functional team of experts, to determine: What can possibly go wrong? How much will damage recovery cost? How can it be prevented or mitigated? What is the cost savings or benefit of prevention or mitigation? Which risks should be given highest priority for resolution? The QFMEA model can be tailored to specific projects and is applicable to new projects as well as mature projects. The model can be revised and updated as new information comes available. It accepts input from multiple sources, such as literature searches, site characterization, field data, computer simulations, analogues, process influence diagrams, probability density functions, financial analysis models, cost factors, and heuristic best practices manuals, and converts the information into a standardized format in an Excel spreadsheet. Process influence diagrams, geologic models, financial models, cost factors and an insurance schedule were developed to support the QFMEA model. Comprehensive, quantitative risk assessments were conducted on three (3) sites using the QFMEA model: (1) SACROC Northern Platform CO{sub 2}-EOR Site in the Permian Basin, Scurry County, TX, (2) Pump Canyon CO{sub 2}-ECBM Site in the San Juan Basin, San Juan County, NM, and (3) Farnsworth Unit CO{sub 2}-EOR Site in the Anadarko Basin, Ochiltree County, TX. The sites were sufficiently different from each other to test the robustness of the QFMEA model.

Lepinski, James

2013-09-30T23:59:59.000Z

300

Tissue microstructural changes in dementia with Lewy bodies revealed by quantitative MRI  

E-Print Network [OSTI]

-linearly normalized to standard MNI space (www.mni.mcgill.ca) using the diffeomorphic registration algorithm (DARTEL) [24] in SPM. Raw qT1 and qT2 imaging datasets were corrected for field inhomogeneities using B0 maps and the PRELUDE/FUGUE algorithm in FSL [25... evident atrophy is clinically promising. Compared to nuclear imaging and structural MRI, quantitative MRI is a new and versatile diagnostic tool in investigating neurobiological changes in DLB, with potential for the early detection of DLB since...

Su, Li; Blamire, Andrew M.; Watson, Rosie; He, Jiabao; Aribisala, Benjamin; O’Brien, John T.

2014-01-01T23:59:59.000Z

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


301

Spatially resolved quantitative mapping of thermomechanical properties and phase transition temperatures using scanning probe microscopy  

DOE Patents [OSTI]

An approach for the thermomechanical characterization of phase transitions in polymeric materials (polyethyleneterephthalate) by band excitation acoustic force microscopy is developed. This methodology allows the independent measurement of resonance frequency, Q factor, and oscillation amplitude of a tip-surface contact area as a function of tip temperature, from which the thermal evolution of tip-surface spring constant and mechanical dissipation can be extracted. A heating protocol maintained a constant tip-surface contact area and constant contact force, thereby allowing for reproducible measurements and quantitative extraction of material properties including temperature dependence of indentation-based elastic and loss moduli.

Jesse, Stephen; Kalinin, Sergei V; Nikiforov, Maxim P

2013-07-09T23:59:59.000Z

302

High-yielding traits of heavy panicle varieties under triangle planting geometry: A new plant spatial configuration for hybrid rice in China  

Science Journals Connector (OSTI)

Abstract Triangle planting geometry (TPG) is a new rice arrangement mode, whereby plants form a “dense intra-hill, sparse inter-hill” group structure. This allows them to have more spatial options, thus avoiding excessive infra-hill competition when compared to conventional row configurations. However, there is limited information on how TPG might affect rice production, especially for newly-bred varieties featuring a heavy panicle size (5 g panicle?1). This study was conducted to evaluate grain yield performance and yield component changes of heavy panicle varieties under TPG. Moreover, to identify any promising agronomy traits and population structural features that might explain the difference in yield performance as well as to probe whether the high-yielding performance of TPG is reproducible in other circumstances. In 2012, Eryou498 (a heavy panicle variety) was grown under four planting geometries (PGs) in two fields that had similar soil fertility, but that were conducted with either conventional tillage or zero-tillage systems. In 2013, two heavy panicle varieties and two medium panicle varieties (2–5 g panicle?1) were grown under three \\{PGs\\} in two ecological regions. Grain yield and effective panicles were significantly affected by both variety and PG. A significant interaction of PG and variety was seen on grain yield, but the high-yielding performance of TPG was consistent with all varieties. Sufficient total spikelets were the basis of achieving a high grain yield. Effective panicles predominantly attributed to total spikelets across all four experiments. Robust spikelets were crucial when grain yield was at a high level. Heavy panicle varieties and TPG showed some similar high-yielding traits. These included rapid crop growth rate (CGR) during the two weeks before full heading, plenty non-structural carbohydrate (NSC) accumulated at full heading, mass NSC output in two weeks after full heading, and high radiation use efficiency (RUE). Rice under TPG presented a more compact top three leaves as well as more stretched lower leaves when compared to other PGs. Overall, all leaves of heavy panicle varieties were more stretched than those found in medium ones. Heavy panicle varieties accumulated more nitrogen (N) in leaves from elongation to 30 days after full heading while PG showed no significant effect on leaf N concentration during the late grain-filling period. These results suggest that the high-yielding performance of TPG is reproducible in other circumstances. The combination of TPG and heavy panicle varieties is advantageous, allowing for a more efficient canopy structure for heavy panicle varieties and a more robust photosynthetic ability at late grain-filling period under TPG.

Zhiyuan Yang; Na Li; Jun Ma; Yongjian Sun; Hui Xu

2014-01-01T23:59:59.000Z

303

An Improved Canine Genome and a Comprehensive Catalogue of Coding Genes and Non-Coding Transcripts  

E-Print Network [OSTI]

The domestic dog, Canis familiaris, is a well-established model system for mapping trait and disease loci. While the original draft sequence was of good quality, gaps were abundant particularly in promoter regions of the ...

Hoeppner, Marc P.

304

Model for quantitative risk assessment on naturally ventilated metering-regulation stations for natural gas  

Science Journals Connector (OSTI)

Abstract The paper presents a model for quantitative risk assessment on metering stations and metering-regulation stations for natural gas with natural ventilation. The model enables the assessment of risk for people who live in the vicinity of these stations and complements the existing models for risk assessment on natural gas pipelines. It is based on risk assessment methods suggested in relevant guides, recommendations and standards. Explosion and jet fire are considered as major hazardous events and are modelled according to analytical models and empirical data. Local or other accessible databases are used for modelling of event frequencies and ignition probabilities. A case study on a sample station is carried out. For each hazardous event, fault tree and event tree analysis is performed. Results show influence of each hazardous event on the whole risk relative to the distance from the hazardous source. Ventilation is found to be a significant factor in determination of risk magnitude; its influence on individual risk is presented in a quantitative way. The model should be of use for pipeline operators as well as for environmental- and urban planners.

Tom Bajcar; Franc Cimerman; Brane Širok

2014-01-01T23:59:59.000Z

305

The Food Crises: A quantitative model of food prices including speculators and ethanol conversion  

E-Print Network [OSTI]

Recent increases in basic food prices are severely impacting vulnerable populations worldwide. Proposed causes such as shortages of grain due to adverse weather, increasing meat consumption in China and India, conversion of corn to ethanol in the US, and investor speculation on commodity markets lead to widely differing implications for policy. A lack of clarity about which factors are responsible reinforces policy inaction. Here, for the first time, we construct a dynamic model that quantitatively agrees with food prices. The results show that the dominant causes of price increases are investor speculation and ethanol conversion. Models that just treat supply and demand are not consistent with the actual price dynamics. The two sharp peaks in 2007/2008 and 2010/2011 are specifically due to investor speculation, while an underlying upward trend is due to increasing demand from ethanol conversion. The model includes investor trend following as well as shifting between commodities, equities and bonds to take ad...

Lagi, Marco; Bertrand, Karla Z; Bar-Yam, Yaneer

2011-01-01T23:59:59.000Z

306

ANSI/ASHRAE/IES Standard 90.1-2013 Determination of Energy Savings: Quantitative Analysis  

SciTech Connect (OSTI)

This report provides a final quantitative analysis to assess whether buildings constructed according to the requirements of ANSI/ASHRAE/IES Standard 90.1-2013 would result in improved energy efficiency in commercial buildings. The final analysis considered each of the 110 addenda to Standard 90.1-2010 that were included in Standard 90.1-2013. PNNL reviewed all addenda included by ASHRAE in creating Standard 90.1-2013 from Standard 90.1-2010, and considered their combined impact on a suite of prototype building models across all U.S. climate zones. Most addenda were deemed to have little quantifiable impact on building efficiency for the purpose of DOE’s final determination. However, out of the 110 total addenda, 30 were identified as having a measureable and quantifiable impact.

Halverson, Mark A.; Athalye, Rahul A.; Rosenberg, Michael I.; Xie, YuLong; Wang, Weimin; Hart, Philip R.; Zhang, Jian; Goel, Supriya; Mendon, Vrushali V.

2014-09-04T23:59:59.000Z

307

Quantitative Cyber Risk Reduction Estimation Methodology for a Small Scada Control System  

SciTech Connect (OSTI)

We propose a new methodology for obtaining a quick quantitative measurement of the risk reduction achieved when a control system is modified with the intent to improve cyber security defense against external attackers. The proposed methodology employs a directed graph called a compromise graph, where the nodes represent stages of a potential attack and the edges represent the expected time-to-compromise for differing attacker skill levels. Time-to-compromise is modeled as a function of known vulnerabilities and attacker skill level. The methodology was used to calculate risk reduction estimates for a specific SCADA system and for a specific set of control system security remedial actions. Despite an 86% reduction in the total number of vulnerabilities, the estimated time-to-compromise was increased only by about 3 to 30% depending on target and attacker skill level.

Miles A. McQueen; Wayne F. Boyer; Mark A. Flynn; George A. Beitel

2006-01-01T23:59:59.000Z

308

Detection and quantitative analysis of ferrocyanide and ferricyanide: FY 93 Florida State University Raman spectroscopy report  

SciTech Connect (OSTI)

This report provides a summary of work to develop and investigate the feasibility of using Raman spectroscopy with tank waste materials. It contains Raman spectra from organics, such as ethylenediaminetetraacetic acid (EDTA), hydroxyethylenediaminetetraacteic acid (HEDTA), imino diacetic acid (IDA), kerosene, tributyl phosphate (TBP), acetone and butanol, anticipated to be present in tank wastes and spectra from T-107 real and BY-104 simulant materials. The results of investigating Raman for determining moisture content in tank materials are also presented. A description of software algorithms developed to process Raman spectra from a dispersive grating spectrometer system and an in initial design for a data base to support qualitative and quantitative application of remote Raman sensing with tank wastes.

Mann, C.K.; Vickers, T.J. [Florida State Univ., Tallahassee, FL (United States). Dept. of Chemistry

1994-10-11T23:59:59.000Z

309

Shotgun Approach for Quantitative Imaging of Phospholipids Using Nanospray Desorption Electrospray Ionization Mass Spectrometry  

SciTech Connect (OSTI)

Mass spectrometry imaging (MSI) has been extensively used for determining spatial distributions of molecules in biological samples, and there is increasing interest in using MSI for quantification. Nanospray desorption electrospray ionization, or nano-DESI, is an ambient MSI technique where a solvent is used for localized extraction of molecules followed by nanoelectrospray ionization. Doping the nano-DESI solvent with carefully selected standards enables online quantification during MSI experiments. In this proof-of-principle study, we demonstrate this quantification approach can be extended to provide shotgun-like quantification of phospholipids in thin brain tissue sections. Specifically, two phosphatidylcholine (PC) standards were added to the nano-DESI solvent for simultaneous imaging and quantification of 22 PC species observed in nano-DESI MSI. Furthermore, by combining the quantitative data obtained in the individual pixels, we demonstrate quantification of these PC species in seven different regions of a rat brain tissue section.

Lanekoff, Ingela T.; Thomas, Mathew; Laskin, Julia

2014-02-04T23:59:59.000Z

310

Quantitative study of spin noise spectroscopy in a classical gas of {sup 41}K atoms  

SciTech Connect (OSTI)

We present a general derivation of the electron spin noise power spectrum in alkali gases as measured by optical Faraday rotation, which applies to both classical gases at high temperatures as well as ultracold quantum gases. We show that the spin-noise power spectrum is determined by an electron spin-spin correlation function, and we find that measurements of the spin-noise power spectra for a classical gas of {sup 41}K atoms are in good agreement with the predicted values. Experimental and theoretical spin noise spectra are directly and quantitatively compared in both longitudinal and transverse magnetic fields up to the high magnetic-field regime (where Zeeman energies exceed the intrinsic hyperfine energy splitting of the {sup 41}K ground state)

Mihaila, Bogdan [Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Crooker, Scott A.; Rickel, Dwight G. [National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Blagoev, Krastan B.; Smith, Darryl L. [Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Littlewood, Peter B. [Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE (United Kingdom)

2006-10-15T23:59:59.000Z

311

Quantitative degenerate four-wave mixing spectroscopy: Probes for molecular species  

SciTech Connect (OSTI)

Resonant degenerate four-wave mixing (DFWM) is currently the subject of intensive investigation as a sensitive diagnostic tool for molecular species. DFWM has the advantage of generating a coherent (beam-like) signal which results in null-background detection and provides excellent immunity to background-light interference. Since multiple one-photon resonances are involved in the signal generation process, the DFWM technique can allow sensitive detection of molecules via electronic, vibrational or rotational transitions. These properties combine to make DFWM a widely applicable diagnostic technique for the probing of molecular species. The authors are conducting fundamental and applied investigations of DFWM for quantitative measurements of trace species in reacting gases. During the past year, efforts have been focussed in two areas: (1) understanding the effects of collisional processes on the DFWM signal generation process, and (2) exploring the applicability of infrared DFWM to detect polyatomic molecules via rovibrational transitions.

Farrow, R.; Rakestraw, D.; Paul, P.; Lucht, R.; Danehy, P.; Friedman-Hill, E.; Germann, G. [Sandia National Laboratories, Livermore, CA (United States)

1993-12-01T23:59:59.000Z

312

Quantitative description of ion transport via plasma membrane of yeast and small cells  

E-Print Network [OSTI]

Modelling of ion transport via plasma membrane needs identification and quantitative understanding of the involved processes. Brief characterisation of ion transport systems of a yeast cell (Pma1, Ena1, TOK1, Nha1, Trk1, Trk2, non-selective cation conductance) and estimates concerning the number of molecules of each transporter per a cell allow predicting the corresponding ion flows. Comparison of ion transport in small yeast cell and several animal cell types is provided and importance of cell volume to surface ratio is stressed. Role of cell wall and lipid rafts is discussed in aspect of required increase in spatial and temporary resolution of measurements. Conclusions are formulated to describe specific features of ion transport in a yeast cell. Potential directions of future research are outlined based on the assumptions.

Volkov, Vadim

2012-01-01T23:59:59.000Z

313

Quantitative description of ion transport via plasma membrane of yeast and small cells  

E-Print Network [OSTI]

Modelling of ion transport via plasma membrane needs identification and quantitative understanding of the involved processes. Brief characterisation of ion transport systems of a yeast cell (Pma1, Ena1, TOK1, Nha1, Trk1, Trk2, non-selective cation conductance) and estimates concerning the number of molecules of each transporter per a cell allow predicting the corresponding ion flows. Comparison of ion transport in small yeast cell and several animal cell types is provided and importance of cell volume to surface ratio is stressed. Role of cell wall and lipid rafts is discussed in aspect of required increase in spatial and temporary resolution of measurements. Conclusions are formulated to describe specific features of ion transport in a yeast cell. Potential directions of future research are outlined based on the assumptions.

Vadim Volkov

2012-12-18T23:59:59.000Z

314

QUANTITATIVE NON-DESTRUCTIVE EVALUATION (QNDE) OF THE ELASTIC MODULI OF POROUS TIAL ALLOYS  

SciTech Connect (OSTI)

The elastic moduli of {gamma}-TiA1 were studied in porous samples consolidated by various techniques e.g. cold isostatic pressing (CIP), pressure-less sintering, or hot isostatic pressing (HIP). Porosity linearly affects the dynamic elastic moduli of samples. The results indicate that the sound wave velocities and the elastic moduli affected by the processing route and depend not only on the attained density but also on the consolidation temperature. In this paper we show that there is linear correlation between the shear and the longitudinal sound velocities in porous TiA1. This opens the way to use a single sound velocity as a tool for quantitative non-destructive evaluation (QNDE) of porous TiA1 alloys. Here we demonstrate the applicability of an equation derived from the elastic theory and used previously for porous cubic metals.

Yeheskel, O. [NRCN, PO Box 9001, Beer Sheva, 84190 (Israel)

2008-02-28T23:59:59.000Z

315

Quantitative feedback design of air and boost pressure control system for turbocharged diesel engines  

Science Journals Connector (OSTI)

For modern diesel engines, variable geometry turbocharger (VGT) is used to boost engine power output. In addition, exhaust gas recirculation (EGR) is utilized to reduce engine out \\{NOx\\} emission. To realize these functions, a multivariable control system needs to control both VGT and EGR valve to deliver desired intake manifold (or boost) pressure, and desired EGR flow rate. This two-input and two-output system is nonlinear with cross-couplings between the boost and EGR responses to the input actuators, the system parameters are varying with different engine operating conditions. This paper proposes a closed loop design of a multivariable VGT/EGR control system for a turbocharged diesel engine. The control system is synthesized based on quantitative feedback theory to maintain robust stability and performance via sequential MIMO loop shaping in the frequency domain. Experiment results are included from a turbocharged diesel engine to show the effectiveness of the proposed control design.

Yue-Yun Wang; Ibrahim Haskara; Oded Yaniv

2011-01-01T23:59:59.000Z

316

Strigolactone-Regulated Proteins Revealed by iTRAQ-Based Quantitative Proteomics in Arabidopsis  

SciTech Connect (OSTI)

Strigolactones (SLs) are a new class of plant hormones. In addition to acting as a key inhibitor of shoot branching, SLs stimulate seed germination of root parasitic plants and promote hyphal branching and root colonization of symbiotic arbuscular mycorrhizal fungi. They also regulate many other aspects of plant growth and development. At the transcription level, SL-regulated genes have been reported. However, nothing is known about the proteome regulated by this new class of plant hormones. Here, a quantitative proteomics approach using an isobaric chemical labeling reagent, iTRAQ, to identify the proteome regulated by SLs in Arabidopsis seedlings is presented. It was found SLs regulate the expression of about three dozens of proteins that have not been previously assigned to SL pathways. These findings provide a new tool to investigate the molecular mechanism of action of SLs.

Li, Zhou [ORNL] [ORNL; Czarnecki, Olaf [ORNL] [ORNL; Chourey, Karuna [ORNL] [ORNL; Yang, Jun [ORNL] [ORNL; Tuskan, Gerald A [ORNL] [ORNL; Hurst, Gregory {Greg} B [ORNL; Pan, Chongle [ORNL] [ORNL; Chen, Jay [ORNL] [ORNL

2014-01-01T23:59:59.000Z

317

Standard test method for quantitative determination of americium 241 in plutonium by Gamma-Ray spectrometry  

E-Print Network [OSTI]

1.1 This test method covers the quantitative determination of americium 241 by gamma-ray spectrometry in plutonium nitrate solution samples that do not contain significant amounts of radioactive fission products or other high specific activity gamma-ray emitters. 1.2 This test method can be used to determine the americium 241 in samples of plutonium metal, oxide and other solid forms, when the solid is appropriately sampled and dissolved. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

American Society for Testing and Materials. Philadelphia

1994-01-01T23:59:59.000Z

318

Quantitative study of spin noise spectroscopy in a classical gas of K41 atoms  

Science Journals Connector (OSTI)

We present a general derivation of the electron spin noise power spectrum in alkali gases as measured by optical Faraday rotation, which applies to both classical gases at high temperatures as well as ultracold quantum gases. We show that the spin-noise power spectrum is determined by an electron spin-spin correlation function, and we find that measurements of the spin-noise power spectra for a classical gas of K41 atoms are in good agreement with the predicted values. Experimental and theoretical spin noise spectra are directly and quantitatively compared in both longitudinal and transverse magnetic fields up to the high magnetic-field regime (where Zeeman energies exceed the intrinsic hyperfine energy splitting of the K41 ground state).

Bogdan Mihaila; Scott A. Crooker; Dwight G. Rickel; Krastan B. Blagoev; Peter B. Littlewood; Darryl L. Smith

2006-10-30T23:59:59.000Z

319

Use of Quantitative Uncertainty Analysis to Support M&VDecisions in ESPCs  

SciTech Connect (OSTI)

Measurement and Verification (M&V) is a critical elementof an Energy Savings Performance Contract (ESPC) - without M&V, thereisno way to confirm that the projected savings in an ESPC are in factbeing realized. For any given energy conservation measure in an ESPC,there are usually several M&V choices, which will vary in terms ofmeasurement uncertainty, cost, and technical feasibility. Typically,M&V decisions are made almost solely based on engineering judgmentand experience, with little, if any, quantitative uncertainty analysis(QUA). This paper describes the results of a pilot project initiated bythe Department of Energy s Federal Energy Management Program to explorethe use of Monte-Carlo simulation to assess savings uncertainty andthereby augment the M&V decision-making process in ESPCs. The intentwas to use QUA selectively in combination with heuristic knowledge, inorder to obtain quantitative estimates of the savings uncertainty withoutthe burden of a comprehensive "bottoms-up" QUA. This approach was used toanalyze the savings uncertainty in an ESPC for a large federal agency.The QUA was seamlessly integrated into the ESPC development process andthe incremental effort was relatively small with user-friendly tools thatare commercially available. As the case study illustrates, in some casesthe QUA simply confirms intuitive or qualitative information, while inother cases, it provides insight that suggests revisiting the M&Vplan. The case study also showed that M&V decisions should beinformed by the portfolio risk diversification. By providing quantitativeuncertainty information, QUA can effectively augment the M&Vdecision-making process as well as the overall ESPC financialanalysis.

Mathew, Paul A.; Koehling, Erick; Kumar, Satish

2005-05-11T23:59:59.000Z

320

QUANTITATIVE TESTS OF ELMS AS INTERMEDIATE N PEELING-BALLOONING MODES  

SciTech Connect (OSTI)

OAK A271 QUANTITATIVE TESTS OF ELMS AS INTERMEDIATE N PEELING-BALLOONING MODES. Two of the major issues crucial for the design of the next generation tokamak burning plasma devices are the predictability of the edge pedestal height and control of the divertor heat load in H-mode configurations. Both of these are strongly impacted by edge localized modes (ELMs) and their size. A working model for ELMs is that they are intermediate toroidal mode number, n {approx} 5-30, peeling-ballooning modes driven by the large edge pedestal pressure gradient P{prime} and the associated large edge bootstrap current density J{sub BS}. the interplay between P{prime} and J{sub BS} as a discharge evolves can excite peeling-ballooning modes over a wide spectrum of n. The pedestal current density plays a dual role by stabilizing the high n ballooning modes via opening access to second stability but providing free energy to drive the intermediate n peeling modes. This makes a systematic evaluation of this model particularly challenging. This paper describes recent quantitative tests of this model using experimental data from the DIII-D and the JT-60U tokamaks. These tests are made possible by recent improvements to the ELITE MHD stability code, which allow an efficient evaluation of the unstable peeling-ballooning modes, as well as by improvements to other diagnostic and analysis techniques. Some of the key testable features of this model are: (1) ELMs are triggered when the growth rates of intermediate n MHD modes become significantly large; (2) ELM sizes are related to the radial widths of the unstable modes; (3) the unstable modes have a strong ballooning character localized in the outboard bad curvature region; (4) at high collisionality, ELM size generally becomes smaller because J{sub BS} is reduced.

LAO, LL; SNYDER, PB; LEONARD, AW; OSBORNE, TH; PETRIE, TW; FERRON, JR; GROEBNER, RJ; HORTON, LD; KAMADA, Y; MURAKAMI, M; OIKAWA, T; PEARLSTEIN, LD; SAARELMA, S; STJOHN, HE; THOMAS, DM; TURNBULL, AD; WILSON, HR

2002-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "quantitative trait loci" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
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321

Formation resistivity measurements from within a cased well used to quantitatively determine the amount of oil and gas present  

DOE Patents [OSTI]

Methods to quantitatively determine the separate amounts of oil and gas in a geological formation adjacent to a cased well using measurements of formation resistivity are disclosed. The steps include obtaining resistivity measurements from within a cased well of a given formation, obtaining the porosity, obtaining the resistivity of formation water present, computing the combined amounts of oil and gas present using Archie`s Equations, determining the relative amounts of oil and gas present from measurements within a cased well, and then quantitatively determining the separate amounts of oil and gas present in the formation. 7 figs.

Vail, W.B. III

1997-05-27T23:59:59.000Z

322

Quantitative evaluation of hydrogen sulfide at 0.3 M and 1.0 M-hydrogen-ion concentration  

E-Print Network [OSTI]

. In the present study, cobalt sulfide was quantitatively re? covered from a solution whose hydrogen-ion concentration -12was calculated to be 6.95 x 10 M. As in the case of zinc sulfide, this was to be expected, since a decreased hydrogen-ion concentration... quantitatively to an electrolysis beaker with distilled water. The copper 28 was deposited on a platinum gauze cathode in 9 hours from a solution containing a 5 ml. excess of 18 M sulfuric acid in 125 ml., and a current of 0.5 ampere. 12. Copper (II) - Zinc...

Machel, Albert R.

1958-01-01T23:59:59.000Z

323

Formation resistivity measurements from within a cased well used to quantitatively determine the amount of oil and gas present  

DOE Patents [OSTI]

Methods to quantitatively determine the separate amounts of oil and gas in a geological formation adjacent to a cased well using measurements of formation resistivity are disclosed. The steps include obtaining resistivity measurements from within a cased well of a given formation, obtaining the porosity, obtaining the resistivity of formation water present, computing the combined amounts of oil and gas present using Archie's Equations, determining the relative amounts of oil and gas present from measurements within a cased well, and then quantitatively determining the separate amounts of oil and gas present in the formation.

Vail, III, William B. (Bothell, WA)

1997-01-01T23:59:59.000Z

324

A Low-Cost Quantitative Absorption Spectrophotometer Daniel R. Albert, Michael A. Todt, and H. Floyd Davis*  

E-Print Network [OSTI]

A Low-Cost Quantitative Absorption Spectrophotometer Daniel R. Albert, Michael A. Todt, and H with spectrophotometry. Additionally, more than 75% of the high school teachers polled stated that the high cost of modern spectrophotometers was prohibitive for regular classroom use. The lowest-cost modern

Davis, H. Floyd

325

Quantitative Evaluation of Radiation Damage to Polyethylene Terephthalate by Soft X-rays and High-energy Electrons  

E-Print Network [OSTI]

Quantitative Evaluation of Radiation Damage to Polyethylene Terephthalate by Soft X-rays and High to polyethylene terephthalate (PET) caused by soft X-rays and energetic electrons have been measured using to polyethylene terephalate (PET) by TEM-EELS versus nonspatially resolved NEXAFS.5 That study also reported

Hitchcock, Adam P.

326

A New Method for Quantitative Marking of Deposited Lithium via Chemical Treatment on Graphite Anodes in Lithium-Ion Cells  

E-Print Network [OSTI]

A New Method for Quantitative Marking of Deposited Lithium via Chemical Treatment on Graphite Anodes in Lithium-Ion Cells Yvonne Krämer*[a] , Claudia Birkenmaier[b] , Julian Feinauer[a,c] , Andreas*[e] and Thomas Schleid[f] Abstract: A novel approach for the marking of deposited lithium on graphite anodes from

Schmidt, Volker

327

Quantitative characterization of the water trimer torsional manifold by terahertz laser spectroscopy and theoretical analysis. II. ,,H2O...3  

E-Print Network [OSTI]

Quantitative characterization of the water trimer torsional manifold by terahertz laserLaughlin,c) Christy J. Keoshian, Ernest Michael, Jeff D. Cruzan,d) and Richard J. Saykallye) Department of Chemistry, University of California, Berkeley, California 94720 Ad van der Avoirdf) Institute of Theoretical Chemistry

Cohen, Ronald C.

328

The timing of the rise of the Isthmus of Panama: Inferences from qualitative and quantitative Sreepat Jain  

E-Print Network [OSTI]

The timing of the rise of the Isthmus of Panama: Inferences from qualitative and quantitative data Miocene to the early Pliocene, the Panama seaway was an interoceanic exchange route. For the middle straits were closed. Thus, the closure of the Panama Seaway severed the exchange between the Equatorial

Sukop, Mike

329

Evaluation of mares as a source of Rhodococcus equi for their foals using quantitative culture and a colony immunoblot assay  

E-Print Network [OSTI]

Fecal specimens from 130 different mares were collected from an endemic farm for 2 consecutive years at 4 different times pre- and post-foaling (41 mares contributed data in both years). A modified NANAT agar medium was used to quantitatively...

Grimm, Michael Bradley

2009-06-02T23:59:59.000Z

330

Region-based quantitative and hierarchical attribute reduction in the two-category decision theoretic rough set model  

Science Journals Connector (OSTI)

Abstract Quantitative attribute reduction exhibits applicability but complexity when compared to qualitative reduction. According to the two-category decision theoretic rough set model, this paper mainly investigates quantitative reducts and their hierarchies (with qualitative reducts) from a regional perspective. (1) An improved type of classification regions is proposed, and its preservation reduct (CRP-Reduct) is studied. (2) Reduction targets and preservation properties of set regions are analyzed, and the set-region preservation reduct (SRP-Reduct) is studied. (3) Separability of set regions and rule consistency is verified, and the quantitative and qualitative double-preservation reduct (DP-Reduct) is established. (4) Hierarchies of CRP-Reduct, SRP-Reduct, and DP-Reduct are explored with two qualitative reducts: the Pawlak-Reduct and knowledge-preservation reduct (KP-Reduct). (5) Finally, verification experiments are provided. CRP-Reduct, SRP-Reduct, and DP-Reduct expand layer by layer Pawlak-Reduct and exhibit quantitative applicability, and the experimental results indicate their effectiveness and hierarchies regarding Pawlak-Reduct and KP-Reduct.

Xianyong Zhang; Duoqian Miao

2014-01-01T23:59:59.000Z

331

Quantitative Peptidomics Study Reveals That a Wound-Induced Peptide from PR-1 Regulates Immune Signaling in Tomato  

Science Journals Connector (OSTI)

...J., Pan, H., Biswas, R., Fricker, L.D. (2005). Quantitative neuropeptidomics of microwave-irradiated mouse brain and pituitary. Mol. Cell. Proteomics 4 : 1391-1405. Chen, C.J., Chen, W.Y., Tseng, M.C., Chen, Y.R...

Ying-Lan Chen; Chi-Ying Lee; Kai-Tan Cheng; Wei-Hung Chang; Rong-Nan Huang; Hong Gil Nam; Yet-Ran Chen

2014-10-31T23:59:59.000Z

332

Ultrafast and quantitative X-tomography and simulation of hollow-cone gasoline direct-injection sprays.  

SciTech Connect (OSTI)

Gasoline direct injection (GDI) has the potential to greatly improve internal combustion engine performance through precise control of the injection rate, timing, and combustion of the fuel. A thorough characterization of the hydrodynamics of fuel injection has to come from a precise, quantitative analysis of the sprays, especially in the near-nozzle region. A lack of knowledge of the fuel-spray dynamics has severely limited computational modeling of the sprays and design of improved injection systems. Previously, the structure and dynamics of highly transient fuel sprays have never been visualized or reconstructed in three dimensions (3D) due to numerous technical difficulties. By using an ultrafast x-ray detector and intense monochromatic x-ray beams from synchrotron radiation, the fine structures and dynamics of 1-ms GDI fuel sprays from an outwardly opening nozzle were elucidated by a newly developed, ultrafast, microsecond computed microtomography (CT) technique. In a time-resolved manner, many detailed features associated with the transient fuel flows are readily observable in the quantitatively reconstructed 3D fuel spray density distribution as a result of the quantitative CT technique. More importantly, a computational fluid dynamics (CFD) simulation based on the Taylor analogy breakup (TAB) model has also been performed using the boundary and initial conditions obtained from the experiment data. The experimental and numerical results are in good agreement quantitatively. These results not only reveal the characteristics of the GDI fuel sprays with unprecedented detail, but will also facilitate realistic computational fluid dynamic simulations in highly transient, multiphase systems.

Liu, X.; Im, K-S; Wang, Y.; Wang, J.; Tate, M.W.; Ercan, A.; Schuette, D.R.; Gruner, S.M. (X-Ray Science Division); (Cornell Univ.)

2007-01-01T23:59:59.000Z

333

Quantitative in-cylinder NO-LIF imaging in a realistic gasoline engine with spray-guided direct injection  

E-Print Network [OSTI]

Quantitative in-cylinder NO-LIF imaging in a realistic gasoline engine with spray-guided direct of engines with gasoline direct injection. Exhaust gas aftertreatment requires storage catalysts fractions in a gasoline engine with spray-guided direct injection using laser-induced fluorescence (LIF

Lee, Tonghun

334

Assistant Professor in Quantitative Genomics POSITION: This is a 12-month tenure track faculty position with a 80% research and  

E-Print Network [OSTI]

Assistant Professor in Quantitative Genomics POSITION: This is a 12-month tenure track faculty, statistical genomics, genome-wide analysis, gene-environment interactions, and/or epigenetics of crop plants/statistical genomics to crop plants is expected. UGA offers a vibrant research environment with potential

Arnold, Jonathan

335

Advances in experimental technique for quantitative two-dimensional dopant profiling by scanning capacitance microscopy  

Science Journals Connector (OSTI)

Several advances have been made toward the achievement of quantitative two-dimensional dopant and carrier profiling. To improve the dielectric and charge properties of the oxide–silicon interface a method of low temperature heat treatment has been developed which produces an insulating layer with consistent quality and reproducibility. After a standard polishing procedure is applied to cross-sectional samples the samples are heated to 300?°C for 30 min under ultraviolet illumination. This additional surface treatment dramatically improves dielectric layer uniformity scanning capacitancemicroscopy (SCM) signal to noise ratio and C–V curve flat band offset. Examples of the improvement in the surface quality and comparisons of converted SCM data with secondary ion mass spectrometry(SIMS) data are shown. A SCM tip study has also been performed that indicates significant tip depletion problems can occur. It is shown that dopedsilicon tips are often depleted by the applied SCM bias voltage causing errors in the SCM measured profile. Worn metalcoated and silicided silicon tips also can cause similar problems. When these effects are tested for and eliminated excellent agreement can be achieved between quantitative SCM profiles and SIMS data over a five-decade range of dopant density using a proper physical model. The impact of the tip size and shape on SCM spatial accuracy is simulated. A flat tip model gives a good agreement with experimental data. It is found that the dc offset used to compensate the C–V curve flat band shift has a consistently opposite sign on p- and n-type substrates. This corresponds to a positive surface on p-type silicon and to a negative surface on n-type silicon. Rectification of the large capacitance probing voltage is considered as a mechanism responsible for the apparent flat band shift of (0.4–1) V measured on the samples after heating under UV irradiation. To explain the larger flat band shift of (1–5) V tip induced charging of water-related traps is proposed and discussed.

V. V. Zavyalov; J. S. McMurray; C. C. Williams

1999-01-01T23:59:59.000Z

336

A novel Ebola virus expressing luciferase allows for rapid and quantitative testing of antivirals  

Science Journals Connector (OSTI)

Abstract Ebola virus (EBOV) causes a severe hemorrhagic fever with case fatality rates of up to 90%, for which no antiviral therapies are available. Antiviral screening is hampered by the fact that development of cytopathic effect, the easiest means to detect infection with wild-type EBOV, is relatively slow. To overcome this problem we generated a recombinant EBOV carrying a luciferase reporter. Using this virus we show that EBOV entry is rapid, with viral protein expression detectable within 2 h after infection. Further, luminescence-based assays were developed to allow highly sensitive titer determination within 48 h. As a proof-of-concept for its utility in antiviral screening we used this virus to assess neutralizing antibodies and siRNAs, with significantly faster screening times than currently available wild-type or recombinant viruses. The availability of this recombinant virus will allow for more rapid and quantitative evaluation of antivirals against EBOV, as well as the study of details of the EBOV life cycle.

Thomas Hoenen; Allison Groseth; Julie Callison; Ayato Takada; Heinz Feldmann

2013-01-01T23:59:59.000Z

337

Quantitative analysis of basin-scale heterogeneities using sonic-log data in the Yanchang Basin  

Science Journals Connector (OSTI)

A random medium is used to investigate reservoir heterogeneities in this study. Random media are characterized by autocorrelation functions that allow a construction of spatially anisotropic random structures with different correlation lengths and fluctuation standard deviations. Based on the analysis, we calculate a power spectrum using fast Fourier transform (FFT), which is observed in spatial wavelengths ranging from a few metres to a few thousand metres. Correlation distance and root mean square (RMS) height are directly obtained from the power spectrum. Numerical experiments show that the correlation length and fluctuation standard deviation can cause correlation distance and RMS height undergoing variations. Combining the characteristics of statistical parameters and sonic-log data, we quantitatively analyse the reservoir heterogeneities in the Yanchang Basin. The correlation distance and RMS height of coarse lithofacies in fluvial sandstones interpret a high-energy deposit and strong heterogeneity, affected by different lithological combinations. The correlation lengths decrease gradually from shales, tight sands to gas-bearing sands. Using the sonic-log data from 28 wells in the Yanchang Basin, we compute the isolines of correlation distances and RMS heights for both the He-8 and Shan-1 members in the studied area, which present a correlation with the distribution of gas. This offers an improved foundation for reservoir lateral prediction.

He-Zhen Wu; Li-Yun Fu; Hong-Kui Ge

2010-01-01T23:59:59.000Z

338

Quantitative method for measuring heat flux emitted from a cryogenic object  

DOE Patents [OSTI]

The present invention is a quantitative method for measuring the total heat flux, and of deriving the total power dissipation, of a heat-fluxing object which includes the steps of placing an electrical noise-emitting heat-fluxing object in a liquid helium bath and measuring the superfluid transition temperature of the bath. The temperature of the liquid helium bath is thereafter reduced until some measurable parameter, such as the electrical noise, exhibited by the heat-fluxing object or a temperature-dependent resistive thin film in intimate contact with the heat-fluxing object, becomes greatly reduced. The temperature of the liquid helum bath is measured at this point. The difference between the superfluid transition temperature of the liquid helium bath surrounding the heat-fluxing object, and the temperature of the liquid helium bath when the electrical noise emitted by the heat-fluxing object becomes greatly reduced, is determined. The total heat flux from the heat-fluxing object is determined as a function of this difference between these temperatures. In certain applications, the technique can be used to optimize thermal design parameters of cryogenic electronics, for example, Josephson junction and infrared sensing devices.

Duncan, R.V.

1993-03-16T23:59:59.000Z

339

Quantitative contribution of resistance sources of components to stack performance for planar solid oxide fuel cells  

Science Journals Connector (OSTI)

Abstract This study detects the resistance that influences the stack performance of \\{SOFCs\\} with composition of Ni-YSZ/YSZ/LSC-YSZ and investigates the variation patterns of the resistances of the stack repeating unit (SRU) during operation and their quantitative contributions to its performance at 700 °C, 750 °C and 800 °C. The results indicate that when the cell cathode contacts the interconnect well, the cell resistance accounts for 70.1–79.7% of that of the SRU, and the contact resistance (CR) between the cathode current-collecting layer (CCCL) and the interconnect accounts for 20.0–28.9%. The CR between the anode current-collecting layer (ACCL) and the interconnect together with the resistance of the interconnect can be neglected during instantaneous I–V testing. When the stack is discharged at constant current for 600 h, cell resistance increases by 28.3%, accounting for 93.3% of the SRU degradation, the anodic CR increases by 36.4%, accounting for 6.7% of the SRU degradation, and the resistances of the cathode contact and its neighbor interconnect remain unchanged. Therefore, the increase of the cell resistance is the main reason causing the SRU degradation, and the anodic contact is also an influencing factor that cannot be neglected during stable operation.

Le Jin; Wanbing Guan; Xiao Ma; Huijuan Zhai; Wei Guo Wang

2014-01-01T23:59:59.000Z

340

Model-independent quantitative measurement of nanomechanical oscillator vibrations using electron-microscope linescans  

SciTech Connect (OSTI)

Nanoscale mechanical resonators are highly sensitive devices and, therefore, for application as highly sensitive mass balances, they are potentially superior to micromachined cantilevers. The absolute measurement of nanoscale displacements of such resonators remains a challenge, however, since the optical signal reflected from a cantilever whose dimensions are sub-wavelength is at best very weak. We describe a technique for quantitative analysis and fitting of scanning-electron microscope (SEM) linescans across a cantilever resonator, involving deconvolution from the vibrating resonator profile using the stationary resonator profile. This enables determination of the absolute amplitude of nanomechanical cantilever oscillations even when the oscillation amplitude is much smaller than the cantilever width. This technique is independent of any model of secondary-electron emission from the resonator and is, therefore, applicable to resonators with arbitrary geometry and material inhomogeneity. We demonstrate the technique using focussed-ion-beam–deposited tungsten cantilevers of radius ?60–170 nm inside a field-emission SEM, with excitation of the cantilever by a piezoelectric actuator allowing measurement of the full frequency response. Oscillation amplitudes approaching the size of the primary electron-beam can be resolved. We further show that the optimum electron-beam scan speed is determined by a compromise between deflection of the cantilever at low scan speeds and limited spatial resolution at high scan speeds. Our technique will be an important tool for use in precise characterization of nanomechanical resonator devices.

Wang, Huan; Fenton, J. C.; Chiatti, O. [London Centre for Nanotechnology, University College London, 17–19 Gordon Street, London WC1H 0AH (United Kingdom)] [London Centre for Nanotechnology, University College London, 17–19 Gordon Street, London WC1H 0AH (United Kingdom); Warburton, P. A. [London Centre for Nanotechnology, University College London, 17–19 Gordon Street, London WC1H 0AH (United Kingdom) [London Centre for Nanotechnology, University College London, 17–19 Gordon Street, London WC1H 0AH (United Kingdom); Department of Electronic and Electrical Engineering, University College London, Torrington Place, London WC1E 7JE (United Kingdom)

2013-07-15T23:59:59.000Z

Note: This page contains sample records for the topic "quantitative trait loci" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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341

Quantitative method for measuring heat flux emitted from a cryogenic object  

DOE Patents [OSTI]

The present invention is a quantitative method for measuring the total heat flux, and of deriving the total power dissipation, of a heat-fluxing object which includes the steps of placing an electrical noise-emitting heat-fluxing object in a liquid helium bath and measuring the superfluid transition temperature of the bath. The temperature of the liquid helium bath is thereafter reduced until some measurable parameter, such as the electrical noise, exhibited by the heat-fluxing object or a temperature-dependent resistive thin film in intimate contact with the heat-fluxing object, becomes greatly reduced. The temperature of the liquid helum bath is measured at this point. The difference between the superfluid transition temperature of the liquid helium bath surrounding the heat-fluxing object, and the temperature of the liquid helium bath when the electrical noise emitted by the heat-fluxing object becomes greatly reduced, is determined. The total heat flux from the heat-fluxing object is determined as a function of this difference between these temperatures. In certain applications, the technique can be used to optimize thermal design parameters of cryogenic electronics, for example, Josephson junction and infra-red sensing devices.

Duncan, Robert V. (Tijeras, NM)

1993-01-01T23:59:59.000Z

342

Delineating Rearrangements in Single Yeast Artificial Chromosomes by Quantitative DNA Fiber Mapping  

SciTech Connect (OSTI)

Cloning of large chunks of human genomic DNA in recombinant systems such as yeast or bacterial artificial chromosomes has greatly facilitated the construction of physical maps, the positional cloning of disease genes or the preparation of patient-specific DNA probes for diagnostic purposes. For this process to work efficiently, the DNA cloning process and subsequent clone propagation need to maintain stable inserts that are neither deleted nor otherwise rearranged. Some regions of the human genome; however, appear to have a higher propensity than others to rearrange in any host system. Thus, techniques to detect and accurately characterize such rearrangements need to be developed. We developed a technique termed 'Quantitative DNA Fiber Mapping (QDFM)' that allows accurate tagging of sequence elements of interest with near kilobase accuracy and optimized it for delineation of rearrangements in recombinant DNA clones. This paper demonstrates the power of this microscopic approach by investigating YAC rearrangements. In our examples, high-resolution physical maps for regions within the immunoglobulin lambda variant gene cluster were constructed for three different YAC clones carrying deletions of 95 kb and more. Rearrangements within YACs could be demonstrated unambiguously by pairwise mapping of cosmids along YAC DNA molecules. When coverage by YAC clones was not available, distances between cosmid clones were estimated by hybridization of cosmids onto DNA fibers prepared from human genomic DNA. In addition, the QDFM technology provides essential information about clone stability facilitating closure of the maps of the human genome as well as those of model organisms.

Weier, Heinz-Ulrich G.; Greulich-Bode, Karin M.; Wu, Jenny; Duell, Thomas

2009-09-18T23:59:59.000Z

343

Spectroscopic imaging system for quantitative analysis of the divertor plasma of the Tokamak de Varennes  

SciTech Connect (OSTI)

A toroidally viewing spectroscopic imaging system has been developed for the Tokamak de Varennes providing measurements of the poloidal distribution of the absolute radiated power of deuterium and impurity species in the upper divertor region. Real time digitization is achieved using a low cost PC based digital imaging system. This system is used to obtain measurements of the divertor strike point as well as the shape of the flux surfaces in the divertor. The diagnostic{close_quote}s excellent spatial resolution and toroidal view provides an opportunity to quantitatively compare the measured two dimensional (2D) radiated power distribution to that calculated from 2D Monte Carlo transport codes. These 2D images provide unique and valuable information on the physics of local plasma interactions with divertor components and particle transport in a closed divertor. Additionally, by using two cameras simultaneously, the line ratio technique can be applied to the images to estimate plasma parameters in the divertor. {copyright} {ital 1997 American Institute of Physics. }

Meo, F.; Stansfield, B.L.; Chartre, M.; de Villers, P.; Marchand, R.; Ratel, G. [Centre Canadien de Fusion Magnetique, 1804 Boulevard Lionel-Boulet, Varennes, Quebec, J3X 1S1 (CANADA)] [Centre Canadien de Fusion Magnetique, 1804 Boulevard Lionel-Boulet, Varennes, Quebec, J3X 1S1 (CANADA)

1997-09-01T23:59:59.000Z

344

Quantitative X-Ray Phase-Contrast Microtomography from a Compact Laser Driven Betatron Source  

E-Print Network [OSTI]

X-ray phase-contrast imaging has recently led to a revolution in resolving power and tissue contrast in biomedical imaging, microscopy and materials science. The necessary high spatial coherence is currently provided by either large-scale synchrotron facilities with limited beamtime access or by microfocus X-ray tubes with rather limited flux. X-rays radiated by relativistic electrons driven by well-controlled high-power lasers offer a promising route to a proliferation of this powerful imaging technology. A laser-driven plasma wave accelerates and wiggles electrons, giving rise to brilliant keV X-ray emission. This so-called Betatron radiation is emitted in a collimated beam with excellent spatial coherence and remarkable spectral stability. Here we present the first phase-contrast micro-tomogram revealing quantitative electron density values of a biological sample using betatron X-rays, and a comprehensive source characterization. Our results suggest that laser-based X-ray technology offers the potential fo...

Wenz, J; Khrennikov, K; Bech, M; Thibault, P; Heigoldt, M; Pfeiffer, F; Karsch, S

2014-01-01T23:59:59.000Z

345

Nucleophosmin in the pathogenesis of arsenic-related bladder carcinogenesis revealed by quantitative proteomics  

SciTech Connect (OSTI)

To investigate the molecular mechanisms of arsenic (As)-associated carcinogenesis, we performed proteomic analysis on E7 immortalized human uroepithelial cells after treatment with As in vitro. Quantitative proteomics was performed using stable isotope dimethyl labeling coupled with two-dimensional liquid chromatography peptide separation and mass spectrometry (MS)/MS analysis. Among 285 proteins, a total of 26 proteins were upregulated (ratio > 2.0) and 18 proteins were downregulated (ratio < 0.65) by As treatment, which are related to nucleotide binding, lipid metabolism, protein folding, protein biosynthesis, transcription, DNA repair, cell cycle control, and signal transduction. This study reports the potential significance of nucleophosmin (NPM) in the As-related bladder carcinogenesis. NPM was universally expressed in all of uroepithelial cell lines examined, implying that NPM may play a role in human bladder carcinogenesis. Upregulation of NPM tends to be dose- and time-dependent after As treatment. Expression of NPM was associated with cell proliferation, migration and anti-apoptosis. On the contrary, soy isoflavones inhibited the expression of NPM in vitro. The results suggest that NPM may play a role in the As-related bladder carcinogenesis, and soybean-based foods may have potential in the suppression of As/NPM-related tumorigenesis.

Chen Shuhui [Department of Chemistry, College of Sciences, National Cheng Kung University, Tainan 701, Taiwan (China); Wang Yiwen [Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan (China); Hsu Jueliang [Department of Chemistry, College of Sciences, National Cheng Kung University, Tainan 701, Taiwan (China); Chang Hongyi [Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan (China); Wang Chiyun [Graduate Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan (China); Shen Potsun [Department of Chemistry, College of Sciences, National Cheng Kung University, Tainan 701, Taiwan (China); Chiang Chiwu [Graduate Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan (China); Chuang Jingjing [Department of Microbiology and Immunology, National Chiayi University, Chiayi 600, Taiwan (China); Tsai Hungwen [Department of Pathology, National Cheng Kung University Hospital, Tainan 704, Taiwan (China); Gu Powen [Department of Clinical Pathology, Chang Gung Memorial Hospital, Tao-Yuan 333, Taiwan (China); Chang Fangchih [Instrument Center, National Cheng Kung University, Tainan 701, Taiwan (China); Liu Hsiaosheng, E-mail: a713@mail.ncku.edu.t [Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan (China); Chow Nanhaw, E-mail: chownh@mail.ncku.edu.t [Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan (China); Graduate Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan (China); Department of Pathology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan (China)

2010-01-15T23:59:59.000Z

346

Multiple-wavelength spectroscopic quantitation of light-absorbing species in scattering media  

DOE Patents [OSTI]

An oxygen concentration measurement system for blood hemoglobin comprises a multiple-wavelength low-coherence optical light source that is coupled by single mode fibers through a splitter and combiner and focused on both a target tissue sample and a reference mirror. Reflections from both the reference mirror and from the depths of the target tissue sample are carried back and mixed to produce interference fringes in the splitter and combiner. The reference mirror is set such that the distance traversed in the reference path is the same as the distance traversed into and back from the target tissue sample at some depth in the sample that will provide light attenuation information that is dependent on the oxygen in blood hemoglobin in the target tissue sample. Two wavelengths of light are used to obtain concentrations. The method can be used to measure total hemoglobin concentration [Hb.sub.deoxy +Hb.sub.oxy ] or total blood volume in tissue and in conjunction with oxygen saturation measurements from pulse oximetry can be used to absolutely quantify oxyhemoglobin [HbO.sub.2 ] in tissue. The apparatus and method provide a general means for absolute quantitation of an absorber dispersed in a highly scattering medium.

Nathel, Howard (Albany, CA); Cartland, Harry E. (Livermore, CA); Colston, Jr., Billy W. (Livermore, CA); Everett, Matthew J. (Pleasanton, CA); Roe, Jeffery N. (San Ramon, CA)

2000-01-01T23:59:59.000Z

347

Quantitative autoradiography of muscarinic and benzodiazepine receptors in the forebrain of the turtle, Pseudemys scripta  

SciTech Connect (OSTI)

The distribution of muscarinic and benzodiazepine receptors was investigated in the turtle forebrain by the technique of in vitro receptor autoradiography. Muscarinic binding sites were labeled with 1 nM /sup 3/H-quinuclidinyl benzilate (/sup 3/H-QNB), and benzodiazepine sites were demonstrated with the aid of 1 nM /sup 3/H-flunitrazepam (/sup 3/H-FLU). Autoradiograms generated on /sup 3/H-Ultrofilm apposed to tissue slices revealed regionally specific distributions of muscarinic and benzodiazepine binding sites that are comparable with those for mammalian brain. Dense benzodiazepine binding was found in the anterior olfactory nucleus, the lateral and dorsal cortices, and the dorsal ventricular ridge (DVR), a structure with no clear mammalian homologue. Muscarinic binding sites were most dense in the striatum, accumbens, DVR, lateral geniculate, and the anterior olfactory nucleus. Cortical binding sites were studied in greater detail by quantitative analysis of autoradiograms generated by using emulsion-coated coverslips. Laminar gradients of binding were observed that were specific for each radioligand; /sup 3/H-QNB sites were most dense in the inner molecular layer in all cortical regions, whereas /sup 3/H-FLU binding was generally most concentrated in the outer molecular layer and was least dense through all layers in the dorsomedial cortex. Because pyramidal cells are arranged in register in turtle cortex, the laminar patterns of receptor binding may reflect different receptor density gradients along pyramidal cell dendrites.

Schlegel, J.R.; Kriegstein, A.R.

1987-11-22T23:59:59.000Z

348

Quantitative IR Spectrum and Vibrational Assignments for Glycolaldehyde Vapor: Glycolaldehyde Measurements in Biomass Burning Plumes  

SciTech Connect (OSTI)

Glycolaldehyde (GA, 2-hydroxyethanal, C2H4O2) is a semi-volatile molecule of atmospheric importance, recently proposed as a precursor in the formation of aqueous-phase secondary organic aerosol (SOA). There are few methods to measure glycolaldehyde vapor, but infrared spectroscopy has been used successfully. Using vetted protocols we have completed the first assignment of all fundamental vibrational modes and derived quantitative IR absorption band strengths using both neat and pressure-broadened GA vapor. Even though GA is problematic due to its propensity to both dimerize and condense, our intensities agree well with the few previously published values. Using the reference ?10 band Q-branch at 860.51 cm-1, we have also determined GA mixing ratios in biomass burning plumes generated by field and laboratory burns of fuels from the southeastern and southwestern United States, including the first field measurements of glycolaldehyde in smoke. The GA emission factors were anti-correlated with modified combustion efficiency confirming release of GA from smoldering combustion. The GA emission factors (g of GA emitted per kg dry biomass burned on a dry mass basis) had a low dependence on fuel type consistent with the production mechanism being pyrolysis of cellulose. GA was emitted at 0.23 ± 0.13% of CO from field fires and we calculate that it accounts for ~18% of the aqueous-phase SOA precursors that we were able to measure.

Johnson, Timothy J.; Sams, Robert L.; Profeta, Luisa T.; Akagi, Sheryl; Burling, Ian R.; Yokelson, Robert J.; Williams, Stephen D.

2013-04-15T23:59:59.000Z

349

DistalLess Regulates Eyespot Patterns and Melanization in  

E-Print Network [OSTI]

developmental networks to produce novel traits (True and Carroll, 2002). From a micro evolutionary perspective, however, the focus has been to identify the loci, within these novel networks, involved in trait modifica; Shapiro et al., 2006). Butterfly eyespots have been the focus of both macro and micro evolutionary

Monteiro, AntĂłnia

350

Personality Traits and User Behavior  

E-Print Network [OSTI]

and below the median value. This is illustrated in Fig. 9 below. 28 y = 0.0519x + 1.3563 R2 = 0.9743 y = 0.049x + 1.0474 R2 = 0.9811 1 2 3 4 5 6 7 8 0 12 24 36 48 60 72 84 96 108 120 132 Num Icons Se ar ch Ti m e (se co n ds... 2000;42(4):630-635. 37 APPENDIX A Icon Search Results SAS program PROC GLM; CLASS Animation Icons; MODEL Time = O C E A N Animation |Icons / noint solution; RUN; Table A.1 Results of SAS Program. The SAS System The GLM Procedure...

King, Christopher Ronald

2012-02-14T23:59:59.000Z

351

RACIAL DIFFERENCES IN MENTAL TRAITS  

Science Journals Connector (OSTI)

...the stock from which it sprang. Natural selection has been suggested as...difficulty here, since we should expect natural selection to begin by lopping off...metaphysical philosophy and president of Corpus Christi College, Oxford University, has...

R. S. WOODWORTH

1910-02-04T23:59:59.000Z

352

Effects of continual burial by sediment on morphological traits and dry mass allocation of Suaeda salsa seedlings in the Yellow River estuary: An experimental study  

Science Journals Connector (OSTI)

Abstract Information on the effects of continual burial by sediment on seedling survival and morphological growth in coastal marsh remains scarce. A greenhouse experiment was conducted to determine the effects of continual burial on seedling mortality, growth and dry mass allocation of Suaeda salsa in the coastal marsh of the Yellow River estuary. The seeds were planted at 0.5 cm depth in plastic pots filled with unsterilized sediment on May 5, 2012. A depth of 8 cm was chosen as the maximum of continual burial according to the sedimentary rate (6–7 cm) in the coastal marsh at seedling stage. Two weeks after emergence, seedlings were artificially buried to depths of 0 (D0, no burial), 33% (D33, burial of 1 mm d?1), 67% (D67, burial of 2 mm d?1), 100% (D100, burial of 3 mm d?1) and 133% (D133, burial of 4 mm d?1) of their mean height, with 20 days in total. Results showed that seedling height, stem and taproot diameter, number of branch, hypocotyl and taproot length, and dry mass were significantly affected by burial depth (p < 0.05). No seedlings died in the four burial treatments. Seedling heights in the D33 and D67 treatments were higher than those of the other treatments, indicating that shallow and moderate burials exhibited greater stimulation to seedling growth. Although stem diameter, number and length of branch, and dry mass of seedlings were stimulated in the four burials, the greatest stimulatory effect on stem diameter was observed in the D100 treatment while that on number and length of branch and dry mass occurred in the D67 treatment. With increasing burial depth (D67, D100 and D133), seedling taproot diameter and length decreased while hypocotyl length increased, reflecting that hypocotyl elongation might occur at the expense of development of the root system. The responses of morphological traits and dry mass allocation of S. salsa seedlings to the burial treatments indicated that they might have a special strategy to tolerate the continual burial in the coastal marsh of the Yellow River estuary. The use of thin-layer burial (2 mm d?1) to promote seedling vigor in degraded S. salsa marsh was feasible, and our study provided valuable information for the restoration of S. salsa marsh during seedling growth.

Zhigao Sun; Hongli Song; Wenguang Sun; Jingkuan Sun

2014-01-01T23:59:59.000Z

353

Rapid Quantification of Viable Campylobacter Bacteria on Chicken Carcasses, Using Real-Time PCR and Propidium Monoazide Treatment, as a Tool for Quantitative Risk Assessment  

Science Journals Connector (OSTI)

...bacteria are applicable as tools for risk assessment and assurance of food...rapid detection and as a tool for quantitative risk assessment of food-borne thermotolerant...monoazide treatment, as a tool for quantitative risk assessment. | A number of intervention...

M. H. Josefsen; C. Löfström; T. B. Hansen; L. S. Christensen; J. E. Olsen; J. Hoorfar

2010-06-18T23:59:59.000Z

354

THE SAP3 COMPUTER PROGRAM FOR QUANTITATIVE MULTIELEMENT ANALYSIS BY ENERGY DISPERSIVE X-RAY FLUORESCENCE  

SciTech Connect (OSTI)

SAP3 is a dual-function FORTRAN computer program which performs peak analysis of energy-dispersive x-ray fluorescence spectra and then quantitatively interprets the results of the multielement analysis. It was written for mono- or bi-chromatic excitation as from an isotopic or secondary excitation source, and uses the separate incoherent and coherent backscatter intensities to define the bulk sample matrix composition. This composition is used in performing fundamental-parameter matrix corrections for self-absorption, enhancement, and particle-size effects, obviating the need for specific calibrations for a given sample matrix. The generalized calibration is based on a set of thin-film sensitivities, which are stored in a library disk file and used for all sample matrices and thicknesses. Peak overlap factors are also determined from the thin-film standards, and are stored in the library for calculating peak overlap corrections. A detailed description is given of the algorithms and program logic, and the program listing and flow charts are also provided. An auxiliary program, SPCAL, is also given for use in calibrating the backscatter intensities. SAP3 provides numerous analysis options via seventeen control switches which give flexibility in performing the calculations best suited to the sample and the user needs. User input may be limited to the name of the library, the analysis livetime, and the spectrum filename and location. Output includes all peak analysis information, matrix correction factors, and element concentrations, uncertainties and detection limits. Twenty-four elements are typically determined from a 1024-channel spectrum in one-to-two minutes using a PDP-11/34 computer operating under RSX-11M.

Nielson,, K. K.; Sanders,, R. W.

1982-04-01T23:59:59.000Z

355

Quantitative study of fluctuation effects by fast lattice Monte Carlo simulations: Compression of grafted homopolymers  

SciTech Connect (OSTI)

Using fast lattice Monte Carlo (FLMC) simulations [Q. Wang, Soft Matter 5, 4564 (2009)] and the corresponding lattice self-consistent field (LSCF) calculations, we studied a model system of grafted homopolymers, in both the brush and mushroom regimes, in an explicit solvent compressed by an impenetrable surface. Direct comparisons between FLMC and LSCF results, both of which are based on the same Hamiltonian (thus without any parameter-fitting between them), unambiguously and quantitatively reveal the fluctuations/correlations neglected by the latter. We studied both the structure (including the canonical-ensemble averages of the height and the mean-square end-to-end distances of grafted polymers) and thermodynamics (including the ensemble-averaged reduced energy density and the related internal energy per chain, the differences in the Helmholtz free energy and entropy per chain from the uncompressed state, and the pressure due to compression) of the system. In particular, we generalized the method for calculating pressure in lattice Monte Carlo simulations proposed by Dickman [J. Chem. Phys. 87, 2246 (1987)], and combined it with the Wang-Landau–Optimized Ensemble sampling [S. Trebst, D. A. Huse, and M. Troyer, Phys. Rev. E 70, 046701 (2004)] to efficiently and accurately calculate the free energy difference and the pressure due to compression. While we mainly examined the effects of the degree of compression, the distance between the nearest-neighbor grafting points, the reduced number of chains grafted at each grafting point, and the system fluctuations/correlations in an athermal solvent, the ?-solvent is also considered in some cases.

Zhang, Pengfei; Wang, Qiang, E-mail: q.wang@colostate.edu [Department of Chemical and Biological Engineering, Colorado State University, Fort Collins, Colorado 80523-1370 (United States)] [Department of Chemical and Biological Engineering, Colorado State University, Fort Collins, Colorado 80523-1370 (United States)

2014-01-28T23:59:59.000Z

356

Contouring Variability of the Penile Bulb on CT Images: Quantitative Assessment Using a Generalized Concordance Index  

SciTech Connect (OSTI)

Purpose: Within a multicenter study (DUE-01) focused on the search of predictors of erectile dysfunction and urinary toxicity after radiotherapy for prostate cancer, a dummy run exercise on penile bulb (PB) contouring on computed tomography (CT) images was carried out. The aim of this study was to quantitatively assess interobserver contouring variability by the application of the generalized DICE index. Methods and Materials: Fifteen physicians from different Institutes drew the PB on CT images of 10 patients. The spread of DICE values was used to objectively select those observers who significantly disagreed with the others. The analyses were performed with a dedicated module in the VODCA software package. Results: DICE values were found to significantly change among observers and patients. The mean DICE value was 0.67, ranging between 0.43 and 0.80. The statistics of DICE coefficients identified 4 of 15 observers who systematically showed a value below the average (p value range, 0.013 - 0.059): Mean DICE values were 0.62 for the 4 'bad' observers compared to 0.69 of the 11 'good' observers. For all bad observers, the main cause of the disagreement was identified. Average DICE values were significantly worse from the average in 2 of 10 patients (0.60 vs. 0.70, p < 0.05) because of the limited visibility of the PB. Excluding the bad observers and the 'bad' patients,' the mean DICE value increased from 0.67 to 0.70; interobserver variability, expressed in terms of standard deviation of DICE spread, was also reduced. Conclusions: The obtained values of DICE around 0.7 shows an acceptable agreement, considered the small dimension of the PB. Additional strategies to improve this agreement are under consideration and include an additional tutorial of the so-called bad observers with a recontouring procedure, or the recontouring by a single observer of the PB for all patients included in the DUE-01 study.

Carillo, Viviana [Department of Medical Physics, San Raffaele Scientific Institute, Milano (Italy)] [Department of Medical Physics, San Raffaele Scientific Institute, Milano (Italy); Cozzarini, Cesare [Department of Radiotherapy, San Raffaele Scientific Institute, Milano (Italy)] [Department of Radiotherapy, San Raffaele Scientific Institute, Milano (Italy); Perna, Lucia; Calandra, Mauro [Department of Medical Physics, San Raffaele Scientific Institute, Milano (Italy)] [Department of Medical Physics, San Raffaele Scientific Institute, Milano (Italy); Gianolini, Stefano [Medical Software Solutions GmbH, Hagendorn (Switzerland)] [Medical Software Solutions GmbH, Hagendorn (Switzerland); Rancati, Tiziana [Prostate Cancer Program, IRCCS National Institute of Cancer, Milano (Italy)] [Prostate Cancer Program, IRCCS National Institute of Cancer, Milano (Italy); Spinelli, Antonello Enrico [Department of Medical Physics, San Raffaele Scientific Institute, Milano (Italy)] [Department of Medical Physics, San Raffaele Scientific Institute, Milano (Italy); Vavassori, Vittorio [Department of Radiotherapy, Cliniche Gavazzeni Humanitas, Bergamo (Italy)] [Department of Radiotherapy, Cliniche Gavazzeni Humanitas, Bergamo (Italy); Villa, Sergio [Department of Radiotherapy 1, IRCCS National Institute of Cancer, Milano (Italy)] [Department of Radiotherapy 1, IRCCS National Institute of Cancer, Milano (Italy); Valdagni, Riccardo [Prostate Cancer Program, IRCCS National Institute of Cancer, Milano (Italy) [Prostate Cancer Program, IRCCS National Institute of Cancer, Milano (Italy); Department of Radiotherapy 1, IRCCS National Institute of Cancer, Milano (Italy); Fiorino, Claudio, E-mail: fiorino.claudio@hsr.it [Department of Medical Physics, San Raffaele Scientific Institute, Milano (Italy)] [Department of Medical Physics, San Raffaele Scientific Institute, Milano (Italy)

2012-11-01T23:59:59.000Z

357

A quantitative quantum-chemical analysis tool for the distribution of mechanical force in molecules  

SciTech Connect (OSTI)

The promising field of mechanochemistry suffers from a general lack of understanding of the distribution and propagation of force in a stretched molecule, which limits its applicability up to the present day. In this article, we introduce the JEDI (Judgement of Energy DIstribution) analysis, which is the first quantum chemical method that provides a quantitative understanding of the distribution of mechanical stress energy among all degrees of freedom in a molecule. The method is carried out on the basis of static or dynamic calculations under the influence of an external force and makes use of a Hessian matrix in redundant internal coordinates (bond lengths, bond angles, and dihedral angles), so that all relevant degrees of freedom of a molecule are included and mechanochemical processes can be interpreted in a chemically intuitive way. The JEDI method is characterized by its modest computational effort, with the calculation of the Hessian being the rate-determining step, and delivers, except for the harmonic approximation, exact ab initio results. We apply the JEDI analysis to several example molecules in both static quantum chemical calculations and Born-Oppenheimer Molecular Dynamics simulations in which molecules are subject to an external force, thus studying not only the distribution and the propagation of strain in mechanically deformed systems, but also gaining valuable insights into the mechanochemically induced isomerization of trans-3,4-dimethylcyclobutene to trans,trans-2,4-hexadiene. The JEDI analysis can potentially be used in the discussion of sonochemical reactions, molecular motors, mechanophores, and photoswitches as well as in the development of molecular force probes.

Stauch, Tim; Dreuw, Andreas, E-mail: dreuw@uni-heidelberg.de [Interdisciplinary Center for Scientific Computing, University of Heidelberg, Im Neuenheimer Feld 368, 69120 Heidelberg (Germany)] [Interdisciplinary Center for Scientific Computing, University of Heidelberg, Im Neuenheimer Feld 368, 69120 Heidelberg (Germany)

2014-04-07T23:59:59.000Z

358

Extraction and Quantitative Analysis of Iodine in Solid and Solution Matrixes  

SciTech Connect (OSTI)

129I is a contaminant of interest in the vadose zone and groundwater at numerous federal and privately-owned facilities. Several techniques have been utilized to extract iodine from solid matrices; however, all of them rely on two fundamental approaches: liquid extraction or chemical/heat facilitated volatilization. While these methods are typically chosen for their ease of implementation, they do not totally dissolve the solid. Because some of the iodine partitions onto the soil, extraction methods that do not result in total sample dissolution could underestimate the total iodine content of solid samples. We defined a method that produces complete solid dissolution and conducted laboratory tests to assess its efficacy to completely extract iodine from solid matrices. Testing consisted of potassium nitrate/potassium hydroxide fusion of the sample, followed by sample dissolution in a mixture of sulfuric acid and sodium bisulfite. Direct analysis of the dissolved sample was performed via inductively coupled plasma mass spectrometry (Perkin Elmer Elan DRC II) using a tertiary amine (Spectrasol CFA-C) carrier solution. The fusion extraction method resulted in complete sample dissolution of all solid matrices tested: sediment, glass samples containing low-levels of iodine, as well as tank waste material collected from the Hanford Site. Quantitative analysis of iodine (127I and 129I) showed better than ? 10% accuracy for certified reference standards, with the linear operating range extending more than three orders of magnitude (0.005 to 5 ug/L). Extraction and analysis of four replicates of standard reference material (San Joaquin Soil) from the National Institute of Standards and Technology, Gaithersburg, MD, resulted in an average recovery of 98% with a relative percent deviation of 6%. This simple and cost-effective technique can be applied to solid samples of varying matrices with little or no adaptation.

Brown, Christopher F.; Geiszler, Keith N.; Vickerman, Tanya S.

2005-11-01T23:59:59.000Z

359

Quantitative Determination of Dielectric Thin-Film Properties Using Infrared Emission Spectroscopy  

SciTech Connect (OSTI)

We have completed an experimental study to investigate the use of infrared emission spectroscopy (IRES) for the quantitative analysis of borophosphosilicate glass (BPSG) thin films on silicon monitor wafers. Experimental parameters investigated included temperatures within the range used in the microelectronics industry to produce these films; hence the potential for using the IRES technique for real-time monitoring of the film deposition process has been evaluated. The film properties that were investigated included boron content, phosphorus content, film thickness, and film temperature. The studies were conducted over two temperature ranges, 125 to 225 *C and 300 to 400 *C. The later temperature range includes realistic processing temperatures for the chemical vapor deposition (CVD) of the BPSG films. Partial least squares (PLS) multivariate calibration methods were applied to spectral and film property calibration data. The cross-validated standard errors of prediction (CVSEP) fi-om the PLS analysis of the IRES spectraof21 calibration samples each measured at 6 temperatures in the 300 to 400 "C range were found to be 0.09 wt. `?40 for B, 0.08 wt. `%0 for P, 3.6 ~m for film thickness, and 1.9 *C for temperature. By lowering the spectral resolution fi-om 4 to 32 cm-l and decreasing the number of spectral scans fi-om 128 to 1, we were able to determine that all the film properties could be measured in less than one second to the precision required for the manufacture and quality control of integrated circuits. Thus, real-time in-situ monitoring of BPSG thin films formed by CVD deposition on Si monitor wafers is possible with the methods reported here.

Franke, J.E.; Haaland, D.M.; Niemczyk, T.M.; Zhang, S.

1998-10-14T23:59:59.000Z

360

Foundations for quantitative microstructural models to track evolution of the metallurgical state during high purity Nb cavity fabrication  

SciTech Connect (OSTI)

The goal of the Materials Science SRF Cavity Group of Michigan State University and the National Superconducting Cyclotron has been (and continues to be) to understand quantitatively the effects of process history on functional properties. These relationships were assessed via studies on Nb samples and cavity parts, which had various combinations of forming processes, welding, heat treatments, and surface preparation. A primary focus was on large-grain cavity building strategies. Effects of processing operations and exposure to hydrogen on the thermal conductivity has been identified in single and bi-crystal samples, showing that the thermal conductivity can be altered by a factor of 5 depending on process history. Characterization of single crystal tensile samples show a strong effect of crystal orientation on deformation resistance and shape changes. Large grain half cells were examined to characterize defect content and surface damage effects, which provided quantitative information about the depth damage layers from forming.

Bieler, Thomas R [Michigan State University; Wright, Neil T [Michigan State University; Compton, Chris C [Facility for Rare Isotope Beams

2014-03-15T23:59:59.000Z

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


361

Formation resistivity measurements from within a cased well used to quantitatively determine the amount of oil and gas present  

DOE Patents [OSTI]

Methods to quantitatively determine the separate amounts of oil and gas in a geological formation adjacent to a cased well using measurements of formation resistivity. The steps include obtaining resistivity measurements from within a cased well of a given formation, obtaining the porosity, obtaining the resistivity of formation water present, computing the combined amounts of oil and gas present using Archie's Equations, determining the relative amounts of oil and gas present from measurements within a cased well, and then quantitatively determining the separate amounts of oil and gas present in the formation. Resistivity measurements are obtained from within the cased well by conducting A.C. current from within the cased well to a remote electrode at a frequency that is within the frequency range of 0.1 Hz to 20 Hz.

Vail, III, William Banning (Bothell, WA)

2000-01-01T23:59:59.000Z

362

Quantitative Determination of Deuterium Atom Concentration in Zinc Oxide Thin Films by Time-of-Flight Secondary Ion Mass Spectrometry  

SciTech Connect (OSTI)

ZnO is a wide-gap semiconductor with very interesting electronic properties.[1,2] Therefore, it has been extensively studied for many years. It has been found that even low centrations of hydrogen in ZnO film can considerably change its electronic behavior.[3-5] Quite a few papers have discussed this issue but it has not been fully understood. Lack of experimental data, especially quantitative data on hydrogen concentration in ZnO samples is an important reason. Dynamic SIMS is the best technique to determine concentration of hydrogen atoms in materials.[6-9] However, it is a very specific technique and the entation is mostly available in semiconductor industry. ToF-SIMS is a more versatile instrument and it is more available in universities and research institutes. Background hydrogen interference has been known to be a serious problem in quantifying hydrogen atoms in solid samples. Although SIMS is an ultra-high vacuum (UHV) technique, there are still some residual gases existing in vacuum chambers during analysis. Most of them are H2, H2O or CH4, which lead to a background that greatly interferes quantitative detection of hydrogen. Therefore, deuterium atoms have been intentionally introduced into the system to avoid this problem. Standard samples are very important for SIMS quantitative analysis. A common method to prepare such kind of standard samples is ion-implanting. Therefore, a set of standard D-ZnO samples were prepared by ion-implanting in our work. In this paper, we report using ToF-SIMS to quantitatively determine the concentration of deuterium atoms in a number of high-quality epitaxial ZnO films, with a set of standard samples as references. We are especially interested in the detection limit of deuterium concentration in ZnO. In addition, hydrogen background interference was also investigated.

Zhu, Zihua; Shutthanandan, V.; Li, Yuanjie; Chambers, Scott A.

2009-03-01T23:59:59.000Z

363

Quantitative studies of rattlesnake (Crotalus atrox: venom, venom fractions, and rabbit antivenom: Lethality, skin sensitivity, and antibody characterization.  

E-Print Network [OSTI]

QUANTITATIVE STUDIES OF RATTLESNAKE (CROTALUS ATROX) VENOM, VENOM FRACTIONS, AND RABBIT ANTIVENOM: LETHALITY, SKIN SENSITIVITY, AND ANTIBODY CHARACTERIZATION A Thesis By RICHARD PATTON BRADBURY Submitted to the Graduate College of the Texas...: LETHALITY, SKIN SENSITIVITY, AND ANTIBODY CHARACTERIZATION A Thesis By RICHARD PATTON BRADBURY Approved as to style and content by: (Chairman of Committee) Q(cf f. 4&a (Member) (Coordinator, Space Medicine (Member) Program and Member) August 1967...

Bradbury, Richard Patton

2012-06-07T23:59:59.000Z

364

Spatial and Quantitative Approach to Incorporating Stakeholder Values into Total Maximum Daily Loads: Dominguez Channel Case Study  

SciTech Connect (OSTI)

The Federal Clean Water Act (CWA) Section 303(d)(1)(A) requires each state to identify those waters that are not achieving water quality standards. The result of this assessment is called the 303(d) list. The CWA also requires states to develop and implement Total Maximum Daily Loads (TMDLs) for these waters on the 303(d) list. A TMDL specifies the maximum amount of a pollutant that a water body can receive and still meet water quality standards, and allocates the pollutant loadings to point and non-point sources. Nationwide, over 34,900 segments of waterways have been listed as impaired by the Environmental Protection Agency (EPA 2006). The EPA enlists state agencies and local communities to submit TMDL plans to reduce discharges by specified dates or have them developed by the EPA. The Department of Energy requested Lawrence Livermore National Laboratory (LLNL) to develop appropriate tools to assist in improving the TMDL process. An investigation of this process by LLNL found that plans to reduce discharges were being developed based on a wide range of site investigation methods. Our investigation found that given the resources available to the interested and responsible parties, developing a quantitative stakeholder input process and using visualization tools to display quantitative information could improve the acceptability of TMDL plans. We developed a stakeholder allocation model (SAM) which uses multi-attribute utility theory to quantitatively structure the preferences of the major stakeholder groups. We then applied GIS to display allocation options in maps representing economic activity, community groups, and city agencies. This allows allocation options and stakeholder concerns to be represented in both space and time. The primary goal of this tool is to provide a quantitative and visual display of stakeholder concerns over possible TMDL options.

Stewart, J S; Baginski, T A; Greene, K G; Smith, A; Sicherman, A

2006-06-23T23:59:59.000Z

365

PM2 DNA, Forms I and I: a quantitative comparison of strand breakage induced by ionizing radiation  

E-Print Network [OSTI]

of Advisory Committee: Dr R. D. Neff A quantitative comparison of strand breakage production rates, induced by 250 kvP X-rays, was examined for PM2 DNA, Form I and Form I . Assay of the irrad. iated DNA samples was 0 accomplished by tube gel... AND METHODS DNA Preparation Radiation Protocol Azarose 1 Buffer ~garose Gels Tube Gel Electrophoresis Spectrofluorometry with Electronic Quantif'ication RESULTS DISCUSSION AND CONCLUSION REFERENCES APPENDIX 1 APPENDIX 2 VITA ~Pa e ~ 22 22 24...

Myers, Peter Hall

1981-01-01T23:59:59.000Z

366

Highly Selective and Near-Quantitative Conversion of Fructose to 5-Hydroxymethylfurfural Using Mildly Acidic Ionic Liquids  

Science Journals Connector (OSTI)

Highly Selective and Near-Quantitative Conversion of Fructose to 5-Hydroxymethylfurfural Using Mildly Acidic Ionic Liquids ... The ionic liquid, [C4C1im][HSO4], provides an acidic solvent in which to convert fructose to 5-hydroxymethylfurfural rapidly and in high yield. ... The room-temperature ionic liquid, [C4C1im][HSO4], provides a multi-faceted medium in which to convert fructose to the versatile chemical building block, 5-hydroxymethylfurfural (HMF). ...

Sanan Eminov; James D. E. T. Wilton-Ely; Jason P. Hallett

2014-02-13T23:59:59.000Z

367

Use of SWATH mass spectrometry for quantitative proteomic investigation of Shewanella oneidensis MR-1 biofilms grown on graphite cloth electrodes  

Science Journals Connector (OSTI)

Abstract Quantitative proteomics from low biomass, biofilm samples is not well documented. In this study we show successful use of SWATH-MS for quantitative proteomic analysis of a microbial electrochemically active biofilm. Shewanella oneidensis MR-1 was grown on carbon cloth electrodes under continuous anodic electrochemical polarizations in a bioelectrochemical system (BES). Using lactate as the electron donor, anodes serving as terminal microbial electron acceptors were operated at three different electrode potentials (+0.71 V, +0.21 V & ?0.19 V vs. SHE) and the development of catalytic activity was monitored by measuring the current traces over time. Once maximum current was reached (usually within 21–29 hours) the electrochemical systems were shut off and biofilm proteins were extracted from the electrodes for proteomic assessment. SWATH-MS analysis identified 704 proteins, and quantitative comparison was made of those associated with tricarboxcylic acid (TCA) cycle. Metabolic differences detected between the biofilms suggested a branching of the S. oneidensis TCA cycle when grown at the different electrode potentials. In addition, the higher abundance of enzymes involved in the TCA cycle at higher potential indicates an increase in metabolic activity, which is expected given the assumed higher energy gains. This study demonstrates high numbers of identifications on BES biofilm samples can be achieved in comparison to what is currently reported. This is most likely due to the minimal preparation steps required for SWATH-MS.

Christy Grobbler; Bernardino Virdis; Amanda Nouwens; Falk Harnisch; Korneel Rabaey; Philip L. Bond

2014-01-01T23:59:59.000Z

368

Quantitative Infrared Intensity Studies of Vapor-Phase Glyoxal, Methylglyoxal, and 2,3-Butanedione (Diacetyl) with Vibrational Assignments  

SciTech Connect (OSTI)

Glyoxal, methylglyoxal and 2,3-butanedione (diacetyl) are all known biomass burning effluents and suspected aerosol precursors. Pressure-broadened quantitative infrared spectra of glyoxal, methylglyoxal and diacetyl vapors covering the 520–6500 cm?1 range are reported at 0.11 cm?1 resolution, each with a composite spectrum derived from a minimum of ten different sample pressures for the compound, representing some of the first quantitative data for these analytes. The ordinate corresponds to a 1 meter optical pathlength and a mixing ratio of 1ppmv at 296 K. Many vibrational assignments for methylglyoxal are reported for the first time, as are some near-IR and far-IR bands of glyoxal and diacetyl. To complete the vibrational assignments, the quantitative far-infrared spectra (25 to 600 cm-1) of all three vapors are also reported, methylglyoxal for the first time. Density functional theory and ab initio MP2 theory are used to help assign vibrational modes. Potential bands useful for atmospheric monitoring are discussed.

Profeta, Luisa T.; Sams, Robert L.; Johnson, Timothy J.; Williams, Stephen D.

2011-09-08T23:59:59.000Z

369

Quantitative determination of memantine in human plasma by GC using negative ion chemical ionization MS detection after derivatization with a new reagent, o-(pentafluorobenzyloxycarbonyl)-2,3,4,5-tetrafluorobenzoyl chloride  

Science Journals Connector (OSTI)

A method is presented for the quantitative determination of memantine in plasma by use of the derivatization ... pentafluorobenzyloxycarbonyl)-2,3,4,5-tetrafluorobenzoyl chloride. Memantine can be quantitatively ...

Hans J. Leis; Werner Windischhofer

2012-11-01T23:59:59.000Z

370

Quantitative Assessment of Detection Frequency for the INL Ambient Air Monitoring Network  

SciTech Connect (OSTI)

A quantitative assessment of the Idaho National Laboratory (INL) air monitoring network was performed using frequency of detection as the performance metric. The INL air monitoring network consists of 37 low-volume air samplers in 31 different locations. Twenty of the samplers are located on INL (onsite) and 17 are located off INL (offsite). Detection frequencies were calculated using both BEA and ESER laboratory minimum detectable activity (MDA) levels. The CALPUFF Lagrangian puff dispersion model, coupled with 1 year of meteorological data, was used to calculate time-integrated concentrations at sampler locations for a 1-hour release of unit activity (1 Ci) for every hour of the year. The unit-activity time-integrated concentration (TICu) values were calculated at all samplers for releases from eight INL facilities. The TICu values were then scaled and integrated for a given release quantity and release duration. All facilities modeled a ground-level release emanating either from the center of the facility or at a point where significant emissions are possible. In addition to ground-level releases, three existing stacks at the Advanced Test Reactor Complex, Idaho Nuclear Technology and Engineering Center, and Material and Fuels Complex were also modeled. Meteorological data from the 35 stations comprising the INL Mesonet network, data from the Idaho Falls Regional airport, upper air data from the Boise airport, and three-dimensional gridded data from the weather research forecasting model were used for modeling. Three representative radionuclides identified as key radionuclides in INL’s annual National Emission Standards for Hazardous Air Pollutants evaluations were considered for the frequency of detection analysis: Cs-137 (beta-gamma emitter), Pu-239 (alpha emitter), and Sr-90 (beta emitter). Source-specific release quantities were calculated for each radionuclide, such that the maximum inhalation dose at any publicly accessible sampler or the National Emission Standards for Hazardous Air Pollutants maximum exposed individual location (i.e., Frenchman’s Cabin) was no more than 0.1 mrem yr–1 (i.e., 1% of the 10 mrem yr–1 standard). Detection frequencies were calculated separately for the onsite and offsite monitoring network. As expected, detection frequencies were generally less for the offsite sampling network compared to the onsite network. Overall, the monitoring network is very effective at detecting the potential releases of Cs-137 or Sr-90 from all sources/facilities using either the ESER or BEA MDAs. The network was less effective at detecting releases of Pu-239. Maximum detection frequencies for Pu-239 using ESER MDAs ranged from 27.4 to 100% for onsite samplers and 3 to 80% for offsite samplers. Using BEA MDAs, the maximum detection frequencies for Pu-239 ranged from 2.1 to 100% for onsite samplers and 0 to 5.9% for offsite samplers. The only release that was not detected by any of the samplers under any conditions was a release of Pu-239 from the Idaho Nuclear Technology and Engineering Center main stack (CPP-708). The methodology described in this report could be used to improve sampler placement and detection frequency, provided clear performance objectives are defined.

A. Jeffrey Sondrup; Arthur S. Rood

2014-11-01T23:59:59.000Z

371

Quantitative Imaging of a Radiotherapeutic Drug, Na2B12H11SH, at Subcellular Resolution in Tissue Cultures Using Ion Microscopy  

Science Journals Connector (OSTI)

...cultured cells with ion microscopy. Anal. Chem., 61: 2690-2695, 1989. 9. Takagaki, M., and Mishima, Y. Boron-10 quantitative analysis of neutron capture therapy on malignant melanoma by spectrophotometric alpha-track reading...

Xiaohui Zha; Walter A. Ausserer; George H. Morrison

1992-10-01T23:59:59.000Z

372

Utility of SCaMPR Satellite versus Ground-Based Quantitative Precipitation Estimates in Operational Flood Forecasting: The Effects of TRMM Data Ingest  

Science Journals Connector (OSTI)

This study examines the utility of satellite-based quantitative precipitation estimates (QPEs) from the Self-Calibrating Multivariate Precipitation Retrieval (SCaMPR) algorithm for hydrologic prediction. In this work, two sets of SCaMPR QPEs, one ...

Haksu Lee; Yu Zhang; Dong-Jun Seo; Robert J. Kuligowski; David Kitzmiller; Robert Corby

2014-06-01T23:59:59.000Z

373

Ultrasensitive and Quantitative Detection of a New ?-Agonist Phenylethanolamine A by a Novel Immunochromatographic Assay Based on Surface-Enhanced Raman Scattering (SERS)  

Science Journals Connector (OSTI)

After ICA procedures, the specific Raman scattering intensity of MBA on the test line was measured for quantitative detection of PA. ... (21-24) However, although the conventional qualitative analysis can meet the needs of detection of some analytes (e.g., pregnancy testing), it is not suitable in some cases when the quantitative level of an analyte is important. ... The Raman intensity of the AuMBA@Ag solutions was tested by the portable Raman Analyzer. ...

Mingxin Li; Hong Yang; Shuqun Li; Kang Zhao; Jianguo Li; Danni Jiang; Lulu Sun; Anping Deng

2014-10-24T23:59:59.000Z

374

UHV Cantilever Beam Technique for Quantitative Measurements of Magnetization, Magnetostriction, and Intrinsic Stress of Ultrathin Magnetic Films  

Science Journals Connector (OSTI)

A new method—based on the cantilever beam principle—is presented, by means of which quantitative values of the magnetization, magnetostriction, and intrinsic stress of magnetic thin films can be determined. Moreover investigations of magnetic anisotropies and Curie temperature are possible. The high sensitivity achievable enables measurements even on films approaching monolayer thickness. The method is fully compatible with UHV and—via the intrinsic stress—additionally provides important information on growth mode and microstructure of the films under investigation. First results on polycrystalline Fe films demonstrate impressively the performance of the technique.

M. Weber, R. Koch, and K. H. Rieder

1994-08-22T23:59:59.000Z

375

First quantitative measurements by IR spectroscopy of dioxins and furans by means of broadly tunable quantum cascade lasers  

Science Journals Connector (OSTI)

We demonstrate the possibility of a quantitative analysis of the concentration of several dioxins and furans, among the most toxic ones, by only using infrared absorption laser spectroscopy. Two broadly tunable quantum cascade lasers, emitting in the mid-infrared, have been used to measure the absorption spectra of dioxins and furans, dissolved in CCl4, in direct absorption mode. The minimum detectable concentrations are inferred by analyzing diluted samples. A comparison between this technique and standard Fourier transform spectroscopy has been carried out and an analysis of future perspectives is reported.

M Siciliani de Cumis; F D'Amato; S Viciani; B Patrizi; P Foggi; C L Galea

2013-01-01T23:59:59.000Z

376

Soil loss and leaching, habitat destruction, land and water demand in energy-crop monoculture: some quantitative limits  

SciTech Connect (OSTI)

The environmental impacts of growing biomass for energy, especially for liquid automotive fuels, are potentially large. They are sensitive to the low power production per unit area (high land requirement) and to net energy balances. Initial quantitative estimates were made for impacts per unit power within several classes of impacts, and conversely, for limits to power produced if one avoids worst-class impacts. The following types of biomass energy technologies are considered: ethanol and methanol from grains and residues (temperate zone); jojoba wax (semi-tropical); ethanol from sugar cane and root crops (tropics); and silviculture for methanol via gasification.

Gutschick, V.P.

1981-01-01T23:59:59.000Z

377

Quantitative studies on inner interfaces in conical metal joints using hard x-ray inline phase contrast radiography  

SciTech Connect (OSTI)

Quantitative investigation of micrometer and submicrometer gaps between joining metal surfaces is applied to conical plug-socket connections in dental titanium implants. Microgaps of widths well beyond the resolving power of industrial x-ray systems are imaged by synchrotron phase contrast radiography. Furthermore, by using an analytical model for the relatively simple sample geometry and applying it to numerical forward simulations of the optical Fresnel propagation, we show that quantitative measurements of the microgap width down to 0.1 {mu}m are possible. Image data recorded at the BAMline (BESSY-II light source, Germany) are presented, with the resolving power of the imaging system being 4 {mu}m in absorption mode and {approx}14 {mu}m in phase contrast mode (z{sub 2}=0.74 m). Thus, phase contrast radiography, combined with numerical forward simulations, is capable of measuring the widths of gaps that are two orders of magnitude thinner than the conventional detection limit.

Zabler, S. [Institute for Materials Science, Technical University of Berlin, EB 13, Strasse des 17, Juni 135, D-10623 Berlin (Germany); Rack, T.; Nelson, K. [Clinic for Oral and Maxifacial Surgery, Charite University Medicine, Augustenburger Platz 1, D-13353 Berlin (Germany); Rack, A. [European Synchrotron Radiation Facility, 6 rue Jules Horowitz, BP 220, F-38043 Grenoble (France)

2010-10-15T23:59:59.000Z

378

Quantitative compositional analysis and strain study of InAs quantum wires with InGaAlAs barrier layers  

SciTech Connect (OSTI)

Quantitative compositional analysis of InAs quantum wires deposited between In{sub 0.53}Ga{sub 0.37}Al{sub 0.1}As barrier layers grown on InP substrates was performed by electron energy loss spectrometry and energy dispersive x-ray spectrometry. An indium-rich region in the center of the wire, with decreasing indium concentration toward the interface with the barrier layers, was observed from indium concentration maps for individual quantum wires. 'Stripelike' contrast modulation was observed in diffraction contrast transmission electron microscope images of the In{sub 0.53}Ga{sub 0.37}Al{sub 0.1}As barrier layer immediately above the quantum wires. The contrast originated from indium compositional modulations in the upper barrier layer as confirmed by electron energy loss spectrometry and the modulation is attributed to the presence of an inhomogeneous elastic strain field generated by the buried quantum wires. These results suggest that quantitative analysis of the composition and strain distributions at very high spatial resolution provides insights necessary to further model the physical properties and to understand the growth of these nanostructures.

Cui, K. [Department of Materials Science and Engineering, McMaster University, Hamilton, ON, L8S 4L7 (Canada); Robertson, M. D. [Department of Physics, Acadia University, Wolfville, NS, B4P 2R6 (Canada); Robinson, B. J. [Center for Emerging Device Technologies, McMaster University, Hamilton, ON, L8S 4L7 (Canada); Andrei, C. M. [Brockhouse Institute for Materials Research, McMaster University, Hamilton, ON, L8S 4L7 (Canada); Thompson, D. A. [Center for Emerging Device Technologies, McMaster University, Hamilton, ON, L8S 4L7 (Canada); Department of Engineering Physics, McMaster University, Hamilton, ON, L8S 4L7 (Canada); Botton, G. A. [Department of Materials Science and Engineering, McMaster University, Hamilton, ON, L8S 4L7 (Canada); Brockhouse Institute for Materials Research, McMaster University, Hamilton, ON, L8S 4L7 (Canada)

2009-05-01T23:59:59.000Z

379

A TEM quantitative evaluation of strengthening in an Mg-RE alloy reinforced with SiC  

SciTech Connect (OSTI)

Magnesium alloys containing rare earth elements are known to have high specific strength, good creep and corrosion resistance up to 523 K. The addition of SiC ceramic particles strengthens the metal matrix composite resulting in better wear and creep resistance while maintaining good machinability. The role of the reinforcement particles in enhancing strength can be quantitatively evaluated using transmission electron microscopy (TEM). This paper presents a quantitative evaluation of the different strengthening contributions, determined through TEM inspections, in an SiC Mg-RE composite alloy containing yttrium, neodymium, gadolinium and dysprosium. Compression tests at temperatures ranging between 290 and 573 K were carried out. The microstructure strengthening mechanism was studied for all the compression conditions. Strengthening was compared to the mechanical results and the way the different contributions were combined is also discussed and justified. - Research Highlights: {yields} TEM yield strengthening terms evaluation on a Mg-RE SiC alloy. {yields} The evaluation has been extended to different compression temperature conditions. {yields} Linear and Quadratic sum has been proposed and validated. {yields} Hall-Petch was found to be the most prominent strengthening contributions.

Cabibbo, Marcello, E-mail: m.cabibbo@univpm.it; Spigarelli, Stefano

2011-10-15T23:59:59.000Z

380

UPDATE February 2012 - The Food Crises: Predictive validation of a quantitative model of food prices including speculators and ethanol conversion  

E-Print Network [OSTI]

Increases in global food prices have led to widespread hunger and social unrest---and an imperative to understand their causes. In a previous paper published in September 2011, we constructed for the first time a dynamic model that quantitatively agreed with food prices. Specifically, the model fit the FAO Food Price Index time series from January 2004 to March 2011, inclusive. The results showed that the dominant causes of price increases during this period were investor speculation and ethanol conversion. The model included investor trend following as well as shifting between commodities, equities and bonds to take advantage of increased expected returns. Here, we extend the food prices model to January 2012, without modifying the model but simply continuing its dynamics. The agreement is still precise, validating both the descriptive and predictive abilities of the analysis. Policy actions are needed to avoid a third speculative bubble that would cause prices to rise above recent peaks by the end of 2012.

Lagi, Marco; Bertrand, Karla Z; Bar-Yam, Yaneer

2012-01-01T23:59:59.000Z

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


381

New measurements and quantitative analysis of electron backscattering in the energy range of neutron {beta}-decay  

SciTech Connect (OSTI)

We report on the first detailed measurements of electron backscattering from plastic scintillator targets, extending our previous work on beryllium and silicon targets. The scintillator experiment posed several additional experimental challenges associated with charging of the scintillator target, and those challenges are addressed in detail. In addition, we quantitatively compare the energy and angular distributions of this data, and our previous data, with electron transport simulations based on the GEANT4 and PENELOPE Monte Carlo simulation codes. The PENELOPE simulation is found globally to give a superior description of the data. Such information is crucial for a broad array of weak-interaction physics experiments, where electron backscattering can give rise to the dominant detector-related systematic uncertainty.

Martin, J.W. [W.K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125 (United States); Physics Department, University of Winnipeg, Winnipeg, Manitoba, R3B 2E9 (Canada); Yuan, J.; Betancourt, M.J.; Filippone, B.W.; Ito, T.M.; Plaster, B. [W.K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125 (United States); Hoedl, S.A. [CENPA, University of Washington, Seattle, Washington 98195 (United States); Young, A.R. [North Carolina State University, Raleigh, North Carolina 27695 (United States)

2006-01-15T23:59:59.000Z

382

In-Depth Quantitative Proteomic Analysis of de Novo Protein Synthesis Induced by Brain-Derived Neurotrophic Factor  

Science Journals Connector (OSTI)

In-Depth Quantitative Proteomic Analysis of de Novo Protein Synthesis Induced by Brain-Derived Neurotrophic Factor ... When we applied the BONLAC approach to screen for brain-derived neurotrophic factor (BDNF)-induced protein synthesis, 53 proteins were found to be significantly changed 2 h after BDNF stimulation. ... In this study, we performed a comprehensive characterization of the BONLAC approach in terms of its ability to identify and quantify the nascent proteome that is synthesized within a relatively short time period, and we used this approach to screen for brain-derived neurotrophic factor (BDNF)-induced proteins in HEK cells with stable expression of tropomyosin-related kinase B (TrkB). ...

Guoan Zhang; Heather Bowling; Nancy Hom; Kent Kirshenbaum; Eric Klann; Moses V. Chao; Thomas A. Neubert

2014-10-01T23:59:59.000Z

383

Rapid Quantitation of Ascorbic and Folic Acids in SRM 3280 Multivitamin/Multielement Tablets using Flow-Injection Tandem Mass Spectrometry  

SciTech Connect (OSTI)

RATIONALE: Ascorbic acid (AA) and folic acid (FA) are water-soluble vitamins and are usually fortified in food and dietary supplements. For the safety of human health, proper intake of these vitamins is recommended. Improvement in the analysis time required for the quantitative determination of these vitamins in food and nutritional formulations is desired. METHODS: A simple and fast (~5 min) in-tube sample preparation was performed, independently for FA and AA, by mixing extraction solvent with a powdered sample aliquot followed by agitation, centrifugation, and filtration to recover an extract for analysis. Quantitative detection was achieved by flow-injection (1 L injection volume) electrospray ionization tandem mass spectrometry (ESI-MS/MS) in negative ion mode using the method of standard addition. RESULTS: Method of standard addition was employed for the quantitative estimation of each vitamin in a sample extract. At least 2 spiked and 1 non-spiked sample extract were injected in triplicate for each quantitative analysis. Given an injection-to-injection interval of approximately 2 min, about 18 min was required to complete the quantitative estimation of each vitamin. The concentration values obtained for the respective vitamins in the standard reference material (SRM) 3280 using this approach were within the statistical range of the certified values provided in the NIST Certificate of Analysis. The estimated limit of detections of FA and AA were 13 and 5.9 ng/g, respectively. CONCLUSIONS: Flow-injection ESI-MS/MS was successfully applied for the rapid quantitation of FA and AA in SRM 3280 multivitamin/multielement tablets.

Bhandari, Deepak [ORNL] [ORNL; Kertesz, Vilmos [ORNL] [ORNL; Van Berkel, Gary J [ORNL] [ORNL

2013-01-01T23:59:59.000Z

384

Volumes of certain loci of polynomials and their applicatoins  

E-Print Network [OSTI]

To prove that a polynomial is nonnegative on Rn, one can try to show that it is a sum of squares of polynomials (SOS). The latter problem is now known to be reducible to a semi-definite programming (SDP) computation that is much faster than...

Sethuraman, Swaminathan

2010-01-16T23:59:59.000Z

385

Heterozygosity of H–2 loci in wild mice  

Science Journals Connector (OSTI)

... , in the cytotoxic test against a panel of operationally monospecific antisera. Positive reactions for private and semiprivate antigens listed under Phenotype were found.

William R. Duncan; Edward K. Wakeland; Jan Klein

1979-10-18T23:59:59.000Z

386

TECHNICAL NOTE Isolation and characterization of microsatellite loci in two  

E-Print Network [OSTI]

(SFE). Non-native jellyfish and other hydroids can have severe effects on the ecosystems they invade directly affect fish populations by devouring massive quantities of eggs and larvae and decreasing fish et al. 2005). The brackish water hydrozomedusae studied herein are novel predators in the SFE and

May, Bernie

387

Quantitative cone-beam CT imaging in radiation therapy using planning CT as a prior: First patient studies  

SciTech Connect (OSTI)

Purpose: Quantitative cone-beam CT (CBCT) imaging is on increasing demand for high-performance image guided radiation therapy (IGRT). However, the current CBCT has poor image qualities mainly due to scatter contamination. Its current clinical application is therefore limited to patient setup based on only bony structures. To improve CBCT imaging for quantitative use, we recently proposed a correction method using planning CT (pCT) as the prior knowledge. Promising phantom results have been obtained on a tabletop CBCT system, using a correction scheme with rigid registration and without iterations. More challenges arise in clinical implementations of our method, especially because patients have large organ deformation in different scans. In this paper, we propose an improved framework to extend our method from bench to bedside by including several new components. Methods: The basic principle of our correction algorithm is to estimate the primary signals of CBCT projections via forward projection on the pCT image, and then to obtain the low-frequency errors in CBCT raw projections by subtracting the estimated primary signals and low-pass filtering. We improve the algorithm by using deformable registration to minimize the geometry difference between the pCT and the CBCT images. Since the registration performance relies on the accuracy of the CBCT image, we design an optional iterative scheme to update the CBCT image used in the registration. Large correction errors result from the mismatched objects in the pCT and the CBCT scans. Another optional step of gas pocket and couch matching is added into the framework to reduce these effects. Results: The proposed method is evaluated on four prostate patients, of which two cases are presented in detail to investigate the method performance for a large variety of patient geometry in clinical practice. The first patient has small anatomical changes from the planning to the treatment room. Our algorithm works well even without the optional iterations and the gas pocket and couch matching. The image correction on the second patient is more challenging due to the effects of gas pockets and attenuating couch. The improved framework with all new components is used to fully evaluate the correction performance. The enhanced image quality has been evaluated using mean CT number and spatial nonuniformity (SNU) error as well as contrast improvement factor. If the pCT image is considered as the ground truth, on the four patients, the overall mean CT number error is reduced from over 300 HU to below 16 HU in the selected regions of interest (ROIs), and the SNU error is suppressed from over 18% to below 2%. The average soft-tissue contrast is improved by an average factor of 2.6. Conclusions: We further improve our pCT-based CBCT correction algorithm for clinical use. Superior correction performance has been demonstrated on four patient studies. By providing quantitative CBCT images, our approach significantly increases the accuracy of advanced CBCT-based clinical applications for IGRT.

Niu Tianye; Al-Basheer, Ahmad; Zhu Lei [Nuclear and Radiological Engineering and Medical Physics Programs, George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332 (United States); Georgia Radiation Therapy Center, Department of Radiology, Georgia Health Sciences University, Augusta, Georgia 30912 (United States); Nuclear and Radiological Engineering and Medical Physics Programs, George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332 (United States)

2012-04-15T23:59:59.000Z

388

Quantitative comparison of processes of oil-and water-based mud-filtrate invasion and corresponding effects on borehole resistivity measurements  

E-Print Network [OSTI]

for hydrocarbon exploration and production, drilling fluids sustain a pressure higher than that of formationQuantitative comparison of processes of oil- and water-based mud-filtrate invasion-filtrate invasion on borehole resistivity measurements. We simulate the process of mud-fil- trate invasion

Torres-VerdĂ­n, Carlos

389

Quantitative 3-D Elemental Mapping by LA-ICP-MS of a Basaltic Clast from the Hanford 300 Area, Washington, USA  

E-Print Network [OSTI]

Quantitative 3-D Elemental Mapping by LA-ICP-MS of a Basaltic Clast from the Hanford 300 Area collected from the Hanford 300 Area in south-central Washington State, United States. A calibration method and riparian quality in many locations, most notably at the Hanford, Savannah River, Oak Ridge, and Nevada Test

Hu, Qinhong "Max"

390

Quantitative analysis of ultrasound data in assessment of muscle layer thickness of quadriceps muscle in young subject pre and post isometric contraction  

Science Journals Connector (OSTI)

Muscle imaging techniques such as ultrasonography (US), computer tomography (CT) and magnetic resonance imaging (MRI) facilitate the muscle morphology assessment. We aimed to determine the normal (non-injured) quadriceps muscle response to an exercise ... Keywords: isometrics, muscle bundles, muscle morphology, quadriceps, quantitative analysis, ultrasound

Danoiu Suzana; Traistaru Rodica; Badea Petrica; Danoiu Mircea

2008-12-01T23:59:59.000Z

391

Qupe—a Rich Internet Application to take a step forward in the analysis of mass spectrometry-based quantitative proteomics experiments  

Science Journals Connector (OSTI)

......approaches utilizing a well-defined API. The one-sample t-test, the analysis of variance and the non-parametric Kruskal-Wallis test have been adapted to quantitative proteomics data. To account for the multiple testing situation and to give......

Stefan P. Albaum; Heiko Neuweger; Benjamin Fränzel; Sita Lange; Dominik Mertens; Christian Trötschel; Dirk Wolters; Jörn Kalinowski; Tim W. Nattkemper; Alexander Goesmann

2009-12-01T23:59:59.000Z

392

A Two-Stage Multiplex Method for Quantitative Analysis of Botulinum Neurotoxins Type A, B, E, and F by MALDI-TOF Mass Spectrometry  

Science Journals Connector (OSTI)

Dongxia Wang †, Jakub Baudys †, Joan Krilich ‡, Theresa J. Smith §, John R. Barr †, and Suzanne R. Kalb *† ... 4Determination of the Changes of Toxin Activities in Culture Media under Different Growing Temperatures ... can provide precise quantitation of high-to-medium abundance peptide biomarkers over a 100-fold dynamic range when ratioed to same-sequence labeled internal stds. ...

Dongxia Wang; Jakub Baudys; Joan Krilich; Theresa J. Smith; John R. Barr; Suzanne R. Kalb

2014-10-06T23:59:59.000Z

393

Grasland C., 2009, Spatial Analysis of Social Facts, to be published in Bavaud F. & Mager C. Handbook of Quantitative Geography, University of Lausanne SPATIAL ANALYSIS OF SOCIAL FACTS  

E-Print Network [OSTI]

City [2,72,19] does not mean that physical distance has to be excluded from spatial interaction models. Handbook of Quantitative Geography, University of Lausanne 1 SPATIAL ANALYSIS OF SOCIAL FACTS A tentative where distance in general - and physical distance in particular - are less and less important

Paris-Sud XI, Université de

394

Development and Validation of an RP-HPLC Method to Quantitate Acyclovir in Cross-Linked Chitosan Microspheres Produced by Spray Drying  

Science Journals Connector (OSTI)

......ACV) in cross-linked chitosan microspheres produced by spray...coefficient of 0.9999. The chitosan and the tripolyphosphate in...quantitate ACV in cross-linked chitosan microspheres. Introduction...activity. It is a highly potent inhibitor of herpes simplex virus......

Hellen Karine Stulzer; Monika Piazzon Tagliari; Fábio S. Murakami; Marcos A.S. Silva; Mauro C.M. Laranjeira

2008-07-01T23:59:59.000Z

395

Cai, Powell, Yue, Narayanan, Wang, Tate, Renzi, Ercan, Fontes & Gruner. Quantitative analysis of highly transient fuel sprays by time-resolved x-radiography. Appl. Phys. Lett.  

E-Print Network [OSTI]

engines. For example, recently de- veloped gasoline direct injection GDI , which injects fuel see also EPAPS Document #1 for a comparison of visible light shadow graph and x-radiograph of a GDI orientations. In this letter, we report the direct imaging and the quantitative analysis of the GDI hollow

Gruner, Sol M.

396

A quantitative conduction model for a low-resistance nonalloyed ohmic contact structure utilizing low-temperature-grown GaAs  

E-Print Network [OSTI]

A quantitative conduction model for a low-resistance nonalloyed ohmic contact structure utilizing properties of this material. The specific contact resistance is then calculated using an analytic expression for tunneling conduction through an equivalent uniformly doped Schottky barrier. The model has been used to fit

Woodall, Jerry M.

397

Quantitative risk analysis of fire and explosion on the top-side LNG-liquefaction process of LNG-FPSO  

Science Journals Connector (OSTI)

Abstract Since the massive use and production of fuel oil and natural gas, the excavating locations of buried energy-carrying material are moving further away from onshore, eventually requiring floating production systems like floating production, storage and offloading (FPSO). Among those platforms, LNG-FPSO will play a leading role to satisfy the global demands for the natural gas in near future; the LNG-FPSO system is designed to deal with all the LNG processing activities, near the gas field. However, even a single disaster on an offshore plant would put the whole business into danger. In this research, the risk of fire and explosion in the LNG-FPSO is assessed by quantitative risk analysis, including frequency and consequence analyses, focusing on the LNG liquefaction process (DMR cycle). The consequence analysis is modeled by using a popular analysis tool PHAST. To assess the risk of this system, 5 release model scenarios are set for the LNG and refrigerant leakages from valves, selected as the most probable scenarios causing fire and explosion. From the results, it is found that the introduction of additional protection methods to reduce the effect of fire and explosion under ALARP criteria is not required, and two cases of the selection of independent protection layers are recommended to meet the SIL level of failure rate for safer design and operation in the offshore environment.

Seungkyu Dan; Chang Jun Lee; Jeongpil Park; Dongil Shin; En Sup Yoon

2014-01-01T23:59:59.000Z

398

Quantitative determination of energy enhanced interlayer transport in pulsed laser deposition of SrTiO3  

Science Journals Connector (OSTI)

We show that the analysis of single-shot surface x-ray diffraction transients in terms of time-dependent coverages allows quantitative determination of interlayer transport in pulsed-laser deposition of SrTiO3. The fast interlayer transport during and immediately after the arrival of the laser plume and before crystallization represents the dominant mechanism for redistribution of the deposited material that is completed on a ?s-range or faster time scale. Following crystallization interlayer transport is more than four orders of magnitude slower because it is driven only by sluggish thermally activated processes, which represent a small fraction of total interlayer transport that decreases with increasing laser repetition rate. The analysis of growth kinetics shows that it is fast interlayer transport driven by hyperthermal energy species and not thermal annealing that governs layer completion that determines the growth mode and the formation of atomically sharp interfaces in pulsed-laser deposition of epitaxial oxide films and similar energy-enhanced growth processes.

Gyula Eres; J. Z. Tischler; C. M. Rouleau; P. Zschack; H. M. Christen; B. C. Larson

2011-11-28T23:59:59.000Z

399

TRACKING CORONAL FEATURES FROM THE LOW CORONA TO EARTH: A QUANTITATIVE ANALYSIS OF THE 2008 DECEMBER 12 CORONAL MASS EJECTION  

SciTech Connect (OSTI)

We have tracked a slow magnetic cloud associated coronal mass ejection (CME) continuously from its origin as a flux rope structure in the low solar corona over a four-day passage to impact with spacecraft located near Earth. Combining measurements from the STEREO, ACE, and Wind space missions, we are able to follow major elements with enough specificity to relate pre-CME coronal structure in the low corona to the corresponding elements seen in the near-Earth in situ data. Combining extreme ultraviolet imaging, quantitative Thomson scattering data throughout the flight of the CME, and ''ground-truth'' in situ measurements, we: (1) identify the plasma observed by ACE and Wind with specific features in the solar corona (a segment of a long flux rope); (2) determine the onset mechanism of the CME (destabilization of a filament channel following flare reconnection, coupled with the mass draining instability) and demonstrate that it is consistent with the in situ measurements; (3) identify the origin of different layers of the sheath material around the central magnetic cloud (closed field lifted from the base of the corona, closed field entrained during passage through the corona, and solar wind entrained by the front of the CME); (4) measure mass accretion of the system via snowplow effects in the solar wind as the CME crossed the solar system; and (5) quantify the kinetic energy budget of the system in interplanetary space, and determine that it is consistent with no long-term driving force on the CME.

DeForest, C. E.; Howard, T. A. [Southwest Research Institute, 1050 Walnut Street, Suite 300, Boulder, CO 80302 (United States); McComas, D. J., E-mail: deforest@boulder.swri.edu [Southwest Research Institute, 6220 Culebra Rd., San Antonio, TX 78249 (United States)

2013-05-20T23:59:59.000Z

400

Calibration of laser ablation inductively coupled plasma mass spectrometry using dried solution aerosols for the quantitative analysis of solid samples  

SciTech Connect (OSTI)

Inductively coupled plasma mass spectrometry (ICP-MS) has become the method of choice for elemental and isotopic analysis. Several factors contribute to its success. Modern instruments are capable of routine analysis at part per trillion levels with relative detection limits in part per quadrillion levels. Sensitivities in these instruments can be as high as 200 million counts per second per part per million with linear dynamic ranges up to eight orders of magnitude. With standards for only a few elements, rapid semiquantitative analysis of over 70 elements in an individual sample can be performed. Less than 20 years after its inception ICP-MS has shown to be applicable to several areas of science. These include geochemistry, the nuclear industry, environmental chemistry, clinical chemistry, the semiconductor industry, and forensic chemistry. In this introduction, the general attributes of ICP-MS will be discussed in terms of instrumentation and sample introduction. The advantages and disadvantages of current systems are presented. A detailed description of one method of sample introduction, laser ablation, is given. The paper also gives conclusions and suggestions for future work. Chapter 2, Quantitative analysis of solids by laser ablation inductively coupled plasma mass spectrometry using dried solution aerosols for calibration, has been removed for separate processing.

Leach, J.

1999-02-12T23:59:59.000Z

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


401

D-Factor: A Quantitative Model of Application Slow-Down in Multi-Resource Shared Systems  

SciTech Connect (OSTI)

Scheduling multiple jobs onto a platform enhances system utilization by sharing resources. The benefits from higher resource utilization include reduced cost to construct, operate, and maintain a system, which often include energy consumption. Maximizing these benefits comes at a price - resource contention among jobs increases job completion time. In this paper, we analyze slow-downs of jobs due to contention for multiple resources in a system; referred to as dilation factor. We observe that multiple-resource contention creates non-linear dilation factors of jobs. From this observation, we establish a general quantitative model for dilation factors of jobs in multi-resource systems. A job is characterized by a vector-valued loading statistics and dilation factors of a job set are given by a quadratic function of their loading vectors. We demonstrate how to systematically characterize a job, maintain the data structure to calculate the dilation factor (loading matrix), and calculate the dilation factor of each job. We validate the accuracy of the model with multiple processes running on a native Linux server, virtualized servers, and with multiple MapReduce workloads co-scheduled in a cluster. Evaluation with measured data shows that the D-factor model has an error margin of less than 16%. We also show that the model can be integrated with an existing on-line scheduler to minimize the makespan of workloads.

Lim, Seung-Hwan [ORNL] [ORNL; Huh, Jae-Seok [ORNL] [ORNL; Kim, Youngjae [ORNL] [ORNL; Shipman, Galen M [ORNL] [ORNL; Das, Chita [Pennsylvania State University, University Park, PA] [Pennsylvania State University, University Park, PA

2012-01-01T23:59:59.000Z

402

Quantitative luminescence imaging system  

DOE Patents [OSTI]

The QLIS images and quantifies low-level chemiluminescent reactions in an electromagnetic field. It is capable of real time nonperturbing measurement and simultaneous recording of many biochemical and chemical reactions such as luminescent immunoassays or enzyme assays. The system comprises image transfer optics, a low-light level digitizing camera with image intensifying microchannel plates, an image process or, and a control computer. The image transfer optics may be a fiber image guide with a bend, or a microscope, to take the light outside of the RF field. Output of the camera is transformed into a localized rate of cumulative digitalized data or enhanced video display or hard-copy images. The system may be used as a luminescent microdosimetry device for radiofrequency or microwave radiation, as a thermal dosimeter, or in the dosimetry of ultra-sound (sonoluminescence) or ionizing radiation. It provides a near-real-time system capable of measuring the extremely low light levels from luminescent reactions in electromagnetic fields in the areas of chemiluminescence assays and thermal microdosimetry, and is capable of near-real-time imaging of the sample to allow spatial distribution analysis of the reaction. It can be used to instrument three distinctly different irradiation configurations, comprising (1) RF waveguide irradiation of a small Petri-dish-shaped sample cell, (2) RF irradiation of samples in a microscope for the microscopie imaging and measurement, and (3) RF irradiation of small to human body-sized samples in an anechoic chamber.

Erwin, David N. (San Antonio, TX); Kiel, Johnathan L. (San Antonio, TX); Batishko, Charles R. (West Richland, WA); Stahl, Kurt A. (Richland, WA)

1990-01-01T23:59:59.000Z

403

Quantitative luminescence imaging system  

DOE Patents [OSTI]

The QLIS images and quantifies low-level chemiluminescent reactions in an electromagnetic field. It is capable of real time nonperturbing measurement and simultaneous recording of many biochemical and chemical reactions such as luminescent immunoassays or enzyme assays. The system comprises image transfer optics, a low-light level digitizing camera with image intensifying microchannel plates, an image process or, and a control computer. The image transfer optics may be a fiber image guide with a bend, or a microscope, to take the light outside of the RF field. Output of the camera is transformed into a localized rate of cumulative digitalized data or enhanced video display or hard-copy images. The system may be used as a luminescent microdosimetry device for radiofrequency or microwave radiation, as a thermal dosimeter, or in the dosimetry of ultra-sound (sonoluminescence) or ionizing radiation. It provides a near-real-time system capable of measuring the extremely low light levels from luminescent reactions in electromagnetic fields in the areas of chemiluminescence assays and thermal microdosimetry, and is capable of near-real-time imaging of the sample to allow spatial distribution analysis of the reaction. It can be used to instrument three distinctly different irradiation configurations, comprising (1) RF waveguide irradiation of a small Petri-dish-shaped sample cell, (2) RF irradiation of samples in a microscope for the microscopic imaging and measurement, and (3) RF irradiation of small to human body-sized samples in an anechoic chamber. 22 figs.

Erwin, D.N.; Kiel, J.L.; Batishko, C.R.; Stahl, K.A.

1990-08-14T23:59:59.000Z

404

Leadership In Quantitative Excellence  

E-Print Network [OSTI]

:10-10:50 Robert Frey Director, Stony Brook University "Modeling Arbitrage Strategies" 10:50-11:30 Julia Belford Keim John B. Neff Professor of Finance, Wharton School of the University of Pennsylvania "Trading

Frey, Robert J.

405

A quantitative method to analyze the quality of EIA information in wind energy development and avian/bat assessments  

Science Journals Connector (OSTI)

The environmental impact assessment (EIA) has been a tool for decision makers since the enactment of the National Environmental Policy Act (NEPA). Since that time, few analyses have been performed to verify the quality of information and content within EIAs. High quality information within assessments is vital in order for decision makers, stake holders, and the public to understand the potential impact of proposed actions on the ecosystem and wildlife species. Low quality information has been a major cause for litigation and economic loss. Since 1999, wind energy development has seen an exponential growth with unknown levels of impact on wildlife species, in particular bird and bat species. The purpose of this article is to: (1) develop, validate, and apply a quantitative index to review avian/bat assessment quality for wind energy EIAs; and (2) assess the trends and status of avian/bat assessment quality in a sample of wind energy EIAs. This research presents the development and testing of the Avian and Bat Assessment Quality Index (ABAQI), a new approach to quantify information quality of ecological assessments within wind energy development \\{EIAs\\} in relation to avian and bat species based on review areas and factors derived from 23 state wind/wildlife siting guidance documents. The ABAQI was tested through a review of 49 publicly available EIA documents and validated by identifying high variation in avian and bat assessments quality for wind energy developments. Of all the reviewed EIAs, 66% failed to provide high levels of preconstruction avian and bat survey information, compared to recommended factors from state guidelines. This suggests the need for greater consistency from recommended guidelines by state, and mandatory compliance by EIA preparers to avoid possible habitat and species loss, wind energy development shut down, and future lawsuits.

Tony Chang; Erik Nielsen; William Auberle; Frederic I. Solop

2013-01-01T23:59:59.000Z

406

Nondestructive 3D confocal laser imaging with deconvolution of seven whole stardust tracks with complementary XRF and quantitative analysis  

SciTech Connect (OSTI)

We present a nondestructive 3D system for analysis of whole Stardust tracks, using a combination of Laser Confocal Scanning Microscopy and synchrotron XRF. 3D deconvolution is used for optical corrections, and results of quantitative analyses of several tracks are presented. The Stardust mission to comet Wild 2 trapped many cometary and ISM particles in aerogel, leaving behind 'tracks' of melted silica aerogel on both sides of the collector. Collected particles and their tracks range in size from submicron to millimeter scale. Interstellar dust collected on the obverse of the aerogel collector is thought to have an average track length of {approx}15 {micro}m. It has been our goal to perform a total non-destructive 3D textural and XRF chemical analysis on both types of tracks. To that end, we use a combination of Laser Confocal Scanning Microscopy (LCSM) and X Ray Florescence (XRF) spectrometry. Utilized properly, the combination of 3D optical data and chemical data provides total nondestructive characterization of full tracks, prior to flattening or other destructive analysis methods. Our LCSM techniques allow imaging at 0.075 {micro}m/pixel, without the use of oil-based lenses. A full textural analysis on track No.82 is presented here as well as analysis of 6 additional tracks contained within 3 keystones (No.128, No.129 and No.140). We present a method of removing the axial distortion inherent in LCSM images, by means of a computational 3D Deconvolution algorithm, and present some preliminary experiments with computed point spread functions. The combination of 3D LCSM data and XRF data provides invaluable information, while preserving the integrity of the samples for further analysis. It is imperative that these samples, the first extraterrestrial solids returned since the Apollo era, be fully mapped nondestructively in 3D, to preserve the maximum amount of information prior to other, destructive analysis.

Greenberg, M.; Ebel, D.S. (AMNH)

2009-03-19T23:59:59.000Z

407

Characterization and analysis methods for the examination of the heterogeneous solid oxide fuel cell electrode microstructure: Part 2. Quantitative measurement of the microstructure and contributions to transport losses  

SciTech Connect (OSTI)

Advanced characterization and analysis of multifunctional materials, such as the materials found in heterogeneous solid oxide fuel cell (SOFC) electrode architectures, can help to provide a qualitative and quantitative understanding of how these structures respond to different manufacturing and operating practices. Dense, opaque materials, which have large X-ray mass absorption coefficients and features on sub-micrometer length scales, can make characterization difficult. Advances in tomographic X-ray imaging can permit this level of detailed characterization, and complement stereographic scanning electron microscope measurements that have also been reported. In this second part of a two-part study, details regarding quantitative characterization methods that have been used to examine the SOFC anode microstructure are reported. The detailed formulation and validation of a phase size distributions for the three constitutive phases, as well as resistive loss microstructure-induced resistive loss distributions in the nickel (Ni) and yttria-stabilized zirconia (YSZ) phases are provided in this section.

Grew, Kyle N.; Peracchio, Aldo A.; Chiu, W. K. S.

2010-01-01T23:59:59.000Z

408

An integrated quantitative hazard analysis method for natural gas jet release from underground gas storage caverns in salt rock. I: Models and validation  

Science Journals Connector (OSTI)

It is very important and necessary to perform quantitative hazard analysis for possible accidental leakage from an underground gas storage cavern in salt rock. An integrated quantitative hazard analysis method for natural gas jet release from salt caverns is presented in this paper, which was constituted by a revised model for gas leakage rate calculation, a consequence analysis and a model of probability assessment for harm. The presented method was validated by comparing the analytical results with the data collected from the real accidents (including the leakage, jet fire, fireball and vapor cloud explosion). It is indicated that the proposed method was more accurate than the TNT equivalence method for vapor cloud explosion and gave more reasonable results when applied to the consequence analysis for the thermal radiation from jet fire and fireball.

Shigang Yang; Qin Fang; Yadong Zhang; Hao Wu; Linjian Ma

2013-01-01T23:59:59.000Z

409

An integrated quantitative hazard analysis method for natural gas jet release from underground gas storage caverns in salt rock. II: A sample computation and parametric study  

Science Journals Connector (OSTI)

It is of great importance and necessity to perform quantitative hazard analysis on possible accidental leakage from gas storage cavern in salt rock. To improve the working safety in the cavern, an integrated quantitative method for hazard analysis on natural gas jet release from caverns in salt rock was presented. In this paper, a sample of gas storage cavern in salt rock was analyzed to demonstrate the presented method. Furthermore, the factors that influence the hazard range of leakage accidents from gas storage cavern in salt rock were discussed. The results indicated that the release rate diminishes with increased pipe length due to friction in steady-state. Meanwhile, the hazard distance from production casing also diminishes with increased pipe length. As the pipeline gets as long as several kilometers, the predicted hazard distance will be constant. However, the hazard distance increases with increasing the operating pressure and pipeline diameter.

Shigang Yang; Qin Fang; Hao Wu; Yadong Zhang; Hengbo Xiang

2013-01-01T23:59:59.000Z

410

Simultaneous Quantitation of 2-Acetyl-4-tetrahydroxybutylimidazole, 2- and 4-Methylimidazoles, and 5-Hydroxymethylfurfural in Beverages by Ultrahigh-Performance Liquid Chromatography–Tandem Mass Spectrometry  

Science Journals Connector (OSTI)

Simultaneous Quantitation of 2-Acetyl-4-tetrahydroxybutylimidazole, 2- and 4-Methylimidazoles, and 5-Hydroxymethylfurfural in Beverages by Ultrahigh-Performance Liquid Chromatography–Tandem Mass Spectrometry ... An ultrahigh-performance liquid chromatography (UHPLC) tandem mass spectrometric (MS/MS) method was developed for the simultaneous quantification of 2-acetyl-4-tetrahydroxybutylimidazole (THI), 2- and 4-methylimidazoles (2-MI and 4-MI), and 5-hydroxymethylfurfural (HMF) in beverage samples. ... 2-acetyl-4-tetrahydroxybutylimidazole; methylimidazole; 5-hydroxymethylfurfural; carcinogen; beverage; UHPLC; mass spectrometry ...

Jinyuan Wang; William C. Schnute

2011-12-30T23:59:59.000Z

411

Implications of CT noise and artifacts for quantitative {sup 99m}Tc SPECT/CT imaging  

SciTech Connect (OSTI)

Purpose: This paper evaluates the effects of computed tomography (CT) image noise and artifacts on quantitative single-photon emission computed-tomography (SPECT) imaging, with the aim of establishing an appropriate range of CT acquisition parameters for low-dose protocols with respect to accurate SPECT attenuation correction (AC). Methods: SPECT images of two geometric and one anthropomorphic phantom were reconstructed iteratively using CT scans acquired at a range of dose levels (CTDI{sub vol} = 0.4 to 46 mGy). Resultant SPECT image quality was evaluated by comparing mean signal, background noise, and artifacts to SPECT images reconstructed using the highest dose CT for AC. Noise injection was performed on linear-attenuation (?) maps to determine the CT noise threshold for accurate AC. Results: High levels of CT noise (? ? 200–400 HU) resulted in low ?-maps noise (? ? 1%–3%). Noise levels greater than ?10% in 140 keV ?-maps were required to produce visibly perceptible increases of ?15% in {sup 99m}Tc SPECT images. These noise levels would be achieved at low CT dose levels (CTDI{sub vol} = 4 ?Gy) that are over 2 orders of magnitude lower than the minimum dose for diagnostic CT scanners. CT noise could also lower (bias) the expected ? values. The relative error in reconstructed SPECT signal trended linearly with the relative shift in ?. SPECT signal was, on average, underestimated in regions corresponding with beam-hardening artifacts in CT images. Any process that has the potential to change the CT number of a region by ?100 HU (e.g., misregistration between CT images and SPECT images due to motion, the presence of contrast in CT images) could introduce errors in ?{sub 140} {sub keV} on the order of 10%, that in turn, could introduce errors on the order of ?10% into the reconstructed {sup 99m}Tc SPECT image. Conclusions: The impact of CT noise on SPECT noise was demonstrated to be negligible for clinically achievable CT parameters. Because CT dose levels that affect SPECT quantification is low (CTDI{sub vol} ? 4 ?Gy), the low dose limit for the CT exam as part of SPECT/CT will be guided by CT image quality requirements for anatomical localization and artifact reduction. A CT technique with higher kVp in combination with lower mAs is recommended when low-dose CT images are used for AC to minimize beam-hardening artifacts.

Hulme, K. W.; Kappadath, S. C., E-mail: skappadath@mdanderson.org [Department of Imaging Physics, The University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030 and The University of Texas Graduate School of Biomedical Sciences, Houston, Texas 77030 (United States)

2014-04-15T23:59:59.000Z

412

Imaging and quantitative data acquisition of biological cell walls with Atomic Force Microscopy and Scanning Acoustic Microscopy  

SciTech Connect (OSTI)

This chapter demonstrates the feasibility of Atomic Force Microscopy (AFM) and High Frequency Scanning Acoustic Microscopy (HF-SAM) as tools to characterize biological tissues. Both the AFM and the SAM have shown to provide imaging (with different resolution) and quantitative elasticity measuring abilities. Plant cell walls with minimal disturbance and under conditions of their native state have been examined with these two kinds of microscopy. After descriptions of both the SAM and AFM, their special features and the typical sample preparation is discussed. The sample preparation is focused here on epidermal peels of onion scales and celery epidermis cells which were sectioned for the AFM to visualize the inner surface (closest to the plasma membrane) of the outer epidermal wall. The nm-wide cellulose microfibrils orientation and multilayer structure were clearly observed. The microfibril orientation and alignment tend to be more organized in older scales compared with younger scales. The onion epidermis cell wall was also used as a test analog to study cell wall elasticity by the AFM nanoindentation and the SAM V(z) feature. The novelty in this work was to demonstrate the capability of these two techniques to analyze isolated, single layered plant cell walls in their natural state. AFM nanoindentation was also used to probe the effects of Ethylenediaminetetraacetic acid (EDTA), and calcium ion treatment to modify pectin networks in cell walls. The results suggest a significant modulus increase in the calcium ion treatment and a slight decrease in EDTA treatment. To complement the AFM measurements, the HF-SAM was used to obtain the V(z) signatures of the onion epidermis. These measurements were focused on documenting the effect of pectinase enzyme treatment. The results indicate a significant change in the V(z) signature curves with time into the enzyme treatment. Thus AFM and HF-SAM open the door to a systematic nondestructive structure and mechanical property study of complex biological cell walls. A unique feature of this approach is that both microscopes allow the biological samples to be examined in their natural fluid (water) environment.

Tittmann, B. R. [Penn State; Xi, X. [Penn State

2014-09-01T23:59:59.000Z

413

Molecular mechanisms controlling complex traits in yeast  

E-Print Network [OSTI]

A fundamental goal in biology is to understand how the information stored in DNA results in a cellular function. However, it is insufficient to study one variant of a particular DNA sequence because most people do not share ...

Chin, Brian L. (Brian Leland)

2012-01-01T23:59:59.000Z

414

An elusive species with many different traits.  

E-Print Network [OSTI]

-Pase detection of HSOH: Synthesis by Flash Vacuum Pyrolysis of ditert-butyl-sulfoxide and rotational- torsional

Giesen, Thomas

415

Mapping the Epigenetic Basis of Complex Traits  

E-Print Network [OSTI]

RechercheMédicale(INSERM) U 1024, Paris F-75005, France. 2 Groningen Bioinformatics Centre, GBB, University of Groningen, 9747 AG Groningen, Netherlands. 3 Commissariat à l'Energie Atomique (CEA), Institut de Génomique (IG of Groningen, UMCG, A. Deusinglaan 1, NL-9713 AV Groningen, Netherlands. §Present address: Wellcome Trust

Napp, Nils

416

Textures in Strip-Cast Aluminum Alloys: Their On-Line Monitoring and Quantitative Effects on Formability. Final Technical Report  

SciTech Connect (OSTI)

Aluminum sheets produced by continuous casting (CC) provide energy and economic savings of at least 25 and 14 percent, respectively, over sheets made from conventional direct chill (DC) ingot casting and rolling. As a result of the much simpler production route in continuous casting, however, the formability of CC aluminum alloys is often somewhat inferior to that of their DC counterparts. The mechanical properties of CC alloys can be improved by controlling their microstructure through optimal thermomechanical processing. Suitable annealing is an important means to improve the formability of CC aluminum alloy sheets. Recrystallization of deformed grains occurs during annealing, and it changes the crystallographic texture of the aluminum sheet. Laboratory tests in this project showed that this texture change can be detected by either laser-ultrasound resonance spectroscopy or resonance EMAT (electromagnetic acoustic transducer) spectroscopy, and that monitoring this change allows the degree of recrystallization or the ''recrystallized fraction'' in an annealed sheet to be ascertained. Through a plant trial conducted in May 2002, this project further demonstrated that it is feasible to monitor the recrystallized state of a continuous-cast aluminum sheet in-situ on the production line by using a laser-ultrasound sensor. When used in conjunction with inline annealing, inline monitoring of the recrystallized fraction by laser-ultrasound resonance spectroscopy offers the possibility of feed-back control that helps optimize processing parameters (e.g., annealing temperature), detect production anomalies, ensure product quality, and further reduce production costs of continuous-cast aluminum alloys. Crystallographic texture strongly affects the mechanical anisotropy/formability of metallic sheets. Clarification of the quantitative relationship between texture and anisotropy/formability of an aluminum alloy will render monitoring and control of its texture during the sheet production process even more meaningful. The present project included a study to determine how the anisotropic plastic behavior of a continuous-cast AA 5754 aluminum alloy depends on quantifiable texture coefficients. Formulae which show explicitly the effects of texture on the directional dependence of the q-value (a formability parameter) and of the uniaxial flow stress, respectively, were derived. Measurements made on a batch of as-received AA 5754 hot band and its O-temper counterpart corroborate the validity of these formulae. On the other hand, these measurements also indicate that some microstructure(s) other than texture could play a significant role in the plastic anisotropy of the AA 5754 alloy. For the q-value of a set of O-temper samples of this alloy, the additional microstructure that affects plastic anisotropy was shown to be grain shape. A formula that captures both the effects of crystallographic texture and grain shape on the q-value of the O-temper material was derived. A simple quadratic plastic potential that delivers this q-value formula was written down. Verification of the adequacy of this plastic potential, however, requires further investigations.

Man, Chi-Sing

2003-07-27T23:59:59.000Z

417

Real-Time Quantitative Analysis of Combustion-Generated Polycyclic Aromatic Hydrocarbons by Resonance-Enhanced Multiphoton Ionization Time-of-Flight Mass Spectrometry  

Science Journals Connector (OSTI)

Real-Time Quantitative Analysis of Combustion-Generated Polycyclic Aromatic Hydrocarbons by Resonance-Enhanced Multiphoton Ionization Time-of-Flight Mass Spectrometry ... Field data1 suggest that naphthalene, fluorene, and anthracene are among the most abundant PAH products of incomplete hydrocarbon production. ... The sample transfer line is 6.35 mm diameter, quartz-lined stainless steel tubing (Alltech, Deerfield, IL) that is heated to 250?300 °C using flexible cable heaters (Omega Engineering, Stamford, CT). Care is taken to uniformly heat the sample transfer line, since the efficiency of the line is reduced dramatically by the presence of cold spots. ...

Christopher M. Gittins; Marco J. Castaldi; Selim M. Senkan; Eric A. Rohlfing

1997-02-01T23:59:59.000Z

418

Advances in Host Plant and Rhizobium Genomics to Enhance Symbiotic Nitrogen Fixation in Grain Legumes  

Science Journals Connector (OSTI)

Abstract Legumes form symbiotic relationship with root-nodule, rhizobia. The nitrogen (N2) fixed by legumes is a renewable source and of great importance to agriculture. Symbiotic nitrogen fixation (SNF) is constrained by multiple stresses and alleviating them would improve SNF contribution to agroecosystems. Genetic differences in adaptation tolerance to various stresses are known in both host plant and rhizobium. The discovery and use of promiscuous germplasm in soybean led to the release of high-yielding cultivars in Africa. High N2-fixing soybean cultivars are commercially grown in Australia and some countries in Africa and South America and those of pea in Russia. SNF is a complex trait, governed by multigenes with varying effects. Few major quantitative trait loci (QTL) and candidate genes underlying QTL are reported in grain and model legumes. Nodulating genes in model legumes are cloned and orthologs determined in grain legumes. Single nucleotide polymorphism (SNP) markers from nodulation genes are available in common bean and soybean. Genomes of chickpea, pigeonpea, and soybean; and genomes of several rhizobium species are decoded. Expression studies revealed few genes associated with SNF in model and grain legumes. Advances in host plant and rhizobium genomics are helping identify DNA markers to aid breeding of legume cultivars with high symbiotic efficiency. A paradigm shift is needed by breeding programs to simultaneously improve host plant and rhizobium to harness the strength of positive symbiotic interactions in cultivar development. Computation models based on metabolic reconstruction pathways are providing greater insights to explore genotype–phenotype relationships in SNF. Models to simulate the response of N2 fixation to a range of environmental variables and crop growth are assisting researchers to quantify SNF for efficient and sustainable agricultural production systems. Such knowledge helps identifying bottlenecks in specific legume–rhizobia systems that could be overcome by legume breeding to enhance SNF. This review discusses the recent developments to improve SNF and productivity of grain legumes.

Sangam L. Dwivedi; Kanwar L. Sahrawat; Hari D. Upadhyaya; Alessio Mengoni; Marco Galardini; Marco Bazzicalupo; Emanuele G. Biondi; Mariangela Hungria; Glaciela Kaschuk; Matthew W. Blair; Rodomiro Ortiz

419

A novel approach to the identification and quantitative elemental analysis of amyloid deposits-Insights into the pathology of Alzheimer's disease  

SciTech Connect (OSTI)

There is considerable interest in the role of metals such as iron, copper, and zinc in amyloid plaque formation in Alzheimer's disease. However to convincingly establish their presence in plaques in vivo, a sensitive technique is required that is both quantitatively accurate and avoids isolation of plaques or staining/fixing brain tissue, since these processes introduce contaminants and redistribute elements within the tissue. Combining the three ion beam techniques of scanning transmission ion microscopy, Rutherford back scattering spectrometry and particle induced X-ray emission in conjunction with a high energy (MeV) proton microprobe we have imaged plaques in freeze-dried unstained brain sections from CRND-8 mice, and simultaneously quantified iron, copper, and zinc. Our results show increased metal concentrations within the amyloid plaques compared with the surrounding tissue: iron (85 ppm compared with 42 ppm), copper (16 ppm compared to 6 ppm), and zinc (87 ppm compared to 34 ppm).

Rajendran, Reshmi; Minqin, Ren [Centre for Ion Beam Applications, Department of Physics, Blk S 12, Faculty of Science, National University of Singapore, 2, Science Drive 3, Singapore 117542 (Singapore)] [Centre for Ion Beam Applications, Department of Physics, Blk S 12, Faculty of Science, National University of Singapore, 2, Science Drive 3, Singapore 117542 (Singapore); Ynsa, Maria Dolores [Centro de Micro-Analisis de Materiales (CMAM), Universidad Autonoma de Madrid, Campus de Cantoblanco, 28049 Madrid (Spain)] [Centro de Micro-Analisis de Materiales (CMAM), Universidad Autonoma de Madrid, Campus de Cantoblanco, 28049 Madrid (Spain); Casadesus, Gemma [Department of Neurosciences, Case Western Reserve University, Cleveland, OH 44106 (United States)] [Department of Neurosciences, Case Western Reserve University, Cleveland, OH 44106 (United States); Smith, Mark A.; Perry, George [Department of Pathology, Case Western Reserve University, Cleveland, OH 44106 (United States)] [Department of Pathology, Case Western Reserve University, Cleveland, OH 44106 (United States); Halliwell, Barry [Department of Biochemistry, National University of Singapore (Singapore)] [Department of Biochemistry, National University of Singapore (Singapore); Watt, Frank, E-mail: phywattf@nus.edu.sg [Centre for Ion Beam Applications, Department of Physics, Blk S 12, Faculty of Science, National University of Singapore, 2, Science Drive 3, Singapore 117542 (Singapore)] [Centre for Ion Beam Applications, Department of Physics, Blk S 12, Faculty of Science, National University of Singapore, 2, Science Drive 3, Singapore 117542 (Singapore)

2009-04-24T23:59:59.000Z

420

Method for quantitative determination and separation of trace amounts of chemical elements in the presence of large quantities of other elements having the same atomic mass  

DOE Patents [OSTI]

Photoionization via autoionizing atomic levels combined with conventional mass spectroscopy provides a technique for quantitative analysis of trace quantities of chemical elements in the presence of much larger amounts of other elements with substantially the same atomic mass. Ytterbium samples smaller than 10 ng have been detected using an ArF* excimer laser which provides the atomic ions for a time-of-flight mass spectrometer. Elemental selectivity of greater than 5:1 with respect to lutetium impurity has been obtained. Autoionization via a single photon process permits greater photon utilization efficiency because of its greater absorption cross section than bound-free transitions, while maintaining sufficient spectroscopic structure to allow significant photoionization selectivity between different atomic species. Separation of atomic species from others of substantially the same atomic mass is also described.

Miller, C.M.; Nogar, N.S.

1982-09-02T23:59:59.000Z

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


421

Quantitative assessment of alkali-reactive aggregate mineral content through XRD using polished sections as a supplementary tool to RILEM AAR-1 (petrographic method)  

SciTech Connect (OSTI)

The mineral content of 5 aggregate samples from 4 different countries, including reactive and non-reactive aggregate types, was assessed quantitatively by X-ray diffraction (XRD) using polished sections. Additionally, electron probe microanalyzer (EPMA) mapping and cathodoluminescence (CL) were used to characterize the opal-CT identified in one of the aggregate samples. Critical review of results from polished sections against traditionally powdered specimen has demonstrated that for fine-grained rocks without preferred orientation the assessment of mineral content by XRD using polished sections may represent an advantage over traditional powder specimens. Comparison of data on mineral content and silica speciation with expansion data from PARTNER project confirmed that the presence of opal-CT plays an important role in the reactivity of one of the studied aggregates. Used as a complementary tool to RILEM AAR-1, the methodology suggested in this paper has the potential to improve the strength of the petrographic method.

Castro, Nelia, E-mail: nelia.castro@ntnu.no [Norwegian University of Science and Technology (NTNU), Department of Geology and Mineral Resources Engineering, Sem Saelands vei 1, N-7491 Trondheim (Norway)] [Norwegian University of Science and Technology (NTNU), Department of Geology and Mineral Resources Engineering, Sem Saelands vei 1, N-7491 Trondheim (Norway); Sorensen, Bjorn E. [Norwegian University of Science and Technology (NTNU), Department of Geology and Mineral Resources Engineering, Sem Saelands vei 1, N-7491 Trondheim (Norway)] [Norwegian University of Science and Technology (NTNU), Department of Geology and Mineral Resources Engineering, Sem Saelands vei 1, N-7491 Trondheim (Norway); Broekmans, Maarten A.T.M. [Geological Survey of Norway, Department of Industrial Minerals and Metals, PO Box 6315 Sluppen, N-7491 Trondheim (Norway)

2012-11-15T23:59:59.000Z

422

Growth and carcass traits and sire effects on growth and carcass traits in purebred beefmaster cattle  

E-Print Network [OSTI]

they are producing. With this knowledge producers can maintain or alter their breeding program as needed to achieve the goal of producing high quality cattle. The McAllen Ranch, located in Raymondville, Texas is one operation that is trying to identify the actual...

Schick, James B.

2012-06-07T23:59:59.000Z

423

Comparing the adaptive landscape across trait types: larger QTL effect size in traits under biotic selection  

E-Print Network [OSTI]

set, we performed both a Kruskal-Wallis test and a Student’sand biotic selec- tion using a Kruskal-Wallis one-wayanalysis of variance (Kruskal-Wallis chi-squared = 53.3806,

Louthan, Allison M; Kay, Kathleen M

2011-01-01T23:59:59.000Z

424

The Separation, Identification, and Quantitation of Cannabinoids and Their t-Butyldimethylsilyl, Trimethylsilylacetate, and Diethylphosphate Derivatives Using High-Pressure Liquid Chromatography, Gas-Liquid Chromatography, and Mass Spectrometry  

Science Journals Connector (OSTI)

......The neces- sity for internal standards; the sensitivity of the HPLC...80-100 mesh) acid washed and DMSC treated at 200 , with a He...The selection of an internal standard for quantitative HPLC 3 See...necessary to choose an internal standard which can be readily separated......

E.E. Knaus; R.T. Coutts; C.W. Kazakoff

1976-11-01T23:59:59.000Z

425

A method for direct, semi-quantitative analysis of gas phase samples using gas chromatography-inductively coupled plasma-mass spectrometry  

SciTech Connect (OSTI)

A new and complete GC–ICP-MS method is described for direct analysis of trace metals in a gas phase process stream. The proposed method is derived from standard analytical procedures developed for ICP-MS, which are regularly exercised in standard ICP-MS laboratories. In order to implement the method, a series of empirical factors were generated to calibrate detector response with respect to a known concentration of an internal standard analyte. Calibrated responses are ultimately used to determine the concentration of metal analytes in a gas stream using a semi-quantitative algorithm. The method was verified using a traditional gas injection from a GC sampling valve and a standard gas mixture containing either a 1 ppm Xe + Kr mix with helium balance or 100 ppm Xe with helium balance. Data collected for Xe and Kr gas analytes revealed that agreement of 6–20% with the actual concentration can be expected for various experimental conditions. To demonstrate the method using a relevant “unknown” gas mixture, experiments were performed for continuous 4 and 7 hour periods using a Hg-containing sample gas that was co-introduced into the GC sample loop with the xenon gas standard. System performance and detector response to the dilute concentration of the internal standard were pre-determined, which allowed semi-quantitative evaluation of the analyte. The calculated analyte concentrations varied during the course of the 4 hour experiment, particularly during the first hour of the analysis where the actual Hg concentration was under predicted by up to 72%. Calculated concentration improved to within 30–60% for data collected after the first hour of the experiment. Similar results were seen during the 7 hour test with the deviation from the actual concentration being 11–81% during the first hour and then decreasing for the remaining period. The method detection limit (MDL) was determined for the mercury by injecting the sample gas into the system following a period of equilibration. The MDL for Hg was calculated as 6.8 ?g · m{sup ? 3}. This work describes the first complete GC–ICP-MS method to directly analyze gas phase samples, and detailed sample calculations and comparisons to conventional ICP-MS methods are provided.

Carter, Kimberly E.; Gerdes, Kirk

2013-07-01T23:59:59.000Z

426

Dermatoglyphics in Sports Sciences: Understanding the distribution of quantitative indicators in non-athletes and athletes of basketball according to their performance  

Science Journals Connector (OSTI)

Objectives One of the concerns of Sports Sciences is the search for methodologies that can help discover potential athletes. In this sense, some initiatives have been taken in an attempt to identify and characterize the genetic profile of dermatoglyphic marks (fingerprints). The present work has the objective of understanding the distribution of quantitative dermatoglyphic indicators in basketball players with different levels of performance compared to non-players. Methods The subjects observed constituted 125 individuals, divided into five numerically equal groups, three of which were composed of professional basketball players according to their level of participation (Brazilian Team, National Championship and Săo Paulo Championship) and the last two formed by weekend players and non-players, respectively. Eleven dermatoglyphic variables were analysed in the descriptive level by means of measurement of position, variability and limits of confidence of the median, and, in inferential terms, the Kruskal-Wallis statistical test was adopted. Results The more expressive ones were: TRC, counting lines a-b and A’-d, behave differently between athletes and non-athletes. Conclusion Studies about this kind of analysis should be continued, calling on resources that take into consideration all variables simultaneously as a multivariate study.

J.P. Borin; C.R. Padovani; F.F. Aragon; A. Gonçalves

2012-01-01T23:59:59.000Z

427

Departures from local thermodynamic equilibrium in cutting arc plasmas derived from electron and gas density measurements using a two-wavelength quantitative Schlieren technique  

SciTech Connect (OSTI)

A two-wavelength quantitative Schlieren technique that allows inferring the electron and gas densities of axisymmetric arc plasmas without imposing any assumption regarding statistical equilibrium models is reported. This technique was applied to the study of local thermodynamic equilibrium (LTE) departures within the core of a 30 A high-energy density cutting arc. In order to derive the electron and heavy particle temperatures from the inferred density profiles, a generalized two-temperature Saha equation together with the plasma equation of state and the quasineutrality condition were employed. Factors such as arc fluctuations that influence the accuracy of the measurements and the validity of the assumptions used to derive the plasma species temperature were considered. Significant deviations from chemical equilibrium as well as kinetic equilibrium were found at elevated electron temperatures and gas densities toward the arc core edge. An electron temperature profile nearly constant through the arc core with a value of about 14000-15000 K, well decoupled from the heavy particle temperature of about 1500 K at the arc core edge, was inferred.

Prevosto, L.; Mancinelli, B. [Grupo de Descargas Electricas, Departamento Ing. Electromecanica, Facultad Regional Venado Tuerto (UTN), Laprida 651, Venado Tuerto 2600, Santa Fe (Argentina); Artana, G. [Laboratorio de Fluidodinamica, Departamento Ing. Mecanica, Facultad de Ingenieria (UBA), Paseo Colon 850, C1063ACV, Buenos Aires (Argentina); Kelly, H. [Grupo de Descargas Electricas, Departamento Ing. Electromecanica, Facultad Regional Venado Tuerto (UTN), Laprida 651, Venado Tuerto 2600, Santa Fe (Argentina); Departamento de Fisica, Facultad de Ciencias Exactas y Naturales (UBA), Instituto de Fisica del Plasma (CONICET), Ciudad Universitaria, Pab. I, 1428 Buenos Aires (Argentina)

2011-03-15T23:59:59.000Z

428

Fuzzy FlowSort: An integration of the FlowSort method and Fuzzy Set Theory for decision making on the basis of inaccurate quantitative data  

Science Journals Connector (OSTI)

Abstract Nowadays, most real-life decision problems can be modeled as sorting problems although it is difficult to quantitatively express the evaluation criteria precisely or precise values are inadequate to model the criteria. For these situations, multicriteria methods can be extended by using fuzzy theory, thereby providing mathematical methods able to deal with decision processes in a fuzzy environment. In this context, we propose a sorting method called Fuzzy FlowSort (F-FlowSort) based on Fuzzy Set Theory and FlowSort, which is a Promethee-based sorting method. To demonstrate the usefulness and applicability of this new method, an illustrative numerical example is presented. The result confirms the potential and the applicability of associating fuzzy logic with the FlowSort method for processing imprecise data. Comparisons are made between the results provided by Fuzzy FlowSort and FlowSort and also between Fuzzy FlowSort and another algorithm based on FlowSort that deals with the imprecision of data when they are defined by intervals. In addition, the association between the results obtained with the F-FlowSort and FlowSort methods and Promethee and F-Promethee methods is investigated.

Ana Carolina Scanavachi Moreira Campos; Bertrand Mareschal; Adiel Teixeira de Almeida

2015-01-01T23:59:59.000Z

429

Time-Resolved Quantitative Measurement of OH HO2 and CH2O in Fuel Oxidation Reactions by High Resolution IR Absorption Spectroscopy.  

SciTech Connect (OSTI)

Combined with a Herriott-type multi-pass slow flow reactor, high-resolution differential direct absorption spectroscopy has been used to probe, in situ and quantitatively, hydroxyl (OH), hydroperoxy (HO 2 ) and formaldehyde (CH 2 O) molecules in fuel oxidation reactions in the reactor, with a time resolution of about 1 micro-second. While OH and CH 2 O are probed in the mid-infrared (MIR) region near 2870nm and 3574nm respectively, HO 2 can be probed in both regions: near-infrared (NIR) at 1509nm and MIR at 2870nm. Typical sensitivities are on the order of 10 10 - 10 11 molecule cm -3 for OH at 2870nm, 10 11 molecule cm -3 for HO 2 at 1509nm, and 10 11 molecule cm -3 for CH 2 O at 3574nm. Measurements of multiple important intermediates (OH and HO 2 ) and product (CH 2 O) facilitate to understand and further validate chemical mechanisms of fuel oxidation chemistry.

Huang, Haifeng; Rotavera, Brandon; Taatjes, Craig A.

2014-08-01T23:59:59.000Z

430

Separation scheme for selective and quantitative isolation of cobalt from neutron-irradiated biological materials by ion exchange and extraction chromatography  

SciTech Connect (OSTI)

Highly reliable radiochemical separation scheme for selective and quantitative isolation of trace amounts of cobalt from neutron-irradiated biological materials was elaborated. The method consists in wet-ashing of the sample with HNO{sub 3} + HClO{sub 4} (1:1) mixture plus vanadium salt (oxidation catalyst), removal of silica by evaporation with HF and separation of cobalt from accompanying ions successively on 3 columns with Dowex 1-X8[Cl{sup -}] from 0.5 M HCl, Dowex 1-X8[Cl{sup -}] from 8 M HCl + 2 M MgCl{sub 2} and tri-n-octylphosphine oxide (TOPO) supported on styrene-divinylbenzene copolymer, from 7 M HCl solution, respectively. Cobalt of very high radiochemical purity is finally recovered in 1.2 M HCl solution with practically 100% yield. The separation scheme is universally applicable, to biological samples of both animal and plant origin and was devised to become an integral part of the very accurate ({open_quotes}definitive{close_quotes}) method of cobalt determination by neutron activation analysis (NAA). Preliminary results on Co determination by NAA in some certified reference materials confirmed high reliability of the devised separation scheme.

Dybczynski, R.; Danko, B.; Maleszewska, H. [Institute of Nuclear Chemistry and Technology, Warsaw (Poland)

1994-01-01T23:59:59.000Z

431

Quantitative biology of single neurons  

Science Journals Connector (OSTI)

...1930-1931. 25 Pawley, J. B. 2006 Handbook of biological confocal microscopy. New...NY: Springer. 26 Grupen, C. 2011 Handbook of particle detection and imaging. New...biological systems are single cells. Fundamental insights gained from single-cell analysis...

2012-01-01T23:59:59.000Z

432

Knowledge engineering in quantitative histopathology  

Science Journals Connector (OSTI)

Ongoing research on a system for the automated evaluation of digitized images of histopathologic sections is described. The system comprises an ultrafast laser scanner microscope...

Bartels, Peter H; Graham, A; Kuhn, W; Paplanus, S; Wied, George L

1987-01-01T23:59:59.000Z

433

Quantitative biology of single neurons  

Science Journals Connector (OSTI)

...micropipette of the soma (b) and dendrites (c). Figure-4. Live single-cell mRNA translation...cell.2008.10.028 ) 117 Sugino, K. , C. M. Hempel, M. N. Miller, A. M. Hattox, P. Shapiro, C. Wu, Z. J. Huang, and S. B. Nelson...

2012-01-01T23:59:59.000Z

434

Quantitative tunneling spectroscopy of nanocrystals  

SciTech Connect (OSTI)

The proposed goals of this collaborative work were to systematically characterize the electronic structure and dynamics of 3-dimensional metal and semiconducting nanocrystals using scanning tunneling microscopy/spectroscopy (STM/STS) and ballistic electron emission spectroscopy (BEES). This report describes progress in the spectroscopic work and in the development of methods for creating and characterizing gold nanocrystals. During the grant period, substantial effort also was devoted to the development of epitaxial graphene (EG), a very promising materials system with outstanding potential for nanometer-scale ballistic and coherent devices ("graphene"Âť refers to one atomic layer of graphitic, sp2 -bonded carbon atoms [or more loosely, few layers]). Funding from this DOE grant was critical for the initial development of epitaxial graphene for nanoelectronics

First, Phillip N; Whetten, Robert L; Schaaff, T Gregory

2007-05-25T23:59:59.000Z

435

Climate Change: A Quantitative Question  

E-Print Network [OSTI]

-EH GISS-ER FGOALS-g1.00 INM-CCM3.0 PCM Sensitivity varies by more than a factor of 2. #12;ZONAL MONTHLY

Schwartz, Stephen E.

436

Genetic Dissection of the Drosophila melanogaster Female Head Transcriptome Reveals Widespread Allelic Heterogeneity  

E-Print Network [OSTI]

Modern genetic mapping is plagued by the “missing heritability” problem, which refers to the discordance between the estimated heritabilities of quantitative traits and the variance accounted for by mapped causative variants. ...

King, Elizabeth G.; Sanderson, Brian J.; McNeil, Casey Lee; Long, Anthony D.; Macdonald, Stuart J.

2014-05-08T23:59:59.000Z

437

E-Print Network 3.0 - advanced-stage ovarian carcinoma Sample...  

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

Susceptibility Summary: Carcinoma Susceptibility Quantitative Trait Locus, Mcs5 David J. Samuelson, Beth A. Aperavich, Jill D. Haag... , respectively, 4.0 F 0.4, 11.6 F 0.6, and...

438

Quantitative assessment of the accuracy of dose calculation using pencil beam and Monte Carlo algorithms and requirements for clinical quality assurance  

SciTech Connect (OSTI)

To compare the doses calculated using the BrainLAB pencil beam (PB) and Monte Carlo (MC) algorithms for tumors located in various sites including the lung and evaluate quality assurance procedures required for the verification of the accuracy of dose calculation. The dose-calculation accuracy of PB and MC was also assessed quantitatively with measurement using ionization chamber and Gafchromic films placed in solid water and heterogeneous phantoms. The dose was calculated using PB convolution and MC algorithms in the iPlan treatment planning system from BrainLAB. The dose calculation was performed on the patient's computed tomography images with lesions in various treatment sites including 5 lungs, 5 prostates, 4 brains, 2 head and necks, and 2 paraspinal tissues. A combination of conventional, conformal, and intensity-modulated radiation therapy plans was used in dose calculation. The leaf sequence from intensity-modulated radiation therapy plans or beam shapes from conformal plans and monitor units and other planning parameters calculated by the PB were identical for calculating dose with MC. Heterogeneity correction was considered in both PB and MC dose calculations. Dose-volume parameters such as V95 (volume covered by 95% of prescription dose), dose distributions, and gamma analysis were used to evaluate the calculated dose by PB and MC. The measured doses by ionization chamber and EBT GAFCHROMIC film in solid water and heterogeneous phantoms were used to quantitatively asses the accuracy of dose calculated by PB and MC. The dose-volume histograms and dose distributions calculated by PB and MC in the brain, prostate, paraspinal, and head and neck were in good agreement with one another (within 5%) and provided acceptable planning target volume coverage. However, dose distributions of the patients with lung cancer had large discrepancies. For a plan optimized with PB, the dose coverage was shown as clinically acceptable, whereas in reality, the MC showed a systematic lack of dose coverage. The dose calculated by PB for lung tumors was overestimated by up to 40%. An interesting feature that was observed is that despite large discrepancies in dose-volume histogram coverage of the planning target volume between PB and MC, the point doses at the isocenter (center of the lesions) calculated by both algorithms were within 7% even for lung cases. The dose distributions measured with EBT GAFCHROMIC films in heterogeneous phantoms showed large discrepancies of nearly 15% lower than PB at interfaces between heterogeneous media, where these lower doses measured by the film were in agreement with those by MC. The doses (V95) calculated by MC and PB agreed within 5% for treatment sites with small tissue heterogeneities such as the prostate, brain, head and neck, and paraspinal tumors. Considerable discrepancies, up to 40%, were observed in the dose-volume coverage between MC and PB in lung tumors, which may affect clinical outcomes. The discrepancies between MC and PB increased for 15 MV compared with 6 MV indicating the importance of implementation of accurate clinical treatment planning such as MC. The comparison of point doses is not representative of the discrepancies in dose coverage and might be misleading in evaluating the accuracy of dose calculation between PB and MC. Thus, the clinical quality assurance procedures required to verify the accuracy of dose calculation using PB and MC need to consider measurements of 2- and 3-dimensional dose distributions rather than a single point measurement using heterogeneous phantoms instead of homogenous water-equivalent phantoms.

Ali, Imad, E-mail: iali@ouhsc.edu [Department of Radiation Oncology, University of Oklahoma Health Sciences Center, Oklahoma City, OK (United States); Ahmad, Salahuddin [Department of Radiation Oncology, University of Oklahoma Health Sciences Center, Oklahoma City, OK (United States)

2013-10-01T23:59:59.000Z

439

Evaluation of dual energy quantitative CT for determining the spatial distributions of red marrow and bone for dosimetry in internal emitter radiation therapy  

SciTech Connect (OSTI)

Purpose: To evaluate a three-equation three-unknown dual-energy quantitative CT (DEQCT) technique for determining region specific variations in bone spongiosa composition for improved red marrow dose estimation in radionuclide therapy. Methods: The DEQCT method was applied to 80/140 kVp images of patient-simulating lumbar sectional body phantoms of three sizes (small, medium, and large). External calibration rods of bone, red marrow, and fat-simulating materials were placed beneath the body phantoms. Similar internal calibration inserts were placed at vertebral locations within the body phantoms. Six test inserts of known volume fractions of bone, fat, and red marrow were also scanned. External-to-internal calibration correction factors were derived. The effects of body phantom size, radiation dose, spongiosa region segmentation granularity [single (?17 × 17 mm) region of interest (ROI), 2 × 2, and 3 × 3 segmentation of that single ROI], and calibration method on the accuracy of the calculated volume fractions of red marrow (cellularity) and trabecular bone were evaluated. Results: For standard low dose DEQCT x-ray technique factors and the internal calibration method, the RMS errors of the estimated volume fractions of red marrow of the test inserts were 1.2–1.3 times greater in the medium body than in the small body phantom and 1.3–1.5 times greater in the large body than in the small body phantom. RMS errors of the calculated volume fractions of red marrow within 2 × 2 segmented subregions of the ROIs were 1.6–1.9 times greater than for no segmentation, and RMS errors for 3 × 3 segmented subregions were 2.3–2.7 times greater than those for no segmentation. Increasing the dose by a factor of 2 reduced the RMS errors of all constituent volume fractions by an average factor of 1.40 ± 0.29 for all segmentation schemes and body phantom sizes; increasing the dose by a factor of 4 reduced those RMS errors by an average factor of 1.71 ± 0.25. Results for external calibrations exhibited much larger RMS errors than size matched internal calibration. Use of an average body size external-to-internal calibration correction factor reduced the errors to closer to those for internal calibration. RMS errors of less than 30% or about 0.01 for the bone and 0.1 for the red marrow volume fractions would likely be satisfactory for human studies. Such accuracies were achieved for 3 × 3 segmentation of 5 mm slice images for: (a) internal calibration with 4 times dose for all size body phantoms, (b) internal calibration with 2 times dose for the small and medium size body phantoms, and (c) corrected external calibration with 4 times dose and all size body phantoms. Conclusions: Phantom studies are promising and demonstrate the potential to use dual energy quantitative CT to estimate the spatial distributions of red marrow and bone within the vertebral spongiosa.

Goodsitt, Mitchell M., E-mail: goodsitt@umich.edu; Shenoy, Apeksha; Howard, David; Christodoulou, Emmanuel; Dewaraja, Yuni K. [Department of Radiology, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, Michigan 48109 (United States)] [Department of Radiology, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, Michigan 48109 (United States); Shen, Jincheng [Department of Biostatistics, University of Michigan, 1415 Washington Heights, Ann Arbor, Michigan 48109 (United States)] [Department of Biostatistics, University of Michigan, 1415 Washington Heights, Ann Arbor, Michigan 48109 (United States); Schipper, Matthew J. [Department of Radiation Oncology, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, Michigan 48109 (United States)] [Department of Radiation Oncology, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, Michigan 48109 (United States); Wilderman, Scott [Department of Nuclear Engineering, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, Michigan 48109 (United States)] [Department of Nuclear Engineering, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, Michigan 48109 (United States); Chun, Se Young [Ulsan National Institute of Science and Technology (UNIST), School of Electrical and Computer Engineering, Ulsan 689-798 (Korea, Republic of)] [Ulsan National Institute of Science and Technology (UNIST), School of Electrical and Computer Engineering, Ulsan 689-798 (Korea, Republic of)

2014-05-15T23:59:59.000Z

440

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

Science Journals Connector (OSTI)

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

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

2014-01-01T23:59:59.000Z

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


441

Quantitative Spectroscopy of 24 A supergiants in the Sculptor galaxy NGC 300: Flux weighted gravity luminosity relationship, metallicity and metallicity gradient  

E-Print Network [OSTI]

A quantitative spectral analysis of 24 A supergiants in the Sculptor Group spiral galaxy NGC 300 at a distance of 1.9 Mpc is presented. A new method is introduced to analyze low resolution (~5 AE) spectra, which yields metallicities accurate to 0.2 dex including the uncertainties arising from the errors in Teff (5%) and log g (0.2 dex). For the first time the stellar metallicity gradient based on elements such as titanium and iron in a galaxy beyond the Local Group is investigated. Solar metallicity is measured in the center and 0.3 solar in the outskirts and a logarithmic gradient of -0.08 dex/kpc. An average reddening of E(B-V)~0.12 mag is obtained, however with a large variation from 0.07 to 0.24 mag. We also determine stellar radii, luminosities and masses and discuss the evolutionary status. Finally, the observed relationship between absolute bolometric magnitudes M_{bol} and flux weighted gravities g_{F} = g/Teff^4 is investigated. At high temperatures the strengths of the Balmer lines depends solely on the flux-weighted gravity, which allows a precise direct determination of log g_{F} with an accuracy of 0.05 to 0.1 dex. We find a tight relationship between M_{bol} and log g_{F} in agreement with stellar evolution theory. Combining these new results with previous work on Local Group galaxies we obtain a new flux weighted gravity luminosity relationship (FGLR), which is very well defined and appears to be an excellent alternative tool to determine distances to galaxies.

R. -P. Kudritzki; M. A. Urbaneja; F. Bresolin; N. Przybilla; W. Gieren; G. Pietrzynski

2008-03-26T23:59:59.000Z

442

Quantitative immunogold evidence that glutamate is a neurotransmitter in afferent synaptic terminals within the isthmo-optic nucleus of the pigeon centrifugal visual system  

Science Journals Connector (OSTI)

A quantitative electron microscopic analysis of glutamate (GLU) immunoreactivity using the post-embedding immunogold technique was carried out within the isthmo-optic nucleus (ION) of the pigeon centrifugal visual system (CVS). Measurements were performed in each of eight different categories of axon terminals, including those that were GABA-immunoreactive (-ir), considered representing control profiles and identified using a single or double-label immunocytochemical procedure. The results demonstrated that the glutamate immunogold particle densities for both mitochondrial and vesicular pools and for total surface area of bouton profiles were significantly higher in P1a, \\{P1b\\} and \\{P2b\\} terminals and not significantly different in P4 and P5 terminals compared to those recorded in control GABA-ir terminals (P2a, P2c, P3). Moreover, the values measured in GLU-ir positive profiles were all significantly higher than in either P4 or P5 terminals. The results suggest that tectal neurons, which provide the main input to the ION cells, are either inhibitory GABA-ir possibly associated with \\{P2c\\} and/or P3 terminals or excitatory GLU-ir via P1a, \\{P1b\\} and \\{P2b\\} terminals. Such differential effects of tectal afferents may be the basis for the modulation of centrifugal activity and consequently of end target retinal ganglion cell responses. The data are relevant to hypotheses implicating the avian CVS in mechanisms of selective enhancement of visual attention to either novel or meaningful stimuli within the visual field.

Dom Miceli; Jacques Repérant; Jean-Paul Rio; Jean Désilets; Monique Médina

2000-01-01T23:59:59.000Z

443

Qualitative and Quantitative Assessment of Nuclear Materials Contained in High-Activity Waste Arising from the Operations at the 'SHELTER' Facility  

SciTech Connect (OSTI)

As a result of the nuclear accident at the Chernobyl NPP in 1986, the explosion dispeesed nuclear materials contained in the nuclear fuel of the reactor core over the destroyed facilities at Unit No. 4 and over the territory immediately adjacent to the destroyed unit. The debris was buried under the Cascade Wall. Nuclear materials at the SHELTER can be characterized as spent nuclear fuel, fresh fuel assemblies (including fuel assemblies with damaged geometry and integrity, and individual fuel elements), core fragments of the Chernobyl NPP Unit No. 4, finely-dispersed fuel (powder/dust), uranium and plutonium compounds in water solutions, and lava-like nuclear fuel-containing masses. The new safe confinement (NSC) is a facility designed to enclose the Chernobyl NPP Unit No. 4 destroyed by the accident. Construction of the NSC involves excavating operations, which are continuously monitored including for the level of radiation. The findings of such monitoring at the SHELTER site will allow us to characterize the recovered radioactive waste. When a process material categorized as high activity waste (HAW) is detected the following HLW management operations should be involved: HLW collection; HLW fragmentation (if appropriate); loading HAW into the primary package KT-0.2; loading the primary package filled with HAW into the transportation cask KTZV-0.2; and storing the cask in temporary storage facilities for high-level solid waste. The CDAS system is a system of 3He tubes for neutron coincidence counting, and is designed to measure the percentage ratio of specific nuclear materials in a 200-liter drum containing nuclear material intermixed with a matrix. The CDAS consists of panels with helium counter tubes and a polyethylene moderator. The panels are configured to allow one to position a waste-containing drum and a drum manipulator. The system operates on the ‘add a source’ basis using a small Cf-252 source to identify irregularities in the matrix during an assay. The platform with the source is placed under the measurement chamber. The platform with the source material is moved under the measurement chamber. The design allows one to move the platform with the source in and out, thus moving the drum. The CDAS system and radioactive waste containers have been built. For each drum filled with waste two individual measurements (passive/active) will be made. This paper briefly describes the work carried out to assess qualitatively and quantitatively the nuclear materials contained in high-level waste at the SHELTER facility. These efforts substantially increased nuclear safety and security at the facility.

Cherkas, Dmytro

2011-10-01T23:59:59.000Z

444

IWGT report on quantitative approaches to genotoxicity risk assessment II. Use of point-of-departure (PoD) metrics in defining acceptable exposure limits and assessing human risk  

Science Journals Connector (OSTI)

Abstract This is the second of two reports from the International Workshops on Genotoxicity Testing (IWGT) Working Group on Quantitative Approaches to Genetic Toxicology Risk Assessment (the QWG). The first report summarized the discussions and recommendations of the QWG related to the need for quantitative dose–response analysis of genetic toxicology data, the existence and appropriate evaluation of threshold responses, and methods to analyze exposure-response relationships and derive points of departure (PoDs) from which acceptable exposure levels could be determined. This report summarizes the QWG discussions and recommendations regarding appropriate approaches to evaluate exposure-related risks of genotoxic damage, including extrapolation below identified PoDs and across test systems and species. Recommendations include the selection of appropriate genetic endpoints and target tissues, uncertainty factors and extrapolation methods to be considered, the importance and use of information on mode of action, toxicokinetics, and metabolism, and exposure biomarkers when using quantitative exposure-response data to determine acceptable exposure levels in human populations or to assess the risk associated with known or anticipated exposures. The empirical relationship between genetic damage (mutation and chromosomal aberration) and cancer in animal models was also examined. It was concluded that there is a general correlation between cancer induction and mutagenic and/or clastogenic damage for agents thought to act via a genotoxic mechanism, but that the correlation is limited due to an inadequate number of cases in which mutation and cancer can be compared at a sufficient number of doses in the same target tissues of the same species and strain exposed under directly comparable routes and experimental protocols.

James T. MacGregor; Roland Frötschl; Paul A. White; Kenny S. Crump; David A. Eastmond; Shoji Fukushima; Melanie Guérard; Makoto Hayashi; Lya Soeteman-Hernandez; George E. Johnson; Toshio Kasamatsu; Dan D. Levy; Takeshi Morita; Lutz Müller; Rita Schoeny; Maik J. Schuler; Véronique Thybaud

2014-01-01T23:59:59.000Z

445

Six new loci associated with body mass index highlight a neuronal influence on body weight regulation  

E-Print Network [OSTI]

4,5, Kijoung Song12, Jonathan Stephens61, Suzanne Stevens51, Heather M Stringham1, Y C Loraine Tung5

Abecasis, Goncalo

446

Admixture Analysis of Florida Largemouth Bass and Northern Largemouth Bass using Microsatellite Loci  

E-Print Network [OSTI]

Department of Biology, Texas State University at San Marcos, San Marcos, Texas 78666, USA LORAINE T. FRIES

Aspbury, Andrea S. - Department of Biology, Texas State University

447

Identification of Genomic Loci Associated with Rhodococcus equi Susceptibility in Foals  

E-Print Network [OSTI]

* 1Department of Large Animal Clinical Sciences, Texas A&M University College of Veterinary Medicine & Biomedical Sciences, College Station, Texas, United States of America, 2Department of Veterinary Pathobiology, Texas A&M University College... of Veterinary Medicine & Biomedical Sciences, College Station, Texas, United States of America, 3Department of Molecular and Cellular Medicine, Texas A&M University College of Medicine, College Station, Texas, United States of America, 4Department of Electrical...

McQueen, Cole M.; Doan, Ryan; Dindot, Scott V.; Bourquin, Jessica R.; Zlatev, Zlatomir Z.; Chaffin, M. Keith; Blodgett, Glenn P.; Ivanov, Ivan; Cohen, Noah D.

2014-06-03T23:59:59.000Z

448

Contrasting Effects of Selection on Sequence Diversity and Linkage Disequilibrium at Two Phytoene Synthase Loci  

Science Journals Connector (OSTI)

...Colombian, Caribbean, Central American, Indian, Thai, and Filipino lines PI595539 Tuxpeno...2047 and 2101. Therefore, the 0-value point on the graph is set between the two positions...because of the nearly complete lack of data points in the Y1 region. , whereas an estimation...

Kelly A. Palaisa; Michele Morgante; Mark Williams; Antoni Rafalski

2003-07-14T23:59:59.000Z

449

Genome-wide association study meta-analysis identifies 7 novel rheumatoid arthritis risk loci  

E-Print Network [OSTI]

)­Epidemiology Unit, Stopford Building, The University of Manchester, Manchester M13 9PT, United Kingdom. 6. Celera and University Health Network, Toronto, Ontario M5G 1X5, Canada. 8. Institute of Environmental Medicine's Hospital, Boston, MA 02115, USA. 13. NIHR-Leeds Musculoskeletal Biomedical Research Unit, Leeds Institute

de Bakker, Paul

450

From famine to feast? Selecting nuclear DNA sequence loci for plant species-level phylogeny  

E-Print Network [OSTI]

Generation agents ­ Own and operate virtual power plants ­ Submit power bids to the independent system in the EMCAS model #12;3 Argonne Staff Act Out the Roles of Individual Agents in a Virtual Electric PowerElectric Power Market Simulations Using Individuals as Agents Guenter Conzelmann Argonne National

Bailey, Donovan

451

Identification of Distal cis-Regulatory Elements at Mouse Mitoferrin Loci Using Zebrafish Transgenesis  

Science Journals Connector (OSTI)

...immunoprecipitation (ChIP) datasets for the major erythroid transcription...triggers erythroid maturation by nuclear translocation of the fusion...FOG-1, induces an exchange of nuclear factors at both CRMs. GATA-2...immunoprecipitation (ChIP) datasets for the major erythroid transcription...

Julio D. Amigo; Ming Yu; Marie-Berengere Troadec; Babette Gwynn; Jeffrey D. Cooney; Amy J. Lambert; Neil C. Chi; Mitchell J. Weiss; Luanne L. Peters; Jerry Kaplan; Alan B. Cantor; Barry H. Paw

2011-01-19T23:59:59.000Z

452

The Identification of Two Maturity Loci Sheds Light on Photoperiodic Flowering in Sorghum  

E-Print Network [OSTI]

, and was identified as Grain Yield, Plant Height and Heading Date 7 (Ghd7). Sequence analysis of Ghd7 revealed several severe mutations and these were traced through several Milo maturity standards, sweet and bioenergy varieties, as well as the pedigree of lines used...

Murphy, Rebecca

2012-10-19T23:59:59.000Z

453

Convergent evolution of complex regulatory landscapes and pleiotropy at Hox loci  

Science Journals Connector (OSTI)

...L. Noordermeer D. Rougemont J. Leleu M. , HTSstation: A web application and open-access libraries for high-throughput sequencing...22929766 33 Engstrom P. G. Fredman D. Lenhard B. , Ancora: A web resource for exploring highly conserved noncoding elements and...

Nicolas Lonfat; Thomas Montavon; Fabrice Darbellay; Sandra Gitto; Denis Duboule

2014-11-21T23:59:59.000Z

454

SATB1 tethers multiple gene loci to reprogram expression profile driving breast cancer metastasis  

E-Print Network [OSTI]

Palo Alto, CA ). Biotin-labeled cRNA was prepared by linear amplification of the Poly(A)+ RNA population

Han, Hye-Jung; Kohwi, Yoshinori; Kohwi-Shigematsu, Terumi

2008-01-01T23:59:59.000Z

455

Transcriptional Regulation in Algae, Fungi and Plants: Mating Loci, Splicing, and miRNAs  

E-Print Network [OSTI]

from organisms ranging from algae to fungi and plants. WeTranscriptional Regulation in Algae, Fungi and Plants:Transcriptional Regulation in Algae, Fungi and Plants:

Douglass, Stephen Michael

2014-01-01T23:59:59.000Z

456

E-Print Network 3.0 - arthritis susceptibility loci Sample Search...  

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

risk ... Source: Raychaudhuri, Soumya - Division of Genetics, Brigham and Women's Hospital, Harvard University Collection: Biology and Medicine 2 508 VOLUME 42 | NUMBER 6 |...

457

Stellar loci II. a model-free estimate of the binary fraction for field FGK stars  

E-Print Network [OSTI]

We propose a Stellar Locus OuTlier (SLOT) method to determine the binary fraction of main-sequence stars statistically. The method is sensitive to neither the period nor mass-ratio distributions of binaries, and able to provide model-free estimates of binary fraction for large numbers of stars of different populations in large survey volumes. We have applied the SLOT method to two samples of stars from the SDSS Stripe 82, constructed by combining the re-calibrated SDSS photometric data with respectively the spectroscopic information from the SDSS and LAMOST surveys. For the SDSS spectroscopic sample, we find an average binary fraction for field FGK stars of $41%\\pm2%$. The fractions decrease toward late spectral types, and are respectively $44%\\pm5%$, $43%\\pm3%$, $35%\\pm5%$, and $28%\\pm6%$ for stars of $g-i$ colors between 0.3 -- 0.6, 0.6 -- 0.9, 0.9 -- 1.2, and 1.2 - 1.6\\,mag. A modest metallicity dependence is also found. The fraction decreases with increasing metallicity. For stars of [Fe/H] between $-0.5$...

Yuan, Haibo; Xiang, Maosheng; Huang, Yang; Chen, Bingqiu

2014-01-01T23:59:59.000Z

458

E-Print Network 3.0 - active loci determines Sample Search Results  

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

Sciences and Ecology 48 Genomic scans detect signatures of selection along a salinity gradient in populations of the intertidal seaweed Fucus serratus on a 12 km scale...

459

Sotoodehnia, et al.: QRS GWAS SUPPLEMENTARY MATERIAL: Common variants in 22 loci are associated with QRS  

E-Print Network [OSTI]

, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands 14 Department of Cardiology, University Medical Center Groningen, University of Groningen, The Netherlands 15 Institute, University Medical Center Groningen, University of Groningen, The Netherlands 28 Section of Cardiovascular

de Bakker, Paul

460

Signatures of selection in loci governing major colour patterns in Heliconius butterflies and related species  

E-Print Network [OSTI]

pigmentation [6-8]. Increasingly, the importance of cis-regulatory elements (CREs) as the “creative” force in evolution has assumed center stage [9,3]. The theoretical basis for this hypoth- esis is that every gene possesses a modular arrangement of 5’ CREs... on s At tr ibuti on L ic e ns e ( h tt p: // c re a ti ve c om m o ns.o r g/ li ce ns e s /b y/ 2.0 ), w hi ch p e rm i ts unr e s tr i ct e d use, di s tr i butio n, an d re p ro duct io n in a ny m e d ium, p ro v id e d t he or ig in a l w or k i s p ro p...

Wu, Grace C; Joron, Mathieu; Jiggins, Chris D

2010-11-29T23:59:59.000Z

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


461

E-Print Network 3.0 - adjacent genetic loci Sample Search Results  

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

NOT use a Punnett square ... Source: Prestwich, Ken - Biology Department, College of the Holy Cross Collection: Environmental Sciences and Ecology ; Biology and Medicine 2 Theor...

462

Identification of Root-knot Nematode Resistance Loci in Gossypium hirsutum Using Simple Sequence Repeats  

E-Print Network [OSTI]

, only 31 were polymorphic between the TX accessions and DP90. A bulked segregant analysis approach was used to test the 31 primer sets on the resistant and susceptible bulks of the F2 population but no polymorphisms were seen. However, analyses found...

Del Rio, Sonia Y

2013-04-10T23:59:59.000Z

463

Global Hypomethylation Identifies Loci Targeted for Hypermethylation in Head and Neck Cancer  

Science Journals Connector (OSTI)

...differed by tumor site (each Kruskal-Wallis, P 0.05). Also, LINE-1...000 permutations) with the Kruskal-Wallis or Mann-Whitney U test statistic...array CpG methylation (each Kruskal-Wallis, P 0.03) but not with other...

Graham M. Poage; E. Andres Houseman; Brock C. Christensen; Rondi A. Butler; Michele Avissar-Whiting; Michael D. McClean; Tim Waterboer; Michael Pawlita; Carmen J. Marsit; Karl T. Kelsey

2011-06-01T23:59:59.000Z

464

Global Hypomethylation Identifies Loci Targeted for Hypermethylation in Head and Neck Cancer  

Science Journals Connector (OSTI)

...differences (P = 0.0003, Kruskal-Wallis test). The queuine deficiencies...metastatic tumors (P = 0.0002, Kruskal-Wallis test). Queuine deficiency determination...differences (P = 0.0003, Kruskal-Wallis test). The queuine deficiencies...

Graham M. Poage; E. Andres Houseman; Brock C. Christensen; Rondi A. Butler; Michele Avissar-Whiting; Michael D. McClean; Tim Waterboer; Michael Pawlita; Carmen J. Marsit; Karl T. Kelsey

2011-06-01T23:59:59.000Z

465

Identification of Two Loci in Tomato Reveals Distinct Mechanisms for Salt Tolerance  

Science Journals Connector (OSTI)

...imbalance ( ). When salinity results from an excess of NaCl, homeostasis of not only Na...Potassium 7440-70-2 Calcium 7447-41-8 Lithium Chloride 7647-14-5 Sodium Chloride...Physiological Calcium metabolism Genes, Plant Lithium Chloride pharmacology Lycopersicon esculentum...

Omar Borsani; Jesus Cuartero; José A. Fernández; Victoriano Valpuesta; Miguel A. Botella

466

SATB1 tethers multiple gene loci to reprogram expression profile driving breast cancer metastasis  

E-Print Network [OSTI]

filament protein, vimentin (VIM) ; cell-ECM interactingITGB4 LAMC2 LMNA CDH2 FN VIM CDH11 BRMS1 CDH1 CTNNB CLDN1

Han, Hye-Jung; Kohwi, Yoshinori; Kohwi-Shigematsu, Terumi

2008-01-01T23:59:59.000Z

467

Volumetric Mammographic Density: Heritability and Association With Breast Cancer Susceptibility Loci  

E-Print Network [OSTI]

was estimated by fitting variance-component models as implemented in the Sequential Oligogenic Linkage Analysis Routines package (SOLAR, version 7.2.5.) (33,34). This approach is based on maximum likelihood estimation of a linear mixed-effects model... Cormack VA, Highnam RP, et al. Screen-film mammographic density and breast cancer risk: a comparison of the volumetric standard mammogram form and the interactive threshold measurement methods. Cancer Epidemiol Biomarkers Prev. 2010;19(2):418-428. 23...

Brand, Judith S.; Humphreys, Keith; Thompson, Deborah J.; Li, Jingmei; Eriksson, Mikael; Czene, Kamila

2014-09-15T23:59:59.000Z

468

Identification of Two Loci in Tomato Reveals Distinct Mechanisms for Salt Tolerance  

Science Journals Connector (OSTI)

...responses. Genetic screens have led to the isolation of several Arabidopsis...tomato salt-hypersensitive mutants led us to identify mechanisms required...Light provided by cool-white fluorescent bulbs was at 50 muE m2 sec1 with 16 hr...

Omar Borsani; Jesus Cuartero; José A. Fernández; Victoriano Valpuesta; Miguel A. Botella

469

Gene–Environment Interaction Involving Recently Identified Colorectal Cancer Susceptibility Loci  

Science Journals Connector (OSTI)

...NY, NC, ND, OH, OK, OR, PA, RI, SC, TN, TX, VA, WA, and WY. PLCO: The...lung datasets were accessed from the dbGaP website ( http://www.ncbi.nlm.nih.gov...Brenner H, Buchanan D, et alGenome-wide search for gene-gene interactions in colorectal...

Elizabeth D. Kantor; Carolyn M. Hutter; Jessica Minnier; Sonja I. Berndt; Hermann Brenner; Bette J. Caan; Peter T. Campbell; Christopher S. Carlson; Graham Casey; Andrew T. Chan; Jenny Chang-Claude; Stephen J. Chanock; Michelle Cotterchio; Mengmeng Du; David Duggan; Charles S. Fuchs; Edward L. Giovannucci; Jian Gong; Tabitha A. Harrison; Richard B. Hayes; Brian E. Henderson; Michael Hoffmeister; John L. Hopper; Mark A. Jenkins; Shuo Jiao; Laurence N. Kolonel; Loic Le Marchand; Mathieu Lemire; Jing Ma; Polly A. Newcomb; Heather M. Ochs-Balcom; Bethann M. Pflugeisen; John D. Potter; Anja Rudolph; Robert E. Schoen; Daniela Seminara; Martha L. Slattery; Deanna L. Stelling; Fridtjof Thomas; Mark Thornquist; Cornelia M. Ulrich; Greg S. Warnick; Brent W. Zanke; Ulrike Peters; Li Hsu; and Emily White

2014-09-01T23:59:59.000Z

470

Incipient speciation by sexual isolation in Drosophila: Concurrent evolution at multiple loci  

Science Journals Connector (OSTI)

...Biol 13 : 143 – 150 . 24 Johnson F M Kanapi C G Wheeler M R Stone W S ( 1966 ) Proc Natl Acad Sci USA 63 : 119 – 125 . 25 Futch D G ( 1966 ) Univ Texas Publ 6615 : 79 – 120 . 26 Dieckmann U Doebeli M ( 1999 ) Nature (London) 400 : 354 – 357 , 10432112...

Chau-Ti Ting; Aya Takahashi; Chung-I Wu

2001-01-01T23:59:59.000Z

471

Genome-wide association analysis identifies multiple loci related to resting heart rate  

E-Print Network [OSTI]

,46, Susan R. Heckbert10,13,47, Bruno H.Ch. Stricker1,2,3,40,54, , Eric Boerwinkle19 and Christopher J. O: +31 107044657; Email: b.stricker@erasmusmc.nl (B.H.Ch.S.); Framingham Heart Study, 73 Mt Wayte Avenue

de Bakker, Paul

472

Common variants at ten loci influence QT interval duration in the QTGEN Study  

E-Print Network [OSTI]

Hofman4,16, Susan R Heckbert9,12,17, Christopher J O'Donnell3,18,19, Andre´ G Uitterlinden4,8,16, Bruce M Psaty9,10,12,17,20, Thomas Lumley5,23, Martin G Larson3,7,23 & Bruno H Ch Stricker4,8,15,16,21,23 QT

de Bakker, Paul

473

Ordered Subset Analysis Identifies Loci Influencing Lung Cancer Risk on Chromosomes 6q and 12q  

Science Journals Connector (OSTI)

...environmental factors including tobacco smoke, radon gas, asbestos, arsenic, and some forms...American Cancer Society.; 2009. 2. International Agency for Research on Cancer (IARC...Islands Genetic African American Registry (Project SuGAR).Diabetes 2009;58(1...

Shenying Fang; Susan M. Pinney; Joan E. Bailey-Wilson; Mariza A. de Andrade; Yafang Li; Elena Kupert; Ming You; Ann G. Schwartz; Ping Yang; Marshall W. Anderson; and Christopher I. Amos

2010-12-01T23:59:59.000Z

474

A case for two late Proterozoic–earliest Cambrian faunal province loci  

Science Journals Connector (OSTI)

...trilobite faunas , the following sequence of events can be recognized. First, the Ediacar- an fauna appeared. The six benthic Edia- caran genera and Cloudina were restricted to P ro to -Gondwana , but medusoids and frondlike forms became cosmopoli tan...

475

Macrogeographic variation of nuclear microsatellite loci in an endangered species, Eumetopiias jubatus  

E-Print Network [OSTI]

no macrogeographic variation among populations. This difference in levels of nuclear and mitochondrial subdivision is reflected in estimates of nuclear gene flow. This pattern may result from high female philopatry combined with high male dispersal. Thus, male...

Trujillo, Robert Greg

2012-06-07T23:59:59.000Z

476

Two Genetic Loci Produce Distinct Carbohydrate-Rich Structural Components of the Pseudomonas aeruginosa Biofilm Matrix  

Science Journals Connector (OSTI)

...of the 11 psl genes: pslC (PA2233), pslD (PA2234), and pslF (PA2236). Flanking sequences of the predicted open reading...biosynthesis; pfam02706, Wzz, chain length determinant protein PA2236 pslF COG0438/pfam00534, RfaG, glycosyltransferase; PF00534...

Lisa Friedman; Roberto Kolter

2004-07-01T23:59:59.000Z

477

E-Print Network 3.0 - additional susceptibility loci Sample Search...  

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

Source: Nei, Masatoshi - Department of Biology, Pennsylvania State University Collection: Environmental Sciences and Ecology ; Biology and Medicine 2 The allelic architecture of...

478

Mutations at Several Loci Cause Increased Expression of Ribonucleotide Reductase in Escherichia coli  

Science Journals Connector (OSTI)

...provide more reductive power for RNR reduction...not required for restoration of growth to the...optimal reductive power to RNR. Since the...sufficient reducing power-for example, via...laboratory manual and handbook for Escherichia coli...the DNA replication system of Escherichia coli...

Morgan Anne Feeney; Na Ke; Jon Beckwith

2012-01-13T23:59:59.000Z

479

A phylogenetic study of four species of Lasiurus (Chiroptera: Vespertillionidae) using the ZFX/ZFY loci  

E-Print Network [OSTI]

, Cathey (1993) compared a mtDNA phylogeny of deer published by Carr et al. (1986) with a phylogeny based on sequence data from the Zfx and Zfy introns. Carr's cladogram grouped mule deer (Odocoileus hem)onus) with the white-tailed deer (O. virginianus... was sequenced, it was found that the nucleotide sequences differed by only 0. 75'%%d (two transversion and four transitions) between Odocoileus virginianus and O. hemionus. This low difference may simply be a result of the relatively recent divergence times...

Robertson, Stirling Joseph

2012-06-07T23:59:59.000Z

480

Prediction of carcass traits utilizing growth and feedlot performance  

E-Print Network [OSTI]

and weaning weight (WW) was recorded. The calves were placed on grass, and upon removal, yearling weight (YW) and days on grass (DOG) were noted. Actual gain on grass (GAING) and average daily gain on grass (ADGG) were calculated. The yearlings were shipped... found that the 3/4 Angus was statistically different from the 3/4 Brahman and the Fz breed types for ADGG (P = . 05). This was due to the 3/4 Angus having the higher gain on grass The average YW was 339. 04 kgs with a standard deviation of 51. 22 kgs...

Smith, John Berryman

2012-06-07T23:59:59.000Z

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


481

Monthly and seasonal variation of mohair growth and quality traits  

E-Print Network [OSTI]

of test for diameter wool and other fiber by microprojection. A. S. T. M. Standards 25:475. A. S. T. M. 1966. Resistance to air flow as an indication of average fiber diameter of wool top, card sliver, and scoured wool. 25:251. Bassett, J. W. 1966... of test for diameter wool and other fiber by microprojection. A. S. T. M. Standards 25:475. A. S. T. M. 1966. Resistance to air flow as an indication of average fiber diameter of wool top, card sliver, and scoured wool. 25:251. Bassett, J. W. 1966...

Portal, Enrique

2012-06-07T23:59:59.000Z

482

Mode of Inheritance of Primary Metabolic Traits in Tomato  

Science Journals Connector (OSTI)

...R. (2004). Maize selection passes the century mark: A unique resource for 21st century genomics. Trends Plant Sci. 9: 358-364...Review. Plant Cell Environ. 28: 2-20. Van Camp, W. (2005). Yield enhancement genes: Seeds...

Nicolas Schauer; Yaniv Semel; Ilse Balbo; Matthias Steinfath; Dirk Repsilber; Joachim Selbig; Tzili Pleban; Dani Zamir; Alisdair R. Fernie

2008-03-25T23:59:59.000Z

483

Social network architecture and the maintenance of deleterious cultural traits  

Science Journals Connector (OSTI)

...how much effort in time or energy they spend in making choices...this variation reduces the efficiency of the elimination process...effect of this decrease in the efficiency of elimination, we found only...http://stat.ripe.net/egypt/ . 11 Bailey, N. T. J...

2012-01-01T23:59:59.000Z

484

Ecological traits influencing range expansion across large oceanic dispersal  

E-Print Network [OSTI]

Section of Ichthyology, California Acadamy of Sciences, 55 Music Concourse Drive, Golden Gate Park, San. Successful establishment after crossing both barriers may be facilitated by broad environmental tolerance of the tropical Atlantic Ocean: the Central American Land Bridge, the Mid-Atlantic Barrier (MAB; the stretch

Bermingham, Eldredge

485

Mode of Inheritance of Primary Metabolic Traits in Tomato  

Science Journals Connector (OSTI)

...fruit quality in fresh market tomato: A few chromosome...Natl. Acad. Sci. USA 97: 4718-4723. Gilliland...Natl. Acad. Sci. USA 104: 4759-4764. Meyerowitz...Natl. Acad. Sci. USA 103: 12981-12986...Characterisation of energy metabolism during ontogenesis...

Nicolas Schauer; Yaniv Semel; Ilse Balbo; Matthias Steinfath; Dirk Repsilber; Joachim Selbig; Tzili Pleban; Dani Zamir; Alisdair R. Fernie

2008-03-25T23:59:59.000Z

486

Extreme polymorphism in a Y-linked sexually selected trait  

E-Print Network [OSTI]

-chromosome. Field surveys from 1999 to 2002 of nine populations in Guyana and Suriname, South America, indicate

487

Gene Discovery and Product Development for Grain Quality Traits  

Science Journals Connector (OSTI)

...Soybean seeds with altered ratios of seed storage proteins...a number of starches have been created...production in cereals such as wheat...altered ratios of seed storage proteins...a number of starches have been created...production in cereals such as wheat...

Barbara Mazur; Enno Krebbers; Scott Tingey

1999-07-16T23:59:59.000Z

488

The temporal relationship of personality traits to personality disorders  

E-Print Network [OSTI]

of personality disorders. With the publication of DSM-III, a separate and distinct axis was created to distinguish personality disorders from mental state disorders. This change was based on the assumption that disturbances in personality have a qualitatively... of the general criteria for a personality disorder, the DSM-IV (APA, 1994) states that "the pattern is stable and of long duration and its onset can be traced back to at least adolescence or early adulthood" (p. 633). Some past research on the topic has...

Warner, Megan Beth

2012-06-07T23:59:59.000Z

489

Mode of Inheritance of Primary Metabolic Traits in Tomato  

Science Journals Connector (OSTI)

...identification of the genetic bases underlying phenotypes identified in forward genetic screens (McCallum et al., 2000; Jansen and Nap...Database. Bioinformatics 21: 1635-1638. Kusano, M., Fukushima, A., Kobayashi, M., Hayashi, N., Jonsson, P., Moritz...

Nicolas Schauer; Yaniv Semel; Ilse Balbo; Matthias Steinfath; Dirk Repsilber; Joachim Selbig; Tzili Pleban; Dani Zamir; Alisdair R. Fernie

2008-03-25T23:59:59.000Z

490

Multi-Location Evaluation of Agronomic Traits in Maize Hybrids  

E-Print Network [OSTI]

of multiple environments representative to the target improvement area is the best way to determine the true potential of certain material. The objectives of this research were to: i) estimate the responses of hybrids to aflatoxin and their agronomic...

McKee, Michael 1982-

2012-12-12T23:59:59.000Z

491

Identifying trait clusters by linkage profiles: application in genetical genomics  

Science Journals Connector (OSTI)

......point, s.p., mapping or CIM), and reject when , are derived...the LOD score profiles with CIM, and then using those new profiles...processes, as determined by Gene Ontology (GO) annotations (see Supplementary...experimental results with Gene Ontology (GO) annotations show that......

Joshua N. Sampson; Steven G. Self

2008-04-01T23:59:59.000Z

492

LES TRAITS PERSANS SUR LES SCIENCES INDIENNES : MDECINE, ZOOLOGIE, ALCHIMIE  

E-Print Network [OSTI]

LES TRAIT�S PERSANS SUR LES SCIENCES INDIENNES : M�DECINE, ZOOLOGIE, ALCHIMIE Fabrizio Speziale persan n'a encore jamais fait l'objet d'une étude exhaustive. une analyse plus approfondie des sources montre qu'il serait en effet injustifié de définir le corpus de la littérature médicale indo-persane

Paris-Sud XI, Université de

493

ORIGINAL PAPER Ecophysiological traits of plant functional groups in forest  

E-Print Network [OSTI]

from eastern Amazo^nia, Brazil Tomas F. Domingues Ă? Luiz A. Martinelli Ă? James R. Ehleringer Received pathway species) showed high instantaneous water use efficiency (Amax/gs@Amax), high photosynthetic nitrogen use efficiency (Amax/Narea), and high ratio of Amax to dark respiration (Amax/Rd). Among

Ehleringer, Jim

494

ORIGINAL PAPER Genetic variation of natural durability traits in Eucalyptus  

E-Print Network [OSTI]

-treated wood in some of the world's main wine-producing countries. · Methods Stem diameter at breast height over- and under- bark, heartwood proportion, wood density, methanol extrac- tives and fungal decay were. · Discussion NIR was an effective predictor of methanol extractives, moderately effective for basic density

Paris-Sud XI, Université de

495

New handbook for standardised measurement of plant functional traits worldwide  

E-Print Network [OSTI]

. S Ecological Farming Systems, Agroscope Reckenholz Tänikon, Research Station ART, Reckenholzstrasse 191, 8046, University of Alaska Fairbanks, Fairbanks, AK 99775-7000, USA. F Systems Ecology, Faculty of Earth and Life Sciences, Department of Ecological Science, VU University, De Boelelaan 1085, 1081 HV Amsterdam

Sack, Lawren

496

Conduct Disorder and Callous–Unemotional Traits in Youth  

Science Journals Connector (OSTI)

...have begun to combine clinical and neurocognitive data in an attempt to predict outcome,– future prospective studies might do so more extensively, testing whether specific combinations of clinical and neurocognitive profiles identify subgroups with homogeneous outcomes. For children with long-term behavioral... Children with repetitive rule-breaking, aggression, and disregard for others are at increased risk for substance abuse, educational disruption, and criminal behavior. Progress is being made toward understanding the clinical and neurocognitive features of callous youth.

Blair R.J.R.Leibenluft E.Pine D.S.

2014-12-04T23:59:59.000Z

497

Adaptive trait Characteristics that improve an individual's survival and fitness.  

E-Print Network [OSTI]

and clays (usually) deposited by a stream or flowing water. Alluvial deposits may occur after a flood event heavier particles (gravel, boulders) rolled along the bottom; the part of the load and deepening of a stream channel to permit the water to move faster, to reduce flooding, or to drain wetlands

498

Evaluation of traits associated with bucking bull performance and behavior  

E-Print Network [OSTI]

aunt and uncle, Robert and Kim Romero, for all of their love and support during my academic career. vi NOMENCLATURE DAB Dataset ?All Bulls? DBG Dataset ?Bull Groups? DS Dataset ?Sires? DS1 Dataset ?Sires with more than 1 son................................................................................................................. 21 Average score................................................................................................ 22 Career average score ..................................................................................... 22 Datasets...

Romero, Natasha Elizabeth

2009-05-15T23:59:59.000Z

499

A genome-wide view of the spectrum of spontaneous mutations in yeast  

Science Journals Connector (OSTI)

...eukaryotic genome. Our analyses are based on an examination...sequenced genome) in these analyses, we only included loci...Some insight into the reliability of the ML...1998) Genetics and Analysis of Quantitative...high-density pico-litre reactors. Nature 437...

Michael Lynch; Way Sung; Krystalynne Morris; Nicole Coffey; Christian R. Landry; Erik B. Dopman; W. Joseph Dickinson; Kazufusa Okamoto; Shilpa Kulkarni; Daniel L. Hartl; W. Kelley Thomas

2008-01-01T23:59:59.000Z

500

Characterization of Nitrogen use efficiency in sweet sorghum  

SciTech Connect (OSTI)

Sweet sorghum (Sorghum bicolor L. Moench) has the potential to augment the increasing demand for alternative fuels and for the production of input efficient, environmentally friendly bioenergy crops. Nitrogen (N) and water availability are considered two of the major limiting factors in crop growth. Nitrogen fertilization accounts for about 40% of the total production cost in sorghum. In cereals, including sorghum, the nitrogen use efficiency (NUE) from fertilizer is approximately 33% of the amount applied. There is therefore extensive concern in relation to the N that is not used by the plant, which is lost by leaching of nitrate, denitrification from the soil, and loss of ammonia to the atmosphere, all of which can have deleterious environmental effects. To improve the potential of sweet sorghum as a leading and cost effective bioenergy crop, the enhancement of NUE must be addressed. To this end, we have identified a sorghum line (SanChi San) that displays about 25% increase in NUE over other sorghum lines. As such, the overarching goal of this project is to employ three complementary strategies to enhance the ability of sweet sorghum to become an efficient nitrogen user. To achieve the project goal, we will pursue the following specific objectives: Objective 1: Phenotypic characterization of SanChi San/Ck60 RILs under low and moderate N-availability including biochemical profiles, vegetative growth and seed yield Objective 2: Conduct quantitative trait loci (QTL) analysis and marker identification for nitrogen use efficiency (NUE) in a grain sorghum RIL population. Objective 3: Identify novel candidate genes for NUE using proteomic and gene expression profiling comparisons of high- and low-NUE RILs. Candidate genes will be brought into the pipeline for transgenic manipulation of NUE This project will apply the latest genomics resources to discover genes controlling NUE, one of the most complex and economically important traits in cereal crops. As a result of the completion of the proposed work, we will have: 1) identified novel alleles in wild sorghum germplasm that is useful to improve both cultivated grain and sweet sorghum; 2) been able to select individuals plants that exhibit high NUE within a breeding population on the basis of these markers; 3) acquired essential information necessary to examine the roles of GS and GOGAT, AlaT, along with impact of transcription factor Dof1, on N assimilation in sweet sorghum; and 4) The information learned will provide new opportunities for improving NUE in sorghum and other cereals.

Dweikat, Ismail [University of Nebraska; Clemente, Thomas [University of Nebrask

2014-09-09T23:59:59.000Z