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1

Valerie J. Zellmer  

NASA Website

Valerie J. Zellmer is Chief Financial Officer at NASA's Dryden Flight Research Center, Edwards, Calif. She was appointed to this position in December 2009 after having served as deputy chief financial officer since January 2003.

2

PanG, a New Ketopantoate Reductase Involved in Pantothenate Synthesis  

PubMed Central

Pantothenate, commonly referred to as vitamin B5, is an essential molecule in the metabolism of living organisms and forms the core of coenzyme A. Unlike humans, some bacteria and plants are capable of de novo biosynthesis of pantothenate, making this pathway a potential target for drug development. Francisella tularensis subsp. tularensis Schu S4 is a zoonotic bacterial pathogen that is able to synthesize pantothenate but is lacking the known ketopantoate reductase (KPR) genes, panE and ilvC, found in the canonical Escherichia coli pathway. Described herein is a gene encoding a novel KPR, for which we propose the name panG (FTT1388), which is conserved in all sequenced Francisella species and is the sole KPR in Schu S4. Homologs of this KPR are present in other pathogenic bacteria such as Enterococcus faecalis, Coxiella burnetii, and Clostridium difficile. Both the homologous gene from E. faecalis V583 (EF1861) and E. coli panE functionally complemented Francisella novicida lacking any KPR. Furthermore, panG from F. novicida can complement an E. coli KPR double mutant. A Schu S4 ?panG strain is a pantothenate auxotroph and was genetically and chemically complemented with panG in trans or with the addition of pantolactone. There was no virulence defect in the Schu S4 ?panG strain compared to the wild type in a mouse model of pneumonic tularemia. In summary, we characterized the pantothenate pathway in Francisella novicida and F. tularensis and identified an unknown and previously uncharacterized KPR that can convert 2-dehydropantoate to pantoate, PanG.

Miller, Cheryl N.; LoVullo, Eric D.; Kijek, Todd M.; Fuller, James R.; Brunton, Jason C.; Steele, Shaun P.; Taft-Benz, Sharon A.; Richardson, Anthony R.

2013-01-01

3

PanG, a new ketopantoate reductase involved in pantothenate synthesis.  

PubMed

Pantothenate, commonly referred to as vitamin B(5), is an essential molecule in the metabolism of living organisms and forms the core of coenzyme A. Unlike humans, some bacteria and plants are capable of de novo biosynthesis of pantothenate, making this pathway a potential target for drug development. Francisella tularensis subsp. tularensis Schu S4 is a zoonotic bacterial pathogen that is able to synthesize pantothenate but is lacking the known ketopantoate reductase (KPR) genes, panE and ilvC, found in the canonical Escherichia coli pathway. Described herein is a gene encoding a novel KPR, for which we propose the name panG (FTT1388), which is conserved in all sequenced Francisella species and is the sole KPR in Schu S4. Homologs of this KPR are present in other pathogenic bacteria such as Enterococcus faecalis, Coxiella burnetii, and Clostridium difficile. Both the homologous gene from E. faecalis V583 (EF1861) and E. coli panE functionally complemented Francisella novicida lacking any KPR. Furthermore, panG from F. novicida can complement an E. coli KPR double mutant. A Schu S4 ?panG strain is a pantothenate auxotroph and was genetically and chemically complemented with panG in trans or with the addition of pantolactone. There was no virulence defect in the Schu S4 ?panG strain compared to the wild type in a mouse model of pneumonic tularemia. In summary, we characterized the pantothenate pathway in Francisella novicida and F. tularensis and identified an unknown and previously uncharacterized KPR that can convert 2-dehydropantoate to pantoate, PanG. PMID:23243306

Miller, Cheryl N; LoVullo, Eric D; Kijek, Todd M; Fuller, James R; Brunton, Jason C; Steele, Shaun P; Taft-Benz, Sharon A; Richardson, Anthony R; Kawula, Thomas H

2012-12-14

4

Saccharification of cassava starch by Saccharomycopsis fibuligera YCY1 isolated from Loog-Pang (rice cake starter)  

Microsoft Academic Search

The main objectives of this study were to select amylolytic yeasts from Loog-Pang, a traditional starter culture for production of alcoholic foods and drinks in southern Thailand, and to optimize the saccharification of cassava starch to reducing sugar by the selected yeast isolate. Seventy-four yeast isolates were obtained from ten samples of Loog-Pang. The isolates were tested for amylolytic activity

Kraiyot Saelim; Yaowaluk Dissara; Aran H-Kittikun

5

An experimental study of the inhibition effect of Pang Qi Ju on influenza viruses  

Microsoft Academic Search

Summary  Pang Qi Ju (Alternanthera philoxeroides Griseb), a Chinese herb, used for the prevention and treatment of respiratory diseases,\\u000a was tested in this laboratory for its inhibitory effect on the growth of several virus strains in tissue culture and chick\\u000a embryos. It was found that its alcoholic infusions and tablets made of these infusions could inhibit the growth of several\\u000a virus

Deng Rui-lin; Zhu Jing-yu; Xu Hui-tang; Chen Xiu-zhu; Zhang Ren-jing; Liu Shen-juan; Xie Jian-min; Ye Si-ying

1984-01-01

6

Straight talk with...Valery Danilenko. Interviewed by Gary Peach.  

PubMed

Russian medicine is-at long last-undergoing a renaissance. The country's rocky economic ride following the collapse of the Soviet Union disrupted its research rubric and impoverished its healthcare system. Now, however, the nation's leadership is spearheading various initiatives to reverse the situation. One of them, the US-Russian Scientific Forum, established two years ago by a bilateral presidential commission, hopes to bring improvements by facilitating public-private research in biomedicine and innovative drugs. The Forum, which on the Russian side is represented by the country's Ministry of Health and Social Development and the Russian Academy of Sciences, among others, held its inaugural planning meeting in late April in Moscow. Valery Danilenko, who is helping to spearhead the effort and also leads the biotechnology division at the Vavilov Institute of General Genetics in Moscow, told Nature Medicine about the meeting and Russia's hopes for the Forum. The interview was conducted in Russian and translated by the interviewer, Gary Peach. PMID:21738143

Danilenko, Valery

2011-07-07

7

Assessment of Impact of Insecticides on Anagrus nilaparvatae (Pang et Wang) (Hymenoptera: Mymanidae), an Egg Parasitoid of the Rice Planthopper, Nilaparvata lugens (Hemiptera: Delphacidae)  

Technology Transfer Automated Retrieval System (TEKTRAN)

The parasitoid Anagrus Nilaparvatae (Pang et Wang) (Hymenoptera: Mymanidae) is a major natural enemy of the rice planthopper Nilaparvata lugens (Hemiptera: Delphacidae). It plays an important role in the IPM of the rice planthopper. Contact and oral toxicity and residual effect of fourteen pesticide...

8

Valerie F. Reyna  

Center for Biologics Evaluation and Research (CBER)

Text Version... information? ? Fuzzy Trace Theory incorporates prior ... counterintuitive predictions ? Distinguishes gist (the fuzzy traces in ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

9

Curriculum Vitae: Valerie Montgomery Rice  

Center for Biologics Evaluation and Research (CBER)

Text Version... 2011- Information Technology Advisory Committee ... 2003 Assisted Reproductive Technologies to first ... Health, Hormones, Happiness, Johns Hopkins ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

10

Valerie L. Durkalski-Mauldin Curriculum Vitae  

Center for Biologics Evaluation and Research (CBER)

Text Version... comparison with standard colonoscopy for detection of polyps/masses in ... Durkalski V. “Virtual Colonoscopy: The Reality of Colon Polyp and Colon ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

11

????????????????????????????????????????????????????? Screening of Starch Hydrolysis Fungi from Look-pang ?????? ???????* ??? ???????? ????????  

Microsoft Academic Search

Isolation of fungi from ten sources of Lookpang includings Lookpang of Ampur Chompra Surin province, Ampur Tha-toom Surin province, Petchburi province, Ayutthaya province, Tumbon Kangsanamnang Nakornrachasima province, Roi-Ed province, Ampur Muang Roi-Ed province, Ampur Saylapoom Roi-Ed province, Ampur Muang Prae province and Ubonrachathani province for selection the highest starch hydrolytic activity. Thirty six fungi were isolated. ADM1 coded Fungi which

Suphaporn Phongmanee; Pantipa Nuamkhuntod

12

Streamflow generation in the Pang and Lambourn catchments, Berkshire, UK  

Microsoft Academic Search

This paper presents findings from a comprehensive field campaign of stream flow measurement in two Chalk catchments in Berkshire (UK). The measurements were taken in order to characterise the spatial and temporal dynamics of groundwater surface water interaction within the area, and facilitate a better understanding of underlying processes with the aid of supporting groundwater and water-chemistry data. Long-term streamflow

J. Griffiths; A. Binley; N. Crook; J. Nutter; A. Young; S. Fletcher

2006-01-01

13

The birth pangs of monoclonal antibody therapeutics: the failure and legacy of Centoxin.  

PubMed

This paper examines the development and termination of nebacumab (Centoxin®), a human IgM monoclonal antibody (mAb) drug frequently cited as one of the notable failures of the early biopharmaceutical industry. The non-approval of Centoxin in the United States in 1992 generated major concerns at the time about the future viability of any mAb therapeutics. For Centocor, the biotechnology company that developed Centoxin, the drug posed formidable challenges in terms of safety, clinical efficacy, patient selection, the overall economic costs of health care, as well as financial backing. Indeed, Centocor's development of the drug brought it to the brink of bankruptcy. This article shows how many of the experiences learned with Centoxin paved the way for the current successes in therapeutic mAb development. PMID:22531443

Marks, Lara

2012-04-26

14

PanG, a new ketopantoate reductase involved in pantothenate synthesis  

Technology Transfer Automated Retrieval System (TEKTRAN)

Pantothenate, commonly referred to as vitamin B5, is an essential molecule in the metabolism of living organisms and forms the core of coenzyme A. Unlike humans, some bacteria and plants are capable of de novo biosynthesis of pantothenate making this pathway a potential target for drug development. ...

15

Hunger Pangs: Transference and Countertransference in the Treatment of Foster Children  

Microsoft Academic Search

In working with children, clinicians are often confronted with physical as well as psychological hunger—demands for real along with symbolic feeding. Foster children, who have suffered actual neglect and deprivation, often stir powerful and primitive feelings about the place and importance of the “real” and the symbolic in psychotherapy. These parentless children explicitly and implicitly announce that they need a

Toni Vaughn Heineman

2001-01-01

16

The birth of Emerging Themes in Epidemiology: a tale of Valerie, causality and epidemiology  

Microsoft Academic Search

Emerging Themes in Epidemiology (ETE) is a new, online, Open Access peer-reviewed journal. The Journal is unique in that it was conceived and is managed by research degree students in epidemiology and related public health fields. The Journal's management is overseen by its Editor-in-Chief and Associate Faculty Editors, all of whom are senior members of faculty. ETE aims to encourage

Clarence C Tam

2004-01-01

17

75 FR 17832 - Proposed Information Collection (VA Loan Electronic Reporting Interface (VALERI) System) Activity...  

Federal Register 2010, 2011, 2012, 2013

...proposed collection of information, including each proposed...notice solicits comments for information needed to oversee loan holders processing of loan guaranty homes...proposed collection of information should be received on...

2010-04-07

18

78 FR 36642 - Proposed Information Collection (VA Loan Electronic Reporting Interface (VALERI) System) Activity...  

Federal Register 2010, 2011, 2012, 2013

...proposed collection of information, including each proposed...notice solicits comments for information needed to oversee loan holders processing of loan guaranty homes...proposed collection of information should be received on...

2013-06-18

19

The birth of Emerging Themes in Epidemiology: a tale of Valerie, causality and epidemiology  

PubMed Central

Emerging Themes in Epidemiology (ETE) is a new, online, Open Access peer-reviewed journal. The Journal is unique in that it was conceived and is managed by research degree students in epidemiology and related public health fields. The Journal's management is overseen by its Editor-in-Chief and Associate Faculty Editors, all of whom are senior members of faculty. ETE aims to encourage debate and discussion on the theoretical, methodological and practical aspects of epidemiologic research and practice. In addition, ETE is dedicated to the promotion of Open Access publication and the training of research students in the scientific publishing process. This editorial, to coincide with the launch of ETE, sets out the Journal's philosophy and aims. Epidemiology is a rich and innovative science that has much to gain from broader discussion of the causal frameworks that underpin it. ETE aims to be a major forum for such discussion.

Tam, Clarence C

2004-01-01

20

Up Front with Valerie and Joe: Fair Game and Other Stories of Reprisal  

ERIC Educational Resources Information Center

|The movie "Fair Game" (Butterworth et al., 2010) is a fact-based political thriller that calls attention to a process of turning respectable members of established institutions, who are performing their roles properly, into excluded deviants. The result of this transformation may be the creation of a new group initiating its own subculture. The…

Beck, Bernard

2011-01-01

21

Energy book: a look at the death throes of one energy era and the birth pangs of another  

SciTech Connect

Many commentators believe that by the year 2000 fossil fuels will be gone and Americans will freeze to death - in the dark. But this essentially optimistic book puts the problems and the possibilities into clearer perspective. Written by Massachusetts Audubon Society scientists and editors and other concerned environmentalists, this book first presents the history of energy from wood through coal, oil, gas, nuclear, and solar. It examines the renaissance of solar energy - perhaps the prime source of energy for the future - whose foundations go back to 1600 when Western scientists used the sun to power engines. Commenting on the end of the fossil fuel era and the end of cheap energy, it considers bicycle power, wind energy, and hydro power. The book probes the pros and cons of nuclear power and presents the results of local action in one Massachusetts county. Two photo essays show the world of a fossil-fuel economy and an alternate landscape of a society fueled by renewable resources. 45 references.

Hanley, W.; Mitchell, J. (eds.)

1980-01-01

22

Energy book: a look at the death throes of one energy era and the birth pangs of another  

Microsoft Academic Search

Many commentators believe that by the year 2000 fossil fuels will be gone and Americans will freeze to death - in the dark. But this essentially optimistic book puts the problems and the possibilities into clearer perspective. Written by Massachusetts Audubon Society scientists and editors and other concerned environmentalists, this book first presents the history of energy from wood through

W. Hanley; J. Mitchell

1980-01-01

23

78 FR 52230 - Government/Industry Aeronautical Charting Forum Meeting  

Federal Register 2010, 2011, 2012, 2013

...the Charting Group, contact Valerie S. Watson, FAA, National Aeronautical Navigation...301) 427-5155; Email: valerie.s.watson@faa.gov. SUPPLEMENTARY INFORMATION...DC, on August 15, 2013. Valerie S. Watson, Co-Chair, Aeronautical Charting...

2013-08-22

24

77 FR 50759 - Government/Industry Aeronautical Charting Forum Meeting  

Federal Register 2010, 2011, 2012, 2013

...the Charting Group, contact Valerie S. Watson, FAA, National Aeronautical Navigation...301) 427-5412; Email: valerie.s.watson@faa.gov. SUPPLEMENTARY INFORMATION...DC, on August 14, 2012. Valerie S. Watson, Co-Chair, Aeronautical Charting...

2012-08-22

25

“Forget birth pains, we haven't got past the conception stage yet”. A reply to Frank Coffield's ‘Britain's continuing failure to train: the birth pangs of a new policy’  

Microsoft Academic Search

This article is a response to Frank Coffield's recent reflections in this journal on the Performance and Innovation Unit's project on workforce development in Britain. It questions the extent to which the PIU's findings represent a ‘new understanding’ of the UK's skills problem and asks why academics have been so reluctant to spell out what a demand?side strategy for tackling

Caroline Lloyd; Jonathan Payne

2003-01-01

26

IN THE CIRCUIT COURT FOR  

Center for Biologics Evaluation and Research (CBER)

Text Version... Washington, District of Colombia Valerie Montgomery Rice, MD 9 10 11 12 13 14 15 16 ... Introduction of Committee Valerie Montgomery Rice, MD 16 ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

27

Summary Minutes of the  

Center for Biologics Evaluation and Research (CBER)

Text Version... Kalyani Bhatt Valerie Montgomery Rice, MD ... The meeting was called to order by Valerie Montgomery Rice, MD (Acting Chairperson). ... More results from www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials

28

77 FR 13683 - Government/Industry Aeronautical Charting Forum Meeting  

Federal Register 2010, 2011, 2012, 2013

...information relating to the Charting Group, contact Valerie S. Watson, FAA, National Aeronautical Navigation Products (AeroNav...Issued in Washington, DC, on February 28, 2012. Valerie S. Watson, Co-Chair, Aeronautical Charting Forum. [FR Doc....

2012-03-07

29

77 FR 17104 - Government/Industry Aeronautical Charting Forum Meeting: Correction  

Federal Register 2010, 2011, 2012, 2013

...information relating to the Charting Group, contact Valerie S. Watson, FAA, National Aeronautical Navigation Products (AeroNav...Issued in Washington, DC, on March 19, 2012. Valerie S. Watson, Co-Chair, Aeronautical Charting Forum. [FR Doc....

2012-03-23

30

78 FR 12415 - Government/Industry Aeronautical Charting Forum Meeting  

Federal Register 2010, 2011, 2012, 2013

...information relating to the Charting Group, contact Valerie S. Watson, FAA, National Aeronautical Navigation Products (AeroNav...Issued in Washington, DC, on February 19, 2013. Valerie S. Watson, Co-Chair, Aeronautical Charting Forum. [FR Doc....

2013-02-22

31

75 FR 26714 - Proposed Information Collection; Comment Request; Application for Designation of a Fair  

Federal Register 2010, 2011, 2012, 2013

...collection instrument and instructions should be directed to Valerie Barnes, Office of Global Trade Programs, International Trade Administration...202) 482-3955, Fax: (202) 482-7800, Valerie.Barnes@trade.gov. SUPPLEMENTARY INFORMATION: I. Abstract...

2010-05-12

32

Occurrence of Split Cord Malformation in Meningomyelocele: Complex Spina bifida  

Microsoft Academic Search

Objective: To describe the clinical features and surgical outcome of a combined anomaly, i.e. split cord malformation (SCM) with meningomyelocele (MMC), and to propose an addition to Pang’s classification of SCM to accommodate a combined form of anomaly. Methods: We retrospectively analyzed 16 cases of such a combination, out of a total of 106 cases of spinal dysraphism treated and

Raj Kumar; Krishan Kumar Bansal; Devendra Kumar Chhabra

2002-01-01

33

The Learning Principal[R]. Volume 4, Number 8  

ERIC Educational Resources Information Center

|"The Learning Principal" is an eight-page newsletter published eight times a year. It focuses on the important and unique work of school principals. This issue includes: (1) Efficacy Can Overcome Classroom Barriers (Valerie von Frank); (2) Q & A: Leadership, Learning Communities Change School Culture (Valerie von Frank); (3) Focus on NSDC's…

von Frank, Valerie, Ed.

2009-01-01

34

Photoassimilation of Fatty Acids, Fatty Alcohols and Sugars by Euglena gracilis Z  

Microsoft Academic Search

Assimilation of fatty acids, fatty alcohols and sugars by Euglena gracilis Z was investigated with or without illumination. Propionate, butyrate, valeriate, hexanoate, myristate, palmitate, ethanol, propanol, lauryl alcohol, tridecanol and myristyl alcohol supported considerable growth. The assimilation of propionate, valeriate, palmitate, butanol, lauryl alcohol and myristyl alcohol were strictly light-dependent. The photoassimilation of myristyl alcohol was saturated by lower light

KEISUKE HOSOTANI; T AKATOSHI OHKOCHI; HIROSHI INUI; AKIHO YOKOTA; Y. NAKANO; S. KITAOKA

1988-01-01

35

Designing robots for long-term social interaction  

Microsoft Academic Search

Valerie the roboceptionist is the most recent addition to Carnegie Mellon's social robots project. A permanent installation in the entranceway to Newell-Simon hall, the robot combines useful functionality - giving directions, looking up weather forecasts, etc. - with an interesting and compelling character. We are using Valerie to investigate human-robot social interaction, especially long-term human-robot \\

Rachel Gockley; Allison Bruce; Jodi Forlizzi; Marek Michalowski; Anne Mundell; Stephanie Rosenthal; Brennan Sellner; Reid Simmons; Kevin Snipes; Alan C. Schultz

2005-01-01

36

Enhanced Feature Selection and Generation for 802.11 User Identification  

Microsoft Academic Search

To provide user privacy, several anonymization techniques (e.g., pseudonyms applied to MAC addresses) have been proposed in 802.11 networks. However, recent research done by Pang et al. has demonstrated that pseudonyms are not adequate to protect user privacy. The key idea of Pang et al.'s method is to locate implicit identifiers (e.g., IP addresses and port numbers a user frequently

Dingbang Xu; Yu Wang; Xinghua Shi

2009-01-01

37

Forests in Flux  

NSDL National Science Digital Library

In this video presentation, Jerry Franklin, Review author Gordon Bonan, and Perspective author Valerie Kapos discuss the importance of understanding the influence of forests on climate and some of the challenges of global forest governance.

Robert Frederick (AAAS;)

2008-06-13

38

Thinking About Inducing Your Labor: A Guide for Pregnant Women  

MedlinePLUS

... The Agency for Healthcare Research and Quality (AHRQ) created the Eisenberg Center at Oregon Health & Science University to make research helpful for consumers. This guide was written by Amanda Risser, M.D., Valerie King, ...

39

78 FR 7438 - Center for Scientific Review; Notice of Closed Meetings  

Federal Register 2010, 2011, 2012, 2013

...to 5:00 p.m. Agenda: To review and evaluate grant applications. Place: Sheraton Delfina Santa Monica Hotel, 530 West Pico Boulevard, Santa Monica, CA 90405. Contact Person: Valerie Durrant, Ph.D., Scientific Review Officer, Center for...

2013-02-01

40

Letter to Vaccine Manufacturers Regarding Plans for ...  

Center for Biologics Evaluation and Research (CBER)

... We request that you submit the information requested above within 45 days to the attention of Ms. Valerie Vashio, HFM-475. ... More results from www.fda.gov/biologicsbloodvaccines/safetyavailability

41

November 18, 2011: Presentations  

Center for Biologics Evaluation and Research (CBER)

... Introduction and Overview - Ellen Peters (PDF - 270KB); Communicating the Gist of Risky Decisions - Valerie Reyna (PDF - 963KB); ... More results from www.fda.gov/advisorycommittees/committeesmeetingmaterials/riskcommunicationadvisorycommittee

42

75 FR 43059 - Mandatory Reliability Standards for the Calculation of Available Transfer Capability, Capacity...  

Federal Register 2010, 2011, 2012, 2013

...Reliability, Federal Energy Regulatory Commission, 888 First Street, NE., Washington, DC 20426. (202) 502-6403. Valerie Roth (Technical Information), Office of Energy Policy Innovations, Federal Energy Regulatory Commission, 888 First Street,...

2010-07-23

43

76 FR 20651 - Application To Export Electric Energy; Cargill Power Markets, LLC  

Federal Register 2010, 2011, 2012, 2013

...Application To Export Electric Energy; Cargill Power Markets, LLC AGENCY: Office of...SUMMARY: Cargill Power Markets, LLC (CPM) has applied...Valerie L. Ege, Compliance Manager, Cargill Power Markets, LLC, 9350 Excelsior...

2011-04-13

44

78 FR 26867 - Quarterly Publication of Individuals, Who Have Chosen To Expatriate  

Federal Register 2010, 2011, 2012, 2013

...WAYNE NEAL JANE VALERIE NEITHARDT-HOWARD HELEN CLAIR NESTERENKO MICHAEL DOMINIQUE NORRIS...MAGDALENA THOMAS STEPHEN SIDNEY THOMMEN DOROTHY HELEN THOMPSON, JR. BARRY DELTON THURNHERR...HERTSEN ISABELLE MARIE VANDEN-BERGHE HELEN ANN VERNER JAMES AUGUSTINE VOGEL...

2013-05-08

45

1/14/2008 Telecon - Seraclone Blood Grouping Reagent Anti ...  

Center for Biologics Evaluation and Research (CBER)

... Memorandum. Date/Time: January 14, 2008 / 3:20 PM. CBER Representatives: Najma Khan, CSO, DRB Valerie Coleman, CSO, DRB. ... More results from www.fda.gov/biologicsbloodvaccines/bloodbloodproducts/approvedproducts

46

Designing Robots for Long-Term Social Interaction  

Microsoft Academic Search

Valerie the Roboceptionist is the most recent ad- dition to Carnegie Mellon's Social Robots Project. A perma- nent installation in the entranceway to Newell-Simon Hall, the robot combines useful functionality—giving directions, looking up weather forecasts, etc.—with an interesting and compelling character. We are using Valerie to investigate human-robot social interaction, especially long-term human-robot \\

Rachel Gockley; Allison Bruce; Jodi Forlizzi; Marek Michalowski; Anne Mundell; Stephanie Rosenthal; Brennan Sellner; Reid Simmons; Kevin Snipes; Alan C. Schultz; Jue Wang

2004-01-01

47

An assessment of the use of characteristic drying curves for the high-temperature drying of softwood timber  

SciTech Connect

An explicit assessment has been carried out, using the experimental data of Pang (1994), of the applicability of the concept of a characteristic drying curve to the drying of Pinus radiata softwood timber. This concept has been used recently by Pang and Keey (1994) and Nijdam and Keey (1996) when investigating the expected drying behavior of a complete stack of timber. The concept appears to be applicable over the range of wet-bulb depressions which are common inside the stacks of timber, supporting its use in kiln-wide analysis of frying behavior.

Langrish, T.A.G. [Univ. of Sydney, New South Wales (Australia). Dept. of Chemical Engineering

1999-04-01

48

Sense and Sensibility  

Microsoft Academic Search

Two sisters of opposing temperament but who share the pangs of tragic love provide the subjects for Sense and Sensibility. Elinor, practical and conventional, the epitome of sense, desires a man who is promised to another woman. Marianne, emotional and sentimental, the epitome of sensibility, loses her heart to a scoundrel who jilts her. True love finally triumphs when sense

Jane Austen

2005-01-01

49

Sentiment classification with interpolated information diffusion kernels  

Microsoft Academic Search

Information diffusion kernels - similarity metrics in non-Euclidean information spaces - have been found to produce state of the art results for document classification. In this paper, we present a novel approach to global sentiment classification using these kernels. We carry out a large array of experiments addressing the well-known movie review data set of Pang and Lee, a de

Stephan Raaijmakers

2007-01-01

50

TESL Reporter, Vol. 3, Nos. 1-4.  

ERIC Educational Resources Information Center

Four issues of "TESL Reporter" are presented. Contents include the following articles: "Feedback: An Anti-Madeirization Compound" by Henry M. Schaafsma; "Using the Personal Pronoun 'I' as a Compound Subject" by G. Pang and D. Chu; "The Consonant'L' in Initial and Final Positions" by Maybelle Chong; "Sentence Expansion for the Elementary Level" by…

Pack, Alice C., Ed.

51

A Novel Method for the Establishment of a Pure Population of Nontransformed Human Intestinal Primary Epithelial Cell (HIPEC) Lines in Long Term Culture  

Microsoft Academic Search

A novel method for generating nontransformed human intestinal primary epithelial cell (HIPEC) lines in an in vitro culture system is reported here. Although several groups have reported the development of nontransformed intestinal epithelial cells (IEC) lines (Deveney et al, 1996; Latella et al, 1996; Pang et al, 1996; Perreault and Beaulieu, 1998), it still had been difficult to find an

Asit Panja

2000-01-01

52

Bodies of emotion: rethinking culture and emotion through Southeast Asia  

Microsoft Academic Search

motion has represented a tantalizing subject for social scientific inquiry because it appears to tell us about our true selves; the self that, after all the thinking and interacting are done, feels the welling-up of rage, the tender pangs of love, the black emptiness of despair. Invoking methodological individualism, our phrasing here frames emotions as the property of persons, and

Tom Boellstorff; Johan Lindquist

2004-01-01

53

Channel head locations with respect to geomorphologic thresholds derived from a digital elevation model: A case study in northern Thailand  

Microsoft Academic Search

The shape of a catchment is controlled by the interplay of different erosion processes acting within the catchment. It is therefore possible to assess dominant erosion processes, and geomorphologic thresholds that spatially separate those processes, by evaluating catchment form. In this paper, geomorphologic thresholds are detected in a digital elevation model of the Pang Khum Experimental Watershed in northern Thailand

James P. McNamara; Alan D. Ziegler; Spencer H. Wood; John B. Vogler

2006-01-01

54

A semi-smooth Newton method for elasto-plastic contact problems  

Microsoft Academic Search

In this paper we reformulate the frictional contact problem for elasto-plastic bodies as a set of unconstrained, non-smooth equations. The equations are semi-smooth so that Pang's Newton method for B-differentiable equations can be applied. An algorithm based on this method is described in detail. An example demonstrating the efficiency of the algorithm is presented.

Peter W. Christensen

2002-01-01

55

Menace of Undesirables: The Eugenics Movement During the Progressive Era  

Microsoft Academic Search

th century had produced industrial misery, class polarization, and urban distress. Americans, experiencing the social inequities of the post-Civil War period and the pangs of depression during the 1890's, enthusiastically embraced movements for reform to help alleviate the injustices and suffering. Originally, progressive reformers sought to regulate irresponsible corporate monopoly, safeguarding consumers and labor from the excesses of the profit

Ted L. DeCorte

56

802.11 User Anonymization  

Microsoft Academic Search

Privacy issues have been a serious concern for 802.11 Wireless LAN users. As demonstrated by Pang et al. and Xu et al., applying pseudonym techniques does not completely protect users' privacy. In particular, users' identities can be disclosed through implicit identifiers such as the IP addresses and port numbers users often access. In this paper, we study how to improve

Dingbang Xu; Yu Wang; Xinghua Shi; Xiaohang Yin

2010-01-01

57

Human Performance Enhancement for NATO Military Operations (Science, Technology and Ethics) (Amelioration des performances humaines dans les operations militaires de l'OTAN (Science, Technologie et Ethique)). RTO Human Factors and Medicine Panel (HFM) Symposium held in Sofia, Bulgaria, on 5-7 October 2009.  

National Technical Information Service (NTIS)

HFM-181 Symposium on Human Performance Enhancement for NATO Military Operations (Science, Technology and Ethics) was held in Sofia, Bulgaria from 5 through 7 October. The Chairs of the meeting were Col. Karl Friedl (USA) and Dr. Pang Shek (CAN). Participa...

2009-01-01

58

Patterns of Habitation and Burial Activity in the Ban Rai Rock Shelter, Northwestern Thailand  

Microsoft Academic Search

The excavation of the Ban Rai rock shelter reported here is part of the Highland Archaeology Project, which is investigating cultural chronology and palaeoenvironment in the district of Pang Mapha in northwestern Thailand (Shoocongdej 2000, 2001, 2002a, 2002b ). The site had been surveyed and studied by a number of researchers previously (Fine Arts Department 1987; Krajaechan 2001; Sawatsalee 1998;

Cherdsak Treerayapiwat

2005-01-01

59

75 FR 74605 - Thanksgiving Day, 2010  

Federal Register 2010, 2011, 2012, 2013

...first Thanksgiving in America, recounting the blessings...our young country. In the dark days of the...lay down their lives in our defense, and...experiencing the pangs of hunger or the hardship of...meal, let us rejoice in the abundance that...the United States of America, by virtue of...

2010-12-01

60

TESL Reporter, Vol. 3, Nos. 1-4.  

ERIC Educational Resources Information Center

|Four issues of "TESL Reporter" are presented. Contents include the following articles: "Feedback: An Anti-Madeirization Compound" by Henry M. Schaafsma; "Using the Personal Pronoun 'I' as a Compound Subject" by G. Pang and D. Chu; "The Consonant'L' in Initial and Final Positions" by Maybelle Chong; "Sentence Expansion for the Elementary Level" by…

Pack, Alice C., Ed.

61

Infants and Toddlers: Discovering and Exploring the Outdoors  

ERIC Educational Resources Information Center

|Babies' interest in the outer world develops very slowly. During the first half year or so, babies are strongly tuned in to themselves. They feel hunger pangs when they need to be fed. Their skin is fragile, and they need help maintaining their body temperature in cold weather. This article discusses outside interests, safe exploration, animal…

Honig, Alice Sterling

2005-01-01

62

TEACHER DEVELOPMENT THROUGH LESSON STUDY - BENEFITS AND PITFALLS  

Microsoft Academic Search

In recent years, there has been a feeling that effective teachers can be fostered through grounding professional development in actual classroom practice. A number of Japanese, American and Hong Kong educators (e.g. Chokshi & Fernandez, 2005; Lewis & Tsuchida, 1998; Lo, Chik & Pang, 2006; Lo, et al., 2002; Stewart & Brendefur, 2005; Stigler & Hiebert, 1999) have suggested adopting

Jackie F. K. Lee

2006-01-01

63

Are babies consumer durables? A Critique of the Economic Theory of Reproductive Motivation * The research discussed is supported by a grant from The Equitable Life Assurance Society to International Population and Urban Research, Institute of International Studies, University of California, Berkeley. The author wishes to thank Kingsley Davis for his advice and criticism, and Valerie Caires, Katherine Carter and Barbara Heyns for their assistance in processing the studies involved in this analysis. The report is also indebted to General Research Support Grant of the National Institutes of Health (1501-TR-544104) for assistance to Statistical Services, School of Public Health.  

PubMed

Abstract Never before have couples been able to control so effectively the number of children they will have. Although involuntary factors still affect family size, continuing advances in contraceptive techniques make deliberate choice an ever more important determinant of fertility. But what factors determine the size of family people will choose ? One type of answer advanced in recent years by Gary Becker views reproductive performance simply as economic behaviour. Couples, he believes, desire fewer children when poor, more when rich. PMID:22077563

Blake, J

1968-03-01

64

APS Forum on Education Summer 2006 Newsletter  

NSDL National Science Digital Library

The APS Forum on Education (FEd) Summer 2006 Newsletter's Teacher Preparation Section articles included:The Learning Assistant Model for Teacher Education in Science and Technology by Valerie Otero,Undergraduate Learning Assistants at the University of Arkansas by Gay Stewart, andCreating and Sustaining a Teaching and Learning Professional Community at Seattle Pacific University by Lane Seeley and Stamatis Vokos.

2007-09-07

65

Celebrating the Faces of Literacy. The Twenty-Fourth Yearbook: A Peer Reviewed Publication of the College Reading Association, 2002. [Papers from the College Reading Association Conference, 2001].  

ERIC Educational Resources Information Center

|The College Reading Association believes and values literacy education for all as one way to protect people's freedoms. This 24th Yearbook celebrates the varied "faces" of literacy. The yearbook contains the following special articles: (Presidential Address) "What Is Johnny Reading? A Research Update" (Maria Valerie Gold); (Keynote Addresses)…

Linder, Patricia E., Ed.; Sampson, Mary Beth, Ed.; Dugan, Jo Ann R., Ed.; Brancato, Barrie, Ed.

66

Cultural Preservation ReconsideredThe case of Canadian aboriginal art  

Microsoft Academic Search

Hybrid art forms are emerging more than ever now that advances in global communication link the world’s societies. James Clifford, Trinh T. MinhHa, Valerie Dominguez and other eminent scholars champion such hybrid culture. They argue that it leads to greater acceptance of others and otherness, and destroys notions of ‘others’ as aesthetically unsophisticated. While there is merit in such claims,

B. R. Sharma

1999-01-01

67

Teachers Teaching Teachers (T3)[TM]. Volume 4, Number 6  

ERIC Educational Resources Information Center

|"Teachers Teaching Teachers" ("T3") focuses on coaches' roles in the professional development of teachers. Each issue also explores the challenges and rewards that teacher leaders encounter. This issue includes: (1) Values and Clarity Build Classroom Language (Valerie von Frank); (2) Tools: Identifying and Clarifying Beliefs about Learning; (3)…

von Frank, Valerie, Ed.

2009-01-01

68

Statistics Glossary: Design of Experiments & ANOVA  

NSDL National Science Digital Library

This site, created by authors Valerie Eastor and John H. McColl, lists definitions of key terms related to experimental design and ANOVA. Some of these include factorial, blocking, interaction, experimental design, treatment, variance testing, placebo, and many others. This site is part of the "Statistics Glossary" for the STEPS project (Statistical Education through Problem Solving).

Mccoll, John H.; Eastor, Valerie

2008-12-12

69

Strange Imports: Working-Class Appalachian Women in the Composition Classroom  

ERIC Educational Resources Information Center

|Valerie Miner muses in "Writing and Teaching with Class:" "I've always carried that Miner suspicion that laboring with words is not real work . . . Should I be doing something useful?" (1993, 74). If working-class academics face uneasy negotiations between their disciplines and their home cultures, which may include deployment of regional…

Fedukovich, Casie

2009-01-01

70

Post-Thaw Storage of 4C of Previously Frozen Red Cells with Retention of 2,3-DPG,  

National Technical Information Service (NTIS)

Fresh human blood was collected in CPD, frozen by either the Meryman or the Valeri high glycerol technique, and stored at -80 deg C. Later the red cells were thawed, deglycerolized by the appropriate technique and resuspended in either saline-glucose wash...

G. L. Moore M. E. Ledford P. J. Mathewson D. J. Hankins S. B. Shah

1987-01-01

71

Reforming Chicago's High Schools: Research Perspectives on School and System Level Change.  

ERIC Educational Resources Information Center

This collection of papers describes research on school and system level change in Chicago's high schools. Papers include "Introduction: Setting Chicago High School Reform within the National Context" (Valerie E. Lee); (1) "The Effort to Redesign Chicago High Schools: Effects on Schools and Achievement" (G. Alfred Hess, Jr. and Solomon Cytrynbaum);…

Lee, Valerie E., Ed.

72

Baudelaire: A Collection of Critical Essays. Twentieth Century Views Series.  

ERIC Educational Resources Information Center

|One of a series of works aimed at presenting contemporary critical opinion on major authors, this collection includes essays by Paul Valery, Henri Peyre, Fracois Mauriac, Charles du Bos, Etienne Gilson, P.M. Pasinetti, John Middleton Murry, Marcel Proust, Georges Poulet, Erich Auerbach, and Jean Prevost--all dealing with the biography and…

Peyre, Henri, Ed.

73

Obituary: Ronald N. Bracewell, 1921-2007  

Microsoft Academic Search

Ronald N. Bracewell, Professor Emeritus (since 1991) of Electrical Engineering at Stanford University, and a true renaissance man of science, died of a heart attack on 12 August 2007 at his home. Ron Bracewell was born in Sydney, Australia, on 22 July 1921, one of the two sons of Cecil and Valerie Bracewell. He graduated from the University of Sydney

Vahé Petrosian

2009-01-01

74

Tools for Schools. Volume 12, Number 4, May-June 2009  

ERIC Educational Resources Information Center

|This newsletter is published four times a year. It offers articles on school improvement, organizational planning, training, and managing change. This issue contains: (1) Link Up & Learn: Use Technology to Create a Personal Learning Network to Connect with Experts and Mentors Everywhere (Valerie von Frank); (2) NSDC Tool: Get Connected with…

von Frank, Valerie, Ed.

2009-01-01

75

Forum on the Future of Academic Medicine: Final Session--Implications of the Information Revolution for Academic Medicine.  

ERIC Educational Resources Information Center

Summarizes two speeches. William W. Stead offers three scenarios illustrating typical future interactions of consumers with a medical system based on informatics and information technology and then considers implications for academic medicine. Valerie Florance discusses a program that is exploring ways medical schools and teaching hospitals can…

Iglehart, John

2000-01-01

76

Tools for Schools. Volume 13, Number 1, August-September 2009  

ERIC Educational Resources Information Center

|This newsletter is published four times a year. It offers articles on school improvement, organizational planning, training, and managing change. This issue contains: (1) Leadership Teams Create Lasting Change (Valerie von Frank); (2) NSDC Tool: Force-Field Analysis; (3) NSDC Tool: Identify Your Internal and External Foci; (4) NSDC Tool: Assess…

von Frank, Valerie, Ed.

2009-01-01

77

75 FR 52507 - Proposed Information Collection; Comment Request; Annual Capital Expenditures Survey  

Federal Register 2010, 2011, 2012, 2013

...Capital Expenditures Survey AGENCY: U.S...20230 (or via the Internet at dHynek@doc...20233 (or via the Internet at valerie.cherry...Capital Expenditures Survey (ACES). The annual...non-governmental companies, organizations...by mail, or by using our...

2010-08-26

78

78 FR 50373 - Proposed Information Collection; Comment Request; Annual Capital Expenditures Survey  

Federal Register 2010, 2011, 2012, 2013

...Capital Expenditures Survey AGENCY: U.S...20230 (or via the Internet at jjessup@doc...763-3317 (or via the Internet at Valerie.Cherry...Capital Expenditures Survey (ACES). The annual...spending for non-farm companies, non- governmental...by mail, or by using our...

2013-08-19

79

69 FR 60663 - Notice of Inventory Completion: Phoebe A. Hearst Museum of Anthropology, University of California...  

Federal Register 2010, 2011, 2012, 2013

...Valerie, Riverside County, CA, by University of California...Clement W. Meighan. Site CA[macr]Riv[macr...Valley, north of the Salton Sea. No known individual...the area north of the Salton Sea as part of the traditional...most likely that site...

2004-10-12

80

Electronic Portfolios. [SITE 2002 Section].  

ERIC Educational Resources Information Center

|This document contains the following papers on electronic portfolios from the SITE (Society for Information Technology & Teacher Education) 2002 conference: (1) "What Is the Perceived Value of Creating Electronic Portfolios to Teacher Credential Candidates?" (Valerie Amber and Brenda Czech); (2) "Development and Use of Electronic Portfolios in…

Barrett, Helen C., Ed.

81

The Learning Principal[R]. Volume 4, Number 6  

ERIC Educational Resources Information Center

"The Learning Principal" is an eight-page newsletter published eight times a year. It focuses on the important and unique work of school principals. This issue includes: (1) Talking "the" Walk Renews Schools: The Transformational Leader Links Values to Actions (Valerie von Frank); (2) School Leadership: Q&A Teacher Learning Turns School from F to…

von Frank, Valerie, Ed.

2009-01-01

82

Scholar Scoop  

Microsoft Academic Search

While a priority of Fairview Academic Association is to support local deserving students with scholarship money each May, we are pleased to report that two talented Fairview stu- dents, Beau Samples and Valerie Rosebrock, took initiative and entered the ProMedica Health Systems Fields of Green scholarship competition. They were selected as finalists and were invited to present their entry January

Beckie Nester; Barb Rosebrock; Caryn McCoy; Gary Guilford

83

Reforming Chicago's High Schools: Research Perspectives on School and System Level Change.  

ERIC Educational Resources Information Center

|This collection of papers describes research on school and system level change in Chicago's high schools. Papers include "Introduction: Setting Chicago High School Reform within the National Context" (Valerie E. Lee); (1) "The Effort to Redesign Chicago High Schools: Effects on Schools and Achievement" (G. Alfred Hess, Jr. and Solomon…

Lee, Valerie E., Ed.

84

Dialogue of the four musketeers  

Microsoft Academic Search

This community note provides a summarised version of a peer review of a thesis written by Alfonso Acuna in 2007 as part of his Master's study at the University of Amsterdam. The peer review took the form of an online roundtable discussion between Valerie Brown, Nancy White, Patrick Lambe and Alfonso Acuna. Alfonso Acuna's paper was published in the May

Sarah Cummings

2010-01-01

85

English Teaching at Lilydale High.  

ERIC Educational Resources Information Center

Presents six narratives from teachers including: "VCE English at Lilydale High School" (Valerie Mayer); "Should 'I' Be Their Teacher" (Mark Matcott); "Teaching Poetry to Year 7 English Students" (Janet Lyons); "Creative Art Therapy and Mandalas" (Demi Flessa); "Would the 'Real' Teacher Please Stand Up?" (Anna Hayman); and "When Volumes Speak…

Mayer, Valerie; Matcott, Mark; Lyons, Janet; Flessa, Demi; Hayman, Anna; Hough, Peter

2002-01-01

86

Teachers Teaching Teachers (T3)[TM]. Volume 4, Number 7  

ERIC Educational Resources Information Center

"Teachers Teaching Teachers" ("T3") focuses on coaches' roles in the professional development of teachers. Each issue also explores the challenges and rewards that teacher leaders encounter. This issue includes: (1) Learning Cycle Spins Individuals into a Team (Valerie von Frank); (2) NSDC Tool: The Professional Teaching and Learning Cycle; (3)…

von Frank, Valerie, Ed.

2009-01-01

87

Tools for Schools. Volume 12, Number 4, May-June 2009  

ERIC Educational Resources Information Center

This newsletter is published four times a year. It offers articles on school improvement, organizational planning, training, and managing change. This issue contains: (1) Link Up & Learn: Use Technology to Create a Personal Learning Network to Connect with Experts and Mentors Everywhere (Valerie von Frank); (2) NSDC Tool: Get Connected with…

von Frank, Valerie, Ed.

2009-01-01

88

Comparative Performance and Barrier Properties of Biodegradable Thermoplastics and Nanobiocomposites versus PET for Food Packaging Applications  

Microsoft Academic Search

This article reports on preliminary studies of several comparative packaging properties between polyethylene terephthalate (PET) packaging films and biodegradable biopolymers such as polycarpolactone (PCL), polylacticacid (PLA), amorphous PLA (aPLA), and polyhydroxyalcanoates copolymer with 8 mol% valeriate (PHBV) and of some nanobiocomposites, in terms of thermal and retorting resistance (thermal humid processes) and oxygen, water vapor, aroma, and solvent barrier by

D. Cava; E. Gimenez; R. Gavara; J. M. Lagaron

2006-01-01

89

Harlem on Our Minds: Place, Race, and the Literacies of Urban Youth. Language & Literacy Series  

ERIC Educational Resources Information Center

In her new book, Valerie Kinloch investigates how the lives and literacies of youth in New York City's historic Harlem are affected by public attempts to gentrify the community. Kinloch draws connections between race, place, and students' literate identity through collaborative interviews between youth, teachers, longtime black residents, and…

Kinloch, Valerie

2009-01-01

90

Tools for Schools. Volume 13, Number 1, August-September 2009  

ERIC Educational Resources Information Center

This newsletter is published four times a year. It offers articles on school improvement, organizational planning, training, and managing change. This issue contains: (1) Leadership Teams Create Lasting Change (Valerie von Frank); (2) NSDC Tool: Force-Field Analysis; (3) NSDC Tool: Identify Your Internal and External Foci; (4) NSDC Tool: Assess…

von Frank, Valerie, Ed.

2009-01-01

91

Citizen's Briefing Book (to President Barack Obama from the American People).  

National Technical Information Service (NTIS)

As a closing act for the Transition, Senior Advisor Valerie Jarrett requested that the Office of Public Liaison create a process by which Americans outside of Washington could come together to present ideas directly to the President a Citizens Briefing Bo...

2009-01-01

92

Stroke Affecting Younger People Worldwide, Study Shows  

MedlinePLUS

... all strokes, according to a new study. The analysis of data gathered between 1990 and 2010 found that ... increase, according to study leader Valery Feigin, director of the National Institute for Stroke and Applied Neurosciences at AUT University in New Zealand, and ...

93

Literacy, Community, and Youth Acts of Place-Making  

ERIC Educational Resources Information Center

|Valerie Kinloch describes how the literacy narratives around place-making by Phillip, an African American teenager who resides in this historic community, demonstrate complexities of confronting power, struggle, and identity within an out-of-school community that is rapidly becoming gentrified. (Contains 3 notes.)|

Kinloch, Valerie

2009-01-01

94

A MULTI-PURPOSE OFF-LINE PATH PLANNER BASED ON AN A* SEARCH ALGORITHM  

Microsoft Academic Search

Efficient navigation of an autonomous mobile robot through a majority of which search for shortest euclidean-distance paths for well-defined environment requires the ability of the robot to plan robots free of nonholonomic constraints. For a broad overview of paths. An efficient and reliable planar off-line path planner has been path planning for robots see (Latombe, 1990). Deo and Pang developed

Arturo L. Rankin; Carl D. Crane

95

Impact of Gluma Desensitizer on the tensile strength of zirconia crowns bonded to dentin: an in vitro study.  

PubMed

This study tested the impact of Gluma Desensitizer on the tensile strength of zirconia crowns bonded to dentin. Human teeth were prepared and randomly divided into six groups (N = 144, n = 24 per group). For each tooth, a zirconia crown was manufactured. The zirconia crowns were cemented with: (1) Panavia21 (PAN), (2) Panavia21 combined with Gluma Desensitizer (PAN-G), (3) RelyX Unicem (RXU), (4) RelyX Unicem combined with Gluma Desensitizer (RXU-G), (5) G-Cem (GCM) and (6) G-Cem combined with Gluma Desensitizer (GCM-G). The initial tensile strength was measured in half (n = 12) of each group and the other half (n = 12) subjected to a chewing machine (1.2 Mio, 49 N, 5°C/50°C). The cemented crowns were pulled in a Universal Testing Machine (1 mm/min, Zwick Z010) until failure occurred and tensile strength was calculated. Data were analyzed with one-way and two-way ANOVA followed by a post hoc Scheffé test, t test and Kaplan-Meier analysis with a Breslow-Gehan analysis test (? = 0.05). After the chewing simulation, the self-adhesive resin cements combined with Gluma Desensitizer showed significantly higher tensile strength (RXU-G, 12.8 ± 4.3 MPa; GCM-G, 13.4 ± 6.2 MPa) than PAN (7.3 ± 1.7 MPa) and PAN-G (0.9 ± 0.6). Within the groups, PAN, PAN-G and RXU resulted in significantly lower values when compared to the initial tensile strength; the values of all other test groups were stable. In this study, self-adhesive resin cements combined with Gluma Desensitizer reached better long-term stability compared to PAN and PAN-G after chewing simulation. PMID:21336631

Stawarczyk, Bogna; Hartmann, Leonie; Hartmann, Rahel; Roos, Malgorzata; Ender, Andreas; Ozcan, Mutlu; Sailer, Irena; Hämmerle, Christoph H F

2011-02-19

96

Malignant transformation of Epstein-Barr virus-negative Akata cells by introduction of the BARF1 gene carried by Epstein-Barr virus.  

PubMed

Spontaneous loss of the Epstein-Barr virus (EBV) genome in the BL cell line Akata led to loss of tumorigenicity in SCID mice, suggesting an important oncogenic activity of EBV in B cells. We previously showed that introduction of the BARF1 gene into the human B-cell line Louckes induced a malignant transformation in newborn rats (M. X. Wei, J. C. Moulin, G. Decaussin, F. Berger, and T. Ooka, Cancer Res. 54:1843-1848, 1994). Since 1 to 2% of Akata cells expressed lytic antigens and expressed the BARF1 gene, we investigated whether introduction of the BARF1 gene into EBV-negative Akata cells can induce malignant transformation. Here we show that BARF1-transfected, EBV-negative Akata cells activated Bcl2 expression and induced tumor formation when they were injected into SCID mice. In addition, when EBV-positive Akata cells expressing a low level of BARF1 protein were injected into SCID mice, the expression of BARF1, as well as several lytic proteins, such as EA-D, ZEBRA, and a 135-kDa DNA binding protein, increased in tumor cells while no latent LMP1 and late gp220-320 expression was observed in tumor cells. These observations suggest that the BARF1 gene may be involved in the conferral of tumorigenicity by EBV. PMID:12610162

Sheng, Wang; Decaussin, Gisèle; Ligout, Audrey; Takada, Kenzo; Ooka, Tadamasa

2003-03-01

97

Effect of arabinofuranosylthymine on the replication of Epstein-Barr virus and relationship with a new induced thymidine kinase activity.  

PubMed Central

1-beta-D-Arabinofuranosylthymine (araT) is a selective inhibitor of Epstein-Barr virus replication induced in both thymidine kinase (TK)-negative (TK-) and TK+ variants of the lymphoid cell line P3HR-I. This analog has no effect on the growth of noninduced cells (T. Ooka and A. Calender, Virology 104:219-223, 1980). The synthesis of early antigens is not affected by the analog, whereas that of late viral capsid antigens is completely inhibited, as demonstrated by the indirect immunofluorescence technique; kinetic reassociation experiments have also shown that araT strongly inhibits replication of viral DNA. Phosphorylation of the tritiated form of the analog ([3H]araT) was analyzed by thin-layer chromatography in cultures of control and induced cells, and the results demonstrated that only induced cells can convert the analog to the triphosphate form. These results indicate that the selective effect of araT in induced cells is probably related to a new virally induced TK activity. Preliminary characterization of this new activity has shown that it is able to phosphorylate the analog specifically, whereas cellular TKs cannot. araTTP, a final phosphorylation product of araT, is a potent inhibitor of Epstein-Barr virus-specific DNA polymerase, suggesting a possible inhibitory action of this product on Epstein-Barr virus replication.

Ooka, T; Calender, A; de Turenne, M; Daillie, J

1983-01-01

98

A new VLF/LF atmospheric noise model  

NASA Astrophysics Data System (ADS)

Atmospheric noise, originating essentially from lightning discharges, is the main disturbance of VLF/LF telecommunications. This paper characterizes atmospheric noise in the 10-80 kHz range and proposes a new model: very accurate low-frequency noise model (VALERIE). This model uses a new approach, which combines noise measurements with lightning data. The noise statistics were obtained from several years of measurements taken by the Délégation Générale de l'Armement (DGA)/Centre Technique des Systèmes Naval (CTSN) (Toulon, France) and the Space and Naval Warfare Systems (SPAWAR) (San Diego, California). Lightning data were provided by recent satellite observations made by NASA. A comparison of VALERIE predictions with measurements by cross validation showed an increase in accuracy compared to the current International Telecommunication Union (Geneva) model and a decreased average deviation. The model has been validated for the Atlantic area but may be extended as new measurements are collected.

Fieve, S.; Portala, P.; Bertel, L.

2007-06-01

99

Ladies on the Label: A Meta-Analysis of Stereotypes in Advertising  

Microsoft Academic Search

ABSTRACT Ladies on the Label: A Meta-Analysis of Stereotypes in Advertising Valerie Spears This thesis explores the origins of modern-day racism and sexism by combining a meta-analysis with an in-depth historical examination,of the Aunt Jemima and Betty Crocker campaigns. The ten studies used in the meta-analysis were selected and analyzed based on criteria developed from the research question and literature

Valerie L. Spears; Corley Dennison; Janet Dooley; Cicero M. Fain

2007-01-01

100

Dancing on the X-rays: On the Theatre of Memory, counter-memory, and Postmemory in the Post1989 East-European Context  

Microsoft Academic Search

The works selected for this article – Václav Havel’s play Leaving (2008), Tom Stoppard’s West End hit Rock ‘n’ Roll (2006), and Valery Todorovsky’s film musical Stilyagi [The Boogie-Bones] (2008) exemplify how contemporary writers of two different generations and three East European geographies reflect on the impact on today’s politicians, or lack thereof, of the political resistance of the communist

Yana Meerzon

2011-01-01

101

Featured Organism: Schizosaccharomyces pombe, The Fission Yeast  

PubMed Central

Schizosaccharomyces pombe, the fission yeast, has long been a crucial model for the study of the eukaryote cell cycle. We take a look at this important yeast, whose genome has recently been completed, featuring comments from Valerie Wood, Jürg Bähler, Ramsay McFarlane, Susan Forsburg, Iain Hagan and Paul Nurse on the implications of having the complete sequence and future prospects for pombe genomics.

2002-01-01

102

Postwar Princesses, Young Apprentices, and a Little Fish-Girl: Reading Subjectivities in Hayao Miyazakis Tales of Fantasy  

Microsoft Academic Search

In this article, I explore the representation of girl power in Hayao Miyazaki’s shōjo anime through feminist media studies. Located in feminist post-structuralism and media\\/cultural studies (Valerie Walkerdine, Mieke Bal, Elisabeth Ellsworth), I focus on the interpretation of the following films: Nausicaä of the Valley of the Wind (1984), Princess Mononoke (1997), Spirited Away (2001), and Ponyo on the Cliff

Montserrat RifÃ-Valls

103

Postwar Princesses, Young Apprentices, and a Little Fish-Girl: Reading Subjectivities in Hayao Miyazaki’s Tales of Fantasy  

Microsoft Academic Search

: In this article, I explore the representation of girl power in Hayao Miyazaki’s shōjo anime through feminist media studies. Located in feminist post-structuralism and media\\/cultural studies (Valerie Walkerdine, Mieke Bal, Elisabeth Ellsworth), I focus on the interpretation of the following films: Nausicaä of the Valley of the Wind (1984), Princess Mononoke (1997), Spirited Away (2001), and Ponyo on the

Montserrat Rifà-Valls

104

Lipid Metabolic Studies in Oophorectomized Women: Effects Induced by Two Different Estrogens on Serum Lipids and Lipoproteins  

Microsoft Academic Search

11 oophorectomized women (mean age 34.5 ± 5.9) were given the 17-C-alkylated ethinyl estradiol (EE) 20 ?g\\/day and the non-alkylated estrogen, estradiol valeri-anate (E2V) 2 mg\\/day for 6 weeks in separate periods preceded by 6 weeks without hormonal replacement therapy. Blood samples were drawn before and after 6 weeks on each estrogen. Serum phospholipids, cholesterol and triglycerides were assessed. Preparative

G. Silfverstolpe; A. Gustafson; G. Samsioe; A. Svanborg

1980-01-01

105

A non-glycosylated, plant-produced human monoclonal antibody against anthrax protective antigen protects mice and non-human primates from B. anthracis spore challenge.  

PubMed

The health and economic burden of infectious diseases in general and bioterrorism in particular necessitate the development of medical countermeasures. One proven approach to reduce the disease burden and spread of pathogen is treatment with monoclonal antibodies (mAb). mAbs can prevent or reduce severity of the disease by variety of mechanisms, including neutralizing pathogen growth, limiting its spread from infected to adjacent cells, or by inhibiting biological activity of toxins, such as anthrax lethal toxin. Here, we report the production of glycosylated (pp-mAb (PA) ) and non-glycosylated (pp-mAb (PANG) ) versions of a plant-derived mAb directed against protective antigen (PA) of Bacillus anthracis in Nicotiana benthamiana plants using agroinfiltration. Both forms of the antibody were able to neutralize anthrax lethal toxin activity in vitro and protect mice against an intraperitoneal challenge with spores of B. anthracis Sterne strain. A single 180 µg intraperitoneal dose of pp-mAb (PA) or pp-mAb (PANG) provided 90% and 100% survival, respectively. When tested in non-human primates, pp-mAb (PANG) was demonstrated to be superior to pp-mAb (PA) in that it had a significantly longer terminal half-life and conferred 100% protection against a lethal dose of aerosolized anthrax spore challenge after a single 5 mg/kg intravenous dose compared to a 40% survival rate conferred by pp-mAb (PA) . This study demonstrates the potential of a plant-produced non-glycosylated antibody as a useful tool for the treatment of inhalation anthrax. PMID:21270531

Mett, Vadim; Chichester, Jessica A; Stewart, Michelle L; Musiychuk, Konstantin; Bi, Hong; Reifsnyder, Carolyn J; Hull, Anna K; Albrecht, Mark T; Goldman, Stanley; Baillie, Les W J; Yusibov, Vidadi

2011-01-01

106

Abnormal Taenia saginata tapeworms in Thailand.  

PubMed

Sixty-eight residents of Ban Luang and Ban Pang Kae villages, in Nan Province, northern Thailand, visited our mobile field station in September 2006 and March 2007, seeking treatment for taeniasis. After treatment, 22 cases discharged tapeworm strobila in their fecal samples and 17 scolices were recovered. Among these, 3 were morphologically abnormal, with six suckers on the scolex. To confirm the species of these tapeworms, the mitochondrial cytochrome c oxidase subunit I (COI) gene was used as a molecular marker. The partial COI sequences (800 bp) of the abnormal tapeworms were identical to the sequences of Taenia saginata deposited in Genbank. PMID:22299430

Maipanich, Wanna; Sato, Megumi; Pubampen, Somchit; Sanguankiat, Surapol; Kusolsuk, Teera; Thaenkham, Urusa; Waikagul, Jitra

2011-09-01

107

Metal-chelating plastic MALDI (pMALDI) chips for the enhancement of phosphorylated-peptide/protein signals.  

PubMed

A disposable polymeric pMALDI array with a universal metal cation-chelatable surface for pretreatment/signal enhancement of phosphoproteins and/or phosphopeptides in complex samples was developed. Acrylic acid N-hydroxysuccinimide ester and methyl methacrylate monomers were copolymerized in thin layer molds in a 1:13.3 molar ratio and subsequently treated with Nalpha,Nalpha-bis(carboxymethyl)-l-lysine to obtain a structured planar MALDI array. The prepared NTA pMALDI chip array was activated with metal cations (e.g., Ga(III), Ni(II)), and the selectivities for phosphopeptides (e.g., trypsin-digested alpha-casein (alpha-Cas), and phospho-angiotensin II (p-Ang)) were evaluated using MALDI-TOF/MS. The highest selectivity for proteins was observed for the Ni(II)-NTA chip. The p-Ang was enriched in the presence of BSA tryptic peptides ca. 5 times and represented the major peak after sample adsorption/washing on Ga(III)-NTA chip. The performance of the Ga(III)-chip, tested on alpha-Cas tryptic digest, is fully comparable to commercial systems. Additionally, higher MW peptides and limited methionine oxidation were observed with the chip. A combination of selective absorption of phosphoproteins on Ni(II)-chips and the further enrichment of digested phosphopeptides on the Ga(III)-chip can prove to be very useful for fast identification of unknown proteins using MALDI-TOF/MS. PMID:17655346

Ibañez, Alfredo J; Muck, Alexander; Svatos, Ales

2007-07-27

108

Stomatal Density and Responsiveness of Banana Fruit Stomates  

PubMed Central

Determination of stomatal densities of the banana peel (Musa acuminata L. var Hort. Valery) by microscopic observations showed 30 times fewer stomates on fruit epidermis than found on the banana leaf. Observations also showed that peel stomates were not laid down in a linear pattern as on the leaf. It was demonstrated that stomatal responses occurred in banana fruit. Specific conditions of high humidity and light were necessary for stomatal opening: low humidity and darkness were necessary for closure. Responsiveness of the stomates continued for a considerable length of time after the fruit had been severed from the host. Images

Johnson, Barbara E.; Brun, W. A.

1966-01-01

109

Uncertainty estimates for the Bayes Inference Engine, (BIE)  

SciTech Connect

In the fall 2007 meeting of the BIB users group, two approaches to making uncertainty estimates were presented. Ken Hanson asserted that if the BFGS optimizer was used, the inverse Hessian matrix was the same as the covariance matrix representing parameter uncertainties. John Pang presented preliminary results of a Monte Carlo method called Randomized Maximum Likelihood (RML). The BFGS/Hessian matrix approach may be applied to the region of the 'ideal model' Approximately 250 parameters describing the object density patches that are varied to match an image of 1,000,000 pixels. I cast this in terms of least squares analysis, as it is much better understood. This not as large a conceptual jump as some suppose because many of the functional blocks in the BIB are taken directly from existing least squares programs. If a Gaussian (normal) probability density function is assumed for both the observation and parameter errors, the Bayesian and least squares result should be identical.

Beery, Thomas A [Los Alamos National Laboratory

2009-01-01

110

Effect of amiloride and spironolactone on renal tubular function, ambulatory blood pressure, and pulse wave velocity in healthy participants in a double-blinded, randomized, placebo-controlled, crossover trial.  

PubMed

We wanted to test the hypothesis that treatment with amiloride or spironolactone reduced ambulatory (ABP) and central blood pressure (CBP) and that tubular transport via ENaC? and AQP2 was increased after furosemide treatment. During baseline conditions, there were no differences in ABP, CBP, renal tubular function, or plasma concentrations of vasoactive hormones. After furosemide treatment, an increase in CBP, CH(2)o, FE(Na), FE(K), u-AQP2/min, u-ENaC?/min, PRC, p-Ang II, and p-Aldo was observed. The increases in water and sodium absorption via AQP2 and ENaC after furosemide treatment most likely are compensatory phenomena to antagonize water and sodium depletion. PMID:22591021

Matthesen, Solveig Klok; Larsen, Thomas; Lauridsen, Thomas Guldager; Vase, Henrik; Gjørup, Pia Holland; Nykjær, Karen Marie; Nielsen, Søren; Pedersen, Erling Bjerregaard

2012-05-16

111

Effect of amiloride and spironolactone on renal tubular function and central blood pressure in patients with arterial hypertension during baseline conditions and after furosemide: a double-blinded, randomized, placebo-controlled crossover trial.  

PubMed

This study demonstrates that the increased potassium content in the body seems to change both the blood pressure and renal tubular function. We wanted to test the hypotheses that amiloride and spironolactone induced potassium retention reduces ambulatory blood pressure (ABP) and central blood pressure (CBP) during baseline conditions and after furosemide and that the tubular transport via the epithelial sodium channels (ENaCs) and aquaporin-2 (AQP2) water channels was increased by furosemide in arterial hypertension. Each of three 28-day treatment periods (placebo, amiloride, and spironolactone) was completed by a 4-day period with standardized diet regarding calories and sodium and water intake. At the end of each period, we measured pulse wave velocity (PWV), central systolic blood pressure (CSBP), central diastolic blood pressure (CDBP), glomerular filtration rate (GFR), free water clearance (CH2O), fractional excretion of sodium (FENa) and potassium (FEK), urinary excretion of AQP2 (u-AQP2), urinary excretion of ?-fraction of the ENaC (u-ENaC?), and plasma concentrations of renin (PRC), angiotensin II (p-Ang II), and aldosterone (p-Aldo) at baseline conditions and after furosemide bolus. Ambulatory blood pressure and CBP were significantly lowered by amiloride and spironolactone. During 24-hour urine collection and at baseline, GFR, CH2O, FENa, FEK, u-AQP2 and u-ENaC? were the same. After furosemide, CH2O, FENa, FEK, u-AQP2, u-ENaC?, PRC, p-Ang II, p-Aldo, PWV and CDBP increased after all treatments. However, during amiloride treatment, FEK increased to a larger extent than after spironolactone and during placebo after furosemide, and CSBP was not significantly reduced. The increases in water and sodium absorption via AQP2 and ENaC after furosemide most likely are compensatory phenomena to antagonize water and sodium depletion. Amiloride is less effective than spironolactone to reduce renal potassium excretion. PMID:22966789

Matthesen, Solveig K; Larsen, Thomas; Vase, Henrik; Lauridsen, Thomas G; Jensen, Janni M; Pedersen, Erling B

2012-09-11

112

[A case of diastematomyelia (split cord malformation type I) with clinical manifestation in adulthood].  

PubMed

We present the case of a female patient with split-cord malformation type I (diastematomyelia) who developed first symptoms as an adult and worsened markedly after intramedullary injection of local anaesthetics. Our own observations are compared with the small number of cases known from the literature. We are using the morphological and clinical classification of spinal malformations of Pang et al. (1992), which is based on a uniform disturbed embryonal development [18, 19]. The 52-year-old patient presented to her family physician in September 1991 with pain in the region of the vertebral column which had developed gradually over a period of two weeks. Following unsuccessful analgetic and muscle-relaxing therapy, the family physician had the patient transferred to the orthopedic department of a hospital. Lumbar peridural infiltrations were carried out there in February 1992 for a suspected disc prolapse. Since June 1992, she had no longer been able to walk. In addition, there had also been a progredient urinary incontinence since April 1992. The spinal CT scan reveals a duplication of spinal cord starting at the level of L4 as well as a bony spur dividing the spinal cord at levels L4 and L5. MRI of the vertebral column likewise reveals a duplication of the spinal cord starting at L4 as well as a low conus and a bone spur extending from L4 to L5 is also visualized here. Each primordial spinal cord is surrounded by its own dura mater. Altogether, this led to the diagnosis of split cord malformation type I according to Pang et al. [18].(ABSTRACT TRUNCATED AT 250 WORDS) PMID:7887051

List, J; Stendel, R; Rudolph, K H; Brock, M

1994-01-01

113

Could the Ways in Which Animals Regenerate Hair and Feathers Lead to Clues for Restoring Human Fingers and Toes?  

NSDL National Science Digital Library

Press release - The latest issue of the journal Physiology contains a review article that looks at possible routes that unlock cellular regeneration in general, and the principles by which hair and feathers regenerate themselves in particular. The authors apply what is currently known about regenerative biology to the emerging field of regenerative medicine, which is being transformed from fantasy to reality.The Review is entitled ÃÂPhysiological Regeneration of Skin Appendages and Implications for Regenerative MedicineÃÂ and was written by Cheng-Ming Chuong, Randall B. Widelitz, Ping Wu, and Ting-Xin Jiang of the University of Southern California, and Valerie A. Randall of the University of Bradford. It appears in the current edition of Physiology, published by the American Physiological Society.

APS Communications Office (American Physiological Society Communications Office)

2012-05-10

114

Meteors in the Earth's Atmosphere  

NASA Astrophysics Data System (ADS)

1. Introduction Iwan Williams and Edmond Murad; 2. The evolution of meteoroid streams Iwan Williams; 3. Space dust measurements Eberhard Grun, Valeri Dikarev, Harald Kruger and Markus Landgraf; 4. Extraterrestrial dust in the near-Earth environment George Flynn; 5. Detection and analysis procedures for visual photographic and image intensified CCD meteor observations Robert Hawkes; 6. Radar observations W. Jack Baggaley; 7. Meteor trails as observed by Lidar Ulf von Zahn, J. Hoffner and William McNeil; 8. In situ measurements of meteoritic ions Joseph Grebowsky and Arthur Aikin; 9. Collected extraterrestrial materials: interplanetary dust particles, micrometeorites, meteorites, and meteoritic dust Frans Rietmeijer; 10. Meteoroid impacts on spacecraft; Luigi Foschini; 11. Models of meteoritic metals in the atmosphere William McNeil, Edmond Murad and John Plane; 12. Laboratory studies of meteoritic metal chemistry John Plane; 13. Summary and future outlook Edmond Murad and Iwan Williams.

Murad, Edmond; Williams, Iwan P.

2002-09-01

115

Archives of American Mathematics Spotlight  

NSDL National Science Digital Library

The Archives of American Mathematics (AAM) is a unit of the Dolph Briscoe Center for American History at the University of Texas at Austin. It is the only US archival repository dedicated solely to collecting and preserving the papers and records of mathematicians and mathematical organizations. On this site, visitors can read about the history of the AAM in an interview with Carol Mead, who is the chief archivist at the AAM. After that, visitors should go along to the Featured Collections area, which contains papers from over a dozen distinguished mathematicians including Paul Halmos, William Chinn, and Lawrence Biedenharn. One area that should not be missed is the Two Audio Collections. Here, visitors can listen to selected shows from the "Math Medley Program," which featured interviews with a range of mathematicians, including Sue White and Valerie DeBellis on the "Emotions of Mathematics."

116

International Program and Local Organizing Committees  

NASA Astrophysics Data System (ADS)

International Program Committee Dionisio Bermejo (Spain) Roman Ciurylo (Poland) Elisabeth Dalimier (France) Alexander Devdariani (Russia) Milan S Dimitrijevic (Serbia) Robert Gamache (USA) Marco A Gigosos (Spain) Motoshi Goto (Japan) Magnus Gustafsson (Sweden) Jean-Michel Hartmann (France) Carlos Iglesias (USA) John Kielkopf (USA) John C Lewis (Canada) Valery Lisitsa (Russia) Eugene Oks (USA) Christian G Parigger (USA) Gillian Peach (UK) Adriana Predoi-Cross (Canada) Roland Stamm (Germany) Local Organizing Committee Nikolay G Skvortsov (Chair, St Petersburg State University) Evgenii B Aleksandrov (Ioffe Physico-Technical Institute, St Petersburg) Vadim A Alekseev (Scientific Secretary, St Petersburg State University) Sergey F Boureiko (St.Petersburg State University) Yury N Gnedin (Pulkovo Observatory, St Petersburg) Alexander Z Devdariani (Deputy Chair, St Petersburg State University) Alexander P Kouzov (Deputy Chair, St Petersburg State University) Nikolay A Timofeev (St Petersburg State University)

2012-12-01

117

Urinary excretion of AQP2 and ENaC in autosomal dominant polycystic kidney disease during basal conditions and after a hypertonic saline infusion.  

PubMed

Renal handling of sodium and water is abnormal in chronic kidney diseases. To study the function and regulation of the aquaporin-2 water channel (AQP2) and the epithelial sodium channel (ENaC) in autosomal dominant polycystic kidney disease (ADPKD), we measured urinary excretion of AQP2 (u-AQP2), the ?-subunit of ENaC (u-ENaC(?)), cAMP (u-cAMP), and prostaglandin E(2) (u-PGE(2)); free water clearance (C(H2O)); fractional sodium excretion (FE(Na)); and plasma vasopressin (p-AVP), renin (p-Renin), angiotensin II (p-ANG II), aldosterone (p-Aldo), and atrial and brain natriuretic peptide (p-ANP, p-BNP) in patients with ADPKD and healthy controls during 24-h urine collection and after hypertonic saline infusion during high sodium intake (HS; 300 mmol sodium/day) and low sodium intake (LS; 30 mmol sodium/day). No difference in u-AQP2, u-ENaC(?), u-cAMP, u-PGE(2), C(H2O), and vasoactive hormones was found between patients and controls at baseline, but during HS the patients had higher FE(Na). The saline caused higher increases in FE(Na) in patients than controls during LS, but the changes in u-ENaC(?), p-Aldo, p-ANP, p-BNP, p-Renin, and p-ANG II were similar. Higher increases in u-AQP2 and p-AVP were seen in patients during both diets. In conclusion, u-AQP2 and u-ENaC(?) were comparable in patients with ADPKD and controls at baseline. In ADPKD, the larger increase in u-AQP2 and p-AVP in response to saline could reflect an abnormal water absorption in the distal nephron. During LS, the larger increase in FE(Na) in response to saline could reflect a defective renal sodium retaining capacity in ADPKD, unrelated to changes in u-ENaC(?). PMID:22262484

Graffe, Carolina Cannillo; Bech, Jesper Nørgaard; Lauridsen, Thomas Guldager; Pedersen, Erling Bjerregaard

2012-01-18

118

[Alternative options for examination of the patency of peritoneo-venous shunts].  

PubMed

For the treatment of refractory ascites we use the saphenoperitoneal shunt described by Pang in 1992 approximately 2 years. This procedure eliminates the most frequent complications of the former synthetic shunts: occlusion of the collector branches and infections as well. In addition, the use of autologous vein is cost-saving. The first Hungarian publications (K. Vincze and Z. Nagy et al.) reported good results, which are confirmed also by us, after we performed 21 operations. The publications until now usually describe the technique. This intervention is now a widely accepted one. On the other hand, just a small number of papers describe the options for the examination of patency and the follow-ups. We report about the algorithm used in our department after surgery to evaluate graft patency and surgical efficacy. A method to determine the volume of ascites developed by ourselves is described. We feel that the successful application of saphenoperitoneal shunts depends on very close follow-up. Considering that no objective method to check the patency does exist, we are sure that decisions about further operations can only be made if simultaneous diverse follow-up methods are available. PMID:15270521

Arató, Endre; Kollár, Lajos; Szilágyi, Károly; Litter, Ilona; Schmidt, Erzsébet

2004-02-01

119

Fermion frontiers in vector lattice gauge theories: Proceedings. Volume 8  

SciTech Connect

The inclusion of fermions into simulations of lattice gauge theories is very difficult both theoretically and numerically. With the presence of Teraflops-scale computers for lattice gauge theory, the authors wanted a forum to discuss new approaches to lattice fermions. The workshop concentrated on approaches which are ripe for study on such large machines. Although lattice chiral fermions are vitally important to understand, there is not technique at hand which is viable on these Teraflops-scale machines for real-world problems. The discussion was therefore focused on recent developments and future prospects for QCD-like theories. For the well-known fermion formulations, the Aoki phase in Wilson fermions, novelties of U{sub A}(1) symmetry and the {eta}{prime} for staggered fermions and new approaches for simulating the determinant for Wilson fermions were discussed. The newer domain-wall fermion formulation was reviewed, with numerical results given by many speakers. The fermion proposal of Friedberg, Lee and Pang was introduced. They also were able to compare and contrast the dependence of QCD and QCD-like SUSY theories on the number of quark flavors. These proceedings consist of several transparencies and a summary page from each speaker. This should serve to outline the major points made in each talk.

NONE

1998-11-01

120

Solid-on-solid model for surface growth in 2+1 dimensions  

NASA Astrophysics Data System (ADS)

We analyze in detail the solid-on-solid (SOS) model for growth processes on a square substrate in 2+1 dimensions. By using the Markovian surface properties, we introduce an alternative approach for determining the roughness exponent of a special type of SOS model—the restricted-solid-on-solid (RSOS) model—in 2+1 dimensions. This model is the SOS model with the additional restriction that the height difference must be S=1. Our numerical results show that the behavior of the SOS model in 2+1 dimensions for approximately S?Sט8 belongs to the two different universality classes: during the initial time stage, tPang (2004) [8]. Using the structure function, we compute the roughness exponent. In contrast to the growth exponent, the roughness exponent does not show crossover for different values of S. The scaling exponents of the structure function for fixed values of separation distance versus S in one and two space dimensions are ?=0.92±0.05 and ?=0.86±0.05 at 1? confidence level, respectively.

Hosseinabadi, S.; Masoudi, A. A.; Sadegh Movahed, M.

2010-04-01

121

Miyun metre-wave aperture synthesis radio telescope  

NASA Astrophysics Data System (ADS)

The Miyun metre-wave aperture synthesis radiotelescope, working at frequency of 232 MHz, consists of an E-W array of 28 elements, each of 9 m aperture. 192 baselines are effected with a full coverage of the U-V plane (Fig. 2). The longest baseline is 1,164m. This instrument is designed for source survey and detection of peculiar sources in northern declinations. A set of observations completed in 2 × 12 hours gives a thermal noise limited sensititity of 0.05 Jy and a resolution of 3'8 × 3'8 csc ?. The field of view is 8° × 8°. This should enable us to complete an overall survey of the region ? >= + 30° within two years, and to carry out monitoring of selected areas. Figures 1 and 2 show the main properties and general design of the instrument and Figures 3 and 4 give some preliminary results of sky mapping. The following persons took part in the designing and making of the telescope: WANG Hong, Wang Xin-min, Wang Shou-guan, Liu Fu-you, Pu Ting-yi, Chen Hong-shen, Qiu Yu-hai, Yang Yi-pei, Pang Lei, Zhang Chun-lu, Zhang Guo-quan, Zhang Xi-zhen, Jin Tie-lin, Zheng Yi-jia, Zhao Hui-ping, Nan Ren-dong, Kang Lian-sheng, Bao Hong-qi, Wei Ming-zhi.

1986-03-01

122

Integrating chemical and biological control of European corn borer in bell pepper.  

PubMed

Using multiple locations and a series of field trials over 2 yr, we evaluated an integrated pest management program for Ostrinia nubilalis (Hübner) (Lepidoptera: Crambidae) management in peppers involving biorational chemistries, inundative releases of Trichogramma ostriniae (Pang & Chen), and conservation of generalist predators. In small plot trials, three biorational insecticides (spinosad, indoxacarb, and methoxyfenozide) provided comparable control of O. nubilalis as two broad-spectrum conventional insecticides (acephate and lambda-cyhalothrin). However, lambdacyhalothrin at most locations, and indoxacarb at one location, resulted in outbreaks of green peach aphids. We also observed significant effects on the generalist predator community: beneficial communities in methoxyfenozide-treated plots were most similar to untreated controls, and acephate-treated plots were the least similar. Management systems comparing untreated controls, inundative release of T. ostriniae with methoxyfenozide applied when lepidopterans exceeded thresholds, or weekly applications of acephate or lambda-cyhalothrin, showed no effects on marketable fruit or percentage of fruit damaged, but the conventional insecticide approach caused aphid flares. Inundative releases of T. ostriniae and biorational chemistries provide a more environmentally sound approach to managing O. nubilalis in peppers, due, in part, to conservation of generalist predators. PMID:19253647

Chapman, Anna V; Kuhar, Thomas P; Schultz, Peter B; Leslie, Timothy W; Fleischer, Shelby J; Dively, Galen P; Whalen, Joanne

2009-02-01

123

Multi-generation effects of Bt rice on Anagrus nilaparvatae, a parasitoid of the nontarget pest Nilapavarta lugens.  

PubMed

Little is known about the potential cumulative long-term effects of transgenic crops on nontarget organisms. In the present laboratory study, the potential cumulative effects of transgenic Bacillus thuringiensis (Bt) rice on parasitoids in successive generations were observed for an egg parasitoid, Anagrus nilaparvatae parasitizing eggs of Nilaparvata lugens (Stål) (Hemiptera: Delphacidae) feeding on Bt rice. Enzyme-linked immunosorbent assay test confirmed that Cry1Ab insecticidal protein could be detected in newly eclosed parasitoid adults. However, no significant effect on the fecundity of Anagrus nilaparvatae Pang et Wang (Hymenoptera: Mymaridae) was observed between Bt and non-Bt rice. Developmental times of both genders of A. nilaparvatae parasitizing host eggs laid in Bt (KMD1 and KMD2) rice lines were significantly prolonged from first generation to second generation, but not always prolonged from third generation to 11th generation as compared with the control rice line. Furthermore, the sex ratio of A. nilaparvatae progeny from the first generation to 11th generation in three rice lines was not significantly different. In general, our results suggested that the effect of Bt rice on this parasitoid could be negligible. PMID:22182572

Gao, Ming-Qing; Hou, Shou-Peng; Pu, De-Qiang; Shi, Min; Ye, Gong-Yin; Chen, Xue-Xin

2010-12-01

124

Preference and performance of Anagrus nilaparvatae (Hymenoptera: Mymaridae): effect of infestation duration and density by Nilaparvata lugens (Homoptera: Delphacidae).  

PubMed

The effect of Nilaparvata lugens (Stål) infestation duration and density on the host preference and performance of Anagrus nilaparvatae Pang et Wang, an egg parasitoid of rice planthoppers, was determined. The results showed that the parasitoid preferred N. lugens eggs on the plants infested with 10 gravid N. lugens females for 1 d to those plants infested with 10 gravid females for 2 or 3 d. It was also found to prefer N. lugens eggs on plants infested with 10 or 20 adult females after 24 h of infestation to those plants infested with 5 or 80 females. The parasitoid's offsprings had lower survival rates, fecundities, female ratios, indexes of capacity for population increase, and longer developmental durations on plants when they were infested with high N. lugens density (80 adult females per plant). However, the performance of the parasitoid on plants infested with low N. lugens density (5 female adults per plant) was similar to those on plants with intermediate N. lugens density (10 or 20 adult females per plant). Low preference of the parasitoid for N. lugens eggs on plants with heavy or light infestation levels may be correlated with low host suitability and detectability, respectively. The result implies an important role of herbivore-induced rice volatiles in the host preference of the parasitoid A. nilaparvatae, by which the parasitoid perceives the host and its suitability. PMID:18559181

Xiang, Caiyu; Ren, Nan; Wang, Xia; Sumera, Afsheen; Cheng, Jiaan; Lou, Yonggen

2008-06-01

125

Differences in intestinal microbial metabolites in laying hens with high and low levels of repetitive feather-pecking behavior.  

PubMed

Feather pecking in laying hens is a serious behavioral problem and is often associated with feather eating. There is some evidence that ingested feathers affect gut function. The aim of the present study was to explore whether differences in intestinal microbial metabolites in laying hens with high and low levels of repetitive feather-pecking behavior exist. Sixty high feather-pecking birds (H) and sixty low feather-pecking birds (L) of the White Leghorn breed were used for behavioral recordings of feather pecking. Feather pecking activity was observed for 5 weeks, after which 22 H birds with the highest and 22 L birds with the lowest feather pecking activity were chosen. The number of whole feathers and feather parts in the gizzard and intestinal microbial metabolites in the ileum and ceca of these laying hens was examined. Biogenic amines, short-chain fatty acids, ammonia and lactate were measured as microbial metabolites. A higher number of feather parts and particles were found in H than in L birds. Putrescine and cadaverine concentrations were higher in the ileum of the hens with low pecking activity (P<0.001 and P=0.012). In the cecum the amounts of l-lactate, d-lactate and total lactate and SCFA were higher in H birds (P=0.007, P=0.005, P=0.006, and P<0.001). Acetate, i-butyrate, i-valeriate and n-valeriate all displayed significantly higher molar ratios in the cecal contents of L birds (P=0.001, P=0.003, P=0.001, and P<0.001). Propionate and n-butyrate showed higher molar ratios in H birds (P<0.001 and P=0.034). Ammonia was higher in the ileum and cecum of the L birds (P<0.001 and P=0.004). For the first time, this study shows that birds with high and low numbers of repetitive pecking movements to the plumage of other birds differ in their intestinal microbial metabolism. Further experiments should be conducted to investigate whether these differences alter behavior in H and L feather pecking birds. The present results, however, open new avenues of research into implications of gut bacteria, their metabolites and the polyamine system on brain and behavior in laying hens. PMID:23313560

Meyer, Beatrice; Zentek, Jürgen; Harlander-Matauschek, Alexandra

2013-01-08

126

Remotely Sensed and In Situ Data Availability for Validation of EOS Land Data Products  

NASA Astrophysics Data System (ADS)

In support of the NASA Earth Observing System (EOS) Land Product Validation investigations, numerous remotely sensed data and field measurements are being collected at core validation sites around the world. These `core sites' represent different biomes and include locations at which in situ measurements are routinely collected. The types of remotely sensed data that are being acquired and analyzed over these sites include Landsat 7 ETM+, ASTER, MODIS, and SPOT VEGETATION. The data being collected over these sites are being used to monitor ecosystem status, compile time-series records of biophysical and geophysical parameters, and to validate the suite of land products being derived from MODIS data. In order to facilitate easy access to the remotely sensed data being collected over these core sites, the data are stored online under FTP directories established by the Land Processes Distributed Active Archive Center (LP DAAC) at the USGS EROS Data Center. In situ measurements and data collected through field campaigns are being coordinated by the Oak Ridge National Laboratory Distributed Active Archive Center (ORNL DAAC) and being made accessible through the Mercury system, which is a web-based search engine (http://mercury.ornl.gov/ornldaac/). Access to many of the remotely sensed and in situ data sets collected over the EOS Land Validation `core sites' can be accessed through Mercury or the MODIS Land Validation web page (http://modarch.gsfc.nasa.gov/MODIS/LAND/VAL/). We are hoping to stimulate interest and participation by the Validation of Land European Remote Sensing Instruments (VALERI, http://147.100.0.5/valeri//) to extend the network and diversity of sites as well as increase collaborative research. We have developed a web portal that enables investigators to select a particular site of interest, determine what data are available for that site, and select datasets for ftp download. Certain services may be requested to be applied to the data prior to download, including: spatial and parameter subsetting, projection transformation, and file format conversion. The scientific rationale for this project is predicated on improving international and interdisciplinary collaboration in the assessment, application, and improvement of remotely sensed data products and services available to the research community. Efforts to validate remotely sensed data products at a global scale are unprecedented, yet such efforts are necessary in order to quantify the errors or uncertainties associated with these derived geophysical and biophysical parameters. These products must be evaluated over a wide range of land surface conditions and on a regular basis.

Dwyer, J.; Morisette, J.

2003-12-01

127

Relativistic Astrophysics  

NASA Astrophysics Data System (ADS)

Preface; Prologue: Conference overview Bernard Carr; Part I. The Universe At Large and Very Large Redshifts: 2. The size and age of the Universe Gustav A. Tammann; 3. Active galaxies at large redshifts Malcolm S. Longair; 4. Observational cosmology with the cosmic microwave background George F. Smoot; 5. Future prospects in measuring the CMB power spectrum Philip M. Lubin; 6. Inflationary cosmology Michael S. Turner; 7. The signature of the Universe Bernard J. T. Jones; 8. Theory of large-scale structure Sergei F. Shandarin; 9. The origin of matter in the universe Lev A. Kofman; 10. New guises for cold-dark matter suspects Edward W. Kolb; Part II. Physics and Astrophysics Of Relativistic Compact Objects: 11. On the unification of gravitational and inertial forces Donald Lynden-Bell; 12. Internal structure of astrophysical black holes Werner Israel; 13. Black hole entropy: external facade and internal reality Valery Frolov; 14. Accretion disks around black holes Marek A. Abramowicz; 15. Black hole X-ray transients J. Craig Wheeler; 16. X-rays and gamma rays from active galactic nuclei Roland Svensson; 17. Gamma-ray bursts: a challenge to relativistic astrophysics Martin Rees; 18. Probing black holes and other exotic objects with gravitational waves Kip Thorne; Epilogue: the past and future of relativistic astrophysics Igor D. Novikov; I. D. Novikov's scientific papers and books.

Jones, Bernard J. T.; Markovic, Dragoljub

1997-06-01

128

University of Kentucky Agricultural Information Center  

NSDL National Science Digital Library

If you're just starting to learn about agriculture, biology, or human environmental sciences, it can be a bit daunting. There are hundreds of online resources dealing with such matters, and separating the wheat from the chaff can be taxing and time-consuming. Valerie Perry and Jo Staggs-Neel at the University of Kentucky Library's Agricultural Information Center have created these three excellent research guides to the aforementioned subjects. The guides contain seven or eight separate subsections, including "Electronic Resources", "Best Databases", and "Frequently Cited Journals". Each guide also contains a "New Resource" area which profiles a newly added resource that complements the existing set of resources. A number of the links lead to resources that require a password or subscription, but there are enough here with open access to pique the interest of persons new to the field. Overall, it's a good way to get a basic grounding in the important online and offline resources in these three scholarly subjects.

129

STS-113 Flight Day 6 Highlights  

NASA Astrophysics Data System (ADS)

This video shows the activities of the STS-113 crew (Jim Wetherbee, Commander; Paul Lockhart, Pilot; Michael Lopez-Alegria, John Herrington, Mission Specialists) during flight day 6. Also shown are the Expedition 5 (Valeri Korzun, Commander; Peggy Whitsun, ISS Science Officer/Flight Engineer; Sergei Treschev, Flight Engineer) and Expedition 6 (Kenneth Bowersox, Commander; Donald Pettit, Nikolai Budarin, Flight Engineers) crews of the ISS (International Space Station). The primary activity of flight day 6 is the outfitting of the P1 (Port 1) Truss Structure. The suiting up and departure of Lopez-Alegria and Herrington through the ISS Quest airlock is shown. The departure is shown through sequential still video. The ISS CETA handrail cart is shown in use, as is a pistol-grip space tool. At the end of the EVA, the astronauts are shown cleaning up outside the ISS. The video also contains a Thanksgiving message about the importance of technological advances in spaceflight, and footage of the Moon disappearing behind the Earth's limb.

2002-11-01

130

Association between QRS Duration and Obstructive Sleep Apnea  

PubMed Central

Background: Both obstructive sleep apnea (OSA) and prolonged QRS duration are associated with hypertension, heart failure, and sudden cardiac death. However, possible links between QRS duration and OSA have not been explored. Methods: Cross-sectional study of 221 patients who underwent polysomnography at our center. Demographics, cardiovascular risk factors and ECG were collected to explore a relationship between OSA and QRS duration. Results: The apnea-hypopnea index (AHI) was positively correlated with QRS duration (r = 0.141, p = 0.03). Patients were divided into 3 groups: AHI < 5 (61), AHI 5-29 (104), and AHI > 30 (55). The mean QRS duration prolonged significantly as OSA worsened (AHI < 5, 85 ± 9.5; AHI 5-29, 89 ± 11.9; and AHI > 30, 95 ± 19.9 ms, p = 0.001). QRS ? 100 ms was present in 12.7% of patients with severe OSA compared with 0% in the rest of the sample (p < 0.0001). After adjustment for age, race, and cardiovascular risk factors, this association remained significant in women but not in men. Conclusion: QRS duration and OSA were significantly associated. Severity of OSA independently predicted prolonged QRS in women but not men. Nevertheless, prolongation of QRS duration in either sex may potentiate arrhythmic risks associated with OSA. Citation: Gupta S; Cepeda-Valery B; Romero-Corral A; Shamsuzzaman A; Somers VK; Pressman GS. Association between QRS duration and obstructive sleep apnea. J Clin Sleep Med 2012;8(6):649-654.

Gupta, Shuchita; Cepeda-Valery, Beatriz; Romero-Corral, Abel; Shamsuzzaman, Abu; Somers, Virend K.; Pressman, Gregg S.

2012-01-01

131

STS-112 Flight Day 10 Highlights  

NASA Astrophysics Data System (ADS)

On Flight Day 10 of the STS-112 mission, its crew (Jeffrey Ashby, Commander; Pamela Melroy, Pilot; David Wolf, Mission Specialist; Piers Sellers, Mission Specialist; Sandra Magnus, Mission Specialist; Fyodor Yurchikhin, Mission Specialist) on the Atlantis and the Expedition 5 crew on the International Space Station (ISS) (Valery Korzun, Commander; Peggy Whitson, Flight Engineer; Sergei Treschev, Flight Engineer) are shown exchanging farewells in the ISS's Destiny Laboratory Module following the completion of a week-long period of docked operations. The Expedition 5 crew is nearing the end of five and a half continuous months aboard the space station. Following the closing of the hatches, the Atlantis Orbiter undocks from the station, and Melroy pilots the shuttle slowly away from the ISS, and engages in a radial fly-around of the station. During the fly-around cameras aboard Atlantis shows ISS from a number of angles. ISS cameras also show Atlantis. There are several shots of each craft with a variety of background settings including the Earth, its limb, and open space. The video concludes with a live interview of Ashby, Melroy and Yurchikhin, still aboard Atlantis, conducted by a reporter on the ground. Questions range from feelings on the conclusion of the mission to the experience of being in space. The primary goal of the mission was the installation of the Integrated Truss Structure S1 on the ISS.

2002-10-01

132

Human Embryology Animations  

NSDL National Science Digital Library

One of the most impressive ways to learn about biology, particularly that which we seldom see, is through modeling. Dr. Valerie O'Loughlin and her colleagues at Indiana University have created this thoroughly impressive set of animations so that "students could better understand the complex processes that must occur in embryologic development." The site is arranged into five main areas, including: Cardiovascular Embryology, Development of the Head and Neck, Gastrointestinal Embryology, Development of the Limbs, and Urinary and Reproductive Embryology. However, the only two sections currently loaded with animations are the first two. Presumably, the rest are coming soon. Also, because these animations are part of a study of teaching efficacy, Dr. O'Loughlin asks that users participate in an optional survey. However, all animations can be accessed without taking part. As a great addition to the site, users are presented with a few questions regarding the anatomy which they are about to see, prior to viewing the animation. Undboutedly, this is related to the Indiana University course that these animations are a part of, but they serve as a great addition for visitors other than students, too.

O'Loughlin, Valerie

133

Bribery or benevolence?  

PubMed

This paper presents an interview from several pro-choice leaders on the topic of abortion. The interview aims to assess the appropriateness of actions taken by Cardinal Thomas Winning of the Scottish Catholic Church, founder of Prolife Initiative. The action centers on an issue concerning the father of a pregnant girl aged 12 years who approached the program asking help for her daughter to carry her pregnancy to term. The father claimed the family could not provide the basic needs for the baby and that his daughter would be devastated to have an abortion. Established in 1997, the Initiative offers girls and women an alternative to abortion. According to news accounts, teachers and social workers encouraged her to have an abortion. The Initiative agreed to give her financial support, which however, remained unclear as to what form the support had taken. Opinions concerning these issues were obtained from Alison Hadley, Brook Centers national policy coordinator in United Kingdom (UK); Jane Roe, Abortion Law Reform Association coordinator in UK; Tony O'Brien, executive director of the Family Planning Association in Ireland; Valerie Stroud, representative of We are Church in UK; and Frances Kissling, president of Catholics for a Free Choice in USA. Surprising differences in views surfaced and are discussed in this article. PMID:12178912

Hisel, L M; Miller, P

2000-01-01

134

SOFIA FORCAST Images of the Bipolar Planetary Nebula M2-9  

NASA Astrophysics Data System (ADS)

As part of a SOFIA Basic Science program to study compact planetary nebulae, we have obtained images of the bipolar nebula M2-9, using the FORCAST bands at 6.6, 11.1, 19.7, 24.2, 33.6, and 37.1um. All images show a very bright point like central condensation associated with the exciting star of the nebula and the surrounding circumstellar dust. At the four longest wavelengths, the two bipolar lobes are seen in the images, extending some 20 arcsec from the central star. The integrated signal from each of the lobes may be visible at the two shorter wavelengths as well. The intensity and spectrum of the infrared radiation from the lobes is consistent with thermal emission from grains entrained in the bipolar outflow, and seen at visible wavelengths in scattered starlight. We compare the structure of the lobes as seen from SOFIA with that seen in Hubble images and report the results of attempting to fit the lobe profiles with emission from an outflow cavity with limb-brightened edges. Jessica Davis was the Charles and Valerie Elachi SURF Fellow at JPL during the summer of 2011. We appreciate the support of Jim DeBuizer and others at the Sofia Science Center. Portions of this research were carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.

Werner, Michael W.; Davis, J.; Sahai, R.; Morris, M.; Keller, L.; Herter, T.

2012-01-01

135

Acoustic wave reflection from thermal gradient regions in a gas  

NASA Astrophysics Data System (ADS)

Acoustic wave reflection from thermal gradient regions in a gas Calin Tarau, Volkan Otugen, Valery Sheverev and George Vradis Polytechnic University Six Metrotech Center Brooklyn, NY 11201 Temperature gradients in a gas medium can cause reflection and refraction of acoustic waves. For large incidence angles and sharp temperature gradients, sound reflection from the high (or low) temperature zone can be significant. The present report evaluates the effectiveness of using small regions of hot gas inside an ambient environment as a sound barrier. The behavior of sound wave in the two extreme cases where the acoustic wavelength is either much larger or much smaller than the gradient region is well known. In the latter case, the reflection coefficient tends to be negligible while the maximum reflection is obtained for the former situation. The present is the intermediate case where Ü l L (Ü and L are the acoustic wavelength and length of gradient region, respectively). The compressible unsteady Euler's equations together with the perfect gas state equation are solved using higher order (both time and space) finite volume approach. The numerical results are compared with previous theoretical analysis and recent experimental results of sound propagation through glow discharge.

Tarau, Calin; Otugen, Volkan; Sheverev, Valeri; Vradis, George

2003-11-01

136

STS-113 Post Flight Presentation  

NASA Astrophysics Data System (ADS)

The STS-113 post-flight presentation begins with a view of Mission Specialists Michael E. Lopez-Alegria and John B. Herrington getting suited for the space mission. The STS-113 crew consists of: Commander James D. Wetherbee, Pilot Paul Lockhart, Mission Specialists Michael Lopez-Alegria and John Herrington. Cosmonauts Valery Korzun, and Sergei Treschev, and astronaut Peggy Whitson who are all members of the expedition five crew, and Commander Kenneth Bowersox, Flight Engineers Nikolai Budarin and Donald Pettit, members of Expedition Six. The main goal of this mission is to take Expedition Six up to the International Space Station and Return Expedition Five to the Earth. The second objective is to install the P(1) Truss segment. Three hours prior to launch, the crew of Expedition Six along with James Wetherbee, Paul Lockhart, Michael Lopez-Alegria and John Herrington are shown walking to an astrovan, which takes them to the launch pad. The actual liftoff is presented. Three Extravehicular Activities (EVA)'s are performed on this mission. Michael Lopez-Alegria and John Herrington are shown performing EVA 1 and EVA 2 which include making connections between the P1 and S(0) Truss segments, and installing fluid jumpers. A panoramic view of the ISS with the Earth in the background is shown. The grand ceremony of the crew exchange is presented. The astronauts performing everyday duties such as brushing teeth, washing hair, sleeping, and eating pistachio nuts are shown. The actual landing of the Space Shuttle is presented.

2002-01-01

137

Comparison of three amyloid assembly inhibitors: the sugar scyllo-inositol, the polyphenol epigallocatechin gallate, and the molecular tweezer CLR01.  

PubMed

Many compounds have been tested as inhibitors or modulators of amyloid ?-protein (A?) assembly in hope that they would lead to effective, disease-modifying therapy for Alzheimer's disease (AD). These compounds typically were either designed to break apart ?-sheets or selected empirically. Two such compounds, the natural inositol derivative scyllo-inositol and the green-tea-derived flavonoid epigallocatechin gallate (EGCG), currently are in clinical trials. Similar to most of the compounds tested thus far, the mechanism of action of scyllo-inositol and EGCG is not understood. Recently, we discovered a novel family of assembly modulators, Lys-specific molecular tweezers, which act by binding specifically to Lys residues and modulate the self-assembly of amyloid proteins, including A?, into formation of nontoxic oligomers by a process-specific mechanism (Sinha, S., Lopes, D. H., Du, Z., Pang, E. S., Shanmugam, A., Lomakin, A., Talbiersky, P., Tennstaedt, A., McDaniel, K., Bakshi, R., Kuo, P. Y., Ehrmann, M., Benedek, G. B., Loo, J. A., Klarner, F. G., Schrader, T., Wang, C., and Bitan, G. (2011) Lysine-specific molecular tweezers are broad-spectrum inhibitors of assembly and toxicity of amyloid proteins. J. Am. Chem. Soc.133, 16958-16969). Here, we compared side-by-side the capability of scyllo-inositol, EGCG, and the molecular tweezer CLR01 to inhibit A? aggregation and toxicity. We found that EGCG and CLR01 had comparable activity whereas scyllo-inositol was a weaker inhibitor. Exploration of the binding of EGCG and CLR01 to A? using heteronuclear solution-state NMR showed that whereas CLR01 bound to the two Lys and single Arg residues in A? monomers, only weak, nonspecific binding was detected for EGCG, leaving the binding mode of the latter unresolved. PMID:22860214

Sinha, Sharmistha; Du, Zhenming; Maiti, Panchanan; Klärner, Frank-Gerrit; Schrader, Thomas; Wang, Chunyu; Bitan, Gal

2012-03-07

138

Development of high quantum efficiency, flat panel, thick detectors for megavoltage x-ray imaging: A novel direct-conversion design and its feasibility  

SciTech Connect

Most electronic portal imaging devices (EPIDs) developed to date, including recently developed flat panel systems, have low x-ray absorption, i.e., low quantum efficiency (QE) of 2%-4% as compared to the theoretical limit of 100%. A significant increase of QE is desirable for applications such as a megavoltage cone-beam computed tomography (MVCT) and megavoltage fluoroscopy. However, the spatial resolution of an imaging system usually decreases significantly with an increase of QE. The key to the success in the design of a high QE detector is therefore to maintain the spatial resolution. Recently, we demonstrated theoretically that it is possible to design a portal imaging detector with both high QE and high resolution [see Pang and Rowlands, Med. Phys. 29, 2274 (2002)]. In this paper, we introduce such a novel design consisting of a large number of microstructured plates (made by, e.g., photolithographic patterning of evaporated or electroplated layers) packed together and aligned with the incident x rays. On each plate, microstrip charge collectors are focused toward the x-ray source to collect charges generated in the ionization medium (e.g., air or gas) surrounded by high-density materials that act as x-ray converters. The collected charges represent the x-ray image and can be read out by various means, including a two-dimensional (2-D) active readout matrix. The QE, spatial resolution, and sensitivity of the detector have been calculated. It has been shown that the new design will have a QE of more than an order of magnitude higher and a spatial resolution equivalent to that of flat panel systems currently used for portal imaging. The new design is also quantum noise limited down to very low doses ({approx}1-2 radiation pulses of the linear accelerator)

Pang, G.; Rowlands, J.A. [Toronto--Sunnybrook Regional Cancer Centre, Department of Radiation Oncology, University of Toronto, 2075 Bayview Avenue, Toronto M4N 3M5 (Canada); Imaging Research, Sunnybrook and Womens College Health Sciences Centre, Departments of Medical Imaging and Medical Biophysics, University of Toronto, Toronto M4N 3M5 (Canada)

2004-11-01

139

COLOR SUPERCONDUCTIVITY, INSTANTONS AND PARITY (NON?)-CONSERVATION AT HIGH BARYON DENSITY-VOLUME 5.  

SciTech Connect

This one day Riken BNL Research Center workshop was organized to follow-up on the rapidly developing theoretical work on color super-conductivity, instanton dynamics, and possible signatures of parity violation in strong interactions that was stimulated by the talk of Frank Wilczek during the Riken BNL September Symposium. The workshop was held on November 11, 1997 at the center with over 30 participants. The program consisted of four talks on theory in the morning followed by two talks in the afternoon by experimentalists and open discussion. Krishna Rajagopal (MIT) first reviewed the status of the chiral condensate calculations at high baryon density within the instanton model and the percolation transition at moderate densities restoring chiral symmetry. Mark Alford (Princeton) then discussed the nature of the novel color super-conducting diquark condensates. The main result was that the largest gap on the order of 100 MeV was found for the 0{sup +} condensate, with only a tiny gap << MeV for the other possible 1{sup +}. Thomas Schaefer (INT) gave a complete overview of the instanton effects on correlators and showed independent calculations in collaboration with Shuryak (SUNY) and Velkovsky (BNL) confirming the updated results of the Wilczek group (Princeton, MIT). Yang Pang (Columbia) addressed the general question of how breaking of discrete symmetries by any condensate with suitable quantum numbers could be searched for experimentally especially at the AGS through longitudinal A polarization measurements. Nicholas Samios (BNL) reviewed the history of measurements on {Lambda} polarization and suggested specific kinematical variables for such analysis. Brian Cole (Columbia) showed recent E910 measurements of {Lambda} production at the AGS in nuclear collisions and focused on the systematic biases that must be considered when looking for small symmetry breaking effects. Lively discussions led by Robert Jaffe (MIT) focused especially on speculations on the still unknown signatures of 0{sup +} color super-conductivity which of course would not be observable via discrete symmetry breaking.

GYULASSY,M.

1997-11-11

140

Development of a monoclonal antibody-based p24 capsid antigen detection assay for HTLV-I, HTLV-II, and STLV-I infection.  

PubMed

A monoclonal antibody-based antigen capture enzyme-linked immunosorbent assay (ELISA) was developed and employed to detect p24 capsid antigen from human T-cell lymphotropic viruses type I and II (HTLV-I, HTLV-II), simian T-cell lymphotropic virus type I (STLV-I)-infected cell lines, and from mononuclear cell cocultures of HTLV-infected humans and STLV-I infected monkeys. A monoclonal antibody specific for HTLV p24 and p53 capsid antigens was coated onto 96-well microtiter plates to capture HTLV/STLV antigen. Captured antigen was then detected by the addition of a polyclonal, biotinylated human anti-HTLV-I antibody, and color developed with tetramethyl benzidine/H2O2 substrate. As little as 15 pg/ml of HTLV-I p24 antigen could be detected in this assay. Culture supernatants from HTLV-I-infected cell lines (HUT-102, MT-2, C5/MJ, HTLV-II-infected cell lines (Mo-T, Mo-B, PanG 12.1, NRA) and STLV-I-infected cell lines (Matsu, NEPC M39) were all positive in the assay. In addition, p24 was detected from peripheral blood mononuclear cell (PBMC) cocultures of 8 of 8 (100%) HTLV-I diseased patients, 14 of 20 (70%) HTLV-I and HTLV-II-infected, asymptomatic persons, and 8 of 8 (100%) STLV-I-infected, asymptomatic monkeys. Culture supernatants of cells infected with human immunodeficiency virus type (HIV-1), simian immunodeficiency virus (SIV), Chlamydia trachomatis, cytomegalovirus (CMV), herpes simplex I and II (HSV), feline leukemia virus (FELV), bovine leukemia virus (BLV), and bovine immunodeficiency virus (BIV) were all negative. Similarly, normal human peripheral blood mononuclear cells and uninfected, transformed human T cells, were also negative in the assay.(ABSTRACT TRUNCATED AT 250 WORDS) PMID:1318063

Toedter, G; Pearlman, S; Hofheinz, D; Blakeslee, J; Cockerell, G; Dezzutti, C; Yee, J; Lal, R B; Lairmore, M

1992-04-01

141

List of participants at SIDE IV meeting, Tokyo, 27 November--1 December 2000  

NASA Astrophysics Data System (ADS)

Mark J Ablowitz, Vsevolod Adler, Mark Alber, Said Belmehdi, Marco Boiti, Claude Brezinski, R Bullough, Y M Chiang, Theodore Chihara, Peter A Clarkson, Robert Conte, Adam Doliwa, Vladimir Dorodnitsyn, Mitsuaki Eguchi, Claire Gilson, Basil Grammaticos, Valeri Gromak, Rod Halburd, Koji Hasegawa, Jarmo Hietarinta, Ryogo Hirota, Xing Biao Hu, M Idzumi, J Inoguchi, Hiroya Ishikara, Mourad Ismail, Shin Isojima, Kenichi Ito, Yoshiaki Itoh, Masashi Iwasaki, Klara Janglajew, Michio Jimbo, Nalini Joshi, Kenji Kajiwara, Saburo Kakei, Masaru Kamata, Satoshi Kamei, Rinat Kashaev, Shingo Kawai, Taeko Kimijima, K Kimura, Anatol Kirillov, Koichi Kondo, Boris Konopelchenko, Martin Kruskal, Atsuo Kuniba, Wataru Kunishima, Franklin Lambert, Serguei Leble, Decio Levi, Shigeru Maeda, Manuel Manas, Ken-Ichi Maruno, Tetsu Masuda, J Matsukidaira, Atsushi Matsumiya, Shigeki Matsutani, Yukitaka Minesaki, Mikio Murata, Micheline Musette, Atsushi Nagai, Katsuya Nakagawa, Atsushi Nakamula, Akira Nakamura, Yoshimasa Nakamura, Frank Nijhoff, J J C Nimmo, Katsuhiro Nishinari, Michitomo Nishizawa, A Nobe, Masatoshi Noumi, Yaeko Ohsaki, Yasuhiro Ohta, Kazuo Okamoto, Alexandre Orlov, Naoki Osada, Flora Pempinelli, Spiro Pyrlis, Reinout Quispel, Orlando Ragnisco, Alfred Ramani, Jean-Pierre Ramis, Andreas Ruffing, Simon Ruijsenaars, Satoru Saito, Noriko Saitoh, Hidetaka Sakai, Paulo Santini, Narimasa Sasa, Ryu Sasaki, Yoshikatsu Sasaki, Junkichi Satsuma, Sergei Sergeev, Nobuhiko Shinzawa, Evgueni Sklyanin, Juris Suris, Norio Suzuki, Yukiko Tagami, Katsuaki Takahashi, Daisuke Takahashi, Tomoyuki Takenawa, Yoshiro Takeyama, K M Tamizhmani, T Tamizhmani, Kouichi Toda, Morikatsu Toda, Tetsuji Tokihiro, Takayuki Tsuchida, Yohei Tsuchiya, Teruhisa Tsuda, Satoru Tsujimoto, Walter Van Assche, Claude Viallet, Luc Vinet, Shinsuke Watanabe, Yoshihida Watanabe, Ralph Willox, Pavel Winternitz, Yasuhiko Yamada, Yuji Yamada, Jin Yoneda, Haruo Yoshida, Katsuhiko Yoshida, Daisuke Yoshihara, Fumitaka Yura, J Zagrodzinski, Alexei Zhedanov

2001-12-01

142

Biophysical Land Surface Products From ADEOS-2/POLDER-2  

NASA Astrophysics Data System (ADS)

Monitoring of terrestrial vegetation from satellites at global and regional scales requires accurate and frequent measurements of surface reflectance. In this context, the POLDER instrument leads a key improvement providing, at high temporal resolution, measurements of the Bi-directional Reflectance Distribution Function corrected for atmospheric effects. In the frame of the ADEOS-2/POLDER-2 project, advanced Land Surface Level 3 algorithms have been developed to retrieve the spectral Directional-Hemispherical Reflectances (DHR), the Normalized Difference Vegetation Index (NDVI) corrected for directional effects, the Leaf Area Index (LAI) and the Fraction of Vegetation Cover (FVC). A multi-temporal filtering module removes the observations contaminated by residual clouds and/or aerosols, the inversion of a semi-empirical kernel model fitting the hot spot gives the BRDF coefficients which lead to the DHR and NDVI, a neural network inverting a radiative transfer model in the vegetation retrieves the LAI and the FVC. Furthermore, an error depending on the noise on the input data (i.e. the measured bi-directional spectral reflectances) and on the retrieval algorithm, is assessed for each parameter. We present the Land Surface Level 3 products generated from ADEOS-2/POLDER-2 bi-directional reflectances acquired from April to October, 2003. The retrieved parameters are validated, first to estimate their accuracy for the user community, and also to provide feedback so that retrieval algorithm can be improved. The validation procedure relies on the following steps: 1) Analyze of the spatial and temporal variability; 2) Comparison with previous ADEOS-1/POLDER-1 products; 3) Comparison with available equivalent products derived from other sensors by similar or different approaches; 4) Comparison with in-situ measurements: data collected during international campaigns or regional studies, and spatially-distributed reference data sets like those produced in the frame of the VALERI (VAlidation of Land European Remote sensing instrument) project.

Lacaze, R.; Maignan, F.; Breon, F.; Weiss-Cohen, M.; Baret, F.

2004-05-01

143

STS-112 Flight Day 4 Highlights  

NASA Astrophysics Data System (ADS)

On the fourth day of STS-112, its crew (Jeffrey Ashby, Commander; Pamela Melroy, Pilot; David Wolf, Mission Specialist; Piers Sellers, Mission Specialist; Sandra Magnus, Mission Specialist; Fyodor Yurchikhin, Mission Specialist) onboard Atlantis and the Expedition 5 crew (Valery Korzun, Commander; Peggy Whitson, Flight Engineer; Sergei Treschev, Flight Engineer) onboard the International Space Station (ISS) are seen preparing for the installation of the S1 truss structure. Inside the Destiny Laboratory Module, Korzun and other crewmembers are seen as they busily prepare for the work of the day. Sellers dons an oxygen mask and uses an exercise machine in order to purge the nitrogen from his bloodstream, in preparation for an extravehicular activity (EVA). Whitson uses the ISS's Canadarm 2 robotic arm to grapple the S1 truss and remove it from Atlantis' payload bay, with the assistance of Magnus. Using the robotic arm, Whitson slowly maneuvers the 15 ton truss structure into alignment with its attachment point on the starboard side of the S0 truss structure, where the carefully orchestrated mating procedures take place. There is video footage of the entire truss being rotated and positioned by the arm, and ammonia tank assembly on the structure is visible, with Earth in the background. Following the completion of the second stage capture, the robotic arm is ungrappled from truss. Sellers and Wolf are shown exiting the the Quest airlock hatch to begin their EVA. They are shown performing a variety of tasks on the now attached S1 truss structure, including work on the Crew Equipment Translation Cart (CETA), the S-band Antenna Assembly, and umbilical cables that provide power and remote operation capability to cameras. During their EVA, they are shown using a foot platform on the robotic arm. Significant portions of their activities are shown from the vantage of helmet mounted video cameras. The video closes with a final shot of the ISS and its new S1 truss.

2002-10-01

144

Forum on the future of academic medicine: final session--implications of the information revolution for academic medicine.  

PubMed

The seventh and final meeting of the Association of American Medical Colleges' (AAMC's) Forum on the Future of Academic Medicine began December 4, 1998, with a talk by William W. Stead, MD, associate vice-chancellor for health affairs at Vanderbilt University Medical Center and director of its informatics center. Dr. Stead envisions a future in which informatics and information technology will place the consumer squarely in the center of the system, empowered with greater knowledge of health care; he gave three short scenarios to illustrate future typical interactions of consumers with the system. He then discussed the implications for academic medicine. For example, academic medical centers (AMCs) could become the information providers and quality assurance hubs of their regions. Various participants questioned some of the speaker's claims (one asserting that there would be serious complications if clinical information were made available to patients). The second speaker, Valerie Florance, PhD, director of the AAMC's better-health@here.now program, discussed her program, whose purpose is to explore the ways medical schools and teaching hospitals can best use information technology and the Internet in the coming decade to improve individual and community health. Nothing in the ensuing discussion indicated that the participants believed that academic medical centers would be spared painful dislocations if they were to embark on a road of institutional reform to respond to the pressures of the new and more competitive global economy. Greater awareness of this not-necessarily-welcomed message may be one of the lasting legacies of the forum. PMID:10724312

Iglehart, J

2000-03-01

145

Potentiating effect of pure oxygen on the enhancement of respiration by ethylene in plant storage organs: a comparative study.  

PubMed

A number of fruits and bulky storage organs were studied with respect to the effect of pure O(2) on the extent and time-course of the respiratory rise induced by ethylene. In one group, of which potato (Solanum tuberosum var. Russet) and carrot (Daucus carota) are examples, the response to ethylene in O(2) is much greater than in air. In a second group, of which avocado (Persea americana Mill. var. Hass) and banana (Musa cavendishii Lambert var. Valery) are examples, air and O(2) are equally effective. When O(2)-responsive organs are peeled, air and O(2) synergize the ethylene response to the same extent in parsnip (Pastinaca sativa), whereas O(2) is more stimulatory than air in carrots. In the latter instance, carrot flesh is considered to contribute significantly to diffusion resistance. The release of CO(2), an ethylene antagonist, is recognized as another element in the response to peeling.The potentiating effect of O(2) is considered to be primarily on ethylene action in the development of the respiratory rise rather than on the respiration process per se. On the assumption that diffusion controls O(2) movement into bulky organs and the peel represents the major diffusion barrier, simple calculations indicate that the O(2) concentration in untreated organs in air readily sustains respiration. Furthermore, in ethylene-treated organs in pure O(2), the internal O(2) concentration is more than enough to maintain the high respiration rates. Skin conductivity to O(2) is the fundamental parameter differentiating O(2)-responsive from O(2)-nonresponsive fruits and bulky storage organs. The large preceding the earliest response to ethylene, as well as the magnitude of the ethylene-induced respiratory rise, is also controlled by permeability characteristics of the peel. PMID:16662339

Theologis, A; Laties, G G

1982-05-01

146

Basal testosterone moderates responses to anger faces in humans.  

PubMed

Prior research [van Honk J, Tuiten A, Verbaten R, van den Hout M, Koppeschaar H, Thijssen J, de Haan E. Correlations among salivary testosterone, mood, and selective attention to threat in humans. Horm Behav 1999;36(1):17-24; van Honk J, Tuiten A, Hermans E, Putman P, Koppeschaar H, Thijssen J, Verbaten R, van Doornen L. A single administration of testosterone induces cardiac accelerative responses to angry faces in healthy young women. Behav Neurosci 2001;115(1):238-42.] showed relationships in humans between testosterone (T) and vigilance to facial expressions of anger, which are considered signals of an impending dominance challenge. In Study 1, we used a differential implicit learning task (DILT) (see [Schultheiss OC, Pang JS, Torges CM, Wirth MM, Treynor W. Perceived facial expressions of emotion as motivational incentives: evidence from a differential implicit learning paradigm. Emotion 2005;5(1):41-54.]) to investigate the degree to which subjects find anger faces reinforcing. In the DILT, separate sequences of actions were paired with presentations of anger faces, neutral faces or a blank screen. After training, performance on the three sequences was measured in the absence of face stimuli. Saliva was collected for T measurement. Higher T predicted better learning on sequences paired with sub-threshold (i.e., presented too fast for conscious awareness) anger faces, suggesting that T is related to reinforcing qualities of these faces. In Study 2, we examined whether morning or afternoon T better predicted attention and vigilance to anger faces. Participants were tested at 9:00 and 15:00. At each session, saliva was collected for T measurement, and participants completed a Stroop task and a dot-probe task [Mogg K, Bradley BP, Hallowell N. Attentional bias to threat: roles of trait anxiety, stressful events, and awareness. Q J Exp Psychol A 1994;47(4):841-64.] with facial expression stimuli. Morning (peak) T was a better predictor of responses to anger faces than afternoon T. Morning T predicted greater Stroop-like interference to sub-threshold anger faces, as well as attentional orienting away from sub-threshold anger faces. These effects were not present for joy faces or for supraliminal anger faces. T may generally decrease aversion to threatening stimuli, and/or may specifically facilitate approach towards signals of dominance challenge. PMID:17174989

Wirth, Michelle M; Schultheiss, Oliver C

2006-12-18

147

Oligopolistic competition in wholesale electricity markets: Large-scale simulation and policy analysis using complementarity models  

NASA Astrophysics Data System (ADS)

This dissertation conducts research into the large-scale simulation of oligopolistic competition in wholesale electricity markets. The dissertation has two parts. Part I is an examination of the structure and properties of several spatial, or network, equilibrium models of oligopolistic electricity markets formulated as mixed linear complementarity problems (LCP). Part II is a large-scale application of such models to the electricity system that encompasses most of the United States east of the Rocky Mountains, the Eastern Interconnection. Part I consists of Chapters 1 to 6. The models developed in this part continue research into mixed LCP models of oligopolistic electricity markets initiated by Hobbs [67] and subsequently developed by Metzler [87] and Metzler, Hobbs and Pang [88]. Hobbs' central contribution is a network market model with Cournot competition in generation and a price-taking spatial arbitrage firm that eliminates spatial price discrimination by the Cournot firms. In one variant, the solution to this model is shown to be equivalent to the "no arbitrage" condition in a "pool" market, in which a Regional Transmission Operator optimizes spot sales such that the congestion price between two locations is exactly equivalent to the difference in the energy prices at those locations (commonly known as locational marginal pricing). Extensions to this model are presented in Chapters 5 and 6. One of these is a market model with a profit-maximizing arbitrage firm. This model is structured as a mathematical program with equilibrium constraints (MPEC), but due to the linearity of its constraints, can be solved as a mixed LCP. Part II consists of Chapters 7 to 12. The core of these chapters is a large-scale simulation of the U.S. Eastern Interconnection applying one of the Cournot competition with arbitrage models. This is the first oligopolistic equilibrium market model to encompass the full Eastern Interconnection with a realistic network representation (using a DC load flow approximation). Chapter 9 shows the price results. In contrast to prior market power simulations of these markets, much greater variability in price-cost margins is found when using a realistic model of hourly conditions on such a large network. Chapter 10 shows that the conventional concentration indices (HHIs) are poorly correlated with PCMs. Finally, Chapter 11 proposes that the simulation models are applied to merger analysis and provides two large-scale merger examples. (Abstract shortened by UMI.)

Helman, E. Udi

148

Using Distributed-Hydrology-Soil-Vegetation Model to Study Road Effects on Stream flow and Soil Moisture  

NASA Astrophysics Data System (ADS)

The distributed-hydrology-soil-vegetation model (DHSVM) was applied in Pang Khum Experimental Watershed (PKEW), located near 19.05\\deg N, 98.65\\deg E in the mountainous region of northern Thailand, headwaters of the Chao Phraya River system. PKEW has a highly seasonal rainfall regime, with 90% of the annual 1200-1400 mm rainfall occurring during the southwest summer monsoon. The elevation of PKEW ranges from approximately 1100 to 1500 m. Total road area including road banks is about 1.2% of the basin area. About 57% of the road area occurs on slopes steeper than 10%. All roads are unpaved. Land cover in PKEW is affected by swidden agriculture. Six land cover and nine soil classes are identified in the basin. We have been working in the area since 1997 as part of the Thailand Roads Project (TRP). Within the basin, we are monitoring microclimate at two sites, soil moisture at four sites, and rainfall at five sites. Streamflow is measured at the outlet. Based on digital elevation data, DHSVM explicitly accounts for the spatial distribution of the stream and road networks, soil depth, soil and vegetation types. The model run period, including warm up, calibration and validation, is from August 1997 to January 2001. Field measurements provide forcing data, calibration data, and guidance in parameter selection. Model calibration and validation were done by aggregating simulated hourly soil moisture and stream flow into daily values and comparing them with aggregated daily measurements. For the calibration period, RMSEs of soil moisture and streamflow were lower than the observed variability as represented by the standard deviation, median absolute deviation, and (for stream flow) interquartile range. Model performance drops in validation period, but RMSEs remain near or lower than observed variability. We ran DHSVM with and without roads to examine their effects. Significant effects of roads were found despite the very low proportion of the watershed covered by roads and road banks. Streamflow for road and non-road cases was significantly different (p < 0.0001) based on the Wilcoxon signed rank test. In general, roads increase peak volume for short, intense storms, but reduced whole-period discharge by about 5.5%. Soil moisture was affected in cells where roads occur. In cells where water exited the road onto the hillslope, soil moisture was higher than it was without the road. In cells with roads, but without water flowing onto the hillslope, soil moisture was higher in some cases and lower in others.

Cuo, L.; Giambelluca, T. W.; Ziegler, A. D.; Nullet, M. A.

2003-12-01

149

Practical quantitative assessment of imaging system in turbid water using modified fidelity index  

NASA Astrophysics Data System (ADS)

Images associated with Underwater Imaging Systems are frequently degraded due to absorption and scattering effects from its underwater environment. The absorption effect reduces the signal strength, and the latter effect reduces both signal strength and image resolution. The optimization of underwater imaging system parameters predominantly focuses on maximizing signal strength and minimizes scattering effects. In the domain of underwater images, the assessment of image quality is highly subjective and lacks the availability of a ‘standard" objective criteria, which allows a comparison of different imaging techniques and their effectiveness to be performed in a more objective manner. This paper focuses on an experimental performance evaluation of underwater imaging system through objective image quality measurement. The technique is based on 2 dimensional grayscale image of USAF (United State Air Force) target. These targets have been used extensively in underwater imaging system development. It has resolution bars in various frequencies and arrangement, which enable spatial frequencies and signal strength analysis. 3 different image evaluation techniques are used to quantify image quality of an Underwater Imaging System in increased turbidity condition. Peak Signal to Noise Ratio (PSNR) measures the output signal over its Mean Square Error (MSE). Fidelity, F, represents the absolute difference of amplitude values and the Correlation coefficient, r, reflects only changes of signal shape. The metrics scales are considered as a measure of similarity between the idealized and the derived image. In these techniques, the indices are applied to corresponding pixels of the derived and ideal images. The fidelity, F and correlation coefficient, r are applied to thermal imaging evaluation by Volodymyr Borovytsky and Valery Fesenko in 2000. The underwater images have similar characteristics to that from thermal imaging system. There is a significant component of random noise effects (from background or environments) degrading the original signal to be captured by the camera. Test conditions and processes may also induce unwanted errors or distortions into the measurement of the image quality. These include camera movement, light intensity and lens zoom. The sensitivity of some of these effects on the indexes are also presented. Some modifications of the evaluation techniques are proposed. The Modified Fidelity, MF is linearly correlated with the image quality (scattering effects) of the testing images compared to the other methods. Hence, MF is a suitable measure to quantify the scattering effect of underwater images.

Tan, Ching S.; Seet, Gerald G.; Sluzek, Andrzej

2003-08-01

150

Potassic magma genesis and the Ailao Shan-Red River fault  

NASA Astrophysics Data System (ADS)

Two types of K-rich magma of Eocene to Early Oligocene (ca. 40-30) and Plio-Pleistocene (ca. 5-0.1 Ma) age were emplaced prior to and following left-lateral slip on the Ailao Shan-Red River (ASRR) fault, a regional shear zone extending between southwest China and the Tonkin Gulf (South China Sea) that accommodated 'escape' of the Indochina block. The first type is exposed in the Dali-Lijiang and adjacent regions of western Yunnan and Sichuan and comprises ultramafic potassic to ultrapotassic 'absarokites' and their shoshonite, banakite, and SiO2-rich derivatives which were emplaced immediately prior to activation of the ASRR fault. They are characterized by high Mg.-nos, and low contents of fusible oxides (FeO*, CaO, Al2O3), for equivalent MgO content, and pronounced primitive mantle-normalized high-field strength element (HFSE) depletions. In contrast, 'post-escape' K-rich magmas were erupted in the Puer, Maguan-Pingbian regions of south and southeast Yunnan. Apart from their relative enrichments in potassium they show typical HFSE-rich intra-plate compositional affinity. Geological and geomorphic evidence, and thermochronologic age dating of metamorphisc events, suggest that left-lateral shearing occurred between ca. 30 and 17 Ma; thereby accommodating the southeastward 'escape' of Indochina and (possibly) two episodes of spreading in the South China Sea. The southwestern part of Dali-Lijiang magmatic products was detached and offset by ca. 600 km and are now located in Phan Xi Pang in northern Viet Nam. The same is true for the Permo-Triassic Emeishan flood basalts, whose western exposures were likewise displaced by the same amount and are now represented by the Song Da complex, also in northern Viet Nam. Here, we report geochemical, isotopic, and 40Ar/39Ar age data for samples from both the 'pre-escape' Dali-Lijiang magmas and the 'post-escape' K-rich Puer, Maguan-Pingbian basalts and basanites, with a view to comparing and contrasting their interpolated source compositions, estimated conditions of upper mantle melt segregation and, by inference, their mantle dynamic and contamination histories insofar as these were conditioned by the India-Asia collision. Our interpretations yielded two complementary conclusions. The first contends that the pre-escape magmas result from adiabatic melting of crust-contaminated asthenosphere comprising a 'mélange' of continental lithospheric mantle (CLM) (hydrated by sab-derived hysdrous fluids released at 0.2-0.5 GPa) and lower crust, delaminated from the overriding plate during mantle wedge corner flow and further enriched by metasomatic melts of subducted continental crust. We postulate that incipient H2O-saturated melting of the 'mélange' occurs at depths of between ca. 100 and 200 km after being 'dragged' down by relict oceanic slab fragments, in response to the dehydration of supra-subduction amphibole- and phlogopite. The ensuing viscosity 'crisis' and buoyancy relative to ambient 'fertile' convecting mantle of such asthenospheric 'pockets', and the collision-related change from lithospheric compression to extension, almost certainly predisposes such a refractory yet crust-contaminated 'pockets' to rapid adiabatic melting. The second conclusion concerns the post-escape K-rich basalts and basanites and is based on the contention that decompression melting of thermally anomalous K-rich asthenospheric occurred in response to regional post-escape transtension, concomitant with the cessation Indochina escape and contiguous seafloor spreading. However, although these magmas share the HFSE-rich fertile source character of other, widely dispersed, post-escape Cenozoic basalts they more specifically resemble relatively rare examples of intra-plate, K-rich activity observed in northeast China, central Spain, and elsewhere in Asia and Europe, arguably (indirectly) reflecting mantle perturbations caused by major continental collisions.

Flower, Martin F. J.; Hoàng, Nguy?n; Lo, Chinh-hua; Chí, Cung Thu'?'ng; Cu'ò'ng, Nguy?n Qu?c; Liu, Fu-tian; Deng, Jin-fu; Mo, Xuan-xue

2013-09-01

151

Introduction and Committees  

NASA Astrophysics Data System (ADS)

This volume contains contributions to the XXVIIIth International Colloquium on Group-Theoretical Methods in Physics, the GROUP 28 conference, which took place in Newcastle upon Tyne from 26-30 July 2010. All plenary and contributed papers have undergone an independent review; as a result of this review and the decisions of the Editorial Board most but not all of the contributions were accepted. The volume is organised as follows: it starts with notes in memory of Marcos Moshinsky, followed by contributions related to the Wigner Medal and Hermann Weyl prize. Then the invited talks at the plenary sessions and the public lecture are published followed by contributions in the parallel and poster sessions in alphabetical order. The Editors:Maia Angelova, Wojciech Zakrzewski, Véronique Hussin and Bernard Piette International Advisory Committee Michael BaakeUniversity of Bielefeld, Germany Gerald DunneUniversity of Connecticut, USA J F (Frank) GomesUNESP, Sao Paolo, Brazil Peter HanggiUniversity of Augsburg, Germany Jeffrey C LagariasUniversity of Michigan, USA Michael MackeyMcGill University, Canada Nicholas MantonCambridge University, UK Alexei MorozovITEP, Moscow, Russia Valery RubakovINR, Moscow, Russia Barry SandersUniversity of Calgary, Canada Allan SolomonOpen University, Milton Keynes, UK Christoph SchweigertUniversity of Hamburg, Germany Standing Committee Twareque AliConcordia University, Canada Luis BoyaSalamanca University, Spain Enrico CeleghiniFirenze University, Italy Vladimir DobrevBulgarian Academy of Sciences, Bulgaria Heinz-Dietrich DoebnerHonorary Member, Clausthal University, Germany Jean-Pierre GazeauChairman, Paris Diderot University, France Mo-Lin GeNankai University. China Gerald GoldinRutgers University, USA Francesco IachelloYale University, USA Joris Van der JeugtGhent University, Belgium Richard KernerPierre et Marie Curie University, France Piotr KielanowskiCINVESTAV, Mexico Alan KosteleckyIndiana University, USA Mariano del OlmoValladolid University, Spain George PogosyanUNAM, Mexico, JINR, Dubna, Russia Christoph SchweigertUniversity of Hamburg, Germany Reidun TwarockYork University, UK Luc VinetMontréal University, Canada Apostolos VourdasBradford University, UK Kurt WolfUNAM, Mexico Local Organising Committee Maia Angelova - ChairNorthumbria University, Newcastle Wojtek Zakrzewski - ChairDurham University, Durham Sarah Howells - SecretaryNorthumbria University, Newcastle Jeremy Ellman - WebNorthumbria University, Newcastle Véronique HussinNorthumbria, Durham and University of Montréal Safwat MansiNorthumbria University, Newcastle James McLaughlinNorthumbria University, Newcastle Bernard PietteDurham University, Durham Ghanim PutrusNorthumbria University, Newcastle Sarah ReesNewcastle University, Newcastle Petia SiceNorthumbria University, Newcastle Anne TaorminaDurham University, Durham Rosemary ZakrzewskiAccompanying persons programme Lighthouse Photograph by Bernard Piette: Souter Lighthouse, Marsden, Tyne and Wear, England

Angelova, Maia; Zakrzewski, Wojciech; Hussin, Véronique; Piette, Bernard

2011-03-01

152

PREFACE: Seventh International Conference on Dissociative Recombination: Theory, Experiments and Applications  

NASA Astrophysics Data System (ADS)

Dissociative Recombination is one of the outcomes of collisions between electrons and molecular ions. This reaction dominates many plasmas, dense as well as dilute. Therefore, knowledge about this reaction is highly relevant for astrophysics, atmospheric sciences, (non-)reactive plasmas, and fusion plasmas. A theoretical description of this process requires intensive ab initio quantum chemistry calculations as well as a detailed description of the electron collision process. The high density of states near the ionization energy of molecules renders calculations extremely difficult and complex. In experiments, both discharge and flowing afterglow experiments and fast beam and ion storage ring experiments, a steady development can be seen towards more detailed studies often at the quantum state resolved level including product internal state identification and very recently detailed vector properties such as fragment angular distributions. Thanks to an efficient interplay between experiment and theory dissociative recombination has progressed significantly over the last few years. The Seventh International Conference on Dissociative Recombination: Theory, Experiments, and Applications (DR2007) was organized by the Institute of Molecules and Materials at the Radboud University Nijmegen, The Netherlands and was held on the Wadden Island of Ameland. Earlier conferences in this series were held at Lake Louise, Alberta, Canada (1988), Saint Jacut, Bretagne, France (1992), Ein Gedi, Israel (1995), Nässlingen, Stockholm Archipelago, Sweden (1999), Chicago, USA, as part of the American Chemical Society meeting (2001), and in Mosbach, Germany (2004). Ameland and the Resort d'Amelander Kaap was chosen in the spirit of previous dissociative recombination conferences. It turned out to be a venue where discussions about dissociative recombination could take place around the clock both inside and outside while walking through dunes and on the beach. The conference was made possible by generous sponsors, whom we thank wholeheartedly: The Radboud University Nijmegen, The Institute for Molecules and Materials of the Radboud University Nijmegen, The Foundation for Fundamental Research on Matter (Stichting FOM), The Foundation PHYSICA (Stichting Physica), and The Netherlands Royal Academy of Sciences (KNAW). The organisational support by Erna Gouwens van Oss before and during the conference was essential for its success. The help of Thanja Lambrechts and Vitali Zhaunerchyk during the preparation of the proceedings is greatly appreciated. The delay in the publication of these proceedings is entirely caused by the editor. The authors of the contributions are thanked for the quality of their contributions, Wim J van der Zande, Editor Institute for Molecules and Materials, Radboud University Nijmegen, PO Box 9010, NL-6500 GL Nijmegen, The Netherlands Email: w.vanderzande@science.ru.nl Conference photograph Participants of the 7th International Conference on Dissociative Recombination: Theory, Experiments and Applications, taken in front of d'Amelander Kaap, the conference venue in Ameland, one of the Wadden Islands in the North of the Netherlands. 1. Dror Shafir21. Annemieke Petrignani41. Oumanou Motopan 2. Ioan Scheider22. Johanna Roos42. Max Berg 3. Nigel Adams23. Erna Gouwens van Oss43. Henrik Buhr 4. Hajime Tanuma24. Natalie de Ruette44. Ilya Fabrikant 5. Jonathan Tennyson25. Francois Wameu Tamo45. Claude Krantz 6. Vitali Zhaunerchyk26. Rainer Johnsen46. Michael Stenrup 7. Robert Continetti27. Viatcheslav Kokoouline47. Xavier Urbain 8. Stefan Rosén28. Hidekazu Takagi48. Evelyne Roueff 9. Erik Vigren29. Hans-Jakob Wörner49. Dirk Schwalm 10. Magdalena Kaminska30. Oskar Asvany50. Valery Ngassam 11. Chris Greene31. Lutz Lammich51. Julien Lecointre 12. Steffen Novotny32. Brandon Jordon-Thaden52. Ann Orel 13. Amy Schumak33. Wolf Diettrich Geppert53. Ihor Korolov 14. Gerard van Rooij34. Alexander Faure54. Romain Guerot 15. Wim van der Zande35. Mathias Hamberg55. Peet Hickman 16. Daan Schram36. Oldrich Novotny56. Christiaan Jungen 17. Dahbia Talb

van der Zande, Wim J.

2009-09-01

153

News and Announcements  

NASA Astrophysics Data System (ADS)

New Source of Information from Advertisers The Journal has a new feature effective with the June 1999 issue. If you would like additional information about our advertisers or their products, the quickest and easiest way to get it is via JCE Online: go to http://jchemed.chem.wisc.edu click on Ad Index This will take you to the list of advertisers, each conveniently linked to their home page. When you do contact our advertisers, be sure to tell them that you saw their ad in the Journal of Chemical Education. This is important to them, and to us. JCE Software Receives Award The Journal recently received notice that JCE Software portion of JCE Online has been selected as a Links2Go Key Resource for the topic of chemistry software. According to Links2Go (www.links2go.com), JCE Software's home page is one of the top fifty most accessed online resources in the area of chemistry software (currently ranked 45). Thanks to all of you who have visited JCE Online and the JCE Software area to make this possible. If you haven't visited the site yet, you can go there directly (http://jchemed.chem.wisc.edu/JCESoft/index.html ) as well as via our JCE Online home page. You will be greeted with a short video of nitrogen triiodide exploding and be able to get a wealth of information about our latest releases, software, CD-ROMs/Video, student resources, materials for authors and software developers. You can see color graphics from our CD-ROMs, video, and software,... Actually, if you are familiar with our Catalog, this is much better. 1999 Welch Chemistry Prize Richard N. Zare, the Marguerite Blake Wilbur Professor of Natural Science at Stanford University, has been named the 1999 recipient of the Welch Award in Chemistry for his lifetime achievements in physical and analytical chemistry. Zare's interests focus on the development and application of lasers and other novel instruments to explore chemical frontiers, ranging from molecules to chemical processes, from the inside of cells to the inside of meteorites. Zare and colleague Andrew Alexander are contributors to the Journal's Viewpoints series, sponsored by the Camille and Henry Dreyfus Foundation: "Anatomy of Elementary Chemical Reactions", JCE, 1998, 75, 1105. The Welch Award in Chemistry has been given by the Welch Foundation since 1972 to honor lifetime achievements in the field. Zare will be honored and presented with a $300,000 prize and gold medallion during the Foundation's annual award banquet held in Houston in October. NEACT Conference: Chemistry of Materials and Material Science The 61st Summer Conference of NEACT, the New England Association of Chemistry Teachers, will be held from Monday, August 9, through Thursday, August 12, at Massachusetts Institute of Technology in Cambridge, MA. The four-day conference will feature an exploration of the chemistry of materials and material science and effective methods of presenting these in the classroom and laboratory. The keynote address is "Teaching Solid State Chemistry at MIT" by Ron Latanision of MIT's Department of Material Science. Other presentations include "Driving Force", James Livingston; "The Colorful Nanoworld", Moungi Bawendi; "Molecular Wire-Based Amplification in Chemical Sensors", Timothy Swager; "Putting Solids in the Foundation", Arthur Ellis, George Lisensky, and Karen Nordell; "Miracle Materials", Valerie Wilcox; "Teaching About Polymers to Chemistry Students", Richard Stein; and "Using Software in Teaching About Polymers to Chemistry Students", William Vining. There will be a selection of workshops on the conference theme as well. The conference is open to all. The program chairperson is Peter J. Nassiff, Science Department Chairperson at Burlington High School. For further information contact Nassiff at 80 Gregory Road, Framingham, MA 01701; email: pnassiff@massed.net. Call for Symposia, Papers, & Workshops: 16th BCCE The Web site for the 16th Biennial Conference on Chemical Education, July 30-August 3, 2000, at the Un

1999-07-01

154

PREFACE: Preface  

NASA Astrophysics Data System (ADS)

The 9th International Conference on Photonics and Imaging in Biology and Medicine (PIBM 2010), combined with the 3rd Photonics and Optoelectronics Meetings (POEM 2010), was held from November 2-5, 2010, at Wuhan Science & Technology Convention & Exhibition Center, Wuhan, PR China. The present volume contains papers from a selection from the invited, oral, and poster presentations. PIBM is the largest international biomedical photonics conference series in Asia. It was initially held at HUST bi-yearly from 1999. After being held three times in Wuhan (1999, 2001 and 2003), it was hosted once in Tianjin (2005), before returning to Wuhan every year since 2006. PIBM is designed to bring together scientists, engineers and clinical researchers from a variety of disciplines engaged in applying optical science, photonics and imaging technologies to problems in biology and medicine. The scope of this conference ranges from basic research to instrumentation engineering, and biological and clinical studies. It is recognized as one of the largest and most comprehensive international conferences in China, and represents the highest level of worldwide research in this field. In the past ten years, 7 volumes of proceedings with a total of 672 papers were published by SPIE (International Society for Optical Engineering), and a volume with 75 papers was published by World Scientific Publishing Co. in 2007. Proceedings of PIBM 1999, 2001, 2003, 2005, 2006, 2008 and 2009 were indexed by EI Compendex, while proceedings of PIBM 1999, 2001, 2003, 2005, 2006, and 2007 were indexed by SCI. Some excellent papers were recommended for publication in the peer-reviewed Journal of Innovative Optical Health Sciences (JIOHS). An increasing number of young researchers present and exchange their innovative ideas on this friendly and professional platform, which has made PIBM an unforgettable annual meeting in Wuhan. This year PIBM attracted distinguished scholars in the field of biomedical photonics and imaging from all over the world, including the United States, Russia, Australia, Canada, Israel, France, Ireland, Japan, Korea and China. The major topics covered at the conference and presented in this volume include: Photonic Therapeutics, Diagnostics and Instrumentations; Tissue Optics and Laser Tissue Interaction; Biomedical Spectroscopy and Microscopy; Multimodal and Hybrid Biomedical Imaging; and Optical Molecular Imaging. The conference voted for the three best student papers; awards were presented to the participant students whose posters were recognized as excellent and who took part in the oral presentation competition. The conference received 133 submitted abstracts, and this volume of the Journal of Physics: Conference Series includes a selection of 53 excellent submissions. The Conference Secretariat and Local Organizing Committee deserve recognition for planning a smoothly run and productive conference with comprehensive, instructive lectures and innovative work displayed in poster presentations. The faculties and students from Britton Chance Center for Biomedical Photonics were dedicated to their work in reception and service during the conference. It is a pleasure to thank all of them for their efficient and hard work. We are also grateful for the financial support from 111 Project (B07038), and the assistance in organization and coordination from Wuhan National Laboratory for Optoelectronics and Huazhong University of Science and Technology. Finally, we would like to thank all the authors for their contributions to PIBM 2010 and all the members of the Committees for their cooperation and time spent reviewing submissions. Special thanks are due to the Advisory Committee members Shu Chien, Aaron Ciechanover, Steve Dahms, Da Hsuan Feng, Steven R Goodman, Brian Salzberg, Fujia Yang, Jianquan Yao, Baoyong Zheng and Olivia Ho Cheng for their participation on-site, and their significant contributions to the conference. Wuhan, PR ChinaDecember, 2010 Qingming LuoLihong V WangValery V TuchinConference Chairs 9th International Conference on P

Luo, Qingming; Wang, Lihong V.; Tuchin, Valery V.

2011-02-01

155

Soil moisture changes in two experimental sites in Eastern Spain. Irrigation versus rainfed orchards under organic farming  

NASA Astrophysics Data System (ADS)

Within the Soil Erosion and Degradation Research Group Experimental Stations, soil moisture is being researched as a key factor of the soil hydrology and soil erosion (Cerdà, 1995; Cerda, 1997; Cerdà 1998). This because under semiarid conditions soil moisture content plays a crucial role for agriculture, forest, groundwater recharge and soil chemistry and scientific improvement is of great interest in agriculture, hydrology and soil sciences. Soil moisture has been seeing as the key factor for plant photosynthesis, respiration and transpiration in orchards (Schneider and Childers, 1941) and plant growth (Veihmeyer and Hendrickson, 1950). Moreover, soil moisture determine the root growth and distribution (Levin et al., 1979) and the soil respiration ( Velerie and Orchard, 1983). Water content is expressed as a ratio, ranging from 0 (dry) to the value of soil porosity at saturation (wet). In this study we present 1-year of soil moisture measurements at two experimental sites in the Valencia region, Eastern Spain: one representing rainfed orchard typical from the Mediterranean mountains (El Teularet-Sierra de Enguera), and a second site corresponding to an irrigated orange crop (Alcoleja). The EC-5 soil moisture smart sensor S-SMC-M005 integrated with the field-proven ECH2O™ Sensor and a 12-bit A/D has been choosen for measuring soil water content providing ±3% accuracy in typical soil conditions. Soil moisture measurements were carried out at 5-minute intervals from January till December 2012. In addition, soil moisture was measured at two depths in each landscape: 2 and 20 cm depth - in order to retrieve a representative vertical cross-section of soil moisture. Readings are provided directly from 0 (dry) to 0.450 m3/m3 (wet) volumetric water content. The soil moisture smart sensor is conected to a HOBO U30 Station - GSM-TCP which also stored 5-minute temperature, relative humidity, dew point, global solar radiation, precipitation, wind speed and wind direction data. These complementary atmospheric measurements will serve to explain the intraannual and vertical variations observed in the soil moisture content in both experimental landscapes. This kind of study is aimed to understand the soil moisture content in two different environments such as irrigated rainfed orchards in a semi-arid region. For instance, these measurements have a direct impact on water availability for crops, plant transpiration and could have practical applications to schedule irrigation. Additionally, soil water content has also implications for erosion processes. Key Words: Water, Agriculture, Irrigation, Eastern Spain, Citrus. Acknowledgements The research projects GL2008-02879/BTE and LEDDRA 243857 supported this research. References Cerdà, A. 1995. Soil moisture regime under simulated rainfall in a three years abandoned field in Southeast Spain. Physics and Chemistry of The Earth, 20 (3-4), 271-279. Cerdà, A. 1997. Seasonal Changes of the Infiltration Rates in a Typical Mediterranean Scrubland on Limestone in Southeast Spain. Journal of Hydrology, 198 (1-4) 198-209 Cerdà, A. 1998. Effect of climate on surface flow along a climatological gradient in Israel. A field rainfall simulation approach. Journal of Arid Environments, 38, 145-159. Levin, I., Assaf, R., and Bravdo, B. 1979. Soil moisture and root distribution in an apple orchard irrigated by tricklers. Plant and Soil, 52, 31-40. Schneider, G. W. And Childers, N.F. 1941. Influence of soil moisture on photosynthesis, respiration and transpiration of apples leaves. Plant Physiol., 16, 565-583. Valerie, A. and Orchard, F.J. Cook. 1983. Relationship between soil respiration and soil moisture. Soil Biology and Biochemistry, 15, 447-453. Veihmeyer, F. J. and Hendrickson, A. H. 1950. Soil Moisture in Relation to Plant Growth. Annual Review of Plant Physiology, 1, 285-304.

Azorin-Molina, Cesar; Vicente-Serrano, Sergio M.; Cerdà, Artemi

2013-04-01

156

Obituary: John Beverley Oke, 1928-2004  

NASA Astrophysics Data System (ADS)

John Beverley (Bev) Oke passed away of heart failure early on 2 March 2004 at his Victoria, B.C. home. Bev's insatiable scientific curiosity led to fundamental contributions in many areas of stellar and extragalactic astronomy, including the development of advanced instrumentation for the largest optical telescopes and the mentoring of scores of grateful students and colleagues. Bev Oke was born in Sault Ste. Marie, ON, Canada on 23 March 1928, the son of Lyla Parteshuk and the Rev. C. Clare Oke. He entered the University of Toronto in 1945 to study physics with a steadily increasing fraction of astronomy, receiving his BA in 1949. Summer employment at the David Dunlap Observatory (DDO, 1948) and at the Dominion Observatory (Ottawa, 1949, 1950) sealed his interest in astronomy as a career. For his MA thesis (1950, Toronto), performed under theoretician Ralph Williamson, he made interior models of the Sun, and was proud to have proved that the proton-proton cycle was indeed the source of solar energy. Upon entering Princeton University he worked with Martin Schwarzschild on stellar interiors models and Lyman Spitzer on interstellar lines. A lifelong friendship with Alan Sandage began during Bev's second year while Alan was a post-doc at Princeton. During Bev's third year he spent three months in Pasadena with Lyman obtaining data for his thesis on Of stars. While in Pasadena he began a second life-long collaboration with Jesse Greenstein, an astronomer whose approach to science Bev deeply respected. In the small field of astronomy in that era, Bev wrote to DDO Director Jack Heard indicating the nearing completion of his PhD studies and his interest in a position. This led to a lectureship at the University of Toronto (1953-1956), followed by an Assistant Professorship (1956-1958). Bev's interest in instruments began at this time, when he built a device to convert photographic density to intensity, and worked with DDO engineer-machinist Jerry Longworth to implement one of the first two photoelectric scanners ever built. His main interests at the time were the classification of the thousands of stellar spectra in the DDO archives, and studies of Cepheids using his new spectrum scanner. At a Halloween party in 1954 he met Nancy Sparling. Together they initiated a life partnership factually punctuated by their August, 1955 marriage and the arrival of their children, Christopher (1957), Kevin (1958), Jennifer (1961) and Valerie (1966). Their home was notable to all for the deep aura of familial love and joy in the pursuit of knowledge and accomplishments. In winter 1957-58 Jesse Greenstein invited Bev to join Cal Tech, where he became an Associate Professor (1958) and then Professor (1964); during the period 1970-1978 he was Hale Observatories Director. With the large telescopes at Mount Wilson and Mount Palomar, astronomy there could aspire to be the best in the world, but this required instrumentation of the highest capabilities. Bev soon began to contribute in a major way to their instrumentation excellence following examples established, among others, by Ira Bowen and Horace Babcock. His began by improving the DC amplifiers then in use; constructing a high-spectral-resolution, scanning spectrophotometer; designing vacuum Dewars for astronomical applications; creating pulse counting systems for photoelectric devices; and building the innovative 32-channel spectrum scanner for the Palomar 5-m telescope that was completed in 1968. Bev built instruments to advance astronomy and to satisfy his wide-ranging curiosity about nature. With the first single-channel spectrum scanner he built at Cal Tech he played a key role in the discovery of the redshift of 3C273. Using his multi-channel spectrometer with students and colleagues, he pursued a highly successful quest to establish accurate spectral-energy distributions for diverse classes of stars and galaxies, based upon rigorous calibration against physical standards. Through this painstaking work he enabled the advances of astronomers worldwide for subsequent generations and extend

Hesser, James Edward

2004-12-01

157

Verochka Zingan or recollections from the Physics Department of the Moscow University  

NASA Astrophysics Data System (ADS)

The author recollects his studentship during 70-th years at the Physics Department of the Moscow University. He was graduated from the theoretical Physics Department in 1977. The Rectors of the University that times were I.G. Petrovskii, R.V. Khokhlov and A.A. Logunov. The dean of the Physics Department was V.S. Fursov. As a particular event a meet with the former prime-minister of the USSR A.N. Kosygin is reported. Between professors mentioned throughout the recollections are A.I.Kitaigorodskii, Ya. B. Zel'dovich, D.D. Ivanenko, A.A. Sokolov, A.A. Vlasov, V.B. Braginsky, I.M. Ternov, L.A. Artsimovich, E.P. Velikhov and other, including that which became University professors later. A great number of colleagues from the Physics, Chemistry, Phylological and Historical Departments of the Moscow University are mentioned. Particularly, the students which entered the group 113 in 1971 and finished the group 601 in 1977 are listed. The recollections include 5 parts. Persons cited throughout the paper: A.N. Kosygin, A.S. Golovin, V. Kostyukevich, I.M. Ternov, E.G. Pozdnyak, A. N. Matveev, V.P. Elyutin, V.V. Kerzhentsev, 113 academic group (1971), V. Topala, E.A. Marinchuk, P.Paduraru, A.I. Kitaygorodski, A. Leahu, S. Berzan, B. Ursu, I. Coanda (Koade), M. Stefanovici, O. Bulgaru, A. Iurie-Apostol, A.S. Davydov, M.I. Kaganov, I.M. Lifshitz, Ya. B. Zel'dovich, A.Zhukov, A.I. Buzdin, N.S. Perov, V. Dolgov, P. Vabishchevich, A.A. Samarskii, V. Makarov, Irina Kamenskih, A.A. Arsen'ev, L.A. Artsimovich, A.A. Tyapkin, B.M. Pontecorvo, D.I. Blokhintsev, I.G. Petrovskii, R.V. Khokhlov, V.N. Rudenko, A.A. Sokolov, D.D. Ivanenko (Iwanenko), A.A. Vlasov, V.N. Ponomarev, N.N. Bogolyubov, N.N. Bogolyubov (Jr), V.Ch. Zhukovskii, Tamara Tarasova, Zarina Radzhabova (Malovekova), V.Malovekov, Tatiana Shmeleva, Alexandra C.Nicolescu, Tatiana Nicolescu, Rano Mahkamova, Miriam Yandieva, Natalia Germaniuk (Grigor'eva), E. Grigor'ev, A. Putro, Elena Nikiforova, B. Kostrykin, Galia Laufer, K. Laufer, Yu. El'nitskii, Gh. Nemtoi, Yu. Oprunenko, N.N. Semenov, Varun Sahni, A.A. Starobinskii, Liusea Burca, Serge Rollet, Tatyana Davydova, Zinaida Uglichina (Khafizova), T.Filippova, V.S. Filippov, Vera Zingan (Stefanovici), B.A. Gaina, E.F. Gaina, Valeri Gaina, A. Kirnitskii, M. Kavalerchik, Margarita Kavalerchik, Mark Rainis, L.I. Sedov, D. Mangeron, S. Taltu (Coanda), Z. Sali(Chitoroaga, Kitoroage), Raisa M. Gorbachova, Maria Bulgaru, S. Pavlichenko, Nadezhda Shishkan, A.N. Matveev, N.Ya. Tyapunina, D.F. Kiselev, V.A. Petukhov, N.Ch. Krutitskaya, G.N. Medvedev, A.A. Shishkin,I.A. Shishmarev,A.G. Sveshnikov, A.B. Vasil'eva, A.G. Yagola, I.I. Ol'hovskii, V.V. Kravtsov, V.V.Petkevich, V.I. Grigor'ev, V.S. Rostovskii, V.V. Balashov, B.I. Spasskii, V.D. Krivchenkov, M.B. Menskii, V.Ya. Fainberg, V.G. Kadyshevskii, B.K. Kerimov, V.A. Matveev, I.A. Kvasnikov, D.V. Gal'tsov, V.R. Khalilov, G.A. Chizhov,I.A. Obukhov, V.N. Melnikov, A.A. Logunov, A.N. Tavkhelidze,Yu.S. Vladimirov, N.F. Florea (Floria), B.A. Lysov, V.D. Kukin, 601-academic group (1977), A.R. Khokhlov, P.L. Kapitza, S.P. Kapitza, Ion C. Inculet, Ion I. Inculet,W. Bittner, Nikolay Florea (Floria), M.M. Heraskov, N.V. Sklifosovskii, N.N. Bantysh-Kamenskii, N.D. Zelinskii, Olga Crusevan (Krushevan), Eugenia Crusevan (Krushevan),L.S. Berg, I. Buzdugan (Buzdyga),S.G. Lazo, M.K. Grebenchya (Grebencea), V.T. Kondurar (Conduraru), E.A. Grebenikov, K.F. Teodorchik, V.A. Albitzky, M.V. Nazarov, Tatiana Nazarova, V. P. Oleinikov, O.V. Bolshakov, D.M. Nikolaev, V. Afanas'ev, Olga Tatarinskaya, Yu.V. Karaganchou, B.A. Volkov, V.K. Turta, S. Varzar, C. Sochichiu, V.B. Braginsky, V.S. Fursov, L.I. Brezhnev, V.I. Sobolev (INP MSU), V.A. Smirnov (INP MSU), L.D. Landau, M.A. Leontovich, A.G. Loskutova, Yu.M. Loskutov, N.S. Akulov, V.B. Gostev, A.R. Frenkin, N.N. Kolesnikov, A. Vasil'ev, V.N. Tsytovich, Ya.A. Frenkel, N.V. Mitskievich, E.A. Grebenikov, A.N. Prokopenya, A. Einstein, L.I. Sedov, A.N. Kolmogorov, V.I. Arnold, G.I.Popov, R.Z. Sagdeev, A.A. Kokoshin, A.E. Marinchuk, D.V. Gal'tsov, V.I. Petukhov, S.I. Vacaru,

Gaina, Alex

158

List of Posters  

NASA Astrophysics Data System (ADS)

List of Posters: Dark matter annihilation in the Galactic galo, by Dokuchaev Vyacheslav, et al. NEMO developments towards km3 telescope in the Mediterranean Sea. The NEMO project. Neutrino Mediterranean Observatory By Antonio Capone, NEMO Collaboration. Alignment as a result from QCD jet production or new still unknown physics at LHC? By Alexander Snigirev. Small-scale fluctuations of extensive air showers: systematics in energy and muon density estimation By Grigory Rubtsov. SHINIE: Simulation of High-Energy Neutrino Interacting with the Earth By Lin Guey-Lin, et al.. Thermodynamics of rotating solutions in n+1 dimensional Einstein - Maxwell -dilation gravity By Ahmad Sheykhi, et al.. Supernova neutrino physics with future large Cherenkov detectors By Daniele Montanino. Crossing of the Cosmological Constant Barrier in the string Inspired Dark Energy Model By S. Yu. Vernov. Calculations of radio signals produced by ultra-high and extremely high energy neutrino induced cascades in Antarctic ice By D. Besson, et al.. Inflation, Cosmic Acceleration and string Gravity By Ischwaree Neupane. Neutrino Physics: Charm and J/Psi production in the atmosphere By Liudmila Volkova. Three generation flavor transitions and decays of supernova relic neutrinos By Daniele Montanino. Lattice calculations & computational quantum field theory: Sonification of Quark and Baryon Spectra By Markum Harald, et al.. Generalized Kramers-Wannier Duality for spin systems with non-commutative symmetry By V. M. Buchstaber, et al.. Heavy ion collisions & quark matter: Nuclear matter jets and multifragmentation By Danut Argintaru, et al.. QCD hard interactions: The qT-spectrum of the Higgs and Slepton-pairs at the LHC By Guiseppe Bozzi. QCD soft interactions: Nonperturbative effects in Single-Spin Asymmetries: Instantons and TMD-parton distributions By Igor Cherednikov, et al.. Gluon dominance model and high multiplicity By Elena Kokoulina. Resonances in eta pi- pi- pi+ system By Dmitry Ryabchikov. Saturation effects in diffractive scattering at LHC By Oleg Selugin. A nonperturbative expansion method in QCD and R-related quantities By Igor Solovtsov. Z-scaling and high multiplicity particle Production in bar pp/pp & AA collisions at Tevatron and RHIC By Mikhail Tokarev. Scaling behaviour of the reactionsdd - > p? /3H and pd - > pd with pT at energy I-2 GeV By Yuri Uzikov. [ADS Note: Title formula can not be rendered correctly in ASCII.] CP violation, rare decays, CKM: Precision Measurements of the Mass of the Top Quark at CDF (Precision Top Mass Measurements at CDF) By Daniel Whiteson. Measurement of the Bs Oscillation at CDF By Luciano Ristori. The Bs mixing phase at LHCb By J. J. van Hunen. ATLAS preparations for precise measurements of semileptonic rare B decays By K. Toms. Hadron spectroscopy & exotics: Searches for radial excited states of charmonium in experiments using cooled antiproton beams By M. Yu. Barabanov. Retardation effects in the rotating string model By Fabien Buisseret and Claude Semay. Final results from VEPP-2M (CMD-2 and SND) By G. V. Fedotovich. Heavy Quark Physics: Prospects for B physics measurements using the CMS detector at the LHC By Andreev Valery. Heavy flavour production at HERA-B By Andrey Bogatyrev. B-Meson subleading form factors in the Heavy Quark Effective Theory (HQET) By Frederic Jugeau. Beyond the Standard Model: Monopole Decay in a Variable External Field By Andrey Zayakin. Two-Loop matching coefficients for the strong coupling in the MSSM By Mihaila Luminita. Test of lepton flavour violation at LHC By Hidaka Keisho. Looking at New Physics through 4 jets and no ET By Maity Manas. Are Preons Dyons? Naturalness of Three Generations By Das Chitta Ranjan. SUSY Dark Matter at Linear Collider By Sezen Sekmen, Mehmet Zeyrek. MSSM light Higgs boson scenario and its test at hadron colliders By Alexander Belyaev. Antiscalar Approach to Gravity and Standard Model By E. Mychelkin. GRID distributed analysis in high energy physics: PAX: Physics Analysis Design and Application on the GRID By Martin Erdmann

159

EDITORIAL: Colloidal suspensions Colloidal suspensions  

NASA Astrophysics Data System (ADS)

Special issue in honour of Henk Lekkerkerker's 65th birthday Professor Henk N W Lekkerkerker is a world-leading authority in the field of experimental and theoretical soft condensed matter. On the occasion of his 65th birthday in the summer of 2011, this special issue celebrates his many contributions to science. Henk Lekkerkerker obtained his undergraduate degree in chemistry at the University of Utrecht (1968) and moved to Calgary where he received his PhD in 1971. He moved to Brussels as a NATO fellow at the Université Libre de Bruxelles and was appointed to an assistant professorship (1974), an associate professorship (1977) and a full professorship (1980) in physical chemistry at the Vrije Universiteit Brussel. In 1985 he returned to The Netherlands to take up a professorship at the Van 't Hoff Laboratory, where he has been ever since. He has received a series of awards during his career, including the Onsager Medal (1999) of the University of Trondheim, the Bakhuys Roozeboom Gold Medal (2003) of the Royal Dutch Academy of Arts and Sciences (KNAW), the ECIS-Rhodia European Colloid and Interface Prize (2003), and the Liquid Matter Prize of the European Physical Society (2008). He was elected a member of KNAW in 1996, was awarded an Academy Chair position in 2005, and has held several visiting lectureships. Henk's work focuses on phase transitions in soft condensed matter, and he has made seminal contributions to both the theoretical and experimental aspects of this field. Here we highlight three major themes running through his work, and a few selected publications. So-called depletion interactions may lead to phase separation in colloid-polymer mixtures, and Henk realised that the partitioning of polymer needs to be taken into account to describe the phase behaviour correctly [1]. Colloidal suspensions can be used as model fluids, with the time- and length-scales involved leading to novel opportunities, notably the direct observation of capillary waves at a fluid-fluid interface [2]. Together with Remco Tuinier, Henk has recently completed a book in this area which is to appear later this year. A major theme in Henk's research is that of phase transitions in lyotropic liquid crystals. Henk, together with Daan Frenkel and Alain Stroobants, realized in the 1980s that a smectic phase in dispersions of rod-like particles can be stable without the presence of attractive interactions, similar to nematic ordering as predicted earlier by Onsager [3]. Together with Gert-Jan Vroege he wrote a seminal review in this area [4]. Henk once said that 'one can only truly develop one colloidal model system in one's career' and in his case this must be that of gibbsite platelets. Initially Henk's group pursued another polymorph of aluminium hydroxide, boehmite, which forms rod-like particles [5], which already displayed nematic liquid crystal phases. The real breakthrough came when the same precursors treated the produced gibbsite platelets slightly differently. These reliably form a discotic nematic phase [6] and, despite the polydispersity in their diameter, a columnar phase [7]. A theme encompassing a wide range of soft matter systems is that of colloidal dynamics and phase transition kinetics. Many colloidal systems have a tendency to get stuck in metastable states, such as gels or glasses. This is a nuisance if one wishes to study phase transitions, but it is of great practical significance. Such issues feature in many of Henk's publications, and with Valerie Anderson he wrote a highly cited review in this area [8]. Henk Lekkerkerker has also invested significant effort into the promotion of synchrotron radiation studies of colloidal suspensions. He was one of the great supporters of the Dutch-Belgian beamline 'DUBBLE' project at the ESRF [9]. He attended one of the very first experiments in Grenoble in 1999, which led to a Nature publication [7]. He was strongly involved in many other experiments which followed and also has been a member of the beam line board. The most recent synchotron data are reported in this issue and Henk

Petukhov, Andrei; Kegel, Willem; van Duijneveldt, Jeroen

2011-05-01

160

EDITORIAL: Focus on Plasma Medicine  

NASA Astrophysics Data System (ADS)

'Plasma Healthcare' is an emerging interdisciplinary research topic of rapidly growing importance, exploring considerable opportunities at the interface of plasma physics, chemistry and engineering with life sciences. Some of the scientific discoveries reported so far have already demonstrated clear benefits for healthcare in areas of medicine, food safety, environmental hygiene, and cosmetics. Examples include ongoing studies of prion inactivation, chronic wound treatment and plasma-mediated cancer therapy. Current research ranges from basic physical processes, plasma chemical design, to the interaction of plasmas with (i) eukaryotic (mammalian) cells; (ii) prokaryotic (bacteria) cells, viruses, spores and fungi; (iii) DNA, lipids, proteins and cell membranes; and (iv) living human, animal and plant tissues in the presence of biofluids. Of diverse interests in this new field is the need for hospital disinfection, in particular with respect to the alarming increase in bacterial resistance to antibiotics, the concomitant needs in private practices, nursing homes etc, the applications in personal hygiene—and the enticing possibility to 'design' plasmas as possible pharmaceutical products, employing ionic as well as molecular agents for medical treatment. The 'delivery' of the reactive plasma agents occurs at the gaseous level, which means that there is no need for a carrier medium and access to the treatment surface is optimal. This focus issue provides a close look at the current state of the art in Plasma Medicine with a number of forefront research articles as well as an introductory review. Focus on Plasma Medicine Contents Application of epifluorescence scanning for monitoring the efficacy of protein removal by RF gas-plasma decontamination Helen C Baxter, Patricia R Richardson, Gaynor A Campbell, Valeri I Kovalev, Robert Maier, James S Barton, Anita C Jones, Greg DeLarge, Mark Casey and Robert L Baxter Inactivation factors of spore-forming bacteria using low-pressure microwave plasmas in an N2 and O2 gas mixture M K Singh, A Ogino and M Nagatsu Degradation of adhesion molecules of G361 melanoma cells by a non-thermal atmospheric pressure microplasma H J Lee, C H Shon, Y S Kim, S Kim, G C Kim and M G Kong The acidification of lipid film surfaces by non-thermal DBD at atmospheric pressure in air A Helmke, D Hoffmeister, N Mertens, S Emmert, J Schuette and W Vioel Reduction and degradation of amyloid aggregates by a pulsed radio-frequency cold atmospheric plasma jet D L Bayliss, J L Walsh, G Shama, F Iza and M G Kong The effect of low-temperature plasma on bacteria as observed by repeated AFM imaging René Pompl, Ferdinand Jamitzky, Tetsuji Shimizu, Bernd Steffes, Wolfram Bunk, Hans-Ulrich Schmidt, Matthias Georgi, Katrin Ramrath, Wilhelm Stolz, Robert W Stark, Takuya Urayama, Shuitsu Fujii and Gregor Eugen Morfill Removal and sterilization of biofilms and planktonic bacteria by microwave-induced argon plasma at atmospheric pressure Mi Hee Lee, Bong Joo Park, Soo Chang Jin, Dohyun Kim, Inho Han, Jungsung Kim, Soon O Hyun, Kie-Hyung Chung and Jong-Chul Park Cell permeabilization using a non-thermal plasma M Leduc, D Guay, R L Leask and S Coulombe Physical and biological mechanisms of direct plasma interaction with living tissue Danil Dobrynin, Gregory Fridman, Gary Friedman and Alexander Fridman Nosocomial infections-a new approach towards preventive medicine using plasmas G E Morfill, T Shimizu, B Steffes and H-U Schmidt Generation and transport mechanisms of chemical species by a post-discharge flow for inactivation of bacteria Takehiko Sato, Shiroh Ochiai and Takuya Urayama Low pressure plasma discharges for the sterilization and decontamination of surfaces F Rossi, O Kylián, H Rauscher, M Hasiwa and D Gilliland Contribution of a portable air plasma torch to rapid blood coagulation as a method of preventing bleeding S P Kuo, O Tarasenko, J Chang, S Popovic, C Y Chen, H W Fan, A Scott, M Lahiani, P Alusta, J D Drake and M Nikolic A two-dimensional cold atmospheric plasma jet array for uniform treatment of large-area

Morfill, G. E.; Kong, M. G.; Zimmermann, J. L.

2009-11-01