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1

Astronomía y Física: un matrimonio Sartriano  

Microsoft Academic Search

Desde el siglo XVII, Física y Astronomía han formado un matrimonio similar al de Sartre y Beauvoir: lleno de amores contingentes, pero firme y duradero. En la charla examino tres de los frutos más recientes de este matrimonio: - La confirmación de la Relatividad General con datos astronómicos. - Astrofísica y Física de neutrinos. - Teorías de supercuerdas y astronomía.

H. Vucetich

1999-01-01

2

Astronomía y Física: un matrimonio Sartriano  

NASA Astrophysics Data System (ADS)

Desde el siglo XVII, Física y Astronomía han formado un matrimonio similar al de Sartre y Beauvoir: lleno de amores contingentes, pero firme y duradero. En la charla examino tres de los frutos más recientes de este matrimonio: - La confirmación de la Relatividad General con datos astronómicos. - Astrofísica y Física de neutrinos. - Teorías de supercuerdas y astronomía.

Vucetich, H.

3

On Truth Persistence Patrcia Amaral,a  

E-print Network

1 On Truth Persistence Patrícia Amaral,a Fabio Del Preteb a University of North Carolina at Chapel persistence of the truth of a proposition over time and displays specific contextual constraints (TP night.' Sentences (1a,b) can be truthfully uttered in the following context: the speaker has planned

Paris-Sud XI, Université de

4

PLATO: Predictive Latency-Aware Total Ordering Mahesh Balakrishnan, Ken Birman and Amar Phanishayee  

E-print Network

PLATO: Predictive Latency-Aware Total Ordering Mahesh Balakrishnan, Ken Birman and Amar Phanishayee {mahesh, ken, amar}@cs.cornell.edu Department of Computer Science Cornell University Abstract PLATO of PLATO on the Emulab testbed, and show that it drives down deliv- ery latencies by more than a factor

Garlan, David

5

Wake Up, It Is 2013! Commentary on Luiz Amaral and Tom Roeper's Article  

ERIC Educational Resources Information Center

This article examines the Multiple Grammars (MG) theory proposed by Luiz Amaral and Tom Roeper in the present issue and presents a critique of the research that went into the theory. Topics discussed include the allegation that the bilinguals and second language learners in the original article are primarily students in an academic setting, Amaral…

Muysken, Pieter

2014-01-01

6

ELIZABETH H. AMARAL and H. ARNOLD CARR Experimental Fishing for Squid  

E-print Network

ELIZABETH H. AMARAL and H. ARNOLD CARR Experimental Fishing for Squid With Lights in Nantucket Sound Nantucket Sound squid survey areas. Elizabeth H. Amaral and H. Arnold Carr consecutive years and has caught squid in them each year. He first be- came interested in this type of project

7

Discriminative Accelerometer Patterns in Children Physical Activities Yang Mu, Henry Lo, Kevin Amaral, Wei Ding, Scott E. Crouter  

E-print Network

Discriminative Accelerometer Patterns in Children Physical Activities Yang Mu, Henry Lo, Kevin Amaral, Wei Ding, Scott E. Crouter University of Massachusetts Boston INTRODUCTION: Physical activity (PA

Ding, Wei

8

Chy 475--First-order Perturbation Theory Spring 2013 Dr. F. Amar  

E-print Network

Chy 475--First-order Perturbation Theory Spring 2013 Dr. F. Amar The method of perturbation theory and wavefunctions for the two problems. First we will develop the framework of first order perturbation theory to know E(0) and (0). We don't yet know E and but presumably direct solution of the differential equation

Amar, François G.

9

Dictionary-Based Fast Transform for Text Compression Weifeng Sun Nan Zhang Amar Mukherjee  

E-print Network

transform algorithm. With a static generic dic- tionary, StarNT achieves a superior compression ratio than the text into some intermediate form, which can be compressed with better efficiency. The trans- formedDictionary-Based Fast Transform for Text Compression Weifeng Sun Nan Zhang Amar Mukherjee School

Mukherjee, Amar

10

Commentary to "Multiple Grammars and Second Language Representation," by Luiz Amaral and Tom Roeper  

ERIC Educational Resources Information Center

In this commentary, the author defends the Multiple Grammars (MG) theory proposed by Luiz Amaral and Tom Roepe (A&R) in the present issue. Topics discussed include second language acquisition, the concept of developmental optionality, and the idea that structural decisions involve the lexical dimension. The author states that A&R's…

Pérez-Leroux, Ana T.

2014-01-01

11

Teaching Labor Relations with "Norma Rae"  

ERIC Educational Resources Information Center

Undergraduate business students in North America are often unfamiliar with the labor organizing process and frequently fail to identify with the reasons why workers join unions. This article suggests a discussion exercise based on the 1979 film, "Norma Rae," by 20th Century Fox, as an effective tool for familiarizing students with fundamental…

Taylor, Vicki Fairbanks; Provitera, Michael J.

2011-01-01

12

NORMAS GERAIS PARA INGRESSO POR TRANSFERNCIA EXTERNA  

E-print Network

1 NORMAS GERAIS PARA INGRESSO POR TRANSFER�NCIA EXTERNA (BRASIL) PERÍODO 2013.1 PRAZO PARA REQUERER deverá entregar a convalidação dos estudos concedida pela Secretaria Estadual de Educação, no Brasil. Se aceita) - Título de Eleitor; - Certificado de Dispensa de Incorporação; - CPF; #12;2 4 - Originais

13

NORMAS GERAIS PARA INGRESSO POR TRANSFERNCIA EXTERNA  

E-print Network

1 NORMAS GERAIS PARA INGRESSO POR TRANSFER�NCIA EXTERNA (BRASIL) PERÍODO 2013.2 PRAZO PARA REQUERER deverá entregar a convalidação dos estudos concedida pela Secretaria Estadual de Educação, no Brasil. Se aceita) - Título de Eleitor; - Certificado de Dispensa de Incorporação; - CPF; #12;2 4 - Originais

14

Amar and Shamir Module maps to appear in Nucleic Acids Research Title: Constructing module maps for integrated analysis of heterogeneous biological  

E-print Network

Amar and Shamir ­ Module maps to appear in Nucleic Acids Research 1 Title: Constructing module maps to appear in Nucleic Acids Research 3 Introduction Biological networks provide a comprehensive overview-protein interactions, genetic interactions, systems biology. #12;Amar and Shamir ­ Module maps to appear in Nucleic

Shamir, Ron

15

NuSTAR Norma Arm Survey  

NASA Astrophysics Data System (ADS)

One part of the Galaxy that was surveyed during the Nuclear Spectroscopic Array (NuSTAR) primary mission is a region of the Norma Arm that was observed with Chandra in 2011. The Norma Arm is a region of recent star formation containing a large number of OB associations and was targeted to search for and study X-ray sources associated with massive stars, such as high-mass X-ray binaries (HMXBs) and colliding wind binaries (CWBs). The Norma Chandra survey covered a 2 deg x 0.8 deg field and NuSTAR has observed about half of this field to date with ~50 ks depth. We detect at least 29 NuSTAR sources in this region and present their spectral and timing properties. Four of these sources are relatively well-studied and have been observed with a number of other instruments; NuSTAR is providing new insights into these sources, which include two pulsar wind nebulae, a black hole binary, and an obscured HMXB. Four sources are NuSTAR discoveries, at least two of which are transients. We have obtained infrared spectra of the IR counterparts of seven of the remaining 21 NuSTAR sources to facilitate their identification. Two sources have high-mass stellar counterparts and are likely HMXBs or CWBs. Five have low-mass counterparts and are likely intermediate polars or low-mass X-ray binaries; one of these sources has spectral and timing properties that are consistent with a black hole binary. The 14 sources without detected IR counterparts are likely a mixture of distant intermediate polars, active galactic nuclei, and magnetars.

Fornasini, Francesca; NuSTAR

2015-01-01

16

Magnetoencephalography with an atomic magnetometer H. Xia, A. Ben-Amar Baranga, D. Hoffman, and M. V. Romalisa  

E-print Network

Magnetoencephalography with an atomic magnetometer H. Xia, A. Ben-Amar Baranga, D. Hoffman, and M and mapping of brain magnetic fields evoked by auditory stimulation with a noncryogenic magnetometer based and allows the use of a compact magnetic shield with a high shielding factor. The magnetometer sensitivity

Romalis, Mike

17

avid Amaral wanted to watch the young brain take shape. He thought that studying post-mortem brains under the micro-  

E-print Network

-mortem brains under the micro- scope would help him to work out why children with autism often have. Thebanksmaycontainhundredsoreventhousandsofbrains--butnot from children, and not necessarily in the best condition. Amaral, who is director to the challenges of collecting and storing children's brains. Parents must give permission shortly after

Nguyen, Danh

18

NORMAS GERAIS PARA INGRESSO COMO PORTADOR DE DIPLOMA DE  

E-print Network

1 NORMAS GERAIS PARA INGRESSO COMO PORTADOR DE DIPLOMA DE GRADUA��O (BRASIL) PERÍODO 2013.2 PRAZO PORTADOR DE DIPLOMA DE GRADUA��O DO BRASIL I­DAS CONDI��ES Portadores de Diploma de Graduação de Cursos; - Certificado de Dispensa de Incorporação; - CPF; Se candidato estrangeiro: - Certificado de Concl

19

NORMAS GERAIS PARA INGRESSO COMO PORTADOR DE DIPLOMA DE  

E-print Network

1 NORMAS GERAIS PARA INGRESSO COMO PORTADOR DE DIPLOMA DE GRADUA��O (BRASIL) PERÍODO 2013.1 PRAZO COMO PORTADOR DE DIPLOMA DE GRADUA��O DO BRASIL I­DAS CONDI��ES Portadores de Diploma de Graduação de; - Certificado de Dispensa de Incorporação; - CPF; Se candidato estrangeiro: - Certificado de

20

NORMA E. CONNER, PhD, RN University of Central Florida College of Nursing  

E-print Network

NORMA E. CONNER, PhD, RN University of Central Florida College of Nursing 12201 Research Parkway Jersey Newark, NJ Nursing Research 1996 MSN Rutgers, The State University of New Jersey Newark, NJ Community Health Nursing Clinical Nurse Specialist 1983 BSN Towson State University, Baltimore, MD Nursing

Wu, Shin-Tson

21

Proceedings of the Nordic Conference on Mathematics Teaching (NORMA-94) Lahti 1994. Research Report 141.  

ERIC Educational Resources Information Center

This report contains papers from the Nordic Conference on Mathematics Teaching (NORMA-94). The first three papers are plenary talks aimed at giving the participants an opportunity to form a coherent view of the new theories of learning. The themes of the paper sessions addressed a variety of topics on different levels from elementary school to…

Pehkonen, Erkki, Ed.

22

Librarian of the Year 2008: New Jersey State Librarian Norma Blake  

ERIC Educational Resources Information Center

This article profiles "Library Journal's" (LJ) chosen 2008 Librarian of the Year. Librarians and officials in education and government all recount the leadership and creativity brought to library service in New Jersey by State Librarian Norma Blake. She has sparked proactive, collaborative initiatives that have taken libraries of all types "out of…

Berry, John N., III

2008-01-01

23

5/6/09 9:35 AMAre there roaches in your coffee and chocolate? Bug Girl's Blog Page 1 of 5http://membracid.wordpress.com/2009/05/05/are-there-roaches-in-your-coffee-and-chocolate/  

E-print Network

5/6/09 9:35 AMAre there roaches in your coffee and chocolate? « Bug Girl's Blog Page 1 of 5http://membracid.wordpress.com/2009/05/05/are-there-roaches-in-your-coffee-and-chocolate/ « Pollinator Action Alert: Farm Bill in Senate Are there roaches in your coffee and chocolate? The interwebs are abuzz from the NPR interview

Emlen, Douglas J.

24

The Norma Arm Region Chandra Survey: X-ray Populations in the Spiral Arms  

E-print Network

We present a catalog of 1415 X-ray sources identified in the Norma arm region Chandra survey (NARCS), which covers a 2 deg x 0.8 deg region in the direction of the Norma spiral arm to a depth of $\\approx$20 ks. Of these sources, 1130 are point-like sources detected with $\\geq3\\sigma$ confidence in at least one of three energy bands (0.5-10, 0.5-2, and 2-10 keV), five have extended emission, and the remainder are detected at low significance. Since most sources have too few counts to permit individual classification, they are divided into five spectral groups defined by their quantile properties. We analyze stacked spectra of X-ray sources within each group, in conjunction with their fluxes, variability, and infrared counterparts, to identify the dominant populations in our survey. We find that $\\sim$50% of our sources are foreground sources located within 1-2 kpc, which is consistent with expectations from previous surveys. Approximately 20% of sources are likely located in the proximity of the Scutum-Crux an...

Fornasini, Francesca M; Bodaghee, Arash; Krivonos, Roman A; An, Hongjun; Rahoui, Farid; Gotthelf, Eric V; Bauer, Franz E; Stern, Daniel

2014-01-01

25

X-ray Populations in the Norma and Scutum-Crux Spiral Arms  

NASA Astrophysics Data System (ADS)

In recent years, several surveys aimed at studying stellar X-ray populations have targeted the Galactic center region because it provides a nearby laboratory to explore the dynamics and evolution of galactic nuclei. The distinct environment of the spiral arms provides an important contrast to this region, being generally characterized by a greater abundance of young stellar X-ray sources relative to old ones. We conducted a Chandra Large Program survey of a 2°×0.8° region tangent to the Norma spiral arm to study its X-ray populations, and, in particular, to search for new High Mass X-ray Binaries (HMXBs). This region lies in the direction of the highest concentration of HMXBs and OB associations in the Galaxy. We present a study of ~1000 (>3?) X-ray sources detected in this survey and their cumulative count distribution, comparing it to expectations based on the INTEGRAL Galactic plane survey. In addition, we present results from near-IR spectroscopic follow-up of selected Chandra sources chosen by a combination of spectral hardness, variability, brightness, and counterpart reliability. We find that many of these sources have IR and X-ray properties consistent with those of cataclysmic variables (CVs), and the fact that the majority of X-ray sources in our catalog have similar X-ray spectral properties suggests that, like the Galactic center, the Norma region X-ray populations may be dominated by CVs. Thus far, we have identified six of the selected IR counterparts as massive stars, some of which have X-ray properties consistent with those of HMXBs. Because all these potential HMXBs have relatively faint unabsorbed fluxes (?10^-13 erg/cm^2/s in the 2-10 keV band), they could provide significant constraints on the faint end of the HMXB luminosity function.

Fornasini, Francesca; Tomsick, J.; Rahoui, F.; Bodaghee, A.; Krivonos, R. A.; An, H.; Gotthelf, E. V.; Kaspi, V. M.; Bauer, F. E.; Stern, D.; Boggs, S. E.

2013-04-01

26

Spectroscopic and photometric observations of the R Coronae Borealis stars S Apodis and RZ Normae throughout their recent declines  

Microsoft Academic Search

Spectroscopic and photometric observations of two R Coronae Borealis (RCB) stars, S Apodis and RZ Normae, have been obtained during the decline phase of each of these stars. Although the declines have very different global characteristics -- the depth of the decline in brightness is respectively 6 and 2 mag in S Aps and RZ Nor -- there are some

Lj. Skuljan; P. L. Cottrell

1999-01-01

27

Near-infrared spectroscopy of 20 new Chandra sources in the Norma arm  

NASA Astrophysics Data System (ADS)

We report on CTIO/NEWFIRM and CTIO/OSIRIS photometric and spectroscopic observations of 20 new X-ray (0.5-10 keV) emitters discovered in the Norma arm Region Chandra Survey (NARCS). NEWFIRM photometry was obtained to pinpoint the near-infrared counterparts of NARCS sources, while OSIRIS spectroscopy was used to help identify 20 sources with possible high mass X-ray binary properties. We find that (1) two sources are WN8 Wolf-Rayet stars, maybe in colliding wind binaries, part of the massive star cluster Mercer 81; (2) two are emission-line stars, possibly in X-ray binaries, that exhibit near- and mid-infrared excesses either due to free-free emission from the decretion discs of Be stars or warm dust in the stellar winds of peculiar massive stars such as B[e] supergiants or luminous blue variables; (3) one is a B8-A3 IV-V star that could be in a quiescent high mass X-ray binary system; (4) two are cataclysmic variables including one intermediate polar; (5) three may be neutron star symbiotic binaries; (6) five are most likely white dwarf symbiotic binaries; and (7) five exhibit properties more consistent with isolated giant/dwarf stars. The possible detection of one to three high mass X-ray binaries is in good agreement with our predictions. However, our study illustrates the difficulty of clearly differentiating quiescent or intermediate X-ray luminosity systems from isolated massive stars, which may lead to an underestimation of the number of known high mass X-ray binaries.

Rahoui, F.; Tomsick, J. A.; Fornasini, F. M.; Bodaghee, A.; Bauer, F. E.

2014-08-01

28

A review of "Law, Crime and English Society, 1660-1830" by Norma Landau and "Crime, Gender and Social Order in Early Modern England" by Garthine Walker  

E-print Network

postmodern philosophy and historical analysis energizes Law, Crime and English Society, 1660-1830, edited by Norma Landau, and Crime, Gender and Social Order in Early Modern England by Garthine Walker. While only the latter acknowledges its reviews 17... of postmodern thought: the rendering of all cultural production as ?texts? and ?discourses? that make equal claims to interpretive authority. In distinction to most post- modern work undertaken in literary studies, however, the two books anchor themselves...

Sherman, Donovan

2010-01-01

29

Abundant Molecular Gas and Inefficient Star Formation in Intracluster Regions: Ram Pressure Stripped Tail of the Norma Galaxy ESO137-001  

NASA Astrophysics Data System (ADS)

For the first time, we reveal large amounts of cold molecular gas in a ram-pressure-stripped tail, out to a large "intracluster" distance from the galaxy. With the Actama Pathfinder EXperiment (APEX) telescope, we have detected 12CO(2-1) emission corresponding to more than 109 M ? of H2 in three H? bright regions along the tail of the Norma cluster galaxy ESO 137-001, out to a projected distance of 40 kpc from the disk. ESO 137-001 has an 80 kpc long and bright X-ray tail associated with a shorter (40 kpc) and broader tail of numerous star forming H II regions. The amount of ~1.5 × 108 M ? of H2 found in the most distant region is similar to molecular masses of tidal dwarf galaxies, though the standard Galactic CO-to-H2 factor could overestimate the H2 content. Along the tail, we find the amount of molecular gas to drop, while masses of the X-ray-emitting and diffuse ionized components stay roughly constant. Moreover, the amounts of hot and cold gas are large and similar, and together nearly account for the missing gas from the disk. We find a very low SFE (?dep > 1010 yr) in the stripped gas in ESO 137-001 and suggest that this is due to a low average gas density in the tail, or turbulent heating of the interstellar medium that is induced by a ram pressure shock. The unprecedented bulk of observed H2 in the ESO 137-001 tail suggests that some stripped gas may survive ram pressure stripping in the molecular phase. Based on observations made with ESO telescopes at La Silla Paranal Observatory under program ID 088.B-0934.

Jáchym, Pavel; Combes, Françoise; Cortese, Luca; Sun, Ming; Kenney, Jeffrey D. P.

2014-09-01

30

NORMAS GERAIS PARA INGRESSO POR TRANSFERNCIA EXTERNA  

E-print Network

Eleitor; - Certificado de Dispensa de Incorporação; - CPF. Se candidato estrangeiro: - Certidão de Nascimento ou Casamento com tradução juramentada; - Carteira de Identidade; - CPF; - Passaporte, onde deverá

31

NORMAS GERAIS PARA INGRESSO COMO ALUNO EXTRAORDINRIO  

E-print Network

(Convalidação de estudos concedida pela Secretaria Estadual de Educação, no Brasil, se concluído no exterior) ou Dispensa de Incorporação 9) Cópia do CPF. III ­ DOS PROCEDIMENTOS A matrícula nesta categoria deverá ser

32

NORMAS GERAIS PARA INGRESSO COMO ALUNO EXTRAORDINRIO  

E-print Network

Convalidação de Estudos concedida pela Secretaria Estadual de Educação, no Brasil. 4) Histórico Escolar da IES do Título de Eleitor. 9) Cópia do Certificado de Dispensa de Incorporação 10) Cópia do CPF. III ­ DOS

33

NORMAS GERAIS PARA INGRESSO POR TRANSFERNCIA EXTERNA  

E-print Network

estudos concedida pela Secretaria Estadual de Educação, no Brasil. Se o Ensino Médio foi concluído nos Eleitor; - Certificado de Dispensa de Incorporação; - CPF. Se candidato estrangeiro: - Certidão de Nascimento ou Casamento com tradução juramentada; - Carteira de Identidade; - CPF; - Passaporte, onde deverá

34

NORMAS GERAIS PARA INGRESSO COMO ALUNO EXTRAORDINRIO  

E-print Network

Estudos concedida pela Secretaria Estadual de Educação, no Brasil. 4) Histórico Escolar da IES de origem Eleitor. 9) Cópia do Certificado de Dispensa de Incorporação 10) Cópia do CPF. III ­ DOS PROCEDIMENTOS

35

Feedback-Directed Switch-Case Statement Optimization Peng Zhao and Jose Nelson Amaral  

E-print Network

functions are often too large to be inlined [3, 4, 13]. The actions of infrequent (cold) cases often account. The largest performance improve- ment of DP and SP over existing O3 optimization in the Open Research Compiler

Amaral, José Nelson

36

The Puzzle of quasi prima `almost before' and quasi dopo `almost Patrcia Amaral Fabio Del Prete  

E-print Network

Prete Stanford University Università degli Studi di Milano Stanford University 1. A Puzzling Asymmetry adventure of T. Rocchi ended almost before it started.' Sentence (1a) means that Cocomerine pears have to be consumed soon, shortly after they have been picked. Sentence (1b) means that the adventure of T. Rocchi

Paris-Sud XI, Université de

37

Serializability Improves Parallel Execution of Production System Jos'e Nelson Amaral \\Lambda Joydeep Ghosh  

E-print Network

. of Electr. and Comp. Engineering Pontif'icia Universidade Cat'olica do RGS The University of Texas at Austin'icia Universidade Cat'olica do Rio Grande do Sul (PUCRS) ­ Brazil. 1 #12; The commutativity criterion proposed to be higher than in ``toy problems''. This is primarily because productions have a larger

Amaral, José Nelson

38

Observation of the Inverse Cotton-Mouton Effect Andrei Ben-Amar Baranga,1,#  

E-print Network

of the measured effect on the laser power density and polarization, and on the static external magnetic field. We the measurement of a magnetization of a magnetic film induced by a laser beam in the presence of a static magnetic- pendence of the measured effect on the laser energy and polarization, and on the external magnetic field

39

Volcanics and structure of the famous narrowgate rift: Evidence for cyclic evolution: AMAR 1  

SciTech Connect

A near-bottom photographic survey on the Mid-Atlantic Ridge from the FAMOUS region south to Transform B reveals structural and volcanologic evidence for an alternating widening and narrowing rift valley. Extension wedges appear to be propagating south from Transform A and north from Transform B. These merge at Mt. Mars, where the rift valley is narrowest and shallowest (Narrowgate), giving the valley a symmetrical hourglass shape. Three major volcanic en echelon lineaments trend N10 /sup 0/E, 10/sup 0/ oblique to the strike of the inner walls. Faulting and fissuring are antisymmetrical across the rift valley in contrast to the major extension. This contrasting antisymmetry reflects the surficial distribution of stress across crust of varying strengths, whereas the large-scale wedge phenomenon determines the periodicity of transition from a narrow valley to a wide valley. Using vector analysis, the extension wedges are propagating at about 9 cm/yr toward each other. At this rate a narrow rift valley will be fully transformed into wide rift in 0.64 m.y.

Crane, K.; Ballard, R.D.

1981-06-10

40

Dr. Amar Gupta 1130 E. Helen Street # 417C, Tucson, AZ 85721  

E-print Network

, developed new courses that focus on innovation and entrepreneurship in a global economy through are described in Section III (on next page). · As Tenured and Endowed Professor in the field of Entrepreneurship the deployment of distributed work teams. For the first time, the Entrepreneurship Undergraduate Program at Eller

Arizona, University of

41

CENTERFORTHESTUDYOFIMMIGRANTINTEGRATION By Norma Stoltz Chinchilla and Nora Hamilton  

E-print Network

2013 Identity Formation Among Central American Americans #12;1 IDENTITY FORMATION AMONG CENTRAL AMERICAN-AMERICANS 1 "Growing up, I mainly thought of myself as Latino. Guatemalan was what I was and what was born in San Francisco; I'm a Central American from El Salvador." "What really motivates me is trying

Rohs, Remo

42

High-speed photometry of the Recurrent Nova IM Normae  

E-print Network

The recurrent nova IM Nor is found to have an orbital period of 2.462 h, shown by periodic dips in brightness. This is only the second recurrent nova known to have such a short period. We interpret the light curve as largely produced by a reflection effect from the heated face of the secondary star, probably with addition of a partial eclipse of the accretion disc.

Woudt, P A; Woudt, Patrick A.; Warner, Brian

2003-01-01

43

NORMAS GERAIS PARA INGRESSO COMO PORTADOR DE DIPLOMA DE  

E-print Network

); - Título de Eleitor; - Certificado de Dispensa de Incorporação; - CPF. Se candidato estrangeiro juramentada; - Carteira de Identidade; - CPF; - Passaporte, onde deverá constar o visto de estudante

44

A Search-Aware JPEG-LS Variation for Compressed Image Retrieval Tao Tao, Amar Mukherjee, Ravi Vijaya Satya  

E-print Network

- length compression and the LZW compression are not efficient in terms of compression ratio amount of image data such as the satellite images being stored in the compressed format, efficient image compression. With the images being stored in the compressed format, efficient retrieval of image

Mukherjee, Amar

45

Modified LZW Algorithm for Efficient Compressed Text Retrieval Nan Zhang, Tao Tao, Ravi Vijaya Satya, and Amar Mukherjee1  

E-print Network

and fast (partial) decompression; b) efficient indexing; c) compression ratio. The compression time the relevant portion. The compression ratio can also be improved using the modified LZW algorithm. PreliminaryModified LZW Algorithm for Efficient Compressed Text Retrieval Nan Zhang, Tao Tao, Ravi Vijaya

Mukherjee, Amar

46

MANUAL DE NORMAS Y PROCEDIMIENTOS "ADQUISICIN DE BIENES EN LA UNIVERSIDAD SIMN BOLVAR,  

E-print Network

Oficial de la República Bolivariana de Venezuela Nº 39.503 de fecha 06 de septiembre de 2010. - Reglamento de la Ley de Contrataciones Públicas Gaceta Oficial de la República Bolivariana de Venezuela 39 Bolivariana de Venezuela Nº 6.013 Extraordinario del 23 de Diciembre del 2010. - Ley Contra la Corrupción

Vásquez, Carlos

47

Karen Swider-Lyons, Peter Bouwman, Norma Ugarte Naval Research Laboratory  

E-print Network

in sulfuric acid and/or phosphoric acid for 12 h at 90 °C Test catalyst performance in RDEs before and after in sulfuric acid · RDE evaluation underway Pt-NbPOx · Compound is insoluble in sulfuric acid and phosphoric to be stable in acid at 90 °C New stable Pt-FePOx phase resolved #12;Naval Research Lab DOE review 19May2003

48

Anchors for the Cosmic Distance Scale: the Cepheid QZ Normae in the Open Cluster NGC 6067  

E-print Network

Cepheids are key to establishing the cosmic distance scale. Therefore it's important to assess the viability of QZ Nor, V340 Nor, and GU Nor as calibrators for Leavitt's law via their purported membership in the open cluster NGC 6067. The following suite of evidence confirms that QZ Nor and V340 Nor are members of NGC 6067, whereas GU Nor likely lies in the foreground: (i) existing radial velocities for QZ Nor and V340 Nor agree with that established for the cluster (-39.4+-1.2 km/s) to within 1 km/s, whereas GU Nor exhibits a markedly smaller value; (ii) a steep velocity-distance gradient characterizes the sight-line toward NGC 6067, thus implying that objects sharing common velocities are nearly equidistant; (iii) a radial profile constructed for NGC 6067 indicates that QZ Nor is within the cluster bounds, despite being 20' from the cluster center; (iv) new BVJH photometry for NGC 6067 confirms the cluster lies d=1.75+-0.10 kpc distant, a result that matches Wesenheit distances computed for QZ Nor/V340 Nor ...

Majaess, D; Bidin, C Moni; Soto, M; Gieren, W; Cohen, R; Mauro, F; Geisler, D; Bonatto, C; Borissova, J; Minniti, D; Turner, D; Lane, D; Madore, B; Carraro, G; Berdnikov, L

2013-01-01

49

CONVOCATORIADECARTELES(CITUPAS) 2012 SESIN DE CARTELES. Se deben tener en cuenta las siguientes normas  

E-print Network

publicados en los últimos años y un disco duro para PC para los ganadores respectivos del disciplinas relacionadas con el turismo, difundiendo los avances y experiencias alcanzadas desde perspectivas

50

An Electrochemical Color-Switchable RGB Dye: Tristable [2]Catenane Wei-Qiao Deng, Amar H. Flood, J. Fraser Stoddart, and William A. Goddard III*,  

E-print Network

have been demonstrated, it is color displays that are the final target. The pixels in color designs matrixes9 and even on paper materials. Thus, simple package processing, such as ink-jet printing technology for the implementation of an E-PAD. Based on the general design (Figure 1b) a number of require- ments need

Goddard III, William A.

51

Envisioning a Marine Biodiversity Observation Network Author(s): J. Emmett Duffy, Linda A. Amaral-Zettler, Daphne G. Fautin, Gustav Paulay,  

E-print Network

suggest that managing systems to maintain marine biodiversity may provide a way to resolve otherwise & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp . JSTOR is a not conflicting objectives resulting from piece- meal management (Palumbi et al. 2009, Foley et al. 2010

Fautin, Daphne

52

INFIDELIDAD FEMENINA, CAUSA, RAZONES Y MOTIVOS  

Microsoft Academic Search

La infidelidad tiene una sola causa: el matrimonio. Este se instituyó para garantizar hijos de paternidad segura. Si no se hubiera instaurado, los códigos esposa, esposo, amante, cornudo no existieran y las mujeres seguirían siendo libres de mantener relaciones sexuales con quien se les antoje. Al establecerse el matrimonio, pues la monogamia redujo a la mujer a un objeto para

Diosveldy Navarro Lores; Karina Pachot Zambrana

2012-01-01

53

Source Modeling of Severely Pathological Voices Bruce R, Gerratt*, Jody Kreiman*, Norma Antonanzas-Barroso*, Brian Gabeiman*,  

E-print Network

voices were recorded using both a condenser microphone and a flow mask system. Synthetic versions of each of the glottal flow signal (e.g., 1) or of the acoustic signai as transduced with a condenser microphone (2 (Giottai Enterprises) was piaced over the subject's face and a 1" condenser microphone (Bruel & Kjaer

Alwan, Abeer

54

El Escritor y las Normas del Canon Literario (The Writer and the Norms of the Literary Canon).  

ERIC Educational Resources Information Center

This paper speculates about whether a literary canon exists in contemporary Latin American literature, particularly in the prose genre. The paper points to Carlos Fuentes, Gabriel Garcia Marquez, and Mario Vargas Llosa as the three authors who might form this traditional and liberal canon with their works "La Muerte de Artemio Cruz" (Fuentes),…

Policarpo, Alcibiades

55

"Amar te Duele" ("Love Hurts"): Sexual Relationship Power, Intimate Partner Violence, Depression Symptoms and HIV Risk Among Female Sex Workers Who Use Drugs and Their Non-commercial, Steady Partners in Mexico.  

PubMed

A significant body of research among female sex workers (FSWs) has focused on individual-level HIV risk factors. Comparatively little is known about their non-commercial, steady partners who may heavily influence their behavior and HIV risk. This cross-sectional study of 214 FSWs who use drugs and their male steady partners aged ?18 in two Mexico-U.S. border cities utilized a path-analytic model for dyadic data based upon the Actor-Partner Interdependence Model to examine relationships between sexual relationship power, intimate partner violence (IPV), depression symptoms, and unprotected sex. FSWs' relationship power, IPV perpetration and victimization were significantly associated with unprotected sex within the relationship. Male partners' depression symptoms were significantly associated with unprotected sex within the relationship. Future HIV prevention interventions for FSWs and their male partners should address issues of sexual relationship power, IPV, and mental health both individually and in the context of their relationship. PMID:24743959

Ulibarri, Monica D; Roesch, Scott; Rangel, M Gudelia; Staines, Hugo; Amaro, Hortensia; Strathdee, Steffanie A

2015-01-01

56

Observation of the Inverse CottonMouton E#ect Andrei BenAmar Baranga, 1,# Remy Battesti, 1 Mathilde Fouche, 1,2,3 Carlo Rizzo, 1,2,3,#  

E-print Network

the dependence of the measured e#ect on the laser power density and polarization, and on the static external. In 1987 Zon et al. reported the measurement of a magnetization of a magnetic film induced by a laser beam the de­ pendence of the measured e#ect on the laser energy and polarization, and on the external magnetic

57

Cambios en la capacidad del Estado para enfrentar las violaciones de las normas laborales: los talleres de confección de prendas de vestir en Buenos Aires  

E-print Network

Developing the capacity for states to enforce labor law is a key challenge to regulating decent work. Dominant accounts of state capacity, however, suggest that the principal components of state enforcement capacity are ...

Amengual, Matthew

58

Aplicação da norma astm A923-Prática a para identificação de fases intermetálicas em junta soldada de aço inoxidável superduplex UNS 32750  

Microsoft Academic Search

Duplex and superduplex stainless steels present superior mechanical and corrosion properties than usual stainless steels. This superiority is based on chemical composition and in a balanced microstructure (approximately 50% of ferrite). During welding changes may occur in both, chemical composition and volume fraction of phases in the material, which may generate the presence of intermetallic phases and, as a consequence,

Sérgio Duarte Brandi; Lauro M. Y. Silveira; Daniel L. B. Vasconcellos

2010-01-01

59

Normas para el uso de "La Veranda" (rea 24/7) Al concluir el horario de servicio de la Biblioteca Conrado F. Asenjo se ofrece a la comunidad  

E-print Network

Biblioteca. Consumo de alimentos · Se permite ingerir alimentos únicamente en el área que corresponde al segundo piso. Luego que terminen de consumir los alimentos, agradecemos el que limpien las mesas antes de

Quirk, Gregory J.

60

Standards for University Libraries = Normes pour les bibliotheques universitaires = Richtwerte fur Universitatsbibliotheken = Normas de bibliotecas universitarias. IFLA Professional Reports No. 10.  

ERIC Educational Resources Information Center

This statement prepared by the International Federation of Library Associations' Section of University Libraries and Other General Research Libraries presents standards of general principles designed to accomplish the following: (1) provide a means by which the quality of the library serving a university can be assessed; (2) offer guidance for…

Lynch, Beverly P., Ed.

61

Comparison of Oxygen-Bomb Combustion with Standard Ignition Techniques for Determining Author(s): William A. Reiners and Norma M. Reiners  

E-print Network

Comparison of Oxygen-Bomb Combustion with Standard Ignition Techniques for Determining Total Ash. http://www.jstor.org #12;COMPARISON OF OXYGEN-BOMB COMBUSTION WITH STANDARD IGNITION TECHNIQUES samples by oxygen- bomb combustion and by a simple muffle-furnacetechnique. The influence of using

Minnesota, University of

62

Multiple choice set 4 Q1. If X N(0, 4) the value of P(|X| 2.2) is (use the norma table)  

E-print Network

variable with mean 150 lbs. and variance 900 lb2 . An elevator containing a sign "Maximum 12 people" can safely carry 2000 lbs. The probability that 12 people will not overload the elevator is closest to (a) 0 of 500 hours. A company quality control engineer intends to select a random sample of 100

Kulik, Rafal

63

Norma e variação nos livros didáticos de língua portuguesa e literatura aprovados pelo Programa Nacional do Livro para o ensino médio de 2009.  

E-print Network

??Esta dissertação busca caracterizar o discurso didático-expositivo acerca da variação linguística presente nos livros didáticos de língua portuguesa e literatura aprovados pelo Programa Nacional do… (more)

César Augusto Gonzalez

2013-01-01

64

Scatter search algorithms for the single row facility layout problem  

E-print Network

Mar 22, 2012 ... differences between scatter search and genetic algorithms have ... and B2 permutations improve the diversity in the reference set. ..... [2] A.R.S. Amaral, On the exact solution of a facility layout problem, European Journal of.

2012-03-22

65

09/07/13 Grupo de pesquisa: Ncleo de Estudos em Direito Civil Constitucional dgp.cnpq.br/buscaoperacional/detalhegrupo.jsp?grupo=0103601RMV82OC 1/3  

E-print Network

Luiz Edson Fachin Carlos Eduardo Pianovski Ruzyk Marcos Alves da Silva Danilo Cesar Maganhoto Doneda Maria Candida Pires Vieira do Amaral Kroetz Elimar Szaniaw ski Paulo Roberto Ribeiro Nalin Eroulths

Paraná, Universidade Federal do

66

Harriman Institute/East Central European Center Undergraduate Course Listing Spring 2012 Updated 1/11/2012 Page 1 of 5  

E-print Network

Instructor: Zhanara Nauruzbayeva WOMEN IN POST-SOCIALIST TRANSFORMATION: UKRAINE, RUSSIA, & POLAND IN FOCUS: Tarik C Amar ISLAM ACROSS EURASIA History G8235 Call Number: 90948 Points: 4 Textbook Information Day

Qian, Ning

67

Dynamic Proteomics of Human Protein Level and Localization across the Cell Cycle  

E-print Network

-Amar, Eran Eden¤c , Ariel Cohen, Naama Geva-Zatorsky¤d , Lydia Cohen, Ron Milo¤b , Alex Sigal¤a , Tamar Danon-Amar S, Eden E, Cohen A, Geva-Zatorsky N, Cohen L, et al. (2012) Dynamic Proteomics of Human Protein Chair. The funders had no role in study design, data collection and analysis, decision to publish

68

PROPUESTA DE NORMAS PARA LA CONSTRUCCIÓN DE MENSAJES EN LA GESTIÓN DE COMUNICACIÓN INTERNA POR MEDIO DE LAS TIC EN LA FACULTAD DE CIENCIAS SOCIALES Y HUMANÍSTICAS DE LA UNIVERSIDAD DE LAS TUNAS  

Microsoft Academic Search

La comunicación es el resultado de la necesidad de interacción del hombre con sus semejantes para conocer y dominar su entorno en la búsqueda incesante de mejores condiciones de supervivencia. De este modo, y aparejado a su propio desarrollo, ésta ha jugado un papel fundamental en la historia de la humanidad

Yamisleydis Popa Báez; Rolando Rodríguez González

2012-01-01

69

77 FR 50497 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...  

Federal Register 2010, 2011, 2012, 2013, 2014

...DC 20503. FOR FURTHER INFORMATION CONTACT: Norma Abdul-Malik, Environmental Protection Agency, 1200 Pennsylvania Ave...703-308-8753; fax number: 703-308-8617; email address: abdul-malik.norma@epa.gov. SUPPLEMENTARY INFORMATION: EPA has...

2012-08-21

70

75 FR 65625 - Agency Information Collection Activities; Proposed Collection; Comment Request; Hazardous Waste...  

Federal Register 2010, 2011, 2012, 2013, 2014

...dockets.htm. FOR FURTHER INFORMATION CONTACT: Norma Abdul-Malik, Office of Solid Waste (5303P), Environmental Protection...fax number: 703-308-8617; e-mail address: abdul-malik.norma@epa.gov. SUPPLEMENTARY INFORMATION: How can...

2010-10-26

71

77 FR 20623 - Agency Information Collection Activities; Proposed Collection; Comment Request; General Hazardous...  

Federal Register 2010, 2011, 2012, 2013, 2014

...dockets.htm. FOR FURTHER INFORMATION CONTACT: Norma Abdul-Malik, Environmental Protection Agency, 1200 Pennsylvania Ave...703-308-8753; fax number: 703-308-8617; email address: abdul-malik.norma@epamail.epa.gov. SUPPLEMENTARY...

2012-04-05

72

76 FR 14656 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...  

Federal Register 2010, 2011, 2012, 2013, 2014

...DC 20503. FOR FURTHER INFORMATION CONTACT: Norma Abdul-Malik, Office of Solid Waste (5303P), Environmental Protection...fax number: 703-308-8617; e-mail address: abdul-malik.norma@epa.gov. SUPPLEMENTARY INFORMATION: EPA has...

2011-03-17

73

PROGETTI UNIVERSITA' ESERCIZIO FINANZIARIO 2012 N. RESPONSABILE AREA DIPARTIMENTO TITOLO FINANZIAMENTO  

E-print Network

target per nuove strategie terapeutiche 12.000,00 #12;11 AMAR Micol A SC. DI BASE ED APPLICATE PER L EPATOCARCINOMA AVANZATO 8.000,00 18 ATZENI Stefano A SC. DI BASE ED APPLICATE PER L'INGEGNERIA Modellistica e in the vulnerability to relapse into heroin and cocaine addiction: a pre-clinical investigation 40.000,00 24 BAIOCCHI

Guidoni, Leonardo

74

Linear Regression and Best Fit  

NSDL National Science Digital Library

This lesson, created by Amar Patel of the University of Illinois - Urbana-Champaign, introduces simple linear regression with several Excel spreadsheet examples such as temperature versus cricket chirps, height versus shoe size, and laziness versus amount of television watched. These activities require class participation. This would be a great interactive lesson for a classroom studying statistics.

Patel, Amar

2009-01-22

75

Why Minimal Multiple Rules Provide a Unique Window into UG and L2  

ERIC Educational Resources Information Center

This article clarifies some ideas presented in this issue's keynote article (Amaral and Roeper, this issue) and discusses several issues raised by the contributors' comments on the nature of the Multiple Grammars (MG) theory. One of the key goals of the article is to unequivocally state that MG is not a parametric theory and that its…

Amaral, Luiz; Roeper, Tom

2014-01-01

76

Genetics Research Discovered in a Bestseller | Poster  

Cancer.gov

Amar Klar holds the novel in which his research on yeast genetics was accurately described by the author, who is not a scientist and has never even met Klar. In his right hand, Klar holds a photo of himself that was taken in 1979 at Cold Spring Harbor Laboratory, where he performed the research.

77

Add new comment | Poster  

Cancer.gov

Amar Klar holds the novel in which his research on yeast genetics was accurately described by the author, who is not a scientist and has never even met Klar. In his right hand, Klar holds a photo of himself that was taken in 1979 at Cold Spring Harbor Laboratory, where he performed the research.

78

Constraining Multiple Grammars  

ERIC Educational Resources Information Center

This article offers the author's commentary on the Multiple Grammars (MG) language acquisition theory proposed by Luiz Amaral and Tom Roeper in the present issue. Multiple Grammars advances the claim that optionality is a constitutive characteristic of any one grammar, with interlanguage grammars being perhaps the clearest examples of a…

Hopp, Holger

2014-01-01

79

Contextualizing Cross-Discipline Teaching and Learning Through Engineering Multidisciplinary Projects (EMDPs)  

E-print Network

Emirates (UAE) Introduction The teaching and learning of highly required workplace technical communication and acquire several technical communication skills required for the workplace. As with any other language to their appropriate uses in authentic communication situations (Amare and Brammer 2005; Predmore 2005

Aloul, Fadi

80

IN PLANTA INTERACTIONS OF THREE PLUM POX POTYVIRUS STRAINS WITHIN CULTIVAR LOVELL PEACH SEEDLINGS  

Technology Transfer Automated Retrieval System (TEKTRAN)

Plum pox potyvirus (PPV) exists as several distinct strains: Dideron (D), Marcus (M), El Amar (EA), and Cherry (C). The M strain is considered the most easily aphid transmissible and epidemic form in peach. The D strain is the oldest recognized strain, most widely distributed worldwide, and the on...

81

Multiple Grammars and MOGUL  

ERIC Educational Resources Information Center

Optionality is a central phenomenon in second language acquisition (SLA), for which any adequate theory must account. Amaral and Roeper (this issue; henceforth A&R) offer an appealing approach to it, using Roeper's Multiple Grammars Theory, which was created with first language in mind but which extends very naturally to SLA. They include…

Truscott, John

2014-01-01

82

The Multiple Grammars Theory and the Nature of L2 Grammars  

ERIC Educational Resources Information Center

This article offers the author's commentary on the Multiple Grammar (MG) language acquisition theory proposed by Luiz Amaral and Tom Roeper in the present issue and touches on other second language acquisition research. Topics discussed include the concept of second language (L2) optionality, a hypothesis regarding the acquisition of the…

Liceras, Juana M.

2014-01-01

83

Videos: Autism Spectrum Disorders Selected Videos  

E-print Network

Videos: Autism Spectrum Disorders Selected Videos http://www.ucdmc.ucdavis.edu/mindinstitute/videos/video_index.html A Community Forum: Autism Spectrum Disorders Presenters: David Amaral, Ph.D., Sally Rogers Ph.D., and Peter Cordova Unified School District Can We Identify and Treat Autism in Infancy? Presenter: Sally Rogers, Ph

Nguyen, Danh

84

Organic Dyes, Conjugation, and the Chemistry of Vision  

E-print Network

Organic Dyes, Conjugation, and the Chemistry of Vision François G. Amar Department of Chemistry blue light on a yellow solution and no light gets through: #12;Organic dyes are conjugated molecules) = 165 217 286 345 #12;Some other organic dyes O OH OH HO OH OH N+ N CH NH2 H3C N CH3 H Mauve: the first

Amar, François G.

85

Sensors and Actuators A 158 (2010) 116120 Contents lists available at ScienceDirect  

E-print Network

cantilever with a metal heater near the tip which generates a temperature gradient up to 1 C/ m along its ultrasonic standing waves which can trap microscale beads and other particles. Due to the challenges generated by microfabricated thermal probes Amar S. Basu , Yogesh B. Gianchandani1 Department of Electrical

Basu, Amar S.

86

People | Poster  

Cancer.gov

Amar Klar holds the novel in which his research on yeast genetics was accurately described by the author, who is not a scientist and has never even met Klar. In his right hand, Klar holds a photo of himself that was taken in 1979 at Cold Spring Harbor Laboratory, where he performed the research.

87

BIOTECHNOLOGICALLY RELEVANT ENZYMES AND PROTEINS Characterization of modular bifunctional processive  

E-print Network

processive endoglucanase Cel5 from Hahella chejuensis KCTC 2396 Sunil Subhash Ghatge & Amar Anandrao Telke and purified to ho- mogeneity. The optimum endoglucanase and xylanase activ- ities of recombinant Cel5 were- stability and endoglucanase activity of Cel5. The Cel5 retained 90 % of its endoglucanase activity after 24

Lee, Keun Woo

88

79 FR 60142 - Takes of Marine Mammals Incidental to Specified Activities; Taking Marine Mammals Incidental to...  

Federal Register 2010, 2011, 2012, 2013, 2014

...that it does not intend to use marine autonomous recording units (MARUs) for long-term...the identified winter heating season. Autonomous Marine Recording (AMAR) units will...visual monitoring and the real-time autonomous buoys (ABs), are the same as...

2014-10-06

89

Polarity Trend Analysis of Public Sentiment on YouTube  

E-print Network

Polarity Trend Analysis of Public Sentiment on YouTube Amar Krishna , Joseph Zambreno and Sandeep, Ames, IA 50011 {a16, zambreno, sandeepk}@iastate.edu ABSTRACT For the past several years YouTube has analysis of the YouTube comments related to popular topics using ma- chine learning techniques. We

Zambreno, Joseph A.

90

Wavelet Lifting for Speckle Noise Reduction in Ultrasound Images  

E-print Network

. The efficacy of this filter is demonstrated on both simulated and real medical ultrasound images. The result of research has been done for medical ultrasound speckle de-noising [2][8][10] using different typesWavelet Lifting for Speckle Noise Reduction in Ultrasound Images Yuan Chen, and Amar Raheja

Raheja, Amar

91

The Legal Impact of Bologna Implementation: Exploring Criticisms and Critiques of the Bologna Process  

ERIC Educational Resources Information Center

This paper reviews some of the critical assessments of the Bologna Process, notably by Neave and Amaral and Teichler. Other secondary material referred to includes Reinalda and Kulesza, Corbett and Greatrix. It is arguable that the Bologna Process is part of the generally over-bureaucratic and very costly context of European Union (EU)…

Palfreyman, David

2008-01-01

92

American Journal of Botany 98(2): 306325. 2011. American Journal of Botany 98(2): 306325, 2011; http://www.amjbot.org/ 2011 Botanical Society of America  

E-print Network

the following individuals and herbaria for providing tissue or genomic DNA: M.C.E.Amaral,A.Amorim, P. Berry, D GENOMES1 Brad R. Ruhfel2,8, Volker Bittrich3, Claudia P. Bove4, Mats H. G. Gustafsson5, C. Thomas

93

RESULTADO LISTA DE ESPERA AUXLIO MORADIA EDITAL 01/2014 GRR20145592 ADILSON DE OLIVEIRA BOTELLO SENA JUNIOR  

E-print Network

ANA CLAUDIA PICOTTI CASAGRANDE GRR20122047 ANA PAULA AMARAL PERALVA GRR20110836 ANA PAULA SANDOVAL SOUSA GRR20101066 CESAR AUGUSTO SCHMID SAUDADE GRR20130963 CLAUDIA PEREIRA DE SOUZA GRR20130976 CLEIDE20132861 LETICIA SENE DE MELO GRR20143430 LIDIANE DE AMORIM LISBOA GRR20145146 LIEGE TOFFOLI LEITE GRR

Paraná, Universidade Federal do

94

ORIGINAL ARTICLE Tau Alternative Splicing and Frontotemporal Dementia  

E-print Network

ORIGINAL ARTICLE Tau Alternative Splicing and Frontotemporal Dementia Amar Kar, MS,* David Kuo, BS with frontotemporal lobe dementia. These mutations affect either biochemical/biophysical pro- perties or the delicate of genetics and molecular pathogenesis of tauopathies with the focus on fronto- temporal lobe dementia. We

Wu, Jane Y.

95

SOUTH CARIBOO 2010 Williams Lake  

E-print Network

SOUTH CARIBOO 2010 Williams Lake Samantha Amaral BA English Cory Antrim BEd Education Melinda Investments Ltd. Scholarship, BC Forest Professionals Award for Excellence, Marumi Scholarship, R. Williams/B. La Pointe Scholarship Virginia Russell Graduate Research Award Kallie Smith UNBC Scholars Program

Northern British Columbia, University of

96

Review on clinical studies with cannabis and cannabinoids 2005-2009  

Microsoft Academic Search

To date, a large number of controlled clinical trials have been done evaluating the therapeutic ap- plications of cannabis and cannabis-based preparations. In 2006, an excellent review was pub- lished, discussing the clinical trials performed in the period 1975 to June 2005 (Ben Amar 2006). The current review reports on the more recent clinical data available. A systematic search was

Arno Hazekamp; Franjo Grotenhermen

2010-01-01

97

Para Candidatos en Programas de Centros de Cuidado y Educacion Infantil con Bebes y "Toddlers": Asociado en Desarrollo Infantil Sistema de Evaluacion y Normas de Competencia CDA (Infant/Toddler Caregivers in Center-Based Programs: The Child Development Associate Assessment System and Competency Standards).  

ERIC Educational Resources Information Center

This Spanish-language booklet outlines the requirements of the Child Development Associate (CDA) credential for caregivers working in center-based infant and toddler day care programs. Part 1 provides an overview of the CDA credentialing system and the various options, settings, standards, and stages of the CDA assessment system. Part 2 explains…

Council for Early Childhood Professional Recognition, Washington, DC.

98

Para Candidatos en Programas de Centros de Cuidado y Educacion Infantil con Ninos de Edad Pre-escolar: Asociado en Desarrollo Infantil Sistema de Evaluacion y Normas de Competencia CDA (Preschool Caregivers in Center-Based Programs: The Child Development Associate Assessment System and Competency Standards).  

ERIC Educational Resources Information Center

This Spanish-language booklet outlines the requirements of the Child Development Associate (CDA) credential for preschool teachers or caregivers who work in center-based preschool day care programs. Part 1 provides an overview of the CDA credentialing system and the various options, settings, standards, and stages of the CDA assessment system.…

Council for Early Childhood Professional Recognition, Washington, DC.

99

Export Norms and Their Role in Compensatory Financing (Les normes d'exportations et leur rôle dans le financement compensatoire) (Las normas de exportación y el papel que desempeñan en el finaciamiento compensatorio)  

Microsoft Academic Search

Pour de nombreuses raisons qui relèvent à la fois de la politique économique nationale et internationale, il peut être souhaitable d'isoler les fluctuations à court terme dans une variable économique en établissant une norme à moyen terme, ou une valeur représentative de tendance, à partir de laquelle des écarts positifs et négatifs pourraient être mesurés. Le besoin d'un tel instrument

Marcus Fleming; Rudolf Rhomberg; Lorette Boissonneault

1963-01-01

100

Orchids along transects II & IV of the Inter-Oceanic Highway. Photos by Q. Lake, RM-Roman-Cuesta, W. Nauray. Oxford University Expedition 2008. Members: David Rueger, Theresa Meacham, Quintin Lake, Norma Salinas, William Nauray, Rosa Maria Romana.Botanica  

E-print Network

Orchids along transects II & IV of the Inter-Oceanic Highway. Photos by Q. Lake, RM-Roman-Cuesta, W transects II & IV of the Inter-Oceanic Highway. Photos by Q. Lake, RM-Roman-Cuesta, W. Nauray. Oxford? Dodson & R. Vásquez #12;Orchids along transects II & IV of the Inter-Oceanic Highway. Photos by Q. Lake

101

Perturbative stability of catenoidal soap films  

NASA Astrophysics Data System (ADS)

The perturbative stability of catenoidal soap films formed between parallel, equal radii, coaxial rings is studied using analytical and semi-analytical methods. Using a theorem on the nature of eigenvalues for a class of Sturm-Liouville operators, we show that, for the given boundary conditions, azimuthally asymmetric perturbations are stable, while symmetric perturbations lead to an instability --a result demonstrated in Ben Amar et al. (Eur. Phys. J. B 3, 197 (1998)) using numerics and experiment. Further, we show how to obtain the lowest real eigenvalue of perturbations, using the semi-analytical Asymptotic Iteration Method (AIM). Conclusions using AIM support the analytically obtained result as well as the results by Ben Amar et al.. Finally, we compute the eigenfunctions and show, pictorially, how the perturbed soap film evolves in time.

Jana, Soumya; Kar, Sayan

2013-09-01

102

Europhys. Lett., 57 (5), pp. 625631 (2002) EUROPHYSICS LETTERS 1 March 2002  

E-print Network

in segments of 30 sec- onds for sleep stages: wakefulness, rapid-eye-movement (REM) sleep and non-REM sleepEurophys. Lett., 57 (5), pp. 625­631 (2002) EUROPHYSICS LETTERS 1 March 2002 Dynamics of sleep-wake transitions during sleep C.-C. Lo1 , L. A. Nunes Amaral1,2 , S. Havlin3 , P. Ch. Ivanov1,2 , T. Penzel4 , J

Stanley, H. Eugene

103

The History of the El Niño - Southern Oscillation according to lacustrine and marine sediments  

Microsoft Academic Search

El gran impacte que El Niño ? Oscil·lació del Sud (ENSO) té en\\u000ala nostra societat industrialitzada ha esperonat la comunitat\\u000acientífica d'arreu a entendre quins són els mecanismes físics\\u000aque el controlen, així com clarificar quina ha estat la seva història.\\u000aEl registre sedimentari de sensors naturals, com els llacs o la\\u000amar, ha permès reconstruir la història de

Santiago Giralt; Ana Moreno Caballud; Roberto Bao; Alberto Sáez Ruiz; Blas L. Valero-Garcés; J. J. Pueyo; B. B. Klosowska; Armand Hernández; Penélope González-Sampériz; Conxita Taberner

2008-01-01

104

2013-ENAM-0066 cole doctorale n 432 Sciences des Mtiers de l'ingnieur  

E-print Network

Spécialité " Génie Mécanique" présentée et soutenue publiquement par Abdelwahed BELHADJ AHMED le 18 décembre suivi de près ou de loin ce travail ; Nejah, Arif, Ammar, Amar, Wajdi, Khan, Lotfi, Rachid, Oussama, Razane, Célia, Olivier, Rémi, Philippe, Amir, Zakaria, Shirin, Jinna, Jawad Ahmed, Rafiq, Gu Guchao

Paris-Sud XI, Université de

105

Health and Disease on the Dutch High Seas: An Analysis of Medical Supplies from Batavia, Vergulde Draak and Zeewijk  

E-print Network

, the Melbern G. Glasscock Center for Humanities Research and Dr. Peter Amaral who all believed in me and helped fund my research. Thank you to Mark Polzer, without whom I would never have thought to pursue this avenue of study. v To my fellow... ................................................................................................... 13 3 Maps of Vergulde Draak Wreck Site ...................................................................................... 18 4 Monkeys in the Surgeon Shop by Pieter van der Borcht (1545-1608) ..................................... 41 5...

Eginton, Coral

2014-04-17

106

Latin American Theatre Review, Volume 23, Number 2: Recent Publications, Materials Received and Current Bibliography  

E-print Network

not preclude subsequent review.] Abreu Felippe, José. Amar así. Miami: Ediciones Universal, 1988. 46 p. Acosta, Iván. Un cubiche en la luna: tres obras teatrales. Houston: Arte Público Press, 1989. 128 p. Alberdi, Jaime. Curso intensivo de teatro con siete.... Bogotá: Arango Editores, 1988. 77 p. Ott, Gustavo. Teatro. Caracas: Textoteatro Ediciones, 1988. 264 p. Incluye: Onda media, Pavlov: El perro y la campana, La mujer del diputado, Los peces crecen con la luna, Passport, y una introducción por Carlos...

Editors

1990-04-01

107

A Note on the Plays of Carlos Díaz Dufoo, Hijo.  

E-print Network

en el mar, en el 'café-terrase' de un trasatlántico moderno. Los personajes salen a contar su flaqueza. Vuelven luego a la nada—destino del fantasma—en el crepúsculo de la tarde" (p. 117). The simple plot sar donically highlights the shallowness... tions. The ideal of marriage, for example, is berated: El Viejo Esposo.—¿Y del matrimonio? El Filósofo.—Que es imposible unidad de almas y perpetuo con flicto, en el que una persona perfecta pide que se someta a su volun tad irreprochable otra...

Mullen, Edward J.

1970-10-01

108

GIANT: A Cytoscape Plugin for Modular Networks  

PubMed Central

Network analysis provides deep insight into real complex systems. Revealing the link between topological and functional role of network elements can be crucial to understand the mechanisms underlying the system. Here we propose a Cytoscape plugin (GIANT) to perform network clustering and characterize nodes at the light of a modified Guimerà-Amaral cartography. This approach results into a vivid picture of the a topological/functional relationship at both local and global level. The plugin has been already approved and uploaded on the Cytoscape APP store. PMID:25275465

Cumbo, Fabio; Paci, Paola; Santoni, Daniele; Di Paola, Luisa; Giuliani, Alessandro

2014-01-01

109

An Index to LATR 26/1 (Fall 1992) to 30/2 (Spring 1997)  

E-print Network

. "La Cubanía: The Soul of Cuban Theatre in the Mid- 1990s." 30/2 (Spring 1997): 139-52. BRA Litto, Fredric M. "Professional Theatre Education in Brazil." 27/1 (Fall 1993): 29-38. BR Magnarelli, Sharon. "Authoring the Scene, Playing the Role: Mothers... and in Contemporary Spanish American Drama." 26/1 (Fall 1992): 23-41. GEN Ramos Escobar, José Luis. "La pedagogía teatral en Puerto Rico." 27/1 (Fall 1993): 71-73. PR Ravetti, Graciela and Sara Rojo. "Maria Adelaide Amaral ou a Crise da Classe Média Brasileira...

Medina, Manuel F.

1997-04-01

110

The Biogeography of the Cloud Forest Herpetofauna of Middle America, with Special Reference to the Sierra de las Minas of Guatemala  

E-print Network

Dryadophis Stuart, 1939, in favor of Mastigodryas Amaral, 1934, for reasons given by Smith (1963). I follow in part the unpublished proposals of Burger (1971) in dealing with the pitvipers by recognizing the genus Bothriechis for the Middle American tree... to at least 1000 m. The upper limits of cloud forest may vary even more than the lower limits. At higher elevations, much of the moisture may have been extracted from the air and the forest becomes drier, species of pines or fir prevail, and. the trees...

Campbell, Jonathan A.

1982-12-01

111

GIANT: a cytoscape plugin for modular networks.  

PubMed

Network analysis provides deep insight into real complex systems. Revealing the link between topological and functional role of network elements can be crucial to understand the mechanisms underlying the system. Here we propose a Cytoscape plugin (GIANT) to perform network clustering and characterize nodes at the light of a modified Guimerà-Amaral cartography. This approach results into a vivid picture of the a topological/functional relationship at both local and global level. The plugin has been already approved and uploaded on the Cytoscape APP store. PMID:25275465

Cumbo, Fabio; Paci, Paola; Santoni, Daniele; Di Paola, Luisa; Giuliani, Alessandro

2014-01-01

112

77 FR 53887 - Change in Bank Control Notices; Acquisitions of Shares of a Savings and Loan Holding Company  

Federal Register 2010, 2011, 2012, 2013, 2014

...64198-0001: 1. Billy D. Cole and Joy Y. Cole, St. Joseph, Missouri; Nancy Stonner, Blue Springs, Missouri; Norma Cole, Redmond, Washington; Mary Benson, New York, New York; and Thomas Cole, Liberty, Missouri; as a group acting in concert,...

2012-09-04

113

Associate Chair, Finance & Administration  

E-print Network

Shumi Khan Academic Affairs Specialist Phil Kent Facili es Gordon Sinclair IT Systems Mitra Haddad Educa on Services Donna Schurr Execu ve Assistant and Office Manager Norma Malina Facili es Gareth Ryan Evans

Kay, Mark A.

114

VICE CHANCELLOR RESEARCH Michael Witherell  

E-print Network

Repatriation Organized Research Units (ORU) Embryonic Stem Cell Research Oversight (ESCRO) Norma Marquez Subjects Conflict of Interest Biosafety Stem Cell Research Export Control Research Misconduct RepatriationVICE CHANCELLOR RESEARCH Michael Witherell ASSISTANT VICE CHANCELLOR RESEARCH Karen Hanson

California at Santa Barbara, University of

115

ANALYSIS OF HYDROPONIC FERTILIZER MATRIXES FOR PERCHLORATE: COMPARISON OF ANALYTICAL TECHNIQUES  

EPA Science Inventory

Seven retail hydroponic nitrate fertilizer products, two liquid and five solid, were comparatively analyzed for the perchlorate anion (ClO4-) by ion chromatography (IC) with suppressed conductivity detection, complexation electrospray ionization mass spectrometry (cESI-MS), norma...

116

COTSEN INSTITUTE OF ARCHAEOLOGY  

E-print Network

, Howard and Norma Sammy Yu-Kuan Lee Foundation Lieberfarb, Gail Kamer and Warren N. Lin, Agnes Lucas, Herbert L. and Ann S. Lynton, Jamie and Michael MacCary, William and Karla Magalousis, Nicholas M. S P E C

117

FACTORS AFFECTING SENSITIVITY OF CHEMICAL AND ECOLOGICAL RESPONSES OF MARINE EMBAYMEMTS TO NITROGEN LOADING  

EPA Science Inventory

This paper summarizes an ongoing examination of the primary factors that affect sensitivity of marine embayment responses to nitrogen loading. Included is a discussion of two methods for using these factors: classification of embayments into discrete sensitivity classes and norma...

118

A review of "State Formation in Early Modern England, c. 1550-1700." by Michael J. Braddick  

E-print Network

, ?increasingly routine and less spectacular? (173). In some ways, the eighteenth- century administrators described by Norma Landau (The Justices of the Peace, 1679-1760) do not look all that different from those discussed by Paul Slack (Poverty and Policy...

Molly Mcclain

2002-01-01

119

Asteroids Observed from GMARS and Santana Observatories: 2011 October- December  

NASA Astrophysics Data System (ADS)

Lightcurves of six asteroids were obtained from Santana Observatory and Goat Mountain Astronomical Research Station (GMARS): 555 Norma, 1028 Lydina, 1123 Shapleya, 1178 Irmela, 3436 Ibadinov, and 6042 Cheshirecat.

Stephens, Robert D.

2012-04-01

120

Avaliao da QoS em redes Ethernet M. Carmo, J. S Silva, E. Monteiro, P. Simes, M. Curado and F. Boavida  

E-print Network

Avaliação da QoS em redes Ethernet M. Carmo, J. Sá Silva, E. Monteiro, P. Simões, M. Curado and F redes Ethernet foi superada com o desenvolvimento das normas IEEE 802.1D e IEEE 802.1Q. Este artigo serviço em redes Ethernet. Os módulos respeitam as normas IEEE 802.1Q/D e implementam as recomendações

Monteiro, Edmundo

121

Sublattice parallel replica dynamics  

NASA Astrophysics Data System (ADS)

Exascale computing presents a challenge for the scientific community as new algorithms must be developed to take full advantage of the new computing paradigm. Atomistic simulation methods that offer full fidelity to the underlying potential, i.e., molecular dynamics (MD) and parallel replica dynamics, fail to use the whole machine speedup, leaving a region in time and sample size space that is unattainable with current algorithms. In this paper, we present an extension of the parallel replica dynamics algorithm [A. F. Voter, Phys. Rev. B 57, R13985 (1998), 10.1103/PhysRevB.57.R13985] by combining it with the synchronous sublattice approach of Shim and Amar [Y. Shim and J. G. Amar, Phys. Rev. B 71, 125432 (2005), 10.1103/PhysRevB.71.125432], thereby exploiting event locality to improve the algorithm scalability. This algorithm is based on a domain decomposition in which events happen independently in different regions in the sample. We develop an analytical expression for the speedup given by this sublattice parallel replica dynamics algorithm and compare it with parallel MD and traditional parallel replica dynamics. We demonstrate how this algorithm, which introduces a slight additional approximation of event locality, enables the study of physical systems unreachable with traditional methodologies and promises to better utilize the resources of current high performance and future exascale computers.

Martínez, Enrique; Uberuaga, Blas P.; Voter, Arthur F.

2014-06-01

122

Geology and metallogeny of the Ar Rayn terrane, eastern Arabian shield: Evolution of a Neoproterozoic continental-margin arc during assembly of Gondwana within the East African orogen  

USGS Publications Warehouse

The Neoproterozoic Ar Rayn terrane is exposed along the eastern margin of the Arabian shield. The terrane is bounded on the west by the Ad Dawadimi terrane across the Al Amar fault zone (AAF), and is nonconformably overlain on the east by Phanerozoic sedimentary rocks. The terrane is composed of a magmatic arc complex and syn- to post-orogenic intrusions. The layered rocks of the arc, the Al Amar group (>689 Ma to ???625 Ma), consist of tholeiitic to calc-alkaline basaltic to rhyolitic volcanic and volcaniclastic rocks with subordinate tuffaceous sedimentary rocks and carbonates, and are divided into an eastern and western sequence. Plutonic rocks of the terrane form three distinct lithogeochemical groups: (1) low-Al trondhjemite-tonalite-granodiorite (TTG) of arc affinity (632-616 Ma) in the western part of the terrane, (2) high-Al TTG/adakite of arc affinity (689-617 Ma) in the central and eastern part of the terrane, and (3) syn- to post-orogenic alkali granite (607-583 Ma). West-dipping subduction along a trench east of the terrane is inferred from high-Al TTG/adakite emplaced east of low-Al TTG. The Ar Rayn terrane contains significant resources in epithermal Au-Ag-Zn-Cu-barite, enigmatic stratiform volcanic-hosted Khnaiguiyah-type Zn-Cu-Fe-Mn, and orogenic Au vein deposits, and the potential for significant resources in Fe-oxide Cu-Au (IOCG), and porphyry Cu deposits. Khnaiguiyah-type deposits formed before or during early deformation of the Al Amar group eastern sequence. Epithermal and porphyry deposits formed proximal to volcanic centers in Al Amar group western sequence. IOCG deposits are largely structurally controlled and hosted by group-1 intrusions and Al Amar group volcanic rocks in the western part of the terrane. Orogenic gold veins are largely associated with north-striking faults, particularly in and near the AAF, and are presumably related to amalgamation of the Ar Rayn and Ad Dawadimi terranes. Geologic, structural, and metallogenic characteristics of the Ar Rayn terrane are analogous to the Andean continental margin of Chile, with opposite subduction polarity. The Ar Rayn terrane represents a continental margin arc that lay above a west-dipping subduction zone along a continental block represented by the Afif composite terrane. The concentration of epithermal, porphyry Cu and IOCG mineral systems, of central arc affiliation, along the AAF suggests that the AAF is not an ophiolitic suture zone, but originated as a major intra-arc fault that localized magmatism and mineralization. West-directed oblique subduction and ultimate collision with a land mass from the east (East Gondwana?) resulted in major transcurrent displacement along the AAF, bringing the eastern part of the arc terrane to its present exposed position, juxtaposed across the AAF against a back-arc basin assemblage represented by the Abt schist of the Ad Dawadimi terrane. Our findings indicate that arc formation and accretionary processes in the Arabian shield were still ongoing into the latest Neoproterozoic (Ediacaran), to about 620-600 Ma, and lead us to conclude that evolution of the Ar Rayn terrane (arc formation, accretion, syn- to postorogenic plutonism) defines a final stage of assembly of the Gondwana supercontinent along the northeastern margin of the East African orogen. ?? 2007 Elsevier B.V. All rights reserved.

Doebrich, J.L.; Al-Jehani, A. M.; Siddiqui, A.A.; Hayes, T.S.; Wooden, J.L.; Johnson, P.R.

2007-01-01

123

Flash Updates of GSC projects (GSC8 Meeting)  

ScienceCinema

The Genomic Standards Consortium was formed in September 2005. It is an international, open-membership working body which promotes standardization in the description of genomes and the exchange and integration of genomic data. The 2009 meeting was an activity of a five-year funding Research Coordination Network from the National Science Foundation and was organized held at the DOE Joint Genome Institute with organizational support provided by the JGI and by the University of California - San Diego. In quick succession Frank Oliver Glockner (MPI-Bremen), Victor Markowitz (LBNL), Nikos Kyripides (JGI), Folker Meyer (ANL), Linda Amaral-Zettler (Marine Biology Lab), and James Cole (Michigan State University) provide updates on a number of topics related to GSC projects at the Genomic Standards Consortium 8th meeting at the DOE JGI in Walnut Creek, Calif. on Sept. 9, 2009.

Glockner, Frank Oliver; Markowitz, Victor; Kyrpides, Nikos; Meyer, Folker; Amaral-Zettler, Linda; Cole, James

2011-04-29

124

The shape of soap films and Plateau borders  

NASA Astrophysics Data System (ADS)

We have calculated the shapes of flat liquid films, and of the transition region to the associated Plateau borders (PBs), by integrating the Laplace equation with a position-dependent surface tension ?(x), where 2x is the local film thickness. We discuss films in either zero or non-zero gravity, using standard ?(x) potentials for the interaction between the two bounding surfaces. We have investigated the effects of the film flatness, liquid underpressure, and gravity on the shape of films and their PBs. Films may exhibit 'humps' and/or 'dips' associated with inflection points and minima of the film thickness. Finally, we propose an asymptotic analytical solution for the film width profile. This paper is dedicated to the memory of Professor Manuel Amaral Fortes, who passed away on April 22nd 2007.

Fortes, M. A.; Teixeira, P. I. C.; Deus, A. M.

2007-06-01

125

Extinction Dynamics and Evolution of a Survivability-Based Multi-Level Food-Web Model  

NASA Astrophysics Data System (ADS)

A multi-level evolution model where forced extinctions occur throughout the system based on a species fitness value (or survivability) is developed that is essentially the fusion of the evolution model of Bak and Sneppen and the food-web model of Amaral and Meyer. This model is found to describe the fossil record and behave as a self-organized critical system with a power law exponent of approximately 2, but is also found to be remarkably similar to a model that causes the forced extinctions randomly throughout the system. To explain this result we show that fitness is nearly randomly distributed with a slight peak in forced extinction (due to fitness) in the middle levels. These findings lend strong support to the hypothesis that coextinction effects (propagated through a food-web) provide a robust explanation of the fossil record, independent of the mechanism for species competition.

Berger, B. W.; Boulter, C. J.

126

Evolution of optimal Lévy-flight strategies in human mental searches  

NASA Astrophysics Data System (ADS)

Recent analysis of empirical data [Radicchi, Baronchelli, and Amaral, PloS ONE1932-620310.1371/journal.pone.0029910 7, e029910 (2012)] showed that humans adopt Lévy-flight strategies when exploring the bid space in online auctions. A game theoretical model proved that the observed Lévy exponents are nearly optimal, being close to the exponent value that guarantees the maximal economical return to players. Here, we rationalize these findings by adopting an evolutionary perspective. We show that a simple evolutionary process is able to account for the empirical measurements with the only assumption that the reproductive fitness of the players is proportional to their search ability. Contrary to previous modeling, our approach describes the emergence of the observed exponent without resorting to any strong assumptions on the initial searching strategies. Our results generalize earlier research, and open novel questions in cognitive, behavioral, and evolutionary sciences.

Radicchi, Filippo; Baronchelli, Andrea

2012-06-01

127

Flash Updates of GSC projects (GSC8 Meeting)  

SciTech Connect

The Genomic Standards Consortium was formed in September 2005. It is an international, open-membership working body which promotes standardization in the description of genomes and the exchange and integration of genomic data. The 2009 meeting was an activity of a five-year funding Research Coordination Network from the National Science Foundation and was organized held at the DOE Joint Genome Institute with organizational support provided by the JGI and by the University of California - San Diego. In quick succession Frank Oliver Glockner (MPI-Bremen), Victor Markowitz (LBNL), Nikos Kyripides (JGI), Folker Meyer (ANL), Linda Amaral-Zettler (Marine Biology Lab), and James Cole (Michigan State University) provide updates on a number of topics related to GSC projects at the Genomic Standards Consortium 8th meeting at the DOE JGI in Walnut Creek, Calif. on Sept. 9, 2009.

Glockner, Frank Oliver; Markowitz, Victor; Kyrpides, Nikos; Meyer, Folker; Amaral-Zettler, Linda; Cole, James

2009-09-09

128

Fast Quantification of Proton Magnetic Resonance Spectroscopic Imaging with Artificial Neural Networks  

PubMed Central

Accurate quantification of the MRSI-observed regional distribution of metabolites involves relatively long processing times. This is particularly true in dealing with large amount of data that is typically acquired in multi-center clinical studies. To significantly shorten the processing time, an artificial neural network (ANN) based approach was explored for quantifying the phase corrected (as opposed to magnitude) spectra. Specifically, in these studies radial basis function neural network (RBFNN) was used. This method was tested on simulated and normal human brain data acquired at 3T. The N-acetyl aspartate (NAA)/ creatine (Cr), choline (Cho)/Cr, Glutamate + Glutamine (Glx)/Cr, and Myo-inositol (mI)/Cr ratios in normal subjects were compared with the line fitting (LF) technique and jMRUI-AMARES analysis, and published values. The average NAA/Cr, Cho/Cr, Glx/Cr and mI/Cr ratios in normal controls were found to be 1.58 ± 0.13, 0.9 ± 0.08, 0.7 ± 0.17 and 0.42 ± 0.07 respectively. The corresponding ratios using the LF and jMRUI-AMARES methods were 1.6 ± 0.11, 0.95 ± 0.08, 0.78 ± 0.18, 0.49 ± 0.1 and 1.61 ± 0.15, 0.78 ± 0.07, 0.61 ± 0.18, 0.42 ± 0.13 respectively. These results agree with those published in literature. Bland-Altman analysis indicated an excellent agreement and minimal bias between the results obtained with RBFNN and other methods. The computational time for the current method was 15 seconds compared to approximately 10 minutes for the LF-based analysis. PMID:16949319

Bhat, Himanshu; Sajja, Balasrinivasa Rao; Narayana, Ponnada A.

2006-01-01

129

Integration of CC®, IAQ, and EM for an Optimum and Proactive Energy Performance at Alamo Colleges, San Antonio, Texas.  

E-print Network

: Superintendents, Facilities Foreman and HVAC Foreman Energy Systems Laboratory PI: Joseph Martinez, PCC. Ian Nelson (PhD student) Agnes Almeida (MSc student) Ahmet Ugursal, PhD Norma Rangel, PhD Juan-Carlos Baltazar, PhD Alaina Jones (PhD student) Energy...

Rangel, N.; O'Neal, S.; Martinez, J.; Strybos, J.

2012-01-01

130

A Whole Language Program in the Intermediate Grades: Questions and Answers.  

ERIC Educational Resources Information Center

Focusing on a whole language program for the middle grades in Canada's Northwest Territories, this interview transcript consists of responses by Anne Davies, a teacher from Yellow Knife, in the Northwest Territories, and currently a doctoral student, to questions posed by Norma Mickelson, a professor at the University of Victoria in British…

Mickelson, Norma; Davies, Anne

131

UNIVERSIDADE FEDERAL DO PARAN SISTEMA DE BIBLIOTECAS  

E-print Network

, dicionários, filmes, vídeos, discos, normas técnicas, microformas, partituras, patentes, dentre outros Bibliográficos (anexo 2), fornecendo os dados que permitem identificar com precisão a obra desejada (autor três dólares americanos) por editor/fornecedor, o qual corresponde à taxa cobrada pelo Banco do Brasil

Paraná, Universidade Federal do

132

UNIVERSIDADE FEDERAL DO PARAN SETOR DE CINCIAS HUMANAS, LETRAS E ARTES -SCHLA  

E-print Network

a docência na teologia, segundo os estados federativos 19 LISTA DE TABELAS Tabela 1 ­ Docentes por sexo da de Normas Técnicas CD-ROM Compact Disc-Read Only Memory DVD Digital Video Disc IBGE Instituto

Paraná, Universidade Federal do

133

A Lightning Rod on Civil Rights.  

ERIC Educational Resources Information Center

Examines the work of Norma V. Cantu, the head of the U.S. Department of Education's Office for Civil Rights and the controversy surrounding her tenure. Issues discussed include the range of concerns she must address, including affirmative action, gender equity in athletics, and college desegregation in the South, and her strategies for…

Healy, Patrick

1999-01-01

134

Evolutionary Algorithms and Frequent Itemset Mining for Analyzing Epileptic Oscillations  

E-print Network

Green, Dr. Sonya Greene, Clarence Brown, Dr. Harriet Jenkins, Dr. Norma J. Burgess, and Charlie Burgess Wilson, Harry and Mattie Williams, Mr. And Mrs. Burgess, Luverta Smart, Otis Lee Smart Jr., and Viola. Jenkins Predoctoral Fellowship Program, Southern Regional Educational Board Doctoral Scholars Program

Fernandez, Thomas

135

Análisis del sistema de costos en una empresa productora de pastas alimenticias  

Microsoft Academic Search

Los Sistemas de Costos son conjuntos de métodos, normas y procedimientos, que rigen la planificación, determinación y análisis del costo, así como el proceso de registro de los gastos de una o varias actividades productivas en una empresa, de forma interrelacionada con los subsistemas que garantizan el control de la producción y de los recursos materiales, laborales y financieros. En

Alberto Maximino Fuentes Martínez

2011-01-01

136

Reseña del desarrollo de sistemas nacionales contra la legitimación de recursos de procedencia ilícita en el sistema financiero y en los mercados de capitales de algunos países de América Latina  

Microsoft Academic Search

El documento que se presenta a continuación está orientado a destacar los aspectos básicos que deben ser considerados por los países de nuestra región para establecer instituciones, normas jurídicas y regulaciones eficientes y adecuadas para prevenir con posibilidades de éxito al delito de lavado de dinero, ilícito de carácter transnacional que tiene la capacidad de ejercer nocivos efectos sobre las

Pedro Luis Echeverría

2001-01-01

137

REDUCTION OF IONIC SPECIES BY FULVIC ACID  

EPA Science Inventory

Studies have shown that a fulvic acid derived from soil is capable of reducing Hg(II) to Hg(0), Fe(III) to Fe(II), and I2 and I3(-1) to I(-1) under conditions generally characteristic of natural waters. The evaluation indicates a reduction potential approximately 0.5 V (vs. norma...

138

EVALUACIÓN Y ANÁLISIS DE EFICIENCIA DE LA EDUCACIÓN EN COLOMBIA  

Microsoft Academic Search

En este documento se presenta una visión amplia de los problemas y del funcionamiento del sector educativo en Colombia, con énfasis en la educación pública. Con este fin, en primer lugar, se realiza una evaluación detallada de las normas sobre descentralización educativa, así como de aquellas que rigen la carrera docente en el país; también se evalúa el comportamiento reciente

Ana María Iregui; Ligia Melo B; Jorge Ramos F

2006-01-01

139

La educación en Colombia: Análisis del marco normativo y de los indicadores sectoriales  

Microsoft Academic Search

En este documento se presenta una visión amplia de los problemas y del funcionamiento del sector educativo en Colombia, con énfasis en la educación pública. Inicialmente, se realiza una breve descripción de la política educativa durante las últimas décadas. Posteriormente, se realiza una evaluación detallada de las normas sobre descentralización educativa, así como de aquellas que rigen la carrera docente

Ana María Iregui; Ligia Melo; Jorge Ramos

2006-01-01

140

NUOVO DISEGNO DI UNA PROTESI TRANS-TIBIALE IN MATERIALE COMPOSITO  

Microsoft Academic Search

Sommario In questo lavoro è descritta la procedura speriment ale utilizzata per verificare la tenuta strutturale di protesi di arti inferiori in materiale composito a fibra di carbonio secondo la norma ISO 10328. Due tipi di protesi sono state sperimentalmente verific ate attraverso attrezzature appositamente progettat e per prove sperimentali statiche e di fatica: una pe r camminare costituita da

C. Colombo; B. Mangiante; F. Ricotti

141

1 Jornadas Cientfico Tcnica de Ulab Horario MIRCOLES 29 DE MAYO JUEVES 30 DE MAYO VIERNES 31 DE MAYO  

E-print Network

"Tendencias en los Laboratorios Universitarios" Propuesta de Presentación del Manual de Normas y "Tendencias en los Laboratorios Universitarios" 9:45 - 10:00 Almacenamiento Seguro de Reactivos y Gestión de Desechos Químicos y Materiales Recuperables en los Laboratorios Adscritos al Laboratorio B de la U.S.B. 10

Vásquez, Carlos

142

Managing and analysing data from a large-scale study on Framingham Offspring relating brain structure to cognitive function  

Microsoft Academic Search

SUMMARY At the Framingham Heart Study under separate research grant funding from the National Institute of Aging, NIH, we are gathering brain structure and cognitive information on the Framingham Ospring, creating one of the largest known data sets to assess changes in brain structure associated with norma- tive ageing and cognitive decline. Subject recruitment, data collection, data management and statistical

Joseph M. Massaro; Ralph B. D'Agostino Srem; Lisa M. Sullivan; Alexa Beiser; Charles DeCarli; Rhoda Au; Merrill F. Elias; Philip A Wolf

2004-01-01

143

Hyperbolic: Divining Ayahuasca  

Microsoft Academic Search

Twenty minutes in, like clockwork, the visions begin. They are strong but I was expecting them this time. Norma, the vegetalista who so astonished me with her care, skill and knowledge during my first ceremony two nights prior, had packed a big bowl with a knot of the local Nicotina Rustica and had blown curling, whistling smoke over a plastic

Richard Doyle

2005-01-01

144

New Responses to Enduring Questions in Religious and Theological Education  

ERIC Educational Resources Information Center

This article offers a response to two provocative questions about the relationship of theology to religious education posed by Norma Thompson in her Presidential address given at the annual meeting of APRRE in 1978. I offer contemporary answers to these questions from the perspective of a theological educator. First, I show how feminist theory and…

Siejk, Cate

2011-01-01

145

September 2011 APPENDIX E: HSEMS Chart of Responsibilities for College of Pharmacy and Nutrition  

E-print Network

September 2011 APPENDIX E: HSEMS Chart of Responsibilities for College of Pharmacy and Nutrition Dean of Pharmacy & Nutrition OVERALL RESPONSIBILITY FOR HSEMS Dr. David Hill P/N WSEP Chair HSEMS 1 Nutrition Resource Centre Dr. Shawna Berenbaum G29 THORV Foods Lab Norma Greer Course Instructor Course

Saskatchewan, University of

146

Las difíciles relaciones entre teoría, práctica y metodología en la psicología del siglo XXI. (I) Sobre algunas disyuntivas  

Microsoft Academic Search

Las decisiones prácticas en las ciencias del comportamiento se han venido apoyando en conocimientos supuestamente obtenidos a partir de indagaciones que, también supuestamente, siguen las normas de la investigación científica. Retomar la distinción entre sistemas sociales y epistemológicos implicada en la oposición entre el sistema ciencia-técnica y el sistema interacción-comunicación permite entender por qué la llamada “investigación científica” en el

Juan Delgado Sánchez-Mateos

2008-01-01

147

La utilización de instrumentos de medida en situaciones de contacto de lenguas y de culturas: una reflexión metodológica  

Microsoft Academic Search

En el contexto europeo en el que vivimos, las situaciones de contacto de lenguasy de contacto de culturas, más que una excepción, son la norma, lo habitual. Es más, la propia historia de la Europa que conocemos es una historia de contacto, de intercambio y, en definitiva, de interacción continua entre distintas lenguas y culturas. Lo extraño o lo poco

Xabier Isasi Balanzategi; Nekane Balluerka Lasa; Arantxa Gorostiaga Manterola

2000-01-01

148

Chandra X-ray Observatory Center  

E-print Network

Chandra X-ray Observatory Center Harvard-Smithsonian Center for Astrophysics 60 Garden St. Cambridge, MA 02138 USA http://chandra.harvard.edu ESO 137-001: A spiral galaxy in the Norma cluster over, & the Hubble Heritage Team (STScI/AURA) Caption: This composite image from the Chandra X-ray Observatory (blue

149

Chapter & Verse  

ERIC Educational Resources Information Center

Neal Frey reads textbooks for a living, a job he finds singularly fulfilling. For more than two decades, he had labored on behalf of Educational Research Analysts, a conservative Christian textbook-reviewing organization in Longview, Texas, founded by the famously outspoken husband-and-wife team of Mel Gabler and Norma Gabler. Since the early…

Cavanagh, Sean

2006-01-01

150

Spectroscopic Studies of Colloidal Solutions of Nanocrystalline Ru(bpy)3 2+-Zeolite Y  

E-print Network

Spectroscopic Studies of Colloidal Solutions of Nanocrystalline Ru(bpy)3 2+-Zeolite Y Norma B of Ru(bpy)3 2+-zeolite Y has made it possible to use conventional optical transmission spectroscopic methods to examine the entrapped Ru(bpy)3 2+ species within the zeolite. To prepare the suspensions

Dutta, Prabir K.

151

DIGITAL.CSIC: "Catalogacin con Dublin Core, gestin de derechos de  

E-print Network

DIGITAL.CSIC: "Catalogación con Dublin Core, gestión de derechos de autor y permisos de editores;Copyright y el acceso abierto #12;¿De qué estamos hablando? · Derechos de autor: conjunto de normas y principios que regulan los derechos morales y patrimoniales que la ley concede a los autores por el solo

152

INTEGRAL non-detection of AGL J1608-5253  

NASA Astrophysics Data System (ADS)

The new AGILE transient AGL J1608-5253 (ATel #6427) was in the field of view of the IBIS/ISGRI and JEM-X instruments onboard INTEGRAL from Aug 19-26, 2014 (UTC) during observations of the Norma/Perseus arms region.

Kuulkers, E.; Bozzo, E.; Bodaghee, A.

2014-08-01

153

First Annual ODI Honors and Awards Reception The Office of Diversity and Inclusion (ODI) held its inaugural Honors and Awards Reception on  

E-print Network

First Annual ODI Honors and Awards Reception The Office of Diversity and Inclusion (ODI) held its of Diversity and Inclusion were honored. Norma Caban, ODI Director of Community Outreach, was honored students. Edie Waugh, an ODI retiree, was given the "Beyond the Call of Duty" award for her many years

154

Women's Leadership and Authority in the Health Professions. Proceedings of a Conference at UC Santa Cruz, June 19-21, 1977.  

ERIC Educational Resources Information Center

The proceedings of a conference on women's leadership and authority in the health professions is presented. Following the opening remarks by Patricia Borne, speeches by Lucy Geiselman on the history of women in the health sciences and Sheryl Ruzek on the purpose of the conference are presented. The keynote address by Norma Juliet Wikler on the…

California Univ., San Francisco.

155

Evaluation and Assessment in Educational Information Technology.  

ERIC Educational Resources Information Center

This book contains the following articles on evaluating and assessing educational information technology: (1) "Assessing Learning in the New Age of Information Technology in Education" (Leping Liu, D. LaMont Johnson, Cleborne D. Maddux, and Norma J. Henderson); (2) "Instruments for Assessing the Impact of Technology in Education" (Rhonda…

Liu, Leping, Ed.; Johnson, D. LaMont, Ed.; Maddux, Cleborne D., Ed.; Henderson, Norma J., Ed.

156

Utah Commission on Aging Minutes for February 17, 2006  

E-print Network

Utah Commission on Aging Minutes for February 17, 2006 Commission Member Attendees: TantaLisa Clayton Utah Legal Services William Cox Rich County Rob Ence AARP Michael Jones Utah Department of Financial Institutions Pat Jones Utah House of Representatives Norma Matheson Honorary Chair Shauna O

Tipple, Brett

157

Utah Commission on Aging June 3, 2008  

E-print Network

MINUTES Utah Commission on Aging June 3, 2008 12:00 ­ 2:00 pm Commission Member Attendees: Representing: Norma Matheson Chair Maureen Henry Executive Director David Sundwall Utah Department of Health for Deborah Bayle United Way Archie Archuleta Ethnic Minorities Alan Ormsby for LM Church Utah Department

Tipple, Brett

158

Utah Commission on Aging Minutes for January 11, 2006 Meeting  

E-print Network

Utah Commission on Aging Minutes for January 11, 2006 Meeting Commission Member Attendees: Allen Christensen Utah Senate Lisa-Michele Church Utah Department of Human Services TantaLisa Clayton Utah Legal AARP Leone Harwood Utah Department of Transportation Larry Marx Taylorsville Police Department Norma

Tipple, Brett

159

Utah Commission on Aging June 6, 2007  

E-print Network

MINUTES Utah Commission on Aging June 6, 2007 1:00 ­ 2:30 pm Commission Member Attendees: Lisa-Michele Church DHS TantaLisa Clayton Utah Legal Services Rob Ence AARP Michael Jones Utah Department of Financial Institutions Norma Matheson Chair Anne Peterson University of Utah Mayor JoAnn Seghini Midvale City Sara

Tipple, Brett

160

What Works for Me.  

ERIC Educational Resources Information Center

Provides suggestions on various English instruction topics. Includes (1) "Argumentation Exercise," Hari Vishwanadha; (2) "How to Survive Developmental (or Any Other) English," Sally Russell; (3) "Reach Out to an Expert," Norma A. Register; (4) "Summary and Response Writing," Alec Valentine; (5) "The Living Journal," Blair Spencer Ray; and (6)…

Vishwanadha, Hari; And Others

1990-01-01

161

AVN 2/2002 61 Sensitive control of  

E-print Network

and the circle are included. Fourthly we present case studies for the local represen- tation of the clothoid plane we consider a pla- nar curve x(s) which is parameterized by its arc length s. For a local as · the standard Euclidean norm (l2 ­ norm). µµ := f1 is called normalized tangent vector, v := f2 norma- lized

Stuttgart, Universität

162

New Music Concerts of Toronto: A Critical Study  

Microsoft Academic Search

New Music Concerts, an organization founded in Toronto in 1971 by Robert Aitken and Norma Beecroft, was created for the purpose of presenting concerts of contemporary art music. From its first concert, on January 6, 1972, until the end of NMC's 1982-1983 season (the period examined in this study), New Music Concerts has presented 83 programmes on its main concert

Colin Eatock

1984-01-01

163

NEW MUSIC CONCERTS OF TORONTO: A CRITICAL STUDY  

Microsoft Academic Search

New Music Concerts, an organization founded in Toronto in 1971 by Robert Aitken and Norma Beecroft, was created for the purpose of presenting concerts of contemporary art-music. From its first concert, on January 6, 1972, until the end of NMC's 1982-1983 season (the period examined in this study), New Music Concerts has presented 83 programmes on its main concert series

Colin Eatock

1984-01-01

164

Simulation code for ICF including radiative energy transfer  

NASA Astrophysics Data System (ADS)

Improvements in the atomic physics environment or the Inertial Confinement Fusion (ICF) code NORMA, together with algorithms for radiation transport are presented. Using that code, results on LHAR targets of ILE are reported and compared with ILESTA and HISHO-1D codes.

Velarde, G.; Aragones, J. M.; Honrubia, J. J.; Martinez-Val, J. M.; Minguez, E.; Ocana, J. L.; Perlado, J. M.

1988-02-01

165

Using Dialogue between Researcher and Participants as a Method of Coping with Issues of Credibility in Translation of Hispanics' Professional Presentations.  

ERIC Educational Resources Information Center

This paper contrasts Edward Hall's microcultural analysis method of teaching members of different cultures how to interact with the others, with Norma Flores' macrocultural Intercultural Assessment of Communication Competency and English Speaking Skills (I ACCESS) method of giving members of different cultures an opportunity to collaborate with…

Flores, Norma Landa

166

February 14, 2004 PSYCHO? LOGICAL? BULLETIN  

E-print Network

Teasers 1. Joan 2. Lara 3. Cibu 4. Jarrod 5. Sarah N. 6. Stefani 7. Scott 8. Norma 9. Elida 10. Miriam 11. Jacques 12. Dana 13. Gary 14. Erin V. 15. Rachel 16. Anthony 17. Julie 18. Erin I. SO YOU THINK YOU'RE SO

167

Critical Issues in Mathematics Education  

E-print Network

, Montana State University­Bozeman, USA Mohan Chinnappan, University of Wollongong, Australia Constantinos, Université de Moncton, Canada Brian Greer, Portland State University, USA Eric Gutstein, University Mukhopadhyay, Portland State University, USA Norma Presmeg, Illinois State University, USA Gudbjorg Palsdottir

Sriraman, Bharath

168

YA Novels in the AP Classroom: Crutcher Meets Camus.  

ERIC Educational Resources Information Center

Describes existential elements in three novels for adolescents: "The Crazy Horse Electric Game" and "Running Loose" by Chris Crutcher; and "God, the Universe and Hot Fudge Sundaes" by Norma Howe. Asserts that adolescent literature in an advanced-placement English class can connect the classics to the present. (MM)

Spencer, Patricia

1989-01-01

169

V VIIOOLL??NNCCIIAA SSEEXXUUAALL,, VVUULLNNEERRAABBIILLIIDDAADDEE EE DDOOEENN??AASS S SEEXXUUAALLMMEENNTTEE TTRRAANNSSMMIISSSS??VVEEIISS SSEEXX OOFFFFEENNSSEESS,, VVUULLNNEERRAABBIILLIITTYY AANNDD SSEEXXUUAALLLLYY TTRRAANNSSMMIITTTTEEDD DDIISSEEAASSEESS  

Microsoft Academic Search

Fundamentos: Estabelecendo uma relação assimétrica de poder e autoridade a violência sexual fere as normas do Direito e rompe as barrei- ras de classes sociais. Acometendo ambos os sexos e todas faixas etárias, ela ocorre tanto no espaço privado quanto no público, produzindo conseqüências físicas e psicológicas. Além das lesões genitais e extragenitais, as vítimas vivenciam a possibilidade da aquisiç

Jair N Reis; Carmen CS Martin; MV Bueno

170

Vent fluid chemistry of the Rainbow hydrothermal system (36°N, MAR): Phase equilibria and in situ pH controls on subseafloor alteration processes  

NASA Astrophysics Data System (ADS)

The Rainbow hydrothermal field is located at 36°13.8'N-33°54.15'W at 2300 m depth on the western flank of a non-volcanic ridge between the South AMAR and AMAR segments of the Mid-Atlantic Ridge. The hydrothermal field consists of 10-15 active chimneys that emit high-temperature (˜365 °C) fluid. In July 2008, vent fluids were sampled during cruise KNOX18RR, providing a rich dataset that extends in time information on subseafloor chemical and physical processes controlling vent fluid chemistry at Rainbow. Data suggest that the Mg concentration of the hydrothermal end-member is not zero, but rather 1.5-2 mmol/kg. This surprising result may be caused by a combination of factors including moderately low dissolved silica, low pH, and elevated chloride of the hydrothermal fluid. Combining end-member Mg data with analogous data for dissolved Fe, Si, Al, Ca, and H 2, permits calculation of mineral saturation states for minerals thought appropriate for ultramafic-hosted hydrothermal systems at temperatures and pressures in keeping with constraints imposed by field observations. These data indicate that chlorite solid solution, talc, and magnetite achieve saturation in Rainbow vent fluid at a similar pH (T,P) (400 °C, 500 bar) of approximately 4.95, while higher pH values are indicated for serpentine, suggesting that serpentine may not coexist with the former assemblage at depth at Rainbow. The high Fe/Mg ratio of the Rainbow vent fluid notwithstanding, the mole fraction of clinochlore and chamosite components of chlorite solid solution at depth are predicted to be 0.78 and 0.22, respectively. In situ pH measurements made at Rainbow vents are in good agreement with pH (T,P) values estimated from mineral solubility calculations, when the in situ pH data are adjusted for temperature and pressure. Calculations further indicate that pH (T,P) and dissolved H 2 are extremely sensitive to changes in dissolved silica owing to constraints imposed by chlorite solid solution-fluid equilibria. Indeed, the predicted correlation between dissolved silica and H 2 defines a trend that is in good agreement with vent fluid data from Rainbow and other high-temperature ultramafic-hosted hydrothermal systems. We speculate that the moderate concentrations of dissolved silica in vent fluids from these systems result from hydrothermal alteration of plagioclase and olivine in the form of subsurface gabbroic intrusions, which, in turn are variably replaced by chlorite + magnetite + talc ± tremolite, with important implications for pH lowering, dissolved sulfide concentrations, and metal mobility.

Seyfried, W. E., Jr.; Pester, Nicholas J.; Ding, Kang; Rough, Mikaella

2011-03-01

171

Emperical Laws in Economics Uncovered Using Methods in Statistical Mechanics  

NASA Astrophysics Data System (ADS)

In recent years, statistical physicists and computational physicists have determined that physical systems which consist of a large number of interacting particles obey universal "scaling laws" that serve to demonstrate an intrinsic self-similarity operating in such systems. Further, the parameters appearing in these scaling laws appear to be largely independent of the microscopic details. Since economic systems also consist of a large number of interacting units, it is plausible that scaling theory can be usefully applied to economics. To test this possibility using realistic data sets, a number of scientists have begun analyzing economic data using methods of statistical physics [1]. We have found evidence for scaling (and data collapse), as well as universality, in various quantities, and these recent results will be reviewed in this talk--starting with the most recent study [2]. We also propose models that may lead to some insight into these phenomena. These results will be discussed, as well as the overall rationale for why one might expect scaling principles to hold for complex economic systems. This work on which this talk is based is supported by BP, and was carried out in collaboration with L. A. N. Amaral S. V. Buldyrev, D. Canning, P. Cizeau, X. Gabaix, P. Gopikrishnan, S. Havlin, Y. Lee, Y. Liu, R. N. Mantegna, K. Matia, M. Meyer, C.-K. Peng, V. Plerou, M. A. Salinger, and M. H. R. Stanley. [1.] See, e.g., R. N. Mantegna and H. E. Stanley, Introduction to Econophysics: Correlations & Complexity in Finance (Cambridge University Press, Cambridge, 1999). [2.] P. Gopikrishnan, B. Rosenow, V. Plerou, and H. E. Stanley, "Identifying Business Sectors from Stock Price Fluctuations," e-print cond-mat/0011145; V. Plerou, P. Gopikrishnan, L. A. N. Amaral, X. Gabaix, and H. E. Stanley, "Diffusion and Economic Fluctuations," Phys. Rev. E (Rapid Communications) 62, 3023-3026 (2000); P. Gopikrishnan, V. Plerou, X. Gabaix, and H. E. Stanley, "Statistical Properties of Share Volume Traded in Financial Markets," Phys. Rev. E (Rapid Communications) 62, 4493-4496 (2000).

Stanley, H. Eugene

2001-06-01

172

Abundant molecular gas and inefficient SF in intra-cluster regions of a ram pressure stripped tail  

NASA Astrophysics Data System (ADS)

For the first time in any ram pressure stripped galaxy, we detect large amounts of cold molecular gas in the X-ray bright, and star forming tail of ESO 137-001 in the Norma cluster. We find very low star formation efficiency in the stripped gas, similar to values found in the outer spiral disks where however molecular gas is mostly undetected. The results were recently published in Jáchym et al. (2014).

Jáchym, P.; Sun, M.; Combes, F.; Cortese, L.; Kenney, J. D. P.

2015-02-01

173

LIurinL,( htnurtry.4J |1993) 0104-4203'9:l 506 00 I I 993  

E-print Network

(partnk,nt ol (iologt . [tnir\\,r!i!t ol North ( an)linu. ( hulrrt IIili. N(., a S..46rntrtrurL 01 llrurin/c ol'ils cstuil r). so thal I hc cstuarv is norma lly brack rsh ovcr nrosl o l ' l h e a r c a w h i c. wrth probablc eprsodtc (high dischargc) losscs scaward. rrt pamlico Sound. A\\ pilrl ol r sludy

Short, Daniel

174

The internal food distribution system of the Cibao Valley of the Dominican Republic  

E-print Network

is methodological because it relates to principles of procedure. An econorsist who admits norma- tive considerations is broader in scope and perceives problems differently than his colleague who is restricted to non-normative, or positivistic statements... to maximize a given social welfare function. This social welfare function, or criteria, is specified by society by its mechanisms of choice. In contradiction, Hicks [31] a leader of the normative school, which admits interpersonal comparisons of utility...

Norvell, Douglass Graham

2012-06-07

175

Engineering geologic studies of the Austin Chalk, Taylor Marl, and Quaternary alluvium Ellis County, Texas  

E-print Network

ENGINEERING GEOLOGIC STUDIES OF THE AUSTIN CHALK, TAYLOR MARL, AND QUATERNARY ALLUVIUM, ELLIS COUNTY, TEXAS A Thesis by JOHN GAYDEN WESTERFIELD Submitted to the Office of Graduate Studies of Texas A&M University in partial fullfillment... and content by: Norma (Chair of ford ommittee) Christ pher C. Mathewson (Member) Richard L. Carlson (Member) John H. 'Spa (H ad of Department) May 1989 ABSTRACT Engineering Geologic Studies of the Austin Chalk, Taylor Marl, and Quaternary Alluvium...

Westerfield, John Gayden

2012-06-07

176

Triangulum Australe  

NASA Astrophysics Data System (ADS)

(the Southern Triangle; abbrev. TrA, gen. Trianguli Australis; area 110 sq. deg.) a southern constellation which lies between Norma and Apus, and culminates at midnight in late May. It was first shown in Johann Bayer's atlas Uranometria of 1603, though it is usually attributed to the Dutch navigators Pieter Dirkszoon Keyser (also known as Petrus Theodorus) and Frederick de Houtman, who charted th...

Murdin, P.

2000-11-01

177

C o l l e g e o f E n g i n e e r i n g ERSITY OF TEXAS AT  

E-print Network

C o l l e g e o f E n g i n e e r i n g THEUNI V ERSITY OF TEXAS AT EL PASO COLLE GE OF ENGINE's List Cuellar, Christopher R. Cuellar, Miguel A. Cuevas, David Dale, Scott N. Davila, Cesar De Alva, Norma A. De Jesus, Javier E. De la Cruz, Jaime R. De la Fuente, Victor M. De la Paz, Cesar De la Torre

Ward, Karen

178

TALLER WI-FI Manuel Snchez Cuenca  

E-print Network

Alianza para la Compatibilidad de Ethernet inalámbrica (WECA), que fue creada en 1999. - IEEE 802.11eTALLER WI-FI Manuel Sánchez Cuenca msc@dif.um.es 18.11.2004 1. El estándar IEEE 802.11 El estándar IEEE 802.11 fue concebido en 1990 y aprobado finalmente siete años después. Se constituye en la norma

Sánchez Cuenca, Manuel

179

Universidade Federal de Santa Catarina Biblioteca Universitria  

E-print Network

Cengage A empresa Cengage Learning oferece dezenas de livros eletrônicos, de variados campos do saber sumário deste manual: Capítulo 1 ­ Normas de empréstimo dos livros eletrônicos. Capítulo 2 ­ Há duas formas para acessar e ler os livros eletrônicos. Capítulo 3 ­ Download do software de leitura Adobe

Floeter, Sergio Ricardo

180

Volume 68, Numbers 1&2 (Complete)  

E-print Network

of the Lake University E. Joe Johnson, Clayton State University EDITORIAL ASSISTANTS Jacob Schornick, Texas A&M University contents volume 68, nos. 1&2 ............................... spring-summer, 2010 John Considine, Dictionaries in Early Modern Europe... Tol- eration. Review by john mulryan ............................................................ 9 Abraham Stoll, Milton and Monotheism. Review by larry r. isitt ............. 12 Norma Landau, ed., Law, Crime and English Society, 1660-1830 Garthine...

Dickson, Donald

2010-01-01

181

Integrated RT-PCR/nested PCR diagnosis for differentiating between subgroups of plum pox virus.  

PubMed

An RT-PCR/nested PCR technique was developed for the simultaneous detection and typing of plum pox virus (PPV) and its major types--Dideron (D), Marcus (M), El-Amar (EA) and Cherry (C). Degenerated oligonucleotides were synthesized for the general detection of PPV, flanking the coding sequence for the N-terminal portion of the coat protein (CP), within which strain-specific differences were identified. On the basis of these characteristic differences, degenerated primer pairs were designed to differentiate between the four major subgroups of the virus in nested PCR reactions. The validity of the technique was tested on viral strains and cloned cDNAs overlapping the CP region. High specificity was observed with no detectable cross-reactions. The results of general PPV detection with the new primers and those of the PCR-based detection of the 3' non-coding region of the viral genome correlated with complete coincidence. The PCR typing results correlated well with those of the RsaI-RFLP and serological typing and revealed a surprisingly high incidence of PPV-D in Hungary. PMID:11226563

Szemes, M; Kálmán, M; Myrta, A; Boscia, D; Németh, M; Kölber, M; Dorgai, L

2001-04-01

182

Updating the Lamellar Hypothesis of Hippocampal Organization  

PubMed Central

Andersen et al. (1971) proposed that excitatory activity in the entorhinal cortex propagates topographically to the dentate gyrus, and on through a “trisynaptic circuit” lying within transverse hippocampal “slices” or “lamellae.” In this way, a relatively simple structure might mediate complex functions in a manner analogous to the way independent piano keys can produce a nearly infinite variety of unique outputs. The lamellar hypothesis derives primary support from the “lamellar” distribution of dentate granule cell axons (the mossy fibers), which innervate dentate hilar neurons and area CA3 pyramidal cells and interneurons within the confines of a thin transverse hippocampal segment. Following the initial formulation of the lamellar hypothesis, anatomical studies revealed that unlike granule cells, hilar mossy cells, CA3 pyramidal cells, and Layer II entorhinal cells all form axonal projections that are more divergent along the longitudinal axis than the clearly “lamellar” mossy fiber pathway. The existence of pathways with “translamellar” distribution patterns has been interpreted, incorrectly in our view, as justifying outright rejection of the lamellar hypothesis (Amaral and Witter, 1989). We suggest that the functional implications of longitudinally projecting axons depend not on whether they exist, but on what they do. The observation that focal granule cell layer discharges normally inhibit, rather than excite, distant granule cells suggests that longitudinal axons in the dentate gyrus may mediate “lateral” inhibition and define lamellar function, rather than undermine it. In this review, we attempt a reconsideration of the evidence that most directly impacts the physiological concept of hippocampal lamellar organization. PMID:23233836

Sloviter, Robert S.; Lømo, Terje

2012-01-01

183

The effects of meteorological factors on airborne fungal spore concentration in two areas differing in urbanisation level  

NASA Astrophysics Data System (ADS)

Although fungal spores are an ever-present component of the atmosphere throughout the year, their concentration oscillates widely. This work aims to establish correlations between fungal spore concentrations in Porto and Amares and meteorological data. The seasonal distribution of fungal spores was studied continuously (2005-2007) using volumetric spore traps. To determine the effect of meteorological factors (temperature, relative humidity and rainfall) on spore concentration, the Spearman rank correlation test was used. In both locations, the most abundant fungal spores were Cladosporium, Agaricus, Agrocybe, Alternaria and Aspergillus/Penicillium, the highest concentrations being found during summer and autumn. In the present study, with the exception of Coprinus and Pleospora, spore concentrations were higher in the rural area than in the urban location. Among the selected spore types, spring-autumn spores ( Coprinus, Didymella, Leptosphaeria and Pleospora) exhibited negative correlations with temperature and positive correlations both with relative humidity and rainfall level. On the contrary, late spring-early summer (Smuts) and summer spores ( Alternaria, Cladosporium, Epicoccum, Ganoderma, Stemphylium and Ustilago) exhibited positive correlations with temperature and negative correlations both with relative humidity and rainfall level. Rust, a frequent spore type during summer, had a positive correlation with temperature. Aspergillus/Penicillium, showed no correlation with the meteorological factors analysed. This knowledge can be useful for agriculture, allowing more efficient and reliable application of pesticides, and for human health, by improving the diagnosis and treatment of respiratory allergic disease.

Oliveira, M.; Ribeiro, H.; Delgado, J. L.; Abreu, I.

2009-01-01

184

Stability of a model food web.  

PubMed

We investigate numerically the stability of a model food web, introduced by Nunes Amaral and Meyer [Phys. Rev. Lett. 82, 652 (1999)]. The model describes a system of species located in niches at several levels. Upper level species are predating on those from a lower level. We show that the model web is more stable when it is larger, although the number of niches is more important than the number of levels. The food web is self-organizing itself, trying to reach a certain degree of complexity, i.e., number of species and links among them. If the system cannot achieve this state, it will go extinct. We demonstrate that the average number of links per species and the reduced number of species depend in the same way on the number of niches. We also determine how the stability of the food web depends on another parameter of the model, the killing probability. Despite keeping the ratio of the creation and killing probabilities constant, increasing the latter reduces significantly the stability of the model food web. We show that connectance dependence on the number of niches has a power-type character, which agrees with the field data, and that it decreases with the number of species also as a power-type function. PMID:19391786

Szwabi?ski, Janusz; Pekalski, Andrzej

2009-02-01

185

Saldanha Massif, Mid-Atlantic Ridge: A Controlled Source EM Study  

NASA Astrophysics Data System (ADS)

In November-December 2004 a controlled source electromagnetic (CSEM) survey was carried out on the axis of the Mid-Atlantic Ridge during cruise Charles Darwin 167. The work is centred on a non-transform offset between the FAMOUS and AMAR segments, at 36 34' North. Here, a prominent feature is the Saldanha massif: a dome of unroofed mantle rocks, consisting largely of serpentised peridotites, and at whose summit significant low-temperature hydrothermal venting has been documented. Our objective is to determine the distribution of electrical resistivity and hence porosity over a volume of ~ 10 km x 10 km x 3 km vertically, in order to constrain the degree of penetration of seawater into the crust and uppermost mantle; to contrast the porosity structure here with volcanically hosted systems away from segment boundaries elsewhere on the MAR; and to constrain models of non-volcanic heat sources and hydrothermal circulation in ultramafic settings at slow spreading ridges. In addition to the CSEM survey we obtained swath bathymetry, gravity and magnetic data; water column physical properties and seafloor current data; and a number of dredge and gravity core samples. We shall present details of the data and samples, together with our preliminary analysis of the results.

Sinha, M. C.; Santos, F.; Dzhatieva, Z.; Dias, A.; Marques, A. F.; Silva, N.; de Nijs, I.

2005-12-01

186

The Impact of Early Amygdala Damage on Juvenile Rhesus Macaque Social Behavior  

PubMed Central

The present experiments continue a longitudinal study of rhesus macaque social behavior following bilateral neonatal ibotenic acid lesions of the amygdala or hippocampus, or sham operations. Juvenile animals (approximately 1.5- 2.5 years of age) were tested in four different social contexts—alone, while interacting with one familiar peer, while interacting with one unfamiliar peer, and in their permanent social groups. During infancy, the amygdala-lesioned animals displayed more interest in conspecifics (indexed by increased affiliative signaling) and paradoxically demonstrated more submission or fear (Bauman, Lavenex, Mason, Capitanio, & Amaral, 2004a, this journal). When these animals were assessed as juveniles, differences were less striking. Amygdala-lesioned animals generated fewer aggressive and affiliative signals (e.g., vocalizations, facial displays) and spent less time in social interactions with familiar peers. When animals were observed alone or with an unfamiliar peer, amygdala-lesioned, compared with other subjects, spent more time being inactive and physically explored the environment less. Despite the subtle, lesion-based differences in the frequency and duration of specific social behaviors, there were lesion-based differences in the organization of behavior such that lesion groups could be identified based on the patterning of social behaviors in a discriminant function analysis. The findings indicate that, although overall frequencies of many of the observed behaviors do not differ between groups, the general patterning of social behavior may distinguish the amygdala-lesioned animals. PMID:24047387

Bliss-Moreau, Eliza; Moadab, Gilda; Bauman, Melissa D.; Amaral, David G.

2015-01-01

187

Momentum space saturation model for deep inelastic scattering and single inclusive hadron production  

NASA Astrophysics Data System (ADS)

We show how the Santana Amaral-Gay Ducati-Betemps-Soyez (AGBS) model, originally developed for deep inelastic scattering applied to HERA data on the proton structure function, can also describe the RHIC data on single inclusive hadron yield for d+Au and p+p collisions through a new simultaneous fit. The single inclusive hadron production is modeled through the color glass condensate, which uses the quark (and gluon) condensate amplitudes in momentum space. The AGBS model is also a momentum space model based on the asymptotic solutions of the Balitsky-Kovchegov equation, although a different definition of the Fourier transform is used. This aspect is overcome, and a description entirely in transverse momentum of both processes arises for the first time. The small difference between the simultaneous fit and the one for HERA data alone suggests that the AGBS model describes very well both kinds of processes and thus emerges as a good tool to investigate the inclusive hadron production data. We use this model for predictions at LHC energies, which agrees very well with available experimental data.

Basso, E. A. F.; Gay Ducati, M. B.; de Oliveira, E. G.

2011-08-01

188

A photoelastic study of the stresses at the junction of the curved and straight portions of a curved-end cantilever beam  

E-print Network

minimum stress I~1 Distance from center of curvature to any point on the beam [L] Thickness of the beam [I] Distance from A to any point on A3 [L] Zsoelinic parameter [dimensionless] Tangentia1 norma1 stress[~] Radial normal stress(~i L?J Shear...' . In order to use the previous equations, curves were drawn for the values of n and Q across line AB and across two lines a distance of c x on either side of line JLB, Curves of the shear stresses across these sections were also drawn, as well as a curve...

Crump, Glendon Rowe

1961-01-01

189

78 SG/12/CS4 B Original: Inglés  

E-print Network

La Comisión de Normas Sanitarias para los Animales Acuáticos de la OIE (a continuación denominada Comisión para los Animales Acuáticos) se reunió en la sede de la OIE del 22 al 26 de febrero de 2010. La lista de los participantes figura en el Anexo I, y el temario aprobado, en el Anexo II. La Dra. Sarah Kahn, Jefa del Departamento de Comercio Internacional, dio la bienvenida a los miembros en nombre del Dr. Bernard Vallat, Director General, y les agradeció por el trabajo que realizan en apoyo de la OIE. La Comisión para los Animales Acuáticos agradeció a los siguientes Miembros por enviar sus comentarios por escrito:

Febrero De; Informe De; La Reunión; De La; Comisión De; Normas Sanitarias; Para Los; Animales Acuáticos; De La Oie

2010-01-01

190

A Teacher's Perspective: What Is Culture?  

NSDL National Science Digital Library

In her chapter, "What Is Culture?," page 89, Norma Gonz�lez explains how the concept of culture has evolved historically and how it has affected education over time. As anthropologists continue to define culture in more dynamic ways, educators are encouraged to look beyond the rigid categories typically used to classify students--especially students from poor families and who speak a first language other than English--and see students as participants in many "cultural" communities. Ana Vaisenstein, a former first-grade teacher in a two-way bilingual school, shares her perspective.

Ana Vaisenstein, Sumner School, Boston Public Schools

2008-01-01

191

Political dreams, practical boundaries: the case of the Nursing Minimum Data Set, 1983-1990.  

PubMed

The initial development of the Nursing Minimum Data Set (NMDS) was analyzed based on archival material from Harriet Werley and Norma Lang, two nurses involved with the project, and American Nurses Association materials. The process of identifying information to be included in the NMDS was contentious. Individual nurses argued on behalf of particular data because of a strong belief in how nursing practice (through information collection) should be structured. Little attention was paid to existing practice conditions that would ultimately determine whether the NMDS would be used. PMID:21329148

Hobbs, Jennifer

2011-01-01

192

TEAM Connections: Four Teachers' Journeys Into Action Research  

NSDL National Science Digital Library

Judy Fix, Norma Fletcher, Dianne Johnson, and Janet Siulc--a group of teachers in the Buffalo Public School District--wondered what they could do that would go beyond talk and speculation about their teaching practices. They wanted to take action in their classrooms. This chapter is about the journey upon which the four teachers embarked as they hoped to find out if what they thought they were doing was really making a difference in their students' learning. It provides only a brief glimpse into the many places that their action-research journey led them.

Dianne Johnson

2007-01-01

193

Ultima actualizacao: 18/Nov/2003 Instituto Superior Tecnico  

E-print Network

anti­simâ??etrica O produto interno usual de dois vectores v = (x 1 , . . . , x n ) e w = (y 1 , . . . , y n ) em R n â??e o nâ??umero real v · w = x 1 y 1 + x 2 y 2 + . . . + x n y n = v t w . v e w dizem­se ortogonais (ou perpendiculares), e representa­se v # w, se v · w = 0. A norma (ou comprimento) de v â??e o n

Cannas da Silva, Ana

194

Ultima actualizac~ao: 18/Nov/2003 Instituto Superior Tecnico  

E-print Network

anti-sim´etrica O produto interno usual de dois vectores v = (x1, . . . , xn) e w = (y1, . . . , yn) em Rn ´e o n´umero real v · w = x1y1 + x2y2 + . . . + xnyn = vt w . v e w dizem-se ortogonais (ou perpendiculares), e representa-se v w, se v · w = 0. A norma (ou comprimento) de v ´e o n´umero n~ao negativo |v

Cannas da Silva, Ana

195

Late Cryogenian-Ediacaran history of the Arabian-Nubian Shield: A review of depositional, plutonic, structural, and tectonic events in the closing stages of the northern East African Orogen  

NASA Astrophysics Data System (ADS)

During the late Cryogenian-Ediacaran (650-542 Ma), the Arabian-Nubian Shield (ANS) underwent final assembly and accretion to the Saharan Metacraton concurrent with the assembly of eastern and western Gondwana. At the end of the Precambrian it lay at one end of the East African Orogen, with its northern margin (present coordinates) forming a low-relief stable shelf facing an open ocean; to the south the ANS transitioned into the Mozambique Belt. The geologic history of the ANS during this period provides insight into the closing developmental stages of one of the world's largest accretionary orogens. Following a 680-640 Ma orogenic event reflecting amalgamation of a core grouping of island-arc terranes (the proto-Arabian-Nubian Shield; pANS), the region underwent extensive exhumation, erosion, and subsidence. Depositional basins formed in the northern and eastern pANS, with those in the east below sea level and connected to an ocean. Periodic basin closure and formation of new basins in other parts of the ANS followed. Many basins were filled by terrestrial, molasse-type sediments interfingering with subordinate to predominant amounts of volcanic rocks. Magmatism was extensive throughout the period, initially characterized by tonalite-trondhjemite-granodiorite (TTG) and granite (monzogranite, syenogranite), but also characterized, from ˜610 Ma on, by increasing amounts of alkali-feldspar granite and alkali granite. The plutons are largely undeformed, except where cut by brittle-ductile shear zones. The magma sources of the late Cryogenian-Ediacaran granitoids were dominated by juvenile crust and(or) depleted mantle and magmas mostly originated in anorogenic, post-collisional, commonly extensional, settings. They were derived by melting and fractionation of anhydrous high-grade metamorphosed lower crust, mafic- to intermediate calc-alkaline crust, and(or) subduction-modified mantle wedges associated with slab break-off or delamination. By ˜630 Ma, the region was affected by oblique (transpressional) convergence of continental blocks that formed eastern and western Gondwana—the pANS was approaching the Saharan Metacraton; north-trending shear and shortening zones developed in the southern ANS; and northwest-trending strike-slip shear zones of the Najd fault system dominated farther north. In the northwestern ANS, convergence and Najd transpression buckled the crust causing structural highs with domes of gneissic infracrust overlain by supracrust composed of ophiolitic and volcanosedimentary assemblages dating from the Tonian-middle Cryogenian period of island-arc activity. The supracrust was extensively translated to the northwest above a high-strain zone. Extension and tectonic escape augmented exhumation of the gneissic infracrust particularly between ˜620-580 Ma. In the northeastern ANS, linear belts of gneiss formed from reworked older intrusive bodies or syntectonic intrusions that were emplaced along Najd faults. By ˜620 Ma a marine basin on the eastern margin of the pANS (present coordinates) was beginning to close. A thick sedimentary assemblage (Abt formation) in this basin underwent metamorphism and folding, and subduction-related magmatism and volcanism farther into this basin (Al Amar arc; >690-615 Ma) was coming to an end. Amalgamation of the Abt formation, Al Amar arc, and the pANS occurred between ˜620 and ˜605 Ma, and terminal collision between the pANS and the Saharan Metacraton was complete by ˜580 Ma. At this time, the ANS was fully assembled. Granite magmatism continued until ˜565-560 Ma and orogeny ceased by ˜550 Ma. During these terminal events, the region underwent strong chemical weathering and became a vast low-relief surface on which Lower Paleozoic sandstone was eventually deposited.

Johnson, P. R.; Andresen, A.; Collins, A. S.; Fowler, A. R.; Fritz, H.; Ghebreab, W.; Kusky, T.; Stern, R. J.

2011-10-01

196

Mineral deposits in western Saudi Arabia; a preliminary report  

USGS Publications Warehouse

Mineral deposits in Saudi Arabia include a variety of deposits which were formed in many geologic environments. These include magmatic and late magmatic deposits in igneous masses, contact metamorphic deposits along the margins of igneous bodies, and stratiform sulfide deposits and veins. Notable deposits of sedimentary origin include deposits of iron oxides and phosphate. Strata-bound massive sulfide deposits containing copper, zinc, and nickel sulfides associated with pyrite and pyrrhotite in complexly deformed volcanic rocks in Saudi Arabia have been the subject of controversy. They are considered by some geologists to be of syngenetic or volcanogenic origin, and by others to be epigenetic. The principal mineral deposits in western Saudi Arabia are localized in mineral belts within tectonic zones that trend northerly, northeasterly, and northwesterly. These belts contain the exploration target areas most promising for future exploration. Noteworthy among these are: 1) the northerly-trending Bidah copper-zinc belt; 2) the Sayid copper-zinc zone; 3) the northwest-trending Nuqrah copper zinc-silver belt; and 4) the north-northwesterly-trending Al Amar belt. Gold and silver deposits are mainly localized in north-trending structural features of the Hijaz geotectonic cycle and northwest Najd trends. Saudi Arabian metal deposits known thus far contain reserves in the 2 billion dollar range. Further exploration should result in discoveries that could significantly increase this amount; Saudi Arabia may well have workable metallic and nonmetallic mineral resources for industrial developments in many parts of the Kingdom. In order to effectively carry on a search for new mineral deposits, the belts should be mapped in detail, with emphasis on the delineation of stratigraphic and structural features that control metallization. In addition, geochemical and geophysical studies should be made of promising areas to outline exploration targets. These targets could then be systematically explored.

Roberts, Ralph Jackson; Greenwood, W.R.; Worl, R.G.; Dodge, F.C.; Kiilsgaard, T.H.

1975-01-01

197

Optical Magnetometry  

NASA Astrophysics Data System (ADS)

Part I. Principles and Techniques: 1. General principles and characteristics of optical magnetometers D. F. Jackson Kimball, E. B. Alexandrov and D. Budker; 2. Quantum noise in atomic magnetometers M. V. Romalis; 3. Quantum noise, squeezing, and entanglement in radio-frequency optical magnetometers K. Jensen and E. S. Polzik; 4. Mx and Mz magnetometers E. B. Alexandrov and A. K. Vershovskiy; 5. Spin-exchange-relaxation-free (serf) magnetometers I. Savukov and S. J. Seltzer; 6. Optical magnetometry with modulated light D. F. Jackson Kimball, S. Pustelny, V. V. Yashchuk and D. Budker; 7. Microfabricated atomic magnetometers S. Knappe and J. Kitching; 8. Optical magnetometry with nitrogen-vacancy centers in diamond V. M. Acosta, D. Budker, P. R. Hemmer, J. R. Maze and R. L. Walsworth; 9. Magnetometry with cold atoms W. Gawlik and J. M. Higbie; 10. Helium magnetometers R. E. Slocum, D. D. McGregor and A. W. Brown; 11. Surface coatings for atomic magnetometry S. J. Seltzer, M.-A. Bouchiat and M. V. Balabas; 12. Magnetic shielding V. V. Yashchuk, S.-K. Lee and E. Paperno; Part II. Applications: 13. Remote detection magnetometry S. M. Rochester, J. M. Higbie, B. Patton, D. Budker, R. Holzlöhner and D. Bonaccini Calia; 14. Detection of nuclear magnetic resonance with atomic magnetometers M. P. Ledbetter, I. Savukov, S. J. Seltzer and D. Budker; 15. Space magnetometry B. Patton, A. W. Brown, R. E. Slocum and E. J. Smith; 16. Detection of biomagnetic fields A. Ben-Amar Baranga, T. G. Walker and R. T. Wakai; 17. Geophysical applications M. D. Prouty, R. Johnson, I. Hrvoic and A. K. Vershovskiy; Part III. Broader Impact: 18. Tests of fundamental physics with optical magnetometers D. F. Jackson Kimball, S. K. Lamoreaux and T. E. Chupp; 19. Nuclear magnetic resonance gyroscopes E. A. Donley and J. Kitching; 20. Commercial magnetometers and their application D. C. Hovde, M. D. Prouty, I. Hrvoic and R. E. Slocum; Index.

Budker, Dmitry; Kimball, Derek F. Jackson

2013-03-01

198

Considerations on Terrestrial Iron Depositing Analogs to Earliest Mars  

NASA Technical Reports Server (NTRS)

Iron oxide and hydroxide minerals, including hematite, can mineralize and preservemicrofossils and physical biomarkers (Allen at al., 2004). Preserved remnants of phototrophic microorganisms are recognized as biosignatures of past life on Earth (Schopf, 2006). To date, two types of surface iron depositing environments have been studied as analogs to possible habitable environments on earliest Mars: the highly acidified Rio Tinto River (Iberian Belt, Spain) [Gomez Ortis et al., 2007], and the nearneutral iron depositing Chocolate Pots Hot Spring (Yellowstone National Park, US) [Parenteau at al., 2005]. While phototrophs in the Rio Tinto are only represented by eukaryotic algae (Amaral Zettler et all., 2002), Chocolate Pots is mainly populated with cyanobacteria (Pierson et all., 2000; Brown et all., 2007). Which of these environments is the closer analog to a potentially habitable early Mars? Paleobiological data, combined with recent "tree of life" interpretations, suggest that phototrophic eukaryotes evolved not earlier than 2.5 - 2.8 b.y. after Earth s accretion (4.6 b.y.), while cyanobacteria and /or their iron-tolerant predecessors evolved between 1 - 1.5 b.y. after accretion (Brown et al., 2007). Lindsay and Brasier (2002) postulated that microbial life on Mars surface could have lasted no more than 1-1.5 b.y. after Mars accretion (also 4.6 b.y.). Recent multispectral mapping of Mars suggests that near-neutral wet environments prevailed at approximately this time (Bibring, et al., 2006). Thus, near-neutral iron depositing hot springs such as Chocolate Pots Hot Spring seem to be the more likely habitable analogs for earliest Mars.

Brown, Igor I.; Allen, Carlton C.; Sarkisova, S. A.; Garrison, D. H.; McKay, D. S.

2007-01-01

199

Microstructural finite strain analysis and 40Ar/39Ar evidence for the origin of the Mizil gneiss dome, eastern Arabian Shield, Saudi Arabia  

NASA Astrophysics Data System (ADS)

The Mizil antiform is a gneiss-cored culmination situated near the northern end of the Ar Rayn island arc terrane, which is the easternmost exposed tectonic unit of the Arabian Shield. This domal structure has a mantle of metamorphosed volcanosedimentary rocks belonging to the Al-Amar Group, and an igneous interior made up of foliated granodiorite-tonalite with adakitic affinity. The gneissic core has a SHRIMP U-Pb zircon age of 689 ± 10 Ma making it the oldest rock unit in the Ar Rayn terrane. An adakite diapir, formed by the melting of the subducted crust of a young marginal basin, and rising through the volcanosedimentary succession of the Ar Rayn island arc is thought to have caused the observed doming. Relatively uniform strain throughout the dome combined with strong vertical shortening and the roughly radial pattern of stretching lineation is consistent with diapirism; the absence of strain localization rules out detachment faulting as a causative mechanism. Amphibolites from the metamorphic envelope have an 40Ar/39Ar age of 615 ± 2 Ma; the age gap between core and cover is thought to reflect the resetting of metamorphic ages during the final suturing event, a phenomenon that is often observed throughout the eastern shield. Aeromagnetic anomalies beneath the Phanerozoic sedimentary cover indicate the presence of a collage of accreted terranes east of the Ar Rayn terrane that were probably amalgamated onto the Arabian margin during the latest stages of the closure of the Mozambique ocean; culminant orogeny is believed to have taken place between 620 and 600 Ma as these terrane collided with a major continental mass to the east referred to here as the eastern Arabian block (EAB). The Mizil gneiss dome is therefore considered to have formed in a convergent contractional setting rather than being the outcome of extensional post-orogenic collapse.

Al-Saleh, Ahmad M.; Kassem, Osama M. K.

2012-07-01

200

Structure, energetic and phase transition of small nickel-palladium heterogeneous clusters  

NASA Astrophysics Data System (ADS)

Molecular dynamics simulation (MD) with Sutton-Chen potential for palladium-palladium, nickel-nickel and palladium-nickel interactions has been used to generate the minimum energy structures and to study the thermodynamic and dynamic properties of mixed transition metal cluster motifs of Ni n Pd(13- n) for n ? 13. Thirteen particle icosahedral clusters of neat palladium and nickel atoms were first reproduced accordingly with the results in literature. Then in the palladium icosahedra, each palladium atom has been successively replaced by nickel atom. Calculation is repeated for both palladium-centered and nickel-centered clusters. It is found that the nickel-centered clusters are more stable than the palladium-centered clusters and cohesive energy increases along the palladium end to nickel end. Phase transition of each cluster from one end-species to the other end-species is studied by means of caloric curve, root mean square bond fluctuation and heat capacity. Trend in variation of melting temperature is opposite to the energy trend. Palladium-centered cluster shows a premelting at low temperature due to the solid-solid structural transition. Species-centric order parameters developed by Hewage and Amar is used to understand the dynamic behavior in the solid-solid transition of palladium-centered cluster to more stable nickel-centered cluster (premelting). This species-centric order parameter calculation further confirmed the stability of nickel-centered species over those of palladium-centered species and solid-solid structural transition at low temperature.

Hewage, Jinasena W.

2014-06-01

201

Food, Environment, Engineering and Life Sciences Program (Invited)  

NASA Astrophysics Data System (ADS)

Food, Environment, Engineering and Life Sciences Program Nadia Amar, Wiella Burgess, Rabi H. Mohtar, and Dale Whitaker Purdue University Correspondence: mohtar@purdue.edu FEELS, the Food, Environment, Engineering and Life Sciences Program is a grant of the National Science Foundation for the College of Agriculture at Purdue University. FEELS’ mission is to recruit, retain, and prepare high-achieving students with financial difficulties to pursue STEM (Science, Technology, Engineering, and Mathematics) careers. FEELS achieves its goals offering a scholarship of up to 10,000 per student each year, academic, research and industrial mentors, seminars, study tables, social and cultural activities, study abroad and community service projects. In year one, nine low-income, first generation and/or ethnic minority students joined the FEELS program. All 9 FEELS fellows were retained in Purdue’s College of Agriculture (100%) with 7 of 9 (77.7%) continuing to pursue STEM majors. FEELS fellows achieved an average GPA in their first year of 3.05, compared to the average GPA of 2.54 for low-income non- FEELS students in the College of Agriculture. A new cohort of 10 students joined the program in August 2009. FEELS fellows received total scholarships of nearly 50,000 for the 2008-2009 academic year. These scholarships were combined with a holistic program that included the following key elements: FEELS Freshman Seminars I and II, 2 study tables per week, integration activities and frequent meetings with FEELS academic mentors and directors. Formative assessments of all FEELS activities were used to enhance the first year curriculum for the second cohort. Cohort 1 will continue into their second year where the focus will be on undergraduate research. More on FEELS programs and activities: www.purdue.edu/feels.

Mohtar, R. H.; Whittaker, A.; Amar, N.; Burgess, W.

2009-12-01

202

Pesticide exposure and cancer among rural workers from Bariri, Sao Paulo State, Brazil.  

PubMed

This article reports an environmental health study on risk identification. It discusses risk factors linked to rural work and pesticide contact in a restricted geographic area and shows the necessity of improving rural workers' health in the central part of Sao Paulo State. The municipality of Bariri, which is the case studied in this research, typifies this agriculturally based region. The study focuses on environmental problems engendered by modern agriculture that may have human-health repercussions such as cancer, as indicated by hard statistical association on an extended cause-effect time scale. For specific cases, the research used a database containing records of Amaral Carvalho Hospital, located in the city of Jau and a highly respected regional reference unit for over 85 years as one of the best in the Brazilian public health system for treating cancer. Statistics for age and gender were analyzed; relative risk was calculated for a group of cases registered from 2000 to 2002, as well as for a randomly selected control group from the same hospital. A map indicating the residences of cases (68) and non-cases (60) was made by geoprocessing techniques. For the period of time and the group studied, the authors concluded that the cancers of the skin and digestive system were the most prevalent. Bariri presented 24 cases representing all cancer types for each group of 10,000 citizens. The study indicated an almost two times higher probability of cancer development among rural workers, with a calculated relative risk between those exposed (agriculture workers) and the non-exposed (other occupations) of 1.6. No patterns of geographical distribution of cancer in that time period were recorded among rural workers of Bariri. However, the higher number of positive occurrences in the southwestern outskirts of the city indicated an area that must be prioritized in distributing environmental health information and conducting preventive education campaigns. PMID:15910970

de Brito Sá Stoppelli, Illona Maria; Crestana, Sílvio

2005-07-01

203

Hard X-ray Point Sources Detected in the NuSTAR Galactic Plane Survey  

NASA Astrophysics Data System (ADS)

The Nuclear Spectroscopic Telescope Array (NuSTAR) has surveyed the Galactic Center and Norma region with total exposure of approximately 2 Msec and 50 pointings. Hard X-ray spectroscopy with NuSTAR is a powerful tool to identify sources previously discovered by Chandra, and thus perform comparative population studies in the Galactic Center and Norma region. The NuSTAR survey, with a depth ranging from 20 to 40 ksec, detected dozens of point source above 10 keV including three known X-ray transients (GRS 1741-2853, AXJ1745.6-2901 and CXOGC J174540.0-29005) during their outbursts in 2013. Some of the NuSTAR point sources exhibit remarkably hard X-ray spectra extending beyond 40 keV, indicating that they are either hot intermediate polars with temperatures greater than 50 keV or X-ray binaries with either a neutron star or black hole. We will present our spectral and timing analysis of the NuSTAR sources as well as results of IR counterpart searches.

Hailey, Chuck

204

THE EDGE OF THE YOUNG GALACTIC DISK  

SciTech Connect

In this work, we report and discuss the detection of two distant diffuse stellar groups in the third Galactic quadrant. They are composed of young stars, with spectral types ranging from late O to late B, and lie at galactocentric distances between 15 and 20 kpc. These groups are located in the area of two cataloged open clusters (VdB-Hagen 04 and Ruprecht 30), projected toward the Vela-Puppis constellations, and within the core of the Canis Major overdensity. Their reddening and distances have been estimated by analyzing their color-color and color-magnitude diagrams, derived from deep UBV photometry. The existence of young star aggregates at such extreme distances from the Galactic center challenges the commonly accepted scenario in which the Galactic disk has a sharp cutoff at about 14 kpc from the Galactic center and indicates that it extends to much greater distances (as also supported by the recent detection of CO molecular complexes well beyond this distance). While the groups we find in the area of Ruprecht 30 are compatible with the Orion and Norma-Cygnus spiral arms, respectively, the distant group we identify in the region of VdB-Hagen 04 lies in the external regions of the Norma-Cygnus arm, at a galactocentric distance ({approx}20 kpc) where no young stars have been detected so far in the optical.

Carraro, Giovanni [ESO, Alonso de Cordova 3107, 19100 Santiago de Chile (Chile); Vazquez, Ruben A. [Facultad de Ciencias Astronomicas y Geofisicas (UNLP), Instituto de Astrofisica de La Plata (CONICET, UNLP), Paseo del Bosque s/n, La Plata (Argentina); Costa, Edgardo [Departamento de AstronomIa, Universidad de Chile, Casilla 36-D, Santiago (Chile); Perren, Gabriel [Instituto de Fisica de Rosario, IFIR (CONICET-UNR), Parque Urquiza, 2000 Rosario (Argentina); Moitinho, Andre [SIM/IDL, Faculdade de Ciencias da Universidade de Lisboa, Ed. C8, Campo Grande, 1749-016 Lisboa (Portugal)

2010-08-01

205

The Edge of the Young Galactic Disk  

NASA Astrophysics Data System (ADS)

In this work, we report and discuss the detection of two distant diffuse stellar groups in the third Galactic quadrant. They are composed of young stars, with spectral types ranging from late O to late B, and lie at galactocentric distances between 15 and 20 kpc. These groups are located in the area of two cataloged open clusters (VdB-Hagen 04 and Ruprecht 30), projected toward the Vela-Puppis constellations, and within the core of the Canis Major overdensity. Their reddening and distances have been estimated by analyzing their color-color and color-magnitude diagrams, derived from deep UBV photometry. The existence of young star aggregates at such extreme distances from the Galactic center challenges the commonly accepted scenario in which the Galactic disk has a sharp cutoff at about 14 kpc from the Galactic center and indicates that it extends to much greater distances (as also supported by the recent detection of CO molecular complexes well beyond this distance). While the groups we find in the area of Ruprecht 30 are compatible with the Orion and Norma-Cygnus spiral arms, respectively, the distant group we identify in the region of VdB-Hagen 04 lies in the external regions of the Norma-Cygnus arm, at a galactocentric distance (~20 kpc) where no young stars have been detected so far in the optical.

Carraro, Giovanni; Vázquez, Ruben A.; Costa, Edgardo; Perren, Gabriel; Moitinho, André

2010-08-01

206

A multiscale hybrid algorithm for fluctuating hydrodynamics  

NASA Astrophysics Data System (ADS)

We develop an algorithmic hybrid for simulating multiscale fluid flow with microscopic fluctuations. Random fluctuations occur in fluids at microscopic scales, and these microscopic fluctuations can lead to macroscopic system effects. For example, in the Rayleigh-Taylor problem, where a relatively heavy gas sits on top of a relatively light gas, spontaneous microscopic fluctuation at the interface of the gases leads to turbulent mixing. Given near-term computational power, the physical and temporal domain on which these systems can be studied using traditional particle simulations is extremely limited. Therefore, we seek algorithmic solutions to increase the effective computing power available to study such problems. We develop an explicit numerical solver for the Landau-Lifshitz Navier-Stokes (LLNS) equations, which incorporate thermal fluctuations into macroscopic hydrodynamics via stochastic; fluxes. A major goal is to correctly preserve the influence of the microscopic fluctuations on the behavior of the system. We show that several classical approaches fail to accurately reproduce fluctuations in energy or density, and we introduce a customized conservative centered scheme with a third-order Runge-Kutta temporal integrator that is specficially designed to produce correct fluctuations in all conserved quantities. We then use the adaptive mesh and algorithm refinement (AMAR) paradigm to create a multiscale hybrid method by coupling our LLNS solver with the direct simulation Monte Carlo (DSMC) particle method. We present numerical tests of systems in and out of equilibrium, including time-dependent systems, and demonstrate dynamic adaptive refinement. Mean system behavior and second moment statistics of our simulations match theoretical values and benchmarks well. We find that particular attention should be paid to the spectrum of the flux at the interface between the particle and continuum methods, specifically at non-hydrodynamic time scales. As an extension of the basic hybrid method, we consider the dynamics of a binary mixture of gases. Benchmark test problems, including a system under concentration gradient, match theory and molecular simulation well. We find that to study mixtures of gases with unequal masses, at equilibrium it may be reasonable to neglect the Soret effect; however, inclusion of the baro-diffusion effect is important.

Williams, Sarah Anne

207

High Temperature Hydrothermal Components in the Sediment Cover of the Saldanha Hydrothermal Field  

NASA Astrophysics Data System (ADS)

The Saldanha hydrothermal field is located at a non-transform offset (NTO5), between the FAMOUS and AMAR segments on the Mid-Atlantic Ridge (N36° 34'; W33° 26'). This field was discovered in 1998 during the Saldanha cruise (FCT, Portugal and IFREMER, France) and was revisited in 2001 during the Seahma cruise (FCT, Portugal) and in 2004 during the CD167 cruise (NOC, UK and FCT, Portugal). It is a serpentinite-hosted hydrothermal field and in situ observations revealed that hydrothermal vents are scarce and disseminated along the ocean floor over an area of approximately 400m2. Weakly venting fluids discharge through centimeter-sized orifices. Maximum fluid temperatures of 9° C were measured with the Victor ROV in 2001. Surface sediments have been collected from the Saldanha hydrothermal field in 1998, 2001 and 2004 and differences concerning mineralogy and geochemistry were recorded between these sediments. Mineralogy, whole sediment geochemistry and isotope ((? 13C, ? 18O, Pb and Nd) data suggest geochemical variations in hydrothermal activity in this system. Hydrothermal activity is more strongly recorded in sediments collected in 2004, which are richer in sulfide mineralization and in hydrothermally- derived elements such as Cu, Zn, Fe, Co, Ni and S. In these sediments, rare earth elements (REE) patterns are characteristically derived from vent fluids, with enrichment in light REE and a pronounced positive Eu anomaly. The seawater-derived REE components in these sediments are low, as revealed by a small negative Ce anomaly. Lead isotopic ratios are typically less radiogenic in the youngest sediments when compared with the ones recorded in 1998 and 2001 sediments, demonstrating a negligible contribution of Pb from pelagic sediments. This is in agreement with neodymium isotope analyses indicating a smaller seawater contribution in the 2004 sediments. Oxygen isotope compositions (?18OSMOW=6,59-11,63‰) of hydrothermal calcites present throughout the 2004 sediment core imply much higher temperatures of mineral precipitation (up to 260° C ) than those measured directly at the vent orifices in 2001 (9° C).Hydrothermal minerals are precipitated subsurface, preserving minerals from oxidizing conditions. The high temperature of mineral precipitation suggested by our data requires a significant heat input to this system, raising the question of the heat source of this system and the role of serpentinization processes, as no magmatic heat source has yet been found.

Dias, A.; Frueh-Green, G. L.; Bernasconi, S. M.; Mills, R. A.; Taylor, R. N.; Barriga, F. J.

2006-12-01

208

Two new species and new records of nasal mites of the genus Sternostoma (Acarina: Rhinonyssinae) from birds in Texas.  

PubMed

Two new species and new host and locality records are established for nasal mites of the genus Sternostoma from birds in Texas. Sternostoma tracheacolum Lawrence is reported for the first time from Pipilo fuscus and Pyrrhuloxia sinuata, respectively. Additionally, a new host record for Sternostoma porteri Hyland from Centurus aurifrons and a new locality record for Sternostoma pirangae Pence from Piranga rubra are established. A redescription is provided for Sternostoma augei Amaral from Speotyto cunicularia. Sternostoma crotophagae sp. n. is described from Crotophaga sulcirostris. It differs from the other species of the genus by the heavily sclerotized margins of the anal plate and tiny cribrum, the two small rounded bifuractions of the movable digit of the chelicerae, abscence of dorsal opisthosomal setae (J, Z, and R series), and chaetotaxy of tarsi II, III, and IV which have only 3 ventral club-shaped setae in the distal row (al1, av2, and pl1 with pv1 apparently absent) and 2 club-shaped setae in the more proximal row (al2 and av3 with pv3 modified into a spinelike seta in the more proximal row and al2 and av3 with pv3 modified into a spinelike seta having an enlarged base and pl2 shorter and with a rounded tip). Sternostoma sayornis sp. n. is described from Sayornis nigricans. The new species is most similar to Sternostoma hedonophilum Fain but differs in the absence of enlarged punctate areas around the stigmata, 5 additional pairs of seta on dorsal opisthosoma (Z and R series), absence of gnathosomal and capitular setae, and slight differences in the leg chaetotaxy with al1 and pl1 on tarsi II, III, and IV very long and whip-like and slight differences in the solenidia on and adjacent to the sensorial area of tarsus I. The host-parasite relationships and affinities of the species of Sternostoma from the host family Tyrannidae are briefly discussed and Sternostoma callithrix Fain and Aitken is reduced as a synonym of Sternostoma longisetosa Hyland on the basis of their existing descriptions. PMID:1127568

Pence, D B; Casto, S

1975-04-01

209

A lead isotope study of mineralization in the Saudi Arabian Shield  

USGS Publications Warehouse

New lead isotope data are presented for some late Precambrian and early Paleozoic vein and massive sulfide deposits in the Arabian Shield. Using the Stacey Kramers (1975) model for lead isotope evolution, isochron model ages range between 720 m.y. and 420 m.y. Most of the massive sulfide deposits in the region formed before 680 m.y. ago, during evolution of the shield. Vein type mineralization of higher lead content occurred during the Pan African event about 550 m.y. ago and continued through the Najd period of extensive faulting in the shield that ended about 530 m.y. ago. Late post-tectonic metamorphism may have been responsible for vein deposits that have model ages less than 500 m.y. Alternatively some of these younger model ages may be too low due to the mineralizing fluids acquiring radiogenic lead from appreciably older local crustal rocks at the time of ore formation. The low207Pb/204Pb ratios found for the deposits in the main part of the shield and for those in north-eastern Egypt, indicate that the Arabian craton was formed in an oceanic crustal environment during the late Precambrian. Involvement of older, upper-crustal material in the formation of the ore deposits in this part of the shield is precluded by their low207Pb/204Pb and208Pb/204Pb characteristics. In the eastern part of the shield, east of longitude 44??20???E towards the Al Amar-Idsas fault region, lead data are quite different. They exhibit a linear207Pb/204Pb-206Pb/204Pb relationship together with distinctly higher208Pb/204Pb characteristics. These data imply the existence of lower crustal rocks of early Proterozoic age that apparently have underthrust the shield rocks from the east. If most of the samples we have analyzed from this easterly region were mineralized 530 m.y. ago, then the age of the older continental rocks is 2,100??300 m.y. (2??). The presence of upper crustal rocks, possibly also of early Proterozoic age, is indicated by galena data from Hailan in South Yemen and also from near Muscat in Oman. These data are the first to indicate such old continental material in these regions. ?? 1980 Springer-Verlag.

Stacey, J.S.; Doe, B.R.; Roberts, R.J.; Delevaux, M.H.; Gramlich, J.W.

1980-01-01

210

Evolved Gas Measurements Planned for the Lower Layers of the Gale Crater Mound with the Sample Analysis at Mars Instrument Suite  

NASA Technical Reports Server (NTRS)

The lower mound strata of Gale Crater provide a diverse set of chemical environments for exploration by the varied tools of the Curiosity Rover of the Mars Science Laboratory (MSL) Mission. Orbital imaging and spectroscopy clearly reveal distinct layers of hydrated minerals, sulfates, and clays with abundant evidence of a variety of fluvial processes. The three instruments of the MSL Sample Analysis at aMars (SAM) investigation, the Quadrupole Mass Spectrometer (QMS), the Tunable Laser Spectrometer (TLS), and the Gas Chromatograph (GC) are designed to analyze either atmospheric gases or volatiles thermally evolved or chemically extracted from powdered rock or soil. The presence or absence of organic compounds in these layers is of great interest since such an in situ search for this type of record has not been successfully implemented since the mid-60s Viking GCMS experiments. However, regardless of the outcome of the analysis for organics, the abundance and isotopic composition of thermally evolved inorganic compounds should also provide a rich data set to complement the mineralogical and elemental information provided by other MSL instruments. In addition, these evolved gas analysis (EGA) experiments will help test sedimentary models proposed by Malin and Edgett (2000) and then further developed by Milliken et al (2010) for Gale Crater. In the SAM EGA experiments the evolution temperatures of H2O, CO2, SO2, O2, or other simple compounds as the samples are heated in a helium stream to 1000 C provides information on mineral types and their associations. The isotopic composition of O, H, C, and S can be precisely determined in several evolved compounds and compared with the present day atmosphere. Such SAM results might be able to test mineralogical evidence of changing sedimentary and alteration processes over an extended period of time. For example, Bibring et al (2006) have suggested such a major shift from early nonacidic to later acidic alteration. We will illustrate through a variety of evolved gas experiments implemented under SAM-like gas flow and temperature ramp conditions on terrestrial analog minerals on high fidelity Sam breadboards the type of chemical information we expect SAM to provide.

Mahaffy, Paul; Brunner, Anna; McAdam, Amy; Franz, Heather; Conrad, Pamela; Webster, Chris; Cabane, Michel

2009-01-01

211

Experiencias y repercusión de una formación en ética de investigación  

PubMed Central

El presente artículo tiene como propósito describir los logros y repercusiones de la capacitación en ética de la investigación que brinda el Centro Interdisciplinario de Estudios en Bioética de la Universidad de Chile, sirviendo de estímulo, motivación y orientación a profesionales que requieren conocer y aplicar las normas y el raciocinio conducente a la deliberación de los problemas en esta disciplina. Asimismo, describe cómo este conocimiento genera un efecto multiplicador en aspectos tales como la participación en un comité de ética de la investigación (CEI), organización de cursos y creación y desarrollo de líneas de investigación, que repercuten en publicaciones realizadas con estudiantes de posgrado. Relata además los contenidos y estrategias didácticas que pueden ser empleados en cursos de ética y bioética para estudiantes de estomatología y concluye mencionando la aplicación práctica de esta capacitación en los ámbitos docente, institucional y de investigación. PMID:24482556

Rupaya, Carmen Rosa García

2012-01-01

212

Maser Emission toward the Infrared Dark Cloud G359.94+0.17 Seen in Silhouette against the Galactic Center  

E-print Network

The infrared dark cloud G359.94+0.17 is a conspicuous, opaque cloud, which is seen in silhouette against the Galactic center. We found unexpectedly strong (~50 Jy) maser emission of CH3OH at 44 GHz with additional weak 22 GHz H2O maser and 43 GHz SiO thermal emissions toward this cloud. Detections of these molecular lines indicate that strong star forming activities are proceeding in this cloud, which were not reported previously despite of numerous works toward the Galactic center.The line profiles of the NH3 inversion lines at 23 GHz indicate that G359.94+0.17 is composed of three clouds with V(lsr)= 0, 15 and ~80 km/s overlapped on the line of sight. The maser emission is associated with the 15 km/s cloud, suggesting that it is located at the Norma spiral arm.

Deguchi, S; Shino, N

2011-01-01

213

The effects of environmental factors on certain aspects of the biology of the grass shrimp, Palaemonetes pugio, in the shore zone of the Galveston Bay estuarine system  

E-print Network

10 o 6 ua cs 4 'A II ~ 0 ~ 0 ~ ~ ~ ~ ~ ~ ~ ao ; h' ~ ~ a . 1 ~ 4s Qo ~ ~ ~ eo 0 0 M J J A S 1963 5lGU&& )(onst n and Texas -ccorIls o ', i c norma'. ttnai1nac (Ialreat O I I , rane f or the cciprtat ion r 3, B 19B3 v... Jo. ' li l3 16 -I I . ' S 'I 3 ZS 5 3!? 0 '7. 6 10 3 i 0 7 I c 3&eragc 15 . . '. 16. 6& 1 ~; I; 5 20 1 19, S 2(&. 1 I!&. 2 132 I. . 3 J. . 6 I o 29 9 ( an I 30. 0 to o7 9 (:7 . Col lect t&~n trrps ma lc cluring thc to 13, '. I' i -, ecq&er itur! r...

Wood, Carl Eugene

1965-01-01

214

Advances in the quantification of protein microarrays.  

PubMed

The determination of the protein composition is a challenging task, yet a valuable endeavor. Information that lies within the composition can help predicting pathogenic mechanisms and diseases. Therefore, a mandatory requirement is the accurate quantification. Protein microarrays are a promising alternative to complement mass spectrometry (MS) techniques. Nevertheless, effects in microarray production and assay development may lead to altered signal intensities. Techniques like NormaCurve provide a more robust quantification by taking the immobilized protein content into account. Printing dilution series can be used to construct a non-linear standard curve to estimate the amount of bound IgG, which helps to overrule the detection range of one order of magnitude. Standard protocols based on projects like the 'minimum information about a proteomics experiment' will help to improve quality and overall comparability. PMID:24534748

Pratsch, Katja; Wellhausen, Robert; Seitz, Harald

2014-02-01

215

Conocimientos y autoeficacia asociados a la prevención del VIH y SIDA en mujeres chilenas  

PubMed Central

Resumen Objetivo Evaluar la relación existente entre conocimientos y autoeficacia asociados al VIH/SIDA en mujeres chilenas en desventaja social. Metodología Estudio correlacional, que utiliza la medición basal del estudio “Testeando una intervención en VIH y SIDA en mujeres chilenas”, realizada entre 2006 y 2008, que tiene una muestra de 496 mujeres entre 18 y 49 años residentes en dos comunas de Santiago de Chile. Las participantes respondieron un cuestionario estructurado aplicado por entrevistadoras entrenadas. Este cuestionario incluyó preguntas sobre datos sociodemográficos, escala de conocimientos de conductas de riesgo y autoeficacia, entre otros. Resultados Edad promedio de 32.3±9.1 años, 72.2% vive con su pareja y 42.7% poseen educación media completa. La puntuación media de los conocimientos de la infección por el VIH fue de 8.9±2.5, mientras que para las tres escalas empleadas para medir autoeficacia fueron: “Normas de los pares” =9.8±3.6, “Intención de reducir conductas de riesgo” =12.2±3.6 y “Self Efficacy Form”=20.2±4.7. Los conocimientos tuvieron una correlación positiva débil con la “intención de reducir conductas de riesgo” (r=0.19; p<0.0001) y con la escala “Self Efficacy Form” (r=0.34; p<0.0001), pero no se relacionaron con las “normas de los pares en cuanto a relaciones sexuales seguras” (r=0.13; p=0.78). Conclusión Existe una débil correlación positiva entre el nivel de conocimientos sobre el VIH/SIDA y la autoeficacia en mujeres chilenas en desventaja social. PMID:25284914

Villegas Rodríguez, Natalia; Ferrer Lagunas, Lilian Marcela; Cianelli Acosta, Rosina; Miner, Sarah; Lara Campos, Loreto; Peragallo, Nilda

2014-01-01

216

The Flow-field From Galaxy Groups In 2MASS  

NASA Astrophysics Data System (ADS)

We present the first model of a flow-field in the nearby Universe (cz < 12,000 km/s) constructed from groups of galaxies identified in an all-sky flux-limited survey. The Two Micron All-Sky Redshift Survey (2MRS), upon which the model is based, represents the most complete survey of its class and, with near-IR fluxes, provides the optimal method for tracing baryonic matter in the nearby Universe. Peculiar velocities are reconstructed self-consistently with a density-field based upon groups identified in the 2MRS Ks<11.75 catalog. The model predicts infall toward Virgo, Perseus-Pisces, Hydra-Centaurus, Norma, Coma, Shapley and Hercules, and most notably predicts backside-infall into the Norma Cluster. We discuss the application of the model as a predictor of galaxy distances using only angular position and redshift measurements. By calibrating the model using measured distances to galaxies inside 3000 km/s, we show that, for a randomly-sampled 2MRS galaxy, improvement in the estimated distance over the application of Hubble's law is expected to be 30%, and considerably better in the proximity of clusters. We test the model using distance estimates from the SFI++ sample, and find evidence for improvement over the application of Hubble's law to galaxies inside 4000 km/s, although the performance varies depending on the location of the target. This work has been supported by NSF grant AST 0406906 and the Massachusetts Institute of Technology Bruno Rossi and Whiteman Fellowships.

Crook, Aidan; Huchra, J.; Macri, L.; Masters, K.; Jarrett, T.

2011-01-01

217

Star-forming complexes and the spiral structure of our Galaxy  

NASA Astrophysics Data System (ADS)

We have carried out a multiwavelength study of the plane of our Galaxy in order to establish a star-forming-complex catalogue which is as complete as possible. Features observed include H? , H109alpha , CO, the radio continuum and absorption lines. For each complex we have determined the position, the systemic velocity, the kinematic distance and, when possible, the stellar distance and the corresponding uncertainties. All of these parameters were determined as homogeneously as possible, in particular all the stellar distances have been (re)calculated with the same calibration and the kinematic distances with the same mean Galactic rotation curve. Through the complexes with stellar distance determination, a rotation curve has been fitted. It is in good agreement with the one of Brand & Blitz (1993). We also investigated the residual velocities relative to the circular rotation model. We find that departures exist over large areas of the arms, with different values from one arm to another. From our data and in good agreement with previous studies, the Galactic warp is observed. It does not seem correlated with the departures from circular rotation. Finally, as segment-like features are noted from the complexes' distribution, we tried to find if they are indicative of a larger underlying structure. Then, we attempted to interpret the complexes' distribution in terms of spiral structure by fitting models with two, three and four logarithmic spiral arms. The four-arm model seems more appropriate to represent the grand design of our Galaxy. In this model the Norma arm and the external arm appear as being the two extremities of a single arm called the Norma-Cygnus arm. The new data and fitted model confirm the four-segment model of Georgelin & Georgelin (1976), clarifying the arms' design and extension and doubling their known length. Based on observations collected at the European Southern Observatory. Tables 1 and 3 (table1.ps and table3.txt) are available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/397/133

Russeil, D.

2003-01-01

218

Yakima River Species Interactions Study; Yakima/Klickitat Fisheries Project Monitoring and Evaluation Report 7 of 7, 2003-2004 Annual Report.  

SciTech Connect

This report is intended to satisfy two concurrent needs: (1) provide a contract deliverable from the Washington Department of Fish and Wildlife (WDFW) to the Bonneville Power Administration (BPA), with emphasis on identification of salient results of value to ongoing Yakima/Klickitat Fisheries Project (YKFP) planning, and (2) summarize results of research that have broader scientific relevance. This is the twelfth of a series of progress reports that address species interactions research and supplementation monitoring of fishes in response to supplementation of salmon and steelhead in the upper Yakima River basin (Hindman et al. 1991; McMichael et al. 1992; Pearsons et al. 1993; Pearsons et al. 1994; Pearsons et al. 1996; Pearsons et al. 1998, Pearsons et al. 1999, Pearsons et al. 2001a, Pearsons et al. 2001b, Pearsons et al. 2002, Pearsons et al. 2003). Journal articles and book chapters have also been published from our work (McMichael 1993; Martin et al. 1995; McMichael et al. 1997; McMichael and Pearsons 1998; McMichael et al. 1998; Pearsons and Fritts 1999; McMichael et al. 1999; McMichael et al. 1999; Pearsons and Hopley 1999; Ham and Pearsons 2000; Ham and Pearsons 2001; Amaral et al. 2001; McMichael and Pearsons 2001; Pearsons 2002, Fritts and Pearsons 2004, Pearsons et al. in press, Major et al. in press). This progress report summarizes data collected between January 1, 2003 and December 31, 2003. These data were compared to findings from previous years to identify general trends and make preliminary comparisons. Interactions between fish produced as part of the YKFP, termed target species or stocks, and other species or stocks (non-target taxa) may alter the population status of non-target species or stocks. This may occur through a variety of mechanisms, such as competition, predation, and interbreeding (Pearsons et al. 1994; Busack et al. 1997; Pearsons and Hopley 1999). Furthermore, the success of a supplementation program may be limited by strong ecological interactions such as predation or competition (Busack et al. 1997). Our work has adapted to new information needs as the YKFP has evolved. Initially, our work focused on interactions between anadromous steelhead and resident rainbow trout (for explanation see Pearsons et al. 1993), then interactions between spring chinook salmon and rainbow trout, and recently interactions between spring chinook salmon and highly valued non-target taxa (NTT; e.g., bull trout); and interactions between strong interactor taxa (e.g., those that may strongly influence the abundance of spring chinook salmon; e.g., smallmouth bass) and spring chinook salmon. The change in emphasis to spring chinook salmon has largely been influenced by the shift in the target species planned for supplementation (Bonneville Power Administration et al. 1996; Fast and Craig 1997). Originally, steelhead and spring chinook salmon were proposed to be supplemented simultaneously (Clune and Dauble 1991). However, due in part to the uncertainties associated with interactions between steelhead and rainbow trout, spring chinook and coho salmon were supplemented before steelhead. This redirection in the species to be supplemented has prompted us to prioritize interactions between spring chinook and rainbow trout, while beginning to investigate other ecological interactions of concern. Prefacility monitoring of variables such as rainbow trout density, distribution, and size structure was continued and monitoring of other NTT was initiated in 1997. This report is organized into three chapters that represent major topics associated with monitoring stewardship, utilization, and strong interactor taxa. Chapter 1 reports the results of non-target taxa monitoring after the fifth release of hatchery salmon smolts in the upper Yakima River basin. Chapter 2 describes our tributary sampling methodology for monitoring the status of tributary NTT. Chapter 3 describes predation on juvenile salmonids by smallmouth bass and channel catfish in the lower Yakima River. The chapters in this report are in various stages of d

Pearsons, Todd N.; Fritts, Anthony L.; Temple, Gabriel M. (Washington Department of Fish and Wildlife, Olympia, WA)

2004-05-01

219

List of Participants  

NASA Astrophysics Data System (ADS)

Mohab Abou ZeidInstitut des Hautes Études Scientifiques, Bures-sur-Yvette Ido AdamMax-Planck-Institut für Gravitationsphysik (AEI), Potsdam Henrik AdorfLeibniz Universität Hannover Mohammad Ali-AkbariIPM, Tehran Antonio Amariti Università di Milano-Bicocca Nicola Ambrosetti Université de Neuchâtel Martin Ammon Max-Planck-Institut für Physik, München Christopher AndreyÉcole Polytechnique Fédérale de Lausanne (EPFL) Laura AndrianopoliPolitecnico di Torino David AndriotLPTHE, Université UPMC Paris VI Carlo Angelantonj Università di Torino Pantelis ApostolopoulosUniversitat de les Illes Balears, Palma Gleb ArutyunovInstitute for Theoretical Physics, Utrecht University Davide AstolfiUniversità di Perugia Spyros AvramisUniversité de Neuchâtel Mirela BabalicChalmers University, Göteborg Foday BahDigicom Ioannis Bakas University of Patras Igor BandosUniversidad de Valencia Jose L F BarbonIFTE UAM/CSIC Madrid Till BargheerMax-Planck-Institut für Gravitationsphysik (AEI), Potsdam Marco Baumgartl Eidgenössische Technische Hochschule (ETH), Zürich James BedfordImperial College London Raphael BenichouLaboratoire de Physique Théorique, École Normale Supérieure, Paris Francesco Benini SISSA, Trieste Eric Bergshoeff Centre for Theoretical Physics, University of Groningen Alice BernamontiVrije Universiteit, Brussel Julia BernardLaboratoire de Physique Théorique, École Normale Supérieure, Paris Adel Bilal Laboratoire de Physique Théorique, École Normale Supérieure, Paris Marco Billo' Università di Torino Matthias Blau Université de Neuchâtel Guillaume BossardAlbert-Einstein-Institut, Golm Leonardo BriziÉcole Polytechnique Fédérale de Lausanne (EPFL) Johannes BroedelLeibniz Universität Hannover (AEI) Tom BrownQueen Mary, University of London Ilka BrunnerEidgenössische Technische Hochschule (ETH), Zürich Erling BrynjolfssonUniversity of Iceland Dmitri BykovSteklov Institute, Moscow and Trinity College, Dublin Joan CampsUniversitat de Barcelona Davide CassaniLaboratoire de Physique Théorique, École Normale Supérieure, Paris Alejandra CastroUniversity of Michigan Claudio Caviezel Max-Planck-Institut für Physik, München Alessio Celi Universitat de Barcelona Anna Ceresole Istituto Nazionale di Fisica Nucleare, Università di Torino Athanasios ChatzistavrakidisNational Technical University of Athens Wissam ChemissanyCentre for Theoretical Physics, University of Groningen Eugen-Mihaita CioroianuUniversity of Craiova Andres CollinucciTechnische Universität Wien Paul CookUniversità di Roma, Tor Vergata Lorenzo CornalbaUniversità di Milano-Bicocca Aldo CotroneKatholieke Universiteit Leuven Ben Craps Vrije Universiteit, Brussel Stefano Cremonesi SISSA, Trieste Riccardo D'AuriaPolitecnico di Torino Gianguido Dall'AgataUniversity of Padova Jose A de AzcarragaUniversidad de Valencia Jan de BoerInstituut voor Theoretische Fysica, Universiteit van Amsterdam Sophie de BuylInstitut des Hautes Études Scientifiques, Bures-sur-Yvette Marius de LeeuwUtrecht University Frederik De RooVrije Universiteit, Brussel Jan De Rydt Katholieke Universiteit Leuven and CERN, Geneva Bernard de WitInstitute for Theoretical Physics, Utrecht University Stephane DetournayIstituto Nazionale di Fisica Nucleare, Sezione di Milano Paolo Di Vecchia Niels Bohr Institute, København Eugen DiaconuUniversity of Craiova Vladimir Dobrev Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia Nick DoreyUniversity of Cambridge Hajar Ebrahim NajafabadiIPM, Tehran Federico Elmetti Università di Milano Oleg Evnin Vrije Universiteit, Brussel Francesco Fiamberti Università di Milano Davide Forcella SISSA, Trieste and CERN, Geneva Valentina Forini Humboldt-Universität zu Berlin Angelos Fotopoulos Università di Torino Denis Frank Université de Neuchâtel Marialuisa Frau Università di Torino Matthias Gaberdiel Eidgenössische Technische Hochschule (ETH), Zürich Diego Gallego SISSA/ISAS, Trieste Maria Pilar Garcia del MoralIstituto Nazionale di Fisica Nucleare, Università di Torino Valentina Giangreco Marotta Pulet

2008-11-01

220

Yakima River Species Interactions Studies; Yakima/Klickitat Fisheries Project Monitoring and Evaluation, 2004-2005 Annual Report.  

SciTech Connect

This report is intended to satisfy two concurrent needs: (1) provide a contract deliverable from the Washington Department of Fish and Wildlife (WDFW) to the Bonneville Power Administration (BPA), with emphasis on identification of salient results of value to ongoing Yakima/Klickitat Fisheries Project (YKFP) planning, and (2) summarize results of research that have broader scientific relevance. This is the thirteenth of a series of progress reports that address species interactions research and supplementation monitoring of fishes in response to supplementation of salmon and steelhead in the upper Yakima River basin (Hindman et al. 1991; McMichael et al. 1992; Pearsons et al. 1993; Pearsons et al. 1994; Pearsons et al. 1996; Pearsons et al. 1998, Pearsons et al. 1999, Pearsons et al. 2001a, Pearsons et al. 2001b, Pearsons et al. 2002, Pearsons et al. 2003, Pearsons et al. 2004). Journal articles and book chapters have also been published from our work (McMichael 1993; Martin et al. 1995; McMichael et al. 1997; McMichael and Pearsons 1998; McMichael et al. 1998; Pearsons and Fritts 1999; McMichael et al. 1999; McMichael et al. 1999; Pearsons and Hopley 1999; Ham and Pearsons 2000; Ham and Pearsons 2001; Amaral et al. 2001; McMichael and Pearsons 2001; Pearsons 2002, Fritts and Pearsons 2004, Pearsons et al. in press, Major et al. in press). This progress report summarizes data collected between January 1, 2004 and December 31, 2004. These data were compared to findings from previous years to identify general trends and make preliminary comparisons. Interactions between fish produced as part of the YKFP, termed target species or stocks, and other species or stocks (non-target taxa) may alter the population status of non-target species or stocks. This may occur through a variety of mechanisms, such as competition, predation, and interbreeding (Pearsons et al. 1994; Busack et al. 1997; Pearsons and Hopley 1999). Furthermore, the success of a supplementation program may be limited by strong ecological interactions such as predation or competition (Busack et al. 1997). Our work has adapted to new information needs as the YKFP has evolved. Initially, our work focused on interactions between anadromous steelhead and resident rainbow trout (for explanation see Pearsons et al. 1993), then interactions between spring chinook salmon and rainbow trout, and recently interactions between spring chinook salmon and highly valued non-target taxa (NTT; e.g., bull trout); and interactions between strong interactor taxa (e.g., those that may strongly influence the abundance of spring chinook salmon; e.g., smallmouth bass) and spring chinook salmon. The change in emphasis to spring chinook salmon has largely been influenced by the shift in the target species planned for supplementation (Bonneville Power Administration et al. 1996; Fast and Craig 1997). Originally, steelhead and spring chinook salmon were proposed to be supplemented simultaneously (Clune and Dauble 1991). However, due in part to the uncertainties associated with interactions between steelhead and rainbow trout, spring chinook and coho salmon were supplemented before steelhead. This redirection in the species to be supplemented has prompted us to prioritize interactions between spring chinook and rainbow trout, while beginning to investigate other ecological interactions of concern. Prefacility monitoring of variables such as rainbow trout density, distribution, and size structure was continued and monitoring of other NTT was initiated in 1997. This report is organized into five chapters that represent major topics associated with monitoring stewardship, utilization, and strong interactor taxa. Chapter 1 reports the results of non-target taxa monitoring after the sixth release of hatchery salmon smolts in the upper Yakima River Basin. Chapter 2 reports on the impacts of supplementation and reintroduction of salmon to trout. Chapter 2 was submitted as a manuscript to the North American Journal of Fisheries Management. Chapter 3 is an essay that describes the problems associated

Pearsons, Todd N.; Temple, Gabriel M.; Fritts, Anthony L. (Washington Department of Fish and Wildlife, Olympia, WA)

2005-05-01

221

EAARL coastal topography-western Florida, post-Hurricane Charley, 2004: seamless (bare earth and submerged.  

USGS Publications Warehouse

Project Description These remotely sensed, geographically referenced elevation measurements of lidar-derived seamless (bare-earth and submerged) topography were produced as a collaborative effort between the U.S. Geological Survey (USGS), Coastal and Marine Geology Program (CMGP), St. Petersburg, FL, and the National Aeronautics and Space Administration (NASA), Wallops Flight Facility, VA. This project provides highly detailed and accurate datasets of a portion of the western Florida coastline beachface, acquired post-Hurricane Charley on August 17 and 18, 2004. The datasets are made available for use as a management tool to research scientists and natural-resource managers. An innovative airborne lidar instrument originally developed at the NASA Wallops Flight Facility, and known as the Experimental Advanced Airborne Research Lidar (EAARL), was used during data acquisition. The EAARL system is a raster-scanning, waveform-resolving, green-wavelength (532-nanometer) lidar designed to map near-shore bathymetry, topography, and vegetation structure simultaneously. The EAARL sensor suite includes the raster-scanning, water-penetrating full-waveform adaptive lidar, a down-looking red-green-blue (RGB) digital camera, a high-resolution multispectral color infrared (CIR) camera, two precision dual-frequency kinematic carrier-phase GPS receivers, and an integrated miniature digital inertial measurement unit, which provide for sub-meter georeferencing of each laser sample. The nominal EAARL platform is a twin-engine Cessna 310 aircraft, but the instrument may be deployed on a range of light aircraft. A single pilot, a lidar operator, and a data analyst constitute the crew for most survey operations. This sensor has the potential to make significant contributions in measuring sub-aerial and submarine coastal topography within cross-environmental surveys. Elevation measurements were collected over the survey area using the EAARL system, and the resulting data were then processed using the Airborne Lidar Processing System (ALPS), a custom-built processing system developed in a NASA-USGS collaboration. ALPS supports the exploration and processing of lidar data in an interactive or batch mode. Modules for presurvey flight-line definition, flight-path plotting, lidar raster and waveform investigation, and digital camera image playback have been developed. Processing algorithms have been developed to extract the range to the first and last significant return within each waveform. ALPS is used routinely to create maps that represent submerged or sub-aerial topography. Specialized filtering algorithms have been implemented to determine the 'bare earth' under vegetation. For more information about similar projects, please visit the Decision Support for Coastal Science and Management website. Selected References Brock, J.C., Wright, C.W., Sallenger, A.H., Krabill, W.B., and Swift, R.N., 2002, Basis and methods of NASA airborne topographic mapper Lidar surveys for coastal studies: Journal of Coastal Research, v. 18, no. 1, p. 1-13. Crane, Michael, Clayton, Tonya, Raabe, Ellen, Stoker, Jason, Handley, Larry, Bawden, Gerald, Morgan, Karen, and Queija, Vivian, 2004, Report of the U.S. Geological Survey Lidar workshop sponsored by the Land Remote Sensing Program and held in St. Petersburg, FL, November 2002: U.S. Geological Survey Open-File Report 2004-1456, 72 p. Nayegandhi, Amar, Brock, J.C., and Wright, C.W., 2009, Small-footprint, waveform-resolving Lidar estimation of submerged and sub-canopy topography in coastal environments: International Journal of Remote Sensing, v. 30, no. 4, p. 861-878. Sallenger, A.H., Wright, C.W., and Lillycrop, Jeff, 2005, Coastal impacts of the 2004 hurricanes measured with airborne Lidar; initial results: Shore and Beach, v. 73, nos. 2-3, p. 10-14. Resources Included Readme.txt File

Nayegandhi, Amar; Bonisteel, Jamie M.; Wright, C. Wayne; Sallenger, A.H.; Brock, John C.; Yates, Xan

2010-01-01

222

The impact of land use on biological activity of agriculture soils. An State-of-the-Art  

NASA Astrophysics Data System (ADS)

Biological activity is a crucial soil property affecting soil sustainability and crop production. The unsuitable land management can lead to a loss in soil fertility and a reduction in the abundance and diversity of soil microorganisms. This can be as a consequence of high erosion rates due to the mismanagement of farmers (Cerdà et al., 2009a). However ecological practices and some organic amendments can promote the activities of soil microbial communities, and increase its biodiversity (García-Orenes et al., 2010; 2013). The impact of land use in microbiological properties of agriculture soil are presented and discussed in this review. Biological activity is quantified by microbial soil communities and soil enzyme activities to interpret the effects of soil management practices (Morugán-Coronado et al., 2013). The aim of biological activity tests is to give a reliable description of the state of agricultural soils under the effect of different land uses. Numerous methods have been used to determine the impact of land uses on microbiological properties. The current used methods for detecting microbial diversity are based on molecular techniques centered on the 16S and 18S rRNA encoding sequences such as CLPP: community-level physiological profiles; T-RFLP: terminal restriction fragment length polymorphism; DGGE: denaturing gradient gel electrophoresis; OFRG: oligonucleotide fingerprinting of rRNA genes, ARISA: Automated Ribosomal intergenic spacer analysis, SSCP: single-strand conformation polymorphism. And techniques based on the cellular composition of the microbes such as PLFA: phospholipid fatty acid analysis. Other methods are based on the activity of microbes, for example, Cmic: microbial biomass carbon; SIR: substrate induced respiration; BSR: Basal soil respiration; qCO2 metabolic quotient; enzymatic activities (Urease, ß-glucosidase and phosphatase) (Deng, 2012). Agricultural land management can contribute to increased rates of erosion due to desiccation, mechanical destruction, soil compaction, reduce pore volume, and disruption of access to food resources (Cerdà et al., 2009b). Furthermore, it can lead to a loss in soil fertility and reduction in the abundance and diversity of soil microorganism (Caravaca et al., 2002). Nevertheless, some organic fertilizers, such as manure, waste water and sewage sludge, promote the activities of soil microbial communities (Morugán-Coronado et al., 2011; Balota et al., 2013; Macci et al., 2013). On the other hand, land use influences soil microbial processes by changing the quantity and quality of plant residues entering the soil and their spatial distribution, thorough changes in nutrients and inputs (García-Orenes et al., 2009; 2012). The abuse of pesticides can drastically modify the function and structure of microbial communities, altering the terrestrial ecosystems, which has important implication for soil quality (Pampulha et al., 2006). Soil quality is important for the sustainable development of terrestrial ecosystem (Paz-Ferreiro & Fu, 2013; Vasconcellos et al., 2013). This paper will review the State-of-the-Art of the scientific knowledge on the impact of land use on the biological activity in agriculture soils Acknowledgements The research projects GL2008-02879/BTE, LEDDRA 243857 and RECARE supported this research. References Balota, E. L., Yada, I.F., Amaral, H., Nakatani, A.S., Dick, R.P., Coyne, M.S. 2013. Long-term land use influences soil microbial biomass p and s, phosphatase and arylsulfatase activities, and mineralization in a brazilian oxisol. Land degradation & development. DOI: 10.1002/ldr.2242 Caravaca F, Masciandaro G, Ceccanti B. 2002. Land use in relation to soil chemical and biochemical properties in a semiarid Mediterranean environment. Soil and Tillage Research 68: 23-30. Cerdà, A., Flanagan, D.C., le Bissonnais, Y., Boardman, J. 2009a. Soil erosion and agriculture Soil and Tillage Research 106, 107-108. DOI: 10.1016/j.still.2009.1 Cerdà, A., Giménez-Morera, A.G., Bodí, M.B. 2009b. Soil and water losses from new citrus orchards

Morugán-Coronado, Alicia; Cerdà, Artemi; García-Orenes, Fuensanta

2014-05-01

223

List of Participants  

NASA Astrophysics Data System (ADS)

Mohab Abou ZeidVrije Universiteit, Brussel Joke AdamKatholieke Universiteit Leuven Nikolas AkerblomMax-Planck-Institut für Physik, München Luis Fernando Alday Utrecht University Stelios Alexandris University of Patras Antonio Amariti Università di Milano-Bicocca Nicola Ambrosetti Université de Neuchâtel Pascal Anastasopoulos Università di Roma Tor Vergata Laura Andrianopoli Enrico Fermi Center Carlo Angelantonj Università di Torino Lilia Anguelova Queen Mary, University of London Daniel AreanUniversidade de Santiago de Compostela Gleb ArutyunovUtrecht University Spyros Avramis NTU Athens—University of Patras Ioannis Bakas University of Patras Subrata Bal Dublin Institute for Advanced Studies Igor Bandos Valencia University Jessica Barrett University of Iceland Marco Baumgartl Eidgenössische Technische Hochschule, Zürich Jacopo Bechi Università di Firenze James Bedford Queen Mary, University of London Jorge Bellorin Universidad Autonoma de Madrid Francesco Benini SISSA, Trieste Eric Bergshoeff Centre for Theoretical Physics, University of Groningen Gaetano BertoldiUniversity of Wales, Swansea Adel Bilal Laboratoire de Physique Théorique, École Normale Superieure, Paris Matthias Blau Université de Neuchâtel Johannes BroedelUniversität Hannover Felix Brümmer Universität Heidelberg Julio Cesar Bueno de Andrade São Paulo State University—UNESP Cliff Burgess McMaster University Agostino Butti Laboratoire de Physique Théorique, École Normale Superieure, Paris Marco Caldarelli Universitat de Barcelona Pablo G Camara Centre de Physique Théorique, École Polytechnique, Palaiseau Joan Camps Universitat de Barcelona Felipe Canoura FernandezUniversidade de Santiago de Compostela Luigi Cappiello Università di Napoli Federico II Luca Carlevaro École Polytechnique, Palaiseau Roberto Casero Centre de Physique Théorique, École Polytechnique, Palaiseau Claudio Caviezel Max-Planck-Institut für Physik, München Alessio Celi Universitat de Barcelona Anna Ceresole Istituto Nazionale di Fisica Nucleare and Università di Torino Kang Sin Choi University of Bonn Michele Cirafici University of Patras Andres Collinucci Katholieke Universiteit Leuven Aldo Cotrone Universitat de Barcelona Ben Craps Vrije Universiteit, Brussel Stefano Cremonesi SISSA, Trieste Gianguido Dall'Agata Padova University Sanjit Das Indian Institute of Technology, Kharagpur Forcella Davide SISSA, Trieste Jose A de Azcarraga Valencia University and Instituto de Fìsica Corpuscular (CSIC-UVEG), Valencia Sophie de BuylInstitut des Hautes Études Scientifiques, Bures-sur-Yvette Jean-Pierre Derendinger Université de Neuchâtel Stephane Detournay Università Degli Studi di Milano Paolo Di Vecchia NORDITA, København Oscar Dias Universitat de Barcelona Vladimir Dobrev Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia Joel Ekstrand Department of Theoretical Physics, Uppsala University Federico Elmetti Università di Milano I Diaconu Eugen University of Craiova Oleg Evnin Vrije Universiteit, Brussel Bo Feng Imperial College, London Livia Ferro Università di Torino Pau Figueras Universitat de Barcelona Raphael Flauger University of Texas at Austin Valentina Forini Università di Perugia Angelos Fotopoulos Università di Torino Denis Frank Université de Neuchâtel Lisa Freyhult Albert-Einstein-Institut, Golm Carlos Fuertes Instituto de Física Teórica, Madrid Matthias Gaberdiel Eidgenössische Technische Hochschule, Zürich Maria Pilar Garcia del Moral Università di Torino Daniel Gerber Instituto de Física Teórica, Madrid Valentina Giangreco Marotta Puletti Uppsala University Joaquim Gomis Universitat de Barcelona Gianluca Grignani Università di Perugia Luca Griguolo Università di Parma Umut Gursoy École Polytechnique, Palaiseau and École Normale Supérieure, Paris Michael Haack Ludwig-Maximilians-Universität, München Troels Harmark Niels Bohr Institute, København Alexander Haupt Imperial College, London Michal Heller Jagiellonian University, Krakow Samuli Hemming University of Iceland Yasuaki Hikida DESY,

2007-11-01

224

Influence of chronic renal failure on protein synthesis and albumin metabolism in rat liver.  

PubMed Central

Chronic renal failure in rats leads to changes in hepatic protein synthesis and albumin metabolism at both the cellular and molecular level. In rats with chronic uremia (blood urea nitrogen greater than 45 mg/100 ml 1 mo after surgical reduction in renal mass), cell-free protein synthesis is reduced 30--40% in liver membrane-bound polyribosomes. Albumin synthesis by membrane-bound polysomes in uremia is reduced even more than the reduction in total protein synthesis. Activity of free polysomes remains norma. There is also intracellular accumulation of albumin in liver of uremic rats and a concomitant decrease in serum albumin. In normal liver, most intracellular albumin is located in the microsomal fraction, whereas in liver from uremic animals the excess albumin is found in the free cytosol fraction. These results can be explained either by a defect in synthesis of albumin by membrane-bound polysomes with release of newly synthesized albumin into the cytosol or by a reduced ability of polysomes synthesizing albumin to associate with the membrane fraction in rats with chronic renal failure. PMID:856871

Grossman, S B; Yap, S H; Shafritz, D A

1977-01-01

225

A flight-test methodology for identification of an aerodynamic model for a V/STOL aircraft  

NASA Technical Reports Server (NTRS)

Described is a flight test methodology for developing a data base to be used to identify an aerodynamic model of a vertical and short takeoff and landing (V/STOL) fighter aircraft. The aircraft serves as a test bed at Ames for ongoing research in advanced V/STOL control and display concepts. The flight envelope to be modeled includes hover, transition to conventional flight, and back to hover, STOL operation, and normaL cruise. Although the aerodynamic model is highly nonlinear, it has been formulated to be linear in the parameters to be identified. Motivation for the flight test methodology advocated in this paper is based on the choice of a linear least-squares method for model identification. The paper covers elements of the methodology from maneuver design to the completed data base. Major emphasis is placed on the use of state estimation with tracking data to ensure consistency among maneuver variables prior to their entry into the data base. The design and processing of a typical maneuver is illustrated.

Bach, Ralph E., Jr.; Mcnally, B. David

1988-01-01

226

Localizing NuSTAR J163433-473838: the First Source Discovered by NuSTAR  

NASA Astrophysics Data System (ADS)

A goal of the NuSTAR mission is to study hard X-ray populations in the Galaxy. While INTEGRAL has carried out a wide survey, uncovering many new types of interesting and extreme sources (highly energetic PWNe, new types of HMXBs, etc.), NuSTAR emphasizes going deeper into the Galactic plane to look for hidden populations. NuSTAR recently found its first new source, NuSTAR J163433-473838, during an observation of the Norma spiral arm region. In addition to searching for known sources in SIMBAD, CSC, etc., we are confident that it is a new source as Chandra did not detect it during an observation in mid-2011. We are looking for compact objects in regions with star formation to look for faint HMXBs that are early in their evolutionary process or perhaps magnetars or black holes that are expected to be associated with high mass stars. We are requesting a Chandra observation to localize the source in order to search for counterparts (e.g., near-IR) to determine its nature.

Tomsick, John

2012-09-01

227

Near-Infrared Spectra of High-Albedo Outer Main-Belt Asteroids  

NASA Astrophysics Data System (ADS)

Most outer main-belt asteroids have low albedos because of their carbonaceouslike bodies. However, infrared satellite surveys have revealed that some asteroids have high albedos, which may suggest the presence of unusual surface minerals for those primitive objects. We present new near-infrared (1.1-2.5 ?m) spectra of four outer main-belt asteroids with albedos ? 0.1. The C-complex asteroids (555) Norma and (2542) Calpurnia are featureless and have (50%-60%) amorphous Mg pyroxenes that might explain the high albedos. Asteroids (701) Oriola (which is a C-complex asteroid) and (2670) Chuvashia (a D/T-type or M-type asteroid) show possible broad absorption bands (1.5-2.1 ?m). The feature can be reproduced by either Mg-rich amorphous pyroxene (with 50%-60% and 80%-95% Mg, respectively) or orthopyroxene (crystalline silicate), which might be responsible for the high albedos. No absorption features of water ice (near 1.5 and 2.0 ?m) are detected in the objects. We discuss the origin of high albedo components in the outer main-belt asteroids and their physical relations to comets. Based on data collected at the Subaru Telescope, which is operated by the National Astronomical Observatory of Japan.

Kasuga, Toshihiro; Usui, Fumihiko; Shirahata, Mai; Kuroda, Daisuke; Ootsubo, Takafumi; Okamura, Natsuko; Hasegawa, Sunao

2015-02-01

228

Using binary classification to prioritize and curate articles for the Comparative Toxicogenomics Database.  

PubMed

We report on the original integration of an automatic text categorization pipeline, so-called ToxiCat (Toxicogenomic Categorizer), that we developed to perform biomedical documents classification and prioritization in order to speed up the curation of the Comparative Toxicogenomics Database (CTD). The task can be basically described as a binary classification task, where a scoring function is used to rank a selected set of articles. Then components of a question-answering system are used to extract CTD-specific annotations from the ranked list of articles. The ranking function is generated using a Support Vector Machine, which combines three main modules: an information retrieval engine for MEDLINE (EAGLi), a gene normalization service (NormaGene) developed for a previous BioCreative campaign and finally, a set of answering components and entity recognizer for diseases and chemicals. The main components of the pipeline are publicly available both as web application and web services. The specific integration performed for the BioCreative competition is available via a web user interface at http://pingu.unige.ch:8080/Toxicat. PMID:23221176

Vishnyakova, Dina; Pasche, Emilie; Ruch, Patrick

2012-01-01

229

Detection of a Young Stellar Population in the Background of Open Clusters in the Third Galactic Quadrant  

NASA Astrophysics Data System (ADS)

We report the detection of a young stellar population (<=100 Myr) in the background of nine young open clusters belonging to a homogenous sample of 30 star clusters in the third Galactic quadrant (at 217deg<=l<=260deg). Deep and accurate UBVRI photometry allows us to measure model-independent age and distance for the clusters and the background population with high confidence. This population is exactly the same population (the blue plume) recently detected in three intermediate-age open clusters and suggested to be a <=1-2 Gyr old population belonging to the Canis Major (CMa) overdensity (Bellazzini et al.; Martínez-Delgado et al.). However, we find that the young population in those three clusters and in six clusters of our sample follows the pattern of the Norma-Cygnus spiral arm as defined by CO clouds remarkably well, while in the other three program clusters it lies in the Perseus arm. We finally provide one example (out of 21) of a cluster that does not show any background population, demonstrating that this population is not ubiquitous toward CMa.

Carraro, Giovanni; Vázquez, Ruben A.; Moitinho, André; Baume, Gustavo

2005-09-01

230

A newly discovered young massive star cluster at the far end of the Galactic Bar  

NASA Astrophysics Data System (ADS)

We present a near-infrared study of the candidate star cluster Mercer 81, located at the centre of the G338.4+0.1 H II region and close to the TeV gamma-ray source HESS 1640-465. Using Hubble Space Telescope/NICMOS imaging and VLT/ISAAC spectroscopy, we have detected a compact and highly reddened cluster of stars, although the bright stars in the centre of the field are in fact foreground objects. The cluster contains nine stars with strong P? emission, one of which we identify as a Wolf-Rayet (WR) star, as well as an A-type supergiant. The line-of-sight extinction is very large, AV˜ 45, illustrating the challenges of locating young star clusters in the Galactic plane. From a quantitative analysis of the WR star, we argue for a cluster age of 3.7? Myr, and, assuming that all emission-line stars are WR stars, a cluster mass of ?104 M?. A kinematic analysis of the cluster's surrounding H II region shows that the cluster is located in the Galactic disc at a distance of 11 ± 2 kpc. This places the cluster close to where the far end of the Bar intersects the Norma spiral arm. This cluster, as well as the nearby cluster [DBS2003]179, represents the first detections of active star cluster formation at this side of the Bar, in contrast to the near side which is well known to have recently undergone a ˜106 M? starburst episode.

Davies, Ben; de La Fuente, Diego; Najarro, Francisco; Hinton, Jim A.; Trombley, Christine; Figer, Donald F.; Puga, Elena

2012-01-01

231

Our Milky Way Gets a Makeover  

NASA Technical Reports Server (NTRS)

[figure removed for brevity, see original site] [figure removed for brevity, see original site] Click on image for Fully Annotated Version Click on image for Poster Version

Like early explorers mapping the continents of our globe, astronomers are busy charting the spiral structure of our galaxy, the Milky Way. Using infrared images from NASA's Spitzer Space Telescope, scientists have discovered that the Milky Way's elegant spiral structure is dominated by just two arms wrapping off the ends of a central bar of stars. Previously, our galaxy was thought to possess four major arms.

This artist's concept illustrates the new view of the Milky Way, along with other findings presented at the 212th American Astronomical Society meeting in St. Louis, Mo. The galaxy's two major arms (Scutum-Centaurus and Perseus) can be seen attached to the ends of a thick central bar, while the two now-demoted minor arms (Norma and Sagittarius) are less distinct and located between the major arms. The major arms consist of the highest densities of both young and old stars; the minor arms are primarily filled with gas and pockets of star-forming activity.

The artist's concept also includes a new spiral arm, called the 'Far-3 kiloparsec arm,' discovered via a radio-telescope survey of gas in the Milky Way. This arm is shorter than the two major arms and lies along the bar of the galaxy.

Our sun lies near a small, partial arm called the Orion Arm, or Orion Spur, located between the Sagittarius and Perseus arms.

2008-01-01

232

Effects of commercially available pneumatic compression on muscle glycogen recovery after exercise.  

PubMed

Keck, NA, Cuddy, JS, Hailes, WS, Dumke, CL, and Ruby, BC. Effects of commercially available pneumatic compression on muscle glycogen recovery after exercise. J Strength Cond Res 29(2): 379-385, 2015-The purpose of this study was to investigate the effects of pneumatic compression pants on postexercise glycogen resynthesis. Active male subjects (n = 10) completed 2 trials consisting of a 90-minute glycogen depleting ride, followed by 4 hours of recovery with either a pneumatic compression device (PCD) or passive recovery (PR) in a random counterbalanced order. A carbohydrate beverage (1.8 g·kg bodyweight) was provided at 0 and 2 hours after exercise. Muscle biopsies (vastus lateralis) were obtained immediately and 4 hours after exercise for glycogen analyses. Blood samples were collected throughout recovery to measure glucose and insulin. Eight fingerstick blood samples for lactate were collected in the last 20 minutes of the exercise period and during the initial portion of the recovery period. Heart rate was monitored throughout the trial. During the PCD trial, subjects recovered using a commercially available recovery device (NormaTec PCD) operational at 0-60 and 120-180 minutes into recovery period. The same PCD was worn during the PR trial but was not turned on to create pulsatile pressures. There was no difference in muscle glycogen resynthesis during the recovery period (6.9 ± 0.8 and 6.9 ± 0.5 mmol·kg wet wt·h for the PR and PCD trials, respectively). Blood glucose, insulin, and lactate concentrations changed with respect to time but were not different between trials (p > 0.05). The use of PCD did not alter the rate of muscle glycogen resynthesis, blood lactate, or blood glucose and insulin concentrations associated with a postexercise oral glucose load. PMID:25463693

Keck, Nathan A; Cuddy, John S; Hailes, Walter S; Dumke, Charles L; Ruby, Brent C

2015-02-01

233

Evaluation Metrics for the Paragon XP/S-15  

NASA Technical Reports Server (NTRS)

On February 17th 1993, the Numerical Aerodynamic Simulation (NAS) facility located at the NASA Ames Research Center installed a 224 node Intel Paragon XP/S-15 system. After its installation, the Paragon was found to be in a very immature state and was unable to support a NAS users' workload, composed of a wide range of development and production activities. As a first step towards addressing this problem, we implemented a set of metrics to objectively monitor the system as operating system and hardware upgrades were installed. The metrics were designed to measure four aspects of the system that we consider essential to support our workload: availability, utilization, functionality, and performance. This report presents the metrics collected from February 1993 to August 1993. Since its installation, the Paragon availability has improved from a low of 15% uptime to a high of 80%, while its utilization has remained low. Functionality and performance have improved from merely running one of the NAS Parallel Benchmarks to running all of them faster (between 1 and 2 times) than on the iPSC/860. In spite of the progress accomplished, fundamental limitations of the Paragon operating system are restricting the Paragon from supporting the NAS workload. The maximum operating system message passing (NORMA IPC) bandwidth was measured at 11 Mbytes/s, well below the peak hardware bandwidth (175 Mbytes/s), limiting overall virtual memory and Unix services (i.e. Disk and HiPPI I/O) performance. The high NX application message passing latency (184 microns), three times than on the iPSC/860, was found to significantly degrade performance of applications relying on small message sizes. The amount of memory available for an application was found to be approximately 10 Mbytes per node, indicating that the OS is taking more space than anticipated (6 Mbytes per node).

Traversat, Bernard; McNab, David; Nitzberg, Bill; Fineberg, Sam; Blaylock, Bruce T. (Technical Monitor)

1993-01-01

234

The Scientist as Sentinel (Invited)  

NASA Astrophysics Data System (ADS)

Scientists have been warning the world for some time about the risks of anthropogenic interference in the climate system. But we struggle with how, exactly, to express that warning. The norms of scientific behavior enjoin us from the communication strategies normally associated with warnings. If a scientist sounds excited or emotional, for example, it is often assumed that he has lost his capac¬ity to assess data calmly and therefore his conclusions are suspect. If the scientist is a woman, the problem is that much worse. In a recently published article my colleagues and I have shown that scientists have systematically underestimated the threat of climate change (Brysse et al., 2012). We suggested that this occurs for norma¬tive reasons: The scientific values of rationality, dispassion, and self-restraint lead us to demand greater levels of evidence in support of surprising, dramatic, or alarming conclusions than in support of less alarming conclusions. We call this tendency 'err¬ing on the side of least drama.' However, the problem is not only that we err on the side of least drama in our assessment of evidence, it's also that we speak without drama, even when our conclusions are dramatic. We speak without the emotional cadence that people expect to hear when the speaker is worried. Even when we are worried, we don't sound as if we are. In short, we are trying to act as sentinels, but we lack the register with which to do so. Until we find those registers, or partner with colleagues who are able to speak in the cadences that communicating dangers requires, our warnings about climate change will likely continue to go substantially unheeded.

Oreskes, N.

2013-12-01

235

Identifications of Four Integral Sources in the Galactic Plane via CHANDRA Localizations  

NASA Technical Reports Server (NTRS)

Hard X-ray imaging of the Galactic plane by the INTEGRAL satellite is uncovering large numbers of 20-100 keV "IGR" sources. We present results from Chandra, INTEGRAL, optical, and IR observations of four IGR sources: three sources in the Norma region of the Galaxy(1GR J16195-4945,IGR J16207-5129, and IGR J16167-4957) and one that is closer to the Galactic center (IGR 5171 95-4100). In all four cases, one relatively bright Chandra source is seen in the INTEGRAL error circle, and these are likely to be the soft X-ray counterparts of the IGR sources. They have hard 0.3-10 keV spectra with power-law photon indices of Gamma = 0.5-1.1. While many previously studied IGR sources show high column densities (NH approx. 10(exp 23)-10(exp 24)/sq cm), only IGR J16195-4945 has a column density that could be as high as 10(exp 23)/sq cm. Using optical and IR sky survey catalogs and our own photometry, we have obtained identifications for all four sources. The J-band magnitudes are in the range 14.9-10.4, and we have used the optical/IR spectral energy distributions (SEDs) to constrain the nature of the sources. Blackbody components with temperature lower limits of >9400 K for IGR J16195-4945 and >18,000 K for IGR J16207-5129 indicate that these are very likely high-mass X-ray binaries (HMXBs). However, for IGR 516167-4957 and IGR J17195-4100, low extinction and the SEDs indicate later spectral types for the putative companions, suggesting that these are not HMXBs.

Tomsick, John A.; Chaty, Sylvain; Rodriquez, Jerome; Foschini, Luigi; Walter, Roland; Kaaret, Philip

2006-01-01

236

Spectroscopy of southern Galactic disk planetary nebulae. Notes on chemical composition and emission-line stars  

NASA Astrophysics Data System (ADS)

Aims: We present low resolution spectroscopic observations for a sample of 53 planetary nebulae (PNe) located in the southern sky between Vela and Norma constellations and pertaining to the Galactic disk with expected Galactocentric distance range of 5 to 10 kpc. Methods: We derive nebular chemical composition and plasma parameters with the classical empirical method. For most of the observed objects, this has been done for the first time. We compare our results to published data for PNe of the Galactic bulge and PNe in the inner-disk region with expected typical Galactocentric distance of about 3 kpc. We use the spectra to search for emission-line central stars in the observed sample. Results: The distributions of the chemical abundances of the observed disk sample are generally indistinguishable from Galactic bulge and inner-disk PNe populations. The exceptions are possible differences in the He/H distribution, as compared to bulge PNe and Ne/Ar, as compared to the inner-disk PNe sample. The derived O/H ratios for the observed disk PNe fit to the concept of flattening of the chemical gradient in the inner parts of the Milky Way. Investigating the spectra, we found six new emission-line central stars comprising examples of all known types: WEL, VL, and [WR]. We confirm that these types represent three evolutionary unconnected forms of enhanced mass-loss in the central stars of PNe. We note on the problem of high ionisation PNe with nebular C IV emission that can mimic the presence of WEL central stars in 1D spectra. Based on observations made at the South African Astronomical Observatory.Appendices are available in electronic form at http://www.aanda.org

Górny, S. K.

2014-10-01

237

THREE-DIMENSIONAL VELOCITY AND DENSITY RECONSTRUCTIONS OF THE LOCAL UNIVERSE WITH COSMICFLOWS-1  

SciTech Connect

This paper presents an analysis of the local peculiar velocity field based on the Wiener Filter (WF) reconstruction method. We used our currently available catalog of distance measurements containing 1797 galaxies within 3000 km s{sup -1}: Cosmicflows-1. The WF method is used to recover the full three-dimensional peculiar velocity field from the observed map of radial velocities and to recover the underlying linear density field. The velocity field within a data zone of 3000 km s{sup -1} is decomposed into a local component that is generated within the data zone and a tidal one that is generated by the mass distribution outside that zone. The tidal component is characterized by a coherent flow toward the Norma-Hydra-Centaurus (Great Attractor) region, while the local component is dominated by a flow toward the Virgo Cluster and away from the Local Void. A detailed analysis shows that the local flow is predominantly governed by the Local Void and the Virgo Cluster plays a lesser role. The analysis procedure was tested against a mock catalog. It is demonstrated that the WF accurately recovers the input velocity field of the mock catalog on the scale of the extraction of distances and reasonably recovers the velocity field on significantly larger scales. The Bayesian WF reconstruction is carried out within the {Lambda}CDM WMAP5 framework. The WF reconstruction draws particular attention to the importance of voids in proximity to our neighborhood. The prominent structure of the Local Supercluster is wrapped in a horseshoe collar of under density with the Local Void as a major component.

Courtois, Helene M.; Tully, R. Brent [Institute for Astronomy (IFA), University of Hawaii, 2680 Woodlawn Drive, HI 96822 (United States); Hoffman, Yehuda [Racah Institute of Physics, Hebrew University, Jerusalem 91904 (Israel); Gottloeber, Stefan, E-mail: courtois@ifa.hawaii.edu [Leibniz-Institut fuer Astrophysik Potsdam (AIP), An der Sternwarte 16, 14482 Potsdam (Germany)

2012-01-01

238

Deep optical survey of the stellar content of Sh2-311 region  

NASA Astrophysics Data System (ADS)

The stellar content in and around Sh2-311 region have been studied using the deep optical observations as well as near-infrared (NIR) data from 2MASS. The region contains three clusters, viz. NGC 2467, Haffner 18 and Haffner 19. We have made an attempt to distinguish the stellar content of these individual regions as well as to re-determine their fundamental parameters such as distance, reddening, age, onto the basis of a new and more extended optical and infrared photometric data set. NGC 2467 and Haffner 19 are found to be located in the Perseus arm at the distances of 5.0 ± 0.4 kpc and 5.7 ± 0.4 kpc, respectively, whereas Haffner 18 is located at the distance of 11.2 ± 1.0 kpc. The clusters NGC 2467 and Haffner 19 might have formed from the same molecular cloud, whereas the cluster Haffner 18 is located in the outer galactic arm, i.e. the Norma-Cygnus arm. We identify 8 class II young stellar objects (YSOs) using the NIR (J-H)/(H-K) two colour diagram. We have estimated the age and mass of the YSOs identified in the present work and those by Snider et al. (2009) using the V/(V-I) colour-magnitude diagram. The estimated ages and mass range of the majority of the YSOs are ?1 Myr and ?0.4-3.5 M?, respectively, indicating that these sources could be T-Tauri stars or their siblings. Spatial distribution of the YSOs shows that some of the YSOs are distributed around the HII region Sh2-311, suggesting a triggered star formation at its periphery.

Yadav, Ram Kesh; Pandey, A. K.; Sharma, Saurabh; Jose, J.; Ogura, K.; Kobayashi, N.; Samal, M. R.; Eswaraiah, C.; Chandola, H. C.

2015-01-01

239

Metallothionein III (MT3) is a putative tumor suppressor gene that is frequently inactivated in pediatric acute myeloid leukemia by promoter hypermethylation  

PubMed Central

Background Acute myeloid leukemia (AML) is the second most common form of leukemia in children. Aberrant DNA methylation patterns are a characteristic feature in various tumors, including AML. Metallothionein III (MT3) is a tumor suppresser reported to show promoter hypermethylated in various cancers. However, the expression and molecular function of MT3 in pediatric AML is unclear. Methods Eleven human leukemia cell lines and 41 pediatric AML samples and 20 NBM/ITP (Norma bone marrow/Idiopathic thrombocytopenic purpura) control samples were analyzed. Transcription levels of MT3 were evaluated by semi-quantitative and real-time PCR. MT3 methylation status was determined by methylation specific PCR (MSP) and bisulfite genomic sequencing (BSG). The molecular mechanism of MT3 was investigated by apoptosis assays and PCR array analysis. Results The MT3 promoter was hypermethylated in leukemia cell lines. More CpG’s methylated of MT3 was observed 39.0% pediatric AML samples compared to 10.0% NBM controls. Transcription of MT3 was also significantly decreased in AML samples compared to NBM/ITP controls (P?

2014-01-01

240

Urinary excretion of hydroxylysine and its glycosides as an index of collagen degradation.  

PubMed

Urimary excretion of hydroxyprolin (Hyp) is one index of total collagen degradation, from all sources. Since some of the Hyp released from collagen may be further metabolized before it is excreted, other markers are necessary to measure collagen breakdown. Excretion of the glycosides of hydroxylysine (Hyl), glucosyl galactosyl hydroxylysine (Hy1[Gl)cGa1]), and galactosyl hydroxylysine (Hyl[Ga)]), more accurately reflects collagen metabolism since these products occur in specificratios in different tissue collagens and are themselves metabolized only to a minor degree. The ratios of total Hy1/Hyp and Hyl(GlcGal)/Hyl(Ga1) were measured in the urine of norma. subjects and of patients with Paget's disease of bone, hyperphosphatasia, and extensive thermal burns. In patients with extensive thermal burns the pattern of urinary Hy1 and its glycosides was consistent with degradation of collagen in dermis and fascia. When bone collagen degradation was dominant, the pattern of urinary metabolites reflected that source. Pagetic bone collagen has an amino acid composition similar to normal bone and Hy1(G1cGa1/Hyl(G1) of 0.396-0.743,vs. normal of 0.474+/-0.088. In untreated patients with severe Paget's disease of bone or hyperphosphatasia (urinary Hyp greater than 2.0 micronmol/mg creatinine) urinary Hyl/Hyp averaged 0.052+/-0.042 (0.042+/-0.009 in normal bone) and Hy1(G1cGa1)/Hy1(Ga1) 0.601+/-0.017 (0.47+/-0.009 in normal bone). When bone resorption was decreased sufficiently with calcitonin or disodium etidronate in these patients, both the urinary ratios of Hy1/Hyp and Hy1(G1cGa1)/Hyl(Gal) rose. In normal subjects treated with calcitonin and excreting relatively little Hyp, the ratio of Hy1/H)P approached 0.7 and Hy1(G1ycGa1)/Hy1(Ga1) approached 3.5. There increased ratios reveal the existence of a source of collagen breakdown other than skin or bone. The first subcompoent of complement, Clq, which has collagen-like sequences, relatively high amounts of Hy1, and most of the glycosylated Hy1 as Hy1(G1cGa1), could be the source of these metabolites. PMID:404321

Krane, S M; Kantrowitz, F G; Byrne, M; Pinnell, S R; Singer, F R

1977-05-01

241

Treatment of animal carcasses in poultry farms using sealed ditches.  

PubMed

Several hen carcass elimination experiments were conducted by isolating corpses in a sealed ditch and adding different doses of lime. The aim was to evaluate the viability of this method as an alternative to other elimination techniques, as required in the European regulation CE 1774/2002 [Reglamento CE 1774/2002, de 3 de octubre por el que se establecen las normas sanitarias aplicables a los subproductos animales no destinados a consumo humano]. The experiments were carried out at a natural scale, in a 200m3 ditch located in a livestock enterprise, using a proportion of 200g of lime/kg of carcass. We observed a high degradation of carcasses after six months, the method being also safe from a microbiological point of view. The material extracted from the ditch had a high calcium content (330.7gkg(-1)), which makes it an ideal product for soil lacking this element, or as an acidity corrector in acid soils due to its basic (pH 8.48) nature. It also contains a significant amount of mineral nutrients (17.0gkg(-1) N, 2.4gkg(-1) P and 4.9gkg(-1) K) and organic matter (101.5gkg(-1)). We also analysed the material extracted from the ditch prior to its renovation for the experiments and followed the processes taking place in the ditch during the first six months, when lime doses of 100, 200 and 300 gkg(-1) of treated carcass were applied. Simultaneously, we carried out laboratory experiments in cylindrical 25L deposits to evaluate the gas release of the three (100, 200 and 300g of lime/kg carcass) doses of lime used. After the tenth week, we observed CO2 concentrations ranging from 5% for the lower lime doses to very low levels for the 300g lime/kg carcass dose. As regards methane, in the three series of experiments, the release was highest during the first weeks, began to decrease in the eighth week and reached its lower value during the fourteenth week. Emissions of NO2 were not observed, and the levels of NH3 and SH2 were usually so high that they exceeded the detection level of the apparatus used to register them. PMID:18359624

Sánchez, M; González, J L; Gutiérrez, M A Díez; Guimaraes, A Correa; Gracia, L M Navas

2008-10-01

242

PHYSICAL CHARACTERISTICS OF G331.5-0.1: THE LUMINOUS CENTRAL REGION OF A GIANT MOLECULAR CLOUD  

SciTech Connect

We report molecular line and dust continuum observations toward the high-mass star-forming region G331.5-0.1, one of the most luminous regions of massive star formation in the Milky Way, located at the tangent region of the Norma spiral arm, at a distance of 7.5 kpc. Molecular emission was mapped toward the G331.5-0.1 GMC in the CO(J = 1 {yields} 0) and C{sup 18}O(J = 1 {yields} 0) lines with NANTEN, while its central region was mapped in CS(J = 2 {yields} 1 and J = 5 {yields} 4) with SEST, and in CS(J = 7 {yields} 6) and {sup 13}CO(J = 3 {yields} 2) with ASTE. Continuum emission mapped at 1.2 mm with SIMBA and at 0.87 mm with LABOCA reveal the presence of six compact and luminous dust clumps, making this source one of the most densely populated central regions of a GMC in the Galaxy. The dust clumps are associated with molecular gas and they have the following average properties: size of 1.6 pc, mass of 3.2 Multiplication-Sign 10{sup 3} M{sub Sun }, molecular hydrogen density of 3.7 Multiplication-Sign 10{sup 4} cm{sup -3}, dust temperature of 32 K, and integrated luminosity of 5.7 Multiplication-Sign 10{sup 5} L{sub Sun }, consistent with values found toward other massive star-forming dust clumps. The CS and {sup 13}CO spectra show the presence of two velocity components: a high-velocity component at {approx} - 89 km s{sup -1}, seen toward four of the clumps, and a low-velocity component at {approx} - 101 km s{sup -1} seen toward the other two clumps. Radio continuum emission is present toward four of the molecular clumps, with spectral index estimated for two of them of 0.8 {+-} 0.2 and 1.2 {+-} 0.2. A high-velocity molecular outflow is found at the center of the brightest clump, with a line width of 26 km s{sup -1} (FWHM) in CS(J = 7 {yields} 6). Observations of SiO(J = 7 {yields} 6 and J = 8 {yields} 7), and SO(J{sub K} = 8{sub 8} {yields} 7{sub 7} and J{sub K} = 8{sub 7} {yields} 7{sub 6}) lines provide estimates of the gas rotational temperature toward this outflow >120 K and >75 K, respectively.

Merello, Manuel; Bronfman, Leonardo; Garay, Guido [Departamento de Astronomia, Universidad de Chile, Casilla 36-D, Santiago (Chile); Nyman, Lars-Ake [Joint ALMA Observatory (JAO), Alonso de Cordova 3107, Vitacura, Santiago (Chile); Evans, Neal J. II [University of Texas at Austin, 1 University Station, Austin, TX 78712 (United States); Walmsley, C. Malcolm [Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, I-50125 Firenze (Italy)

2013-09-01

243

Cosmic Flow From Two Micron All-Sky Redshift Survey: the Origin of Cosmic Microwave Background Dipole and Implications for ?CDM Cosmology  

NASA Astrophysics Data System (ADS)

We generate the peculiar velocity field for the Two Micron All-Sky Redshift Survey (2MRS) catalog using an orbit-reconstruction algorithm. The reconstructed velocities of individual objects in 2MRS are well correlated with the peculiar velocities obtained from high-precision observed distances within 3000 km s-1. We estimate the mean matter density to be ?m = 0.31 ± 0.05 by comparing observed to reconstructed velocities in this volume. The reconstructed motion of the Local Group in the rest frame established by distances within 3000 km s-1 agrees with the observed motion and is generated by fluctuations within this volume, in agreement with observations. Having tested our method against observed distances, we reconstruct the velocity field of 2MRS in successively larger radii, to study the problem of convergence toward the cosmic microwave background (CMB) dipole. We find that less than half of the amplitude of the CMB dipole is generated within a volume enclosing the Hydra-Centaurus-Norma supercluster at around 40 h -1 Mpc. Although most of the amplitude of the CMB dipole seems to be recovered by 120 h -1 Mpc, the direction does not agree and hence we observe no convergence up to this scale. Due to dominant superclusters such as Shapley or Horologium-Reticulum in the southern hemisphere at scales above 120 h -1 Mpc, one might need to go well beyond 200 h -1 Mpc to fully recover the dipole vector. We develop a statistical model which allows us to estimate cosmological parameters from the reconstructed growth of convergence of the velocity of the Local Group toward the CMB dipole motion. For scales up to 60 h -1 Mpc, assuming a Local Group velocity of 627 km s-1, we estimate ?m h 2 = 0.11 ± 0.06 and ?8 = 0.9 ± 0.4, in agreement with WMAP5 measurements at the 1? level. However, for scales up to 100 h -1 Mpc, we obtain ?m h 2 = 0.08 ± 0.03 and ?8 = 1.0 ± 0.4, which agrees at the 1? to 2? level with WMAP5 results.

Lavaux, Guilhem; Tully, R. Brent; Mohayaee, Roya; Colombi, Stéphane

2010-01-01

244

Treatment with salicylic acid decreases the effect of cadmium on photosynthesis in maize plants.  

PubMed

The present study investigated the possible mediatory role of salicylic acid (SA) in protecting photosynthesis from cadmium (Cd) toxicity. Seeds of maize (Zea mays L., hybrid Norma) were sterilized and divided into two groups. Half of the seeds were presoaked in 500 microM SA solution for only 6h, after which both groups were allowed to germinate for 3d and were then grown for 14d in Hoagland solution at 22/18 degrees C in a 16/8-h light/dark period and 120 micromolm(-2)s(-1) PAR. All seedlings (without H(2)O and SA controls) were transferred to Cd-containing solutions (10, 15, and 25 microM) and grown for 14d. The rate of CO(2) fixation and the activity of ribulose 1,5-bisphosphate carboxylase (RuBPC, EC 4.1.1.39) and phosphoenolpyruvate carboxylase (PEPC, EC 4.1.1.31) were measured. Changes in the levels of several important parameters associated with oxidative stress, namely H(2)O(2) and proline production, lipid peroxidation, electrolyte leakage, and the activities of antioxidative enzymes (superoxide dismutase (SOD, EC 1.15.1.1), ascorbate peroxidase (APX, EC 1.11.1.11), catalase (CAT, EC 1.11.1.6), and guaiacol peroxidase (POD, EC 1.11.1.7)) were measured. Exposure of the plants to Cd caused a gradual decrease in the shoot and root dry weight accumulation, with the effect being most pronounced at 25 microM Cd. Seed pretreatment with SA alleviated the negative effect of Cd on plant growth parameters. The same tendency was observed for the chlorophyll level. The rate of CO(2) fixation was lower in Cd-treated plants, and the inhibition was partially overcome in SA-pretreated plants. A drop in the activities of RuBPC and PEPC was observed for Cd-treated plants. Pretreatment with SA alleviated the inhibitory effect of Cd on enzyme activity. Proline production and the rates of lipid peroxidation and electrolyte leakage increased in Cd-treated plants, whereas the values of these parameters were much lower in SA-pretreated plants. Treatment of plants with Cd decreased APX activity, but more than doubled SOD activity. Pretreatment with SA caused an increase in both APX and SOD activity, but caused a strong reduction in CAT activity. The data suggest that SA may protect cells against oxidative damage and photosynthesis against Cd toxicity. PMID:17913285

Krantev, Alexander; Yordanova, Rusina; Janda, Tibor; Szalai, Gabriella; Popova, Losanka

2008-06-16

245

The neutron star in HESS J1731-347: Central compact objects as laboratories to study the equation of state of superdense matter  

NASA Astrophysics Data System (ADS)

Context. Central compact objects (CCOs) in supernova remnants are isolated thermally emitting neutron stars (NSs). They are most probably characterized by a magnetic field strength that is roughly two orders of magnitude lower than that of most of the radio and accreting pulsars. The thermal emission of CCOs can be modeled to obtain constraints on the physical parameters of the star such as its mass, radius, effective temperature, and chemical composition. Aims: The CCO in HESS J1731-347 is one of the brightest objects in this class. Starting from 2007, it was observed several times with different X-ray satellites. Here we present our analysis of two new XMM-Newton observations of the source performed in 2013 which increase the total exposure time of the data available for spectral analysis by a factor of about five compared to the analyses presented before. Methods: We use our numerical spectral models for carbon and hydrogen atmospheres to fit the spectrum of the CCO. From our fits, we derive constraints on the physical parameters of the emitting star such as its mass, radius, distance, and effective temperature. We also use the new data to derive new upper limits on the source pulsations and to confirm the absence of a long-term flux and spectral variability. Results: The analysis shows that atmosphere models are clearly preferred by the fit over the blackbody spectral function. Under the assumption that the X-ray emission is uniformly produced by the entire star surface (supported by the lack of pulsations), hydrogen atmosphere models lead to uncomfortably large distances of the CCO, above 7-8 kpc. On the other hand, the carbon atmosphere model formally excludes distances above 5-6 kpc and is compatible with the source located in the Scutum-Crux (~3 kpc) or Norma-Cygnus (~4.5 kpc) Galactic spiral arm. We provide and discuss the corresponding confidence contours in the NS mass-radius plane. The measured effective temperature indicates that the NS is exceptionally hot for the estimated age of ~30 kyr. We discuss possible cooling scenarios to explain this property, as well as possible additional constraints on the star mass and radius from cooling theory.

Klochkov, D.; Suleimanov, V.; Pühlhofer, G.; Yakovlev, D. G.; Santangelo, A.; Werner, K.

2015-01-01

246

Effects of drug-carrier interactions on drug dissolution from binary and ternary matrices  

NASA Astrophysics Data System (ADS)

For nearly five decades, pharmaceutical researchers have studied solid solutions of drugs in polymers as a potential means to enhance the dissolution of drugs with poor aqueous solubility. This has become of greater importance in recent years because most new potential drug compounds (new chemical entities) exhibit poor water solubility and present great challenges to scientists who must design dosage forms from which the drugs are bioavailable. During the formulation of a solid solution, the drug undergoes physical but not chemical alterations that increase its chemical potential in the formulation relative to that of the pure drug in its stable form. This increased chemical potential is responsible for enhanced dissolution as well as physical instabilities, such as amorphous to crystalline conversions and precipitation within the solid state. The chemical potential is derived from the Gibbs free energy, so it is reasonable to explain the behavior of solid solution systems in terms of thermodynamics. Solid solutions and dispersions have been extensively studied by pharmaceutical scientists, both with regard to manufacturing aspects and the proposal of various models in attempts to explain the physical bases for how these systems work. Recently, Dave and Bellantone proposed a model based on the thermodynamic changes resulting from the formulation of binary solid solutions of a drug in the polymer PVP. Their model introduced a modification of the F-H theory, which was used to quantify the drug-polymer interaction energies and calculate the entropy of mixing of the drug and polymer. In this work, the model of Dave and Bellantone was extended to include three-component systems, consisting of one drug mixed in a carrier matrix consisting of mixture of two polymers or a polymer and a surfactant. For this research, solid solutions were formed using various drug weight fractions in the formulations. The study focused on the following points: (1) Prepare solid solution formulations and perform appropriate physical characterizations. (2) Characterize the increase in drug dissolution rates resulting from solid solution formulations. (3) Relate the initial dissolution rates to the drug solubility. (4) Explain the solubility enhancement from solid solution dosage in terms of the drug polymer interactions using the extended thermodynamic model. Two poorly water soluble drugs, levonorgestrel (LEVO) and ethinyl estradiol (EE) were formulated in seven solid solution preparations comprised of four carrier systems. Materials used as carriers included various combinations of the polymers PVP K-30, Copovidone (COP), Poloxamer 182, and the surfactant TweenRTM 20. Additionally, ibuprofen (IBU) was used in three formulations consisting of various combinations of PVP K-30, Copovidone and TweenRTM 20. Formulations with various drug weight fractions (0.5%--30%) were prepared using the solvent evaporation technique. Each formulation was tested for dissolution using intrinsic dissolution apparatus (USP). The solid solutions were compressed into tablets into the sample die that maintained a constant surface area during the dissolution process. DSC, XRD and NIRS scans identified that the crystalline peaks of the drug disappeared with the addition of the polymer for all ratios of EE, indicating the formation of solid solutions (to within the limits of detection of the equipment). This was also observed for the LEVO dispersions up to 10% drug loading. At higher drug loading, solutions were formed but some small degree crystallinity was also present. For each experiment, the initial dissolution rates were obtained from the slope of the mass dissolved vs. time plots taken at early times, and volume normalized initial dissolution rates RV were calculated by dividing the initial dissolution rate by the volume fraction of the drug in the formulation. Comparison of the RV values for the various formulations with a reference RV (typically that of the pure drug or of the formulation with the highest polymer content) allowed calculation of relative volume norma

Iqbal, Zafar

247

The gamma-ray pulsar PSR1706-44 and its associated SNR  

NASA Astrophysics Data System (ADS)

The Molonglo Observatory Synthesis Telescope discovered a faint supernova remnant associated with PSR 1706-44, one of only four gamma-ray pulsars. (Vela, the Crab and PSR 1509-58 also have an associated SNR.) The gamma-ray source was first discovered as 2CG342-02, the tenth strongest of 25 COS-B gamma-ray sources cataloged (Swanenburg et al., 1981, Astrophys. J. Lett. 243, L69). Low-resolution surveys show an extended (approximately 40 min x 25 min) source in the region with flux of approximately 25 Jy, suggesting a plerionic SNR (e.g. Jonas, de Jager and Baart, 1985, Astron. Astrophys. Suppl., 62, 105). A search for the gamma-ray source at 843 MHz with a resolution of 44 arcsec revealed a shell-type SNR--a half-ellipse with axes approximately 44 min x 32 min and low brightness of approximately 9 mJy per beam, giving Sigma843 = 3 x 10-21W m-2 Hz/sr (McAdam, Osborne and Parkinson, 1993, Nature, 361, 516). The Sigma-D relation suggests a diameter D approximately 34 pc at a distance of approximately 3 kpc in the Norma spiral arm of the Galaxy. It has a young (Sedov expansion) age of approximately 6000 years. The key linking the SNR and the gamma-ray source came (Kniffen et al., 1992, IAU Circ. 5485) when the Energetic Gamma Ray Experiment Telescope (EGRET) on the Compton Gamma Ray Observatory satellite detected pulsed gamma-radiation (Thompson et al., 1992, Nature, 359, 615) from the newly-discovered PSR 1706-44 (Johnston et al., 1992, Mon. Not. R. Astron. Soc. 255, 401). The pulsar position (epoch 1950) at RA = 17 hour 06 min 05.1 sec, delta = -44 deg 25 min 15.0 sec coincides in the MOST image with a 21 mJy source on the SE and of the SNR shell. The pulsar has a period of 102 ms and slows with characteristic age 17300 years. For it to move 18 min from centre to rim of the SNR shell in this time implies a proper motion of 0.06 sec/yr which is sufficiently large to check with VLBI astrometry. At the pusar dispersion distance (1.8 kpc), or the SNR distance of 3 kpc, the pulsar has apparently moved 10 or 16 pc at a transverse velocity of 540 or 900 km/s.

McAdam, Bruce

1994-04-01

248

PREFACE: The XI Mexican School on Particles and Fields  

NASA Astrophysics Data System (ADS)

The XI Mexican School on Particles and Fields took place on 2-13 August 2004, in the city of Xalapa, Veracruz, México. The School continued with the tradition of promoting High Energy Physics among the younger generation in Mexico. Thus, it was aimed specifically at graduate students and postdocs. The School consisted of several courses delivered by international experts on subjects of current interest to the scientific community. The length of each course was of six to eight hours, English being the language of instruction. A novelty in this edition of the School was its total duration (two weeks as opposed to one), the number of hours assigned to one subject, and the addition of some experimental courses for the students to overcome their inhibitions of a direct encounter with the equipment and its usage. There were also a few overview talks delivered by local experts on the current status of some of the research fields actively pursued in Mexico. The XI-MSPF was organized by the Particles and Fields Division of the Mexican Physical Society. It was generously sponsored by several institutions: Universidad de Veracruz, Universidad Nacional Autónoma de México, Universidad Michoacana de San Nicolás de Hidalgo, Centro de Investigaciones y Estudios Avanzados del IPN (CINVESTAV) and Consejo Nacional de Ciencia y Tecnología (CONACyT). We are very grateful to Dr Raúl Arias Lovillo, Dr Víctor Manuel Alcaráz Romero, Dr Asdrúbal Flóres López and Mtro Walter Saiz González, head of the Academic Secretariat, Director and Subdirector of the Office of Scientific Research and Director of the Division of Exact Sciences of the University of Veracruz, respectively, for their invaluable support in all senses to our Summer School. We also appreciate the important and useful assistance provided by Dr Rubén Bernardo Morante López, Director of the Museum of Anthropology of Xalapa, and Dr Héctor Coronel Brizio of the Secretariat of Education and Culture of the state of Veracruz. We acknowledge the help of our colleagues in the Organizing Committee: Norma Bagatella Flores (FFIA-U. Veracruzana), Heriberto Castilla Valdés (CINVESTAV-U. Zacatenco), Lorenzo Díz Cruz (FCFM-BUAP), Juan José Godina Nava (CINVESTAV-U. Zacatenco), Gerardo Herrera Corral (CINVESTAV-U. Zacatenco), German Mandujano Vallejo (FFIA-U. Veracruzana), Miguel Ángel Pérez Angón (CINVESTAV-U. Zacatenco), Efraín Rojas Marcial (FFIA-U. Veracruzana) and Carlos Vargas Madrazo (FFIA-U Veracruzana). Many thanks also to our Conference Secretaries Patricia Carranza and Soledad López for the efficiency with which they carried out their job and their dedication. Special thanks go to María Guadalupe Colorado Hernández and Javier Ignacio Fragoso Tizapan, whose help in carrying out the School was essential, without their collaboration this School would not have been the same. We take this opportunity to thank most warmly all the speakers for delivering excellent lectures which made this event a success. Moreover, to our utmost delight, the students participated very enthusiastically and we hope that this school will contribute considerably towards their academic development. The future of scientific endeavour always depends upon the students. Adnan Bashir (IFM-UMSNH) Jens Erler (IF-UNAM) Rául Hernández (FFIA-UV) Myriam Mondragón (IF-UNAM) Luis Villaseñor (IFM-UMSNH)

2005-01-01

249

Ant nebula  

NASA Technical Reports Server (NTRS)

A new Hubble Space Telescope image of a celestial object called the Ant Nebula may shed new light on the future demise of our Sun. The image is available at http://www.jpl.nasa.gov/pictures/wfpc .

The nebula, imaged on July 20, 1997, and June 30, 1998, by Hubble's Wide Field and Planetary Camera 2, was observed by Drs. Raghvendra Sahai and John Trauger of NASA's Jet Propulsion Laboratory, Pasadena, Calif.; Bruce Balick of the University of Washington in Seattle; and Vincent Icke of Leiden University in the Netherlands. JPL designed and built the camera.

The Ant Nebula, whose technical name is Mz3, resembles the head and thorax of an ant when observed with ground-based telescopes. The new Hubble image, with 10 times the resolution revealing 100 times more detail, shows the 'ant's' body as a pair of fiery lobes protruding from a dying, Sun- like star. The Ant Nebula is located between 3,000 and 6,000 light years from Earth in the southern constellation Norma.

The image challenges old ideas about what happens to dying stars. This observation, along with other pictures of various remnants of dying stars called planetary nebulae, shows that our Sun's fate will probably be much more interesting, complex and dramatic than astronomers previously believed.

Although the ejection of gas from the dying star in the Ant Nebula is violent, it does not show the chaos one might expect from an ordinary explosion, but instead shows symmetrical patterns. One possibility is that the central star has a closely orbiting companion whose gravitational tidal forces shape the outflowing gas. A second possibility is that as the dying star spins, its strong magnetic fields are wound up into complex shapes like spaghetti in an eggbeater. Electrically charged winds, much like those in our Sun's solar wind but millions of times denser and moving at speeds up to 1,000 kilometers per second (more than 600 miles per second) from the star, follow the twisted field lines on their way out into space.

The Space Telescope Science Institute, Baltimore, Md., manages space operations for the Hubble Space Telescope for NASA's Office of Space Science, Washington, D.C. The Institute is operated by the Association of Universities for Research in Astronomy, Inc., for NASA under contract with NASA's Goddard Space Flight Center, Greenbelt, Md. The Hubble Space Telescope is a project of international cooperation between NASA and the European Space Agency. JPL is a division of the California Institute of Technology in Pasadena.

Additional information about the Hubble Space Telescope is available at http://www.stsci.edu . More information about the Wide Field and Planetary Camera 2 is available at http://wfpc2.jpl.nasa.gov.

1999-01-01

250

Recommendations for the establishment of the seismic code of Haiti  

NASA Astrophysics Data System (ADS)

Haiti, because of his seismicity associated with plate boundary and several faults that cross the island of Hispaniola (Haiti-Dominican Republic), has been affected in the past by major earthquakes, which have caused loss of life and damage or considerable structural collapses (ex. 1771, 1842), sometimes the destruction of the cities. The recent earthquake of January 12, 2010, was the most destructive earthquake that any country has experienced in modern times, when we measure the number of people killed with respect to the population of a country (Cavallo et al. 2010). It's obvious that the major causes of theses losses are the lack of awareness of the population about the earthquakes, the absence of seismic code and quality control of the building. In this paper, we propose some recommendations for the establishment of the seismic code of Haiti in order to decrease physical and social impacts of earthquakes in the future. First of all, we present a theoretical part of concepts and fundamental elements to establish a seismic code, such as: description of the methodology for seismic hazard's assessment, presentation of the results in terms of acceleration maps for the whole country (in rock sites) and Uniform Hazard Spectrum (UHS) in the cities, and the criteria for soil classification and amplification factors for including site's effects, equivalent forces, etc. Then, we include a practical part where calculations and comparisons of five seismic codes of different countries (Eurocode 8, Spain, Canada, United States and Dominican Republic) are included, in order to have criteria for making the proposals for Haiti. Using the results of Benito et al (presented in this session S10) we compare the UHS in different cities of Haiti with the response spectrum derived from the application of the spectral shapes given by the aforementioned codes. Furthermore, the classification of soils and buildings have been also analyzed and contrasted with local data in order to propose the more suitable classification for Haiti. Finally, we have proposed a methodology for the forces estimation providing the values of the relevant coefficients. References: EN 1998-1:2004 (E): Eurocode 8, Design of structures for earthquake resistance, Part 1(General Rules, seismic actions and rules for buildings), 2004. -MTPTC, (2011). Règles de calcul intérimaires pour les bâtiments en Haïti, Ministère des Travaux Publics, Transports et Communications, Février 2011, Haïti. -NBCC 2005: National Building Code of Canada, vol1, National Research Council of Canada 2005. -NCSE-02: Norma de construcción sismorresistente de España. BOE num.244, Viernes 11 Octubre 2002. -NEHRP, 2009. Recommended Provisions for Seismic Regulations for new Buildings and Other Structures, FEMA P-750, February, Part 1 (Provisions) and Part 2 (Commentary). -R-001 (2011): Reglamento para el análisis y diseño sísmico de estructuras de República Dominicana. Decreto No. 201-11. Ministerio de Obras Públicas y Comunicaciones.

Pierristal, G.; Benito, B.; Cervera, J.; Belizaire, D.

2013-05-01

251

Study of Galactic clumps with millimeter / submillimeter continuum and molecular emission: Early stages of massive star formation  

NASA Astrophysics Data System (ADS)

Massive stars play a key role in the evolution of the Galaxy; hence they are important objects of study in astrophysics. Although they are rare compared to low mass stars, they are the principal source of heavy elements and UV radiation, affecting the process of formation of stars and planets, and the physical, chemical, and morphological structure of galaxies. Star clusters form in dense "clumps" (few parsecs in size) within giant molecular clouds, while individual stars form in cores (subparsec scale). An important step in the observational study of massive star formation is the identification and characterization of clumps. More detailed studies can then show how these clumps fragment into cores. Studies of clumps in our Galaxy will provide fundamental guidelines for the analysis of other galaxies, where individual clumps and cores cannot be resolved, and provide a catalog of interesting sources for observations of the Milky Way with a new generation of instruments, such as the Atacama Large Millimeter/Submillimeter Array. Large-scale blind surveys of the Galactic plane at millimeter and submillimeter wavelengths have recently been completed, allowing us to identify star forming clumps and improve our understanding of the early stages of massive stars. One of these studies, the Bolocam Galactic Plane Survey (BGPS), mapped the continuum emission at 1.1 mm over a large region of the northern Galactic plane at a resolution of 33", identifying 8559 compact sources throughout the Galaxy. In this dissertation, I present observations of a sample of sources from the BGPS catalog, obtained with the Submillimeter High Angular Resolution Camera II (SHARC-II). I present in this work 107 continuum emission maps at 350 μm at high angular resolution (8.500) toward clump-like sources and construct a catalog of BGPS substructures. I estimate clump properties such as temperatures and multiplicity of substructures, and compare my results with 350 ?m continuum maps from the Hi-GAL survey. I also present a detailed analysis, using molecular line and dust continuum observations, of the region G331.5-0.1, one of the most luminous regions of massive star formation in the Milky Way, located at the tangent region of the Norma spiral arm. Molecular line and millimeter continuum emission maps reveal the presence of six compact and luminous molecular clumps, with physical properties consistent with values found toward other massive star forming sources. This work includes the discovery of one of the most energetic and luminous molecular outflows known in the Galaxy, G331.512-0.103. For this high-speed outflow, I present ALMA observations that reveal a very compact, extremely young bipolar outflow and a more symmetric outflowing shocked shell surrounding a very small region of ionized gas. The source is one of the youngest examples of massive molecular outflows associated with the formation of a high-mass star.

Merello, Manuel Antonio

2014-09-01

252

Hydrochemistry of waters from five cenotes and evaluation of their suitability for drinking-water supplies, northeastern Yucatan, Mexico  

NASA Astrophysics Data System (ADS)

Waters from five cenotes that are currently being used for aquatic recreational activities and that lie along the Cancun-Tulum touristic corridor, Mexico, were evaluated hydrochemically to determine whether the cenotes may be considered as potential drinking-water sources. Several parameters exceed the Mexican Drinking Water Standards (MDWS), but since they do not pose a significant health threat, four of the five cenotes may be used as drinking-water sources. The common contaminants in the Yucatan Peninsula, fecal coliforms and nitrate, are in most cases below the MDWS (0-460 MPN/100ml and 0.31-1.18mg/L, respectively). Although these four cenotes meet the MDWS, a careful groundwater management policy needs to be developed to avoid contamination (fecal and nitrates) and salt-water intrusion. Résumé Les eaux de cinq cénotés, qui sont normalement utilisées pour des activités de plein air, dans la région touristique de Cancun-Tulum (Mexique), ont été soumises à analyses chimiques pour savoir si les cénotés peuvent être considérés comme des sources d'eau potable. Plusieurs paramètres dépassent les normes mexicaines en matière d'eau potable; mais comme ceux-ci ne posent pas de problème réel de santé, quatre des cinq cénotés peuvent être captés pour l'eau potable. Les contaminants habituels dans les eaux de la presqu'île du Yucatan, coliformes fécaux et concentrations élevées en nitrate, sont la plupart du temps au-dessous des normes (respectivement 0 à 460 germes/100ml et 0,31 à 1,18mg/l). Bien que ces quatre cénotés satisfassent aux normes, il est nécessaire de mettre en place des règles précises de l'utilisation de l'eau souterraine, afin d'éviter la contamination par les germes fécaux et par les nitrates, ainsi que l'intrusion marine. Resumen Se analizó hidroquímica y bacteriológicamente el agua de algunos cenotes localizados a lo largo del corredor turístico Cancun-Tulum, que actualmente se utilizan para diversas actividades recreativas, para determinar su potencial de uso como fuente de abastecimiento de agua potable. La mayor parte de los parámetros excedieron los criterios establecidos en la Norma Mexicana para Agua Potable (NMAP), sin embargo, como éstas no representan una riesgo para la salud, el agua de cuatro de los cinco cenotes puede ser emplada como fuente de abastecimiento de agua potable. Los contaminantes comúnes del agua subterránea de la península de Yucatán, coliformes fecales y nitratos, se encuentran en la mayoría de los casos por debajo de la NMAP (0-460 NMP/ 100ml y 0.31-1.18mg/l, respectivamente). A pesar de que estos cuatro cenotes cumplen con la NMAP, es necesario desarrollar una política de manejo adecuada del agua subterránea para evitar la contaminación de este recurso (fecal y por nitratos), así como la intrusión de agua salina.

Alcocer, Javier; Lugo, Alfonso; Marín, Luis E.; Escobar, Elva

253

Properties of Waste from Coal Gasification in Entrained Flow Reactors in the Aspect of Their Use in Mining Technology / W?a?ciwo?ci odpadów ze zgazowania w?gla w reaktorach dyspersyjnych w aspekcie ich wykorzystania w technologiach górniczych  

NASA Astrophysics Data System (ADS)

Most of the coal gasification plants based of one of the three main types of reactors: fixed bed, fluidized bed or entrained flow. In recent years, the last ones, which works as "slagging" reactors (due to the form of generated waste), are very popular among commercial installations. The article discusses the characteristics of the waste from coal gasification in entrained flow reactors, obtained from three foreign installations. The studies was conducted in terms of the possibilities of use these wastes in mining technologies, characteristic for Polish underground coal mines. The results were compared with the requirements of Polish Standards for the materials used in hydraulic backfill as well as suspension technology: solidification backfill and mixtures for gob caulking. Wi?kszo?? przemys?owych instalacji zgazowania w?gla pracuje w oparciu o jeden z trzech g?ównych typów reaktorów: ze z?o?em sta?ym, dyspersyjny lub fluidalny. W zale?no?ci od rodzaju reaktora oraz szczegó?owych rozwi?za? instalacji, powstaj?ce uboczne produkty zgazowania mog? mie? ró?n? posta?. Zale?y ona w du?ej mierze od stosunku temperatury pracy reaktora do temperatury topnienia cz??ci mineralnych zawartych w paliwie, czyli do temperatury mi?knienia i topnienia popio?u. W ostatnich latach bardzo du?? popularno?? w?ród instalacji komercyjnych zdobywaj? reaktory dyspersyjne "?u?luj?ce". W takich instalacjach ?u?el jest wychwytywany i studzony po wyp?yni?ciu z reaktora. W niektórych przypadkach oprócz ?u?la powstaje jeszcze popió? lotny, wychwytywany w systemach odprowadzania spalin. Mo?e by? on pozyskiwany oddzielnie lub te? zawracany do komory reaktora, gdzie ulega stopieniu. Wszystkie z analizowanych odpadów - trzy ?u?le oraz popió? pochodz? w?a?nie z tego typu instalacji. Tylko z jednej z nich pozyskano zarówno ?u?el jak i popió?, z pozosta?ych dwóch jedynie ?u?el. Odpady te powsta?y, jako uboczny produkt zgazowania w?gla lub w?gla z dodatkami: bitumin (?u?el S1), czy biomasy (popió? A2, ?u?el S2). W polskim górnictwie podziemnym wyró?ni? mo?na kilka technologii podsadzkowych, w których do transportu materia?u wykorzystywana jest woda. Tradycyjnie oraz ze wzgl?dów historycznych, terminem "podsadzka hydrauliczna" okre?la si? t?, która spe?nia wymagania normy PN-93/G-11010. Do najwa?niejszych cech takiej podsadzki hydraulicznej zaliczy? nale?y wype?nienia uprzednio wydzielonej pustki poeksploatacyjnej, materia?em o jak najmniejszej ?ci?liwo?ci oraz o jak najwi?kszej wodoprzepuszczalno?ci. Materia? taki, po odprowadzeniu wody ma stanowi? mechaniczna podpor? stropu, a proces podsadzania jest ?ci?le powi?zany z procesem eksploatacji, jako sposób likwidacji zrobów. Najcz??ciej stosowanymi materia?ami s? piasek podsadzkowy oraz odpady górnicze lub hutnicze (Lisowski, 1997). Od ponad dwudziestu lat, w polskim górnictwie w?gla kamiennego obecna jest równie? inna technologia podsadzkowa, w której do transportu materia?ów wykorzystywana jest woda. W tym przypadku cz??ci sta?e to materia?y drobnoziarniste, najcz??ciej popio?y ró?nych typów, które po wymieszaniu z wod? tworz? zawiesin? (st?d termin "zawiesiny popio?owo-wodne"). Polska norma PN-G-11011:1998 wyró?nia dwie odmiany takich zawiesin i definiuje je, jako "podsadzk? zestalan?" oraz "mieszanin? do doszczelniania zrobów". Podstawow? ide? przy?wiecaj?c? stosowaniu zawiesin drobnoziarnistych w technologiach górniczych by?a pocz?tkowo troska o zagospodarowaniu odpadów energetycznych, a nast?pnie górniczych (Mazurkiewicz i in., 1998; Piotrowski i in., 2006; Piotrowski, 2010; Plewa i Mys?ek, 2000; Plewa i Sobota, 2002). Obecnie technologia zawiesinowa na sta?e zago?ci?a w kopalniach w?gla kamiennego staj?c si? m.in. nieodzownym ?rodkiem profilaktyki po?arowej i metanowej (Dziurzy?ski i Pomyka?a, 2006; Palarski, 2004; Pomyka?a, 2006). W artykule przedstawiono analiz? mo?liwo?ci wy

Pomyka?a, Rados?aw

2013-06-01