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1

Priberam's question answering system for Carlos Amaral, Helena Figueira,  

E-print Network

Priberam's question answering system for Portuguese Carlos Amaral, Helena Figueira, Andr´e Martins, Afonso Mendes, Pedro Mendes, Cl´audia Pinto Priberam Inform´atica Av. Defensores de Chaves, 32 - 3o Esq

Xing, Eric P.

2

Sleep Mode Analysis via Workload Decomposition Amar Prakash Azad  

E-print Network

1 Sleep Mode Analysis via Workload Decomposition Amar Prakash Azad Abstract The goal of this paper is applied to the problem of power saving for mobile devices in which the sleep durations of a device. INTRODUCTION Power save/sleep mode operation is the key point for energy efficient usage of mobile devices

Paris-Sud XI, Université de

3

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

4

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

5

Maria Adelaide Amaral ou a Crise da Classe Mdia Brasileira  

E-print Network

as maisculas permitem ultrapassar o limite do privado, romper com a imagem do amor cor de rosa ou dos anncios publicitrios que se valem da famlia feliz para vender carros. A obra entra nas lutas internas do poder, nas pequenas ou grandes maldades, nas... social externo? Adelaide Amaral desenvolve sua produo na interseo entre o pblico e o privado, e talvez seja esta a razo do seu xito.2 A sociedade brasileira sente e ressente a fragmentao e a globalizao do estgio atual do sistema capitalista...

Ravetti, Graciela; Rojo, Sara

1996-10-01

6

Normas de conducta y de actividades politicas  

E-print Network

Normas de conducta y de actividades politicas Revised 5/2008 Instrucciones Para obtener información Services, mail code J5600). § 572.051. Normas de conducta Un oficial o un empleado del estado no debe de: 1 influenciar su conducta oficial; 2. aceptar otro empleo o comprometerse en una actividad profesional o

Hofmann, Hans A.

7

E-Interview: Norma Fox Mazer.  

ERIC Educational Resources Information Center

Presents an interview with Norma Fox Mazer, a writer of children's books. Describes how she creates a story. Discusses how writing a story, whether a short story or a novel, is an intricate balance of character, event, and voice. (SG)

Angel, Ann

2001-01-01

8

Field-free particle focusing in microfluidic plugs G. K. Kurup and Amar S. Basu  

E-print Network

generally require external electric or magnetic fields together with charged or magnetized particles is useful for concentrating/collecting particles, while the latter two are useful for mixing the beadsField-free particle focusing in microfluidic plugs G. K. Kurup and Amar S. Basu Citation

Basu, Amar S.

9

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

Prez-Leroux, Ana T.

2014-01-01

10

Omnivorous Representation Might Lead to Indigestion: Commentary on Amaral and Roeper  

ERIC Educational Resources Information Center

This article offers commentary that the Multiple Grammar (MG) language acquisition theory proposed by Luiz Amaral and Tom Roeper (A&R) in the present issue lacks elaboration of the psychological mechanisms at work in second language acquisition. Topics discussed include optionality in a speaker's grammar and the rules of verb position in

Slabakova, Roumyana

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

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

13

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

14

aZIMAs almost Zero Infrastructure Mobile Agent System Amar Nalla, Abdelsalam (Sumi) Helal and Vidya Renganarayanan  

E-print Network

aZIMAs ­ almost Zero Infrastructure Mobile Agent System Amar Nalla, Abdelsalam (Sumi) Helal, Gainesville, FL 32611-6120, USA helal@cise.ufl.edu Abstract Mobile agents promise to bring in a new era in the field of World Wide Web and Internet Computing. Although mobile agents have been around for sometime

Helal, Abdelsalam

15

V390 Nor = Nova Normae 2007  

NASA Astrophysics Data System (ADS)

Nova Normae 2007 was discovered photographically by William Liller on June 15.086 UT at magnitude 9.4. Precise position measured by G. Bolt from his unfiltered CCD image of June 16.7 UT: 16:32:11.51 -45:09:13.4 (2000.0). Giorgio Di Scala reported to the AAVSO that a low-resolution spectrum indicates a nova a week or so after outburst, with strong H-alpha emission. E. Kazarovets, Sternberg Astronomical Institute, reports that N Nor 07 has been assigned the name V390 Nor. Discovery originally announced in IAU Central Bureau Electronic Telegram 982 (Daniel W. E. Green) and AAVSO Special Notice #49 (Arne Henden). Information in this Alert Notice was received at AAVSO from William Liller, Giorgio Di Scala, or via IAU Circular No. 8850, ed. Daniel W. E. Green. A chart for V390 Nor is available via the Variable Star Plotter (VSP). Go to: http://www.aavso.org/observing/charts/vsp/ and enter the name V390 NOR.

Waagen, Elizabeth O.

2007-06-01

16

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

An Electrochemical Color-Switchable RGB Dye: Tristable [2]Catenane Wei-Qiao Deng, Amar H. Flood, J for the implementation of an E-PAD. Based on the general design (Figure 1b) a number of require- ments need

Goddard III, William A.

17

Optimal Control of Sleep periods for Wireless terminals Amar Prakash Azad, Sara Alouf, Eitan Altman, Vivek Borkar and Georgios S. Paschos  

E-print Network

1 Optimal Control of Sleep periods for Wireless terminals Amar Prakash Azad, Sara Alouf, Eitan, and we try to answer the fundamental question: what is the optimal sleep policy? Firstly, we study the mobile is sleeping and also a cost for waking up. We show that constant sleep periods are optimal

Paris-Sud XI, Université de

18

NuSTAR Observations of the Norma Arm Region  

NASA Astrophysics Data System (ADS)

One of the Galactic regions being surveyed by NuSTAR covers a 2 degree x 0.8 degree region of the Norma Arm that was observed with Chandra in 2011. This region was selected because its recent star formation and large number of OB associations make it a good place 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). For the vast majority of sources in this region, the Chandra data are insufficient for constraining their individual spectral parameters and identifying their physical nature, but combining NuSTAR and Chandra data provides strong constraints on their X-ray properties. Roughly a third of the area surveyed by Chandra has been observed with NuSTAR to date, and we present preliminary results identifying the hard X-ray sources observed by both telescopes. We have obtained near-infrared spectra of the counterparts of some of these X-ray sources, which also facilitate their identifications. Although our analysis is ongoing, a significant fraction of sources appear to be intermediate polars, some are likely CWBs and HMXBs, and one may be a black hole binary.

Fornasini, Francesca; Tomsick, John; Bodaghee, Arash; Krivonos, Roman; Rahoui, Farid; Bauer, Franz E.; Corral-Santana, Jesus; Stern, Daniel

2014-08-01

19

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

NASA Astrophysics Data System (ADS)

We present a catalog of 1415 X-ray sources identified in the Norma Arm Region Chandra Survey (NARCS), which covers a 2 0.8 region in the direction of the Norma spiral arm to a depth of ?20 ks. Of these sources, 1130 are point-like sources detected with >=3? 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 ~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 and near Norma arm, while 30% are more distant, in the proximity of the far Norma arm or beyond. We argue that a mixture of magnetic and nonmagnetic cataclysmic variables dominates the Scutum-Crux and near Norma arms, while intermediate polars and high-mass stars (isolated or in binaries) dominate the far Norma arm. We also present the cumulative number count distribution for sources in our survey that are detected in the hard energy band. A population of very hard sources in the vicinity of the far Norma arm and active galactic nuclei dominate the hard X-ray emission down to fX ? 10-14 erg cm-2 s-1, but the distribution curve flattens at fainter fluxes. We find good agreement between the observed distribution and predictions based on other surveys.

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

2014-12-01

20

Ric and Dawn Duques Hall & Norma Lee and Morton Funger Hall ABOUT THE DUQUES FAMILY  

E-print Network

Ric and Dawn Duques Hall & Norma Lee and Morton Funger Hall Fact Sheet ABOUT THE DUQUES FAMILY In May 2002, Ric Duques, and his wife Dawn, pledged to donate $5 million to name the new home of the GW School of Business, the "Ric and Dawn Duques Hall." Ric Duques is the CEO of First Data Corporation

Vertes, Akos

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

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

23

Peculiar velocities in the Zone of Avoidance: Determining the Distance to the Norma cluster  

E-print Network

Deep J, H and Ks photometry of the low Galactic latitude Norma cluster has been obtained with the 1.4-m Infrared Survey Facility (IRSF) and with SOFI on the NTT. Together with spectroscopy taken at the Anglo-Australian Observatory using 2dF, the near-infrared Fundamental Plane of the Norma cluster will be used to determine the distance to this cluster and to assess its location within the Great Attractor overdensity. Potential systematic uncertainties related to the determination of peculiar velocities in the Zone of Avoidance are discussed in some detail. In particular the effects (uncertainties, systematics and scatter) of extinction and star-crowding on the derived magnitudes at low latitudes are investigated in great detail. We present a first look at the emerging Ks-band Fundamental Plane of the Norma cluster. We expect an uncertainty of ~ 3% (~ 150 km/s at the distance of the Norma cluster) in our final Fundamental Plane distance estimate based on 76 galaxies.

Woudt, P A; Kraan-Korteweg, R C; Lucey, J; Schrder, A; Burstein, D; McCall, M L

2004-01-01

24

Peculiar velocities in the Zone of Avoidance: Determining the Distance to the Norma cluster  

E-print Network

Deep J, H and Ks photometry of the low Galactic latitude Norma cluster has been obtained with the 1.4-m Infrared Survey Facility (IRSF) and with SOFI on the NTT. Together with spectroscopy taken at the Anglo-Australian Observatory using 2dF, the near-infrared Fundamental Plane of the Norma cluster will be used to determine the distance to this cluster and to assess its location within the Great Attractor overdensity. Potential systematic uncertainties related to the determination of peculiar velocities in the Zone of Avoidance are discussed in some detail. In particular the effects (uncertainties, systematics and scatter) of extinction and star-crowding on the derived magnitudes at low latitudes are investigated in great detail. We present a first look at the emerging Ks-band Fundamental Plane of the Norma cluster. We expect an uncertainty of ~ 3% (~ 150 km/s at the distance of the Norma cluster) in our final Fundamental Plane distance estimate based on 76 galaxies.

P. A. Woudt; A. P. Fairall; R. C. Kraan-Korteweg; J. Lucey; A. C. Schroeder; D. Burstein; M. L. McCall

2004-10-29

25

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

26

Developing Urban Community Garden Projects1 Austen Moore, Amy Harder, and Norma Samuel2  

E-print Network

, think about needs and/or benefits of com- munity gardens for different areas. Not all communities need their needs are or how a community garden would benefit them. Thinking this through will help you betterWC139 Developing Urban Community Garden Projects1 Austen Moore, Amy Harder, and Norma Samuel2 1

Jawitz, James W.

27

Gender and Development. Agendas and cultural impasses Norma Fuller Ph. D  

E-print Network

Gender and Development. Agendas and cultural impasses Norma Fuller Ph. D This course examines the emergence, in the 1970s, of the field of Gender and Development; its research agenda and theoretical Objectives: 1. To introduce the students to the theory and practice of gender and development. 2. To reflect

Martin, Jeff

28

Initial Results from NuSTAR Observations of the Norma Arm  

NASA Astrophysics Data System (ADS)

Results are presented for an initial survey of the Norma Arm gathered with the focusing hard X-Ray Telescope NuSTAR. The survey covers 0.2 deg2 of sky area in the 3-79 keV range with a minimum and maximum raw depth of 15 ks and 135 ks, respectively. Besides a bright black-hole X-ray binary in outburst (4U 1630-47) and a new X-ray transient (NuSTAR J163433-473841), NuSTAR locates three sources from the Chandra survey of this region whose spectra are extended above 10 keV for the first time: CXOU J163329.5-473332, CXOU J163350.9-474638, and CXOU J163355.1-473804. Imaging, timing, and spectral data from a broad X-ray range (0.3-79 keV) are analyzed and interpreted with the aim of classifying these objects. CXOU J163329.5-473332 is either a cataclysmic variable or a faint low-mass X-ray binary. CXOU J163350.9-474638 varies in intensity on year-long timescales, and with no multi-wavelength counterpart, it could be a distant X-ray binary or possibly a magnetar. CXOU J163355.1-473804 features a helium-like iron line at 6.7 keV and is classified as a nearby cataclysmic variable. Additional surveys are planned for the Norma Arm and Galactic Center, and those NuSTAR observations will benefit from the lessons learned during this pilot study.

Bodaghee, Arash; Tomsick, John A.; Krivonos, Roman; Stern, Daniel; Bauer, Franz E.; Fornasini, Francesca M.; Barrire, Nicolas; Boggs, Steven E.; Christensen, Finn E.; Craig, William W.; Gotthelf, Eric V.; Hailey, Charles J.; Harrison, Fiona A.; Hong, Jaesub; Mori, Kaya; Zhang, William W.

2014-08-01

29

Etnografa acelerada para transformar normas sociales sobre gnero y sexualidad en hombres puertorriqueos heterosexuales1,2  

PubMed Central

Resumen La construccin de roles de gnero dominantes contribuyen al riesgo de contraer VIH, y por tal razn se ha urgido a que se integren las normas sociales relativas al gnero en las intervenciones preventivas del VIH. Este estudio pretende adaptar y desarrollar una intervencin que facilite la transformacin de normas sociales del gnero y de prcticas sexuales en hombres puertorriqueos. La intervencin propone transformar normas sociales relacionadas al gnero y sexualidad en barras comunitarias utilizando el modelo de lderes de opinin. Luego de ser elegidos/as, los/as lderes de opinin diseminan mensajes integrando la importancia de relaciones equitativas entre parejas para la prevencin del VIH. La primera fase de esta intervencin es discutida en este artculo, la cual incluye un proceso de etnografa acelerada para identificar los escenarios comunitarios en los que podemos desarrollar esta intervencin y permitirnos entender la cultura de las barras comunitarias. A partir de las observaciones etnogrficas, pudimos: desarrollar un protocolo de seguridad para realizar las observaciones, desarrollar un perfil de la cultura de las barras, elegir las barras a participar en las dos condiciones del estudio y adaptar los instrumentos de la intervencin para que respondieran a la particularidad de los/as participantes. PMID:25530828

Ortiz-Torres, Blanca; Rivera-Ortiz, Rafael J.; Mendoza, Sigrid

2014-01-01

30

Cranial vault shape in fossil hominids: Fourier descriptors in norma lateralis.  

PubMed

Two major views of human evolution have elicited considerable controversy. These are: [1] the "out of Africa" hypothesis and [2] the "multiregional" hypothesis. This paper is an attempt to try to reconcile these two scenarios using hominid cranial vault data. Elliptical Fourier functions (EFFs) were used to describe, in visual and numerical terms, the shape of the human cranial vault in norma lateralis. Using jpeg images, contours of the cranial vault of a large sample of hominid specimens were pre-processed in Photoshop CS and rotated in 2D space (positional-orientation) so that a line drawn from nasion to porion was horizontal. The cranial vault image was then digitized with 72 closely-spaced points and submitted to a specially written routine that computed EFFs normalized by scaling (size-standardization). This ensured that the representation was invariant with respect to starting point, size and orientation. Statistically significant differences were found between the H. sapiens sample and both the H. erectus and H. neanderthalensis samples. In contrast, there were no statistically significant differences between the H. erectus and H. neanderthalensis groups, leading to three conclusions: [1] the similarity in cranial vault shape between H. erectus and H. neanderthalensis suggests a single gradually evolving lineage; [2] The taxon H. heidelbergensis can be embedded into the H. erectus?H. neanderthalensis line; and [3] H. sapiens seems to be a separate evolutionary development and is considered here either as a separate species or as a possible example of an allopatric semispecies (Grant, 1977). The results here suggest that human evolution over the last 2 Ma may turn out to be neither totally multiregional or simply out of Africa but rather represents a considerably more complicated picture. PMID:20801442

Lestrel, P E; Ohtsuki, F; Wolfe, C A

2010-10-01

31

Initial results from NuSTAR observations of the Norma Arm  

NASA Astrophysics Data System (ADS)

Results are presented for an initial survey of the Norma Arm gathered with the focusing hard X-ray telescope NuSTAR. The survey covers 0.2 degrees-squared of sky area in the 3--79 keV range with a minimum and maximum raw exposure time of 15 ks and 135 ks, respectively. Besides a bright black-hole X-ray binary in outburst (4U 1630-47) and a new X-ray transient (NuSTAR J163433-473841), NuSTAR locates three sources from the Chandra survey of this region whose spectra are extended above 10 keV for the first time. Imaging, timing, and spectral data from a broad X-ray range (0.3--79 keV) are analyzed and interpreted with the aim of classifying these objects. CXOU J163329.5-473332 is either a cataclysmic variable or a faint low-mass X-ray binary. CXOU J163350.9-474638 varies in intensity on year-long timescales, and with no multi-wavelength counterpart, it could be a magnetar. CXOU J163355.1-473804 features a helium-like iron line at 6.7 keV and is classified as a nearby cataclysmic variable. We close by discussing some challenges inherent in imaging crowded regions with NuSTAR, and how the lessons learned in this pilot study can help scientists who wish to use NuSTAR to observe their favorite targets.

Bodaghee, Arash; Tomsick, John; Krivonos, Roman; Stern, Daniel; Bauer, Franz E.; Fornasini, Francesca; Barrire, Nicolas M; Boggs, Steven E.; Christensen, Finn; Craig, William W.; Gotthelf, Eric V.; Hailey, Charles James; Harrison, Fiona; Hong, JaeSub; Mori, Kaya; Zhang, William

2014-08-01

32

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

33

The Norma cluster (ACO 3627) - III. The distance and peculiar velocity via the near-infrared Ks-band Fundamental Plane  

NASA Astrophysics Data System (ADS)

While Norma (ACO 3627) is the richest cluster in the Great Attractor (GA) region, its role in the local dynamics is poorly understood. The Norma cluster has a mean redshift (zCMB) of 0.0165 and has been proposed as the `core' of the GA. We have used the Ks-band Fundamental Plane (FP) to measure Norma cluster's distance with respect to the Coma cluster. We report FP photometry parameters (effective radii and surface brightnesses), derived from ESO New Technology Telescope Son of ISAAC images, and velocity dispersions, from Anglo-Australian Telescope 2dF spectroscopy, for 31 early-type galaxies in the cluster. For the Coma cluster we use Two Micron All Sky Survey images and Sloan Digital Sky Survey velocity dispersion measurements for 121 early-type galaxies to generate the calibrating FP data set. For the combined Norma-Coma sample we measure FP coefficients of a = 1.465 0.059 and b = 0.326 0.020. We find an rms scatter, in log ?, of 0.08 dex which corresponds to a distance uncertainty of 28 per cent per galaxy. The zero-point offset between Norma's and Coma's FPs is 0.154 0.014 dex. Assuming that the Coma cluster is at rest with respect to the cosmic microwave background frame and zCMB(Coma) = 0.0240, we derive a distance to the Norma cluster of 5026 160 km s-1, and the derived peculiar velocity is -72 170 km s-1, i.e. consistent with zero. This is lower than previously reported positive peculiar velocities for clusters/groups/galaxies in the GA region and hence the Norma cluster may indeed represent the GA's `core'.

Mutabazi, T.; Blyth, S. L.; Woudt, P. A.; Lucey, J. R.; Jarrett, T. H.; Bilicki, M.; Schrder, A. C.; Moore, S. A. W.

2014-04-01

34

Recurrent Nova IM Normae  

E-print Network

We detected the second historical outburst of the 1920 nova IM Nor. Accurate astrometry of the outbursting object revealed the true quiescent counterpart having a magnitude of R=17.0 mag and B=18.0 mag. We show that the quiescent counterpart shows a noticeable variation. From the comparison of light curves and spectroscopic signatures, we propose that IM Nor and CI Aql comprise a new class of recurrent novae bearing some characteristics similar to those of classical novae. We interpret that the noticeable quiescent variation can be a result of either high orbital inclination, which may be also responsible for the low quiescent brightness, or the presence of high/low states. If the second possibility is confirmed by future observations, IM Nor becomes the first recurrent nova showing state changes in quiescence. Such state changes may provide a missing link between recurrent novae and supersoft X-ray sources.

T. Kato; H. Yamaoka; W. Liller; B. Monard

2002-04-20

35

LZW Based Compressed Pattern Matching Tao Tao, Amar Mukherjee  

E-print Network

with minimal (or no) decompression. In this paper, we report our work on compressed pattern matching in LZW initial decompression. Another fundamental problem is to develop search-aware compression algorithms) S and a pattern string (or a sub-image) P, report the occurrences of P in S with minimal (or no) decompression

Mukherjee, Amar

36

Photometry of a Galactic Field at l=232, b=-6: The Old Open Cluster Auner 1, the Norma-Cygnus Spiral Arm, and the Signature of the Warped Galactic Thick Disk  

NASA Astrophysics Data System (ADS)

We perform a detailed photometric study of the stellar populations in a Galactic field at l=232deg, b=-6deg in the Canis Major (CMa) constellation. We present the first U, B, V, I photometry of the old open cluster Auner 1 and determine it to be ~3.25 Gyr old and to lie 8.9 kpc from the Sun. In the background of the cluster, at more than 9 kpc, we detect a young population most likely associated with the Norma-Cygnus spiral arm. Furthermore, we detect the signature of an older population and identify its turnoff and red giant branch. This population is found to have a mean age of 7 Gyr and a mean metallicity of Z=0.006. We reconstruct the geometry of the stellar distribution and argue that this older population, often associated with the CMa ``galaxy,'' in fact belongs to the warped old thin- and thick-disk components along this line of sight.

Carraro, Giovanni; Moitinho, Andr; Zoccali, Manuela; Vzquez, Ruben A.; Baume, Gustavo

2007-03-01

37

ANA TERESA FREITAS Fora da norma  

E-print Network

Tecnologia, o desenvolvimento de um chip de DNA - para analisar vários genes em simultâneo -, aplicado ao, doutorada em Biotecnologia) montou uma empresa, a Heartgenetics, para explorar a tecnologia desenvolvida. O grande impacto na Medicina, que já está a ser vendido para vários países. #12;

Instituto de Sistemas e Robotica

38

UN MATRIMONIO CONVENIENTE: DISEO DE INVESTIGACIN CUALITATIVA Y ESTNDARES PARA LA EVALUACIN DE PROGRAMAS (*)  

Microsoft Academic Search

This article provide a qualitative researcher's perspective on the 1993 Program Evaluation Standards. These new Standards are of critical importance for evaluators because they establish agreed- upons for proper behavior within the evaluation community. Three aspects of the Standards are most salient to qualitative researchers: the concern for the human aspects of evaluation; issues of validity and meaning; and a

Margaret D. LeCompte

39

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

E-print Network

of the magnetic field, and to the en- ergy density of the propagating electromagnetic waves [1]. The ICME to a magnetic field paral- lel to the [0,0,1] direction provided by an electromagnet. The field values were Toulouse, France # Permanent address : NRCN, P.O.Box 9001, Beer-Sheva 84190, Israel Corresponding author

40

Chy 475--Spring 2009 Angular momentum in quantum mechanics Dr. F. Amar  

E-print Network

and ! r p: ! Lx = (ypz " zpy ) # ^Lx = (y^pz " z^py ) = "ih(y $ $z " z $ $y ) Ly = (zpx " xpz ) # ^Ly = (z^px " x^pz ) = "ih(z $ $x " x $ $z ) Lz = (xpy " ypx ) # ^Lz = (x^py " y^px ) = "ih(x $ $y " y $ $x ) Here momentum and the derivatives with respect to and : ! ^Lz = "ih # #$ ; ^Lx = ih(sin$ # #% + cot

Amar, François G.

41

Norma A. Aguilar Phone:(760) 768-5637  

E-print Network

a scholarship that covers registration fees. Qualified partici- pants can also receive a book stipend prepares you for law school. Psychology Major The Psychology Major is a broad based discipline Justice Administration Liberal Studies Psychology The SDSU-Imperial Valley Campus is a community

Ponce, V. Miguel

42

CENTERFORTHESTUDYOFIMMIGRANTINTEGRATION By Norma Stoltz Chinchilla and Nora Hamilton  

E-print Network

with ancestry from Central America. The term was initiated by Maya Chinchilla in a poem "Central American to these conflicts, and entered a country that rejected their claims to official refugee status. At formative periods

Rohs, Remo

43

Biblioteca del Congreso Nacional Identificacin de la Norma : DFL-1  

E-print Network

, instrumentos, aparatos, equipos, artefactos y materiales elctricos de toda naturaleza y las condiciones de calidad y seguridad de los instrumentos destinados a registrar el consumo o transferencia de energa

Rudnick, Hugh

44

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

45

Blind source separation for ambulatory sleep recording Fabienne Pore, Amar Kachenoura, Herv Gauvrit, Catherine Morvan, Guy Carrault,  

E-print Network

]. This "gold standard", whose demand has doubled between 1991 and 1994 in some regions of the United States [5 is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein a high prevalence estimated at 2% in women and 4% in men between the ages of 30 and 60 years [1] [2

Paris-Sud XI, Universit de

46

Resistencia al matrimonio desde la novela de las novelistas espanolas del periodo de la Restauracion: La Mujer Nueva vs. el angel del hogar  

Microsoft Academic Search

Marriage in the nineteenth century is used to create a new order, a new society that controls women, their behavior, and their education, so that they stay outside the public sphere, the male domain. The study of marriage in the nineteenth century Spanish novel will illuminate how literature served to support the vision of the Spanish State. This dissertation shows

Conchita Espino-Bravo

2005-01-01

47

REGULACIONES Y NORMAS EN LO PBLICO Y LO COLECTIVO: EXPLORACIONES DESDE EL LABORATORIO ECONMICO  

Microsoft Academic Search

La internalizacin de las externalidades de grupo derivadas del dilema entre el inters individual y el inters social requieren el diseo de instituciones a travs del mercado, el estado o de formas auto-gobernadas que generen en los agentes un cambio en los incentivos pecuniarios o no materiales que los lleven a tomar decisiones que sean socialmente deseables. El enfoque econmico

Juan Camilo Crdenas

2004-01-01

48

Mandibular shape analysis in fossil hominins: Fourier descriptors in norma lateralis.  

PubMed

Biological shape can be defined as the boundary of a form in 2-space (R(2)). An earlier study (Lestrel et al., 2010, HOMO-J. Comp. Hum. Biol.) of the cranial vault found that there were statistically significant differences between each of the three groups: H. erectus, H. heidelbergensis, and H. neanderthalensis compared with H. sapiens. In contrast, there was no statistically significant difference among the first three groups. These results suggest that these three groups may have formed single evolving lineage while H. sapiens represents a separate evolutionary development. The purpose of the current research was to discern if the mandible reflected a similar pattern as the cranial vault data. This study used lateral jpeg images of the mandible. Five fossil samples were used: A. robustus (n=7), H. erectus (n=12), H. heidelbergensis (n=4), H. neanderthalensis (n=22) and H. sapiens (n=61). Each mandible image was pre-processed with Photoshop Elements. Each image was then submitted to a specially written routine that digitized the 84 points along the mandible boundary. Each mandible was fitted with elliptical Fourier functions (EFFs). Procrustes superimposition was imposed to insure minimum shape differences. The mandible results largely mirrored the earlier cranial vault study with one exception. Statistically significant results were obtained for the mandible between the H. erectus and H. neanderthalensis samples in contrast to the earlier cranial vault data. F-tests disclosed that the statistical significance was limited to the anterior symphysis of the mandible. This mosaic pattern may be explained by the reduction in prognathism with the concomitant if rudimentary development of the chin as seen in H. neanderthalensis compared to H. erectus. PMID:23769600

Lestrel, P E; Wolfe, C A; Bodt, A

2013-08-01

49

Normas, justia, atribuio e poder: uma reviso e agenda de pesquisa sobre filas de espera  

Microsoft Academic Search

Norms, justice, attribution and power: a revision and research agenda about waiting lines. Considering waiting lines as social systems, a short analysis of the nature and types of queues is presented. Four themes of social psychology are used to analyze behavior in waiting lines: (a) social norms and social influence, (b) distributive, procedural and interactional justice, (c) causal attribution, and

Fabio Iglesias; Hartmut Gnther

2007-01-01

50

School of Psychology, QUB Dr. Ruth Lowry & Dr. Norma Rainey -1 -Updated September 2008  

E-print Network

. Chicago: used with all subjects in the "real world" by books, magazines, newspapers, and other non polo was similar playing golf in an earthquake. Playing polo could be equated to playing golf in an earthquake (Stallone, 1990). Two authors Smith and Jones (2005)... ...(Smith & Jones, 2005) Three to five

Müller, Jens-Dominik

51

Mmmmm: A Multi-modal Mobile Music Mixer Norma Saiph Savage  

E-print Network

and have the mixed audio stream to Bluetooth speakers, which allows the DJ to move about the environment sensor and Bluetooth audio streaming capabilities to mix and apply ef- fects to music using hand gestures

California at Santa Barbara, University of

52

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

53

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

E-print Network

neurodevelopmental disorders such as autism and schizophrenia are thought to arise partly because of faulty of research at the MIND (Medical Investigation of Neurodevelopmental Disorders) Institute at the Uni- versity Joel Kleinman at the National Institute of Mental Health (NIMH

Nguyen, Danh

54

Normas provisionais para a instrucin e resolucin dos expedientes disciplinarios abertos a estudantes da UDC (aprobadas no Consello de  

E-print Network

ámbitos da actividade administrativa das Universidades onde a inseguridade xurídica é maior é no campo do procedemento disciplinario dos estudantes. Ainda hoxe, trinta e tres anos despois da aprobación da Constitución ano1 . Entrementres, a tipificación de infraccións e sancións, así como a tramitación dos expedientes

Fraguela, Basilio B.

55

Interplanetary Space Weather and Its Planetary Connection Norma Crosby, Volker Bothmer, Rainer Facius, Jean-Mathias Griemeier, Xenophon Moussas, Mikhail  

E-print Network

be the predecessor for any further human interplanetary mission, especially one to Mars. Only several days away from as realistic as when our ancestors started to cross the oceans. With curiosity driving humans to visit other is to establish a first Mars colony within the next decades. For this type of scenario it is now timely to address

Mendillo, Michael

56

Perceptually-Motivated Modeling of Noise in Pathological Voices Brian Gabelman*, Jody Kreiman*, Bruce R. Gerratt*, Norma Antonanzas-Barroso*,  

E-print Network

the periodic component of the signal. The vocal tract response component was removed by a high-pass Iifier, and an FFT was then petiormed on the residual signal. This FFT resulted in an estimate of the noise spectrum. Note that this technique separates periodic from aperiodic components of the signal, but does

Alwan, Abeer

57

"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

58

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

earlier this week with entomologist Douglas Emlen, who is a specialist on scarab beetles. (And how funny is it that a discussion of Dung Beetles happened on a program called "Fresh Air"?!) At about 34:00, he started telling of insects in chocolate and coffee beans: Food Defect Action Level CHOCOLATE AND CHOCOLATE LIQUOR Insect

Emlen, Douglas J.

59

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

­magnetic field geometry is called Faraday configuration and it is usually associated to the Inverse Faraday E. Changes in the crystal magnetization have been meas­ ured using a probe constituted by a double pickup

60

OktoberbisMrz Alfried Krupp Wissenschaftskolleg  

E-print Network

Zusammenarbeit und Entwicklung Berlin Moderation: Professor Dr. Michael Succow Donnerstag, 13. Dezember 2012 18 Geschichte des Nahostkonflikts Dr. Tamar Amar-Dahl Fellow des Alfried Krupp Wissenschaftskollegs Moderation

Greifswald, Ernst-Moritz-Arndt-Universitt

61

268 -XIV Encuentro de Latinoamericanistas Espaoles INMIGRANTES LIBANESES EN COSTA  

E-print Network

, junto al matrimonio, el nacionalizarse y el comercio. En la parte final de este artculo, realizamos un. Consltese: Arthur George Malin Gillot, poca de la Gran Logia de Costa Rica, #12;Congreso Internacional

Boyer, Edmond

62

The Changing Global Distribution of Malaria: A Review  

E-print Network

The Changing Global Distribution of Malaria: A Review Amar Hamoudi and Jeffrey D. Sachs CID Working Paper no. 2 The Changing Global Distribution of Malaria: A Review Amar Hamoudi and Jeffrey D. Sachs Abstract Organized efforts to reduce the burden of malaria are as old as human societies. Understanding

63

Implications for Child Bilingual Acquisition, Optionality and Transfer  

ERIC Educational Resources Information Center

Amaral & Roeper's Multiple Grammars (MG) proposal offers an appealingly simple way of thinking about the linguistic representations of bilingual speakers. This article presents a commentary on the MG language acquisition theory proposed by Luiz Amaral and Tom Roeper in this issue, focusing on the theory's implications for child

Serratrice, Ludovica

2014-01-01

64

ANLISIS DEL IMPACTO DE LAS NORMAS INTERNACIONALES DE CONTABILIDAD SOBRE EL PATRIMONIO NETO Y RESULTADO DE LOS GRUPOS NO FINANCIEROS DEL IBEX35  

Microsoft Academic Search

The Economic European Area decided to require public groups to prepare their financial statements under IFRS covering periods beginning on or after January 1, 2005. The Spanish experience with the implementation of IFRS in consolidated financial statements has been very positive, but it is necessary to investigate in detail the impact of this historic process. In this paper, we have

Alvarado Riquelme; M. Ampudia Fernndez; J. M. Prado Romn; Juan Carlos

65

Two Contrast-Adaptation Processes: One Old, One New Columbia University, Dept of Psychology, New York, NY S. Sabina Wolfson, Norma Graham & Stephanie Pan  

E-print Network

Two Contrast-Adaptation Processes: One Old, One New Columbia University, Dept of Psychology, New found a new kind of contrast adaptation: · A contrast-comparison-level is continually updated based that of a typical fixation. · We have nicknamed this "Buffy adaptation". Here we show how this interacts with an old

Columbia University

66

Cambios en la capacidad del Estado para enfrentar las violaciones de las normas laborales: los talleres de confeccin 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

67

NANOPATTERNING WITH CONDUCTIVE DIAMOND COATED ATOMIC FORCE MICROSCOPY PROBES Matthew J. Schmitz, C. Reagan Kinser, Norma E. Cortes, and Mark C. Hersam  

E-print Network

NANOPATTERNING WITH CONDUCTIVE DIAMOND COATED ATOMIC FORCE MICROSCOPY PROBES Matthew J. Schmitz, C using wearresistant, conductive diamond coated AFM tips. This important step forward improves electron microscope image of a conductive diamond coated AFM tip. (B) Nanopatterning with 18 nm spatial

Shull, Kenneth R.

68

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

and Edmund Burke both find a sublime, not a deist, Milton in the epic. Spenser crosses the ?Mosaic distinction? in his introduction of poly- theistic gods yet because he is writing allegory, he gets away with the ploy, whereas ?in contrast, Milton...

Sherman, Donovan

2010-01-01

69

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

70

Indian comics as public culture  

E-print Network

The Amar Chitra Katha (ACK) series of comic books have, since 1967, dominated the market for domestic comic books in India. In this thesis, I examine how these comics function as public culture, creating a platform around ...

Das, Abhimnanyu, S.M. Massachusetts Institute of Technology

2009-01-01

71

NOME MATRCULA Eduardo Andr Hartmann 11103749  

E-print Network

Sousa Maes 10202241 Jeferson Linzmaier 9260371 Rafael Angelo Chitolina 9260159 Fernando Porto Soares F. Schubert 9260189 Anderson Augusto Heinz 9260011 Janaína Ribas de Amaral 11103323 Gervasio Tadeu

Floeter, Sergio Ricardo

72

DEDICATION Arnold Weinberger  

E-print Network

at Amherst Peter Kornerup, Odense University Ulrich Kulisch, Universitat Karlsruhe Simon Knowles, SGS-Packard Laboratories XI #12;eviewers Kevin Acken Amar Aggoun Robert Alverson R.S. Bajwa Poras-T. Balsara Andrew

California at Davis, University of

73

Programming Microbes Using Pulse Width Modulation of Optical Signals  

E-print Network

Programming Microbes Using Pulse Width Modulation of Optical Signals Eric A. Davidson1 , Amar S of microbial physiology via manipulation of a metabolic enzyme. 2013 The Authors. Published by Elsevier Ltd

Basu, Amar S.

74

Autism Data & Statistics  

MedlinePLUS

... 6 months of age.[ Read summary ] [ Read summary ] Economic Costs It is estimated to cost at least $ ... Grosse, S.D., Peacock, G., & Mandell, D.S. (2011). The economic costs of autism: A review. In D. Amaral, ...

75

374 UniversityFaculty 2007-2008 University of Kentucky Bulletin University Faculty  

E-print Network

G. Craycraft, director Carla G. Craycraft, extension professor, Ph.D., Oklahoma State, 1981 Joe B.D., Oklahoma State, 1984 Curtis W. Absher, extension professor emeritus, Ph.D., Tennessee, 1969 Donna M. Amaral

MacAdam, Keith

76

Copyright 2009 by Northwestern University School of Law Printed in U.S.A. Northwestern University Law Review Vol. 103, No. 4  

E-print Network

Lifshitz, Barry Nalebuff, Jacob Nussim, Oren Perez, Eric Rasmusen, Glen Robinson, George Ru- therglen, Fred. Professor of Law, Cardozo Law School. We thank Ken Abraham, Barry Adler, Akhil Amar, Adi Ayal, Ian Ayres

Wintner, Shuly

77

UniversityFaculty University of Kentucky 2011-2012 Undergraduate Bulletin 262  

E-print Network

, Extension Professor, Ph.D., Tennessee, 1992 Larry D. Jones, Extension Professor Emeritus, Ph.D., Purdue Curtis W. Absher, Extension Professor Emeritus, Ph.D., Tennessee, 1969 Donna M. Amaral-Phillips

MacAdam, Keith

78

246 UniversityFaculty University of Kentucky 2008-2009 Undergraduate Bulletin  

E-print Network

, 1974 Stephen G. Isaacs, extension professor, Ph.D., Tennessee, 1992 Larry D. Jones, extension professor State, 1984 Curtis W. Absher, extension professor emeritus, Ph.D., Tennessee, 1969 Donna M. Amaral-Phillips

MacAdam, Keith

79

________________________________________________________________________The MIND Institute__________________ Christine Wu Nordahl, Ph.D.  

E-print Network

of Autism and Developmental Disorders 38:1581-1590 Amaral DG, Schumann CM, Nordahl CW (2008) Neuroanatomy for acquiring structural MRI data in very young children with autism without the use of sedation. Journal

Nguyen, Danh

80

Geological mapping of the Rainbow Massif, Mid-Atlantic Ridge, 3614'N  

Microsoft Academic Search

The Rainbow hydrothermal field at 3614'N on the Mid-Atlantic Ridge is one of the few known sites hosted in ultramafic basement. The Rainbow Massif is located along the non-transform offset between the AMAR and South AMAR second-order ridge segments, and presents the characteristic dome morphology of oceanic core complexes, although no corrugated surface has been observed so far. One of

B. Ildefonse; Y. Fouquet; E. Hois; J. Dyment; P. Gente; R. Thibaud; D. Bissessur; V. Yatheesh

2008-01-01

81

Se recuerda a todos los alumnos las siguientes normas a seguir para la defensa y exposicin de los trabajos/proyectos fin de grado del curso de adaptacin al grado de  

E-print Network

trabajos/proyectos fin de grado del curso de adaptación al grado de Ingeniería de Edificación: Las aulas reservadas para que los alumnos ensayen su exposición están publicadas en el campus virtual como noticia y en la web del Departamento de Edificación y Urbanismo. Las aulas donde se celebrarán las exposiciones

Escolano, Francisco

82

Classes of real-world 'small-world' networks: From the neural network of C. Elegans to the web of human sexual contacts  

NASA Astrophysics Data System (ADS)

We study the statistical properties of a variety of diverse real-world networks including the neural network of C. Elegans, food webs for seven distinct environments, transportation and technological networks, and a number of distinct social networks [1-5]. We present evidence of the occurrence of three classes of small-world networks [2]: (a) scale-free networks, characterized by a vertex connectivity distribution that decays as a power law; (b) broad-scale networks, characterized by a connectivity distribution that has a power-law regime followed by a sharp cut-off; (c) single-scale networks, characterized by a connectivity distribution with a fast decaying tail. Moreover, we note for the classes of broad-scale and single-scale networks that there are constraints limiting the addition of new links. Our results suggest that the nature of such constraints may be the controlling factor for the emergence of different classes of networks. [See http://polymer.bu.edu/ amaral/Networks.html for details and htpp://polymer.bu.edu/ amaral/Professional.html for access to PDF files of articles.] 1. M. Barthlmy, L. A. N. Amaral, Phys. Rev. Lett. 82, 3180-3183 (1999). 2. L. A. N. Amaral, A. Scala, M. Barthlmy, H. E. Stanley, Proc. Nat. Acad. Sci. USA 97, 11149-11152 (2000). 3. F. Liljeros, C. R. Edling, L. A. N. Amaral, H. E. Stanley, and Y. berg, Nature 411, 907-908 (2001). 4. J. Camacho, R. Guimera, L.A.N. Amaral, Phys. Rev. E RC (to appear). 5. S. Mossa, M. Barthelemy, H.E. Stanley, L.A.N. Amaral (submitted).

Nunes Amaral, Luis A.

2002-03-01

83

Journal of Modern Physics, 2013, 4, 823-847 doi:10.4236/jmp.2013.46113 Published Online June 2013 (http://www.scirp.org/journal/jmp)  

E-print Network

, of the Higgs and the Yukawa Couplings Norma Susana Mankoc Borstnik Department of Physics, FMF, University of Ljubljana, Ljubljana, Slovenia Email: norma.mankoc@fmf.uni-lj.si Received March 18, 2013; revised April 20

84

75 FR 13265 - National Board for Education Sciences  

Federal Register 2010, 2011, 2012, 2013, 2014

...FOR FURTHER INFORMATION CONTACT: Norma Garza, Executive Director, National Board for...202) 219- 1466; e-mail: Norma.Garza@ed.gov. Individuals who use a telecommunications...final agenda will be available from Norma Garza (see contact information above) on...

2010-03-19

85

El almanaque de Jurez de Emilio Carballido y Mxico en 1968  

E-print Network

desarrollar como idea central de la obra el vaivn violento que caracteriza la historia mexicana, el pensamiento de Carba- llido coincide con el de Octavio Paz en las palabras, ocasionadas por la tragedia del 2 de octubre, que se citaron anteriormente. Las.... Jurez es el nico personaje diferenciado. Su personalidad est, empero, juzgada desde fuera. Esta perspectiva exterior de su carcter se demuestra en el nivel altamente abstracto en que se representa la escena de su matrimonio y por el nfasis con que...

Villacré s Stanton, Helena

1979-04-01

86

Cell Type Regulates Selective Segregation of Mouse Chromosome 7  

E-print Network

Cell Type Regulates Selective Segregation of Mouse Chromosome 7 DNA Strands in Mitosis Athanasios Armakolas and Amar J. S. Klar* After chromosome replication, sister chromatid copies are generally thought with a homologous chromosome pair indicated nonrandom chromatid distribution in embryonic stem cells. Biased

Mayfield, John

87

Automated Estimation of Tumor Probability in Prostate MRSI: Pattern Recognition vs. Quantification  

E-print Network

Introduction Clinical studies have shown significant diagnostic value of 1H magnetic resonance spectroscopic- ing (MRSI) has not found its way into clinical routine yet. Prerequisite for the clinical application to feature extraction are compared: quantification (VARPRO, AMARES, QUEST) and subspace methods on spectral

Hamprecht, Fred A.

88

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

89

SAVE the DATE!! April 26, 2012 at 7:00 PM in Rodney Auditorium  

E-print Network

on neurobiological correlates of autism. Education: B.A., Psychology, Northwestern University, 1972 Valley Campus Presentation by David Amaral, Ph.D Dealing with the heterogeneity of Autism: The Autism Pheoneme Project "Solving the Puzzle of Autism" Distinguished Professor Department of Psychiatry

Ponce, V. Miguel

90

Optical Spectrum CDMA: A New Code Construction with Zero Cross Correlation for Double Weight Code Family  

Microsoft Academic Search

This paper concentrates on double weight code family as a proposed code for the optical spectrum code division multiple access (OSCDMA) which has one cross correlation value. By eliminating the intersection columns of this code, the cross correlation value will be zero instead of one. This new derived code is called zero cross-correlation code (ZCC) (S. Amar et al., 2006).

E. I. Babekir; N. M. Saad; N. Elfadel; A. Mohammed; A. A. Aziz; M. S. Anuar; S. A. Aljunid; M. K. Abdullah

2007-01-01

91

MARINE MAMMAL SCIENCE, **(*): ****** (*** 2013) 2013 by the Society for Marine Mammalogy  

E-print Network

status of New Zealand common dolphins did not show any clustering reflecting geographic origin southernmost range limit: New Zealand waters KAREN A. STOCKIN,1 Coastal-Marine Research Group, Massey University, Private Bag 102 904, NSMC, Auckland, New Zealand; ANA R. AMARAL,1 Universidade de Lisboa

Stockin, Karen

92

MARINE MAMMAL SCIENCE, 30(1): 4463 (January 2014) 2013 by the Society for Marine Mammalogy  

E-print Network

status of New Zealand common dolphins did not show any clustering reflecting geographic origin.) at its southernmost range limit: New Zealand waters KAREN A. STOCKIN,1 Coastal-Marine Research Group, Massey University, Private Bag 102 904, NSMC, Auckland, New Zealand; ANA R. AMARAL,1 Universidade de

Stockin, Karen

93

DMSP/OLS night-time light imagery for urban population estimates in the Brazilian Amazon  

E-print Network

analyses DMSP/OLS night-time imagery as an information source to detect human settlements and to estimate with the IBGE census data and the correlation between DMSP/OLS night-time light area and the urban populationDMSP/OLS night-time light imagery for urban population estimates in the Brazilian Amazon S. AMARAL

Camara, Gilberto

94

INTERNATIONAL FOOD POLICY RESEARCH INSTITUTE  

E-print Network

INTERNATIONAL FOOD POLICY RESEARCH INSTITUTE sustainable solutions for ending hunger and poverty for Aflatoxin Control in Africa Amare Ayalew, Wezi Chunga, and Winta Sintayehu TECHNOLOGY 16. Biological Contamination of Maize: Developing Host Resistance George Mahuku, Marilyn L. Warburton, Dan Makumbi, and Felix

Cotty, Peter J.

95

Thank You to Our Donors !! Challenge Committee  

E-print Network

Elizabeth Voros Hsing Cheng Wu Yu Wu Changrui Yin Haijing Zhang 4/13/09 #12;-Hasnain Professor Robert Dutton Dr. William Flounders Professor Paul Gray Robert Hamilton Professor David Hodges Amaral Junwei Bao David Basso Jeffrey Bokor Alan Briggs Sean Cahill Kim Chan Jimmy Chang Yijen Wu Chen

California at Irvine, University of

96

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

97

1. ADRIANA CASTILHO COQUITO 2. ADRIANO DE SOUZA DIAS  

E-print Network

CHAGAS 12. ANDERSON GOULART DE ARAUJO 13. ANDERSON PAULA PASSOS 14. ANDRE LUÍS PITTA RIBEIRO 15. ANDR? CARDOSO BENVINDO 50. EVERALDO FERNANDES GON?ALVES 51. FABIANA CHAGAS DE ANDRADE 52. FABIANA GOMES DA SILVA MARTINS DOS SANTOS 104. LEONARDO SANTOS BARBOSA 105. LEONARDO SILVA CABRAL 106. LIDIA DO AMARAL DAS CHAGAS

Solodov, Mikhail V.

98

Free Switched iPhone app -try it now! COMPUTEX 2011 ASUS PADFONE HTC SENSATION CHARGE REVIEW GALAXY S II BLACKBERRY PLAYBOOK  

E-print Network

Free Switched iPhone app - try it now! COMPUTEX 2011 ASUS PADFONE HTC SENSATION CHARGE REVIEW Interest Based Ad By Amar Toor posted May 11th 2011 6:12PM Robots, Science Cornell's Ranger robot walks 40 rejoicing when their Ranger robot set an unofficial world record by walking for 5.6 miles without stopping

Ruina, Andy L.

99

Improved Method for Accurate and Efficient Quantification of MRS Data with Use of Prior Knowledge  

Microsoft Academic Search

We introduce AMARES (advancedmethod foraccurate,robust, andefficientspectral fitting), an improved method for accurately and efficiently estimating the parameters of noisy magnetic resonance spectroscopy (MRS) signals in the time domain. As a reference time domain method we take VARPRO. VARPRO uses a simple LevenbergMarquardt algorithm to minimize the variable projection functional. This variable projection functional is derived from a general functional, which

Leentje Vanhamme; Aad van den Boogaart; Sabine Van Huffel

1997-01-01

100

PUBLISHED ONLINE: 12 JUNE 2011 | DOI: 10.1038/NPHYS2022 Experimental validation of free-energy-landscape  

E-print Network

-energy-landscape reconstruction from non-equilibrium single- molecule force spectroscopy measurements Amar Nath Gupta1 , Abhilash,6 and experiments7,8 but never validated experimentally. We tested it using forceextension measurements on DNA the landscape profiles obtained from the non-equilibrium reconstruction and those from equi- librium probability

Loss, Daniel

101

Behavioral Ncuroscience 1997, Vol. 111, No. 4, 667-675  

E-print Network

Diego Larry R. Squire Veterans Affairs Medical Center, San Diego, and University of California, San to the hippocampus (G.D.) or the hippocampal formation (W.H. and L.M.), as determined by postmortem, neurohistological analysis (N. Rempel-CIower, S. M. Zola, L. R. Squire, & D. G. Amaral, 1996). All 6 patients

Squire, Larry R.

102

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.

103

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.

104

Complexity and Conflicting Grammars in Language Acquisition  

ERIC Educational Resources Information Center

The article by Amaral and Roeper (this issue; henceforth A&R) presents many interesting ideas about first and second language acquisition as well as some experimental data convincingly illustrating the difference between production and comprehension. The article extends the concept of Universal Bilingualism proposed in Roeper (1999) to second

Westergaard, Marit

2014-01-01

105

Response of a Noncohesive Packing of Grains to a Localized Force: Deviation From Continuum Elasticity.  

E-print Network

Elasticity. El Hadji Bouya Amar1 , D. Clamond2 , N. Fraysse1 , J. Rajchenbach1 1 Laboratoire de Physique de submitted to a localized force. By means of image processing, we obtain an accurate measurement deviates unambiguously from the predictions of linear elasticity and of other theoretical descriptions

Paris-Sud XI, Université de

106

PHYSICAL REVIEW E 83, 021304 (2011) Response of a noncohesive packing of grains to a localized force: Deviation from continuum elasticity  

E-print Network

force: Deviation from continuum elasticity El Hadji Bouya Amar,1 D. Clamond,2 N. Fraysse,1 and J of cylinders submitted to a localized force. By means of image processing, we obtain an accurate measurement deviates unambiguously from the predictions of linear elasticity and of other theoretical descriptions

Clamond, Didier

107

Contradictory Information in the Input as the Cause of Multiple Grammars: Predictions for Bilingual Acquisition  

ERIC Educational Resources Information Center

The central claim in Amaral and Roeper's (this issue; henceforth A&R) keynote article is that everyone is multilingual, whether they speak one or more languages. In a nutshell, the idea is that each speaker has multiple grammars or "sub-sets of rules (or sub-grammars) that co-exist". Thus, rather than positing complex rules to

Unsworth, Sharon

2014-01-01

108

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 demonstrate that an analysis of the sentiments to identify their trends, seasonality and forecasts can provide a significant number of user comments, little work has been done to date in extracting trends from

Zambreno, Joseph A.

109

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

110

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.

111

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

112

MIT EL 00-007 Energy Laboratory  

E-print Network

Committee: Praveen Amar, NESCAUM John Heywood, MIT Diane Mundt, HEI Robert Sawyer, UC-Berkeley Sponsored................................................................................................................................................................................4 2.3 ISSUES IN NOX MEASUREMENT AND MONITORING(ROBERT SAWYER, UC BERKELEY...........................................................................................................................................................................7 3.1.1 Reducing the Impact of Diesels on Air Quality and Public Health: Tom Cackette, CARB

113

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

114

VOLUME 82, NUMBER 19 P H Y S I C A L R E V I E W L E T T E R S 10 MAY 1999 Self-Adaptation in Vibrating Soap Films  

E-print Network

-Adaptation in Vibrating Soap Films Arezki Boudaoud, Yves Couder, and Martine Ben Amar Laboratoire de Physique Statistique Lhomond, F-75231 Paris Cedex 05, France (Received 14 December 1998) The vibration of a soap film set the experimental results. [S0031-9007(99)09106-1] PACS numbers: 68.45.Kg, 47.20.Ky In early times, vibrating soap

115

Influence of the driving rate in a two-dimensional rice pile model Kinga A. Lrincz and Rinke J. Wijngaarden  

E-print Network

Influence of the driving rate in a two-dimensional rice pile model Kinga A. Lrincz and Rinke J the influence of the driving rate in the two-dimensional Oslo rice pile model. We find that the usual power are the Bak-Tang- Wiesenfeld BTW sandpile model 1,7 , the rice pile models the Oslo model 8 and the Amaral

Wijngaarden, Rinke J.

116

Chloroquine Resistance in Plasmodium falciparum Malaria  

E-print Network

the primary chemotherapeutic means of malaria treatment and control (1). This safe and inexpensive 4Chloroquine Resistance in Plasmodium falciparum Malaria Parasites Conferred by pfcrt Mutations Amar is a major cause of worldwide increases in malaria mortality and morbidity. Recent laboratory and clinical

Symington, Lorraine S.

117

bbkThe Birkbeck magazine Issue 23, Spring 2008 A clean sweep  

E-print Network

Research on managing the risk of flooding Babylab speaks up 5 Funding for national autism network Master Genet Amare also has a lot to celebrate after going into labour during her final exam last year. She expertise of the participants to advance the field, the three partners will study the structure of sodium

Crawford, Ian

118

Ao judicial 930007202-1 j paga em fevereiro 10/02/2006 -2006 comea com mais uma boa notcia para um grupo de  

E-print Network

DAMIAN PREVE ALTIVA ALTINA MINICH ANA LOPES RACHADEL ANA LUCIA PEREIRA DO AMARAL ANA MARIA VELOSO VIEIRA CARLUCIA ROCHA CARMEN LUCIA BLASI VILLARI CATARINA MARTENDAL CELIA RIBEIRO CELLY DULCEMAR MELO CELSO RAMOS GALLIANI LOFY CORINA MARTINS ESPINDOLA #12;DARCI ESPINDOLA DAVID FRANCISCO TURNES DEISE LUCY OLIVEIRA

Floeter, Sergio Ricardo

119

Group Work 1, M210G, Fall 2004 The following table contains data on your classmates. Divide the data into two groups based on whether  

E-print Network

.5 70 72 60 71 68 67 65 64 66 62 65 64 66 73 Weight (lbs) 112 220 250 170 165 180 165 115 172 170 130. 25.4 Rene Rommel Boxing 5' 10" 178 lbs. 25.5 Lance Bade Shooting 5' 8" 168 lbs. 25.5 Amare Stoudemire

Lakey, Joseph D.

120

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

121

Research Article Geoweb Services for Sharing Modelling  

E-print Network

policies, are useful to forecast the impacts of climate change, and help to detect problems related, PUC-Rio Rio de Janeiro, Brazil Silvana Amaral National Institute of Space Research (INPE) Abstract Getlio Vargas, 04. Monte Castelo. CEP 65025-001. So Lus, MA, Brazil. E-mail: karladf

Camara, Gilberto

122

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

123

Multiple Grammars: Old Wine in Old Bottles  

ERIC Educational Resources Information Center

Amaral and Roeper (this issue; henceforth A&R) argue that all speakers -- regardless of whether monolingual or bilingual -- have multiple grammars in their mental language representations. They further claim that this simple assumption can explain many things: optionality in second language (L2) language behaviour, multilingualism, language

Sorace, Antonella

2014-01-01

124

Analyse exploratoire d'un graphe : le cas de la contamination par le VIH `a Cuba  

E-print Network

(ESANN 2011). Bruges, Belgique (April 2011). [3] Keeling, M.J., Eames, K.T., Networks and epidemic models of complex networks, SIAM Review 45, 167­256, 2003. [5] Liljeros, F., Edling, C.R., Nunes Amaral, L la taille est unique puisqu'il regroupe dans une m^eme composante connexe environ 2400 patients s

Rossi, Fabrice

125

REVIEWER ACKNOWLEDGEMENT Open Access Reviewer acknowledgement 2013  

E-print Network

Zubair Ahmed United States of America S. Faisal Ahmed United Kingdom Jan Albrecht Poland Beate Albrecht Germany Rando Allikmets United States of America Margarida Amaral Portugal Christer Andersson Sweden David Araujo-Vilar Spain Eloisa Arbustini Italy Pamela Arn United States of America Martin Ashton-Key United

Boyer, Edmond

126

Nitrogen Fertilizer and Crop Residue Effects on Seed Mortality and Germination of Eight Annual Weed Species  

E-print Network

foxtail, Setaria viridis (L.) Beauv. SETVI; redroot pigweed, Amaranthus retroflexus L. AMARE; velvetleaf. Nomenclature: Giant foxtail, Setaria faberi Herrm. SETFA; giant ragweed, Ambrosia trifida L. AMBTR; green villosa (Thunb.) Kunth ERIVI; yellow foxtail, Setaria glauca (L.) Beauv. SETLU. Key words: Seed mortality

Sims, Gerald K.

127

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.

128

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.

129

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 la fois de la politique économique nationale et internationale, il peut être souhaitable d'isoler les fluctuations court terme dans une variable économique en établissant une norme moyen terme, ou une valeur représentative de tendance, 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

130

Ministerio de Economa, versin, 13.9.2000 1 ANTEPROYECTO  

E-print Network

condiciones de seguridad a que deben someterse las instalaciones, maquinarias, instrumentos, equipos instrumentos destinados a registrar el consumo o transferencia de energa elctrica. 7.- Las normas sobre

Rudnick, Hugh

131

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

132

Molecular characterization by LSSP-PCR and DNA sequencing of a pathogenic isolate of Leptospira interrogans from Brazil.  

PubMed

We report the initial characterization of a leptospiral isolate, Leptospira interrogans, serogroup Sejroe, serovar Hardjo, genotype Hardjoprajitno, strain Norma, and its relatedness with L. interrogans, serogroup Sejroe, serovar Hardjo, genotype Hardjoprajitno, strain Hardjo and Leptospira borgpetersenii, serogroup Sejroe, serovar Hardjo, genotype Hardjobovis, strain Sponselee. The Norma strain singled out during a leptospirosis outbreak in cattle immunized with antigens from the reference strain Hardjoprajitno (OMS). By applying a microscopic agglutination serological test (MAT) to cattle (n = 2966) with symptoms of leptospirosis between 2003 and 2007, more than 50% of sera were found positive for one of the following serotypes: Hardjoprajitno (31-21%), Hardjo Norma (46-40%), Hardjo hardjobovis (18-10%), Mini (8-4%) and Wolffi (7-4%). In immunization trials using six isolates plus Norma isolate, the remission of MAT in these isolates was observed following 6 months of the initial vaccination. To provide molecular ground for the high MAT Norma frequency found in these isolates, a DNA polymorphic analysis was conducted by comparing the Norma isolate with reference strains Hardjoprajitno and Sponselee. The polymorphic analysis in secY showed five base changes in Norma relative to Hardjoprajitno strain, corresponding to 98% identity, while Sponselee displayed 49 polymorphic sites relative to the Hardjoprajitno strain, representing 80% identity. The alignment of secY translated sequences shows no differences between Hardjoprajitno and Norma, and eight polymorphisms between genotype hardjoprajttno and strain Sponselee. Three-dimensional modelling located these variations within the loop region connecting helices 7 and 8 from secY which is less conserved. DNA sequencing of 23S ribosomal conserved fragment revealed a single polymorphism between Hardjoprajitno and Norma, and 13 polymorphisms between strains Sponselee, Hardjoprajitno and Norma. The differences between Hardjo and Norma were confirmed by low stringency single-specific primer polymerase chain reaction (LSSP-PCR) signature experiments with the primer G2, using as template the 285 bp fragment initially amplified with G1/G2 primers. PMID:23057087

Cosate, M R V; Barouni, A S; Moreira, E C; Veloso, I F; Gomes, M T R; Salas, C E

2012-09-01

133

Laser Ranging to the Moon, Mars and Beyond  

Microsoft Academic Search

Current and future optical technologies will aid exploration of the Moon and\\u000aMars while advancing fundamental physics research in the solar system.\\u000aTechnologies and possible improvements in the laser-enabled tests of various\\u000aphysical phenomena are considered along with a space architecture that could be\\u000athe cornerstone for robotic and human exploration of the solar system. In\\u000aparticular, accurate ranging to

Slava G. Turyshev; James G. Williams; Michael Shao; John D. Anderson; Kenneth L. Nordtvedt Jr

2004-01-01

134

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

E-print Network

not preclude subsequent review.] Abreu Felippe, Jos. Amar as. Miami: Ediciones Universal, 1988. 46 p. Acosta, Ivn. Un cubiche en la luna: tres obras teatrales. Houston: Arte Pblico Press, 1989. 128 p. Alberdi, Jaime. Curso intensivo de teatro con siete.... Bogot: 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 introduccin por Carlos...

1990-04-01

135

THSE DE DOCTORAT DE L'UNIVERSIT PIERRE ET MARIE CURIE  

E-print Network

TH?SE DE DOCTORAT DE L'UNIVERSIT? PIERRE ET MARIE CURIE ?cole Doctorale de Science Mécanique DOCTEUR de l'UNIVERSIT? PIERRE ET MARIE CURIE Présentée par Mingxing LIU Personnage virtuel : contrôleur'Université Pierre et Marie Curie Examinateur M. F. Ben Amar Professeur à l'Université Pierre et Marie Curie

Paris-Sud XI, Université de

136

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

Microsoft Academic Search

El gran impacte que El Nio ? Oscillaci del Sud (ENSO) t en\\u000ala nostra societat industrialitzada ha esperonat la comunitat\\u000acientfica d'arreu a entendre quins sn els mecanismes fsics\\u000aque el controlen, aix com clarificar quina ha estat la seva histria.\\u000aEl registre sedimentari de sensors naturals, com els llacs o la\\u000amar, ha perms reconstruir la histria de

Santiago Giralt; Ana Moreno Caballud; Roberto Bao; Alberto Sez Ruiz; Blas L. Valero-Garcs; J. J. Pueyo; B. B. Klosowska; Armand Hernndez; Penlope Gonzlez-Sampriz; Conxita Taberner

2008-01-01

137

Integrated RTPCR\\/nested PCR diagnosis for differentiating between subgroups of plum pox virus  

Microsoft Academic Search

An RTPCR\\/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.

Marianna Szemes; Mikls Klmn; Arben Myrta; Donato Boscia; Mria Nmeth; Mria Klber; Lszl Dorgai

2001-01-01

138

Ideologa y teatro pico en Santa Juana de Amrica  

E-print Network

FALL 1980 55 Ideologa y teatro pico en Santa Juana de Amrica FERNANDO DE TORO Bertold Brecht, paralelamente a su produccin dramtica, desarroll una teora para lo que l llam teatro "pico." Esta teora fue elaborada a partir de una... nuclear del acto I, esto es, la situacin dramtica bsica. El Sujeto actancial es motivado a trabajar la tierra (O) por un instinto de supervivencia (DI) para sostener a su familia (D2). Encuentra un apoyo en el matrimonio con Manuel (Ad) y una fuerza...

de Toro, Fernando

1980-10-01

139

Quijotada en Washington, D. C.  

E-print Network

FALL 1998 167 Quijotada en Washington D.C. Vctor Bogado, Jr. El matrimonio compuesto por Nucky Walder, paraguaya, y Mario Marcel, argentino, vive en Washington, D.C. desde principios de la dcada de los ochenta donde vienen realizando una... cargos estatales dentro del quehacer cultural. En 1983 Marcel emigra a Washington, D.C. donde colabora con el Centro de Arte, el Centro de la Juventud Latinoamericana y con el grupo Panamericano de teatro de funcionarios de la OEA. En 1983 se integra...

Bogado, Ví ctor

1998-10-01

140

El concepto del honor en tres dramas de Calderon  

E-print Network

honor con la muerte de Mencfa, cata listo para cometer un crimen nuevamente en caso de que Leonor lo haga tener sospechas. Por eso al darle la mano para el matrimonio le dice: Mira que medico he sido de mi honra: no esta olvidada la ciencia . (pag..., " el que deja a su hermano abandonado despues de un accidente, o que hace una apuesta injusta con Coqufn. Si se analiza el Rey objetivamente, se puede ver que no es ni completamente bueno ni completamente malo. Corno humano, al fin, comete sus...

Escabi, Maria Isabel

1978-01-01

141

Automated Masking of AFLP Markers Improves Reliability of Phylogenetic Analyses  

PubMed Central

The amplified fragment length polymorphisms (AFLP) method has become an attractive tool in phylogenetics due to the ease with which large numbers of characters can be generated. In contrast to sequence-based phylogenetic approaches, AFLP data consist of anonymous multilocus markers. However, potential artificial amplifications or amplification failures of fragments contained in the AFLP data set will reduce AFLP reliability especially in phylogenetic inferences. In the present study, we introduce a new automated scoring approach, called AMARE (AFLP MAtrix REduction). The approach is based on replicates and makes marker selection dependent on marker reproducibility to control for scoring errors. To demonstrate the effectiveness of our approach we record error rate estimations, resolution scores, PCoA and stemminess calculations. As in general the true tree (i.e. the species phylogeny) is not known, we tested AMARE with empirical, already published AFLP data sets, and compared tree topologies of different AMARE generated character matrices to existing phylogenetic trees and/or other independent sources such as morphological and geographical data. It turns out that the selection of masked character matrices with highest resolution scores gave similar or even better phylogenetic results than the original AFLP data sets. PMID:23152859

Gimnich, France

2012-01-01

142

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

E-print Network

Avaliao da QoS em redes Ethernet M. Carmo, J. S Silva, E. Monteiro, P. Simes, M. Curado and F redes Ethernet foi superada com o desenvolvimento das normas IEEE 802.1D e IEEE 802.1Q. Este artigo servio em redes Ethernet. Os mdulos respeitam as normas IEEE 802.1Q/D e implementam as recomendaes

Monteiro, Edmundo

143

Ministerio de Medio Ambiente Direccin General de Conservacin de la Naturaleza Catlogo Nacional de Especies Amenazadas  

E-print Network

montesi Ferro, 1983 Nombre vulgar: Castellano: Cataln: Gallego: Vasco: Categora de amenaza Fecha: Norma _____________________________________________________________________________ Situacin legal: Catlogos Regionales. Categoras de amenaza Fecha: Norma: Categora: Libros Rojos. Categoras de amenaza Mundial: No catalogada. En Snchez-Fernndez et al., (2003) se propone su inclusin en

Murcia, Universidad de

144

50 ARTCULOS GENERALES Hay muchos interesados en acciones  

E-print Network

, reflexiona sobre los elementos de su propio código de conducta de personal y sus principios, entre los que se cultural, social y religioso y respeto por las normas de conducta locales. Varias organizaciones

Escolano, Francisco

145

Utah Commission on Aging Minutes for January 11, 2006 Meeting  

E-print Network

AARP Leone Harwood Utah Department of Transportation Larry Marx Taylorsville Police Department Norma for the informal caregiver network · Aging issues need to get on the radar · Education helps and reduces fear

Tipple, Brett

146

NEWS RELEASE Sandra Bent, Marketing  

E-print Network

amazing and talented students dreams come true. Having Ms. Buckley headline our fundraiser is a real treat interpretation of Norma Desmond in the London production of Andrew Lloyd Webbers Sunset Boulevard, which she

Oklahoma, University of

147

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...

148

Utah Commission on Aging August 19, 2009  

E-print Network

Soper for Diana Kirk Financial Institutions Scott McBeth for Shauna O'Neil Area Agencies on Aging Transportation Other attendees: Donna Russell OPG The meeting was called to order by Norma Matheson. 1. Welcome

Tipple, Brett

149

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

150

October 12, 2010 15:55 WSPC -Proceedings Trim Size: 9in x 6in NewZealandDarkMatter230309Proc OFFERING THE MECHANISM FOR GENERATING  

E-print Network

STABLE FAMILY FORMING DARK MATTER CLUSTERS N.S. MANKOC BORSTNIK Department of Physics, FMF, University of Ljubljana, Jadranska 19, 1000 Ljubljana, Slovenia E-mail: norma.mankoc@fmf.uni-lj.si http://www.fmf

151

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 Guimer-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

152

Virtual Round Table on ten leading questions for network research  

NASA Astrophysics Data System (ADS)

The following discussion is an edited summary of the public debate started during the conference Growing Networks and Graphs in Statistical Physics, Finance, Biology and Social Systems held in Rome in September 2003. Drafts documents were circulated electronically among experts in the field and additions and follow-up to the original discussion have been included. Among the scientists participating to the discussion L.A.N. Amaral, A. Barrat, A.L. Barabasi, G. Caldarelli, P. De Los Rios, A. Erzan, B. Kahng, R. Mantegna, J.F.F. Mendes, R. Pastor-Satorras, A. Vespignani are acknowledged for their contributions and editing.

2004-03-01

153

English Language Development and the Science-Literacy Connection  

NSDL National Science Digital Library

The purpose of this chapter is to provide classroom teachers with a summary of English language development (ELD) strategies used by one region in the United States. The integration of these strategies in science instruction has led to increased levels of vocabulary development by English language learners and their increased achievement in science (Amaral, Garrison, and Klentschy 2002). Many of the strategies, designed to help English language learners acquire standards-based science content, can be integrated across the curriculum. All of the strategies have been used by classroom teachers in the Vall? Imperial Project in Science in Imperial County, California, for more than a decade.

Iris Weiss

2006-01-01

154

Insights into the mechanism of a G-quadruplex-unwinding DEAH-box helicase  

E-print Network

documented the susceptibility of G4 helicases to G4-stabilizing ligands, such as WRN, BLM (20,21), Pif1 (47) and FANCJ (48). Our work furthermore emphasizes thatG4 ligands retard helicase activity rather than quantita- tively inhibit unwinding. Since G4... Amare,A.F. (2010) Riboswitch function: Flipping the switch or tuning the dimmer? RNA Biol., 7, 328332. 50. Paeschke,K., Bochman,M.L., Garcia,P.D., Cejka,P., Friedman,K.L., Kowalczykowski,S.C. and Zakian,V.A. (2013) Pif1 family helicases suppress genome instability...

Chen, Michael C.; Murat, Pierre; Abecassis, Keren; Ferr-DAmar, Adrian R.; Balasubramanian, Shankar

2015-02-04

155

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

156

Random Matrix Theory and Econophysics  

NASA Astrophysics Data System (ADS)

Random Matrix Theory (RMT) [1] is used in many branches of physics as a ``zero information hypothesis''. It describes generic behavior of different classes of systems, while deviations from its universal predictions allow to identify system specific properties. We use methods of RMT to analyze the cross-correlation matrix C of stock price changes [2] of the largest 1000 US companies. In addition to its scientific interest, the study of correlations between the returns of different stocks is also of practical relevance in quantifying the risk of a given stock portfolio. We find [3,4] that the statistics of most of the eigenvalues of the spectrum of C agree with the predictions of RMT, while there are deviations for some of the largest eigenvalues. We interpret these deviations as a system specific property, e.g. containing genuine information about correlations in the stock market. We demonstrate that C shares universal properties with the Gaussian orthogonal ensemble of random matrices. Furthermore, we analyze the eigenvectors of C through their inverse participation ratio and find eigenvectors with large ratios at both edges of the eigenvalue spectrum - a situation reminiscent of localization theory results. This work was done in collaboration with V. Plerou, P. Gopikrishnan, T. Guhr, L.A.N. Amaral, and H.E Stanley and is related to recent work of Laloux et al.. 1. T. Guhr, A. Mller Groeling, and H.A. Weidenmller, ``Random Matrix Theories in Quantum Physics: Common Concepts'', Phys. Rep. 299, 190 (1998). 2. See, e.g. R.N. Mantegna and H.E. Stanley, Econophysics: Correlations and Complexity in Finance (Cambridge University Press, Cambridge, England, 1999). 3. V. Plerou, P. Gopikrishnan, B. Rosenow, L.A.N. Amaral, and H.E. Stanley, ``Universal and Nonuniversal Properties of Cross Correlations in Financial Time Series'', Phys. Rev. Lett. 83, 1471 (1999). 4. V. Plerou, P. Gopikrishnan, T. Guhr, B. Rosenow, L.A.N. Amaral, and H.E. Stanley, ``Random Matrix Theory Analysis of Diffusion in Stock Price Dynamics, preprint

Rosenow, Bernd

2000-03-01

157

Universidad Simn BolvarUniversidad Simn Bolvar ResumenResumen  

E-print Network

para la clasificación y el control de la calidad de los cuerpos de agua y vertidos o efluentes líquidos s de Salud Decreto 2.218 GO 4.418 del 27/04/1992 Normas para el control de la Recuperación de MatPel y 27/04/1992 Calidad de Aire y Contaminación Atmosférica Decreto 638 GO 4.899 del 19/05/1995 Normas

Vásquez, Carlos

158

Selecting Mold Remediation Contractors (Spanish)  

E-print Network

1-800-293-0753 o al 512-834- 4509. El personal puede explicar las normas y est?ndares de licenciamiento. Los consumidores tambi?n pueden visitar el sitio Web www.tdh.state.us/beh/mold/ para consultar las normas que rigen la eliminaci?n de moho en... eliminaci?n de moho Antes de dedicarse a la eliminaci?n de moho, un negocio debe cumplir con ciertos requisitos educativos, de entrenamiento, de evaluaci?n y de licenciamiento. Los consumidores deber?an solicitar copias de las licencias del negocio...

Renchie, Don L.

2007-10-08

159

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

160

Perturbative stability of catenoidal soap films  

E-print Network

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 [7] 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 in [7]. Finally, we compute the eigenfunctions and show, pictorially, how the perturbed soap film evolves in time.

Jana, Soumya

2013-01-01

161

Evolution of optimal Lvy-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 Lvy-flight strategies when exploring the bid space in online auctions. A game theoretical model proved that the observed Lvy 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

162

Implementing online natural gradient learning: problems and solutions.  

PubMed

The online natural gradient learning is an efficient algorithm to resolve the slow learning speed and poor performance of the standard gradient descent method. However, there are several problems to implement this algorithm. In this paper, we proposed a new algorithm to solve these problems and then compared the new algorithm with other known algorithms for online learning, including Almeida-Langlois-Amaral-Plakhov algorithm (ALAP), Vario-eta, local adaptive learning rate and learning with momentum etc., using sample data sets from Proben1 and normalized handwritten digits, automatically scanned from envelopes by the U.S. Postal Services. The strong and weak points of these algorithms were analyzed and tested empirically. We found out that using the online training error as the criterion to determine whether the learning rate should be changed or not is not appropriate and our new algorithm has better performance than other existing online algorithms. PMID:16566461

Wan, Weishui

2006-03-01

163

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

164

Further Geological Sampling Around the Rainbow Hydrothermal Site, Mid-Atlantic Ridge  

NASA Astrophysics Data System (ADS)

The Rainbow hydrothermal site, at 3614'N on the Mid-Atlantic Ridge, is one of the few known site hosted in ultramafic basement. The MOMAR DREAM cruise (July 2007, R/V Pourquoi Pas ?) combined biological and geological objectives to study the role of abundant iron in controlling geological, biological and hydrological active processes at all scales. Two Nautile dives and a dredging program were achieved to further constrain the lithology and geological structures on the seafloor at the scale of the massif that hosts Rainbow. This massif is an inside corner high of the non-transform offset between the AMAR and South AMAR second-order ridge segments, and presents the characteristic dome morphology of oceanic core complexes. The abundant sediment cover of the massif precludes continuous geological mapping and completely successful dredging. However, our limited sampling is consistent with the lithological variability encountered in other oceanic core complexes along the Mid-Atlantic Ridge. The Rainbow serpentinite basement was continuously observed to a distance of about 1 km to the south of the hydrothermal site, with serpentinites sampled along N-S trending, fault planes steeply dipping to the West. Serpentinites were also found on the northwestern, northern, and northeastern flanks of the massif. Approximately 800 m the North of the hydrothermal site, the most prominent outcrop, cut by a family of subvertical, ~ E-W faults, is at least partly made of olivine- orthopyroxene bearing gabbro. Basalts and fresh basaltic glass were also recovered in talus and sediments on the Southwest and Northeast flanks of the massif.

Ildefonse, B.; Andrani, M.; Hois, E.; Ballu, V.; Escartin, J.; Dyment, J.; Gaill, F.; Fouquet, Y.

2007-12-01

165

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

166

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.

167

DESY 05160 LAPTH1111/05  

E-print Network

implicaciones para futuros experimentos en el LHC y en colisionadores lineales e + e . 1. Introducci#19;on 1 las part#19;#16;culas fundamentales son generadas a trav#19;es de la interacci#19;on con un campo de pueden ser absorbidos por los campos de norma (gauge #12;elds), generando las masas de las part#19

168

Trustee Quarterly, 1994.  

ERIC Educational Resources Information Center

The four issues of "Trustee Quarterly" combined here focus on topics of current concern to community college trustees. The winter 1994 issues offers these feature articles: "Honoring Retiring Presidents," by Terry O'Banion; "Trustees as Reluctant Leaders: The Board/CEO Relationship," Norma Jean Germond, John Keyser, and Vaughn A. Sherman; and

Trustee Quarterly, 1994

1994-01-01

169

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

170

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

171

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

172

Reprinted from JOURNAL OF MATHEMATICAL PSYCHOLOGY Vol. 37, No. 1, March 1993 All Rights Reserved by Academic Press, New York and London Printed in Belgium  

E-print Network

Reprinted from JOURNAL OF MATHEMATICAL PSYCHOLOGY Vol. 37, No. 1, March 1993 All Rights Reserved by Academic Press, New York and London Printed in Belgium Book Review The Psychophysics of Detection N. V. S by STANLEY A. KLEIN AND CHRISTOPHER W. TYLER Norma V. S. Graham is Professor of Psychology at Columbia

Klein, Stanley

173

Transcriptome sequencing to produce a SNP-based genetic map of onion  

Technology Transfer Automated Retrieval System (TEKTRAN)

Sequencing the onion genome is challenging because of its enormous size (16 giga base pairs DNA per haploid genome). Pilot sequencing of onion transcripts showed sufficient numbers of single nucleotide polymorphisms (SNPs) to develop a detailed genetic map. We sequenced 2.5 Roche-454 plates of norma...

174

AVICENA: Gestin Guiada de Procesos en la atencin A. Dez, A. Corts, R.Gil  

E-print Network

Anamnesis Evaluacin Tratamientos Pruebas Va clnica Gestin Organizativa Gestin de Costes y Calidad La adherencia inmediata a normas Calidad BeneficiosExperiencias Ontologa sistematizada en VIH Integracin HCE y sistemas de tratamiento de Ordenes Hospital de la Ribera (Alzira) Programa preventivo de

175

PANTONE 295 PANTONE black tiro Universidad  

E-print Network

seguridad y control de calidad de los servicios médicos y en lo que respecta a la proposición y puesta en marcha de reglamentaciones y normas relativas a la adquisición, instalación, uso y control de sistemas

Vásquez, Carlos

176

Preparado como una iniciativa de NARSTO, esta evaluacin de Ozono (O3  

E-print Network

modelos matemáticos de calidad del aire. Por otro lado, los funcionarios públicos establecieron normas y estrategias de control basadas en evidencias científicas y otros conductos. Por lo tanto, ambas comunidades relacionadas, es una herramienta para aplicar el actual conocimiento científico a la gestión de la calidad del

177

11. Bibliografa -Subsecretaria De Economa, Fomento y Reconstruccin. "D.F.L. N 4. fija texto  

E-print Network

- CNE, "Norma Técnica de Seguridad y Calidad de Servicio". Octubre de 2009, Santiago de Chile - royecto de reglamento para seguridad y calidad de servicio, y servicios complementarios" CNE. Diciembre 2006 - CDEC ­SIC, "Informe final. Estudio Control de frecuencia y determinación de eservas", 30de Abril

Rudnick, Hugh

178

The Voices of Cultural Assimilation in Current Young Adult Novels.  

ERIC Educational Resources Information Center

Presents three renowned writers who have chosen from diverse genres to tell immigrant tales through memoir, contemporary vignettes, and historical fiction. Notes that each author captures very real adolescent voices and their stories. Discusses Frank McCourt's "Angela's Ashes," An Na's "A Step form Heaven," and Norma Fox Mazer's "Goodnight Maman."

Angel, Ann

2003-01-01

179

Search Cornell Search all of LII... Go  

E-print Network

> § 1832 § 1832. THEFT OF TRADE SECRETS (a) Whoever, with intent to convert a trade secret, that is related owner of that trade secret, knowingly-- (1) steals, or without authorization appropriates, takes, Arbitratio... Pittsburgh, PA Norma Chase Criminal Law, Divorce, DUI / DWI, Family Law,... Pittsburgh, PA

Shamos, Michael I.

180

Expanding the Literary Canon  

ERIC Educational Resources Information Center

For most college students, literature courses began in high school and consisted almost entirely of the classics of America and Western Europe. English professor Norma E. Cantu says the emergence of Hispanic literature and its growing popularity on college campuses around the country--and the world--is proof that American literature is expanding

Horwedel, Dina

2007-01-01

181

Frecuencia de Listeria monocytogenes en muestras de tomates (Lycopersicum esculentum) y cilantro (Coriandrum sativum) frescos en tres supermercados de Valencia. Venezuela  

Microsoft Academic Search

RESUMEN. Se determin la frecuencia de L. monocytogenes en tomates y cilantro, de tres diferentes supermercados, ubicados en el Municipio Valencia, Estado Carabobo, durante ocho semanas. Se evaluaron 192 muestras: 96 de tomates y 96 de cilantro. Procesa- miento y anlisis microbiolgico, segn Normas Industriales COVENIN 3718:2001. Paquete estadstico SPSS versin 12.0. Se aplic prueba de Kolmogorov Smirnov, test de

Luis Guillermo; Ramrez Mrida; Alba Morn de Salim; Ana Yudith; Alfieri Graterol; Orlando Gamboa

182

251Reprod. Nutr. Dev. 44 (2004) 251259 INRA, EDP Sciences, 2004  

E-print Network

in nursing goats Horacio HERNANDEZa,b, J. Alberto DELGADILLOb, Norma SERAFÍNa, Alma D. RODRÍGUEZa, Pascal March 2004) Abstract ­ Parturient goats rapidly develop exclusive nursing of their own litter duration depends on the presence of the kid. In cattle, maternal selectivity is one of the factors

Paris-Sud XI, Université de

183

20 Years and Counting  

ERIC Educational Resources Information Center

In commemoration of the Librarian of the Year Award's 20th anniversary, this article presents brief vignettes on all 19 of the title holders. When "Library Journal" named them Librarians of the Year, these inimitable 19 (for the 20th, Norma Blake, see EJ788676) had singled themselves out as risk takers, visionaries, bulldogs, pragmatists,

Kuzyk, Raya

2008-01-01

184

UNIVERSIDADE DE BRASLIA PROGRAMA DE PS-GRADUAO EM ANTROPOLOGIA SOCIAL  

E-print Network

UNIVERSIDADE DE BRASLIA PROGRAMA DE PS-GRADUAO EM ANTROPOLOGIA SOCIAL EDITAL N. 04/2012 SELEO DE CANDIDATOS S VAGAS DO PROGRAMA DE PS-GRADUAO EM ANTROPOLOGIA SOCIAL PARA O CURSO DE-Graduao em Antropologia Social, no uso de suas atribuies legais, torna pblico e estabelece as normas do

Maier, Rudolf Richard

185

UNIVERSIDADE DE BRASLIA PROGRAMA DE PS-GRADUAO EM ANTROPOLOGIA SOCIAL  

E-print Network

UNIVERSIDADE DE BRASLIA PROGRAMA DE PS-GRADUAO EM ANTROPOLOGIA SOCIAL EDITAL No. 02/2011 SELEO DE CANDIDATOS S VAGAS DO PROGRAMA DE PS-GRADUAO EM ANTROPOLOGIA SOCIAL PARA O CURSO DE-Graduao em Antropologia Social, no uso de suas atribuies legais, torna pblico e estabelece as normas do

Lucero, Jorge Carlos

186

UNIVERSIDADE DE BRASLIA PROGRAMA DE PS-GRADUAO EM ANTROPOLOGIA SOCIAL  

E-print Network

UNIVERSIDADE DE BRASLIA PROGRAMA DE PS-GRADUAO EM ANTROPOLOGIA SOCIAL EDITAL No. 02/2010 SELEO DE CANDIDATOS S VAGAS DO PROGRAMA DE PS-GRADUAO EM ANTROPOLOGIA SOCIAL PARA O CURSO DE-Graduao em Antropologia Social, no uso de suas atribuies legais, torna pblico e estabelece as normas do

Maier, Rudolf Richard

187

limite", alerta de Reitores  

E-print Network

as instituições de fazerem novas contratações, a menos que apresentem uma redu- ção de pelo menos 3% nos sa- lários. Os reitores apelaram à con- tinuidade da norma que pos- sibilita novas contratações, desde que

Instituto de Sistemas e Robotica

188

Impacto Econmico en la Salud por Contaminacin del Aire en Lima Metropolitana  

Microsoft Academic Search

I. Objetivos y Justificacin del Proyecto: La contaminacin ambiental es un problema que se ha venido agravando en las ?ltimas dcadas en el Per, sin embargo, en la prctica es poco lo que se ha hecho para reducirla a niveles aceptables o permitidos. A principios de la presente dcada se han emitido ciertas normas legales que buscan regular los niveles

Juan Jos Miranda

189

Department of Family and Consumer Science News  

E-print Network

5 Department of Family and Consumer Science News Dr. Jamie Kridler and Beth Lowe, along at the Tennessee Association of Family and Consumer Sciences Annual Conference in Paris Landing. Roberts' was "Mary- gramming" by Norma Myers,Archives, for $16,615 from the National Academy of Re- cording Arts and Sciences

Hong, Don

190

A Directory of Dedicated Commemorative Groves, Trees and Display Plantings (sorted by common name)  

E-print Network

Catalpa, Purple Leaf Catalpa x erubescens `Purpurea' White, Betty Marie "Cedar" species and cultivars Slade, H. Eugene & Norma H. Cedar, Alaskan Yellow Chamaecyparis nootkatensis Stookey, William Cedar, Western Red Thuja plicata Verner, Roy Scott Chamaecyparis, species and cultivars derived from Asia

Waits, Lisette

191

University of Sussex Honorary Degrees Committee  

E-print Network

Frederick Attenborough DOCTOR OF SCIENCE 1979 Backwell Jenny Backwell DOCTOR OF LAWS 1998 Bader Dr Alfred Bhan DOCTOR OF SCIENCE 2012 Binnie Norma Wallace Binnie MASTER OF ARTS 1999 Birch Roger Birch DOCTOR Professor The Hon Kamau Brathwaite DOCTOR OF LETTERS 2002 Brendel Alfred Brendel DOCTOR OF LETTERS 1981

Sussex, University of

192

El modelo SFI: propuesta de inclusin de variables informacionales y adaptacin de la funcin de utilidad  

Microsoft Academic Search

Este trabajo propone adaptar el modelo burstil artificial de Santa Fe en varios puntos resumidos en: sustitucin de la funcin de utilidad exponencial por la potencial, heterogeneidad parcial de dicha funcin, mejora del proceso de aprendizaje, inclusin de normas de contagio, de creencias, y de influencia informacional, y heterogeneidad de horizontes temporales. El trabajo ofrece una introduccin a la Econofsica,

Salvador Roj Ferrari

2003-01-01

193

Analysis and Optimization of Classifier Error Estimator Performance within a Bayesian Modeling Framework  

E-print Network

10-fol d CV paediatri c rha bdo m yosarcoma s (RMS) :e m br yona l(ERMS )V S al veola r (ARMS )[14 ] 26 10-fol d CV ora lsquamou s cel lcarcinom a V S norma ls pecimen s [15 ] 19 3-fol d CV gliomas...

Dalton, Lori Anne

2012-07-16

194

Locust skin: a thesis in creative nonfiction  

E-print Network

with the struggles voiced in the narrative. Through research and the study of works by authors such as Mary Karr, Terry Tempest Williams and Norma Cant, I was able to establish a framework for the creative portion of the thesis. In writing the stories, I discovered...

Poff, Terri Lynn

2009-05-15

195

Etude de l'volution de la nature des triglycrides du lait, pendant les trois premires semaines de lactation, chez la lapine  

E-print Network

de lactation, chez la lapine normale ou tarie précocement J. P. PERRET, A. DORIER C. BACQUES Martine triglyceride patterns during the first three weeks of lactation in the norma or early drying-off doe rabbit of lactation) does to specify the modality of lipogenesis. Normal milk is gradually enriched in short

Paris-Sud XI, Université de

196

El mayordomo y la contabilidad parroquial. Control y rendicin de cuentas. Villa de Agimes 1730-1830. (The administrator and the parochial accounting: Control and accounts rendering. Agimes town 1730-1830)  

Microsoft Academic Search

La institucin parroquial, pilar fundamental en la historia de la Iglesia, cobra importancia como fuente generadora de documentos a mediados del siglo XVI con las normas cannicas que emanan del Concilio de Trento, celebrado entre 1543 y 1562, al legislarse diversos captulos sobre la vida y la actividad parroquial. Esta circunstancia implica que la parroquia sea fuente de produccin documental

Mercedes Calvo Cruz; Candelaria Castro Perez

2005-01-01

197

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

198

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

199

PLAN PLURIANUAL DE FINANCIACIN DEL  

E-print Network

Sistema Universitario Pblico Valenciano (SUPV) es un instrumento de poltica universitaria que ha de las expectativas puestas en ellas. Por eso es muy importante que dispongan de los instrumentos adecuados para obtener los resultados esperados. Entre dichos instrumentos se encuentran el marco norma

Escolano, Francisco

200

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

201

Analysis of HRCT-derived xylem network reveals reverse flow in some vessels  

Technology Transfer Automated Retrieval System (TEKTRAN)

Flow in xylem vessels is modeled based on constructions of three dimensional xylem networks derived from High Resolution Computed Tomography (HRCT) images of grapevine (Vitis vinifera) stems. Flow in 6-14% of the vessels was found to be oriented in the opposite direction to the bulk flow under norma...

202

NUOVO DISEGNO DI UNA PROTESI TRANS-TIBIALE IN MATERIALE COMPOSITO  

Microsoft Academic Search

Sommario In questo lavoro 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

203

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

204

Student Awards Picnic (May 12th, 2011) Department of Earth and Planetary  

E-print Network

for Excellence in Research by an Undergraduate Student in Geological Sciences - Helen Janiszewski - George H. Cook Awards for Department Service by a graduate and undergraduate student - Linda Martin and Jason in Geological Sciences - Helen Janiszewski - (Taskesti, Turkey / BHNSFS) Larry & Norma Gordon Scholarship

205

INTEGRAL detection of 4U 1630-472 in outburst  

NASA Astrophysics Data System (ADS)

During the observations of Galactic Spiral Arms Norma/Perseus performed on 2015 February 26 from 07:34 to 11:15 UTC, the JEM-X instruments (3-30 keV) on board INTEGRAl detected the black-hole candidate 4U 1630-47.

Bodagh, Y. Wang C. Ferrigno A.

2015-02-01

206

PPRROOPPUUEESSTTAASS PPAARRAA LLAA SSEEGGUURRIIDDAADD AALLIIMMEENNTTAARRIIAA DDEESSDDEE LLAA PPEERRSSPPEECCTTIIVVAA RREEGGIIOONNAALL DDEELL SSIISSTTEEMMAA DDEE IINNTTEEGGRRAACCIINN CCEENNTTRROOAAMMEERRIICCAANNAA ((SSIICCAA))  

E-print Network

comercio internacional a los pases en Desarrollo. Es necesario dar prioridad a los principios y proyectos alimentaria. Las normas de carcter internacional, el Codex Alimentarius y los Acuerdos sobre Agricultura de internacional clave para superar la pobreza y la desnutricin, que permita generar proyectos de desarrollo rural

Paris-Sud XI, Universit de

207

TheStatesPartiestothisTreaty, Guidedbythepurposesandprinciplesof  

E-print Network

establece normas internacionales comunes para regular el comercio internacional de armas convencionales transferencias responsables Tratado Comercio Armas sobre de el #12;El Tratado sobre el Comercio de Armas Comercio de Armas ha quedado abierto a la firma el 3 de junio de 2013 en la Sede de las Naciones Unidas en

Cambridge, University of

208

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.

209

Phylogeny, Neoteny and Growth of the Cranial Base in Hominoids  

Microsoft Academic Search

This study tests the hypothesis that there is a general pattern in the growth of the cranial base of Homo sapiens that is essentially neotenous [Gould, 1977]. Juvenile and adult crania of Homo sapiens, Gorilla gorilla, Pan troglodytes and Pongo pygmaeus were studied and the cross-sectional growth curves for 10 measurements made on the cranial base (as viewed in norma

M. C. Dean; B. A. Wood

1984-01-01

210

Medicare, Medicaid and the elderly's access to health care  

E-print Network

MEDICARE, MEDICAID, AND THE ELDERLY'S ACCESS TO HEALTH CARE A Thesis by CONNIE LEA ARNOLD Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... December 1992 Major Subject: Sociology MEDICARE, MEDICAID, AND THE ELDERLY'S ACCESS TO HEALTH CARE A Thesis by CONNIE LEA ARNOLD Approved as to style and content by: Wm. Alex McIntosh (Chair of Committee) Norma Williams (Member) Donald Sweeney...

Arnold, Connie Lea

1992-01-01

211

Adolescent Cigarette Smoking: Health-Related Behavior or Normative Transgression?  

Microsoft Academic Search

Relations among measures of adolescent behavior were examined to determine whether cigarette smoking fits into a structure of problem behaviorsbehaviors that involve norma- tive transgressionor a structure of health-related behaviors, or both. In an ethnically and socioeconomically diverse sample of 1782 male and female high school adolescents, four first-order problem behavior latent variablessexual intercourse experience, alcohol abuse, illicit drug use,

Mark S. Turbin; Richard Jessor; Frances M. Costa

2000-01-01

212

Pgina 1 de 18 CDIGO DE CONDUCTA DEL CENTRO DE  

E-print Network

Página 1 de 18 C?DIGO DE CONDUCTA DEL CENTRO DE INVESTIGACION Y DE ESTUDIOS AVANZADOS DEL INSTITUTO CONDUCTA: I. Conocimiento y aplicación de las leyes y normas. 1 II. Uso del cargo público. 2 III. Uso y T?RMINOS. 13 #12;Página 2 de 18 C?DIGO DE CONDUCTA DEL CENTRO DE INVESTIGACION Y DE ESTUDIOS AVANZADOS DEL

213

Una decada de teatro guatemalteco, 1962-1973.  

E-print Network

: La Compaa Nacional de Teatro se organiz en agosto de 1964, como un intento serio para la formacin de un equipo profesional de artistas y tc nicos teatrales que estuviera en condiciones de presentar, dentro de un repertorio cuidadosamente... las temporadas (falta de local, equipos y tc nicos). . .8 SPRING 1975 61 El Departamento de Teatro de Bellas Artes fue creado, tambin, en 1964, habiendo sido nombrada para fungir como Jefe la actriz Norma P. de Carrillo, quien lo es todava en...

Acuñ a, René

1975-04-01

214

UNIVERSIDAD SIMN BOLVAR DIRECCIN DE INGENIERA DE INFORMACIN  

E-print Network

estructuras de control, servicio, planificación y gestión. En este sentido, la Dirección de Gestión de Capital no fue implementada de forma integral ni se establecieron las normas de control y seguimiento a la creación de una cultura basada en la calidad y la Dirección de Ingeniería de Información 4 #12

Vásquez, Carlos

215

UNIVERSIDADE DE BRASLIA PROGRAMA DE PS-GRADUAO EM BIOLOGIA ANIMAL  

E-print Network

UNIVERSIDADE DE BRASÍLIA PROGRAMA DE P?S-GRADUA??O EM BIOLOGIA ANIMAL EDITAL No. 01/2011 SELE??O DE CANDIDATOS ?S VAGAS DO PROGRAMA DE P?S-GRADUA??O EM BIOLOGIA ANIMAL PARA OS CURSOS DE MESTRADO ACAD?MICO E-Graduação em Biologia Animal, no uso de suas atribuições legais, torna público e estabelece as normas do

Maier, Rudolf Richard

216

Segurana de aplicaes empresariais em arquitecturas de servios  

Microsoft Academic Search

As organiza??es procuram agilizar os seus sistemas de informa??o para melhor responder ao permanente desafio de adapta??o aos requisitos de neg?cio. As arquitecturas de servi?os e os Web Services s?o uma proposta para estruturar os sistemas com maior flexibilidade, reutiliza??o e interoperabilidade. No entanto, as importantes normas e implementa??es de seguran?a n?o foram ainda suficientemente avaliadas na pr?tica. Esta tese

Miguel Filipe Leitao Pardal

2006-01-01

217

PROGRAMA DE PS-GRADUAO EM FILOSOFIA DA UNIVERSIDADE DE BRASLIA  

E-print Network

PROGRAMA DE P?S-GRADUA??O EM FILOSOFIA DA UNIVERSIDADE DE BRASÍLIA EDITAL PPG EM FILOSOFIA Nº 1/2011 SELE??O DE CANDIDATOS AO PROGRAMA DE P?S-GRADUA??O EM FILOSOFIA: CURSO DE MESTRADO ACAD?MICO, PARA Filosofia, no uso de suas atribuições legais, torna público e estabelece as normas do processo seletivo para

Lucero, Jorge Carlos

218

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

219

Model-based online learning with kernels.  

PubMed

New optimization models and algorithms for online learning with Kernels (OLK) in classification, regression, and novelty detection are proposed in a reproducing Kernel Hilbert space. Unlike the stochastic gradient descent algorithm, called the naive online Reg minimization algorithm (NORMA), OLK algorithms are obtained by solving a constrained optimization problem based on the proposed models. By exploiting the techniques of the Lagrange dual problem like Vapnik's support vector machine (SVM), the solution of the optimization problem can be obtained iteratively and the iteration process is similar to that of the NORMA. This further strengthens the foundation of OLK and enriches the research area of SVM. We also apply the obtained OLK algorithms to problems in classification, regression, and novelty detection, including real time background substraction, to show their effectiveness. It is illustrated that, based on the experimental results of both classification and regression, the accuracy of OLK algorithms is comparable with traditional SVM-based algorithms, such as SVM and least square SVM (LS-SVM), and with the state-of-the-art algorithms, such as Kernel recursive least square (KRLS) method and projectron method, while it is slightly higher than that of NORMA. On the other hand, the computational cost of the OLK algorithm is comparable with or slightly lower than existing online methods, such as above mentioned NORMA, KRLS, and projectron methods, but much lower than that of SVM-based algorithms. In addition, different from SVM and LS-SVM, it is possible for OLK algorithms to be applied to non-stationary problems. Also, the applicability of OLK in novelty detection is illustrated by simulation results. PMID:24808310

Li, Guoqi; Wen, Changyun; Li, Zheng Guo; Zhang, Aimin; Yang, Feng; Mao, Kezhi

2013-03-01

220

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 Jchym et al. (2014).

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

2015-02-01

221

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

222

Geological mapping of the Rainbow Massif, Mid-Atlantic Ridge, 3614'N  

NASA Astrophysics Data System (ADS)

The Rainbow hydrothermal field at 3614'N on the Mid-Atlantic Ridge is one of the few known sites hosted in ultramafic basement. The Rainbow Massif is located along the non-transform offset between the AMAR and South AMAR second-order ridge segments, and presents the characteristic dome morphology of oceanic core complexes, although no corrugated surface has been observed so far. One of the objectives of Cruises MOMAR DREAM (July 2007, R/V Pourquoi Pas ?; Aug-Sept 2008, R/V Atalante) was to study the petrological and structural context of the hydrothermal system at the scale of the Rainbow Massif. Our geological sampling complements previous ones achieved during Cruises FLORES (1997) and IRIS (2001), and consisted in dredge hauls, and submersible dives by manned submersible Nautile and ROV Victor. The tectonics of the Rainbow Massif is dominated by a N-S trending fault pattern on the western flank of the massif, and a series of SW-NW ridges on its northeastern side. The active hydrothermal site is located in the area were these two systems crosscut. The most abundant recovered rock type is peridotite (harzburgite and dunite) that presents a variety of serpentinization styles and intensity, and a variety of deformation styles (commonly undeformed, sometimes displaying ductile or brittle foliations). Serpentinites are frequently oxidized. Some peridotite samples have melt impregnation textures. Massive chromitite was recovered in one dredge haul. Variously evolved gabbroic rocks were collected as discrete samples or as centimeter to decimeter-thick dikes in peridotites. Basalts and fresh basaltic glass were also sampled in talus and sediments on the southwestern and northeastern flanks of the massif. Our sampling is consistent with the lithological variability encountered in oceanic core complexes along the Mid-Atlantic Ridge and Southwest Indian Ridge. The stockwork of the hydrothermal system has been sampled on the western side of the present-day hydrothermal field, along N-S trending normal fault scarps, and within the talus underneath. It is made of massive sulfides, strongly altered serpentinites, and breccias containing elements of iron sulfide/oxide impregnated serpentinites. * K. Bukas, V. Cueff Gauchard, L. Durand, F. Gaill, C. Konn, F. Lartaud, N. Le Bris, G. Musset, A. Nunes, J. Renard, V. Riou, A. Tasiemski, P. Torres, I. Vojdani, M. Zbinden

Ildefonse, B.; Fouquet, Y.; Hois, E.; Dyment, J.; Gente, P.; Thibaud, R.; Bissessur, D.; Yatheesh, V.; Momardream 2008 Scientific Party*, T.

2008-12-01

223

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

224

Do decreased trace metal concentrations in surficial skagerrak sediments over the last 15-30 years indicate decreased pollution?  

PubMed

Varying concentrations of Zn, Pb and Cu over the last 15-30 years (1963-1991) have been found in two undisturbed cores with preserved sediment-water interfaces from the Skagerrak (Station A: 645 m, Station B: 405 m water depth). Mass Accumulation Rates (MAR) in g/m2/year were used to resolve the question of increased or decreased supply. Station A-MAR increased exponentially: Zn from 0.05 to 0.28, Cu from 0.009 to 0.044, and Pb from 0.003 to 0.114 g/m2/year, while concentrations did not show this increase over the last 15-30 years. Station B-MAR increased exponentially: Zn from 0.07 to 0.29, Cu from 0.013 to 0.049, and Pb from 0.014 to 0.114 g/m2/year, while concentrations decreased over the same period. MAR indicated that both stations received similar trace metal flux. Release of trace metals from the sediment to the water column and/or dilution by water and organic matter within the upper few centimeters of the sediment accounted for the concentration decrease at both stations. MAR revealed an increase in trace metal supply, and thus an increase in pollution, over the last 15-30 years, although concentrations indicated the opposite. PMID:15091692

Paetzel, M; Schrader, H; Bjerkli, K

1994-01-01

225

Extinction risk and structure of a food web model  

NASA Astrophysics Data System (ADS)

We investigate in detail the model of a trophic web proposed by Amaral and Meyer [Phys. Rev. Lett. 82, 652 (1999)]. We focus on small-size systems that are relevant for real biological food webs and for which the fluctuations play an important role. We show, using Monte Carlo simulations, that such webs can be nonviable, leading to extinction of all species in small and/or weakly coupled systems. Estimations of the extinction times and survival chances are also given. We show that before the extinction the fraction of highly connected species (omnivores) is increasing. Viable food webs exhibit a pyramidal structure, where the density of occupied niches is higher at lower trophic levels, and moreover the occupations of adjacent levels are closely correlated. We also demonstrate that the distribution of the lengths of food chains has an exponential character and changes weakly with the parameters of the model. On the contrary, the distribution of avalanche sizes of the extinct species depends strongly on the connectedness of the web. For rather loosely connected systems, we recover the power-law type of behavior with the same exponent as found in earlier studies, while for densely connected webs the distribution is not of a power-law type.

P?kalski, Andrzej; Szwabi?ski, Janusz; Bena, Ioana; Droz, Michel

2008-03-01

226

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

227

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

228

Extinction risk and structure of a food web model  

E-print Network

We investigate in detail the model of a trophic web proposed by Amaral and Meyer [Phys. Rev. Lett. 82, 652 (1999)]. We focused on small-size systems that are relevant for real biological food webs and for which the fluctuations are playing an important role. We show, using Monte Carlo simulations, that such webs can be non-viable, leading to extinction of all species in small and/or weakly coupled systems. Estimations of the extinction times and survival chances are also given. We show that before the extinction the fraction of highly-connected species ("omnivores") is increasing. Viable food webs exhibit a pyramidal structure, where the density of occupied niches is higher at lower trophic levels, and moreover the occupations of adjacent levels are closely correlated. We also demonstrate that the distribution of the lengths of food chains has an exponential character and changes weakly with the parameters of the model. On the contrary, the distribution of avalanche sizes of the extinct species depends strong...

Pȩkalski, A; Bena, I; Droz, M

2007-01-01

229

Distribution of parvalbumin-immunoreactive cells and fibers in the human amygdaloid complex.  

PubMed

The calcium-binding protein, parvalbumin, was localized immunohistochemically in the human amygdaloid complex. Neuronal cell bodies and fibers that are immunoreactive to parvalbumin were observed in most of the amygdaloid nuclei and cortical areas. Three types of immunoreactive aspiny neurons, ranging from small spherical cells (type 1) to large multipolar cells (type 2) and fusiform cells (type 3), were observed. The densities of the types of neurons that were parvalbumin-immunoreactive varied in the different regions of the amygdala. The highest densities of parvalbumin-immunoreactive neurons were observed in the lateral nucleus, in the magnocellular and intermediate divisions of the basal nucleus, in the magnocellular division of the accessory basal nucleus and in the amygdalohippocampal area. The regions containing the lowest density of parvalbumin-immunoreactive cells were the paralaminar nucleus, the parvicellular division of the basal nucleus, the central nucleus, the medial nucleus and the anterior cortical nucleus. In general, the distribution of immunoreactive fibers and terminals paralleled that of immunoreactive cells. Parvalbumin-immunoreactive varicose fibers formed basket-like plexi and cartridges around the unstained neurons, which suggests that parvalbumin is located in GABAergic basket cells and chandelier cells, respectively. The distribution of parvalbumin-immunoreactive profiles in the human amygdaloid complex was similar to, rather than different from that previously reported in the monkey amygdala (Pitknen and Amaral [1993] J. Comp. Neurol. 331:14-36). This study provides baseline information about the organization of GABAergic inhibitory circuitries in the human amygdaloid complex. PMID:8522643

Sorvari, H; Soininen, H; Paljrvi, L; Karkola, K; Pitknen, A

1995-09-18

230

Neural correlates of abstract verb processing.  

PubMed

The present study investigated the neural correlates of the processing of abstract (low imageability) verbs. An extensive body of literature has investigated concrete versus abstract nouns but little is known about how abstract verbs are processed. Spanish abstract verbs including emotion verbs (e.g., amar, "to love"; molestar, "to annoy") were compared to concrete verbs (e.g., llevar, "to carry"; arrastrar, "to drag"). Results indicated that abstract verbs elicited stronger activity in regions previously associated with semantic retrieval such as inferior frontal, anterior temporal, and posterior temporal regions, and that concrete and abstract activation networks (compared to that of pseudoverbs) were partially distinct, with concrete verbs eliciting more posterior activity in these regions. In contrast to previous studies investigating nouns, verbs strongly engage both left and right inferior frontal gyri, suggesting, as previously found, that right prefrontal cortex aids difficult semantic retrieval. Together with previous evidence demonstrating nonverbal conceptual roles for the active regions as well as experiential content for abstract word meanings, our results suggest that abstract verbs impose greater demands on semantic retrieval or property integration, and are less consistent with the view that abstract words recruit left-lateralized regions because they activate verbal codes or context, as claimed by proponents of the dual-code theory. Moreover, our results are consistent with distributed accounts of semantic memory because distributed networks may coexist with varying retrieval demands. PMID:20044889

Rodrguez-Ferreiro, Javier; Gennari, Silvia P; Davies, Robert; Cuetos, Fernando

2011-01-01

231

Securing wide appreciation of health statistics  

PubMed Central

All the authors are agreed on the need for a certain publicizing of health statistics, but do Amaral Pyrrait points out that the medical profession prefers to convince itself rather than to be convinced. While there is great utility in articles and reviews in the professional press (especially for paramedical personnel) Aubenque, de Groot, and Kohn show how appreciation can effectively be secured by making statistics more easily understandable to the non-expert by, for instance, including readable commentaries in official publications, simplifying charts and tables, and preparing simple manuals on statistical methods. Aubenque and Kohn also stress the importance of linking health statistics to other economic and social information. Benjamin suggests that the principles of market research could to advantage be applied to health statistics to determine the precise needs of the consumers. At the same time, Aubenque points out that the value of the ultimate results must be clear to those who provide the data; for this, Kohn suggests that the enumerators must know exactly what is wanted and why. There is general agreement that some explanation of statistical methods and their uses should be given in the curricula of medical schools and that lectures and postgraduate courses should be arranged for practising physicians. PMID:13199668

Pyrrait, A. M. DO Amaral; Aubenque, M. J.; Benjamin, B.; DE Groot, Meindert J. W.; Kohn, R.

1954-01-01

232

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.; Lmo, Terje

2012-01-01

233

Aplicacin del Teorema de Nekhorochev para tiempos de estabilidad en Mecnica Celeste  

NASA Astrophysics Data System (ADS)

En Mecnica Celeste, uno de los problemas centrales consiste en la determinacin de los tiempos de estabilidad. El teorema de Nekhorochev proporciona un mtodo para dicho estudio, para un sistema determinado por un hamiltoniano descripto en las variables accin-ngulo. El trabajo consiste en la acotacin tanto del potencial perturbador y de la matriz hessiana del hamiltoniano integrable para determinar luego el tiempo de estabilidad de dicho sistema, donde por estabilidad se entiende la separacin en norma infinito en el espacio de las acciones.

Miloni, O.; Nez, J.; Brunini, A.

234

Diseo de un programa de base de datos para el seguimiento de pacientes, aplicando el Real Decreto 1566\\/1998 sobre control de calidad en radioterapia  

Microsoft Academic Search

Resumen\\u000a IntroduccinEn julio de 1999, siguiendo el Real Decreto 1566\\/1998 y las normas ISO 9002, fue diseado un programa informtico para analizar\\u000a anualmente toxicidad, control de la enfermedad y supervivencia.\\u000a \\u000a \\u000a \\u000a Material y mtodosSe analizaron un total de 2.192 pacientes tratados en el Servicio de Oncologa Radioterpica hasta mayo de 2005. El 51,8%\\u000a de los pacientes fueron estadios iniciales y el

Jos Lpez Torrecilla; Desamparados Gonzlez Sanchis; Ana Hernndez Machancoses; Piedad Almendros Blanco; Enrique Garca Miragall; Eugenio Lpez Taberner

2004-01-01

235

Bilingual Humor, Verbal Hygiene, and the Gendered Contradictions of Cultural Citizenship in Early Mexican American Comedy  

E-print Network

://hdl.handle.net/1808/9943 2 In the wake of the literary and theatrical renaissance that accompanied the Chicana/o civil rights movement of the 1960s and 1970s, the terms Chicana/o theatre and bilingual theatre have become almost synonymous in the southwestern... served as concubine and translator to conquistador Hernn Corts. As literary critic Norma Alarcn has noted, Malintzin, often known by the epithet Malinche, has acquired an Eve-like status in Mexican nationalism, becoming both a symbol of treachery...

Haney, Peter C.

2003-01-01

236

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

237

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

238

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

239

Lie detection by functional magnetic resonance imaging  

Microsoft Academic Search

Abstract :Th eaccurat edetectio no fdeceptio no rlyin gi sa,challeng et oexpert si nman,yscientific disciplines .T oinvestigat ei fspecifi ccerebra lactivatio ncharacterize dfeigne dmemor yimpairment ,six health ymal evolunteer sunderwen,tfunctiona lmagneti cresonanc,eimagin gwit ha block-desig nparadigm whil ethe yperforme,dforced-choic ememor,ytask sinvolvin gbot hsimulate dmalingerin,gan dunder norma,lcontro lconditions .Malingerin gtha tdemonstrate,dth eexistenc ean dinvolvemen,to fa prefrontalparietal-sub-cortica lcircui twit hfeigne dmemor yimpairmen

Tatia M. C. Lee; Ho-Ling Liu; Li-Hai Tan; Chetwyn C. H. Chan; Srikanth Mahankali; Ching-Mei Feng; Jinwen Hou; Peter T. Fox; Jia-Hong Gao

2002-01-01

240

High resolution topography of the Rainbow hydrothermal area, Mid-Atlantic Ridge, 36 14 N  

NASA Astrophysics Data System (ADS)

The Rainbow hydrothermal field at 36 14 N on the Mid-Atlantic Ridge is one of the few known sites hosted in ultramafic environment. The active site is located on a dome structure in the non-transform offset between the AMAR and South AMAR second-order ridge segments. One of the objectives of Cruise MOMAR DREAM (Aug-Sept 2008, R/V Atalante and ROV Victor) was a near-bottom detailed and exhaustive mapping of the hydrothermal site and its vicinities using the multibeam echosounder Reson SeaBat 7125 (400 Khz) and the high sensitivity photographic camera OTUS installed on ROV Victor. This first high resolution survey of the Rainbow massif has provided bathymetric maps with a resolution of a centimeter in depth and space for the surveys carried out at the altitude of 10 m (close to Site Rainbow), and some ten centimeters for the surveys at 50 m (a larger area, 4x3 km long). The frequency of the pings is 7 cycles by second for 512 beams with an opening of 150 and a speed of the ROV of 0.3-0.4 m/s. The data have been processed with the CARAIBES software of IFREMER. The ROV is positioned with the Posidonia Ultra Short Baseline system (USBL) and an estimated navigation from the loch and heading of the vehicle. The active hydrothermal site extends along an EW direction on about 200 m. It is localized on one important mound, around 20 m in diameter, which displays the highest chimneys like "Thermitiere". Small chimneys are sparse at the east of this mound, and another inactive mound is located 200m in the northeast. The whole hydrothermal area is located just north of a highly fractured domain made of a series of north-south high- angle normal faults making steps at least 40 meters high. This 400 m wide tectonic area extends to the south on about 600-700 m. The faults give access to the stockwork of the hydrothermal system, which has been sampled. North of the hydrothermal area, a 400 m large landslide cut across the serpentinite environment. At a wider scale, the tectonics of the Rainbow Massif is dominated by a N-S trending fault pattern on its western flank, and a series of SW-NE ridges on its northeastern side. These ridges are bordered by a series of normal fault with facing-slopes to the south-east. Smaller NW-SE oriented fractures seem to affect the whole Rainbow massif. In conclusion, the Rainbow massif is highly tectonized by normal faults oriented along three different directions. No evidence of the large low-angle fault system predicted by the core complex model could be observed. Momardream party : K. Bukas, V. Cueff Gauchard, L. Durand, F. Gaill, C. Konn, F. Lartaud, N. Le Bris, G. Musset, A. Nunes, J. Renard, V. Riou, A. Tasiemski, P. Torres, I. Vojdani, M. Zbinden

Gente, P.; Thibaud, R.; Dyment, J.; Fouquet, Y.; Ildefonse, B.; Hoise, E.; Bissessur, D.; Yatheesh, V.; Scientific Party, M.

2008-12-01

241

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. Holzlhner 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

242

Distribution of oceanic and continental leads in the Arabian-Nubian Shield  

USGS Publications Warehouse

New common lead data for feldspar, whole-rock, and galena samples from the Arabian-Nubian Shield, together with data from previous work, can be divided into two main groups. Group I leads have oceanic (mantle) characteristics, whereas group II leads have incorporated a continental-crustal component of at least early Proterozoic age. The group I leads are found in rocks from the Red Sea Hills of Egypt and the western and southern parts of the Arabian Shield. Group II leads are found in rocks from the northeastern and eastern parts of the Arabian Shield, as well as from the southeastern Shield near Najran. They are also found in rocks to the south in Yemen, to the east in Oman, and to the west at Aswan, Egypt. This distribution of data suggests that the Arabian-Nubian Shield has an oceanic core flanked by rocks that have developed, at least in part, from older continental material. Two mechanisms are suggested by which this older lead component could have been incorporated into the late Proterozoic rocks, and each may have operated in different parts of the Shield. The older lead component either was derived directly from an underlying early Proterozoic basement or was incorporated from subducted pelagic sediments or sediments derived from an adjacent continent. New U-Pb zircon data indicate the presence of an early Proterozoic basement southeast of Jabal Dahul in the eastern Arabian Shield. These data, together with 2,000-Ma-old zircons from the Al Amar fault zone, verify the implication of the common lead data that at least a part of the eastern Arabian Shield has an older continental basement. Because continental margins are particularly favorable locations for development of ore deposits, these findings may have important economic implications, particularly for tin, tungsten, and molybdenum exploration. ?? 1983 Springer-Verlag.

Stacey, J.S.; Stoeser, D.B.

1983-01-01

243

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 Purdues 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

244

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

245

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

246

Dynamics of sleep-wake cyclicity in developing rats  

PubMed Central

Adult mammals cycle between periods of sleep and wakefulness. Recent assessments of these cycles in humans and other mammals [Lo, C. C., Amaral, L. A. N., Havlin, S., Ivanov, P. Ch., Penzel, T., Peter, J. H. & Stanley, H. E. (2002) Europhys. Lett. 57, 625-631 and Lo, C. C., Chou, T., Penzel, T., Scammell, T. E., Strecker, R. E., Stanley, H. E. & Ivanov, P. Ch. (2004) Proc. Natl. Acad. Sci. 101, 17545-17548] indicate that sleep bout durations exhibit an exponential distribution, whereas wake bout durations exhibit a power-law distribution. Moreover, it was found that wake bout distributions, but not sleep bout distributions, exhibit scale invariance across mammals of different body sizes. Here we test the generalizability of these findings by examining the distributions of sleep and wake bout durations in infant rats between 2 and 21 days of age. In agreement with Lo et al., we find that sleep bout durations exhibit exponential distributions at all ages examined. In contrast, however, wake bout durations also exhibit exponential distributions at the younger ages, with a clear power-law distribution only emerging at the older ages. Further analyses failed to find substantial evidence either of short- or long-term correlations in the data, thus suggesting that the durations of current sleep and wake bouts evolve through time without memory of the durations of preceding bouts. These findings further support the notion that bouts of sleep and wakefulness are regulated independently. Moreover, in light of recent evidence that developmental changes in sleep and wake bouts can be attributed in part to increasing forebrain influences, these findings suggest the possibility of identifying specific neural circuits that modulate the changing complexity of sleep and wake dynamics during development. PMID:16192355

Blumberg, Mark S.; Seelke, Adele M. H.; Lowen, Steven B.; Karlsson, Karl .

2005-01-01

247

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 S Stoppelli, Illona Maria; Crestana, Slvio

2005-07-01

248

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

249

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; Vzquez, Ruben A.; Costa, Edgardo; Perren, Gabriel; Moitinho, Andr

2010-08-01

250

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

251

GALAXY CLUSTERS IN THE SWIFT/BAT ERA. II. 10 MORE CLUSTERS DETECTED ABOVE 15 keV  

SciTech Connect

We report on the discovery of 10 additional galaxy clusters detected in the ongoing Swift/Burst Alert Telescope (BAT) all-sky survey. Among the newly BAT-discovered clusters there are Bullet, A85, Norma, and PKS 0745-19. Norma is the only cluster, among those presented here, which is resolved by BAT. For all the clusters, we perform a detailed spectral analysis using XMM-Newton and Swift/BAT data to investigate the presence of a hard (non-thermal) X-ray excess. We find that in most cases the clusters' emission in the 0.3-200 keV band can be explained by a multi-temperature thermal model confirming our previous results. For two clusters (Bullet and A3667), we find evidence for the presence of a hard X-ray excess. In the case of the Bullet cluster, our analysis confirms the presence of a non-thermal, power-law-like, component with a 20-100 keV flux of 3.4 x 10{sup -12} erg cm{sup -2} s{sup -1} as detected in previous studies. For A3667, the excess emission can be successfully modeled as a hot component (kT {approx} 13 keV). We thus conclude that the hard X-ray emission from galaxy clusters (except the Bullet) has most likely a thermal origin.

Ajello, M.; Reimer, O. [SLAC National Laboratory and Kavli Institute for Particle Astrophysics and Cosmology, 2575 Sand Hill Road, Menlo Park, CA 94025 (United States); Rebusco, P. [Kavli Institute for Astrophysics and Space Research, MIT, Cambridge, MA 02139 (United States); Cappelluti, N.; Boehringer, H. [Max Planck Institut fuer Extraterrestrische Physik, P.O. Box 1603, 85740, Garching (Germany); La Parola, V.; Cusumano, G., E-mail: majello@slac.stanford.ed [INAF, Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo, via U. La Malfa 153, 90146 Palermo (Italy)

2010-12-20

252

Parkes H I observations of galaxies behind the southern Milky Way. II. The Crux and Great Attractor regions (l ? 289to 338)  

NASA Astrophysics Data System (ADS)

As part of our programme to map the large-scale distribution of galaxies behind the southern Milky Way, we observed 314 optically-selected, partially-obscured galaxies in the Zone of Avoidance (ZOA) in the Crux and Great Attractor (GA) regions. An additional 29 galaxies were observed in the Vela ZOA survey region (because of the small numbers they are not discussed any further). The observations were conducted with the Parkes 64 m (210 ft) radio telescope, in a single-pixel pointed mode, reaching an rms noise level of typically 2-6 mJy over the velocity search range of 400 < v < 10 500 km s-1. A total of 162 galaxies were detected (plus 14 galaxies in the Vela region). The detection rate is slightly higher than for the Hydra/Antlia region (52% versus 45%) observed in the same way. This can be explained by the prominence of the GA overdensity in the survey regions, which leads to a relatively higher fraction of nearby galaxies. It is also evident from the quite narrow velocity distribution (largely confined to 3000-6000 km s-1) and deviates significantly from the expectation of a uniform galaxy distribution for the given sensitivity and velocity range. No systematic differences were found between detections and non-detections, in terms of latitude, foreground extinction, or environment, except for the very central part of the rich Norma cluster, where hardly any galaxies were detected. A detailed investigation of the H i content of the galaxies reveals strong H i deficiency at the core of the Norma cluster (within about a 0.4 Abell radius), similar to what has been found in the Coma cluster. The redshifts obtained by this observing technique result in a substantial reduction of the so-called redshift ZOA. This is obvious when analysing the large-scale structure of the new H i data in combination with data from other (optical) ZOA redshift surveys. The lower latitude detections provide further evidence of the extension of the Norma Wall, across the ZOA, in particular its bending towards the Cen-Crux clusters above the Galactic plane at slightly higher redshift, rather than a straight continuation towards the Centaurus clusters. Figure [see full textsee full textsee full textsee full textsee full text] is only available in electronic form at http://www.aanda.org Table [see full textsee full textsee full textsee full textsee full text] is also 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/505/1049

Schrder, A. C.; Kraan-Korteweg, R. C.; Henning, P. A.

2009-10-01

253

On the nature of the sources of hard pulse X-ray radiation  

NASA Technical Reports Server (NTRS)

Besides the identified sources of cosmic pulse X-ray radiation with globular clusters NGC 6624, NGC 1851 and MXB 1730-335 several new identifications were made. The source in Norma was probably identified with globular cluster NGC 5927, the source in Aquila with globular cluster NGC 6838 (M71), and the source in Puppis with globular cluster NGC 2298. Gamma pulses discovered by the Vela satellites and X-ray pulses thoroughly measured by the SAS-3, Ariel-5, and ANS satellites are thought to be the same phenomenon. The sources of such a radiation must be some kind of peculiarity at the central part of globular clusters; it is most probably a massive black hole. The sources of hard pulse radiation which cannot be identified with globular clusters are considered to be a new kind of galactic object, invisible globular clusters, which are naked nuclei of globular clusters.

Shklovskiy, I. S.

1978-01-01

254

The Role of Weight Shrinking in Large Margin Perceptron Learning  

E-print Network

We introduce into the classical perceptron algorithm with margin a mechanism that shrinks the current weight vector as a first step of the update. If the shrinking factor is constant the resulting algorithm may be regarded as a margin-error-driven version of NORMA with constant learning rate. In this case we show that the allowed strength of shrinking depends on the value of the maximum margin. We also consider variable shrinking factors for which there is no such dependence. In both cases we obtain new generalizations of the perceptron with margin able to provably attain in a finite number of steps any desirable approximation of the maximal margin hyperplane. The new approximate maximum margin classifiers appear experimentally to be very competitive in 2-norm soft margin tasks involving linear kernels.

Panagiotakopoulos, Constantinos

2012-01-01

255

Measurement of Young's modulus of cementitious materials using an electro-optic holographic technique  

NASA Astrophysics Data System (ADS)

The electro-optic holographic technique has already been used to determine Young's dynamic modulus in homogeneous materials based on the resonance frequency of the analysed samples. This paper shows a modification of the determination method of this frequency that speeds up this process thus obtaining Young's modulus. Based on the visualisation of real time fringes drawn by exciting the rods at the 1000-10,000 Hz range, the proposed method allows us to determine their resonance frequencies. This procedure has been used in the analysis of non-homogeneous materials such as mortar and concrete. The results obtained by this method show good correlation with those determined by the conventional compression method established by Una Norma Espaola (UNE) regulations, but with a smaller variability as far as measurements are concerned. The variation coefficient is less than 1% with the optical method as opposed to 3% with the compression technique.

Gonzlez-Pea, Rolando; Mart-Lpez, Luis; Cibrin-Ortiz de Anda, Rosa M.; Molina-Jimnez, Teresa; Piqueres-Ayela, Carlos

2001-12-01

256

Experiencias y repercusin de una formacin en tica de investigacin  

PubMed Central

El presente artculo tiene como propsito describir los logros y repercusiones de la capacitacin en tica de la investigacin que brinda el Centro Interdisciplinario de Estudios en Biotica de la Universidad de Chile, sirviendo de estmulo, motivacin y orientacin a profesionales que requieren conocer y aplicar las normas y el raciocinio conducente a la deliberacin de los problemas en esta disciplina. Asimismo, describe cmo este conocimiento genera un efecto multiplicador en aspectos tales como la participacin en un comit de tica de la investigacin (CEI), organizacin de cursos y creacin y desarrollo de lneas de investigacin, que repercuten en publicaciones realizadas con estudiantes de posgrado. Relata adems los contenidos y estrategias didcticas que pueden ser empleados en cursos de tica y biotica para estudiantes de estomatologa y concluye mencionando la aplicacin prctica de esta capacitacin en los mbitos docente, institucional y de investigacin. PMID:24482556

Rupaya, Carmen Rosa Garca

2012-01-01

257

[Incidence of oligophrenia with fragile X chromosome (FraXq27)].  

PubMed

The study of 50 retarded males imbezilitat and idiots, and 100 males with oligophrenia-debilitat in 16-18 years. Severe macroorchism (1.8-4.5 times more, then anthropometric norma for this years) was found at 5 males in first group (10%), and in 8 males in second group (8%). The karyotype was study in 4 males with macroorchism. In 9-15% cells FraX (q27) was found. These data were extrapolated to 600 retarded children preschool and school age. The frequency of oligophrenia with FraX (q27) among all retarded males-8.5 +/- 1.5; retarded heterozygous females among all retarded girls-5.0 +/- 1.3; incidence of oligophrenia with FraX (q27) among all males in population-1:1000; all heterozigous for this gene among all females in population-7:750; retarded heterozygous females in all girls-1:2250 were established. PMID:3817470

Bliumina, M G

1987-01-01

258

PeV neutrinos from interactions of cosmic rays with the interstellar medium in the Galaxy  

NASA Astrophysics Data System (ADS)

We present a self-consistent interpretation of the very high-energy neutrino signal from the direction of the inner Galaxy, which is a part of the astronomical neutrino signal reported by IceCube. We demonstrate that an estimate of the neutrino flux in the E >100 TeV energy range lies at the high-energy power-law extrapolation of the spectrum of diffuse ?-ray emission from the galactic ridge, as observed by the Fermi telescope. This suggests that IceCube neutrino and Fermi/LAT ?-ray fluxes are both produced in interactions of cosmic rays with the interstellar medium in the Norma arm and/or in the galactic bar. Cosmic rays responsible for the (? ray) and neutrino flux are characterized by a hard spectrum with the slope harder than -2.4 and cutoff energy higher than 10 PeV.

Neronov, A.; Semikoz, D.; Tchernin, C.

2014-05-01

259

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

PubMed Central

Resumen Objetivo Evaluar la relacin existente entre conocimientos y autoeficacia asociados al VIH/SIDA en mujeres chilenas en desventaja social. Metodologa Estudio correlacional, que utiliza la medicin basal del estudio Testeando una intervencin en VIH y SIDA en mujeres chilenas, realizada entre 2006 y 2008, que tiene una muestra de 496 mujeres entre 18 y 49 aos residentes en dos comunas de Santiago de Chile. Las participantes respondieron un cuestionario estructurado aplicado por entrevistadoras entrenadas. Este cuestionario incluy preguntas sobre datos sociodemogrficos, escala de conocimientos de conductas de riesgo y autoeficacia, entre otros. Resultados Edad promedio de 32.39.1 aos, 72.2% vive con su pareja y 42.7% poseen educacin media completa. La puntuacin media de los conocimientos de la infeccin por el VIH fue de 8.92.5, mientras que para las tres escalas empleadas para medir autoeficacia fueron: Normas de los pares =9.83.6, Intencin de reducir conductas de riesgo =12.23.6 y Self Efficacy Form=20.24.7. Los conocimientos tuvieron una correlacin positiva dbil con la intencin 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). Conclusin Existe una dbil correlacin positiva entre el nivel de conocimientos sobre el VIH/SIDA y la autoeficacia en mujeres chilenas en desventaja social. PMID:25284914

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

2014-01-01

260

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

261

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

262

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

263

Multistage late Cenozoic evolution of the Amargosa River drainage, southwestern Nevada and eastern California Society of America. All rights reserved  

USGS Publications Warehouse

Stratigraphic and geomorphic analyses reveal that the regional drainage basin of the modern Amargosa River formed via multistage linkage of formerly isolated basins in a diachronous series of integration events between late Miocene and latest Pleistocene-Holocene time. The 275-km-long Amargosa River system drains generally southward across a large (15,540 km 2) watershed in southwestern Nevada and eastern California to its terminus in central Death Valley. This drainage basin is divided into four major subbasins along the main channel and several minor subbasins on tributaries; these subbasins contain features, including central valley lowlands surrounded by highlands that form external divides or internal paleodivides, which suggest relict individual physiographic-hydrologic basins. From north to south, the main subbasins along the main channel are: (1) an upper headwaters subbasin, which is deeply incised into mostly Tertiary sediments and volcanic rocks; (2) an unincised low-gradient section within the Amargosa Desert; (3) a mostly incised section centered on Tecopa Valley and tributary drainages; and (4) a west- to northwest-oriented mostly aggrading lower section along the axis of southern Death Valley. Adjoining subbasins are hydro-logically linked by interconnecting narrows or canyon reaches that are variably incised into formerly continuous paleodivides. The most important linkages along the main channel include: (1) the Beatty narrows, which developed across a Tertiary bedrock paleodivide between the upper and Amargosa Desert subbasins during a latest Miocene-early Pliocene to middle Pleistocene interval (ca. 4-0.5 Ma); (2) the Eagle Mountain narrows, which cut into a mostly alluvial paleodivide between the Amar-gosa Desert and Tecopa subbasins in middle to late Pleistocene (ca. 150-100 ka) time; and (3) the Amargosa Canyon, which formed in late middle Pleistocene (ca. 200140 ka) time through a breached, actively uplifting paleodivide between the Tecopa and southern Death Valley subbasins. Collectively, the interconnecting reaches represent discrete integration events that incrementally produced the modern drainage basin starting near Beatty sometime after 4 Ma and ending in the Salt Creek tributary in the latest Pleistocene to Holocene (post-30 ka). Potential mechanisms for drainage integration across paleodivides include basin overtopping from sedimentary infilling above paleodivide elevations, paleolake spillover, groundwater sapping, and (or) headward erosion of dissecting channels in lower-altitude subbasins. These processes are complexly influenced by fluvial responses to factors such as climatic change, local base-level differences across divides, and (or) tectonic activity (the latter only recognized in Amargosa Canyon). ?? 2008 The Geological Society of America.

Menges, C.M.

2008-01-01

264

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

265

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 (Cerd et al., 2009a). However ecological practices and some organic amendments can promote the activities of soil microbial communities, and increase its biodiversity (Garca-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 (Morugn-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, -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 (Cerd 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 (Morugn-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 (Garca-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. Cerd, 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 Cerd, A., Gimnez-Morera, A.G., Bod, M.B. 2009b. Soil and water losses from new citrus orchards

Morugn-Coronado, Alicia; Cerd, Artemi; Garca-Orenes, Fuensanta

2014-05-01

266

List of Participants  

NASA Astrophysics Data System (ADS)

Mohab Abou ZeidInstitut des Hautes tudes Scientifiques, Bures-sur-Yvette Ido AdamMax-Planck-Institut fr Gravitationsphysik (AEI), Potsdam Henrik AdorfLeibniz Universitt Hannover Mohammad Ali-AkbariIPM, Tehran Antonio Amariti Universit di Milano-Bicocca Nicola Ambrosetti Universit de Neuchtel Martin Ammon Max-Planck-Institut fr Physik, Mnchen Christopher Andreycole Polytechnique Fdrale de Lausanne (EPFL) Laura AndrianopoliPolitecnico di Torino David AndriotLPTHE, Universit UPMC Paris VI Carlo Angelantonj Universit di Torino Pantelis ApostolopoulosUniversitat de les Illes Balears, Palma Gleb ArutyunovInstitute for Theoretical Physics, Utrecht University Davide AstolfiUniversit di Perugia Spyros AvramisUniversit de Neuchtel Mirela BabalicChalmers University, Gteborg Foday BahDigicom Ioannis Bakas University of Patras Igor BandosUniversidad de Valencia Jose L F BarbonIFTE UAM/CSIC Madrid Till BargheerMax-Planck-Institut fr Gravitationsphysik (AEI), Potsdam Marco Baumgartl Eidgenssische Technische Hochschule (ETH), Zrich James BedfordImperial College London Raphael BenichouLaboratoire de Physique Thorique, cole Normale Suprieure, Paris Francesco Benini SISSA, Trieste Eric Bergshoeff Centre for Theoretical Physics, University of Groningen Alice BernamontiVrije Universiteit, Brussel Julia BernardLaboratoire de Physique Thorique, cole Normale Suprieure, Paris Adel Bilal Laboratoire de Physique Thorique, cole Normale Suprieure, Paris Marco Billo' Universit di Torino Matthias Blau Universit de Neuchtel Guillaume BossardAlbert-Einstein-Institut, Golm Leonardo Brizicole Polytechnique Fdrale de Lausanne (EPFL) Johannes BroedelLeibniz Universitt Hannover (AEI) Tom BrownQueen Mary, University of London Ilka BrunnerEidgenssische Technische Hochschule (ETH), Zrich Erling BrynjolfssonUniversity of Iceland Dmitri BykovSteklov Institute, Moscow and Trinity College, Dublin Joan CampsUniversitat de Barcelona Davide CassaniLaboratoire de Physique Thorique, cole Normale Suprieure, Paris Alejandra CastroUniversity of Michigan Claudio Caviezel Max-Planck-Institut fr Physik, Mnchen Alessio Celi Universitat de Barcelona Anna Ceresole Istituto Nazionale di Fisica Nucleare, Universit di Torino Athanasios ChatzistavrakidisNational Technical University of Athens Wissam ChemissanyCentre for Theoretical Physics, University of Groningen Eugen-Mihaita CioroianuUniversity of Craiova Andres CollinucciTechnische Universitt Wien Paul CookUniversit di Roma, Tor Vergata Lorenzo CornalbaUniversit 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 tudes 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, Kbenhavn 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 Universit di Milano Oleg Evnin Vrije Universiteit, Brussel Francesco Fiamberti Universit di Milano Davide Forcella SISSA, Trieste and CERN, Geneva Valentina Forini Humboldt-Universitt zu Berlin Angelos Fotopoulos Universit di Torino Denis Frank Universit de Neuchtel Marialuisa Frau Universit di Torino Matthias Gaberdiel Eidgenssische Technische Hochschule (ETH), Zrich Diego Gallego SISSA/ISAS, Trieste Maria Pilar Garcia del MoralIstituto Nazionale di Fisica Nucleare, Universit di Torino Valentina Giangreco Marotta Pulet

2008-11-01

267

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

268

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

269

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

270

List of Participants  

NASA Astrophysics Data System (ADS)

Mohab Abou ZeidVrije Universiteit, Brussel Joke AdamKatholieke Universiteit Leuven Nikolas AkerblomMax-Planck-Institut fr Physik, Mnchen Luis Fernando Alday Utrecht University Stelios Alexandris University of Patras Antonio Amariti Universit di Milano-Bicocca Nicola Ambrosetti Universit de Neuchtel Pascal Anastasopoulos Universit di Roma Tor Vergata Laura Andrianopoli Enrico Fermi Center Carlo Angelantonj Universit di Torino Lilia Anguelova Queen Mary, University of London Daniel AreanUniversidade de Santiago de Compostela Gleb ArutyunovUtrecht University Spyros Avramis NTU AthensUniversity 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 Eidgenssische Technische Hochschule, Zrich Jacopo Bechi Universit 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 Thorique, cole Normale Superieure, Paris Matthias Blau Universit de Neuchtel Johannes BroedelUniversitt Hannover Felix Brmmer Universitt Heidelberg Julio Cesar Bueno de Andrade So Paulo State UniversityUNESP Cliff Burgess McMaster University Agostino Butti Laboratoire de Physique Thorique, cole Normale Superieure, Paris Marco Caldarelli Universitat de Barcelona Pablo G Camara Centre de Physique Thorique, cole Polytechnique, Palaiseau Joan Camps Universitat de Barcelona Felipe Canoura FernandezUniversidade de Santiago de Compostela Luigi Cappiello Universit di Napoli Federico II Luca Carlevaro cole Polytechnique, Palaiseau Roberto Casero Centre de Physique Thorique, cole Polytechnique, Palaiseau Claudio Caviezel Max-Planck-Institut fr Physik, Mnchen Alessio Celi Universitat de Barcelona Anna Ceresole Istituto Nazionale di Fisica Nucleare and Universit 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 Fsica Corpuscular (CSIC-UVEG), Valencia Sophie de BuylInstitut des Hautes tudes Scientifiques, Bures-sur-Yvette Jean-Pierre Derendinger Universit de Neuchtel Stephane Detournay Universit Degli Studi di Milano Paolo Di Vecchia NORDITA, Kbenhavn 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 Universit di Milano I Diaconu Eugen University of Craiova Oleg Evnin Vrije Universiteit, Brussel Bo Feng Imperial College, London Livia Ferro Universit di Torino Pau Figueras Universitat de Barcelona Raphael Flauger University of Texas at Austin Valentina Forini Universit di Perugia Angelos Fotopoulos Universit di Torino Denis Frank Universit de Neuchtel Lisa Freyhult Albert-Einstein-Institut, Golm Carlos Fuertes Instituto de Fsica Terica, Madrid Matthias Gaberdiel Eidgenssische Technische Hochschule, Zrich Maria Pilar Garcia del Moral Universit di Torino Daniel Gerber Instituto de Fsica Terica, Madrid Valentina Giangreco Marotta Puletti Uppsala University Joaquim Gomis Universitat de Barcelona Gianluca Grignani Universit di Perugia Luca Griguolo Universit di Parma Umut Gursoy cole Polytechnique, Palaiseau and cole Normale Suprieure, Paris Michael Haack Ludwig-Maximilians-Universitt, Mnchen Troels Harmark Niels Bohr Institute, Kbenhavn Alexander Haupt Imperial College, London Michal Heller Jagiellonian University, Krakow Samuli Hemming University of Iceland Yasuaki Hikida DESY,

2007-11-01

271

Exploring Cultural Heritage Resources in a 3d Collaborative Environment  

NASA Astrophysics Data System (ADS)

Cultural heritage is a complex and diverse concept, which brings together a wide domain of information. Resources linked to a cultural heritage site may consist of physical artefacts, books, works of art, pictures, historical maps, aerial photographs, archaeological surveys and 3D models. Moreover, all these resources are listed and described by a set of a variety of metadata specifications that allow their online search and consultation on the most basic characteristics of them. Some examples include Norma ISO 19115, Dublin Core, AAT, CDWA, CCO, DACS, MARC, MoReq, MODS, MuseumDat, TGN, SPECTRUM, VRA Core and Z39.50. Gateways are in place to fit in these metadata standards into those used in a SDI (ISO 19115 or INSPIRE), but substantial work still remains to be done for the complete incorporation of cultural heritage information. Therefore, the aim of this paper is to demonstrate how the complexity of cultural heritage resources can be dealt with by a visual exploration of their metadata within a 3D collaborative environment. The 3D collaborative environments are promising tools that represent the new frontier of our capacity of learning, understanding, communicating and transmitting culture.

Respaldiza, A.; Wachowicz, M.; Vzquez Hoehne, A.

2012-06-01

272

Los plaguicidas y la contaminacion del medio ambiente Venezolano  

USGS Publications Warehouse

RESUMEN DE RECOMENDACIONES Recomendaciones para el Programa de Investigacion: 1. Establecer un sistema de muestreo biologico para detectar los niveles tendencias de los productos quimicos toxicos en un peque?o numero de si tios representativos. 2. Mantener continua vigilancia de la contaminacion ambiental, mediante la seleccion acertadamente dirigida de las zonas afectadas y de las fuentes de contaminacion. 3. Realizar estudios acerca de las poblaciones de animales silvestres, y del exito de los procesos reproductivos de las especies o grupos clayes de animales que se consideran mas gravemente afectados. 4. Preparar recomendaciones para una accion gubernamental de proteccion al hombre, a la fauna silvestre y al medio ambiente. Recomendaciones para la Accion Administrativa: 1. Establecer limites a la tolerancia de los residuos de plaguicidas en los alimentos. Constituye una medida clave para disminuir la contaminacion ambiental. 2. Establecer normas de calidad del agua para las corrientes, represas, la gos y otros cuerpos. Es la segunda medida clave para reducir la contaminacion del ambiente 3. Exigir un tratamiento adecuado de los efluentes industriales, especialmente antes de que se construyan las nuevas plantas. 4. Exigir a los agricultores que en el uso de plaguicidas sigan los consejos tecnicos autorizados y negar a los vendedores el derecho a recomendar productos por su cuenta. 5. Tomar medidas para recoger y eliminar los recipientes y sobrantes de los plaguicidas.

Stickel, L.F.; Stickel, W.H.

1972-01-01

273

The Three-mm Ultimate Mopra Milky Way Survey. II. Cloud and Star Formation Near the Filamentary Ministarburst RCW 106  

E-print Network

We report here a study of gas, dust and star formation rates (SFRs) in the molecular cloud complexes (MCCs) surrounding the giant H$\\,{\\rm \\scriptsize{II}}$ region RCW$\\,$106 using $^{12}$CO and $^{13}$CO$\\,$(1-0) data from the Three-mm Ultimate Mopra Milky way Survey (ThrUMMS) and archival data. We separate the emission in the Galactic Plane around $l=330^{\\circ}$-$335^{\\circ}$ and $b=-1^{\\circ}$-$1^{\\circ}$ into two main MCCs: the RCW$\\,$106 (V$_{\\rm LSR} = -48\\,$km$\\,$s$^{-1}$) complex and the MCC331-90(V$_{\\rm LSR} = -90\\,$km$\\,$s$^{-1}$) complex. While RCW$\\,$106 (M$\\sim 5.9\\times 10^{6}\\,$M$_{\\odot}$) is located in the Scutum-Centaurus arm at a distance of 3.6$\\,$kpc, MCC331-90 (M$\\sim 2.8\\times 10^{6}\\,$M$_{\\odot}$) is in the Norma arm at a distance of 5$\\,$kpc. Their molecular gas mass surface densities are $\\sim220$ and $\\sim130\\,$M$_{\\odot}$ pc$^{-2}$, respectively. For RCW$\\,$106 complex, using the 21$\\,$cm continuum fluxes and dense clump counting, we obtain an immediate past ($\\sim$-0.2$\\,$Myr) a...

Nguyen, Hans; Martin, Peter G; Barnes, Peter J; Muller, Erik; Lowe, Vicki; Lo, Nadia; Cunningham, Maria; Motte, Frdrique; O'Dougherty, Stefan N; Hernandez, Audra K; Fuller, Gary A

2015-01-01

274

A First Look at the X-ray Population of the Young Massive Cluster VVV CL077  

E-print Network

Multi-wavelength analysis of the young massive cluster VVV CL077 is presented for the first time. Our Chandra survey of this region enabled the detection of three X-ray emitting stellar members of the cluster, as well as a possible diffuse X-ray component that extends a few arcseconds from the cluster core with an intrinsic flux of (9+/-3)x10^-14 erg cm^-2 s^-1 in the 0.5-10 keV band. Infrared spectra we obtained for two of these X-ray point sources show absorption lines typical of the atmospheres of massive O stars. The X-ray spectrum from the visible extent of VVV CL077 i.e., a 15"-radius around the cluster, can be modeled with an absorbed power law with nH = (6+/-4)x10^22 cm^-2 and gamma = 2+/-1. In addition, the X-ray core of VVV CL077 coincides with diffuse emission seen in the infrared band and with a local maximum in the radio continuum map. A possible association with a neighboring H II region would place VVV CL077 at a distance of around 11 kpc; on the far side of the Norma Arm. At this distance, the...

Bodaghee, Arash; Fornasini, Francesca; Rahoui, Farid; Bauer, Franz E

2015-01-01

275

A First Look at the X-Ray Population of the Young Massive Cluster VVV CL077  

NASA Astrophysics Data System (ADS)

Multi-wavelength analysis of the young massive cluster VVV CL077 is presented for the first time. Our Chandra survey of this region enabled the detection of three X-ray emitting stellar members of the cluster, as well as a possible diffuse X-ray component that extends a few arcseconds from the cluster core with an intrinsic flux of (9 3) 10-14 erg cm-2 s-1 in the 0.5-10 keV band. Infrared spectra we obtained for two of these X-ray point sources show absorption lines typical of the atmospheres of massive O stars. The X-ray spectrum from the visible extent of VVV CL077 i.e., a 15'' radius around the cluster, can be modeled with an absorbed power law with N H = (6-3+4) 1022 cm-2 and ? = 2 1. In addition, the X-ray core of VVV CL077 coincides with diffuse emission seen in the infrared band and with a local maximum in the radio continuum map. A possible association with a neighboring H II region would place VVV CL077 at a distance of around 11 kpc, on the far side of the Norma Arm. At this distance, the cluster is 0.8 pc wide with a mass density of (1-4) 103 M ? pc-3.

Bodaghee, Arash; Tomsick, John A.; Fornasini, Francesca; Rahoui, Farid; Bauer, Franz E.

2015-03-01

276

The Large-Scale Magnetic Field Structure of Our Galaxy: Efficiently Deduced from Pulsar Rotation Measures  

E-print Network

In this review, I will first introduce possible methods to probe the large-scale magnetic fields in our Galaxy and discuss their limitations. The magnetic fields in the Galactic halo, mainly revealed by the sky distribution of rotation measures of extragalactic radio sources, probably have a global structure of a twisted dipole field. The large-scale field structure in the Galactic disk has been most efficiently deduced from pulsar rotation measures (RMs). There has been a lot of progress since the 1980s when the magnetic field in the local area of our Galaxy was first traced by a very small sample of local pulsars. Now we have pulsars distributed in about one third of the whole Galactic disk of the interstellar medium, which shows that the large-scale magnetic fields go along the spiral arms and that the field directions reverse from arm to arm. The RMs of newly discovered pulsars in the very inner Galaxy have been used to show the coherent magnetic field in the Norma arm. The magnetic fields in the Galactic disk most probably have a bisymmetric spiral structure.

J. L. Han

2004-02-08

277

Pediatric case of crescentic post-streptococcal glomerulonephritis with myeloperoxidase anti-neutrophil cytoplasmic antibody.  

PubMed

Post-streptococcal glomerulonephritis (PSGN) generally has a good renal prognosis, and immunosuppressive therapies are not needed. However, a few patients present with severe acute kidney injury and extensive crescent formations. The etiology of such patients is not well known, and involvement of anti-neutrophil cytoplasmic antibodies is rarely reported. A 9-year-old girl with rapidly progressive nephritic syndrome was diagnosed with PSGN. A biopsy showed diffuse crescentic glomerulonephritis with immunoglobulin G and C3 deposits; moreover, humps were observed on electron microscopy. After she was administered methylprednisolone pulse therapy and intravenous cyclophosphamide, followed by prednisolone and azathioprine therapy, her urinary abnormalities improved and renal function normalized. However, the myeloperoxidase anti-neutrophil cytoplasmic antibody (MPO-ANCA) titers gradually increased. We speculated that PSGN may be augmented by increased MPO-ANCA levels. Therefore, the patient is currently being treated with losartan, enalapril, azathioprine, and prednisolone. Although the MPO-ANCA titer remains high, urinary findings show mild proteinuria and her renal function has been norma for 18 months since onset. A progressive clinical course and severe histological findings may indicate the involvement of ANCA in deterioration of condition in patients with PSGN. Furthermore, in such cases immunosuppressive therapies should be considered even in pediatric PSGN. PMID:25161112

Kanai, Hiroaki; Sawanobori, Emi; Koizumi, Keiichi; Ohashi, Ryuji; Higashida, Kosuke

2015-04-01

278

Classification and prioritization of biomedical literature for the comparative toxicogenomics database.  

PubMed

We present a new approach to perform biomedical documents classification and prioritization for the Comparative Toxicogenomics Database (CTD). This approach is motivated by needs such as literature curation, in particular applied to the human health environment domain. The unique integration of chemical, genes/proteins and disease data in the biomedical literature may advance the identification of exposure and disease biomarkers, mechanisms of chemical actions, and the complex aetiologies of chronic diseases. Our approach aims to assist biomedical researchers when searching for relevant articles for CTD. The task is functionally defined as a binary classification task, where selected articles must also be ranked by order of relevance. We design a SVM classifier, which combines three main feature sets: an information retrieval system (EAGLi), a biomedical named-entity recognizer (MeSH term extraction), a gene normalization (GN) service (NormaGene) and an ad-hoc keyword recognizer for diseases and chemicals. The evaluation of the gene identification module was done on BioCreativeIII test data. Disease normalization is achieved with 95% precision and 93% of recall. The evaluation of the classification was done on the corpus provided by BioCreative organizers in 2012. The approach showed promising performance on the test data. PMID:22874182

Vishnyakova, Dina; Pasche, Emilie; Gobeill, Julien; Gaudinat, Arnaud; Lovis, Christian; Ruch, Patrick

2012-01-01

279

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

280

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

E-print Network

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 $\\pm$ 0.4 kpc and 5.7 $\\pm$ 0.4 kpc, respectively, whereas Haffner 18 is located at the distance of 11.2 $\\pm$ 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 o...

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

2014-01-01

281

Optimal Spectral Regions For Laser Excited Fluorescence Diagnostics For Point Of Care Application  

NASA Astrophysics Data System (ADS)

The tissue fluorescence gives the response of light emitting molecule signature, and characterizes the cell composition and peculiarities of metabolism. Both are useful for the biomedical diagnostics, as reported in previous our and others works. The present work demonstrates the results of application of laser excited autofluorescence for diagnostics of pathology in genital tissues, and the feasibility for the bedside at "point of careoff lab" application. A portable device using the USB spectrophotometer, micro laser (355 nm Nd:YAG, 0,5 ns pulse, repetition rate 10 kHz, output power 15 mW), three channel optical fiber and computer with diagnostic program was designed and ready for clinical trial to be used for cytology and biopsy specimen on site diagnostics, and for the endoscopy/puncture procedures. The biopsy and cytology samples, as well as intervertebral disc specimen were evaluated by pathology experts and the fluorescence spectra were investigated in the fresh and preserved specimens. The spectra were recorded in the spectral range 350-900 nm. At the initial stage the Gaussian components of spectra were found and the Mann-Whitney test was used for the groups' differentiation and the spectral regions for optimal diagnostics purpose were found. Then a formal dividing of spectra in the components or the definite width bands, where the main difference of the different group spectra was observed, was used to compare these groups. The ROC analysis based diagnostic algorithms were created for medical prognosis. The positive prognostic values and negative prediction values were determined for cervical Liquid PAP smear supernatant sediment diagnosis of being Cervicitis and Norma versus CIN2+. In a case of intervertebral disc the analysis allows to get the additional information about the disc degeneration status. All these results demonstrated an efficiency of the proposed procedure and the designed device could be tested at the point-of-care site or for intervertebral disc operations.

Vaitkuviene, A.; G?gna, V.; Varanius, D.; Vaitkus, J.

2011-09-01

282

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 capacity 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 normative 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 'erring 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

283

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

284

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

285

gamma-rays from annihilating dark matter in galaxy clusters: stacking vs single source analysis  

E-print Network

Clusters of galaxies are potentially important targets for indirect searches for dark matter annihilation. Here we reassess the detection prospects for annihilation in massive halos, based on a statistical investigation of 1743 clusters in the new Meta-Catalog of X-ray Clusters. We derive a new limit for the extra-galactic dark matter annihilation background of at least 20% of that originating from the Galaxy for an integration angle of 0.1 deg. The number of clusters scales as a power law with their brightness, suggesting that stacking may provide a significant improvement over a single target analysis. The mean angle containing 80% of the dark-matter signal for the sample is ~0.15 deg, indicating that instruments with this angular resolution or better would be optimal for a cluster annihilation search based on stacking. A detailed study based on the Fermi-LAT performance and position-dependent background, suggests that stacking may result in a factor ~2 improvement in sensitivity, depending on the source selection criteria. Based on the expected performance of CTA, we find no improvement with stacking, due to the requirement for pointed observations. We note that several potentially important targets: Opiuchius, A2199, A3627 (Norma) and CIZAJ1324.7-5736 may be disfavoured due to a poor contrast with respect to the Galactic dark-matter signal. The use of the homogenised MCXC meta-catalogue provides a robust ranking of the targets, although the absolute value of their signal depends on the exact dark matter substructure content. For conservative assumptions, we find that galaxy clusters (with or without stacking) can probe down to 1e-25-1e-24 cm3/s for dark matter masses in the range 10 GeV-100 GeV. For more favourable substructure configurations, ~1e-26 cm3/s may be reached.

E. Nezri; R. White; C. Combet; J. A. Hinton; D. Maurin; E. Pointecouteau

2012-06-11

286

MUSE sneaks a peek at extreme ram-pressure stripping events - I. A kinematic study of the archetypal galaxy ESO137-001  

NASA Astrophysics Data System (ADS)

We present Multi Unit Spectroscopic Explorer (MUSE) observations of ESO137-001, a spiral galaxy infalling towards the centre of the massive Norma cluster at z 0.0162. During the high-velocity encounter of ESO137-001 with the intracluster medium, a dramatic ram-pressure stripping event gives rise to an extended gaseous tail, traced by our MUSE observations to >30 kpc from the galaxy centre. By studying the H? surface brightness and kinematics in tandem with the stellar velocity field, we conclude that ram pressure has completely removed the interstellar medium from the outer disc, while the primary tail is still fed by gas from the inner regions. Gravitational interactions do not appear to be a primary mechanism for gas removal. The stripped gas retains the imprint of the disc rotational velocity to 20 kpc downstream, without a significant gradient along the tail, which suggests that ESO137-001 is fast moving along a radial orbit in the plane of the sky. Conversely, beyond 20 kpc, a greater degree of turbulence is seen, with velocity dispersion up to ?100 km s-1. For a model-dependent infall velocity of vinf 3000 km s-1, we conclude that the transition from laminar to turbulent flow in the tail occurs on time-scales ?6.5 Myr. Our work demonstrates the terrific potential of MUSE for detailed studies of how ram-pressure stripping operates on small scales, providing a deep understanding of how galaxies interact with the dense plasma of the cluster environment.

Fumagalli, Michele; Fossati, Matteo; Hau, George K. T.; Gavazzi, Giuseppe; Bower, Richard; Sun, Ming; Boselli, Alessandro

2014-12-01

287

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

288

Sun-Earth Day - Teaching Heliophysics Through Education Technology  

NASA Technical Reports Server (NTRS)

Sun-Earth Day (SED) is an Education and Outreach program supported by the U.S, National Aeronautics and Space Administration (NASA). The intent of the program is to teach students and the general public about Heliophysics (the science of the study of the Sun, how it varies, and how solar dynamics affect the rest of the solar system, especially the Earth). The program was begun ten years ago. Each year since that time a particular day has been designated as "Sun-Earth Day ,,. Usually the day of the spring equinox (March 20 or 21) is Sun-Earth Day, but other days have been used as well. Each year a theme is chosen relating to Heliophysics and events reflecting that theme are planned not only for Sun-Earth Day, but for the entire year. From the very beginning educational technology was emphasized in the events in order to effectively reach wide audiences with the SED message. The main approach has been to have a "webcast" related to each year's theme, often from a location that supports the theme as well. For example, a webcast took place from the Mayan pyramids at Chichen Itza, Mexico to highlight the theme of "Ancient Observatories, Timeless Knowledge". Webcasts were not the only technology employed, however. Many of the themes centered on the dynamic nature of the Sun and the effects that solar storms can have on interplanetary space and in our day-to-day life on Earth. Activities for tracking when solar storms happen and how they affect the Earth were developed and brought together in an educational package called Space Weather Action Centers. This project is explained in more detail in another presentation in this session being given by Norma Teresinha Oliveira Reis. Recent Sun-Earth Days have utilized "social networking" technologies to reach widespread groups on the internet. Podcasts, Vodcasts, Facebook, Twitter, and Second Life are the types of network technologies being employed now. The NASA Distance learning Network is another method for bringing Sun-Earth Day events and training to widespread educators and classrooms in order to magnify the reach of Sun-Earth Day. Examples of the technologies will be shown along with an assessment of their effectiveness.

Thieman, J.; Cline, T.; Lewis, E.

2010-01-01

289

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 CpGs 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

290

? -rays from annihilating dark matter in galaxy clusters: stacking versus single source analysis  

NASA Astrophysics Data System (ADS)

Clusters of galaxies are potentially important targets for indirect searches for dark matter (DM) annihilation. Here we reassess the detection prospects for annihilation in massive haloes, based on a statistical investigation of 1743 clusters in the new Meta-Catalogue of X-ray Clusters (MCXC). We derive a new limit for the extragalactic DM annihilation background of at least 20 per cent of that originating from the Galaxy for an integration angle of 0.1. The number of clusters scales as a power law with their brightness (boosted by DM substructures), suggesting that stacking may provide a significant improvement over a single target analysis. The mean angle containing 80 per cent of the DM signal for the sample (assuming a Navarro-Frenk-White DM profile) is 0.15 (excluding the contribution from the point spread function of any instrument), indicating that instruments with this angular resolution or better would be optimal for a cluster annihilation search based on stacking. A detailed study based on the Fermi-LAT performance and position-dependent background suggests that stacking may result in a factor of 2 improvement in sensitivity, depending on the source selection criteria. Based on the expected performance of Cherenkov Telescope Array, we find no improvement with stacking, due to the requirement for pointed observations. We note that several potentially important targets - Opiuchius, A2199, A3627 (Norma) and CIZA J1324.7-5736 - may be disfavoured due to a poor contrast with respect to the Galactic DM signal. The use of the homogenized MCXC meta-catalogue provides a robust ranking of the targets, although the absolute value of their signal depends on the exact DM substructure content. For conservative assumptions, we find that galaxy clusters (with or without stacking) can probe down to 10-25-10-24 cm3 s-1 for DM masses in the range 10-100 GeV. For more favourable substructure configurations, 10-26 cm3 s-1 may be reached.

Nezri, E.; White, R.; Combet, C.; Hinton, J. A.; Maurin, D.; Pointecouteau, E.

2012-09-01

291

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.; Phlhofer, G.; Yakovlev, D. G.; Santangelo, A.; Werner, K.

2015-01-01

292

FOREWORD: V S Letokhov  

NASA Astrophysics Data System (ADS)

Comments on Atomic, Molecular and Optical Physics (CAMOP) endeavors periodically to devote an issue to the life and accomplishments of physicists who have made significant contributions to the fields represented in this journal. Vladilen Letokhov is certainly one of them. For a number of years he was also a CAMOP Correspondent. We are grateful to Professor Victor Balykin for having organized this CAMOP special section. It is particularly significant to one of us (HHS) to remember a person who has made seminal advances in so many areas which to this day are at the forefront of studies by a number of physicists. But over the years this acquaintance developed into friendship and gave the wife of one of us, Norma, and HHS the opportunity to host Tina and Vladik in their home, and get to know both a bit better. There was also the seminal International School on Laser Applications in Physics in Vilnius organized by Letokhov, and then a visit to Troitsk and his group at the Institute of Spectroscopy (and even the organization of a couple of piano recitals by one of our daughters, Marija, who accompanied her parents in the then USSR). Our interests crossed in a couple of fields: laser interactions with atoms and sensitive spectroscopy of radioactive atoms. Letokhov was a participant in the early organization of laser spectroscopy at CERN and was instrumental in providing copper vapour lasers to the isotope separator facility, ISOLDE. To this day laser ion sources are under the aegis of Valentin Fedoseyev who came to CERN from Troitsk. The interaction of lasers with atoms, in particular the process of slowing atoms, is discussed by Balykin. It was Christmas time when a card arrived from Oleg Tumanov of the Institute of Spectroscopy: it included a graph of temperature achieved by laser cooling as a function of calendar date. The results of Letokhov's group were the earliest (see figure 1), even though lower temperatures achieved subsequently by others extended our knowledge. To many, the lack of formal recognition was a bit puzzling, and this will have to await the usual number of decades before relevant discussions become publicSee, for example, Friedman R M 2001 The Politics of Excellence (New York: Henry Holt).. But, as can be attested by the most prolific, diverse and creative contributions presented in the bibliography, Letokhov's work will leave a long-lasting legacy. Progress in laser cooling Figure 1. Progress in laser cooling.

Stroke, H. Henry; Linnartz, Harold

2012-04-01

293

Correction to finley et Al. (2014).  

PubMed

Reports an error in "Utilization of Evidence-Based Psychotherapies in Veterans Affairs Posttraumatic Stress Disorder Outpatient Clinics" by Erin P. Finley, Hector A. Garcia, Norma S. Ketchum, Donald D. McGeary, Cindy A. McGeary, Shannon Wiltsey Stirman and Alan L. Peterson (Psychological Services, Advanced Online Publication, Nov 24, 2014, np). In this article, the second sentence of the seventh paragraph of the Discussion section "Not feeling part of a coherent team was negatively associated with CPT use." should read "Feeling part of a coherent team was negatively associated with CPT use." (The following abstract of the original article appeared in record 2014-49434-001.) In response to the growing numbers of veterans with posttraumatic stress disorder (PTSD), the Department of Veterans Affairs (VA) has sought to make evidence-based psychotherapies for PTSD available at every VA facility. We conducted a national survey of providers within VA PTSD clinical teams (PCTs) to describe utilization of prolonged exposure (PE) and cognitive processing therapy (CPT) and to identify individual and organizational factors associated with treatment uptake and adherence. Participants (N = 128) completed an electronic survey assessing reported utilization of PE and CPT treatments, adherence to treatment manuals, and characteristics of the provider and workplace environment. Participants reported conducting a weekly mean of 4.5 hours of PE, 3.9 hours of CPT (individual format), 1.3 hours of CPT (group format), and 13.4 hours of supportive care. Perceived effectiveness of PE and CPT were significantly associated with utilization of and adherence to those treatments. Reported number of hours conducting supportive care was positively associated with feeling the clinic was not sufficiently staffed (p = .05). Adherence to the PE treatment manual was positively associated with receiving emotional support from coworkers (p < .01). Provider attitudes and organizational factors such as staffing and work relationships may have an important impact on treatment selection and the quality of PTSD care provided in VA PCTs. (PsycINFO Database Record (c) 2015 APA, all rights reserved). PMID:25688642

2015-02-01

294

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

295

Project Seacleaner: from cooperation among ISMAR-CNR researchers, high school students and the Ligurian Cluster for Marine Technologies to an application for environmental monitoring and scientific research.  

NASA Astrophysics Data System (ADS)

Recently, the Institute for Marine Science of the Italian Research Council ISMAR-CNR has undertaken a series of actions to incorporate oceanography in education: among these, the project "SeaCleaner" that has been developed together with a local Secondary School (Istituto di Istruzione Superiore Capellini-Sauro) and the Ligurian Cluster for Marine Technologies (DLTM) [1]. Seven students, engaged within the national Programme "work-related learning"[2], have worked side-by-side with ISMAR-CNR researchers, investigating on the problem of debris accumulation on beaches, and understanding the damage that this issue causes to marine environments and ecosystems. This problem has recently become a challenging research subject for an increasing number of oceanographers and, in general, for environmental researchers coming from the Mediterranean areas [3, 4, 5], other European Seas [6] and Oceans [7, 8]. Data collected during repeated surveys (seasonally) in the same beach stretch, over several years, allow calculating debris accumulation rates and flow intensities. Application of current models gives additional information on debris dispersal and origin, but we shouldn't forget that, generally, relevance of acquired data is determined by the accuracy and standardization of the procedure. In this context, students have previously searched for literature sources and summarized the most important issues, among these: few data that are often collected during small ranges of time and usually a low number of available researchers for carrying out such a time-consuming survey in the field. In a initial part of the project, several trial surveys have been performed on different beaches in La Spezia province, in order to understand how to elaborate possible strategies to speed up and standardize the procedure. Developing an application for Android system (downloadable on any compatible mobile device such as smartphones, tablets, etc.) has been considered as a good solution since it is easy to spread and distribute among non-technical end-users. This app will help final users to carry out a standard monitoring procedure, in a quick way. All data (photographs, site characteristics, kind of debris, waypoints) will be properly captured and semi-automatically registered on a separate electronic spreadsheet. SeaCleaner app can be provided to environmental associations, marine parks, volunteers and its easy approach will allow us to obtain standardized and safe data, upcoming from an increasing number of points, which will be acquired in situ and then saved on a dedicated remote database. Citizen participation in scientific programs, already experienced in the field of astronomy [9] has been effective also in other scientific fields, both from the scientific and social point of view, since it brings people closer to science and fills the gap between who produces science and technology and who benefits from it ("citizen science") [10, 11]. SeaCleaner is ready to be used during the school year 2013/2014 to test its validity and usefulness. Further internships and collaborations between ISMAR and educational institutions, will allow us by the end of April 2014 to show the first dataset processed in this experimental phase. It is worth to highlight the active involvement of young people in this project and its effectiveness as a tool for raising awareness on environmental issues and orientating young people towards scientific careers. The project has been awarded in November 2013 as the best regional work-related learning project. [1] DLTM: Distretto Ligure per le tecnologie Marine: www.dltm.it. [2] Italian Law on general rules for work-related learning: D.Lgs 15/04/2005 n. 77 sulla "Definizione delle norme generali relative all'alternanza scuola-lavoro, a norma dell'articolo 4 della legge 28 marzo 2003, n. 53". [3] UNEP/MAP/MED POL (2004). Guidelines on Management of coastal litter for the Mediterranean region (MED POL). MAP Technical Reports Series No.148. UNEP/MAP, Athens. [4 ] Henry, M. (2010). Pollution

Merlino, Silvia; Marini, Claudio; Tosi, Daniela; Caselli, Lorena; Marini, Davide; Lucchinelli, Paolo; Vatteroni, Davide; Lunardelli, Francesco; Agrusa, Astrid; Lombardi, Davide; Stroobant, Mascha

2014-05-01

296

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

297

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. Rsum Les eaux de cinq cnots, qui sont normalement utilises pour des activits de plein air, dans la rgion touristique de Cancun-Tulum (Mexique), ont t soumises analyses chimiques pour savoir si les cnots peuvent tre considrs comme des sources d'eau potable. Plusieurs paramtres dpassent les normes mexicaines en matire d'eau potable; mais comme ceux-ci ne posent pas de problme rel de sant, quatre des cinq cnots peuvent tre capts pour l'eau potable. Les contaminants habituels dans les eaux de la presqu'le du Yucatan, coliformes fcaux et concentrations leves en nitrate, sont la plupart du temps au-dessous des normes (respectivement 0 460 germes/100ml et 0,31 1,18mg/l). Bien que ces quatre cnots satisfassent aux normes, il est ncessaire de mettre en place des rgles prcises de l'utilisation de l'eau souterraine, afin d'viter la contamination par les germes fcaux et par les nitrates, ainsi que l'intrusion marine. Resumen Se analiz hidroqumica y bacteriolgicamente el agua de algunos cenotes localizados a lo largo del corredor turstico 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 parmetros excedieron los criterios establecidos en la Norma Mexicana para Agua Potable (NMAP), sin embargo, como stas 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 comnes del agua subterrnea de la pennsula de Yucatn, coliformes fecales y nitratos, se encuentran en la mayora 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 poltica de manejo adecuada del agua subterrnea para evitar la contaminacin de este recurso (fecal y por nitratos), as como la intrusin de agua salina.

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

298

Laboratory and field measurements of organic aerosols with the photoionization aerosol mass spectrometer  

NASA Astrophysics Data System (ADS)

Analytical methods developed to sample and characterize ambient organic aerosols often face the trade-off between long sampling times and the loss of detailed information regarding specific chemical species present. The soft, universal ionization scheme of the Photoionization Aerosol Mass Spectrometer (PIAMS) allows for identification of various chemical compounds by a signature ion, often the molecular ion. The goal of this thesis work is to apply PIAMS to both laboratory and field experiments to answer questions regarding the formation, composition, and behavior of organic aerosols. To achieve this goal, a variety of hardware and software upgrades were administered to PIAMS to optimize the instrument. Data collection and processing software were either refined or built from the ground up to simplify difficult or monotonous tasks. Additional components were added to PIAMS with the intent to automate the instrument, enhance the results, and make the instrument more rugged and user-friendly. These changes, combined with the application of an external particle concentration system (mini-Versatile Aerosol Concentration Enrichment System, m-VACES), allowed PIAMS to be suitable for field measurements of organic aerosols. Two such field campaigns were completed, both at the State of Delaware Air Quality Monitoring Site in Wilmington, Delaware: a one week period in June, 2006, and an 18 day period in October and November of 2007. A sampling method developed was capable of collecting sufficient ambient organic aerosol and analyzing it with a time resolution of 3.5 minutes. Because of this method, short term concentration changes of individual species can be tracked. Combined with meteorological data, the behavior of these species can be analyzed as a function of time or wind direction. Many compounds are found at enhanced levels during the evening/night-time hours; potentially due to the combined effects of temperature inversion, and fresh emissions in a cooler environment. The high-time resolution data shows that rapid concentration changes of a common individual species can be lost with traditional bulk sampling, and a time resolution of 30 minutes is suggested to accurately represent these changes. Using the mass spectra collected from the extended sampling campaign, source apportionment was performed with positive matrix factorization (PMF). The resulting model features six factors either correlated to specific sources (meat cooking, car emissions/road dust, diesel exhaust) or types of compounds (phthalates, alkanes/alkanoic acids, PAHs). The high-time resolution data allowed for the observation of specific trends in each factor's behavior as a function of time and wind direction relative to the receptor site. Elemental carbon/organic carbon (EC/OC) data is used to calculate the percentages of primary and secondary organic aerosol. Primary organic aerosol (POA) constituted the vast majority of the total carbon at 91% (an average of 2.8 +/- 1.1mug/m 3); 30% of which came from combustion, and 70% from non-combustion sources. These results can be explained by the PIAMS data: the diesel factor contributes to the combustion-related POA; the car/road dust, meat cooking, and alkane/alkanoic acid factors contribute the majority of non-combustion POA. The remaining factors represent <5% of the remaining OC. Considering the compatibility of data from the EC/OC and PIAMS, the ability of PIAMS to yield molecular species information to further define the primary and secondary organic aerosol factions is a distinct advantage in describing the behavior of the Wilmington organic aerosol. PIAMS was also applied to laboratory experiments. These experiments simulated complex environmental processes in order to focus on answering a central question. By mixing cholesterol aerosol with ozone in a smog chamber, and monitoring the concentration of cholesterol with PIAMS, the rate of reaction was determined. This rate indicates that cholesterol aerosol, which is a suggested source tracer, will remain in the ambient air for a few days under norma

Dreyfus, Matthew A.

299

PREFACE: 4th National Meeting in Chaos, Complex System and Time Series  

NASA Astrophysics Data System (ADS)

The fourth edition of the National Meeting on Chaos, Complex Systems and Time Series (NMCCSTS4), or in Spanish 4a. Reunin Nacional de Caos, Sistemas Complejos y Series de Tiempo, was held from 29 November to 2 December 2011 in the University of Veracruz (Universidad Veracruzana), Campus Xalapa, at Xalapa Veracruz, Mxico, in the beautiful House of the Lake (Casa del Lago), a late XIX century former textile factory situated in the edge of an also ancient former dam, currently a park containing three small lakes, very emblematic of Xalapa, City, the capital of the state of Veracruz, Mxico. The previous editions of this meeting, were held in Mrida (2006), Pachuca (2008) and Puebla (2009). A clear uptrend is observed in the number of participants in this academic event from all Universities of Mxico and abroad, going from about 15 participants in the first meeting to more than 90 in the last one. On this occasion, about 90 participants from three countries attended our event, where 29 papers (10 master lectures from top recognized national and international leaders in the fields of complexity, and 19 invited papers), one course for students and 42 posters were presented. A look at the scientific program of the NMCCSTS4, allows us to appreciate the wide range of topics and recent advances that were covered during our event; topics and recent results in the areas of biology, econophysics, sociophysics, genomics and bioinformatics, complex networks, thermodynamics, etc, were presented and discussed rigorously in a friendly, dynamical and informal atmosphere. Also, on this occasion, we celebrated Professor Miguel Angel Jimnez Montao, for his very distinguished academic career throughout more that 50 years and as a founding member of the Faculty of Physics and AI of University of Veracruz. Prizes were awarded for the best poster presentations. The winner was Porfirio Toledo, from Faculty of Mathematics, University of Veracruz (Game theory to characterize solutions of a discrete-time Hamilton--Jacobi equation). The present volume contains a rigorous selection of the lectures presented at the NMCCSTS4. All papers were peer reviewed and we consider the high quality and the wide range of topics covered here displays the high level that the community of complexity sciences is reaching in our country. We would like to thank all of the speakers, participants and the members of the Organizing Committee, also we would like to express our gratitude to all students and support personal involved with the logistic and technical aspects of the organization of our event. This IV edition of the National Meeting on Caos, Complex System and Time Series was sponsored by the following organizations and institutions, we warmly thank all of them: Universidad Veracruzana, IF-BUAP, UAM Azcapotzalco, INMEGEN, Conacyt (155492), all them from Mxico and the Ministero degli Affari Esteri (MAE) from Italy. A R Hernndez Montoya University of Veracruz M E Rodrguez Achach University of Veracruz E Hernndez Lemus National Institute of Genomic Medicine J R Luvano Enrquez Universidad Autnoma Metropolitana-Azcapotzalco C E Vargas Madrazo University of Veracruz Organizing Committee Jos Luis Carrillo Estrada Instituto de Fsica, Benemerita Universidad Autnoma de Puebla, carrillo@sirio.ifuap.buap.mx Jos Rubn Luvano Enrquez Universidad Autnoma Metropolitana-Azcapotzalco, jrle@correo.azc.uam.mx Enrique Hernndez Lemus National Institute of Genomic Medicine, ehernandez@inmegen.gob.mx Alejandro Ral Hernndez Montoya University of Veracruz, alhernandez@uv.mx Norma Bagatella Flores University of Veracruz, nbagatella@uv.mx Adrian Arturo Huerta Hernndez University of Veracruz, adhuerta@uv.mx Manuel Enrique Rodrguez Achach University of Veracruz, manurodriguez@uv.mx Carlos Ernesto Vargas Madrazo University of Veracruz, cavargas@uv.mx Sol Haret Baez Barrios University of Veracruz, arbaez@uv.mx Hctor Francisco Coronel Brizio University of Veracruz, hcoronel@uv.mx Sergio Adrian Lerma Hernndez University of Veracruz, slerma@uv.mx

Ral Hernndez Montoya, Alejandro; Hernndez Lemus, Enrique; Rubn Luvano Enrquez, Jos; Rodrguez Achach, Manuel Enrique; Vargas Madrazo, Carlos Ernesto

2013-12-01

300

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

301

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, Mxico. 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 Autnoma de Mxico, Universidad Michoacana de San Nicols de Hidalgo, Centro de Investigaciones y Estudios Avanzados del IPN (CINVESTAV) and Consejo Nacional de Ciencia y Tecnologa (CONACyT). We are very grateful to Dr Ral Arias Lovillo, Dr Vctor Manuel Alcarz Romero, Dr Asdrbal Flres Lpez and Mtro Walter Saiz Gonzlez, 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 Rubn Bernardo Morante Lpez, Director of the Museum of Anthropology of Xalapa, and Dr Hctor 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 Valds (CINVESTAV-U. Zacatenco), Lorenzo Dz Cruz (FCFM-BUAP), Juan Jos Godina Nava (CINVESTAV-U. Zacatenco), Gerardo Herrera Corral (CINVESTAV-U. Zacatenco), German Mandujano Vallejo (FFIA-U. Veracruzana), Miguel ngel Prez Angn (CINVESTAV-U. Zacatenco), Efran Rojas Marcial (FFIA-U. Veracruzana) and Carlos Vargas Madrazo (FFIA-U Veracruzana). Many thanks also to our Conference Secretaries Patricia Carranza and Soledad Lpez for the efficiency with which they carried out their job and their dedication. Special thanks go to Mara Guadalupe Colorado Hernndez 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) Rul Hernndez (FFIA-UV) Myriam Mondragn (IF-UNAM) Luis Villaseor (IFM-UMSNH)

2005-01-01

302

Waterproof Anti-Explosive Powders for Coal Mines  

NASA Astrophysics Data System (ADS)

Limestone powder characterized by hydrophobic properties is used as an anti-explosive agent in coal mining industry. Unfortunately, the standard method of producing such powder by milling limestone with stearic acid is practically unprofitable in many modernized quarries and plants, and sometimes literally impossible due to the introduction of technological changes and implementation of modern mills. Then new methods of hydrophobization of limestone surfaces ought be searched. In the work two methods hydrophobization: from the stearic acid vapour phase and from silicone solutions are proposed. Lime dust from the Czatkowice Quarry of Lime was used as a raw material during investigations. It is a good agent for research because it is possible to compare the properties of samples modified in this work to the properties of anti-explosive lime powder (Polish Standard, 1994) used in mining industry in Poland. The first technique of limestone powder hydrophobization was carried out in an apparatus of own design (Vogt, 2008, 2011), and it consisted in free sedimentation of the powder layer dispersed by stearic acid vapour in powder counter current flow. The second way of modification consisted in mixing in the evaporating dish substrates: limestone powder and dope - silicone solution - Sarsil H-15 (Vogt & Opali?ski, 2009; Vogt & Ho?ownia, 2010). Evaluation of properties so-obtained waterproof powders was carried out according to the Polish Standard, as well as using original powder determination ways, with the Powder Characteristic Tester (Index tables, Tablets & Capsules, 2005). Moreover water vapour adsorption isotherms were obtained and the thermal decomposition of powder was made. All modified samples acquired the hydrophobic character. Therefore we can state that the both proposed methods of hydrophobization of the limestone powder are useful. The parameters obtained with the use of Powder Characteristics Tester enable us to make a characterization of limestone properties not only as a water resistant material but also from the cohesion point of view. On the base of TG, DTG or DTA and EGA curves for all investigated materials was stated that the character of the thermal decomposition of modified samples is the same as this one for raw powder, what is profitable for application of hydrophobized powders as an anti-explosive agent. W grnictwie w?gla kamiennego u?ywany jest hydrofobowy py? wapienny jako substancja stosowana w systemie zabezpiecze? przeciwwybuchowych (Cybulski, 2004). Niestety, dotychczasowy sposb wy- twarzania takiego produktu polegaj?cy na wsp?mieleniu kamienia wapiennego z kwasem stearynowym staje si? praktycznie niemo?liwy do stosowania w nowoczesnych zak?adach np. kamienio?omy. Sytuacja taka jest wynikiem wprowadzania zmian technologicznych, g?wnie zwi?zanych z wymian? starych konstrukcji m?ynw na nowe urz?dzenia. Tym samym istnieje potrzeba poszukiwania nowych metod hydrofobizacji powierzchni py?w wapiennych. W pracy omwiono dwie nowe metody hydrofobizacji py?u wapiennego: za pomoc? par kwasu stearynowego oraz roztworu silikonowego - Sarsil H-15. Podczas bada? u?ywano surowego py?u wapiennego pochodz?cego z Kopalni Kamienia Wapiennego w Czatkowicach. Materia? ten jest dobrym materia?em do bada? gdy? istnieje mo?liwo?? porwnywania w?a?ciwo?ci materia?w hydrofobowych otrzymanych w pracy z w?a?ciwo?ciami handlowego py?u przeciwwybuchowego (Polska Norma, 1994), u?ywanego w polskich kopalniach. Pierwszy sposb hydrofobizacji py?u wapiennego, polegaj?cy na swobodnym opadaniu py?u wapiennego w oparach kwasu stearynowego przep?ywaj?cych w przeciwpr?dzie, przeprowadzono w aparacie w?asnej konstrukcji (Vogt, 2008, 2011). Aparat gwarantuje dobry kontakt modyfikatora z ziarnami py?u. Py? opadaj?c, nie napotyka ?adnych przeszkd ulega? rozproszeniu, a wprowadzony w stanie parowym kwas stearynowy mo?e swobodnie osiada? na jego powierzchni zewn?trznej oraz penetrowa? w g??b porw, blokuj?c je dla wilgoci. Drugi sposb hydrofo

Buczek, Bronis?aw; Vogt, El?bieta

2014-03-01

303

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

304

Gas kinematics and ionization along the extended sight line to HD 116852  

NASA Technical Reports Server (NTRS)

We present Goddard High-Resolution Spectrograph intermediate observations of the interstellar medium toward HD 116852, a low halo star at a distance of 4.8 kpc (z = -1.3 kpc) in the direction l = 304. deg 9, b = 16.deg 1. The small science aperture observations have signal-to-noise ratios ranging from 30 to 90 and resolutions of 11 to 18 km/s (FWHM). We confirm the optical MK classification of this star through an analysis of its ultraviolet photosperic and stellar wind profiles. We detect interstellar lines of Al III, Si IV, C IV, and N V together with lines of C I, C I*, C I**, Si II, Ge II, P II, and Ni II. We convert the Mg II, P II, S II, Al III, Si IV, C IV, and N V profiles into measure of apparent column density as a function of LSR velocity. Gas scale height, velocity dispersion, and differential Galactic rotation effects govern the profile shapes. A simple computer model of the expected sight line column density profiles for the low and high ion species indicates that the gas velocity dispersions and scale heights increase as the ionization level of the gas increases. We find scale heigts H greater than or = 1 kpc for the high ions, which are comparable to the z-distance of the star, whereas we find H approximatley = 0.6 to 0.7 kpc for A1 III and H approximatley 0.1 kpc for P II and Ge II. An enhancement in the Al II profile near -15 km/s accounts for approximately 25% of the A1 III column along the sight line and probably arises within gas located approximately 500 pc below the Sagittarius-Carina spiral arm link. Portions of the broad underlying A1 III distribution are associated with the higher ionization lines, perhaps in conductive interfaces. The presence of N V and the column density ratios of Si IV, C IV, and N V favor the interpretation that much of the high ion absorption is produced by collisional ionization in gas with T = 1-3 x 10(exp 5) K. An enhancement near -35 km/s in both the Si IV and C IV profiles may be due to an outflow from the Norma spiral arm at a z-distance of about -1 kpc. The smooth decrease of the N(C IV)/N(Si IV) ratio at negative velocities may be due to an ISM ionization structure for hot gas that changes distance from the Galactic plane or to a two phase gas distribution in which the relative contribution from each phase changes with distance from the Galactic plane.

Sembach, Kenneth R.; Savage, Blair D.

1994-01-01

305

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). Rgles de calcul intrimaires pour les btiments en Hati, Ministre des Travaux Publics, Transports et Communications, Fvrier 2011, Hati. -NBCC 2005: National Building Code of Canada, vol1, National Research Council of Canada 2005. -NCSE-02: Norma de construccin sismorresistente de Espaa. 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 anlisis y diseo ssmico de estructuras de Repblica Dominicana. Decreto No. 201-11. Ministerio de Obras Pblicas y Comunicaciones.

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

2013-05-01