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Sample records for amar matrimonio normas

  1. A Comparative Study of the English Verbs "Say"/"Tell" and the Hebrew Words "Amar"/"Siper."

    ERIC Educational Resources Information Center

    Sopher, H.

    1987-01-01

    Compares the use of the English verbs "say" and "tell" and the Hebrew verbs "amar" and "siper" and then examines the degree of correspondence between "say" and "amar" and between "tell" and "siper." (CB)

  2. Astronomía y Física: un matrimonio Sartriano

    NASA Astrophysics Data System (ADS)

    Vucetich, H.

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

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

    ERIC Educational Resources Information Center

    Pérez-Leroux, Ana T.

    2014-01-01

    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…

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

    ERIC Educational Resources Information Center

    Slabakova, Roumyana

    2014-01-01

    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…

  5. E-Interview: Norma Fox Mazer.

    ERIC Educational Resources Information Center

    Angel, Ann

    2001-01-01

    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)

  6. Teaching Labor Relations with "Norma Rae"

    ERIC Educational Resources Information Center

    Taylor, Vicki Fairbanks; Provitera, Michael J.

    2011-01-01

    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…

  7. Norma Gray: Leading the Way for Children.

    ERIC Educational Resources Information Center

    Casto, James E.

    1999-01-01

    Founded by Norma Gray in 1972 as an early-childhood demonstration center, River Valley Child Development Services now operates various programs related to young children in nine southern West Virginia counties and a statewide apprenticeship program for child-development specialists. Programs provide child care, after-school programs,…

  8. Application of kinematic vorticity techniques for mylonitized Rocks in Al Amar suture, eastern Arabian Shield, Saudi Arabia

    NASA Astrophysics Data System (ADS)

    Hamimi, Z.; Kassem, O. M. K.; El-Sabrouty, M. N.

    2015-09-01

    The rotation of rigid objects within a flowing viscous medium is a function of several factors including the degree of non-coaxiality. The relationship between the orientation of such objects and their aspect ratio can be used in vorticity analyses in a variety of geological settings. Method for estimation of vorticity analysis to quantitative of kinematic vorticity number (Wm) has been applied using rotated rigid objects, such as quartz and feldspar objects. The kinematic vorticity number determined for high temperature mylonitic Abt schist in Al Amar area, extreme eastern Arabian Shield, ranges from ˜0.8 to 0.9. Obtained results from vorticity and strain analyses indicate that deformation in the area deviated from simple shear. It is concluded that nappe stacking occurred early during an earlier thrusting event, probably by brittle imbrications. Ductile strain was superimposed on the nappe structure at high-pressure as revealed by a penetrative subhorizontal foliation that is developed subparallel to tectonic contacts versus the underlying and overlying nappes. Accumulation of ductile strain during underplating was not by simple shear but involved a component of vertical shortening, which caused the subhorizontal foliation in the Al Amar area. In most cases, this foliation was formed concurrently with thrust sheets imbrications, indicating that nappe stacking was associated with vertical shortening.

  9. V390 Nor = Nova Normae 2007

    NASA Astrophysics Data System (ADS)

    Waagen, Elizabeth O.

    2007-06-01

    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.

  10. Geochemical characteristics of basaltic glasses from the AMAR and FAMOUS axial valleys, Mid-Atlantic Ridge (36°-37°N): Petrogenetic implications

    NASA Astrophysics Data System (ADS)

    Frey, F. A.; Walker, N.; Stakes, D.; Hart, S. R.; Nielsen, R.

    1993-03-01

    The axial valley of the Mid-Atlantic Ridge from 36° to 37°N was intensively sampled by submersible during the FAMOUS and AMAR projects. Our research focussed on the compositional and isotopic characteristics of basaltic glasses from the AMAR valley and the NARROWGATE region of the FAMOUS valley. These basaltic glasses are characterized by: (1) major element abundance trends that are consistent with control by multiphase fractionation (olivine, plagioclase and clinopyroxene) and magma mixing, (2) near isotopic homogeneity δ 18O= 5.2to6.4 , 87Sr/ 86Sr= 0.70288to0.70299 and 206Pb/ 204Pb= 18.57to18.84 , and (3) a wide range of incompatible element abundance ratios; e.g., within the AMAR valley chondrite-normalized La/Sm ranges from 0.7 to 1.5 and La/Yb from 0.6 to 1.6. These ratios increase with decreasing MgO content. Because of the limited variations in isotopic ratios of Sr, Nd and Pb, it is plausible that these compositional variations reflect post-melting magmatic processes. However, it is not possible to explain the correlated variation in MgO content and incompatible element abundance ratios, such as La/Sm and Zr/Nb, by fractional crystallization or more complex processes such as boundary layer fractionation. These geochemical trends can be explained by mixing of parental magmas that formed by very different extents of melting. In particular, the factor of three variation in Ce content in samples with ˜ 2.1% Na 2O and 8% MgO requires a component derived by < 1% melting. If the large variations in abundance ratios of incompatible elements reflect the melting process, a large, long-lived magma chamber was not present during eruption of these AMAR lavas. The geological characteristics of the AMAR valley and the compositions of AMAR lavas are consistent with episodic volcanism; i.e., periods of magma eruption were followed by extensive periods of tectonism with little or no magmatism.

  11. ODEs approaches in modeling fibrosis. Comment on "Towards a unified approach in the modeling of fibrosis: A review with research perspectives" by Martine Ben Amar and Carlo Bianca

    NASA Astrophysics Data System (ADS)

    Ragusa, Maria Alessandra; Russo, Giulia

    2016-07-01

    Ben Amar and Bianca valuably reviewed the state of the art of fibrosis modeling approach scenario [1]. Each paragraph identifies and examines a specific theoretical tool according to their scale level (molecular, cellular or tissue). For each of them it is shown the area of application, along with a clear description of strong and weak points. This critical analysis denotes the necessity to develop a more suitable and original multiscale approach in the future [2].

  12. FAMOUS and AMAR segments on the Mid-Atlantic Ridge: ubiquitous hydrothermal Mn, CH 4, δ3He signals along the rift valley walls and rift offsets

    NASA Astrophysics Data System (ADS)

    Bougault, H.; Aballéa, M.; Radford-Knoery, J.; Charlou, J. L.; Baptiste, P. Jean; Appriou, P.; Needham, H. D.; German, C.; Miranda, M.

    1998-09-01

    Dynamic hydrocast experiments enabled Mn (TDM), CH 4 concentrations and δ3He ratio to be recorded through vertical cross-sections of hydrothermal plumes along the FAMOUS segment and the southern part of the AMAR segment on the Mid-Atlantic Ridge between 36°N and 37°N. Mn, CH 4 and δ3He figures all along both segments are well above the seawater background in the open ocean: they are interpreted to be the result of time-integrated hydrothermal discharges dispersed and mixed in a closed basin delineated by the rift valley and the segment ends. Hydrothermal activity along the FAMOUS and AMAR segments appears to be similar. A comparison of the residence times of the three tracers from the dispersed, time-integrated signals is proposed. Although the background values in these closed basin are high, some proximal and (or) large hydrothermal inputs, overprinted on the general time-integrated plume, can be detected (i.e. the Rainbow site south of AMAR). Based on the depth and the location of plumes, hydrothermal activity is not, by far, limited to the neo-volcanic inner floor of the valley and should involve the walls and complex offsets of the rift valley. Considering the Mn and CH 4 concentrations in these plumes, two types of ocean-mantle interaction may be represented: hot, focused discharges on ultramafic exposures (Rainbow site) and low-temperature diffuse serpentinisation.

  13. Generalization of Suppression in Norma Khouri's "Forbidden Love"

    ERIC Educational Resources Information Center

    Mariam, Olya; Rana, Sidra

    2014-01-01

    The aim of this research is to critique the repercussions of over-generalization of a social issue as depicted in Norma Khouri's "Forbidden Love." The novel/memoir has been written against the 9/11 backdrop and as such serves as means of sensationalizing and exploiting a cultural event which unfortunately echoes in the East. The…

  14. Location of the Norma transient with the HEAO 1 scanning modulation collimator. [X ray source in Norma Constellation

    NASA Technical Reports Server (NTRS)

    Fabbiano, G.; Gursky, H.; Schwartz, D. A.; Schwarz, J.; Bradt, H. V.; Doxsey, R. E.

    1978-01-01

    A precise position has been obtained for an X-ray transient source in Norma. The location uncertainty includes a variable star previously suggested to be the optical counterpart. This transient is associated with the steady X-ray source MX 1608-52 and probably with an X-ray burst source. A binary system containing a low-mass primary and a neutron-star or black-hole secondary of a few solar masses is consistent with the observations.

  15. Uhuru observations of the Norma X-ray burster

    NASA Technical Reports Server (NTRS)

    Grindlay, J.; Gursky, H.

    1976-01-01

    Four X-ray bursts consistent with a single source in Norma are reported which were discovered by reexamining Uhuru data obtained between 1970 and 1973. The temporal and spectral characteristics of the bursts are described and shown to be similar to those displayed by bursts from the globular cluster NGC 6224. An error box of the source location is given, and it is found that both the position and intensity of the four bursts are consistent with those of 10 bursts detected by the Vela satellites in 1976. It is concluded that the source is the same as that observed by the Vela and is an X-ray burster with characteristics similar to those of certain other bursters. XB 1608-52 is suggested as the designation of this burster, possible burst models are considered, and it is noted that the error box of the present source contains an identified globular cluster.

  16. The remodeling of the fibers texture Comment on "Towards a unified approach in the modeling of fibrosis: A review with research perspectives" by Martine Ben Amar and Carlo Bianca

    NASA Astrophysics Data System (ADS)

    Napoli, Gaetano

    2016-07-01

    The term fibrosis refers to the development of fibrous connective tissue, in an organ or in a tissue, as a reparative response to injury or damage. The review article by Ben Amar and Bianca [1] proposes a unified multiscale approach for the modeling of fibrosis, accounting for phenomena occurring at different spatial scales (molecular, cellular and macroscopic). The main aim is to define a general unified framework able to describe the mechanisms, not yet completely understood, that trigger physiological and pathological fibrosis.

  17. Sandqvist 187 - A dense molecular cloud in Norma

    NASA Technical Reports Server (NTRS)

    Alvarez, H.; Bronfman, L.; Cohen, R.; Garay, G.; Graham, J.; Thaddeus, P.

    1986-01-01

    Observations of Sandqvist 187, an elongated dust cloud in the southern constellation Norma are presented and discussed. The cloud contains two Herbig-Haro objects, HH 56 and HH 57. HH 57 currently displays on its NE edge a 17th mag variable star of the FU Ori type. Using the Columbia University 1.2 m millimeter-wave telescope at Cerro Tololo, the region is mapped and an extended CO cloud which envelops and is elongated along the optical dust cloud is found. The position of maximum CO emission coincides with HH 56 and HH 57. Assuming a distance of 0.7 kpc, the total mass of the cloud is found to be close to 500 solar masses. The CO spectra show evidence of a molecular flow. Photographs and CCD images obtained mostly with the CTIO 4 m telescope show the detailed optical structure of the dark cloud's core region. The Herbig-Haro object HH 56 appears to be related to an emission-line star embedded in the small nebula Reipurth 13, not to the FU Ori star in HH 57.

  18. U-Pb zircon geochronology and geological evolution of the Halaban- Al Amar region of the eastern Arabian Shield, Kingdom of Saudi Arabia.

    USGS Publications Warehouse

    Stacey, J.S.; Stoeser, D.B.; Greenwood, W.R.; Fischer, L.B.

    1984-01-01

    U/Pb zircon model ages for 11 major units from this region indicate three stages of evolution: 1) plate convergence, 2) plate collision and 3) post-orogenic intracratonic activity. Convergence occurred between the western Afif and eastern Ar Rayn plates that were separated by oceanic crust. Remnants of crust now comprise the ophiolitic complexes of the Urd group; the oldest plutonic unit studied is from one such complex, and gave an age of 694-698 m.y., while detrital zircons from an intercalated sedimentary formation were derived from source rocks with a mean age of 710 m.y. Plate convergence was terminated by collision of the two plates during the Al Amar orogeny which began at -670 m.y.; during collision, the Urd group rocks were deformed and in part obducted on to one or other of the plates. Synorogenic granitic rocks were intruded from 670 to 640 m.y., followed from 640 to 630 m.y. by unfoliated dioritic plutons emplaced in the Ar Rayn block.-R.A.H.

  19. A Receding Halo Sub-structure Towards Norma

    NASA Astrophysics Data System (ADS)

    Chakrabarti, Sukanya

    2016-01-01

    We present results from follow-up spectroscopic observations of clustered Cepheid candidates identified from K-band light curves towards the Norma constellation (Chakrabarti et al. 2015), as well as others that we have found more recently. The average radial velocity of these stars is ~ 200 km/s, which is large and distinct from that of the Galaxy's stellar disk. These objects at l ~ -27 and b ~ -1 are therefore halo stars; using the period-luminosity relation of Type I Cepheids, they are at ~ 90 kpc. While the spectra do not have sufficient S/N to independently determine the metallicity and spectral type of the stars, there is a clear correspondence between the observed Brackett series lines in these observations and in known Type I Cepheids. Distances determined from the K-band period-luminosity relation (Matsunaga et al. 2013) and the 3.6 μm period-luminosity relation (Scowcroft et al. 2011) agree closely, and I-band observations have confirmed the periods of these sources. The extinction corrected J - Ks colors of these sources are comparable to known Type I Cepheids (Persson et al. 2004). The observed radial velocity of these stars agrees with predictions from dynamical models (Chakrabarti & Blitz 2009). If these stars are indeed members of the predicted dark-matter dominated dwarf galaxy that perturbed the outer HI disk of the Milky Way, this would represent the first application of Galactoseismology. These observations also challenge models of the Galactic halo. Young Cepheid variables are unexpected in models of the Galactic halo, though star formation due to infall of gas-rich dwarf galaxies may well produce a small population of yet undiscovered Cepheids in the outer halo.

  20. The Norma arm region Chandra survey catalog: X-ray populations in the spiral arms

    SciTech Connect

    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

    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 ≥3σ 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 f{sub X} ≈ 10{sup –14} erg cm{sup –2} s{sup –1}, but the distribution curve flattens at fainter fluxes. We find good agreement between the observed distribution and predictions based on other surveys.

  1. Biological systems modeling in the context of fibrosis. Comment on "Towards a unified approach in the modeling of fibrosis: A review with research perspectives" by Martine Ben Amar and Carlo Bianca

    NASA Astrophysics Data System (ADS)

    Kolev, Mikhail K.

    2016-07-01

    Over the last decades the collaboration between scientists from biology, medicine and pharmacology on one side and scholars from mathematics, physics, mechanics and computer science on the other has led to better understanding of the properties of living systems, the mechanisms of their functioning and interactions with the environment and to the development of new therapies for various disorders and diseases. The target paper [1] by Ben Amar and Bianca presents a detailed description of the research methods and techniques used by biomathematicians, bioinformaticians, biomechanicians and biophysicists for studying biological systems, and in particular in the context of pathological fibrosis.

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

    ERIC Educational Resources Information Center

    Berry, John N., III

    2008-01-01

    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…

  3. Creating Imaginative Worlds: Unique Details and Structure in Norma Fox Mazer's Young Adult Fiction.

    ERIC Educational Resources Information Center

    Angel, Ann

    2001-01-01

    Discusses how writer Norma Fox Mazer has helped many readers make the leap between reality and imagination simply in the way she handles details in the lives of her characters. Explores the ideas of communicating with detail, experimenting with structure, and playing with time in crucial scenes. (SG)

  4. Using Norma Fox Mazer's "Out of Control" To Reach Kids Where They Hide.

    ERIC Educational Resources Information Center

    Bott, C J

    2001-01-01

    Discusses how one teacher uses Norma Fox Mazer's "Out of Control" to explore leaders and followers as the main topic of discussion in a sophomore class. Describes how students keep a reader's journal with quotations from the text and personal responses. (SG)

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

    ERIC Educational Resources Information Center

    Pehkonen, Erkki, Ed.

    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…

  6. The role of time delay in the modeling of fibrosis. Comment on "Towards a unified approach in the modeling of fibrosis: A review with research perspectives" by Martine Ben Amar and Carlo Bianca

    NASA Astrophysics Data System (ADS)

    Guerrini, Luca

    2016-07-01

    Martine Ben Amar and Carlo Bianca have written a valuable paper [1], which is a timely review of the different theoretical tools for the modeling of physiological and pathological fibrosis existing in the literature. The review [1] is written with clarity and in a simple way, which makes it understandable to a wide audience. The author presents an exhaustive exposition of the interplay between the different scholars which works in the modeling of fibrosis diseases and a survey of the main theoretical approaches, among others, ODE-based models, PDE-based models, models with internal structure, mechanics of continuum approach, agent-based models. A critical analysis discusses their applicability, including advantages and disadvantages.

  7. Agent based simulations in disease modeling Comment on "Towards a unified approach in the modeling of fibrosis: A review with research perspectives" by Martine Ben Amar and Carlo Bianca

    NASA Astrophysics Data System (ADS)

    Pappalardo, Francesco; Pennisi, Marzio

    2016-07-01

    Fibrosis represents a process where an excessive tissue formation in an organ follows the failure of a physiological reparative or reactive process. Mathematical and computational techniques may be used to improve the understanding of the mechanisms that lead to the disease and to test potential new treatments that may directly or indirectly have positive effects against fibrosis [1]. In this scenario, Ben Amar and Bianca [2] give us a broad picture of the existing mathematical and computational tools that have been used to model fibrotic processes at the molecular, cellular, and tissue levels. Among such techniques, agent based models (ABM) can give a valuable contribution in the understanding and better management of fibrotic diseases.

  8. Comparison of mathematical models of fibrosis. Comment on "Towards a unified approach in the modeling of fibrosis: A review with research perspectives" by M. Ben Amar and C. Bianca

    NASA Astrophysics Data System (ADS)

    Kachapova, Farida

    2016-07-01

    Mathematical and computational models in biology and medicine help to improve diagnostics and medical treatments. Modeling of pathological fibrosis is reviewed by M. Ben Amar and C. Bianca in [4]. Pathological fibrosis is the process when excessive fibrous tissue is deposited on an organ or tissue during a wound healing and can obliterate their normal function. In [4] the phenomena of fibrosis are briefly explained including the causes, mechanism and management; research models of pathological fibrosis are described, compared and critically analyzed. Different models are suitable at different levels: molecular, cellular and tissue. The main goal of mathematical modeling of fibrosis is to predict long term behavior of the system depending on bifurcation parameters; there are two main trends: inhibition of fibrosis due to an active immune system and swelling of fibrosis because of a weak immune system.

  9. A time for multi-scale modeling of anti-fibrotic therapies. Comment on "Towards a unified approach in the modeling of fibrosis: A review with research perspectives" by Martine Ben Amar and Carlo Bianca

    NASA Astrophysics Data System (ADS)

    Wu, Min

    2016-07-01

    The development of anti-fibrotic therapies in diversities of diseases becomes more and more urgent recently, such as in pulmonary, renal and liver fibrosis [1,2], as well as in malignant tumor growths [3]. As reviewed by Ben Amar and Bianca [4], various theoretical, experimental and in-silico models have been developed to understand the fibrosis process, where the implication on therapeutic strategies has also been frequently demonstrated (e.g., [5-7]). In [4], these models are analyzed and sorted according to their approaches, and in the end of [4], a unified multi-scale approach was proposed to understand fibrosis. While one of the major purposes of extensive modeling of fibrosis is to shed light on therapeutic strategies, the theoretical, experimental and in-silico studies of anti-fibrosis therapies should be conducted more intensively.

  10. [Vertical superposition on distance radiography in norma lateralis: normal or asymmetrical?].

    PubMed

    Durand, A S; Durand, J; Deblock, L

    2003-12-01

    Cephalometric analysis, together with clinical examination and study of models, is an essential tool in practitioners' preparations of orthodontic diagnoses for their patients. However, despite the use of standardized techniques, cephalograms in norma lateralis still inescapably superimpose patients' right and left sides on each other. This study attempts to demonstrate the significance of these superimpositions particularly when serial cephalograms are themselves superimposed on each other to discern growth or treatment changes.

  11. Rotation Period Determination for 396 Aeolia, 298 Admete, 422 Berolina, and 555 Norma

    NASA Astrophysics Data System (ADS)

    Pilcher, Frederick

    2017-04-01

    Synodic rotation periods and amplitudes are found for 396 Aeolia 14.353 ± 0.001 hours, 0.36 ± 0.02 magnitudes; 398 Admete 20.993 ± 0.001 hours, 0.07 ± 0.01 magnitudes; 422 Berolina 25.978 ± 0.001 hours, 0.16 ± 0.02 magnitudes; 555 Norma 19.508 ± 0.002 hours, 0.25 ± 0.02 magnitudes.

  12. The NuSTAR Hard X-Ray Survey of the Norma Arm Region

    NASA Astrophysics Data System (ADS)

    Fornasini, Francesca M.; Tomsick, John A.; Hong, JaeSub; Gotthelf, Eric V.; Bauer, Franz; Rahoui, Farid; Stern, Daniel; Bodaghee, Arash; Chiu, Jeng-Lun; Clavel, Maïca; Corral-Santana, Jesús; Hailey, Charles J.; Krivonos, Roman A.; Mori, Kaya; Alexander, David M.; Barret, Didier; Boggs, Steven E.; Christensen, Finn E.; Craig, William W.; Forster, Karl; Giommi, Paolo; Grefenstette, Brian W.; Harrison, Fiona A.; Hornstrup, Allan; Kitaguchi, Takao; Koglin, J. E.; Madsen, Kristin K.; Mao, Peter H.; Miyasaka, Hiromasa; Perri, Matteo; Pivovaroff, Michael J.; Puccetti, Simonetta; Rana, Vikram; Westergaard, Niels J.; Zhang, William W.

    2017-04-01

    We present a catalog of hard X-ray sources in a square-degree region surveyed by the Nuclear Spectroscopic Telescope Array (NuSTAR) in the direction of the Norma spiral arm. This survey has a total exposure time of 1.7 Ms, and the typical and maximum exposure depths are 50 ks and 1 Ms, respectively. In the area of deepest coverage, sensitivity limits of 5 × 10‑14 and 4 × 10‑14 erg s‑1 cm‑2 in the 3–10 and 10–20 keV bands, respectively, are reached. Twenty-eight sources are firmly detected, and 10 are detected with low significance; 8 of the 38 sources are expected to be active galactic nuclei. The three brightest sources were previously identified as a low-mass X-ray binary, high-mass X-ray binary, and pulsar wind nebula. Based on their X-ray properties and multiwavelength counterparts, we identify the likely nature of the other sources as two colliding wind binaries, three pulsar wind nebulae, a black hole binary, and a plurality of cataclysmic variables (CVs). The CV candidates in the Norma region have plasma temperatures of ≈10–20 keV, consistent with the Galactic ridge X-ray emission spectrum but lower than the temperatures of CVs near the Galactic center. This temperature difference may indicate that the Norma region has a lower fraction of intermediate polars relative to other types of CVs compared to the Galactic center. The NuSTAR logN–logS distribution in the 10–20 keV band is consistent with the distribution measured by Chandra at 2–10 keV if the average source spectrum is assumed to be a thermal model with kT ≈ 15 keV, as observed for the CV candidates.

  13. La EPA propone normas más rigurosas para las personas que aplican los plaguicidas de más alto riesgo

    EPA Pesticide Factsheets

    La EPA emitió una propuesta para la revisión de la norma para la Certificación de Aplicadores de Plaguicidas. La norma ayudará a mantener nuestras comunidades seguras, salvaguardar el medio ambiente y reducir el riesgo a los que aplican los plaguicidas.

  14. Initial results from NuSTAR observations of the Norma Arm

    SciTech Connect

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

    2014-08-10

    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 deg{sup 2} 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.

  15. The importance of being marginal: Norma Ford Walker and a Canadian school of medical genetics.

    PubMed

    Miller, Fiona

    2002-08-30

    This study reviews the development of a medical genetics research tradition in Toronto, Canada. This research tradition, what I call the "Ford Walker school," was forged in the 1930s in an iconoclastic mold. It was female-dominated in an era when leading-edge science was definitely not "women's work." It emerged in a leading research university, but in a country that lagged in the sciences. These social relations of gender and nation symbolized and sustained a marginality that was reinforced by the substantive concerns of members of this research school. They adopted a service orientation toward medicine, were sympathetic to heterodox approaches to genetic and medical science, and were principally reliant on a marginal research tool-dermatoglyphics. Despite this marginality, Norma Ford Walker was among the founding members of the institutions of human and medical genetics in North America in the postwar period. She forged a research tradition that served as the basis for further developments in medical genetics in Toronto and educated a generation of students, many of them women, who went on to populate and then institutionalize the growing science and practice of medical genetics in Canada. The heterodox approach of the early Ford Walker school was displaced as the field grew in the postwar period. Yet many members of the research school retained dermatoglyphic technique and used it to contribute to progress in medical cytogenetics. In this article, I explore why the history of this marginal research school is important.

  16. V346 Normae: first post-outburst observations of an FU Orionis star

    NASA Astrophysics Data System (ADS)

    Kraus, S.; Caratti o Garatti, A.; Garcia-Lopez, R.; Kreplin, A.; Aarnio, A.; Monnier, J. D.; Naylor, T.; Weigelt, G.

    2016-10-01

    During their formation phase, stars gain most of their mass in violent episodic accretion events, such as observed in FU Orionis (FUor) and EXor stars. V346 Normae is a well-studied FUor that underwent a strong outburst beginning around 1980. Here, we report on photometric and spectroscopic observations, which show that the visual/near-infrared brightness has decreased dramatically between the 1990s and 2010 (ΔR ≈ 10.9 mag, ΔJ ≈ 7.8 mag and ΔK ≈ 5.8 mag). The spectral properties of this fading event cannot be explained by variable extinction alone, but indicate a drop in accretion rate by two to three orders of magnitude. This is the first time that a member of the FUor class has been observed to switch to a very low accretion phase. Remarkably, in the last few years (2011-2015) V346 Nor has brightened again at all near-infrared wavelengths, indicating the onset of a new outburst event. The observed behaviour might be consistent with the clustered luminosity bursts that have been predicted by recent gravitational instability and fragmentation models for the early stages of protostellar evolution. Given V346 Nor's unique characteristics (concerning outburst duration, repetition frequency and spectroscopic diagnostics), our results also highlight the need to revisit the FUor/EXor classification scheme.

  17. Dynamical Mass Measurement of the Young Spectroscopic Binary V343 Normae AaAb Resolved With the Gemini Planet Imager

    NASA Astrophysics Data System (ADS)

    Nielsen, Eric L.; De Rosa, Robert J.; Wang, Jason; Rameau, Julien; Song, Inseok; Graham, James R.; Macintosh, Bruce; Ammons, Mark; Bailey, Vanessa P.; Barman, Travis S.; Bulger, Joanna; Chilcote, Jeffrey K.; Cotten, Tara; Doyon, Rene; Duchêne, Gaspard; Fitzgerald, Michael P.; Follette, Katherine B.; Greenbaum, Alexandra Z.; Hibon, Pascale; Hung, Li-Wei; Ingraham, Patrick; Kalas, Paul; Konopacky, Quinn M.; Larkin, James E.; Maire, Jérôme; Marchis, Franck; Marley, Mark S.; Marois, Christian; Metchev, Stanimir; Millar-Blanchaer, Maxwell A.; Oppenheimer, Rebecca; Palmer, David W.; Patience, Jenny; Perrin, Marshall D.; Poyneer, Lisa A.; Pueyo, Laurent; Rajan, Abhijith; Rantakyrö, Fredrik T.; Savransky, Dmitry; Schneider, Adam C.; Sivaramakrishnan, Anand; Soummer, Remi; Thomas, Sandrine; Wallace, J. Kent; Ward-Duong, Kimberly; Wiktorowicz, Sloane J.; Wolff, Schuyler G.

    2016-12-01

    We present new spatially resolved astrometry and photometry from the Gemini Planet Imager of the inner binary of the young multiple star system V343 Normae, which is a member of the β Pictoris (β Pic) moving group. V343 Normae comprises a K0 and mid-M star in a ˜4.5 year orbit (AaAb) and a wide 10″ M5 companion (B). By combining these data with archival astrometry and radial velocities we fit the orbit and measure individual masses for both components of {M}{Aa}=1.10+/- 0.10 {M}⊙ and {M}{Ab}=0.290+/- 0.018 {M}⊙ . Comparing to theoretical isochrones, we find good agreement for the measured masses and JHK band magnitudes of the two components consistent with the age of the β Pic moving group. We derive a model-dependent age for the β Pic moving group of 26 ± 3 Myr by combining our results for V343 Normae with literature measurements for GJ 3305, which is another group member with resolved binary components and dynamical masses.

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

    PubMed

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

    2010-10-01

    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.

  19. AMAR: A Computational Model of Autosegmental Phonology

    DTIC Science & Technology

    1993-10-01

    the 8th International Joint Conference on Artificial Inteligence . 683-5. Koskenniemi, K. 1984. A general computational model for word-form recognition...NUMBER Massachusetts Institute of Technology Artificial Intelligence Laboratory AI-TR 1450 545 Technology Square Cambridge, Massachusetts 02139 9...reader a feel for the workinigs of ANIAR. this chapter will begini withi a very sininpb examl- ple based oni ani artificial tonie laniguage with oiony t

  20. NORMA: a tool for flexible fitting of high-resolution protein structures into low-resolution electron-microscopy-derived density maps.

    PubMed

    Suhre, Karsten; Navaza, Jorge; Sanejouand, Yves Henri

    2006-09-01

    This paper describes a freely available software suite that allows the modelling of large conformational changes of high-resolution three-dimensional protein structures under the constraint of a low-resolution electron-density map. Typical applications are the interpretation of electron-microscopy data using atomic scale X-ray structural models. The software package provided should enable the interested user to perform flexible fitting on new cases without encountering major technical difficulties. The NORMA software suite including three fully executable reference cases and extensive user instructions are available at http://www.elnemo.org/NORMA/.

  1. Whole-Genome Sequence of Leptospira interrogans Serovar Hardjo Subtype Hardjoprajitno Strain Norma, Isolated from Cattle in a Leptospirosis Outbreak in Brazil.

    PubMed

    Cosate, M R V; Soares, S C; Mendes, T A; Raittz, R T; Moreira, E C; Leite, R; Fernandes, G R; Haddad, J P A; Ortega, J Miguel

    2015-11-05

    Leptospirosis is caused by pathogenic bacteria of the genus Leptospira spp. This neglected re-emergent disease has global distribution and relevance in veterinary production. Here, we report the whole-genome sequence and annotation of Leptospira interrogans serovar Hardjo subtype Hardjoprajitno strain Norma, isolated from cattle in a livestock leptospirosis outbreak in Brazil.

  2. Whole-Genome Sequence of Leptospira interrogans Serovar Hardjo Subtype Hardjoprajitno Strain Norma, Isolated from Cattle in a Leptospirosis Outbreak in Brazil

    PubMed Central

    Soares, S. C.; Mendes, T. A.; Raittz, R. T.; Moreira, E. C.; Leite, R.; Fernandes, G. R.; Haddad, J. P. A.; Ortega, J. Miguel

    2015-01-01

    Leptospirosis is caused by pathogenic bacteria of the genus Leptospira spp. This neglected re-emergent disease has global distribution and relevance in veterinary production. Here, we report the whole-genome sequence and annotation of Leptospira interrogans serovar Hardjo subtype Hardjoprajitno strain Norma, isolated from cattle in a livestock leptospirosis outbreak in Brazil. PMID:26543126

  3. Investigating CXOU J163802.6–471358: A new pulsar wind nebula in the norma region?

    SciTech Connect

    Jakobsen, Simone J.; Watson, Darach; Tomsick, John A.; Gotthelf, Eric V.; Kaspi, Victoria M.

    2014-06-01

    We present the first analysis of the extended source CXOU J163802.6–471358, which was discovered serendipitously during the Chandra X-ray survey of the Norma region of the Galactic spiral arms. The X-ray source exhibits a cometary appearance with a point source and an extended tail region. The complete source spectrum is fitted well with an absorbed power law model and jointly fitting the Chandra spectrum of the full source with one obtained from an archived XMM-Newton observation results in best fit parameters N {sub H} =1.5{sub −0.5}{sup +0.7}×10{sup 23} cm{sup −2} and Γ=1.1{sub −0.6}{sup +0.7} (90% confidence uncertainties). The unabsorbed luminosity of the full source is then L{sub X}∼4.8×10{sup 33}d{sub 10}{sup 2} erg s{sup –1} with d {sub 10} = d/10 kpc, where a distance of 10 kpc is a lower bound inferred from the large column density. The radio counterpart found for the source using data from the Molonglo Galactic Plane Survey epoch-2 shows an elongated tail offset from the X-ray emission. No infrared counterpart was found. The results are consistent with the source being a previously unknown pulsar driving a bow shock through the ambient medium.

  4. Etnografía acelerada para transformar normas sociales sobre género y sexualidad en hombres puertorriqueños heterosexuales1,2

    PubMed Central

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

    2014-01-01

    Resumen La construcción de roles de género dominantes contribuyen al riesgo de contraer VIH, y por tal razón se ha urgido a que se integren las normas sociales relativas al género en las intervenciones preventivas del VIH. Este estudio pretende adaptar y desarrollar una intervención que facilite la transformación de normas sociales del género y de prácticas sexuales en hombres puertorriqueños. La intervención propone transformar normas sociales relacionadas al género y sexualidad en barras comunitarias utilizando el modelo de líderes de opinión. Luego de ser elegidos/as, los/as líderes de opinión diseminan mensajes integrando la importancia de relaciones equitativas entre parejas para la prevención del VIH. La primera fase de esta intervención es discutida en este artículo, la cual incluye un proceso de etnografía acelerada para identificar los escenarios comunitarios en los que podemos desarrollar esta intervención y permitirnos entender la cultura de las barras comunitarias. A partir de las observaciones etnográficas, 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 intervención para que respondieran a la particularidad de los/as participantes. PMID:25530828

  5. Uhuru observations of 4U 1608-52 - The 'steady' X-ray source associated with the X-ray burst source in Norma

    NASA Technical Reports Server (NTRS)

    Tananbaum, H.; Chaisson, L. J.; Forman, W.; Jones, C.; Matilsky, T. A.

    1976-01-01

    Data are presented for the X-ray source 4U 1608-52, summarizing its light curve, location, and spectral parameters. Evidence is presented showing that this source is the 'steady' X-ray counterpart of the X-ray burst source in Norma. The spectrum of the 'steady' source is compared with the spectrum observed during two bursts, and it is noted that there is substantially more low-energy absorption during the bursts. The 'steady' source spectral data are used to examine the optical data, and it is concluded that if the X-ray spectrum is thermal, then a globular-cluster counterpart probably would have been detected (whereas none has been). Further X-ray and optical observations are suggested for this source, since an optical identification may be central in determining whether all X-ray bursts have a common origin and if this origin requires a globular-cluster environment.

  6. Abundant molecular gas and inefficient star formation in intracluster regions: ram pressure stripped tail of the Norma galaxy ESO137-001

    SciTech Connect

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

    2014-09-01

    For the first time, we reveal large amounts of cold molecular gas in a ram-pressure-stripped tail, out to a large 'intracluster' distance from the galaxy. With the Actama Pathfinder EXperiment (APEX) telescope, we have detected {sup 12}CO(2-1) emission corresponding to more than 10{sup 9} M {sub ☉} of H{sub 2} in three Hα bright regions along the tail of the Norma cluster galaxy ESO 137-001, out to a projected distance of 40 kpc from the disk. ESO 137-001 has an 80 kpc long and bright X-ray tail associated with a shorter (40 kpc) and broader tail of numerous star forming H II regions. The amount of ∼1.5 × 10{sup 8} M {sub ☉} of H{sub 2} found in the most distant region is similar to molecular masses of tidal dwarf galaxies, though the standard Galactic CO-to-H{sub 2} factor could overestimate the H{sub 2} content. Along the tail, we find the amount of molecular gas to drop, while masses of the X-ray-emitting and diffuse ionized components stay roughly constant. Moreover, the amounts of hot and cold gas are large and similar, and together nearly account for the missing gas from the disk. We find a very low SFE (τ{sub dep} > 10{sup 10} yr) in the stripped gas in ESO 137-001 and suggest that this is due to a low average gas density in the tail, or turbulent heating of the interstellar medium that is induced by a ram pressure shock. The unprecedented bulk of observed H{sub 2} in the ESO 137-001 tail suggests that some stripped gas may survive ram pressure stripping in the molecular phase.

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

    NASA Astrophysics Data System (ADS)

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

    2014-09-01

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

  8. Norma Rae, R.N.

    PubMed

    Bilchik, G S

    2001-03-01

    Unions are becoming more attractive to nurses who feel increasingly unappreciated and disenfranchised from the decisionmaking process. But unions can cause big headaches for management and the board. The best way to keep unions off your doorstep is to listen to what your nurses want.

  9. THE DISCOVERY OF A MOLECULAR CAVITY IN THE NORMA NEAR ARM ASSOCIATED WITH H.E.S.S {gamma}-RAY SOURCE LOCATED IN THE DIRECTION OF WESTERLUND 1

    SciTech Connect

    Luna, Abraham; Mayya, Y. D.; Carrasco, Luis; Bronfman, Leonardo

    2010-04-10

    We report on the discovery of a molecular cavity in the Norma near arm in the general direction of Westerlund 1 (Wd1), but not associated with it. The cavity has a mean radial velocity of -91.5 km s{sup -1}, which differs by as much as {approx}40 km s{sup -1} from the mean radial velocity of the Wd1 stars. The cavity is surrounded by a fragmented molecular shell of an outer diameter of about 100 pc and 10{sup 6} M {sub sun}, which is expanding at velocities of 6 to 8 km s{sup -1}. The amount of kinetic energy involved in the expanding shell is {approx}10{sup 51} erg. Inside this cavity, the atomic H I gas surface density is also the lowest. Structure of the extended Very High Energetic {gamma}-ray emission, recently reported by the H.E.S.S. collaboration, coincides with the cavity. The observed morphology suggests that the inner wall of the molecular shell is the zone of the {gamma}-ray emission, and not the dense gas surrounding massive stars of Wd1 as had been speculated by the H.E.S.S. collaboration. A likely candidate responsible for creating the observed cavity and the {gamma}-ray emission is the pulsar PSR J1648 - 4611.

  10. IM Normae: A Second T Pyx? (Abstract)

    NASA Astrophysics Data System (ADS)

    Patterson, J.; Monard, B.; Warhurst, P.; Myers, G.

    2015-12-01

    (Abstract only) T Pyx is the Galaxy's most famous recurrent nova, erupting to magnitude 6 about every 20 years. For nova hunters and variable-star observers generally, it should be quite easy to discover stars with similar properties. There are probably half a million CVs out to the distance of T Pyx, and most have an underlying structure similar to that of T Pyx: low-mass secondary, fairly massive white dwarf, short orbital period. But of these half million stars, there is no second T Pyx. The star is unique in another way: its orbital period is increasing on a timescale of 300,000 years. Like the proverbial bat out of hell. A 2002 nova eruption nominated a second star for this elite club: IM Nor, a short-orbital-period (2.5 hours) star which previously erupted in 1920. We began a program of time-series photometry to track the shallow eclipses—to test for orbital period change, the other signature of T Pyx resemblance. By 2015 we found this effect: Porb increases on a timescale of 2 million years. Thus, the two stars appear to be blowing themselves apart on a timescale of roughly a million years. This could explain why the stars are so rare: because they are rapidly self-immolating. And that could happen because the classical-nova outburst overwhelms the low-mass secondaries that live in short-period CVs—leading to unstable mass transfer which quickly evaporates the secondary. This implies that all short-Porb classical novae should be "recurrent" (erupting on a timescale of decades). Greater attention to CP Pup (1942), RW UMi (1956), GQ Mus (1983), and V Per (1887) is definitely warranted.

  11. Biophysical processes in fibrosis. Comment on: "Towards a unified approach in the modeling of fibrosis: A review with research perspectives" by Carlo Bianca and Martine Ben Amar

    NASA Astrophysics Data System (ADS)

    La Porta, Caterina A. M.; Zapperi, Stefano

    2016-07-01

    The process of inflammation tries to protect the body after an injury due to biological causes such as the presence of pathogens or chemicals, or to physical processes such as burns or cuts. The biological rationale for this process has the main goal of eliminating the cause of the injury and then repairing the damaged tissues. We can distinguish two kinds of inflammations: acute and chronic. In acute inflammation, a series of events involving the local vascular systems, the immune system and various cells within the injured tissue work together to eradicate the harmful stimuli. If the inflammation does not resolve the problem, it can evolve into a chronic inflammation, where the type of cells involved changes and there is a simultaneous destruction and healing of the tissue from the inflammation process.

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

    PubMed

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

    2013-08-01

    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.

  13. Brightness variations of the FUor-type eruptive star V346 Normae

    NASA Astrophysics Data System (ADS)

    Kóspál, Á.; Ábrahám, P.; Westhues, Ch.; Haas, M.

    2017-01-01

    Decades after the beginning of its FU Orionis-type outburst, V346 Nor unexpectedly underwent a fading event of ΔK = 4.6 mag around 2010. We obtained near-infrared observations and re-analyzed data from the VISTA/VVV survey to outline the brightness evolution. In our VLT/NaCO images, we discovered a halo of scattered light around V346 Nor with a size of about 0".04 (30 au). The VISTA data outlined a well-defined minimum in the light curve in late 2010/early 2011, and tentatively revealed a small-amplitude periodic modulation of 58 days. Our latest data points from 2016 demonstrate that the source is still brightening but has not yet reached the 2008 level. We used a simple accretion disk model with varying accretion rate and line-of-sight extinction to reproduce the observed near-infrared magnitudes and colors. We found that the flux changes of V346 Nor before 2008 were caused by a correlated change of extinction and accretion rate, while the minimum around 2010 was mostly due to decreasing accretion. The source reached a highest accretion rate of ≈ 10-4M⊙ yr-1 in 1992. A combination of accretion and extinction changes has been invoked in the literature to interpret the flux variations of certain embedded young eruptive stars. Based on observations collected at the European Organisation for Astronomical Research in the Southern Hemisphere under ESO programmes 71.C-0526(A), 179.B-2002, and 381.C-0241(A).

  14. Discovery of a new bona fide luminous blue variable in Norma

    NASA Astrophysics Data System (ADS)

    Gvaramadze, V. V.; Kniazev, A. Y.; Berdnikov, L. N.

    2015-12-01

    We report the results of optical spectroscopy of the candidate evolved massive star MN44 revealed via detection of a circular shell with the Spitzer Space Telescope. First spectra taken in 2009 May-June showed the Balmer lines in emission as well as numerous emission lines of iron, which is typical of luminous blue variables (LBVs) near the visual maximum. New observations carried out in 2015 May-September detected significant changes in the spectrum, indicating that the star became hotter. We found that these changes are accompanied by significant brightness variability of MN44. In particular, the Ic-band brightness decreased by ≈ 1.6 mag during the last six years and after reaching its minimum in 2015 June has started to increase. Using archival data, we also found that the Ic-band brightness increased by ≈3 mag in ≈30 yr preceding our observations. MN44 therefore represents the 17th known example of the Galactic bona fide LBVs. We detected a nitrogen-rich knot to the north-west of the star, which might represent an interstellar cloudlet interacting with the circumstellar shell. We discuss a possible association between MN44 and the INTEGRAL transient source of hard X-ray emission IGR J16327-4940, implying that MN44 might be either a colliding-wind binary or a high-mass X-ray binary.

  15. La Lengua Escrita como Norma Fonetica (The Written Language as Phonetic Norm)

    ERIC Educational Resources Information Center

    Diaz-Plaja, Guillermo

    1977-01-01

    A collectivity can be defined by the verbal instrument which binds it together. By extension of this thought of Marshall MacLuhan, the importance of the written language as normative for the uniformity, universality and preservation of the phonetic system of the language is discussed. (Text is in Spanish.) (AMH)

  16. The slow decline of the Galactic recurrent novae T Pyxidis, IM Normae, and CI Aquilae

    NASA Astrophysics Data System (ADS)

    Caleo, Andrea; Shore, Steven N.

    2015-05-01

    A distinguishing trait of the three known Galactic recurrent novae with the shortest orbital periods, T Pyx, IM Nor, and CI Aql, is that their optical decline time-scales are significantly longer than those of the other recurrent systems. On the other hand, some estimates of the mass of the ejecta, the velocity of the ejecta, and the duration of the soft X-rays emission of these systems are of the order of those of the other recurrent systems and the fast classical novae. We put forth a tentative explanation of this phenomenon. We propose that in these systems part of the material transferred from the companion during the first few days of the eruption remains within the Roche lobe of the white dwarf, preventing the radiation from ionizing the ejecta of the system and increasing the optical decline time-scale. We explain why this phenomenon is more likely in systems with a high mass transfer rate and a short orbital period. Finally, we present a schematic model that shows that the material transferred from the companion is sufficient to absorb the radiation from the white dwarf in these systems, ultimately supporting this scenario as quantitatively realistic.

  17. Asymptotic methods as multiscale methods for fibrosis. Comment on "Towards a unified approach in the modeling of fibrosis: A review with research perspectives" by Martine Ben Amar and Carlo Bianca

    NASA Astrophysics Data System (ADS)

    Dogbe, Christian

    2016-07-01

    The definition of multiscale models for biological system is the new challenge of the last and this century. In particular the construction of methods which allow to link the dynamics described at mesoscopic scale with the dynamics at macroscopic scale has been performed in the last century in the kinetic theory of gas [1-5] and it is of great interest also in this century for what concern the applications [6-9]. The most famous method for deriving the macroscopic description from kinetic equation is based on the definition of the parabolic/diffusive and hyperbolic scalings and subsequently on the so-called small Knudsen number (proportional to the mean free path) limit.

  18. 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 Central

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

    2014-01-01

    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

  19. "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

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

    2015-01-01

    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.

  20. Cells distribution in the modeling of fibrosis. Comment on "Towards a unified approach in the modeling of fibrosis: A review with research perspectives" by Martine Ben Amar and Carlo Bianca

    NASA Astrophysics Data System (ADS)

    Abdel-Aty, Mahmoud

    2016-07-01

    The modeling of a complex system requires the analysis of all microscopic constituents and in particular of their interactions [1]. The interest in this research field has increased considering also recent developments in the information sciences. However interaction among scholars working in various fields of the applied sciences can be considered the true motor for the definition of a general framework for the analysis of complex systems. In particular biological systems constitute the platform where many scientists have decided to collaborate in order to gain a global description of the system. Among others, cancer-immune system competition (see [2] and the review papers [3,4]) has attracted much attention.

  1. Multiscale modeling of fibrosis - What's next? Reply to Comments on "Towards a unified approach in the modeling of fibrosis: A review with research perspective" by Martine Ben Amar and Carlo Bianca

    NASA Astrophysics Data System (ADS)

    Ben Amar, Martine; Bianca, Carlo

    2016-07-01

    Following the commentary articles on the review [1], this reply aims at providing further issues on the possibility to develop a multiscale approach for the modeling of physiological and pathological fibrosis. Specifically this manuscript is devoted to the capability to employ new theoretical frameworks of the biomathematics, biophysics and bioinformatics for the derivation of a specific multiscale model including the possibility to validate the related model with experimental and empirical data. In particular comments on the mathematical control, frameworks with fractional-order, time delay, asymptotic methods, transport of drugs open the door to future investigations.

  2. The transport of drug in fibrosis. Comment on "Towards a unified approach in the modeling of fibrosis: A review with research perspectives" by Martine Ben Amar and Carlo Bianca

    NASA Astrophysics Data System (ADS)

    Ivancevic, Vladimir

    2016-07-01

    The topic of the review article [1] is the derivation of a multiscale paradigm for the modeling of fibrosis. Firstly, the biological process of the physiological and pathological fibrosis including therapeutical actions is reviewed. Fibrosis can be a consequence of tissue damage, infections and autoimmune diseases, foreign material, tumors. Some questions regarding the pathogenesis, progression and possible regression of fibrosis are lacking. At each scale of observation, different theoretical tools coming from computational, mathematical and physical biology have been proposed. However a complete framework that takes into account the different mechanisms occurring at different scales is still missing. Therefore with the main aim to define a multiscale approach for the modeling of fibrosis, the authors of [1] have presented different top-down and bottom-up approaches that have been developed in the literature. Specifically, their description refers to models for fibrosis diseases based on ordinary and partial differential equation, agents [2], thermostatted kinetic theory [3-5], coarse-grained structures [6-8] and constitutive laws for fibrous collagen networks [9]. A critical analysis has been addressed for all frameworks discussed in the paper. Open problems and future research directions referring to both biological and modeling insight of fibrosis are presented. The paper concludes with the ambitious aim of a multiscale model.

  3. Control and optimization in the modeling of fibrosis. Comment on "Towards a unified approach in the modeling of fibrosis: A review with research perspectives" by Martine Ben Amar and Carlo Bianca

    NASA Astrophysics Data System (ADS)

    Sivasundaram, Seenith

    2016-07-01

    The review paper [1] is devoted to the survey of different structures that have been developed for the modeling and analysis of various types of fibrosis. Biomathematics, bioinformatics, biomechanics and biophysics modeling have been treated by means of a brief description of the different models developed. The review is impressive and clearly written, addressed to a reader interested not only in the theoretical modeling but also in the biological description. The models have been described without recurring to technical statements or mathematical equations thus allowing the non-specialist reader to understand what framework is more suitable at a certain observation scale. The review [1] concludes with the possibility to develop a multiscale approach considering also the definition of a therapeutical strategy for pathological fibrosis. In particular the control and optimization of therapeutics action is an important issue and this article aims at commenting on this topic.

  4. Validation of multi-scale models for fibrosis. Comment on "Towards a unified approach in the modeling of fibrosis: A review with research perspectives" by M. Ben Amar and C. Bianca

    NASA Astrophysics Data System (ADS)

    Eftimie, Raluca

    2016-07-01

    Over the last few decades, medical research has started to emphasise the need for an integrative approach that could unravel the progression of various diseases across different spatial and temporal scales, and the links between the different phases of disease progression [2,6]. Among these diseases, the fibroproliferative disorders are a leading cause of morbidity and mortality by affecting tissues and organ systems [11], and thus investigating and understanding the common mechanisms behind fibrogenesis might lead to the development of new therapies [6,9].

  5. Effect of ether inhalation by adrenalectomized pregnant rats on the adrenal corticosterone concentration in norma, decapitated, and encephalectomized fetuses.

    PubMed

    Negellen-Perchellet, E; Cohen, A

    1975-01-01

    The influence of decapitation or encephalectomy (total removal of the brain leaving the pituitary in place) on the adrenal corticosterone concentration of the 20-day-old rat fetus has been studied in normal pregnant rats, in adrenalectomized pregnant rats, and in adrenalectomized pregnant rats subjected to the stress conditions of inhalation of ether for 40 min. Decapitation or encephalectomy of the fetus always results in a drop in adrenal corticosterone concentration within 4 h which is prevented in 15 min by injecting 3.2 mU of hog ACTH into the decapitated fetus. In mothers adrenalectomized in order to avoid a negative feedback reaction of maternal corticosteroids on the fetal pituitary-adrenal system, ether inhalation causes an important rise in adrenal corticosterone concentration in normal fetuses but not in decapitated or encephalectomized ones. Thus ether, which crosses the placental barrier, is a stressor agent for the fetal rat.

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

    ERIC Educational Resources Information Center

    Policarpo, Alcibiades

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

  7. Development of Novel Noninvasive Methods of Stress Assessment in Baleen Whales

    DTIC Science & Technology

    2013-09-30

    physiological stress levels of free-swimming cetaceans ( Amaral 2010, ONR 2010, Hunt et al. 2013a). We have previously demonstrated that respiratory vapor...acoustic-related disturbance. REFERENCES Amaral RS. 2010. Use of alternative matrices to monitor steroid hormones in aquatic mammals: a

  8. Implications for Child Bilingual Acquisition, Optionality and Transfer

    ERIC Educational Resources Information Center

    Serratrice, Ludovica

    2014-01-01

    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…

  9. What Is a Rule of Grammar?

    ERIC Educational Resources Information Center

    Lardiere, Donna

    2014-01-01

    This article offers commentary on the Multiple Grammars (MG) language acquisition theory proposed by Luiz Amaral and Tom Roeper in this issue. It argues that more precise definitions are needed for the terms "rule," "simple," and "productive." Topics discussed include Amaral and Roeper's verb second (V2) rule,…

  10. Las normas de desempeno matematico desde el preescolar hasta el segundo grado (Mathematics Standards for Pre-Kindergarten through Grade 2). ERIC Digest.

    ERIC Educational Resources Information Center

    Richardson, Kathy

    The National Council of Teachers of Mathematics recently published "Principles and Standards for School Mathematics." For the first time, these new standards include pre-kindergarten standards, while outlining the mathematics that children should learn as they progress through school. The standards present a broad view of what…

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

    ERIC Educational Resources Information Center

    Lynch, Beverly P., Ed.

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

  12. Quantifying Friction Effects of Molybdenum Disulfide, Tungsten Disulfide, Hexagonal Boron Nitride, and Lubalox as Bullet Coating

    DTIC Science & Technology

    2012-07-30

    also claims that these coatings eliminate copper fouling of the barrel. The Swedish ammunition company Norma Precision advertises friction reduction...Lubricant,” US Patent 6036996. [7] Norma , 2011. “ Norma Diamond Line.” http://www.norma.cc/en/Products/Our-Brands/ Norma - Diamond-Line/ Accessed

  13. 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)

    Nunes Amaral, Luis A.

    2002-03-01

    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. Barthélémy, L. A. N. Amaral, Phys. Rev. Lett. 82, 3180-3183 (1999). 2. L. A. N. Amaral, A. Scala, M. Barthélémy, 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. Åberg, 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).

  14. Towards adaptive kinetic-fluid simulations of low-temperature plasmas

    NASA Astrophysics Data System (ADS)

    Kolobov, Vladimir

    2013-09-01

    The emergence of new types of gaseous electronics in multi-phase systems calls for computational tools with adaptive kinetic-fluid simulation capabilities. We will present an Adaptive Mesh and Algorithm Refinement (AMAR) methodology for multi-scale simulations of gas flows and discuss current efforts towards extending this methodology for weakly ionized plasmas. The AMAR method combines Adaptive Mesh Refinement (AMR) with automatic selection of kinetic or fluid solvers in different parts of computational domains. This AMAR methodology was implemented in our Unified Flow Solver (UFS) for mixed rarefied and continuum flows. UFS uses discrete velocity method for solving Boltzmann kinetic equation under rarefied flow conditions coupled to fluid (Navier-Stokes) solvers for continuum flow regimes. The main challenge of extending AMAR to plasmas comes from the distinction of electron and atom mass. We will present multi-fluid, two-temperature plasma models with AMR capabilities for simulations of glow, corona, and streamer discharges. We will briefly discuss specifics of electron kinetics in collisional plasmas, and deterministic methods of solving kinetic equations for different electron groups. Kinetic solvers with Adaptive Mesh in Phase Space (AMPS) will be introduced to solve Boltzmann equation for electrons in the presence of electric fields, elastic and inelastic collisions with atoms. These kinetic and fluid models are currently being incorporated into AMAR methodology for multi-scale simulations of low-temperature plasmas in multi-phase systems. Supported by AFOSR, NASA, and DoE

  15. Forecasting ARIMA models for atmospheric vineyard pathogens in Galicia and Northern Portugal: Botrytis cinerea spores.

    PubMed

    Fernández-González, María; Rodríguez-Rajo, Francisco Javier; Jato, Victoria; Aira, María Jesús; Ribeiro, Helena; Oliveira, Manuela; Abreu, Iida

    2012-01-01

    Botrytis cinerea is the cause of the most common disease in the Galician and Portuguese vineyards. Knowledge of the spore levels in the atmosphere of vineyards is a tool for forecasting models of the concentration of spores in order to adjust the phytosanitary treatments to real risk infection periods. The presented study was conducted in two vineyards, one located in Cenlle (Spain) and other in Amares (Portugal), from 2005-2007. A volumetric trap, model Lanzoni VPPS-2000, was used for the aerobiological study. Phenological observations were conducted on 20 vines of three grape varieties in Cenlle (Treixadura, Godello and Loureira) and in Amares (Trajadura, Loureiro and Pedernã), by using the BBCH scale. The highest total spore concentrations during the grapevine cycle were recorded in 2007 in both locations (Cenlle:16,145 spores; Amares:1,858 spores), and the lowest, in 2005 in Cenlle (1,700 spores) and in Amares (800 spores) in 2006. In Cenlle, the best adjusted model was an ARIMA (0,2,2), including the relative humidity four days earlier, while in Amares there was an ARIMA (1,2,3), considering the relative humidity three days earlier and rainfall two days earlier. The t-test showed no significant difference between observed and predicted data by the model.

  16. Todo Alumno: Un Manual de Recursos de PEER sobre Educacion Basada en Normas y Alumnos con Discapacidades (Every Single Student: A PEER Resource Manual on Standards-Based Education and Students with Disabilities).

    ERIC Educational Resources Information Center

    Landau, Julia K., Ed.; Romano, Carolyn A., Ed.; Vohs, Janet R., Ed.

    This manual in Spanish covers thirteen different topics relevant to the education of students with disabilities in the era of educational reform and standards-based education. Sections include: (1) "Raising Standards of Learning: Standards-Based Education and Students with Disabilities" (Janet R. Vohs, Julia K. Landau, and Carolyn…

  17. [Computation of the K+, Na+ and Cl- fluxes through plasma membrane of animal cell with Na+/K+ pump, NKCC, NC cotransporters, and ionic channels with and without non-Goldman rectification in K+ channels. Norma and apoptosis].

    PubMed

    Rubashkin, A A; Iurinskaia, V E; Vereninov, A A

    2010-01-01

    The balance of K+, Na+ and Cl- fluxes through cell membrane with the Na+/K+ pump, ion channels and NKCC and NC cotransporters is considered. It is shown that all unidirectional K+, Na+ and Cl- fluxes through cell membrane, permeability coefficients of ion channels and membrane potential can be computed for balanced ion distribution between cell and the medium if K+, Na+ and Cl- concentration in cell water and three fluxes are known: total Cl- flux, total K+ influx and ouabain-inhibitable "pump" component of the K+ influx. Changes in the mortovalent ion balance in lymphoid cells U937 induced to apoptosis by 1 microM staurosporine are analyzed as an example. It is found that the apoptotic shift in ion and water balance in studied cells is caused by a decrease in the pump activity which is accompanied by a decrease in the integral permeability of Na+ channels without significant increase in K+ and Cl- channel permeabilities. Computation shows that only a small part of the total fluxes of K+, Na+ and Cl- accounts for the fluxes via NKCC and NC cotransporters. Therefore, cotransport fluxes can not be studied using inhibitors.

  18. Head Start Program Performance Standards on Services for Children with Disabilities (45-CFR 1308) [and] Normas de Ejecucion del Programa Head Start Sobre Servicios para Ninos con Discapacidades (45-CFR 1308).

    ERIC Educational Resources Information Center

    Administration for Children, Youth, and Families (DHHS), Washington, DC. Head Start Bureau.

    This document consolidates, clarifies, and updates federal regulations on Head Start services for children with disabilities. The regulations are designed to complement the Head Start Program Performance Standards governing services to all enrolled children. Specifically, these regulations require Head Start programs to: (1) design comprehensive…

  19. Informe: Agua potable - la EPA necesita adoptar medidas adicionales para garantizar que los pequeños sistemas de agua comunitarios señalados como graves infractores logren cumplir con las normas

    EPA Pesticide Factsheets

    Informe #16-P-0108, 22 de Marzo de 2016. La EPA puede proteger mejor al público del agua potable contaminada, lo que incluye a casi 200,000 personas en Puerto Rico que todavía carecen de agua potable segura.

  20. Normas finales de desempeño para fuentes nuevas y revisión de tecnología y riesgos del sector de refinería de petróleo-resumen de cambios

    EPA Pesticide Factsheets

    La Agencia de Protección Ambiental (EPA, por sus siglas en inglés) emitió un reglamento final que mejorará significativamente la calidad del aire en los vecindarios cercanos a las refinerías de petróleo mediante un control más exhaustivo de las emisiones a

  1. 3D Continuum-Particle Simulations for Multiscale Hydrodynamics

    NASA Astrophysics Data System (ADS)

    Wijesinghe, Sanith; Hornung, Richard; Garcia, Alejandro; Hadjiconstantinou, Nicolas

    2001-06-01

    An adaptive mesh and algorithmic refinement (AMAR) scheme to model multi-scale, continuum-particle hydrodynamic flows is presented. AMAR ensures the particle description is applied exclusively in regions with high flow gradients and discontinous material interfaces, i.e. regions where the continuum flow assumptions are typically invalid. Direct Simulation Monte Carlo (DSMC) is used to model the particle regions on the finest grid of the adaptive hierarchy. The continuum flow is modelled using the compressible flow Euler equations and is solved using a second order Godunov scheme. Coupling is achieved by conservation of fluxes across the continuum-particle grid boundaries. The AMAR data structures are supported by a C++ object oriented framework (Structured Adaptive Mesh Refinement Application Infrastructure - SAMRAI) which allows for efficient parallel implementation. The scheme also extends to simulations of gas mixtures. Results for test cases are compared with theory and experiment.

  2. Coupling Kinetic and Hydrodynamic Models for Simulations of Gas Flows and Weakly Ionized Plasmas

    NASA Astrophysics Data System (ADS)

    Kolobov, V. I.; Arslanbekov, R. R.

    2011-10-01

    This paper presents adaptive kinetic/fluid models for simulations of gases and weakly ionized plasmas. We first describe a Unified Flow Solver (UFS), which combines Adaptive Mesh Refinement with automatic selection of kinetic or hydrodynamic models for different parts of flows. This Adaptive Mesh and Algorithm Refinement (AMAR) technique limits expensive atomistic-scale solutions only to the regions where they are needed. We present examples of plasma simulations with fluid models and describe kinetic solvers for electrons which are currently being incorporated into AMAR techniques for plasma simulations.

  3. 75 FR 66064 - Availability of Seats for Olympic Coast National Marine Sanctuary Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-27

    .... DATES: Applications are due by November 19, 2010. ADDRESSES: Application kits may be obtained from Norma... 98362 ( norma.klein@noaa.gov ). Completed applications should be sent via mail or e-mail to the...

  4. 77 FR 16813 - Availability of Seat for Olympic Coast National Marine Sanctuary Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-22

    .... ADDRESSES: Application kits may be obtained from Norma Klein, Olympic Coast National Marine Sanctuary, 115 East Railroad Ave., Suite 301, Port Angeles, WA 98362 ( norma.klein@noaa.gov ). Completed...

  5. 77 FR 50497 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-21

    ..., DC 20503. FOR FURTHER INFORMATION CONTACT: Norma Abdul-Malik, Environmental Protection Agency, 1200... address: abdul-malik.norma@epa.gov . SUPPLEMENTARY INFORMATION: EPA has submitted the following ICR to...

  6. 75 FR 53696 - Ocean Transportation Intermediary License Applicants

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-01

    ... (Qualifying Individual), Torri Hideyuki, President. Application Type: Add NVO Service. Norma's Cargo Solutions, LLC (NVO & OFF), 5665 SW 8th Street, Miami, FL 33134. Officer: Norma A. Pineiro, Managing...

  7. Towards adaptive kinetic-fluid simulations of weakly ionized plasmas

    NASA Astrophysics Data System (ADS)

    Kolobov, V. I.; Arslanbekov, R. R.

    2012-02-01

    This paper describes an Adaptive Mesh and Algorithm Refinement (AMAR) methodology for multi-scale simulations of gas flows and the challenges associated with extending this methodology for simulations of weakly ionized plasmas. The AMAR method combines Adaptive Mesh Refinement (AMR) with automatic selection of kinetic or continuum solvers in different parts of computational domains. We first review the discrete velocity method for solving Boltzmann and Wang Chang-Uhlenbeck kinetic equations for rarefied gases. Then, peculiarities of AMR implementation with octree Cartesian mesh are discussed. A Unified Flow Solver (UFS) uses AMAR method with adaptive Cartesian mesh to dynamically introduce kinetic patches for multi-scale simulations of gas flows. We describe fluid plasma models with AMR capabilities and illustrate how physical models affect simulation results for gas discharges, especially in the areas where electron kinetics plays an important role. We introduce Eulerian solvers for plasma kinetic equations and illustrate the concept of adaptive mesh in velocity space. Specifics of electron kinetics in collisional plasmas are described focusing on deterministic methods of solving kinetic equations for electrons under different conditions. We illustrate the appearance of distinct groups of electrons in the cathode region of DC discharges and discuss the physical models appropriate for each group. These kinetic models are currently being incorporated into AMAR methodology for multi-scale plasma simulations.

  8. Three Dimensional Hybrid Continuum-Atomistic Simulations for Multiscale Hydrodynamics

    NASA Astrophysics Data System (ADS)

    Wijesinghe, Sanith; Hornung, Richard; Garcia, Alejandro; Hadjiconstantinou, Nicolas

    2002-11-01

    An adaptive mesh and algorithmic refinement (AMAR) scheme to model multi-scale, compressible continuum-atomistic hydrodynamics is presented. The AMAR technique applies the atomistic description as the finest level of refinement in regions where the continuum description is expected to fail, such as in regions of high flow gradients and discontinous material interfaces. In the current implementation the atomistic description is provided by the direct simulation Monte Carlo (DSMC). The continuum flow is modeled using the compressible flow Euler equations and is solved using a second order Godunov scheme. Coupling is achieved by conservation of fluxes across the continuum-atomistic grid boundaries. The AMAR data structures are supported by a C++ object oriented framework (Structured Adaptive Mesh Refinement Application Infrastructure - SAMRAI) which allows for efficient parallel implementation. Current work is focused on extending AMAR to simulations of gas mixtures. This work was performed under the auspices of the U.S. Department of Energy by University of California Lawrence Livermore National Laboratory under contract number W-7405-Eng-48.

  9. Singularities and Spatial Fluctuations in Submonolayer Epitaxy

    NASA Astrophysics Data System (ADS)

    Vvedensky, D. D.; Ratsch, C.; Gibou, F.; Vardavas, R.

    2003-05-01

    A Comment on the Letter by

    Jacques G. Amar, Mihail N. Popescu, and Fereydoon Family, Phys. Rev. Lett.PRLTAO0031-9007 86, 3092 (2001)
    . The authors of the Letter offer a Reply.

  10. 77 FR 74266 - In the Matter of the Designation of Ahmed el Tilemsi, Also Known as Ahmed Tilemsi, Also Known as...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-13

    ... Matter of the Designation of Ahmed el Tilemsi, Also Known as Ahmed Tilemsi, Also Known as Abderrahmane Ould el Amar, Also Known as Abderrahmane Toudji, Also Known as Abderrahmane Ouid Ameur, Also Known as... 13284 of January 23, 2003, I hereby determine that the individual known as Ahmed el Tilemsi, also...

  11. Register of new fruit and nut cultivars list 48 - Blackberry

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The Register of New Fruit and Nut Cultivars is a listing of cultivars that have been released from around the world. List 48 reports on the releases for 24 crops from. The blackberry section gives a description of the origin, and the fruit and plant characteristics for the following cultivars: Amar...

  12. Yeast Studies Lead to a New DNA-Based Model for Research on Development | Poster

    Cancer.gov

    A paper from Amar J. S. Klar, Ph.D., with the RNA Biology Laboratory in NCI’s Center for Cancer Research, has identified a model for DNA research that explains the congenital disorder of mirror hand movements in humans. A mirror movement is when an intentional movement on one side of the body is mirrored by an involuntary movement on the other.

  13. Learning English, Learning Science

    ERIC Educational Resources Information Center

    Nelson, Virginia

    2010-01-01

    Using science notebooks effectively in the classroom can encourage students who are learning English to keep up and keep interested. English language proficiency might head the list of content areas that schools can teach properly and effectively through science. Amaral, Garrison, and Klentschy (2002) reported that a successful inquiry-based…

  14. Multiple Grammars and MOGUL

    ERIC Educational Resources Information Center

    Truscott, John

    2014-01-01

    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…

  15. Multiple Grammars: Old Wine in Old Bottles

    ERIC Educational Resources Information Center

    Sorace, Antonella

    2014-01-01

    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…

  16. The Multiple Grammars Theory and the Nature of L2 Grammars

    ERIC Educational Resources Information Center

    Liceras, Juana M.

    2014-01-01

    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…

  17. Final Report: Fourth Peer Review of the CMAQ Model

    EPA Science Inventory

    The CMAQ Model External Peer Review Panel conducted a two and a half day review view on June 27, 28, and 29, 2011. This report summarizes its findings, and follows other reviews conducted in 2004, 2005, and 2006 [Amar et al., 2004; 2005 and 2007].

  18. 76 FR 46898 - Quarterly Publication of Individuals, Who Have Chosen To Expatriate, as Required by Section 6039G

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-03

    ... BERTHOLD DOROTHY ISABELLE BESSMERT DANIEL BIASUCCI JOHN W BJERTNES MARK ERIK BLACK CRAIG GRANT BODMER... HEURTLEY HANIBAL AMAR T HARTE NEIL D HARTWICH-KNIGHT KAREN HASKELL PRESTON HAMPTON HASTRY JOHN JOSEPH... ROBERT JOSEPH ALLEN PAVLOWSKI DANNY PEACOCK ESTHER CHRISTINE LEHAR PECOT III CHARLES MATTHEW PENMAN...

  19. 76 FR 70711 - Senior Executive Service; Performance Review Board

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-15

    ..., JEFFREY M AMARAL, DAVID M ANDERSON, CYNTHIA V AOKI, STEVEN NMN ARANGO III, JOSEPH NMN ASCANIO, XAVIER NMN..., CAROL J BEAMON, JOSEPH A BEARD, JEANNE M BEARD, SUSAN F BEAUSOLEIL, GEOFFREY L BEKKEDAHL, LARRY N BELL, MELODY C BIENIAWSKI, ANDREW J BIERBOWER, WILLIAM J BISHOP, CLARENCE T BISHOP, TRACEY L BLACK, STEVEN...

  20. Pollen Grain Size, Density, and Settling Velocity for Palmer Amaranth (Amaranthus palmeri)

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Palmer amaranth has known resistance to several herbicides, including glyphosate, and there is concern that the resistance traits are being transferred between spatially segregated populations via pollen movement. The objective of this study was to describe the physical properties of Palmer amarant...

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

    ERIC Educational Resources Information Center

    Unsworth, Sharon

    2014-01-01

    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…

  2. Constraining Multiple Grammars

    ERIC Educational Resources Information Center

    Hopp, Holger

    2014-01-01

    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…

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

    ERIC Educational Resources Information Center

    Amaral, Luiz; Roeper, Tom

    2014-01-01

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

  4. Complexity and Conflicting Grammars in Language Acquisition

    ERIC Educational Resources Information Center

    Westergaard, Marit

    2014-01-01

    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…

  5. Index of Selected Publications Through December 1983,

    DTIC Science & Technology

    1984-03-01

    retention, manning, rotation, and Cos 1080 pay. Levine, Daniel 3.; Hibbe, Norma J.; Roane, Peter; and Stoloff, Peter H., Factors Underlying Recent ME 1096...target- Repers ing higher reenlistment bonuses to ratings with high training costs. a I Horowits, Stanley, A.; tibbs, Norma J.; Bagby, S-mmmey Repes...first-term Naval enlisted men. CC170 CXC 180 Forst, Brian E. and O’Neill, David N., The Deter- Augusta, Joseph N. and Hibbs, Norma J., Estimating

  6. West Europe Report.

    DTIC Science & Technology

    1987-04-01

    Article by Antonio Pinto Leite: "Exclusive Norma -SEMANARIO Poll Shows Gains for the PSD on the Right, None for the PS on the Left" first...were the 595 persons polled by Norma ?. For whom did they vote in the 1985 election? Here is the political profile of these poll subjects; it demon...p = 50 percent. 8. Institute in charge: The survey was conducted by Norma , Ltd, Portuguese member of Gallup International. [The Leaders of the

  7. Perturbative stability of catenoidal soap films

    NASA Astrophysics Data System (ADS)

    Jana, Soumya; Kar, Sayan

    2013-09-01

    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.

  8. Nutriendo la Promesa: Materiales Para la Aplicacion de las Normas de Ejecucion del Programa Head Start. Guia Para la Utilizacion de los Materiales [y] Transparencias (Nurturing the Promise: Set of Training Materials on the Head Start Program Performance Standards. User's Guide [and] Set of Transparencies).

    ERIC Educational Resources Information Center

    Educational Services, Inc., Washington, DC.

    Since 1975, the Head Start Program Performance Standards have defined the services that local programs are required to provide to enrolled children and families. With revisions effective in 1998, the Program Performance Standards translate the Head Start vision into quality practices implemented at the local level. This document is comprised of a…

  9. Un gran proyecto en crisis: el estudio coordinado de la norma linguistica culta de las principales ciudades de Iberoamerica y de la peninsula Iberica (A Great Project in Crisis: the Coordinated Study of the Educated Linguistic Norm of the Principal Cities of Latin America and of the Iberian Peninsula)

    ERIC Educational Resources Information Center

    Criado de Val, Manuel

    1975-01-01

    The controversy holding back the project is what approach should be used in data collecting, controlled interviews or spontaneous recordings. The author favors the latter. To be scientific, the analysis of the data should be psycholinguistic rather than stylistic. (Text is in Spanish.) (TL)

  10. 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

    Council for Early Childhood Professional Recognition, Washington, DC.

    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…

  11. 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

    Council for Early Childhood Professional Recognition, Washington, DC.

    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.…

  12. Follow-on Simulator Comparative Evaluation.

    DTIC Science & Technology

    1979-05-01

    systems afforded the clari ty and resolution necessary to recognize and identify objects at norma l slant ranges. (3) Norma l techniques and...lacked norma l atnios phc ’r ic d i f f u s i o n of li ght. Also , al l l ight points were of s i m i l a r s ize and intensit y and did not vary...This permits simul taneous program modifications during norma l system operation . A high-speed paper tape punch and r eader setup is used to input or

  13. Adaptive Mesh and Algorithm Refinement Using Direct Simulation Monte Carlo

    NASA Astrophysics Data System (ADS)

    Garcia, Alejandro L.; Bell, John B.; Crutchfield, William Y.; Alder, Berni J.

    1999-09-01

    Adaptive mesh and algorithm refinement (AMAR) embeds a particle method within a continuum method at the finest level of an adaptive mesh refinement (AMR) hierarchy. The coupling between the particle region and the overlaying continuum grid is algorithmically equivalent to that between the fine and coarse levels of AMR. Direct simulation Monte Carlo (DSMC) is used as the particle algorithm embedded within a Godunov-type compressible Navier-Stokes solver. Several examples are presented and compared with purely continuum calculations.

  14. Effects of shadowing and steering in oblique incidence epitaxial growth

    NASA Astrophysics Data System (ADS)

    Shim, Yunsic

    2009-03-01

    Recently the fabrication of novel nanostructures by oblique deposition has drawn much attention due to their potential application in electronic and mechanical devices as well as the interesting morphologies observed in various experiments, such as nanorods, nanocolumns, and nanohelicoids. Unlike self-organization by misfit strain in heteroepitaxial growth, oblique deposition provides a relatively direct way of controlling surface structures of growing films. Recent experiments indicate that oblique incidence deposition can significantly alter materials properties such as surface roughness, magnetic anisotropy, optical transmittance, and porosity. After a review of these experimental results, we first show that a series of morphological transitions observed in oblique incidence Cu/Cu(100) growth near room temperature can be explained primarily by geometrical shadowing effects [1]. We then discuss the modifying effects of steering due to short-range and long-range attraction [2] as well as of substrate rotation on the surface morphology. Finally, we present the results of recent multiscale simulations of Cu/Cu(100) growth at lower temperature (T = 160 - 200 K) [3] as well as parallel accelerated dynamics and molecular dynamics simulations at very low temperature [4]. Based on these simulations we have been able to explain a number of recent intriguing but previously unexplained experimental results including the strong dependence of the surface morphology and roughening behavior on temperature as well as the development of compressive strain in metal thin film growth. [4pt] [1] Y. Shim and J. G. Amar, Phys. Rev. Lett. 98, 046103 (2007).[0pt] [2] Y. Shim, V. Borovikov and J. G. Amar, Phys. Rev. B 77, 235423 (2008).[0pt] [3] V. Borovikov, Y. Shim and J. G. Amar, Phys. Rev. B 76, 241401(R) (2007).[0pt] [4] Y. Shim, V. Borovikov, B. P. Uberuaga, A. F. Voter, and J. G. Amar, Phys. Rev. Lett. 101, 116101 (2008).

  15. Solids Far from Equilibrium

    NASA Astrophysics Data System (ADS)

    Godrèche, C.

    2011-03-01

    Preface; 1. Shape and growth of crystals P. Nozières; 2. Instabilities of planar solidification fronts B. Caroli, C. Caroli and B. Roulet; 3. An introduction to the kinetics of first-order phase transition J. S. Langer; 4. Dendritic growth and related topics Y. Pomeau and M. Ben Amar; 5. Growth and aggregation far from equilibrium L. M. Sander; 6. Kinetic roughening of growing surfaces J. Krug and H. Spohn; Acknowledgements; References; Index.

  16. Cristallisation par onde acoustique : le cas de l'héliumCrystallization by acoustic waves: the case of helium

    NASA Astrophysics Data System (ADS)

    Ben Amar, Martine; Brenner, Michael P.; Rice, James R.

    2003-09-01

    We establish a theoretical model to explain the nucleation of a crystal of helium by an acoustic over-pressure. We explain the interfacial laws for this ultra-fast cristallization, close to the sound speed. Assuming spherical symmetry and taking into account the experimental data, we recover the dynamics of the growth and melting during an over-pressure impulse. To cite this article: M. Ben Amar et al., C. R. Mecanique 331 (2003).

  17. The Bjerknes instability during crystal nucleation by acoustic waves

    NASA Astrophysics Data System (ADS)

    Ben Amar, Martine

    2004-05-01

    The instability of position of a growing spherical crystal in an acoustic field is studied. Due to the Bjerknes force, a spherical crystal, whose position is shifted from an antinode of pressure, moves in the acoustic field. This displacement, stable in the case of bubbles in a cavitation experiment, turns out to be unstable in the case of crystallization. This effect is studied for an arbitrary Atwood number. To cite this article: M. Ben Amar, C. R. Mecanique 332 (2004).

  18. Advanced Study Institute on the Science and Technology of Nanostructured Magnetic Materials

    DTIC Science & Technology

    1991-02-21

    Hernando Laboratoire de Magnetismo Dr. D. Mergel Facultad de C Fisicas Philips Research Lab University Completense D-2000 Hamburg 54 28040 Madrid, SPAIN...Professor H. Jansen Department of Physics Oregon State University Corvallis, OR 97331 Professor V. Amaral Dr. 0. Donzelli Centro de Fisica de...Universidade Dipartimento di Fisica de Porto Universita (GNSM-CISM) 4000 Porto via Paradiso 12 PORTUGAL 44100 Ferrara ITALY Dr. P. Alexopoulos IBM Almaden

  19. Science and Technology of Nanostructured Magnetic Materials

    DTIC Science & Technology

    1990-07-06

    Laboratoire de Magnetismo Dr. D. Mergel Facultad de C Fisicas Philips Research Lab University Completense D-2000 Hamburg 54 28040 Madrid, SPAIN POB 540840...Department of Physics Oregon State University Corvallis, OR 97331 SEpEAKER$ Professor V. Amaral Dr. 0. Donzelli Centro de Fisica de Universidade...Dipartimento di Fisica de Porto Universita (GNSM-CISM) 4000 Porto via Paradiso 12 PORTUGAL 44100 Ferrara ITALY Dr. P. Alexopoulos IBM Almaden Research Center

  20. EAARL coastal topography—Cape Hatteras, North Carolina, pre- and post-Hurricane Isabel, 2003

    USGS Publications Warehouse

    Fredericks, Xan; Kranenburg, Christine J.; Nagle, David B.

    2017-01-01

    These XYZ datasets provide lidar-derived bare-earth topography for Cape Hatteras, North Carolina. Elevation measurements were acquired pre-Hurricane Isabel on September 16 and post-Hurricane Isabel on September 21, 2003 by the first-generation Experimental Advanced Airborne Research Lidar (EAARL), in cooperation with the National Aeronautics and Space Administration (NASA).The authors acknowledge Jamie Cormier, Amar Nayegandhi, and Wayne Wright for lidar acquisition and processing.

  1. EAARL Coastal Topography—Fire Island, New York, 2002

    USGS Publications Warehouse

    Fredericks, Xan; Kranenburg, Christine; Nagle, David B.

    2016-01-01

    These Digital Elevation Model (DEM) and XYZ datasets provide lidar-derived bare-earth topography for Fire Island, New York. Elevation measurements were acquired on October 25 and November 8, 2002 by the first-generation Experimental Advanced Airborne Research Lidar (EAARL) in cooperation with the National Park Service (NPS) and the National Aeronautics and Space Administration (NASA).The authors acknowledge John Brock, Melanie Harris, Amar Nayegandhi, and Wayne Wright for data acquisition and processing.

  2. Development of Novel Noninvasive Methods of Stress Assessment in Baleen Whales

    DTIC Science & Technology

    2014-09-30

    Assessment in Baleen Whales Kathleen E. Hunt, Ph.D. (Lead PI) Rosalind M. Rolland, D.V.M. (Co-PI), Scott D. Kraus, Ph.D. (Co-PI) New England Aquarium...large whales . Few methods exist for assessment of physiological stress levels of free-swimming cetaceans (Amaral 2010, ONR 2010, Hunt et al. 2013...Prior to this grant, we demonstrated that respiratory vapor (blow) sampling is practical and feasible for large whales , and that blow samples contain

  3. Mobility Modeling and Estimation for Delay Tolerant Unmanned Ground Vehicle Networks

    DTIC Science & Technology

    2013-06-01

    Transactions on Mobile Computing, vol. 10, no. 1, pp. 32–43, January 2011. [12] E. Amar and S. Boumerdassi, “A Scalable Mobility-Adaptive Location...infrastructures cannot be installed. The ability to implement effective communication protocols among UGVs depends very much on the strategy of...coupled with design in path planning and routing. Reliability in UGV-DTNs is a quality of service (QoS) issue that depends on resource availability

  4. A Research Agenda for Tradespace Exploration and Analysis of Engineered Resilient Systems

    DTIC Science & Technology

    2014-03-01

    dependent ; and (c) compare alternative technologies using effectiveness models at the mission level such that systems are simulated in their intended...development of TSE education and training; rather than continued dependence on portions of TSE research and knowledge scattered across multiple domains...specifically the planning, logistics, and real-time support provided by Ms. Lois Hollan and Mr. Amar Zabarah. We also acknowledge Ms. Kristen Baldwin, Dr

  5. A Revision of the Argyritarsis Section of the Subgenus Nyssorhynchus of Anopheles (Diptera: Culicidae)

    DTIC Science & Technology

    1988-01-01

    Middle America. Contrib. Am. Entomol. Inst. (Ann Arbor) 1(2):1-17. 1967. Estudios sobre mosquitos (Diptera, Culicidae). Ia. Un proyecto para un estudio...N) pessoai na fase larvaria. Rev. Bras. Malariol. 2:38-48. Galvao, A. L. A. and F. A. D. Amaral 1938. Sobre urn novo anofelino de Campos do Jordao...Salubr. Taxonomia y distribution. Mex., D. F., P* identification de larvas en cuarta fase de Rev. Biol. Trop. 4:27-34. identification de larvas

  6. Monitoring Cetaceans in the North Pacific

    DTIC Science & Technology

    2009-04-01

    whale calls in the North Pacific Ocean: Seasonal and geographical variation 1996-2002. (by: Mary Ann Daher , Kathleen M. Stafford, Joseph E. George...correlates. (by: Kathleen M. Stafford, Sue E. Moore, Mary Ann Daher , Joseph E. George, David Rodriguez, and Kimberly Amaral) PEER-REVIEWED...remotely-sensed environmental variables to compare with current and future datasets. In 2007, a collaborative project with Ms. Mary Ann Daher of

  7. Myogenic differentiation of L6 rat myoblasts: evidence for pleiotropic effects on myogenesis by RNA polymerase II mutations to alpha-amanitin resistance.

    PubMed Central

    Crerar, M M; Leather, R; David, E; Pearson, M L

    1983-01-01

    To assess the functional role of RNA polymerase II in the regulation of transcription during muscle differentiation, we isolated and characterized a large number of independent alpha-amanitin-resistant (AmaR) mutants of L6 rat myoblasts that express both wild-type and altered RNA polymerase II activities. We also examined their myogenic (Myo) phenotype by determining their ability to develop into mature myotubes, to express elevated levels of muscle creatine kinase, and to synthesize muscle-characteristic proteins as detected by two-dimensional polyacrylamide gel electrophoresis. We found a two- to threefold increase in the frequency of clones with a myogenic-defective phenotype in the AmaR (RNA polymerase II) mutants as compared to control ethyl methane sulfonate-induced, 6-thioguanine-resistant (hypoxanthine, guanine phosphoribosyl transferase) mutants or to unselected survivors also exposed to ethyl methane sulfonate. Subsequent analysis showed that about half of these myogenic-defective AmaR mutants had a conditional Myo(ama) phenotype; when cultured in the presence of amanitin, they exhibited a Myo- phenotype; in its absence they exhibited a Myo+ phenotype. This conditional Myo(ama) phenotype is presumably caused by the inactivation by amanitin of the wild-type amanitin-sensitive RNA polymerase II activity and the subsequent rise in the level of mutant amanitin-resistant RNA polymerase II activity. In these Myo(ama) mutants, the wild-type RNA polymerase II is normally dominant with respect to the Myo+ phenotype, whereas the mutant RNA polymerase II is recessive and results in a Myo- phenotype only when the wild-type enzyme is inactivated. These findings suggest that certain mutations in the amaR structural gene for the amanitin-binding subunit of RNA polymerase II can selectively impair the transcription of genes specific for myogenic differentiation but not those specific for myoblast proliferation. Images PMID:6865946

  8. New Treatments for Drug-Resistant Epilepsy that Target Presynaptic Transmitter Release

    DTIC Science & Technology

    2012-05-01

    the region innervated by mossy fiber axons of dentate granule cells (Blackstad et al., 1970; Claiborne et al., 1986 ). Associational-commissural CA3...sectional area (Claiborne et al., 1986 ; Acsady et al., 1998; Danzer et al., 2010). The mean area of mossy fiber boutons 1-2 months after pilocarpine...Amaral DG, Cowan WM. A light and electron microscopic analysis of the mossy fibers of the rat dentate gyrus. J Comp Neurol. 1986 Apr 22;246(4):435-58

  9. Hydrologic Engineering Center: A Quarter Century 1964-1989

    DTIC Science & Technology

    1989-01-01

    APPENDICES 51 Jesse Abbott Charles Abraham Abnish Amar Anna Sue Arnold Nicolette Baptista Robert Barkau Susan Barth Leo Beard Frances Beeman ...1986 1985 1986 1986-1987 1988 1983-1988 1986-1988 1989 Appendix B Student Support Belinda Allen Donald Hansen Mary Randall Waleed AI-Rawi...Lou Sullivan Bill Arvola Donald Van Sickle Donald E. Evenson Walter Wunderlich FA Cole James Price Joseph N. Bradley Manuel Benson Michael

  10. History of the Field Artillery School. Volume 2. World War II

    DTIC Science & Technology

    1946-10-31

    67 4h 28 F( eb 44--ZO May 44 113 106 6345 1 68 47 1 AMar-44-- 3 Jun 44 148 139 6484 0 68 .18 27 Mar 44--17 Jun 44 140 133 6617 0 68 󈧒 10t Apr 44-- 1...the o-170-3 enginei starters; generators; batterieh; engine * troubles peculiar to the Pacific theater. *𔃼) Familia rizatLion with type L-5 and L 14

  11. Installation Restoration Program Technical Support Document for Record of Decision, Cape Lisburne LRRS Site

    DTIC Science & Technology

    1988-02-29

    approximately 405 hectares surrounded by the Alaska Maritime National Wildlife 3 Refuge (AMNWR). The nearest settlement is Point Hope, a Native Alaskan...accessible by sea or air. The nearest settlement is Point Hope with a population of 600, 95 percent of which is Native (Eng. Sci. 1985, U.S. Census...each of the sites. 2.8 BIBLIOGRAPHY AND CONTACTS Acevedo, W., et al., 1982. Vegetation and Land Cover Map, 3 ANWR Coastal Plan, Alaska. Amaral, M.J

  12. Identification and Characterization of the Androgen Receptor From the American Alligator, Alligator mississippiensis

    PubMed Central

    Miyagawa, Shinichi; Yatsu, Ryohei; Kohno, Satomi; Doheny, Brenna M.; Ogino, Yukiko; Ishibashi, Hiroshi; Katsu, Yoshinao; Ohta, Yasuhiko; Guillette, Louis J.

    2015-01-01

    Androgens are essential for the development, reproduction, and health throughout the life span of vertebrates, particularly during the initiation and maintenance of male sexual characteristics. Androgen signaling is mediated by the androgen receptor (AR), a member of the steroid nuclear receptor superfamily. Mounting evidence suggests that environmental factors, such as exogenous hormones or contaminants that mimic hormones, can disrupt endocrine signaling and function. The American alligator (Alligator mississippiensis), a unique model for ecological research in that it exhibits environment-dependent sex determination, is oviparous and long lived. Alligators from a contaminated environment exhibit low reproductive success and morphological disorders of the testis and phallus in neonates and juveniles, both associated with androgen signaling; thus, the alterations are hypothesized to be related to disrupted androgen signaling. However, this line of research has been limited because of a lack of information on the alligator AR gene. Here, we isolated A mississippiensis AR homologs (AmAR) and evaluated receptor-hormone/chemical interactions using a transactivation assay. We showed that AmAR responded to all natural androgens and their effects were inhibited by cotreatment with antiandrogens, such as flutamide, p,p′-dichlorodiphenyldichloroethylene, and vinclozolin. Intriguingly, we found a spliced form of the AR from alligator cDNA, which lacks seven amino acids within the ligand-binding domain that shows no response to androgens. Finally, we have initial data on a possible dominant-negative function of the spliced form of the AR against androgen-induced AmAR. PMID:25974402

  13. Identification and Characterization of the Androgen Receptor From the American Alligator, Alligator mississippiensis.

    PubMed

    Miyagawa, Shinichi; Yatsu, Ryohei; Kohno, Satomi; Doheny, Brenna M; Ogino, Yukiko; Ishibashi, Hiroshi; Katsu, Yoshinao; Ohta, Yasuhiko; Guillette, Louis J; Iguchi, Taisen

    2015-08-01

    Androgens are essential for the development, reproduction, and health throughout the life span of vertebrates, particularly during the initiation and maintenance of male sexual characteristics. Androgen signaling is mediated by the androgen receptor (AR), a member of the steroid nuclear receptor superfamily. Mounting evidence suggests that environmental factors, such as exogenous hormones or contaminants that mimic hormones, can disrupt endocrine signaling and function. The American alligator (Alligator mississippiensis), a unique model for ecological research in that it exhibits environment-dependent sex determination, is oviparous and long lived. Alligators from a contaminated environment exhibit low reproductive success and morphological disorders of the testis and phallus in neonates and juveniles, both associated with androgen signaling; thus, the alterations are hypothesized to be related to disrupted androgen signaling. However, this line of research has been limited because of a lack of information on the alligator AR gene. Here, we isolated A mississippiensis AR homologs (AmAR) and evaluated receptor-hormone/chemical interactions using a transactivation assay. We showed that AmAR responded to all natural androgens and their effects were inhibited by cotreatment with antiandrogens, such as flutamide, p,p'-dichlorodiphenyldichloroethylene, and vinclozolin. Intriguingly, we found a spliced form of the AR from alligator cDNA, which lacks seven amino acids within the ligand-binding domain that shows no response to androgens. Finally, we have initial data on a possible dominant-negative function of the spliced form of the AR against androgen-induced AmAR.

  14. Introduction of specific point mutations into RNA polymerase II by gene targeting in mouse embryonic stem cells: evidence for a DNA mismatch repair mechanism.

    PubMed Central

    Steeg, C M; Ellis, J; Bernstein, A

    1990-01-01

    We have introduced two specific point mutations, located 20 base pairs apart, into the endogenous murine gene that encodes the largest subunit of RNA polymerase II (RPII215). The first mutation conferred resistance to the mushroom toxin alpha-amanitin (amar), and the second mutation generated a restriction fragment length polymorphism without altering the protein sequence. Targeted amar clones were generated at a frequency of 1 in 30 totipotent embryonic stem cells that expressed stably integrated DNA vectors after electroporation. Thirty to 40% of these clones had acquired both mutations, whereas, surprisingly, the remaining clones had acquired the specific amar point mutation but lacked the restriction fragment length polymorphism. We suggest that the latter clones were generated by independent DNA mismatch repair rather than by double crossover or gene conversion. These results demonstrate that it is possible to introduce specific point mutations into an endogenous gene in embryonic stem cells. Thus it should be possible to introduce single base substitutions into other cellular genes, including nonselectable genes, by optimizing the efficiency of gene transfer and/or the sensitivity of screening for targeted clones. Images PMID:1972278

  15. Growth of Complex Organizations

    NASA Astrophysics Data System (ADS)

    Nunes Amaral, Luis A.

    2000-03-01

    We analyze a database comprising all publicly-traded US firms within the years 1974--93(M.H.R. Stanley et al.), Nature 379, 804 (1996); L.A.N. Amaral et al., J. Phys. (France) I 7, 621 (1997). We find (i) that the distribution of the annual growth rates ---for companies with approximately the same size S--- decays as an exponential, and (ii) that the standard deviation σ of these distributions scales as σ ~ S^-β. We introduce a dynamical model in which we assume that each firm has a complex internal structure comprising many subunits(L.A.N. Amaral et al.), Phys. Rev. Lett. 80, 1385 (1998). We study the case in which (i) each subunit grows in a multiplicative manner, and (ii) the interactions between the firms are mean field. We find agreement between our predictions and the empirical results for firms. We then analyze the fluctuations in the gross domestic product of 152 countries for the period 1950--92 and find a surprising agreement with the results for firm growth (Y. Lee et al.), Phys. Rev. Lett. 81, 3275 (1998). Finally, we analyze the fluctuations in the research output and research input of US universities and find sinilar scaling laws(V. Plerou et al.), Nature 400, 433 (1999). Our amaral/Professional.html>empirical results and model suggest that the growth of organizations with complex structure are governed by similar mechanisms.

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

    PubMed

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

    2012-09-01

    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

  17. Powder Lot Variations: A Case Study with H4831 - Hodgdon Extreme

    DTIC Science & Technology

    2012-11-30

    338 Lapua Magnum. (Endris, 2009; Webb, 2007) Other high-capacity cartridges such as the .338 Norma Magnum have been suggested as a longer range...machine gun cartridge (Steimke, 2012), and lighter recoiling cartridges similar to the 6.5x284 Norma will probably be considered by units with counter

  18. Teacher's Counselor

    ERIC Educational Resources Information Center

    Noon, Elizabeth F.

    1977-01-01

    Norma Kuder's teaching career was in jeopardy. Her personal life had been a mess for a long time, and it affected her teaching. Her principal believed that Norma didn't belong in teaching, and he warned her that her contract might not be renewed. Discusses how intelligent action by the school counselor, the principal, and fellow teachers saved a…

  19. Air Launch Instrumented Vehicles Evaluation (ALIVE).

    DTIC Science & Technology

    1977-02-01

    Motor 7 108 52 Norma l Stress Gage Sen s i t i v i t y , Motor 4 10’) 53 Norma l Stress Gage Sensitivity, Motor 7 110 94 N ormal S t r e s s...Gage Pre— Cast No—L oad Data as ~~termined I~ Th iokol , Motor 4 111 55 Norma l St ress Gage Pre—C ast No—Load Data as De te rmined by T i t i u k o l...i FIGIJIIIS (Cont inued) 102 ~ j u t e 5weep 2 , Juiuu ’ l’)79 , Norma l Gage N7—5 ’) 169 103 ‘ i u t i Sweep 2 , June 1’) S , Norma l Gage N 7— 6 1

  20. The UK Ion Thruster System and a Proposed Future Programme.

    DTIC Science & Technology

    1977-05-01

    As is norma l in the development of a comp lex sys tem, certain components must be defined almost comp le tel y before it is sensible to proceed far...outputs from T4A thruster power conditioning uni t Parameter Accuracy Norma l value Operating range Beam supply voltage ±2% 900V Stabi li sed 2 Beam...experienced under norma l operating conditions , and the possibili ty of its occurrence is considered small; the factor 4 safety marg in on minimum

  1. Analysis of microearthquakes at the non-transform offset of the Mid-Atlantic Ridge hosting the Rainbow hydrothermal system (36°14'N)

    NASA Astrophysics Data System (ADS)

    Horning, G.; Canales, J. P.; Sohn, R. A.; Dunn, R. A.

    2015-12-01

    The Rainbow hydrothermal field is an active, ultramafic-hosted system located on the Mid-Atlantic Ridge (MAR) at 36° 14'N. It is located at a non-transform discontinuity (NTD) of the MAR at the AMAR-AMAR minor segment intersection [German et al., 1996]. Rainbow, in contrast to other ultramafic-hosted systems such as Lost City, is a high-temperature site with fluids up to 365 °C [Douville et al., 2002]. A magmatic heat source must be present to account for the long-lived, high-temperature, heat flux of 1-5 GW [Thurnherr and Richards, 2001], but the nearest, known neovolcanic activity is 15-20 km away on the AMAR segment [German and Parson, 1998]. In 2013, a long-term, ocean bottom seismometer (OBS) microearthquake network of 13 instruments was deployed as part of the MARINER geophysical experiment [Dunn et al., 2013]. Over 40,000 events were detected and located within ~16 km of the active hydrothermal field during the ~200 day deployment. We present hypocenters estimated using P- and S-wave arrival times and a crustal velocity model derived from the active-source tomography component of the MARINER experiment. Moment/magnitude estimates from spectral methods indicate that the majority of events have local magnitudes (ML) of 0-1, with the largest events approaching ML ~2. First arrival polarity data demonstrate that many of the events have non-double couple source mechanisms, and we explore the use of P/S-wave amplitude ratios to constrain these focal mechanisms. The detection of predominantly non-double events indicates processes other than simple fault slip (e.g., serpentinization) are contributing to the observed seismicity and deformation. We use the spatial distribution, magnitudes, rate, and source mechanisms of the seismic events to constrain the coupled processes of hydrothermal circulation and deformation at the Rainbow massif.

  2. The neuromechanism underlying verbal analogical reasoning of metaphorical relations: an event-related potentials study.

    PubMed

    Zhao, Ming; Meng, Huishan; Xu, Zhiyuan; Du, Fenglei; Liu, Tao; Li, Yongxin; Chen, Feiyan

    2011-11-24

    Using event-related potentials (ERPs), this study investigated the neuromechanism underlying verbal analogical reasoning of two different metaphorical relations: attributive metaphor and relational metaphor. The analogical reasoning of attributive metaphor (AM-AR) involves a superficial similarity between analogues, while the analogical reasoning of relational metaphor (RM-AR) requires a structural similarity. Subjects were asked to judge whether one word pair was semantically analogous to another word pair. Results showed that the schema induction stage elicited a greater N400 component at the right anterior scalp for the AM-AR and RM-AR tasks, possibly attributable to semantic processing of metaphorical word pairs. The N400 was then followed by a widely distributed P300 and a late negative component (LNC1) at the left anterior scalp. The P300 was possibly related to the formation of a relational category, while the LNC1 was possibly related to the maintenance of a reasoning cue in working memory. The analogy mapping stage elicited broadly distributed N400 and LNC2, which might indicate the presence of semantic retrieval and analogical transfer. In the answer production stage, all conditions elicited the P2 component due to early stimulus encoding. The largest P2 amplitude was in the RM-AR task. The RM-AR elicited a larger LPC than did the AM-AR, even though the baseline correction was taken as a control for the differential P2 effect. The LPC effect might suggest that relational metaphors involved more integration processing than attributive metaphors.

  3. RLE Progress Report Number 122.

    DTIC Science & Technology

    1980-01-01

    Porkolab, Miklos Birgeneau, Robert J. Jakobson , Roman * Proakis, John* Bose, Amar G. Kennedy, Robert S. Ross, John R. Bresnan, Joan W. Keyser, Samuel J...Esther K., 179 Duckworth, Gregory L., 133 Jakobson , Roman , 159 Dupree, Thomas H., 97, 113 Jarrell, Joseph A., 2 Durand, Marie, 15 Joannopoulos, John D...Cushing Dr. H. Van Riemsdijk Prof. R. Jakobson Dr. R.A. Freidin Dr. E.C.T. Walker (Emeritus) Dr. M. Guerssel Dr. E.M. Woolford Prof. S.J. Keyser Dr. D.M

  4. Selection criterion for the growing dendritic tip in a non-isothermal binary system under forced convective flow

    NASA Astrophysics Data System (ADS)

    Alexandrov, D. V.; Galenko, P. K.; Herlach, D. M.

    2010-07-01

    A free dendrite growth during solidification into external forced flow is analyzed using a sharp interface model. A criterion for selection of the stable growth mode is derived for the axisymmetric dendrite growing into non-isothermal binary system under convective flow. The criterion obtained rallies analytic results for dendrite growth under forced convection in a pure system [Ph. Bouissou, P. Pelce, Phys. Rev. A 40 (1989) 6673] and dendrite growth in a stagnant binary system [M. Ben Amar, P. Pelce, Phys. Rev. A 39 (1989) 4263].

  5. Instabilities and Waves in Thin Films of Living Fluids

    NASA Astrophysics Data System (ADS)

    Sankararaman, Sumithra; Ramaswamy, Sriram

    2009-03-01

    We formulate the thin-film hydrodynamics of a suspension of polar self-driven particles and show that it is prone to several instabilities through the interplay of activity, polarity, and the existence of a free surface. Our approach extends, to self-propelling systems, the work of Ben Amar and Cummings [Phys. FluidsPHFLE61070-6631 13 1160 (2001)10.1063/1.1359748] on thin-film nematics. Based on our estimates the instabilities should be seen in bacterial suspensions and the lamellipodium, and are potentially relevant to the morphology of biofilms. We suggest several experimental tests of our theory.

  6. Spreading of Nematic Liquid Crystals

    NASA Astrophysics Data System (ADS)

    Poulard, Christophe

    2004-11-01

    A cyanobiphenyl liquid crystal drop in the nematic phase should spread on a silicon wafer. In fact, the drop hardly spreads due to the strong antagonist anchoring on the substrate and at the free surface. In a humidity controlled box at high RH and on a hydrophilic substrate, the friction is considerably reduced and the drop spreads easily. A well defined instability develops at the contact line, with two characteristic wavelengths, associated with a modulation of the drop thickness. A theoretical analysis, made by M. Ben Amar and L. Cummings, allows to understand one of the wavelength by an elastic approach and gives a wavelength proportionnal to the local drop's thickness.

  7. Instabilities and waves in thin films of living fluids

    NASA Astrophysics Data System (ADS)

    Sankararaman, Sumithra; Ramaswamy, Sriram

    2009-03-01

    We formulate the thin-film hydrodynamics of a suspension of polar self-driven particles and show that it is prone to several instabilities through the interplay of activity, polarity and the existence of a free surface. Our approach extends, to self-propelling systems, the work of Ben Amar and Cummings [Phys Fluids 13 (2001) 1160] on thin-film nematics. Based on our estimates the instabilities should be seen in bacterial suspensions and the lamellipodium, and are potentially relevant to the morphology of biofilms. We suggest several experimental tests of our theory.

  8. Felsic plutonism in the Al Amar—Idsas area, Kingdom of Saudi Arabia

    NASA Astrophysics Data System (ADS)

    Le Bel, L.; Laval, M.

    A tonalite—trondhjemite suite, calc-alkalic plutons and alkali-feldspar granites dated 670 and 580 Ma, intrude thick volcano-sedimentary rocks of the Al Amar group E of the Al Amar fault and the Abt schist W of the fault. The tonalite—trondhjemite suite (group I) is characterized by low Rb (50 ppm) and Sr (100-400 ppm) and by weakly fractionated rare-earth patterns (La/Yb Nca 2-3) with a weak negative Eu anomaly. Calc-alkalic plutons (group II) are richer in Rb (50-150 ppm), contain variable Sr (50-1000 ppm), and have strongly fractionated rare-earth patterns (La/Yb Nca 6-22) with no Eu anomaly. Alkali-feldspar granite (group III) is characterized by high Rb (150-200 ppm) and shows fractionated rare-earth patterns (La/Yb Nca 6-18) with a well-developed Eu anomaly. Group III includes 'specialized granites' with high Rb (300-400 ppm) and Sn (28-66 ppm), and rare-earth patterns showing a distinctive 'sea gull' profile with a very strong Eu anomaly (Eu*/Eu = 20). Oxygen isotope geochemistry suggests that group I rocks (¯x δ18O ca 7.0) were mantle-derived, and that group II and III rocks intruding the Al Amar group ( δ18O ca 7.9 and 8.8 respectively) were derived by remelting of group I, whereas those intruding Abt schist ( δ18O ca 8.7 and 10.8 respectively) were partially derived by anatexis of the Afif block. Magmatogenesis reflects an island-arc development. Rocks of group I represent the initial subduction phase. Syn- to late-tectonic plutons of group II intruded the arc east of the Al Amar fault and the accretionary prism (Abt schist) to the west, which was in collision with the older Afif block. Post-tectonic group III rocks were emplaced in an already cratonized area.

  9. Genetics Research Discovered in a Bestseller | Poster

    Cancer.gov

    By Nancy Parrish, Staff Writer One morning in early January, Amar Klar sat down at his computer and found an e-mail with a curious message from a colleague. While reading a bestselling novel, The Marriage Plot by Jeffrey Eugenides, his colleague, a professor at Princeton University, found a description of research on yeast genetics that was surprisingly similar to Klar’s early research. Even the laboratory in the novel was reminiscent of Cold Spring Harbor Laboratory, where Klar had conducted his research.

  10. Kitchen-Tested Recipes for Reading and Writing Poetry (Modern Poetry in the Classroom).

    ERIC Educational Resources Information Center

    Vogel, Mark; Tilley, Janet

    1994-01-01

    Provides an account of how one English teacher fosters student appreciation of poetry by using poems dealing consistently with one theme: family relationships. Discusses student response to several poems used, including "A Daughter's House" by Norma Hope Richman. (HB)

  11. Protecting Holden Caulfield and His Friends from the Censors.

    ERIC Educational Resources Information Center

    Jenkinson, Edward B.

    1985-01-01

    Surveys the textbook censorship picture over the past decade with particular attention to the activities of Tim LaHaye and Norma and Mel Gabler. Suggests 10 steps teachers can take to try and protect controversial texts from censorship. (RBW)

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

    EPA Science Inventory

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

  13. 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...

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

    NASA Astrophysics Data System (ADS)

    Stephens, Robert D.

    2012-04-01

    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.

  15. Probabilistic Measures of Compromise

    DTIC Science & Technology

    1976-01-01

    at the net~.ork does in fact perfor m its int ended f u n c t i o ns . I f not , ut i i i :e the fa~ i I t — j ~ 01 at ion c apa h i I t v t o do t...Security error , fault mask , etc. . FAULT Normal fault Normal INTT Normal interrupt to processor NO ACTION H a l t NORMA L ACTI ON Norma l con trol action

  16. USSR Report, Political and Sociological Affairs

    DTIC Science & Technology

    2007-11-02

    imeni I. Lauristin and the associations imeni V. Klementi, Norma , Standard, and Marat where thousands of people work. The reports of director...as the Vazar and Norma associations, the Oruskiy Peat Combine, the Tartu Model Foundry and Machinery Plant, and others. Bonds often have a formal...old Aynash- Apa , entering the water and softly caressing the waves. "This is how I have bathed my entire life," She explains, "It has become my

  17. International Biophysics Congress (8th) Held in Bristol, United Kingdom on 29 July-4 August 1984. Final Programme and Book of Abstracts

    DTIC Science & Technology

    1986-02-03

    tendency of qApA as compared towards Z-DNA are turned around to a position 180 to APA . away from B-DNA position they have. Other interes- Probing of the...teglssraeae significant differences in norma % n/-hloei rtr evlae cytes. oaut. eoliminary papers have been published in Bic-footrochem. & ’Bioenerg. 2, 31...thostatic position (head-down) and aided in norma - lization of intracranial hemodynamics. 261 262 ORAL PRESENTATION A MOLECULAR FRACTIOI METHOD FOR

  18. Proceedings of the Symposium on Psychology in the Department of Defense (8th) Held in Colorado Springs, Colorado on 21-23 April 1982

    DTIC Science & Technology

    1982-12-01

    or support. These " norma !" reactions are separated -from "abnormal" reactions by a continum based on the severity, number and duration of these...Force Psychologist. Profes- sional Psychology, Summer 1970, 1(4), 383-387. Rosenbach, W. E., and Gregory, R. A., Job Attitudes of APA Military...distinct profiles when compared to their civilian norma - tive groups. Comparison of male and female attritee’s profiles with the whole class indicated

  19. Proceedings, Resource Sharing II, 22nd Military Librarians Workshop

    DTIC Science & Technology

    1979-01-01

    according to APA was imposed because they felt it was time the data base began subsidizing itself more fully. Until now, profits made from the printed...2900 NORMA S. HARKNESS Librarian BENJAMAN C. GLIDDEN, LtCol, USAF USA Missile Material Readiness Director of Academy Libraries Command USAF Academy...VAJDA NORMA L. SELLERS Assistant Nav-j Department Librarisan Serials/Documents Librarian Blg 220 Aeromedical Library/TSK Washington Navy Yard School of

  20. Navy Water Conservation Guide for Shore Activities.

    DTIC Science & Technology

    1996-07-01

    water overuse, abuse, and apa - tation of the principles of water con- thy. DOE estimates that water use servation at your Navy facility will in the...Sacramento, CA: 1994. Camacho, Norma , et. al. Water Conservation Technology Guide. NEESA-1 - 040. Naval Energy and Environmental Support Activity...Conservation Technology Document, Naval Civil Engineering Laboratory, page 7-8. Port Hueneme, CA: 1985. Figure 4-7: Camacho, Norma , et. al. NEESA 1-040

  1. The NORDA (Naval Ocean Research and Development Activity) Review.

    DTIC Science & Technology

    1986-03-01

    l APa @ I m. trol of output waveshapxe and frequency. Also due to This level can be achieved over a frequency range from inaccessibility and remote...downstream of Cape Hatteras. Recently, Thompson and Norma eRS v ,ase t It Hurlburt (1982) and Hurlburt and Thompson (1984), both (a) MO henceforth...n AnT CONT RIDGE I - - MARGIN CREST CRUSTAL MAGNETIC MODEL OBEVE ANOMALIES (Wn) NORMA - E VERSED 2 CRUST MAGNETIZATION OBJECTIVES 0SEAFLOOR AGE

  2. History of Special Operations Forces in Malaysia

    DTIC Science & Technology

    2013-06-01

    step up the hunt in towns, red flags go up overnight,” The Straits Times, May 21, 1968. 204 Chin, Peng, Ian Ward, and Norma O. Miraflor, My Side of...There were many operations accomplished by the MSSU before the Second Emergency. Among them was Operation Apas Balong, in April 1966, near Slim Pompon...Westport, CT: Praeger, 1996. Chin, Peng, Ian Ward, and Norma O. Miraflor. My Side of History, Singapore: Media Masters, 2003. Chynowyth, John

  3. Tip selection in three-dimensional dendrites

    NASA Astrophysics Data System (ADS)

    Foster, M. R.; Tanveer, S.

    2004-11-01

    Dendrites are well-known to have a fully three-dimensional structure, often with four equally-spaced fins emanating from the steady parabolic tip, the pattern for which has now a good theoretical foundation.(McFadden, Coriell & Sekerka, J. Crys. Growth) 208 (2000) The four fins are of course related to four-fold crystalline anisotropy of quite small magnitude. We follow Tanveer(Tanveer, S. Phys. Rev. A) 40 (1989) in carefully exploring the matching of the inner solution in the neighborhood of the singularity nearest the real line to the small-surface-energy regular perturbation expansion, in order to obtain the (selected) tip radius and the amplitude of the fin. We consider the case for which the anisotropy parameter, α, is much larger than a dimensionless capillary length to the 4/7 power. We confirm what was already found in a slightly different parameter range(Ben Amar & Brener, Phys. Rev. Lett.) 71 (1993)--that the inner equation is essentially that of the two-dimensional case, with azimuthally-dependent parameters. We compare our results with those of Ben Amar & Brener.

  4. Reaching extended length-scales with accelerated dynamics

    NASA Astrophysics Data System (ADS)

    Hubartt, Bradley; Shim, Yunsic; Amar, Jacques

    2012-02-01

    While temperature-accelerated dynamics (TAD) has been quite successful in extending the time-scales for non-equilibrium simulations of small systems, the computational time increases rapidly with system size. One possible solution to this problem, which we refer to as parTAD^1 is to use spatial decomposition combined with our previously developed semi-rigorous synchronous sublattice algorithm^2. However, while such an approach leads to significantly better scaling as a function of system-size, it also artificially limits the size of activated events and is not completely rigorous. Here we discuss progress we have made in developing an alternative approach in which localized saddle-point searches are combined with parallel GPU-based molecular dynamics in order to improve the scaling behavior. By using this method, along with the use of an adaptive method to determine the optimal high-temperature^3, we have been able to significantly increase the range of time- and length-scales over which accelerated dynamics simulations may be carried out. [1] Y. Shim et al, Phys. Rev. B 76, 205439 (2007); ibid, Phys. Rev. Lett. 101, 116101 (2008). [2] Y. Shim and J.G. Amar, Phys. Rev. B 71, 125432 (2005). [3] Y. Shim and J.G. Amar, J. Chem. Phys. 134, 054127 (2011).

  5. Adaptation of abbreviated mathematics anxiety rating scale for engineering students

    NASA Astrophysics Data System (ADS)

    Nordin, Sayed Kushairi Sayed; Samat, Khairul Fadzli; Sultan, Al Amin Mohamed; Halim, Bushra Abdul; Ismail, Siti Fatimah; Mafazi, Nurul Wirdah

    2015-05-01

    Mathematics is an essential and fundamental tool used by engineers to analyse and solve problems in their field. Due to this, most engineering education programs involve a concentration of study in mathematics courses whereby engineering students have to take mathematics courses such as numerical methods, differential equations and calculus in the first two years and continue to do so until the completion of the sequence. However, the students struggled and had difficulties in learning courses that require mathematical abilities. Hence, this study presents the factors that caused mathematics anxiety among engineering students using Abbreviated Mathematics Anxiety Rating Scale (AMARS) through 95 students of Universiti Teknikal Malaysia Melaka (UTeM). From 25 items in AMARS, principal component analysis (PCA) suggested that there are four mathematics anxiety factors, namely experiences of learning mathematics, cognitive skills, mathematics evaluation anxiety and students' perception on mathematics. Minitab 16 software was used to analyse the nonparametric statistics. Kruskal-Wallis Test indicated that there is a significant difference in the experience of learning mathematics and mathematics evaluation anxiety among races. The Chi-Square Test of Independence revealed that the experience of learning mathematics, cognitive skills and mathematics evaluation anxiety depend on the results of their SPM additional mathematics. Based on this study, it is recommended to address the anxiety problems among engineering students at the early stage of studying in the university. Thus, lecturers should play their part by ensuring a positive classroom environment which encourages students to study mathematics without fear.

  6. Detection and serotyping of Mediterranean plum pox virus isolates by means of strain-specific monoclonal antibodies.

    PubMed

    Myrta, A; Di Terlizzi, B; Boscia, D; Caglayan, K; Gavriel, I; Ghanem, G; Varveri, C; Savino, V

    1998-09-01

    Plum pox virus (PPV) is a major threat to the expanding Mediterranean stone fruit industry. In order to control the plum pox disease it is of utmost importance to detect early PPV foci and to identify the PPV isolates involved. A survey was therefore carried out in Albania, Cyprus, Egypt, Greece, Italy and Turkey by a double-antibody sandwich enzyme-linked immunosorbent assay (DAS-ELISA) with the following monoclonal antibodies (MAbs): 5B (universal), 4DG5 (PPV-D-specific), AL (PPV-M-specific), TUV and AC (PPV-C-specific), and EA24 (PPV-El Amar-specific). A hundred and seventy Mediterranean PPV isolates were tested for strain type. PPV-M was detected in Albania, Cyprus, Greece, Italy, and Turkey; PPV-D was detected in Albania and Italy, whereas samples with natural mixtures of both strains were found in a couple of orchards in Albania. Seven PPV isolates from apricots in two Egyptian localities were recognized only by MAb EA24. In conclusion, DAS-ELISA with a combination of the universal MAb5B and the MAbs specific to the four PPV serotypes currently known (M, D, C and El Amar) is an efficient tool for a simple, sensitive and routine detection of PPV and discrimination of its serotypes.

  7. Sublattice parallel replica dynamics

    NASA Astrophysics Data System (ADS)

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

    2014-06-01

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

  8. Automated Masking of AFLP Markers Improves Reliability of Phylogenetic Analyses

    PubMed Central

    Gimnich, France

    2012-01-01

    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

  9. 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

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

    2007-01-01

    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

  10. Effects of Steering and Shadowing in Epitaxial Growth

    NASA Astrophysics Data System (ADS)

    Amar, Jacques

    2005-03-01

    While shadowing has been known to play a role in some thin-film deposition processes, until recently it has been assumed that in epitaxial growth the effects of steering and shadowing are negligible. Here we present analytical and molecular dynamics results describing the effects of steering due to the short-range and long-range van der Waals (vdW) attraction in metal (100), (111) and (110) epitaxial growth. Our results lead to a general picture of the process of deposition near step-edges^1,2 which is quite different from the standard downward funneling picture. In particular, we find that short-range attraction plays an important role not only before but also after collision with the step. As a result, it can significantly enhance the uphill current, selected mound angle, and surface roughness in epitaxial growth. In the case of deposition on metal (111) and (110) surfaces we also find a significant asymmetry between the interaction at A and B steps which may be explained by differences in the step geometry. General expressions for the surface current and selected mound angle valid for arbitrary crystal geometry are also presented. We have also calculated the vdW constant describing the long-range interaction between a Cu atom and a Cu(100) surface.^3 Our result is large enough to explain recent observations^4 of a significant increase in mound angle in Cu/Cu(100) growth for large angles of incidence (θ> 50^o) and also indicates that for smaller angles of incidence the dominant effects are due to the short-range rather than to the long-range interaction. Finally, we discuss the effects of shadowing in oblique incidence epitaxial growth and its implications for the control of nanoscale patterning.1. J. Yu and J.G. Amar, Phys. Rev. Lett. 89, 286103 (2002).2. J. Yu and J.G. Amar, Phys. Rev. B 69, 045426 (2004).3. J.G. Amar, Phys. Rev. B 67, 165425 (2003).4. S. van Dijken et al, Phys. Rev. B 61, 14047 (2000).

  11. Pilot Assessment of Brain Metabolism in Perinatally HIV-Infected Youths Using Accelerated 5D Echo Planar J-Resolved Spectroscopic Imaging

    PubMed Central

    Iqbal, Zohaib; Wilson, Neil E.; Keller, Margaret A.; Michalik, David E.; Church, Joseph A.; Nielsen-Saines, Karin; Deville, Jaime; Souza, Raissa; Brecht, Mary-Lynn; Thomas, M. Albert

    2016-01-01

    Purpose To measure cerebral metabolite levels in perinatally HIV-infected youths and healthy controls using the accelerated five dimensional (5D) echo planar J-resolved spectroscopic imaging (EP-JRESI) sequence, which is capable of obtaining two dimensional (2D) J-resolved spectra from three spatial dimensions (3D). Materials and Methods After acquisition and reconstruction of the 5D EP-JRESI data, T1-weighted MRIs were used to classify brain regions of interest for HIV patients and healthy controls: right frontal white (FW), medial frontal gray (FG), right basal ganglia (BG), right occipital white (OW), and medial occipital gray (OG). From these locations, respective J-resolved and TE-averaged spectra were extracted and fit using two different quantitation methods. The J-resolved spectra were fit using prior knowledge fitting (ProFit) while the TE-averaged spectra were fit using the advanced method for accurate robust and efficient spectral fitting (AMARES). Results Quantitation of the 5D EP-JRESI data using the ProFit algorithm yielded significant metabolic differences in two spatial locations of the perinatally HIV-infected youths compared to controls: elevated NAA/(Cr+Ch) in the FW and elevated Asp/(Cr+Ch) in the BG. Using the TE-averaged data quantified by AMARES, an increase of Glu/(Cr+Ch) was shown in the FW region. A strong negative correlation (r < -0.6) was shown between tCh/(Cr+Ch) quantified using ProFit in the FW and CD4 counts. Also, strong positive correlations (r > 0.6) were shown between Asp/(Cr+Ch) and CD4 counts in the FG and BG. Conclusion The complimentary results using ProFit fitting of J-resolved spectra and AMARES fitting of TE-averaged spectra, which are a subset of the 5D EP-JRESI acquisition, demonstrate an abnormal energy metabolism in the brains of perinatally HIV-infected youths. This may be a result of the HIV pathology and long-term combinational anti-retroviral therapy (cART). Further studies of larger perinatally HIV

  12. Satellite Calibration Data. Annual Data Report - 1977

    DTIC Science & Technology

    1979-08-01

    Dow Point Temperature oC) at 25 moter height. Hadi ant Flux: Global Incoming: I = IVG20, I = GG495, d • G695 " Norma ] IncomLng: N = W;280, NI = GG495...1III,,) ; C = Sky Condition1 (symbolic); 1 - Prcci- Radi.a-nt P1 ux Global Incoming: I WG2SO , I =;GG�, I= RG695 1 Norma ) Inucomi ng: N WG280, N a...Global 3liomng I 1162SO, 11 G695 Norma ] ] ncomiIIIg: N IW;2 ,10 NO 66󈧵, N cxGSS 30N =03,N (Uni iS lii! i Wlts pl sq.c. cent ilt ~t.e m CI I. SoUi

  13. Relaxation of the resistive superconducting state in boron-doped diamond films

    NASA Astrophysics Data System (ADS)

    Kardakova, A.; Shishkin, A.; Semenov, A.; Goltsman, G. N.; Ryabchun, S.; Klapwijk, T. M.; Bousquet, J.; Eon, D.; Sacépé, B.; Klein, Th.; Bustarret, E.

    2016-02-01

    We report a study of the relaxation time of the restoration of the resistive superconducting state in single crystalline boron-doped diamond using amplitude-modulated absorption of (sub-)THz radiation (AMAR). The films grown on an insulating diamond substrate have a low carrier density of about 2.5 ×1021cm-3 and a critical temperature of about 2 K . By changing the modulation frequency we find a high-frequency rolloff which we associate with the characteristic time of energy relaxation between the electron and the phonon systems or the relaxation time for nonequilibrium superconductivity. Our main result is that the electron-phonon scattering time varies clearly as T-2, over the accessible temperature range of 1.7 to 2.2 K. In addition, we find, upon approaching the critical temperature Tc, evidence for an increasing relaxation time on both sides of Tc.

  14. Dynamic Scaling of Island-size Distribution on Anisotropic Surfaces

    NASA Astrophysics Data System (ADS)

    Li, Maozhi; Wang, E. G.; Liu, Banggui; Zhang, Zhenyu

    2002-03-01

    Dynamic scaling of island-size distribution on isotropic and anisotropic surfaces in submonolayer growth is systematically studied using kinetic Monte Carlo simulations. It is found that the island-size distribution in anisotropic submonolayer growth exhibits a general dynamic scaling behavior. An analytic expression is proposed for the scaling function, and is compared with the simulation results. This scaling function not only improves previous results for the isotropic growth (1), but also describes the scaling behavior of the island-size distribution in anisotropic submonolayer growth very well (2). 1. J. G. Amar and F. Family, Phys. Rev. Lett. 74, 2066 (1995). 2. M. Z. Li, E. G. Wang, B. G. Liu, and Z. Y. Zhang, Phys. Rev. Lett. (submitted).

  15. Calpionellid zonation of the Jurassic Cretaceous transition in North-Atlasic Tunisia. Updated Upper Jurassic stratigraphy of the `Tunisian trough' and regional correlations

    NASA Astrophysics Data System (ADS)

    Boughdiri, Mabrouk; Sallouhi, Houaïda; Maâlaoui, Kamel; Soussi, Mohamed; Cordey, Fabrice

    2006-12-01

    The analysis of calpionellid associations from jebels Amar and Jédidi sections in North-Atlasic Tunisia provides, for the first time, a precise biozonation of the Jurassic-Cretaceous transition succession. In the light of the new data obtained and considering recently published results, the age of Upper Jurassic formations is clarified, allowing correlations with the Tunisian 'Dorsale' and the North-South Axis successions. Within the Maghrebides' range, sections from the external zones correlated to the Tunisian successions are quite distinctive from their equivalent in the internal zones. Both have evolved in different palaeogeographic domains related to the early structuration of the northwestern and southwestern Tethys margins. To cite this article: M. Boughdiri et al., C. R. Geoscience 338 (2006).

  16. Imaging of Active Microwave Devices at Cryogenic Temperatures using Scanning Near-Field Microwave Microscopy

    NASA Astrophysics Data System (ADS)

    Thanawalla, Ashfaq S.; Dutta, S. K.; Vlahacos, C. P.; Steinhauer, D. E.; Feenstra, B. J.; Anlage, Steven M.; Wellstood, F. C.

    1998-03-01

    The ability to image electric fields in operating microwave devices is interesting both from the fundamental point of view and for diagnostic purposes. To that end we have constructed a scanning near-field microwave microscope which uses an open-ended coaxial probe and operates at cryogenic temperatures.(For related publications see: C. P. Vlahacos, R. C. Black, S. M. Anlage, A. Amar and F. C. Wellstood, Appl. Phys. Lett. 69), 3274 (1996) and S. M. Anlage, C. P. Vlahacos, Sudeep Dutta and F. C. Wellstood, IEEE Trans. Appl. Supercond. 7, 3686 (1997). Using this system we have imaged electric fields generated by both normal metal and superconducting microstrip resonators at temperatures ranging from 77 K to 300 K. We will present images and discuss our results including observations of clear standing wave patterns at the fundamental resonant frequency and an increased quality factor of the resonators at low temperatures.

  17. Island nucleation and growth with anomalous diffusion in one-dimension.

    PubMed

    Sabbar, Ehsan H; Amar, Jacques G

    2017-02-21

    Recently a general rate-equation (RE) theory of submonolayer island nucleation and growth was developed [J. G. Amar and M. Semaan, Phys. Rev. E 93, 062805 (2016)] which takes into account the critical island-size i, island fractal dimension df, substrate dimension d, and diffusion exponent μ, and good agreement with simulations was found for the case of irreversible growth corresponding to a critical island-size i=1 with d = 2. Here we present the results of simulations carried out in 1D (corresponding to d = 1) of island nucleation and growth with anomalous diffusion which were carried out for both the case of superdiffusion (μ>1) and subdiffusion (μ<1). Excellent agreement is found with the general RE theory for both irreversible growth (i=1) and reversible growth with i=2 for all 0≤μ≤2.

  18. Asymptotic capture number and island size distributions for one-dimensional irreversible submonolayer growth

    NASA Astrophysics Data System (ADS)

    Amar, J. G.; Popescu, M. N.

    2004-01-01

    Using a set of approximate evolution equations [J. G. Amar et al., Phys. Rev. Lett. 86, 3092 (2001)] for the average gap size between islands, we calculate analytically the asymptotic scaled capture-number distribution (CND) for one-dimensional irreversible submonolayer growth of point islands. The predicted asymptotic CND is in reasonably good agreement with kinetic Monte Carlo (KMC) results, and leads to a nondivergent asymptotic scaled island size distribution (ISD). We then show that a slight modification of our analytic form leads to analytical expressions for the asymptotic CND and a resulting asymptotic ISD which are in excellent agreement with KMC simulations. We also show that in the asymptotic limit the scaled average gap distribution is identical to the scaled CND and thus demonstrate that in this limit, the self-averaging property of the capture zones holds exactly.

  19. Modeling Island-Growth Capture Zone Distributions (CZD) with the Generalized Wigner Distribution (GWD): New Developments in Theory and Experiment

    NASA Astrophysics Data System (ADS)

    Pimpinelli, Alberto; Einstein, T. L.; González, Diego Luis; Sathiyanarayanan, Rajesh; Hamouda, Ajmi Bh.

    2011-03-01

    Earlier we showed [PRL 99, 226102 (2007)] that the CZD in growth could be well described by P (s) = asβ exp (-bs2) , where s is the CZ area divided by its average value. Painstaking simulations by Amar's [PRE 79, 011602 (2009)] and Evans's [PRL 104, 149601 (2010)] groups showed inadequacies in our mean field Fokker-Planck argument relating β to the critical nucleus size. We refine our derivation to retrieve their β ~ i + 2 [PRL 104, 149602 (2010)]. We discuss applications of this formula and methodology to experiments on Ge/Si(001) and on various organics on Si O2 , as well as to kinetic Monte Carlo studies homoepitaxial growth on Cu(100) with codeposited impurities of different sorts. In contrast to theory, there can be significant changes to β with coverage. Some experiments also show temperature dependence. Supported by NSF-MRSEC at UMD, Grant DMR 05-20471.

  20. Island nucleation and growth with anomalous diffusion in one-dimension

    NASA Astrophysics Data System (ADS)

    Sabbar, Ehsan H.; Amar, Jacques G.

    2017-02-01

    Recently a general rate-equation (RE) theory of submonolayer island nucleation and growth was developed [J. G. Amar and M. Semaan, Phys. Rev. E 93, 062805 (2016)] which takes into account the critical island-size i, island fractal dimension df, substrate dimension d, and diffusion exponent μ, and good agreement with simulations was found for the case of irreversible growth corresponding to a critical island-size i=1 with d = 2. Here we present the results of simulations carried out in 1D (corresponding to d = 1) of island nucleation and growth with anomalous diffusion which were carried out for both the case of superdiffusion (μ >1 ) and subdiffusion (μ <1 ). Excellent agreement is found with the general RE theory for both irreversible growth (i=1) and reversible growth with i=2 for all 0 ≤μ ≤2 .

  1. Thermal variations of domain wall thickness and number of domains in magnetic rectangular grains

    NASA Astrophysics Data System (ADS)

    Xu, Song; Merrill, Ronald T.

    1990-12-01

    Equilibrium domain wall thickness and number of domains in rectangular magnetic grains are determined by using a modified Amar model. It is shown that domain structure, particularly domain wall thickness, in a magnetized grain depends strongly on grain shape and orientation. These dependencies are attributed to the existence of two competing self-magnetostatic interactions, one from the ends of the grain and the other from the sides. One of the consequences of this is that the thermal variation of domain wall thickness in an elongated grain is greater (smaller) than predicted by classical theory when the grain is magnetized along the shortest (longest) dimension. For magnetite, classical theory provides a good approximation in predicting both domain wall thickness and number of domains in equal-dimensional grains larger than about 4 μm.

  2. Evolution of optimal Lévy-flight strategies in human mental searches

    NASA Astrophysics Data System (ADS)

    Radicchi, Filippo; Baronchelli, Andrea

    2012-06-01

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

  3. Flash Updates of GSC projects (GSC8 Meeting)

    ScienceCinema

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

    2016-07-12

    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.

  4. Code System to Perform Neutronic and Thermal-Hydraulic Subchannel Analysis from Converged Coarse-Mesh Nodal Solutions.

    SciTech Connect

    SALINA, E.

    2000-06-14

    Version 00 NORMA-FP is an auxiliary program which can perform a neutronic and thermal-hydraulic subchannel analysis, starting from global core calculations carried out by both PSR-471/NORMA or PSR-492/QUARK codes. Detailed flux and power distributions inside homogenized nodes are computed by a two-stage bivariate interpolation method, upon separation of the axial variable for which an analytical solution is adopted. The actual heterogeneous structure of a node is accounted for by fuel rod power factors computed as functions of burnup, burnup-weighted coolant density, and instantaneous coolant density.

  5. The Proceedings of the International Conference on Numerical Ship Hydrodynamics (3rd) Held in Paris, France on 16-19 June 1981

    DTIC Science & Technology

    1981-06-19

    d (x,yl) O (14) - v cose) + coso (u coso + v Sine)) where Here I cos + v sin 0 is the velocity compoonent norma l to the phase curve of tb flog...The pressure say be critten as to the th degree of freedom. , is the gen- tuh son of frre-surface and body-induced eralized norma ’, At is th. panel...the poten- wake harmonic at order A are annulled by the flow generated by each ApA distribution on eachtial, the panel width has to be small with re

  6. Software Engineering and Its Application to Avionics

    DTIC Science & Technology

    1988-01-01

    DESIGN ES RAI ES EV NEIE EI RE IEW O EE EIW EVIW AO ANACAI -DUNCIONA CTAIURTIN APA PHYSNT ITG I CAON FOUAIR PIGUR .G Rapid Prtoyp SofTtwe. " AIh...at d’Armement deavione de combat. 41-5 Lea coneione entre I** 6qoipsuents don @Yatie. dsrmes micerns doivent respecter des norma techniques qul soot A...perticularisor ]c problime par l’omploi d’une norma spicifique, la seule relation d’ordre qu’il est raisonneble deadoptor edict qu’un vocteur est

  7. Chinese-English Rocketry Dictionary. Volume 1

    DTIC Science & Technology

    1977-10-01

    1biaozhm zhsngli it norma gravity 21btaozs shongli Jasdu M R t t •it 9 normal acceleration 22biaos.h ugn gt1 i standard candle 23bastandard state 24...ecrnl±41 single Ioni nation 02 dada ue owing singlec- apa ~ 0jY praocess 03dandianwltuig 34 Imi voltage lens 04dandla i an s I Nt monnotone 03deniodizen...noralmation fastor 24 tahbi normal congruence 25taJiestian 4 • norma ! Bastion 26 a~u length of nor•al 01 faaf~rad 02rala1llatx tarady ~ 0Faladl Anqu

  8. Multifunction Radar for Airborne Applications.

    DTIC Science & Technology

    1986-07-01

    shown o Fiso of A1 %uba t array elements is selected for adaptation elements k n k nd k3 i iI. > apa - receivers are required for the main array output and...Tiefeunyproduct - 0. Time-frequenlcy product - 0. Time-frequency Product too,0 Iomlie repetitio tim - . Nrai eeiion time I Norma loa reptit.I. tme I Oftus...Iiton time - I Norma lie reeito tim i Nomlie reeito tme - # of pulse repeti tioms " of pulse repetitions IS 0 ofepulse rspetitiont Conmtdnt delay - 0

  9. Chasing Success: Air Force Efforts to Reduce Civilian Harm

    DTIC Science & Technology

    2016-03-01

    deaths.40 In chapter three, I discuss the law as a standard for judging the conduct of war and explore the relationship of legal and norma - tive...chapter in The Perfect War (forthcoming), 9, http://www.ausair- power.net/ APA -EMEAC-2013-02.html. 45. Schaffer, Wings of Judgment, 37. 46. Michael Sherry...The second reason for the law’s limited impact is the rise of norma - tive expectations, as explained in chapter 1. The nonlegal expectation that US

  10. Fundamentals of Aeronautical and Aerospace Medical Science,

    DTIC Science & Technology

    1981-07-17

    184) -I & A0A1 8 F ORE IGN TIC.iOLOY DIV UUIAN?-PAT?1m5 APA ON i tFUND~AMENTALS OF AERONAUTICAL AND AEROSPACE MEDICAL SCtEC.j (UlIJUL lI MC 01*0. A...xysel, con- rSin.- more than 1/5 of the air, is essential for human metabolism. Since human beings have lived constantly under norma " air pressure...Temperature under different air flow rate, research subjects wearing norma ; indoor clothing: 1) dry bulb temperature, C; 9) air flow, m/sec; 3) wet

  11. Operation SANDSTONE Nuclear Explosions. Atomic Weapons Tests. Operation Sandstone. Annex 1, Part 3. Volume 1. Report to Joint Chiefs of Staff

    DTIC Science & Technology

    1948-03-16

    combination and one model 15 teletypewriter. All of the above circuits were in stelled for norma l operation with the VHF AN/TRC-l equipment. H. F. FSK...force. The MT. MCKINLEY also copied the Guam NPN 5/ APA HF RTTY weather tran smission. • On 10 March, an HF duplex RTTY circu it was established...the Marshall .. Although the weather condit ions for the days preceding Yoke Day were norma ]. and typical, the existence of west—northwest winds in the

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

    NASA Astrophysics Data System (ADS)

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

    2007-12-01

    The Rainbow hydrothermal site, at 36°14'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.

  13. Fast quantification of proton magnetic resonance spectroscopic imaging with artificial neural networks

    NASA Astrophysics Data System (ADS)

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

    2006-11-01

    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 s compared to approximately 10 min for the LF-based analysis.

  14. Antimicrobial Efficacy of Ten Commercially Available Herbal Dentifrices against Specific Oral Microflora – In Vitro Study

    PubMed Central

    Reddy, Padma; Hemalatha; Reddy, Srikanth; Doshi, Dolar; Kulkarni, Suhas; Kumar, Manoj

    2015-01-01

    Aim: To determine and compare the antimicrobial efficacy of ten commercially available herbal dentifrices against specific strains of oral microflora using a standard diffusion method at full strength and 1:1 dilution at 24 h. Materials and Methods: The standard strains of Streptococcus. mutans (ATCC 21293), Streptococcus sangius (MTCC 442), Actinomyces viscosus (ATCC 3268), Staphylococcus aureus (ATCC 2592), Streptococcus pyogenes (MTCC 442) and Candida albicans (ATCC 183) were obtained. Antimicrobial efficacy of the dentifrices was tested in triplicate, at full strength and 1:1 dilution with the sterile water using a standard diffusion method for 24 h at 37°C. The antimicrobial efficacy was tested by observing the zones of inhibition in millimeters surrounding disk containing the dentifrice. Mean standard deviation and standard error of mean of the inhibitory zones was calculated for each herbal dentifrice. p<0.05 was considered statistically significant. Results: Danth Kanthi (DK) was the most effective against all the microorganisms producing larger zones of inhibition at 24 h (F.S – 40±1.5; 1:1 dilution – 40±2.71). Amar Premium (AP) also produced larger zones of inhibition against all microorganisms except S. aureus. Of all the dentifrices, least zones of inhibitions i.e., around 5 mm was observed against S. aureus by Amar Premium (AP) and Dabur Babool (DB) at 24 h. Conclusion: Based on the results of the present study, it can be concluded that all herbal dentifrices exhibited antimicrobial activity against the selected oral microorganisms, with DK being the most effective. Hence, it can be inferred that herbal dentifrices can also be recommended like the conventional formulations. PMID:26023642

  15. 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...

  16. Forty Targets of the Textbook Protesters.

    ERIC Educational Resources Information Center

    Jenkinson, Edward B.

    This paper gives a brief history of the Reverend Jerry Falwell's Moral Majority campaign against humanism in public school education. The document describes the successful textbook evaluation strategies of Mel and Norma Gabler of Texas, on which Dr. Falwell relies heavily, and lists 20 organizations protesting textbooks, library books, and…

  17. Are the Guerrillas Gone? A Historical Political Economy and Social Analysis of the Rise and Demise of the Fuerzas Armadas Revolucionarias Colombianas (FARC), 1964-2010

    DTIC Science & Technology

    2009-12-01

    Cortés Vargas, C., & Herrera Soto, R. (1979). Los sucesos de las bananeras : Historia de los acontecimientos que se desarrollaron en la zona...esperanzas (1st ed.). Santafé de Bogotá: Cerec : Grupo Editorial Norma. Pardo Rueda, R. (2004). La historia de las guerras (1st ed.). Barcelona ; Bogotá

  18. A Lightning Rod on Civil Rights.

    ERIC Educational Resources Information Center

    Healy, Patrick

    1999-01-01

    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…

  19. The Voices of Cultural Assimilation in Current Young Adult Novels.

    ERIC Educational Resources Information Center

    Angel, Ann

    2003-01-01

    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…

  20. YA Novels in the AP Classroom: Crutcher Meets Camus.

    ERIC Educational Resources Information Center

    Spencer, Patricia

    1989-01-01

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

  1. Making Connections with Contemporary Echoes.

    ERIC Educational Resources Information Center

    Baker, Bernie

    1995-01-01

    Describes an interdisciplinary high school course that used contemporary films to illustrate overarching themes in the U.S. experience. Themes included individualism/social responsibility, isolation/internationalism, and liberal/conservative. Emphasis was on conceptual rather than historic relationships (e.g. "Norma Rae" illustrated…

  2. Researching Sex Bias in the Classroom.

    ERIC Educational Resources Information Center

    Donlan, Dan

    This paper outlines five methods of research on sex bias in the classroom: one-time survey, one class/one treatment, two class/two treatment, one class/random assignment to treatment, and analysis of differentiated effect. It shows how each method could be used in attempting to measure the effect of a unit on Norma Klein's "Mom, the Wolfman and…

  3. Trustee Quarterly, 1994.

    ERIC Educational Resources Information Center

    Trustee Quarterly, 1994

    1994-01-01

    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…

  4. Impasse at the MLA

    ERIC Educational Resources Information Center

    McMillen, Liz

    2009-01-01

    At the annual gathering of the Modern Language Association (MLA), panel members seemed to talk past each other. Mark Bauerlein and David Horowitz each criticized the professoriate for not acknowledging real problems in the classroom or the ways identity politics can infringe on academic freedom. Norma V. Canti and Cary Nelson did not respond to…

  5. 20 Years and Counting

    ERIC Educational Resources Information Center

    Kuzyk, Raya

    2008-01-01

    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,…

  6. Silencing the New Woman: Ethnic and Social Mobility in the Melodramas of Norman Talmadge.

    ERIC Educational Resources Information Center

    Smith, Greg M.

    1996-01-01

    Explores silent film actress Norma Talmadge's "star persona" in the 1920s. Focuses on the public discourses that provide the background for Talmadge's departure from the screen. Analyzes why her two "talkies" failed commercially and critically. Concentrates on promotional and publicity materials and on the films themselves. (PA)

  7. Chapter & Verse

    ERIC Educational Resources Information Center

    Cavanagh, Sean

    2006-01-01

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

  8. Reading from the Right

    ERIC Educational Resources Information Center

    Cavanagh, Sean

    2005-01-01

    In this article, the author talks about Neal Frey, who for more than two decades has labored on behalf of Educational Research Analysts, a conservative Christian textbook-reviewing organization in Longview, Texas that was founded by the famously outspoken husband-and-wife team of Mel and Norma Gabler. When Mr. Gabler died at the age of 89, and…

  9. INTEGRAL detection of renewed activity from the SFXT IGR J16479-4514

    NASA Astrophysics Data System (ADS)

    Fiocchi, M.; Lepingwell, V. A.; Bazzano, A.; Natalucci, L.; Ubertini, P.; Bird, A. J.; Kuulkers, Erik

    2017-02-01

    During a recent INTEGRAL public observation of the Norma region, performed between 2017-02-14 00:07:42 and 2017-02-14 08:49:44 (UTC), activity from the Supergiant Fast X-ray Transient (SFXT) IGR J16479-4514 has been detected.

  10. A Fragile Rock

    ERIC Educational Resources Information Center

    Blackwood, Kendrick

    2006-01-01

    In this article, the author profiles Norma Jean Taylor, a teacher who is suffering from an incurable degenerative disease. She can no longer walk, or even write legibly. But with help from students and colleagues, she remains a cornerstone of her school. The disease has not yet taken her love of teaching, though it has forced her to radically…

  11. How Texas Rewrote Your Textbooks.

    ERIC Educational Resources Information Center

    Moyer, Wayne A.

    1985-01-01

    Reviews issues and events related to adopting high school biology textbooks in Texas. Specific reference is given to the viewpoints of Mel and Norma Gabler. It is argued that factors controlling textbook content should not result from past market forces, but from a permanent science constituency and an informed public. (DH)

  12. Expandable Shelter/Container Report.

    DTIC Science & Technology

    1973-06-01

    without removing whatever payload might be in the contai ner. Equ i pment located in the expanded porti on of the ES/C durin g norma l operat i ons is...and Supply BattalIon , Div isi on Support Coianand. In addition , divisional avIation battalions have an A Irc raft Maintenance Company. The TOE

  13. Explosion Hazards Associated with Spills of Large Quantities of Hazardous Materials. Phase I

    DTIC Science & Technology

    1974-10-01

    methane is relatively even more difficult to ignite. Norma ! shock tables were used to calculate At required for ignition of methane as a function of...10, U.S. Coast Guard, October 1972. Witte, S. C., and J. E. Cox, Nonchemical Explosive Interaction of’ LNG and Water. ASME Winter Annual Meeting, 28

  14. A Test Condenser to Measure Condensate Inundation Effects in a Tube Bundle.

    DTIC Science & Technology

    1981-03-01

    the predictions of Nusselt (Eq. 3), Eissenberg (Eq. 8), and Chen (Eq. ’) for the norma - lized average value of the heat transfer coefficient of a bank...Ganic, E.N., "Vapor/Liquid Interaction and Entrainment in Falling Film Evaporators", Transactions of ASME , Vol. 102, February, 19So. 22. Withers, J.G

  15. Rotational and Vibrational Spectra of Molecular Clusters.

    DTIC Science & Technology

    1986-06-30

    3 I D ’- 2095 205 209 2105 i k (c),,.-..0 WavenumbersHCN/Av ixture .Pekarlbld asM -mnmr dmr 6 9014 CARS spectra ofthe v, region of HCN in...shown above, the bond stretching constants below the structure. Values shown in parentheses were held fixed. %% -.. .4 .. 0 Table 8 Sumawy of norma

  16. Deconstructing Gender Stereotyping through Literature in L2

    ERIC Educational Resources Information Center

    Yulita, Leticia

    2010-01-01

    While it is generally accepted that literature fosters (inter)cultural learning, few qualitative studies have sought to understand in what ways interculturality is developed. This article investigates the development of Spanish L2 students' intercultural awareness through the reading of a short story entitled "Norma y Ester" by Argentine…

  17. What Works for Me.

    ERIC Educational Resources Information Center

    Vishwanadha, Hari; And Others

    1990-01-01

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

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

    ERIC Educational Resources Information Center

    Mickelson, Norma; Davies, Anne

    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…

  19. 75 FR 53280 - National Board for Education Sciences

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-31

    ... National Board for Education Sciences AGENCY: Department of Education, Institute of Education Sciences... upcoming meeting of the National Board for Education Sciences. The notice also describes the functions of... CONTACT: Norma Garza, Executive Director, National Board for Education Sciences, 555 New Jersey Ave.,...

  20. AGARD Index of Publications, 1977 - 1979.

    DTIC Science & Technology

    1980-08-01

    relative rideijtui~ apa ~lfily is 1rsiussed ire iliscissed The nieicharircal design arid the application of each relative navigation Sstem eStabIrSireS...sesernaitt of then, flying loose p0241 P179-11721 AERODYNAMIC ETALLING Psychopathology of ass traffic conttollers and radar Norma and pathological

  1. Kentucky River and Tributaries. Upper Kentucky River Navigation Project. Volume 2. Public Involvement Record.

    DTIC Science & Technology

    1980-11-01

    Organization Represented Name and Title Address or Subject of Interest Boone, Norma J. 738 Bishop Dr. Self Lexington, KY 40505 Bowen, John N., Jr. 341...that the hinted 1t Representatives of the Corps, I m to~ 1171097. onretial traffic, apa guCYh5rdae os BGADD and county governmnents will locks

  2. Neurological Basis and Potential Modification of Emotional Intelligence through Affective/Behavioral Training

    DTIC Science & Technology

    2014-12-01

    rejecting). Raw scores on the PAI were transformed to standardized T-scores based on a norma - tive sample of 1,000 community-dwelling adults as described...Emotional intelligence: Popular or scientific psychology? APA monitor, 30, 50. Mayer, J. D., Caruso, D. R., & Salovey, P. (1999). Emotional

  3. Structures and Functions of Selective Attention.

    DTIC Science & Technology

    1987-07-20

    at the American Psychological Association meeting, New York, August, 1987. To appear in a volume on Neuropsychology to be published by APA . , 1 The...le Non- - -- -- - -- medicated -S .- 500 - ’S: ,Medicated %400 Norma 300 e- Left Visual Field o--o Right Visual Field I I -* Null Valid Invalid CUE

  4. Italian Word Association Norms.

    DTIC Science & Technology

    1966-07-01

    5; Cornoditk. 3 Divano, Sale tto 2 Amete Bracciolo, Casa, Cusciflo, Giorngs-5, Giornali Grnde I LAmp~biet Tibro, ’orbida, Norma , Quio, ?Pantofole...Fatica, Firenze, Impero, Int--r, Lazio, 7mare, Metropoli, orte, ? apa , Sporca, Trieste, Urbe, Vita ROSA (33,17) Fret,. 23 Fiore 0 Profurno, Spine 7 Rossa

  5. Portuguese Armed Forces in the International Security and Assistance Force in Afghanistan: Psychological Support for the Command of Kabul International Airport

    DTIC Science & Technology

    2006-04-01

    Handbook and Classification. Washington, D.C.: APA Press and Oxford University Press. Ribeiro, R. e Surrador, A. (2005). Stress em contexto militar e...et al. (2000). Estudo de Adaptação e Estabelecimento de Normas do Inventário de Estado-Traço de Ansiedade (STAI) – Forma Y de Spielberger, para a

  6. Joint Tactical Information Distribution System (JTIDS). Class 3 Terminal Conceptual Study. Volume 4. Appendix A. Mission Profile Detail. Appendix B. Moments of the Decision Variable for preamble Detection

    DTIC Science & Technology

    1978-07-07

    deriv apa ity . typi al nn t- ivity , r n , mes~ a e tyre s . r elay nd ssibl nrtiti ning r r multi le n t requirement s . A ompa r son f the onfi...level, the REDEYE section leader is norma -1!/ appointed as the battalion air defense officer. U. In the maneuver battalions REDEYE sections, 2 teams

  7. Job Language Performance Requirements for MOS 19D.

    DTIC Science & Technology

    1982-10-01

    34~ ~-, f --ostai-- - -- o--...-- Ca-- S -. Iav A0 , Apa - vxb F 0 writing speaking ______ ____ listening_________ ________ ____ ____ written...I󈧎 need next to norma -l ten rprature not occur off on the grov-nd o-U-Iatq out of over oviall palms down ozrform permit place (v) q[ ,* ointed

  8. Role of Nitric Oxide in MPTP-Induced Dopaminergic Neuron Degeneration

    DTIC Science & Technology

    2006-06-01

    deliner an ApaS Inhillhtoc this 88. fleaunee, A. G. Hat lMoter neurons in Cu,/7n superoxide 3, 130t-1306 (2000). paper shows the Instrumnental rateof...dehydrogenase, Norma Romero for that DPHB-derived NADH, by feeding complex I, increas- her assistance in animal care, and Soliman Bakr for his es the

  9. Exceptional Family Transitional Training Program (EFTTP)

    DTIC Science & Technology

    2009-01-01

    official diag- nostic manual of the American Psychiatric Association ( APA ) in the diagnosis of PTSD, the presence of nightmares (recurrent distressing...PHOTO BY NORMA GUERRA 84 October 2007 • EP MAGAZINE/www.eparent.com tion,” said Lt. Col. Mary Burns, chief of medical management. “Case managers, PCMs

  10. Classical and Quantum Systems Foundations and Symmetries, Proceedings of the International Wigner Symposium Held in Goslar, Germany on July 16-20, 1991

    DTIC Science & Technology

    1991-07-20

    dependence of u, is found directly from (3) and its hermitean conjugate: Li, = AeA * APA " = Gu + tG’ . (6) With a particular defined orientation of the...canonical ensemble is defined by the Gibbs state of the Hamiltonian. The Gibbs measure is associated to the norma - lized weight function Z exp( - f ,U((p

  11. Turbulent Boundary Layer on a Cylinder in Axial Flow

    DTIC Science & Technology

    1988-09-29

    wall- norma 6caling or Rao’s wall-normal scaling. Other measurements of the mean velocity in a cylindrical boundary layer should be mentioned for...located near the wall at three azimuthal locations that w𔃽re 900 apa ,-t and at several streamwise spacings for flow conditions resulting in 8/a=8

  12. Proceedings of the Annual Seismic Research Symposium on Monitoring a Comprehensive Test Ban Treaty (19th). Held in Orlando, Florida on 23-25 September 1997

    DTIC Science & Technology

    1997-09-05

    ovedap»80% through envelope norma /L-ation Figure 3. Mainshock signal and product-stacked cepstra for the mainshock and two aftershocks in...equation for this simple harmonic oscillator, C . APa , 1 1 A. ART, ; 1 , . + )u = -vAu- -(- - + )u , u =-■ Ap

  13. Electronic Properties of High-Tc Superconductors. The Normal and the Superconducting State of High-Tc Materials. Proceedings of the International Winter School held in Kirchberg, Tyrol on March 7 - 14, 1992

    DTIC Science & Technology

    1992-03-14

    temperature gradient, norma - lized to signal maximum. The spatial distribution of the electric potential in the plane of the film was determined by a...6) we need the boson Green’s functions D,(p) =< -T~ apa +(r) > and Fr(p) =< -Ta_pap(r) > which describe the spin waves [43]. These may be evaluated

  14. The Changing Face of the Federal Workforce: A Symposium on Diversity. Proceedings Held at Washington, DC on 17 Feb 1993

    DTIC Science & Technology

    1993-02-17

    African-Americans. Recently, Judge Norma 3. Work to totally shatter the glass ceiling that Holloway Johnson issued a summary judgment in hiniders women and...special assignments), diverse representative success of this process. ,2 Cooperative education. 33 I" nps..’ Dkv:y Pm p.in 1 Fedu-al Apa .’ - The next

  15. Proceedings of the Special Course on Missile Aerodynamics, Held in Rhode-Saint-Genese, Belgium on 30 March-3 April 1987, Held in Athens, Greece on 18-19 May 1987 Held in Ankara, Turkey on 21-22 May 1987

    DTIC Science & Technology

    1988-04-01

    from the Mach number downstream of this norma , shock. This is given by ~AA 2 (1+ 2_~ 2 LA M i/ Maximum internal performance is achieved when the...from the Supersonic/Hypersonic Arbitrary Body Program (S/ABP) 5 . 6 . 7 and Aerodynamic Preliminary Analysis Systems ( APAS ) 9 are com- pared with

  16. 77 FR 1862 - Mailing of Tickets Under the Ticket to Work Program

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-12

    .../disabilityresearch/ttw4/TTW_Rpt4_508_vol1r.pdf . \\8\\ Altshuler, Norma, et al., Provider Experiences Under the Revised... changes. Regulatory Procedures We follow the Administrative Procedure Act (APA) rulemaking procedures specified in 5 USC 553 when we develop regulations. Generally, the APA requires that an agency provide...

  17. Computation of Viscous-Inviscid Interactions

    DTIC Science & Technology

    1981-02-01

    and theoretical computations over airfoils indicate that the magnitude of the reduction is about one half of the jump condition for norma ’ ock %aves...separation, Aps, is given by Apa = 0(1) Re -- o (37) which corresponds to the sti shock limit e .0, M! -1 = 0(1). 3.3.2 Moderate Shock Strengtl. Limit Xt-.i

  18. Burn Treatment: Annual Research Progress Report.

    DTIC Science & Technology

    1975-06-30

    to evaluate this enzymatic block and to provide therapeutic diets ich could provide adequate precursors for catecholanine synthesis. APA IAOCNI AC...Sr,300’ / Jnn’ecled Burn 00 C 250- O 200 150 100- Norma ; +95% CL 50 •) I I 0 2 3 4 5 6 7 8 I0 Time in Days Postburn Figure 1 . Fibrinogen

  19. Development of a PTSD Population Registry

    DTIC Science & Technology

    2012-09-01

    Sparrow D. (2007) Prospective study of posttraumatic stress disorder symp- toms and coronary heart disease in the Norma - tive Aging Study. Archives...ahead of print]. The use of APA information does not imply endorsement by APA . Running Head: PTSD IN VETERANS AND MILITARY PERSONNEL...production version of a manuscript published online in Psychological Services APA Copyright ©2012 2 ABSTRACT Posttraumatic stress

  20. Recruiting, Selection, Training and Military Operations of Female Aircrew (Le Recrutement, la Selection, l’Entrainement et les Operations Militaires du Personnel Navigant Feminin)

    DTIC Science & Technology

    1990-08-01

    of seven predictors: three background variables (PPL, aPA , degree), sex, and three two-way interaction terms (sex by background variable). The full...possibly abnormal EKGs 70 5O D .0634 abnormal EKGs 0 4 P .0455 EKGs with norma ] variant findings 252 279 p .0024 hypervagotonii finding 224 230 P .5870

  1. Computing Science and Statistics: Proceedings of the Symposium on the Interface: Computationally Intensive Methods in Statistics (20th) Held in Fairfax, Virginia on April 20-23, 1988

    DTIC Science & Technology

    1989-03-15

    function in (i) is nonnegative. have a limiting joint norma distrL ution with means The solution is two-fold: first is the evaluation of zero, variances one...alpha = 05 level of significance. Covariates While the models discussed above included apa = .0 lee"fsgiiac. Cvrae only one covariate, one can imagine

  2. Organizational Linkages: Understanding the Productivity Paradox,

    DTIC Science & Technology

    1994-01-01

    Research Project, Austin, Tex. WILLIAM C. HOWELL, APA Science Directorate, Washington, D.C. ROBERTA L. KLATZKY, Department of Psychology, Carnegie...nature of their relationships, the Productivity Servosystem model de- veloped by Hershauer and Ruch (1978) attempts to present a norma - tive model that

  3. Chemical Carcinogen (Hydrazine et al.) Induced Carcinogenesis of Human Diploid Fibroblasts in vitro.

    DTIC Science & Technology

    1983-12-29

    2.5 h of incubation, the medium was mutagenic innmicrobial, test systems (7 - 9 15 -17). and apa - changed to the maintenance medium and the cells were...rnomdfbolss rw . insfagror2dy.(Up) Norma firbat lcdohce eby knfr7 r Lwr Invaivebehvio afer te sme engh oexpsu e o ranormd clls FIG 2. cobntioenveness

  4. Heat Pipe and Thermal Energy Storage and Corrosion Studies (1988)

    DTIC Science & Technology

    1989-06-01

    distribution near end cap showing alumina in crevice due to polishing ......... 71 38. Norma !;ised change in concentration of constituents in #14...BSE image of grain boundary near the edge. Figure 29. Images neai inner edge of sample # 17. 63 40b a. SEI of outer edge profile. APA ’’IP b. 13SE of

  5. Motion Cues in Flight Simulation and Simulator Induced Sickness

    DTIC Science & Technology

    1988-06-01

    REFERENCES American Psychological Association (1982). Ethical principles in the conduct of research with human participants. Washington, D.C.: APA ...palpdbrales. Ce porasitage cessait en cours d’exercice ot le traci se norma - . ". lisait dans la phase LOW LEVEIý au vu do la pieto dlatterrissage, coca

  6. Geophysicists

    NASA Astrophysics Data System (ADS)

    2004-02-01

    In Memoriam: Francis R. ``Joe'' Boyd, John B. Ivey, William Warren Kellogg, Norma N. McMillin, Henry T. R. Radoski, William (Bill) Sackett, John W. Sherman, III, Kjell Petter Skjerlie, Peter Bernard Smoor; Recent Ph.D.s: Joan Bech, Mark Pickett

  7. Expanding the Literary Canon

    ERIC Educational Resources Information Center

    Horwedel, Dina

    2007-01-01

    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…

  8. Using Adolescent Fiction That Deals with Current Problems and Lifestyles to Explore Contemporary Values.

    ERIC Educational Resources Information Center

    Schwartz, Sheila

    This paper argues that a value structure must be developed and taught in the schools. The values and principles contained in the Humanistic Manifesto II are examined in the context of current adolescent literature. Discussed are such books as "It's Not What You Expect" and "Mom, The Wolfman and Me" by Norma Klein; "First Person Singular" by Vida…

  9. New Responses to Enduring Questions in Religious and Theological Education

    ERIC Educational Resources Information Center

    Siejk, Cate

    2011-01-01

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

  10. Impact of white striping on functionality attributes of broiler breast meat

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The influence of white striping (WS) on the water-holding capacity (WHC) and protein functionality attributes of broiler breast meat was investigated. Boneless breast fillets (Pectoralis major) were collected from the deboning line of a commercial processing plant and categorized by WS score (norma...

  11. Navy Characterization of Covetic Aluminum

    DTIC Science & Technology

    2011-01-31

    Analysis (wt %). Carbon via LECO combustion method gives only 0.300% carbon inclusions. The remaining 2.7% is NOT DETECTED. 6061-0 H-49 Covetic ASTM ...un er norma g ow- sc arge con t ons. However, the texture of the bottom of the plasma craters is very different as compared to ordinary Al d/ C

  12. U.S. Marine 3rd Tank Battalion Lubrication Evaluation under Hot Ambient Temperatures at Twenty-Nine Palms, California

    DTIC Science & Technology

    1988-09-01

    transmissions, and 50-grade oil in the final drives. TABLE I describes the test oils and their properties. TABUE 1. Test Lubricant Prorties ASTM Method...procedures were established as sho-’w in the program test plan (AppendiA A). Each company was to participate in norma ! -ission/training activities. B

  13. Development of Prediction Techniques for Aerodynamic Loads Acting on External Stores

    DTIC Science & Technology

    1975-11-01

    0 0 0 (5 A{ 5/5°°o 0 0 0 // F V)- 020 0 0 -0 ,/ /o- 0RDCTD ~-- 06 COMPARISON OF TEST AND PREDICTED DATA FOR CLUSTERED WEAPONS + RACK Outboard NORMA ...Experiments, Join Wiley and Sons, New York, N.Y., 1952. 10. Hotelling , H., "Some New Methods in Matrix Calculation," Anals of Mathematical Statistcs

  14. Further results of a southern survey for H-alpha emission objects

    NASA Astrophysics Data System (ADS)

    Schwartz, Richard D.; Persson, S. E.; Hamann, Frederick W.

    1990-09-01

    The identification of 160 H-alpha emission-line objects located in five southern regions near the Galactic equation (Canis Major, Puppis, Carina, Musca, and Norma) is reported. Epoch 1950 coordinates, finder charts, and cross references to other catalogs are provided for the objects.

  15. Evaluation and Assessment in Educational Information Technology.

    ERIC Educational Resources Information Center

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

    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…

  16. Assessment of herbicide sorption by biochars and organic matter associated with soil and sediment

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Sorption of two herbicides, fluridone (FLUN) and norflurazon (NORO), by whole sediment, two types of biochars and various soil/sediment organic matter (OM) fractions including nonhydrolyzable carbon (NHC), black carbon (BC) and humic acid (HA) was examined. The single-point organic carbon (OC)-norma...

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

    ERIC Educational Resources Information Center

    California Univ., San Francisco.

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

  18. Discipline-Based Art Education: Its Criticisms and Its Critics.

    ERIC Educational Resources Information Center

    Eisner, Elliot W.

    1988-01-01

    Discusses the criticisms of discipline-based art education published in the March 1988 issue of "Art Education." Responds to the arguments of Peter London, Helen Muth, Norma K. Pittard, and Karen Hamblen. States that art education would be better served if the energy devoted to criticism was directed toward constructive ends. (GEA)

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

    ERIC Educational Resources Information Center

    Flores, Norma Landa

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

  20. Geological mapping of the Rainbow Massif, Mid-Atlantic Ridge, 36°14'N

    NASA Astrophysics Data System (ADS)

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

    2008-12-01

    The Rainbow hydrothermal field at 36°14'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

  1. Temporal and Spatial Variability of Ross polynya using Multi-Satellite Observations

    NASA Astrophysics Data System (ADS)

    Park, J.; Jo, Y. H.

    2014-12-01

    Polynyas are particularly vulnerable to not only local environmental changes, but also global climate changes through air-sea-ice interactions. In order to understand the large scales of its interactions, a temporal and spatial variation of polynyas and, areas of open water in the middle of ice shelf, around the Antarctica were analyzed based on remote sensing measurements. Especially, the polynya in the Ross Sea (Ross polynya) was analyzed, which was the largest on among the all of them around the Antarctica for last decades. Accordingly, the main purpose of this presentation is to (1) evaluate a variability of Ross polynya spatial and temporal characteristics and (2) address relationship between spatial polynya variability and global warming effect. In order to conduct research the observations from the Advanced Microwave Scanning Radiometer-EOS (AMAR-E) were used. The products (SST, wind speed, cloud vapor, atmospheric water vapor and rain rate), including sea ice extent, are from June 2002 to October 2011. Additionally, Gravity Recovery and Climate Experiment (GRACE) data sets were used to estimate mass changes in adjacent ice sheet affected by local atmospheric condition. Based on the nine year's data, research results suggest that Ross polynya normally started to appear around the end of December and persist for about 77.5 days. The extent of Ross polynya in 2011 is the largest and had a tendency to increase year after year. SST in adjacent sea has slightly decreased for the same period (as 0.054◦C yr-1) due to the melting ice and variation of wind, water vapor and rain rate are 0.054 m s-1 yr-1, -0.027 mm yr-1 and 0.001 mm hr-1 yr-1, respectively. Increase land mass in the west-southern Antarctica could be the result of accumulating snow which is made of vapor induced by extended polynya. In addition, we would conduct to evaluate a correlation with characteristics of other global and local components corresponding climate change and understand that how the

  2. A pointwise constrained version of the Liapunov convexity theorem for vectorial linear first-order control systems

    NASA Astrophysics Data System (ADS)

    Carlota, Clara; Chá, Sílvia; Ornelas, António

    2016-07-01

    We generalize the Liapunov convexity theorem's version for vectorial control systems driven by linear ODEs of first-order p = 1, in any dimension d ∈ N, by including a pointwise state-constraint. More precisely, given a x ‾ (ṡ) ∈W p , 1 ([ a , b ] ,Rd) solving the convexified p-th order differential inclusion Lp x ‾ (t) ∈ co {u0 (t) ,u1 (t) , … ,um (t) } a.e., consider the general problem consisting in finding bang-bang solutions (i.e. Lp x ˆ (t) ∈ {u0 (t) ,u1 (t) , … ,um (t) } a.e.) under the same boundary-data, x ˆ (k) (a) =x ‾ (k) (a) &x ˆ (k) (b) =x ‾ (k) (b) (k = 0 , 1 , … , p - 1); but restricted, moreover, by a pointwise state constraint of the type < x ˆ (t) , ω > ≤ < x ‾ (t) , ω > ∀ t ∈ [ a , b ] (e.g. ω = (1 , 0 , … , 0) yielding xˆ1 (t) ≤x‾1 (t)). Previous results in the scalar d = 1 case were the pioneering Amar & Cellina paper (dealing with Lp x (ṡ) =x‧ (ṡ)), followed by Cerf & Mariconda results, who solved the general case of linear differential operators Lp of order p ≥ 2 with C0 ([ a , b ]) -coefficients. This paper is dedicated to: focus on the missing case p = 1, i.e. using Lp x (ṡ) =x‧ (ṡ) + A (ṡ) x (ṡ) ; generalize the dimension of x (ṡ) , from the scalar case d = 1 to the vectorial d ∈ N case; weaken the coefficients, from continuous to integrable, so that A (ṡ) now becomes a d × d-integrable matrix; and allow the directional vector ω to become a moving AC function ω (ṡ) . Previous vectorial results had constant ω, no matrix (i.e. A (ṡ) ≡ 0) and considered: constant control-vertices (Amar & Mariconda) and, more recently, integrable control-vertices (ourselves).

  3. Evaluation of the Flying Qualities Requirements of MIL-F-8785B (ASG) using the C-5A Airplane

    DTIC Science & Technology

    1975-03-20

    105 3(3.2.2) Short Period F,..quency ....... ....................... 106 .(3.2.2.2) Norma ! Symmetrical Pushdown ...... ................... 112 2...activty to )ieet selected requirements ordinarily spe(Afied foý a4epL- oy o noth~e C oss. 1.3.1 Land- or i:,ririet--ba• isi •ngation. The letter -L...C.ENTER AOF V’AýYLIMITS 4i C-SA DA-Tob STABILITY-v AXCIS SYS1IMM - -IR?1E50EMTS TAIE eFFrECr OF NORMA ,. FUEL SE.QUENC.ImH4 AND MOST AtVERSE~ CARAW LOIl4

  4. A Statistical Evaluation of Multiplicative Congruential Generators with Modulus 2 Super 31-1.

    DTIC Science & Technology

    1978-12-01

    norma l c.d.f. Let Zi min = min (Z1 ~~~ , Z~~1~ Z,2, Z~~3) (11) - Zi,max = max(Z 1 0’ z~ 1~ Z~~2~ Z~~3) Under H4 the statistics Tj4 = l_O (_Z j,min~ _Z...i ,min s _Zj,mjn _Zj,mjn) (12) T ,4 = l_O (Zi ,max~ Zi max ’ Zi max ’ Zi max) where ~~ (, ,, ) denotes a four-dimensional multivariate norma l...Congruential Sequences,” in Applications of Number Theory to Numerical Anaj isis , S. K. Zaremba , ed., Academic Press. ~~~~~~~ ~~~~: ~~~~ Iii ~~~~ ;:- ~L

  5. Worldwide U.S. Active Duty Military Deaths. Alphabetical Index by Name, 1 October 1979 Through 30 September 1994

    DTIC Science & Technology

    2012-02-16

    R TANBURG DOVER ANAMOSA SONORA A B E R D E E N LUBBOCK APA LACHICOLA C LAYTON SAN F RANC I SC O DE LANCO LATTA EVANS PA NAMA CITY S T...S NATHAN I E L N M N JR NAVY J O N E S N E A L BRAD L E Y MAR I N E C O R PS J O N E S NORMA L D O N OVAN NAVY J O N E S NORMAN CHAR L...N MCCAR TY J O E Y MCCA R T Y N I N U S E D E N MCCA S L I N T I MOTHY NORMA N MCCATH E R N L U T H E R JAME S MCCA U L E Y B R I A N

  6. Proceedings of Image Understanding Workshop Held at Miami, Florida on 9- 10 December 1985

    DTIC Science & Technology

    1985-12-01

    ra.in& &bey u.M w l87 lU VI·Y+-=0 8C \\!) where VI il the apa &ial ,..adierat ol tJw imap iDteuity I u a poiA& (s, i) iD t.he imap ud V il the...c.IIIDCillllbjecli¥Cly rut a contiDnla cl cl.lwa aod norma . IIDd 10 ’WiD 11M a fmite Mbld ot chc iafmite spu:c cl (clua. norm) pan C0¥C1iJ11 a -~ ranp: ol a...urface norma ! estimatf!d by using a S x S wi~dow. Figure 4·2: Or:ginal ra.~ge i.’":~Bgeand surface normt’la 4.2. Curvatures 4.2.1 L’sin<J Principal

  7. Earthquake Focal Mechanisms from Relative Amplitudes of P, pP and sP: Method and Computer Program,

    DTIC Science & Technology

    1979-08-01

    radiation pattern Calculate expected norma - Calculate expected norma - lised amplitude of P lised amplitude of P or pP orpP(sea surface) V Calculate...ISGNSPI 340O.312,,2C C C TFST 1 320 APA ’.A;PIAP IPI&AAI.GY.RA14XI GC IC 30 f(ARA-.L.QAT-NI) CC V. 31;0 Go T’ 3e,) C. TsSt ~ 330 AQAI.ASPIAP IF(ArAT.CT.QdA...rrST 360 AVAT-AP/ASP IcIARAT.GT.r.ATMX20 LC 10 390 IF4AAAT.L?.A.%TNZ CC IC 390 U0’J 0 380 C C TI ST BIfTI 370 APA T -&P/ASF I14A&A.GT.PA’-hLI CC TC ? I

  8. [The Portuguese Guidelines and Patients Values].

    PubMed

    Santos, Paulo; Nazaré, Isabel; Martins, Carlos; Sá, Luísa; Couto, Luciana; Hespanhol, Alberto

    2015-01-01

    Introdução: As normas de orientação clínica são instrumentos de apoio à decisão que visam a melhoria da qualidade, promovendo as boas práticas clínicas. Os cuidados orientados para o utente permitem uma melhor satisfação e autogestão da saúde, com ganhos de qualidade e potencialmente menores custos.Objetivo: Avaliar o grau de integração dos valores dos doentes nas normas de orientação clínica publicadas em Portugal. Material e Métodos: Reviram-se as 18 normas de orientação clínica da área cardiovascular publicadas em Portugal entre 2011 e 2013, procurando avaliar a introdução das ideias, medos, expectativas e preferências dos doentes. Resultados: Oito normas de orientação clínica estavam relacionadas com processos de diagnóstico e 10 com aspetos de terapêutica. Em cinco normas de orientação clínica (28%) foram encontradas referências a valores dos doentes, todas na área da terapêutica, não existindo nenhuma nas normas de orientação clínica relacionadas com o diagnóstico. A incorporação das expectativas dos doentes foi o aspeto mais presente. Em 78% existiam referências à valorização dos custos financeiros. Discussão: As normas de orientação clínica constituem-se como uma tecnologia de saúde ao dispor dos profissionais com o objetivo de melhorar a prestação dos cuidados assistenciais aos cidadãos, utilizadores últimos destes instrumentos. Como noutros países, há uma tendência a não considerar os utentes e os seus sistemas de valores na estrutura das orientações, privilegiando-se uma lógica populacional nem sempre aplicável ao caso concreto, e uma aritmética financeira pouco suportada em avaliações de custoefetividade. No caso português, a forma como foram propostas foi também condicionadora de desconfiança tanto nos profissionais como nos utentes.Conclusão: As normas de orientação clínica em Portugal apresentam uma baixa taxa de incorporação dos valores dos utentes, de uma forma mais vis

  9. Model-based online learning with kernels.

    PubMed

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

    2013-03-01

    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.

  10. Boundary Value Problems and Free Boundary Problems for Quasilinear Hyperbolic-Parabolic Coupled Systems.

    DTIC Science & Technology

    1981-09-01

    norma : Ilfl sup If(tx)I (t,x) e R(S) If(t 1,x)-f(t 2,x)I Q If(t,xI)-f(t,x2) I H t] - sup , H (U - cup , (4.6) (t.,x),(t ,x) It -t2 I (t,x 1),t,x2 ) iXl...introducing appropriate variables, the method of iteration, a priori estimation and fixed point theorems. ISI

  11. USAF Bioenvironmental Noise Data Handbook. Volume 4. MA-1A Power Unit, Gas Turbine Engine (AiResearch)

    DTIC Science & Technology

    1975-06-01

    David Eilerman of the Univer- sity of Dayton assisted in the mechanics of data processing; and Mrs. Norma Peachy and Mr. Mike Patterson prepared the...49I C2 .4 4 . .4 NC,Ŕ (1 .4 4 40 ~ .4.4. It 4 (,0 o It .4 IsI N N 0 44. II 0 C3 .4 C3 I .4 9040) 0 us I l ~ LAA I II I :), . M 1 -d UsI Wl u I

  12. An Analysis of Selected Army Promotion Board Results.

    DTIC Science & Technology

    1979-03-01

    isIs This t hes i s presents a review of recent Army o f f i c e r pro- f e s s i o n a l deve lopment and an a n a l y s i s of se lec ted p...Alternate Hypothesis). In order to perform the test of this hypothesis a norma l statistic must be calculated . The test statistic , , is given by the

  13. Sound Propagation through a Moderate Coastal Upwelling: Comparison of Modeling Prediction with Experimental Data.

    DTIC Science & Technology

    1983-08-22

    side if nwm wen Jdaw~fr 6, bieh asm "" Acoustic Propagati on Upwelling Oceanography ->In a previous paper, modeling predictions were made for the...095, -098, -03, -353 -35, -39, -952 (2), -953, -981F, -981GI 10 NAT-OSL 2 £811, £8W11il, -24, -53 3 SSPO 1 NiL 1 NRL, USRD 1 NORMA , 110 1 USOC, Code

  14. Daylighting Coefficient of Utilization Tables.

    DTIC Science & Technology

    1983-08-01

    plane is norma ~ to the window, etc. Note that if the profile or azimuth angle is 90 no sunlight can fall upon the window. 2.6 Venetian Blinds Venetian...and that Y is large compared to blinds width. The proportion of the exterior vis- i i We ~ +gi asm blid w=Idth.1spain +ai 1.15:1 Cos t ha Y Over the

  15. New Light on Weibull Theory.

    DTIC Science & Technology

    1977-09-01

    ca t a s t rop hicall y, and that the y are shear - insens i t ive , i . e . the e f fec t ive s t r e s s is the norma l s t r e s s 0 -n...Fracture Criterion for Three Dimensional Stress States,” Trans. ASME 98, 159, 1975. 13. H. Koide , “Fracture Initiation in Brittle Polycrystalline

  16. Veterans Affairs: Health Care and Benefits for Veterans Exposed to Agent Orange

    DTIC Science & Technology

    2010-09-22

    comply with the notice and comment requirements of the Administrative Procedures Act ( APA ).38 Subsequent Actions On September 21, 2006, Secretary...found by the CAVC not to have been properly rescinded under the APA .41 This action was taken by the VA as a preemptive measure in the event the...53 Norma Ketchum and Joel Michalek, “Postservice Mortality of Air Force Veterans Occupationally Exposed to Herbicides During the Vietnam

  17. Human Factors Engineering. Student Supplement,

    DTIC Science & Technology

    1981-08-01

    Psychologists as Division 21 of the APA . It seems fitting, now that engineering psychology has been recognized as a viable entity, that we examine this new...34INFIC 161ST SCALE ___________ P CIUUIOIC POP40 3 SMTCPWONSI OARIA C0" NORMA . IN. AIDS AMU Ls". PLA0D 11aw Lu". FILM PACK CLR so. RAW MOTIVE LIS mm’ 7

  18. Proceedings of the Annual Conference of the Military Testing Association (23rd) held at Arlington, Virginia, on 25-30 October 1981. Volume 1

    DTIC Science & Technology

    1981-01-01

    fairness evaluation are addressed by both professional and government agencies. The American Psychological Associa- tion ( APA ) publication, Principles...the UGES was reviewed by the APA prior to publication, thus, it is a synthe-.is of professional and governmental guidance in the technical and...end Responaibilities - State the norma ! requirements met in your specific position as wel! as any important idditional duties Addres the type of work

  19. Evaluation of a Transportable Hot-Gas Decontamination System for the Decontamination of Explosives-Contaminated Debris & Piping. Operations & Maintenance Manual. Volume III.

    DTIC Science & Technology

    1995-06-27

    40reFn wmt S~Loops I andl 2 A Until you see: DISABL LSPRAMP 8 Return to norma operating mode 148 UDC5000 Universal Digital Controller Proeuct Manual...lotc Two Pouition Ec ~ apa EMA.4CS 12616 150 20 16 120 ¶2sei) Yes ftAO44A.1024 10026 to 30 Ise 24 S093 ’go While "(".Irs U405-3 16058 go .40 20. 24 3s

  20. Veterans Affairs: Health Care and Benefits for Veterans Exposed to Agent Orange

    DTIC Science & Technology

    2008-02-11

    the Administrative Procedures Act ( APA ).20 Current Status. On September 21, 2006, Secretary Nicholson issued a memorandum directing the Board of...provisions of its Adjudication Procedures Manual, M21-1 (M21-1), that were found by the CAVC not to have been properly rescinded under the APA .22...of the Congressional Office of Technology Assessment. 24 Norma Ketchum and Joel Michalek, “Postservice Mortality of Air Force Veterans Occupationally

  1. PTSD: Prevention Focused

    DTIC Science & Technology

    2013-04-18

    likely to be alcoholic.1 In the current American Psychiatric Association ( APA ) Diagnostics and Statistical Manual of Mental Disorders (DSM-IV-TR...until 1980 that the APA designated PTSD as its own diagnostic category in the Diagnostics and Statistical Manual version III (DSM III). The National...American Medical Association 300 (2008): 663-675. 13 Norma Medina, "Prevalance and PTSD severity: Iraq & Afghanistan male combat veterans." ProQuest

  2. Churn in the Aircraft Spares Requirements Process.

    DTIC Science & Technology

    1988-04-01

    requirements sent to, * Congress as the President’s Budget. This update to the President’s Budget is not available tco the Air Staff norma . ty until the middle...Si mplIy *Stated, churn is the changing value ---f Variables over Limfe. C’ h - ,P-act s i nd ivi dual i ten requiremen’ts mcre than- It apa tthe

  3. Air and Space Power Journal. Volume 30, Number 2, Summer 2016

    DTIC Science & Technology

    2016-01-01

    Technical Report APA -TR-2009-0503, Air Power Australia, 27 January 2014, http://www.ausairpower .net/ APA -S-400-Triumf.html. 18. Ibid. Summer 2016...First Mobile VHF AESAs,” Technical Report APA -TR-2008-0402, Air Power Australia, 27 January 2014, http://www .ausairpower.net/ APA -Nebo-SVU...imaginations when influencing a new CONOPS and should state the norma - tive, optimal way of things rather than agonize over every detail of how other

  4. Proceedings of Annual Acquisition Research Symposium (7th), Hershey, Pennsylvania, 31 May-2 Jun 1978

    DTIC Science & Technology

    1978-06-01

    Control chase leadtime management: 1. The DOD order and ship time standards are based upon a norma - tive concensus of expert logisticians’ opinions The...S C.MAAtGY 527 I _. ... .. . 4 CJ 4TRACru ,ItNA’,CIAI. I)MTA RrTIIEVAL & ANJALYSIS SYSTEM II APa 7 n P13 TABLE 2 USED 0PJECTED I \\C ) .. "FTk,’Fl

  5. An Evaluation of the United States Coast Guard’s Enlisted Dining Facility Accounting and Reporting System.

    DTIC Science & Technology

    1980-09-01

    three or more SS in their authorized personnel allowance ( APA ) and which have adequate market facilities from which to obtain provisions. 3. Class C...Units with two SS in their APA and have adequate market facilities; also includes units with three or more SS without adequate market facilities. 4...1.1500 t0 % 3tandard Class -r Inaresse (subparagapb )....... n Norma Class IO ratian allolance ................ ............ (2) BaBi

  6. International Annual Conference (29th) of ICT Held in Karlsruhe, Federal Republic of Germany on June 30-July 3, 1998. Energetic Materials; Production, Processing and Characterization

    DTIC Science & Technology

    2007-11-02

    Figurer 6. mixin scre coniguraction seltot and the bindermix.ing sceonfagrato eto eebt norma , th bum ate ariaton ws thehighst (1.23%. Thebum...Ec =12, 2 J/cn 2 " 1- hk (in jim), 2- Vk/Voo 3- ev (in J/j•l), 4- qm (in kW/jil), 5-(Tm/To-I)o 6- Pmirn (in , aPas ), 7- fk 113 - 1 ANOMALOUS DETONATION

  7. USAF (United States Air Force) Stability and Control DATCOM (Data Compendium)

    DTIC Science & Technology

    1978-04-01

    SUPERSONIC NORMA L-FORCE-CURVE SLOPE FOR CONIE-CYLINDERS 4...22 0 .2 .4 n . 6* .8 1.0 ’s - . 6 .4 . 0 -2.4- SUPERSONIC SPEEDS ACN I[I~) -- Ei3~d2-_ (per...r Spctnns. Ni APA RN I AR ig"P. (l)i 23. Foster, G, V,, Mollenberg, E. F., and Woods, R. L.: Low-Speed Longitudinal Characteristics of an Unswept

  8. Proceedings of the 1981 Army Numerical Analysis and Computers Conference, held U. S. Army Missile Command, Redstone Arsenal, Alabama, 26-27 February 1981

    DTIC Science & Technology

    1981-08-01

    Chv) y-momentum ; at + a (huv) + a(hv*) = h apa -- ax aY PO ax+ + +yx 8 + a_(hDyy g> + > pav2w sin a ax aY 0 - P a 0-l Salinity: at + a (h-1 + a...more realistic results if the grid spacing is too large near the wall, Slip conditions would be implemented by setting the norma component of the

  9. History of the Armed Services Vocational Aptitude Battery (ASVAB) 1974-1980

    DTIC Science & Technology

    1980-03-01

    but the disbenefits of this course of action could be minimized by deferring the norma - tive testing until September-October, 1975, and advis- ing the...ex- tent that one is willing to assume validity and "fairness. T---his urjerstand- ing is of critical importance -in view of revised APA standards...Steve) Sellmantest control officer in the Pentegon, is interested in chairing Zvi APA synposium in September 1975 on the ASVAB. He has contacted the

  10. Proceedings of the 1980 Tri-Service Conference on Corrosion, 5-7 November 1980, US Air Force Academy, Colorado. Volume 2

    DTIC Science & Technology

    1980-11-01

    Covered the fasr’or heads -ith Corroc ion Preventive Compound, MIL-C-16173, Crade I. H-3 AIRCRAFT 1;1 I’ll’ NORMA ., ANTD AL[FRNf’TE AtJE’FrTNA The 11...of SO4 NO- RH, and time. Temperature, TSP, and SO appeared prmrl fS 4= 3 2 apae to be insignificant. Because of an observed covariance between S04

  11. The Context of Military Environments: An Agenda for Basic Research on Social and Organizational Factors Relevant to Small Units

    DTIC Science & Technology

    2014-06-01

    from institutional values? • How do soldiers formally and informally sanction the non- norma - tive or deviant behavior of their peers? • How do...Hoption. (2010). Leadership. In S. Zedeck, Ed., APA Hand- book of Industrial and Organizational Psychology (pp. 183-240). Washington, DC: American...Christie, and A. Hoption. (2010). Leadership. In S. Zedeck, Ed., APA Handbook of Industrial and Organizational Psychology (pp. 183-240). Washington, DC

  12. Status Report on Speech Research. A Report on the Status and Progress of Studies on the Nature of Speech, Instrumentation for Its Investigation, and Practical Applications.

    DTIC Science & Technology

    1985-01-01

    47 .41 apa apa apa a-pa apa wpa apa wpa CH .96 .87 .95 .97 -.02 .35 .22 .26 NM .93 .94 .91 .92 .49 .22 .61 -.02 JE .92 .94 .97 .89 .39 .29 .36 .64 BT...A * EA 15 A oma0 *normal ustressed norma unstressed "fast stressed o:5K.’. L. . .. S :SK." . 50 100 150 200 DURATION (ins) 25 CLOSING GESTIURES (n

  13. Cybertherapy 2005: A Decade of VR

    DTIC Science & Technology

    2005-07-01

    eating disorders and for body-image modification (vebim): obesity (pp. 83-107). Washington, DC: Development and preliminary evalua- APA - American...Therapy for Fear of Driving Following a Motor Vehicle Accident". 1. American Psychiatric Association: APA . CyberPsycholoqy & Behavior. 6 (3): 329-334...subject’s introduction. Then, 50 a rSchizphrenia the subject was to introduce him/herself to the 40 ] Norma avatar according to his feelings towards

  14. General Urban Warfare Amphibious Logistics Applications. Volume 1. Technical Report.

    DTIC Science & Technology

    1983-06-23

    IN HST TOTAL SUBORDINATE TO OLT 1 1 FM MED ON S LIAISON SECTION "LkMENT " NORMA , -,ST A HST T _ " _ ’ " ______ __-. _,__ H& LS CC b Com ?2 14 i ...4 * I...0. 63 FOR 4 D Sr, TOTLS- 82 88 82 80 18576. 47 ..415. 71 A-45 9; ,; ; -.. .. .- . . . ... . . LO’ATION INDLITRIRL APA Off PA)IIUl OF RCTION= 45 N

  15. Unsteady Aerodynamics - Fundamentals and Applications of Aircraft Dynamics. Conference Proceedings of the Joint Symposium of the Fluid Dynamics and Flight Mechanics Panels Held in Goettingen, Federal Republic of Germany on 6-9 May 1985.

    DTIC Science & Technology

    1985-11-01

    variations of the norma --force and pitching-moment coefficients with angle of attack are shown for the configuration without the nose boom in Fig. 8...ao =350. 150: 30 -0 -0 0 10 2 0 50=35 Fiur 35 haepan lozfgeei 2F 23 * N OSE S R A KEA K E APA -’.> FL IIUDERN _______ -,__ Figu E36.- K Drwn fX

  16. Environmental Impact Statement. Space Nuclear Thermal Propulsion Program. Particle Bed reactor Propulsion Technology Development and Validation

    DTIC Science & Technology

    1993-05-01

    seeded at &myIATI hMlOSII OF PSYAM -- 1021282-4778 ASWOCATKDIk aOeRm ft NE- APA , ;-,-701382-6110 41 SeRest Botto AsAIi Ac*e-. golts I. Lee Vega. foeymds...are Ventetd from the norma ] operations at eaCh sits. 13 and consideration given to multiple concurrent internal and 14 Turning to health and safety

  17. Proceedings of the Annual Chemical Defense Bioscience Review (5th) Held at Columbia, Maryland on 29-31 May 1985. Appendix 3

    DTIC Science & Technology

    1985-06-01

    infiltration. % +20 T ) +10a. Norma 2h; Ido 2da:3d 6d, , l . . . ays culture. One-, 2- and 3 day lesions lost weight in culture; normal skin and ! healing...slu.(i.2bhd L(i.2c exii apaed omlsrcue oeer e soln itrodi .40d 1TI: tooo°..°,I " " . b 100- 40 2f, +10 NO Tlmw tdoym Fig. S. Blood Cholinesterase

  18. Model Investigations of Lithospheric Propagation

    DTIC Science & Technology

    1988-05-01

    22iwJuo ky2+kzy J,( ApA 2 dA. (30) 8477 J Appl Phvs Vol 53.No 12.December 1982 Ronold W P King 8477 - - ., . . . -- -43- E,.4o,z) = eP ede’ Jo(Ap)22d...p. zI p,(p . .) The plane wave reflection coefficient R for norma ! o,,non, ....... 14,) Z •(.0) incidence, as seen from region i (where the dipole is

  19. Advanced Control Systems for Aircraft Powerplants

    DTIC Science & Technology

    1980-02-01

    injecteurs directs employ~s norma - lement dans les brfileurs de chaudi~re de chauffage central Maihenreusement, ce type d’injecteur n’a de bonnes...Alir Temperature, to2npd_’rature statique oxt(ric,.ure APA Power Lever Angle , angle, On lev&or des gas sozr acteur PT2 Pres~sion to tale entr*e so tour

  20. Environmental Compliance Assessment System (ECAS). Rhode Island Supplement

    DTIC Science & Technology

    1994-07-01

    year 99 microgram mm Hg millimeters of mercury pLm micrometer mgd milligrams per day Apa micropascals Chemicals CO carbon monoxide CO2 carbon...less 16 b/day, but not less Norma seasona and diurnal at any time or place than 5 mg/L at any time, than 5 mgIL at any time variations above 5 mg/L

  1. Hydrogen Assisted Cracking of High Strength Steel Welds

    DTIC Science & Technology

    1988-05-01

    AG . 69 floveof Shieldin~ga % i.* *i • f, s’ eiettrode gop3.5mm 9 ti ’s I *eloirrae~ gap 1.2 3𔃿f’. - apa 71.. 6- ID , --- A - - -- - - 10 12 I 1 18...Institute of Technology, Metallurgical and Materials Engineering Department, Chicago, IL 60616 1 ATTN: Dr. Norma ’ Breyer Director, U.S. Army Materials

  2. Scattering of Electromagnetic Radiation by Apertures: XI. The Open Cylindrical Tube of Finite Length - Axial Electric Field, Interior and Exterior Surface Charge Density and Exterior Surface Current Distribution.

    DTIC Science & Technology

    1977-03-01

    i rradiated finite length , conducting , circular cylinders at norma l broadside inc i dence. These tubes were thin walled , open at both ends and...at ~~0° on the side away from the source and monotonically increases to a maximum at about ~=±34° as we uve toward i nc reas ing 4 v a l u e s . The

  3. Combat Search and Rescue Air Force Doctrine Document 2-1.6.

    DTIC Science & Technology

    2007-11-02

    provide navigation assistance, armed escort, and assist in locating and authenticating iso - lated personnel. Although slower aircraft (e.g., A-10s) are...FAC) provides a CSARTF several significant advantages. A FAC may be able to locate and authenticate the iso - lated personnel before the arrival of other...notification of a GSAR incident, they~ will not norma ~lly proceed into medium or higher threat areas until a positive loca- t .on and coni.ct can be

  4. An X-ray source associated with a Vista Variables Survey nova candidate nova

    NASA Astrophysics Data System (ADS)

    Orio, M.; Mukai, K.; Valle, M. Della

    2016-02-01

    We report that one of the ten Galactic transients proposed to be novae, discovered in the Vista-Variables-Via Lactea (VVV) Survey disk area by Saito et al. (ATel 8602), VVV-NOV-13, is spatially coincident with a faint, hard X-ray source observed in 2011 June 16 and 17 for 19700 s in a survey of the NORMA spiral arm with the Chandra ACIS-I camera (P.I.

  5. ElectroSpark Deposition Studies for Gas Turbine Engine Component Repair

    DTIC Science & Technology

    2004-07-20

    July 20, 2004 1 ElectroSpark Deposition studies for gas turbine engine component repair Hard Chrome Alternatives Team Canadian Hard...2004 to 00-00-2004 4. TITLE AND SUBTITLE ElectroSpark Deposition studies for gas turbine engine component repair 5a. CONTRACT NUMBER 5b. GRANT...Cornelius, Oregon Norma Price – Mechanical Engineer, Project Manager John Kelley – VP R&D July 20, 2004 3 ElectroSpark Deposition (ESD

  6. ElectroSpark Deposition Studies for Gas Turbine Engine Component Repair

    DTIC Science & Technology

    2005-03-17

    March 17, 2005 1 ElectroSpark Deposition studies for gas turbine engine component repair Norma Price Advanced Surfaces and Processes, Inc. HCAT...4. TITLE AND SUBTITLE ElectroSpark Deposition studies for gas turbine engine component repair 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM... ElectroSpark Deposition (ESD) as technically feasible and commercially viable for a production-scale process, and to perform the tests necessary

  7. Results of Materials Testing for ElectroSpark Deposition

    DTIC Science & Technology

    2006-01-01

    Results of materials testing for ElectroSpark Deposition Norma Price Advanced Surfaces and Processes, Inc. HCAT Program Review Meeting Hilton San...Results of materials testing for ElectroSpark Deposition 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d. PROJECT... ElectroSpark Deposition (ESD) as technically feasible and commercially viable for a production-scale process, and to perform the tests necessary to

  8. An Application of Parameter Estimation to the Stability and Control of the BQM-147 Unmanned Aerial Vehicle

    DTIC Science & Technology

    1993-06-01

    above, Kalman estimate x ACKNOWLEDGENENT8 Thesis research cannot begin without first establishing a solid academic foundation. I shall be forever grateful...Applied Physics Laboratory, to Mr. George Mackowiec and Ms. Norma Campbell of the NASA Langley Research Center, and to Captain David Kuechenmeister...Ames, Dryden Flight Research Facility, for taking time from his busy schedule to assist me in running the pEst parameter estimation program. Finally

  9. Adhesion and Corrosion Behavior of Al-Zn and TiN/Ti/TiN Coatings on a DU-0.75 WT% Ti Alloy,

    DTIC Science & Technology

    1992-08-01

    LAViLAJTINIOU X z JAM ILC IN LAI a LAS LAS F,, NOWL LORA0 F, , Norma Lo#AN (a) (hI Fig 2. AE signal inensit%. frictional ICorcc /-, and friction coeflicient I...reported that the DU-0.75Ti behaved as the .4STY Spe(.. Publ. 640. 1978, p. 134 ( ASTM Philadelphia. PA). anode during the initial immersion for 72 h but

  10. Re-Evaluation of the Lower San Fernando Dam; Report 2: Examination of the Post-Earthquake Slide of February 9, 1971

    DTIC Science & Technology

    1989-09-01

    Thus no energy correction was required. 2. The Dept. of Water Resources test procedures at that time used the ASTM sampling tube without the liners. The...jAI.~ L NORMA ~LIZED AXIAlL STRESS Time (secon~ds) NORMALIZED EXCESS PORE PRESSURE _ C W tint~~ 11 !1!ll W~ Time s9conds) (F igu e -21,contud ) 12 31

  11. Cumulative Damage Model for Advanced Composite Materials.

    DTIC Science & Technology

    1982-07-01

    ultimately used an exponential in the present example for added simplicity) and we norma - lize the function so that it becomes the modifier that determines...Testing and Design (Second Conference), ASTM STP 497, ASTM (1972) pp. 170-188. 5. Halpin, J. C., et al., "Characterization of Composites for the...Graphite Epoxy Composites," Proc. Symposium on Composite Materials: Testing and Design, ASTM , (Ma’rch 20, 1978) New Orleans, LA. 18. Hashin, Z. and Rotem

  12. Electrochemical Studies of Atmospheric Corrosion.

    DTIC Science & Technology

    1979-01-01

    Todynamlc polarization curves using a mod ifiedatmospheric corrosion mon i tor (ACM). Norma l Tafel behavior was observed , the limiting current for oxygen...following a suggestion of Peter Serada, who is heading a task group on time-of-wetness measurements In ASTM GO1 .04, in which the author is participating...about 5 papers except for 1968 where a symposium on atmospheric corrosion was held which resulted in the publ ication of an ASTM Special Technical

  13. Variations in Cementitious Media.

    DTIC Science & Technology

    1986-05-01

    indicated by the 3-, 7-, and 28-day compressive strength data. Sou ndness and timeof set tin_ 17. Autoclave expansion and time-of-setting tests were...accordance with ASTM C 187. 18. From the normaL-consistency paste, autoclave specimens were molded, cured, and tested in accordance with ASTM C 151...The autoclave -expansion test was performed on portland and on blended-cement pastes, and on 20 percent mixtures of pozzolans and portland cement. 19

  14. Civilian Workforce Planning in the Department of Defense. Different Levels, Different Roles

    DTIC Science & Technology

    2006-01-01

    6Jump down to document THE ARTS CHILD POLICY CIVIL JUSTICE EDUCATION ENERGY AND ENVIRONMENT HEALTH AND HEALTH CARE INTERNATIONAL AFFAIRS NATIONAL...Holland, Mike Hurley, Ellen James, Sherry Kabin, Brian Kern, Peter Kolakowski, Sharon Lacey, Michael Laney, Cynthia Lenning, Norma Lloyd, Carol Madonna , Jim...Workforce Planning in the Department of Defense Zellman, Gail L., and Susan M. Gates, Examining the Cost of Military Child Care, Santa Monica, Calif.: RAND Corporation, MR-1415-OSD, 2002.

  15. Research in Inorganic Fluorine Chemistry.

    DTIC Science & Technology

    1987-03-01

    Corporation , Canoga Park, California 91304 (U.S.A.) SUMMARY A new synthesis of FOC1O 3 was discovered involving the fluorination of C10 4 with C1F 6 + An... Corporation . Canoga Park. Califoriai 91304 * Gas-Phase Shtrutre of Azidotrifluoromdmaae. Am Electron Diffractio. Microwave Spectroscopy, sold NormaI...hexafluorobenzene as start- GG-4 N 7 ~ 4,476,3378 Nll materials. All reacted gradually at, or near, m76nt 3 temperaturae . All solutions and products were

  16. [Presence of fecal coliforms, Escherichia coli and DNAse- and coagulase-positive Staphylococcus aureus, in "colonial" cheese sold in the city of Blumenau, Estado de Santa Catarina, Brazil].

    PubMed

    Reibnitz, M G; Tavares, L B; García, J A

    1998-01-01

    Twenty cheese samples were collected at Blumenau (SC) and were submitted to analysis in order to verify the presence of fecal coliforms, Escherichia coli and Staphylococcus aureus. Among the 20 samples of cheese, analysis revealed that 70% and 20% respectively, were not within present legal specifications (Norma 001/87-DNVSA) for fecal coliforms and Escherichia coli. For Staphylococcus, 95% of the samples were not within present legal specifications.

  17. Extinction risk and structure of a food web model

    NASA Astrophysics Data System (ADS)

    Pękalski, Andrzej; Szwabiński, Janusz; Bena, Ioana; Droz, Michel

    2008-03-01

    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.

  18. Capture-Zone Areas & the Wigner Distribution: New Case of Universal Scaling of Spacings in Fluctuating Systems

    NASA Astrophysics Data System (ADS)

    Pimpinelli, A.; Einstein, T. L.

    2007-03-01

    When investigating scaling of island sizes during growth in d dimensions, one should consider the distribution of the areas of proximity cells around nucleation centers, i.e. capture zones (CZ). Using data from kinematic Monte Carlo studies, we find that the CZ distributions in both d = 1 and d = 2 are well described by the generalized Wigner distribution (GWD) from random-matrix theory: P(s)=as^(-bs^2). P(s) accounts for a broad range of fluctuation phenomena, inc. the terrace-width distribution (TWD) on vicinal surfaces. For CZ distributions, we find = i + d/2, where i is the critical nucleus size. We present a phenomenological justification by constructing a Langevin equation similar to that used in accounting for the equilibration of TWDs. We discuss implications for processing and analysis of experimental data. Mulheran et al., PRB 53 ('96) 10261, 54 ('96) 11681; EPL 49 ('00) 617, 65 (’04) 379. Amar, Family, et al., PRL 74 ('95) 2066; PRB 64 (’01) 205404. Evans, Bartelt, et al. PRB 66 (’02) 235410; SSR 61 ('06) 1. A. Pimpinelli, H. Gebremariam, & T.L. Einstein, PRL 95 ('05) 246101

  19. Defect modeling in spreading nematic droplets

    NASA Astrophysics Data System (ADS)

    Lin, T.-S.; Kondic, L.; Cummings, L. J.

    2012-01-01

    Experiments by Poulard and Cazabat [LangmuirLANGD50743-746310.1021/la050529f 21, 6270 (2005)] on spreading droplets of nematic liquid crystal (NLC) reveal a surprisingly rich variety of behavior, including at least two different emerging length scales resulting from a contact line instability. In earlier work [Cummings, Lin, and Kondic, Phys. FluidsPHFLE61070-663110.1063/1.3570863 23, 043102 (2011)] we modified a lubrication model for NLCs due to Ben Amar and Cummings [Phys. FluidsPHFLE61070-663110.1063/1.1359748 13, 1160 (2001)] and showed that, in a qualitative sense, it can account for two-dimensional (2D) versions of the observed behavior. In the present work we propose a different approach that allows us to explore the effect of anchoring variations on the substrate, again in a 2D geometry. This in turn gives a simple way to model the presence of defects, which are nearly always present in such flows. The present model leads to additional terms in the governing equation. We explore the influence of these additional terms for some simple flow scenarios to gain insight into their influence.

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

    NASA Astrophysics Data System (ADS)

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

    2005-12-01

    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.

  1. Ab initio study of edge smoothing, atom attraction, and downward funneling in Ag/Ag(100)

    NASA Astrophysics Data System (ADS)

    Shim, Yunsic; Amar, Jacques G.

    2011-06-01

    The results of density-functional theory (DFT) calculations of the energy barriers for three low-barrier relaxation processes in Ag/Ag(100) growth—edge-zipping, atom attraction, and downward funneling—are presented and compared with embedded atom method (EAM) calculations. In general, we find good agreement between the DFT values for these processes and the values assumed in recent simulations of low-temperature Ag/Ag(100) growth [Shim and Amar, Phys. Rev. BPRBMDO1098-012110.1103/PhysRevB.81.045416 81, 045416 (2010)]. We also find reasonable agreement between our DFT results and the results of EAM calculations, although in a few specific cases there is a noticeable disagreement. In order to investigate the effects of long-range interactions, we have also carried out additional calculations for more complex configurations. While our EAM results indicate that long-range interactions such as “pinning” can significantly enhance the energy barriers for edge-zipping and atom attraction, these effects can be significantly weaker in our DFT calculations due to the redistribution of the electron density.

  2. Neoproterozoic ensialic back-arc spreading in the eastern Arabian shield: geochemical evidence from the Halaban Ophiolite

    NASA Astrophysics Data System (ADS)

    Al-Saleh, A. M.; Boyle, A. P.

    2001-07-01

    Two continental terranes (Afif and Ar Rayn) of the eastern Arabian Shield are separated by the Al-Amar Suture Zone, the western boundary of which is marked by the Halaban Belt, the largest ophiolite sheet in the eastern shield. REE and other immobile trace element concentrations suggest the Halaban Ophiolite formed in an ensialic back-arc basin in a supra-subduction zone setting. Based on this, a new tectonic model for the eastern Arabian Shield was constructed. This model assumes the existence of a westerly-dipping subduction zone at about 700 Ma above which back-arc spreading resulted in the break up of the continental margin of the Afif Terrane and the formation of a short-lived marginal basin. Basin closure took place at around 680 Ma, but a westerly-dipping subduction zone continued to exist further east beneath the Ar Rayn Terrane for at least 60 Ma. In the period 620—600 Ma, collision with a continental mass (now concealed by Phanerozoic sedimentary rocks) gave rise to widespread granitic magmatism in the eastern shield, as well as crustal-scale strike-slip faulting.

  3. Modeling and simulations of the spreading and destabilization of nematic droplets

    NASA Astrophysics Data System (ADS)

    Cummings, L. J.; Lin, T.-S.; Kondic, L.

    2011-04-01

    A series of experiments [C. Poulard and A. M. Cazabat, "Spontaneous spreading of nematic liquid crystals," Langmuir 21, 6270 (2005)] on spreading droplets of nematic liquid crystal (NLC) reveals a surprisingly rich variety of behaviors. Small droplets can either be arrested in their spreading, spread stably, destabilize without spreading (corrugated surface), or spread with a fingering instability and corrugated free surface. In this work, we discuss the problem of NLC drops spreading in a simplified two-dimensional (2D) geometry. The model that we present is based on a long-wavelength approach for NLCs by Ben Amar and Cummings ["Fingering instabilities in driven thin nematic films," Phys. Fluids 13, 1160 (2001); L. J. Cummings, "Evolution of a thin film of nematic liquid crystal with anisotropic surface energy," Eur. J. Appl. Math. 15, 651 (2004)]. The improvements in the model here permit fully nonlinear time-dependent simulations. These simulations, for the appropriate choice of parameter values, exhibit 2D versions of most of the phenomena mentioned above.

  4. Structure, dynamic and energetic of mixed transition metal clusters. A computational study of mixed clusters of silver and nickel

    NASA Astrophysics Data System (ADS)

    Hewage, J. W.; Rupika, W. L.; Amar, F. G.

    2012-11-01

    Classical molecular dynamics simulation (MD) with Sutton-Chen potential has been used to generate the minimum energy and to study the thermodynamic and dynamic properties of mixed transition metal cluster motifs of Ag n Ni(13- n) for n ≤ 13. Literature results of thirteen particle clusters of neat silver and nickel atoms were first reproduced before the successive replacement of the silver atom by nickel. Calculation was repeated for both silver-centred and nickel-centred clusters. It was found that the nickel-centred clusters were more stable than the silver-centred clusters. Heat capacities and hence the melting points of silver and nickel-centred clusters were determined by using the Histogram method. Species-centric order parameters developed by Hewage and Amar were used to understand the dynamic behaviour in the transition of silver-centred clusters to more stable nickel-centred clusters. This species-centric order parameter calculation further confirmed the stability of nickel-centred clusters over those of silver-centred species.

  5. Structural rejuvenation of the eastern Arabian Shield during continental collision: 40Ar/ 39Ar evidence from the Ar Ridayniyah ophiolitic mélange

    NASA Astrophysics Data System (ADS)

    Al-Saleh, A. M.; Boyle, A. P.

    2001-07-01

    The Ar Ridayniyah ophiolitic mélange is one of a number of such complexes found within or at the peripheries of the Neoproterozoic Al-Amar Suture of the eastern Arabian Shield. This suture is sandwiched between the Ar Rayn island-arc terrane on the east and the much larger Afif continental block to the west, and is thought to represent the site of a 695—680 Ma back-arc basin that separated the two terranes. A thick and monotonous unit of metagraywacke (Abt Schist) underlies most of the suture along with scattered outcrops of metavolcanics and ophiolitic mélange. One of these bodies is the Ar Ridayniyah mélange, which occurs as a longitudinal belt of sheared ultramafic schists enclosing abundant blocks of oceanic serpentinites, as well as subordinate gabbros and basalts. The western boundary of this mélange is defined by the Ar Ridayniyah thrust fault. The 610—600 Ma ages obtained from the metagabbros of this complex are considered to record the reactivation of the Ar Ridayniyah Fault during continental collision, 60 Ma after ophiolite emplacement.

  6. Uniformly Valid Asymptotic Solution of Steady Dendrite Growth in External Flow

    NASA Astrophysics Data System (ADS)

    Xu, Jian-Jun; Yu, Dong-Sheng

    1998-11-01

    The interaction of convection and dendritic growth has been a subject of great interest in the area of material science in recent years. Theoretical studies of the steady dendrite growth in an external flow have been conducted by a number of authors, such as Ananth and Gill (1984); Ben Amar (1988), Bouisson and Pelce (1989); Saville and Beaghton (1989), etc., numerically and analytically. Their solutions, however, are not asymptotic expansion solutions. Their approaches do not allow to generate the next order approximations, nor give an estimation of the error between their solutions and the exact solutions. The first asymptotic, uniformly valid expansion solution was obtained by Xu (1994) in the limit of the Prandtl number Pr → ∞. Xu's solution may be well applied to the case that the flow velocity, U_∞, has the same order of magnitude as the growth speed of dendrite tip, U. It, however, will not give a good approximation when U_∞ >> U . The case of U_∞ >> U is, practically, important. It was just for this case that some recent experiments were performed. In this paper, we consider steady growth with zero surface tension in the case, U_∞ >> U and obtain a uniformly valid asymptotic expansion for the steady state solution in the whole growth region as ɛ = U/U_∞ → 0.

  7. Mechanisms of Mound Coarsening in Unstable Epitaxial Growth

    NASA Astrophysics Data System (ADS)

    Amar, Jacques G.

    1998-03-01

    A variety of recent experiments on semiconductor and metal surfaces have measured the mound coarsening behavior and coarsening exponent n (where the mound or feature size rc goes as h^n where h is the film thickness) during homoepitaxial growth. The value predicted by the simplest theories and observed in a number of growth experiments corresponds to n ~= 1/4, a value which is also close to that expected for the `quasi-equilibrium' coarsening of three-dimensional mounds via surface adatom exchange in the absence of deposition. However, asymptotic values as high as n ~= 1/3 have also been observed experimentally and have not been fully explained, although recent kinetic Monte Carlo simulations with a large Ehrlich-Schwoebel barrier footnote J.G. Amar and F. Family, Phys. Rev. B 44, 1224 (1996) lead to similarly large values for n. Here we present the results of a systematic study of the dependence of the asymptotic mound coarsening behavior on the rate of interlayer diffusion as well as on such processes as edge-diffusion, diffusion around kinks, and detachment. Our results indicate that all these processes play an important role in determining the asymptotic coarsening behavior. Results for the mound coarsening behavior in one-dimension, corresponding to highly anisotropic diffusion, will also be presented.

  8. Reaching extended length scales and time scales in atomistic simulations via spatially parallel temperature-accelerated dynamics

    NASA Astrophysics Data System (ADS)

    Shim, Yunsic; Amar, Jacques G.; Uberuaga, B. P.; Voter, A. F.

    2007-11-01

    We present a method for performing parallel temperature-accelerated dynamics (TAD) simulations over extended length scales. In our method, a two-dimensional spatial decomposition is used along with the recently proposed semirigorous synchronous sublattice algorithm of Shim and Amar [Phys. Rev. B 71, 125432 (2005)]. The scaling behavior of the simulation time as a function of system size is studied and compared with serial TAD in simulations of the early stages of Cu/Cu(100) growth as well as for a simple case of surface relaxation. In contrast to the corresponding serial TAD simulations, for which the simulation time tser increases as a power of the system size N (tser˜Nx) with an exponent x that can be as large as three, in our parallel simulations the simulation time increases only logarithmically with system size. As a result, even for relatively small system sizes our parallel TAD simulations are significantly faster than the corresponding serial TAD simulations. The significantly improved scaling behavior of our parallel TAD simulations over the corresponding serial simulations indicates that our parallel TAD method may be useful in performing simulations over significantly larger length scales than serial TAD, while preserving all the atomistic details provided by the TAD method.

  9. Simulation of XenArm Cluster Formation in a Molecular Beam: Comparison with Photoelectron Spectroscopy

    NASA Astrophysics Data System (ADS)

    Amar, Francois G.; Preston, Thomas J.

    2006-03-01

    We perform direct MD simulations of the formation of mixed XenArm clusters (500Amar, et al, JCP 122, 244717 (2005).

  10. Kinetic Simulations of Unsteady Vortex Structures in the Wake of a Cylinder

    NASA Astrophysics Data System (ADS)

    Arslanbekov, Robert R.; Kolobov, Vladimir I.; Frolova, Anna A.

    2008-12-01

    The development of an unsteady vortex street in the wake of a cylinder has been studied in computational experiments using recently developed Unified Flow Solver (UFS). A major objective was to investigate a spontaneous breakdown of flow symmetry in the wake and effects of gas compressibility and rarefaction on the laminar vortex shedding. The boundary of the wake instability on the (Kn, M) plane was found with a maximum at Kn˜0.01 for M˜0.6. We have used direct Boltzmann solver, gas kinetic compressible Navier-Stokes solver, incompressible GFS solver, and a hybrid kinetic/continuum UFS capability to analyze the appearance of oscillatory flow regimes. It was found that the wake becomes more stable as the free stream Mach number increases to sonic values. Effects of the flow solver (kinetic vs continuum, compressible vs incompressible) and of the size of computational domain on the Strouhal number were investigated. In all our cases, spontaneous breakdown of the flow symmetry took place without external perturbations. We believe that the procedure of Cartesian mesh cutting by a (curved) solid surface generated sufficient perturbations to break the symmetry of the flow. We compared our results with other simulations and experiments reviewed. It was found that the Adaptive Mesh and Algorithm Refinement (AMAR) procedure implemented in UFS works well for unsteady problems and offers substantial saving of computational time for complex flows with dynamically changing kinetic and continuum domains.

  11. Modeling spreading of nematic droplets

    NASA Astrophysics Data System (ADS)

    Lin, Te-Sheng; Cummings, Linda; Kondic, Lou

    2011-03-01

    Experiments by Poulard & Cazabat on spreading droplets of nematic liquid crystal reveal a surprisingly rich variety of behavior, including at least two different emerging lengthscales resulting from a contact line instability. In earlier work we modified a lubrication model for nematic liquid crystals due to Ben Amar and Cummings, and showed that, in a qualitative sense, it can account for much of the observed behavior. In the present work we propose a new approach, that allows us to explore the effect of anchoring variations on the substrate. This in turn gives a simple way to model the presence of defects, which are always present during such liquid crystal flows. The new model leads to additional terms in the governing equation. We first explore the influence of these additional terms for some simple flow scenarios, to gain a basic understanding of their influence, before extending our simulations to the experimental geometry and comparing our results to the experiments. This work was partially supported by NSF Grant No. DMS-0908158.

  12. Updating the lamellar hypothesis of hippocampal organization.

    PubMed

    Sloviter, Robert S; Lømo, Terje

    2012-01-01

    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.

  13. Monte Carlo Studies of Phase Separation in Compressible 2-dim Ising Models

    NASA Astrophysics Data System (ADS)

    Mitchell, S. J.; Landau, D. P.

    2006-03-01

    Using high resolution Monte Carlo simulations, we study time-dependent domain growth in compressible 2-dim ferromagnetic (s=1/2) Ising models with continuous spin positions and spin-exchange moves [1]. Spins interact with slightly modified Lennard-Jones potentials, and we consider a model with no lattice mismatch and one with 4% mismatch. For comparison, we repeat calculations for the rigid Ising model [2]. For all models, large systems (512^2) and long times (10^ 6 MCS) are examined over multiple runs, and the growth exponent is measured in the asymptotic scaling regime. For the rigid model and the compressible model with no lattice mismatch, the growth exponent is consistent with the theoretically expected value of 1/3 [1] for Model B type growth. However, we find that non-zero lattice mismatch has a significant and unexpected effect on the growth behavior.Supported by the NSF.[1] D.P. Landau and K. Binder, A Guide to Monte Carlo Simulations in Statistical Physics, second ed. (Cambridge University Press, New York, 2005).[2] J. Amar, F. Sullivan, and R.D. Mountain, Phys. Rev. B 37, 196 (1988).

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

    PubMed

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

    2009-01-01

    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.

  15. Thermographic diagnostics to discriminate skin lesions: a clinical study

    NASA Astrophysics Data System (ADS)

    Stringasci, Mirian Denise; Moriyama, Lilian Tan; Salvio, Ana Gabriela; Bagnato, Vanderlei Salvador; Kurachi, Cristina

    2015-06-01

    Cancer is responsible for about 13% of all causes of death in the world. Over 7 million people die annually of this disease. In most cases, the survival rates are greater when diagnosed in early stages. It is known that tumor lesions present a different temperature compared with the normal tissues. Some studies have been performed in an attempt to establish new diagnosis methods, targeting this temperature difference. In this study, we aim to investigate the use of a handheld thermographic camera to discriminate skin lesions. The patients presenting Basal Cell Carcinoma, Squamous Cell Carcinoma, Actinic Keratosis, Pigmented Seborrheic Keratosis, Melanoma or Intradermal Nevus lesions have been investigated at the Skin Departament of Amaral Carvalho Hospital. Patients are selected by a dermatologist, and the lesion images are recorded using an infrared camera. The images are evaluated taken into account the temperature level, and differences into lesion areas, borders, and between altered and normal skin. The present results show that thermography may be an important tool for aiding in the clinical diagnostics of superficial skin lesions.

  16. Informing a Tidal Turbine Strike Probability Model through Characterization of Fish Behavioral Response using Multibeam Sonar Output

    SciTech Connect

    Bevelhimer, Mark S.; Colby, Jonathan; Adonizio, Mary Ann; Tomichek, Christine; Scherelis, Constantin C.

    2016-07-31

    One of the most important biological questions facing the marine and hydrokinetic (MHK) energy industry is whether fish and marine mammals that encounter MHK devices are likely to be struck by moving components. For hydrokinetic (HK) devices, i.e., those that generate energy from flowing water, this concern is greatest for large organisms because their increased length increases the probability that they will be struck as they pass through the area of blade sweep and because their increased mass means that the force absorbed if struck is greater and potentially more damaging (Amaral et al. 2015). Key to answering this question is understanding whether aquatic organisms change their swimming behavior as they encounter a device in a way that decreases their likelihood of being struck and possibly injured by the device. Whether near-field or far-field behavior results in general avoidance of or attraction to HK devices is a significant factor in the possible risk of physical contact with rotating turbine blades (Cada and Bevelhimer 2011).

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

    NASA Astrophysics Data System (ADS)

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

    2009-01-01

    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.

  18. Indels ascertain the phylogenetic position of Coleodactylus elizae Gonçalves, Torquato, Skuk & Sena, 2012 (Gekkota: Sphaerodactylidae).

    PubMed

    Correia, Larissa Lima; Gamble, Tony; Landell, Melissa Fontes; Mott, Tamí

    2016-02-24

    The Neotropical gecko genus Coleodactylus Parker 1926 was, until recently, composed of five species: C. amazonicus (Andersson 1918), C. brachystoma (Amaral 1935), C. meridionalis (Boulenger 1888), C. natalensis Freire 1999, and C. septentrionalis Vanzolini 1980 (Geurgas et al. 2008). However, several phylogenetic analyses recovered a polyphyletic Coleodactylus (Geurgas et al. 2008; Gamble et al. 2011a) leading Gamble et al. (2011b) to recognize a new genus, Chatogekko, for C. amazonicus. Coleodactylus and Chatogekko differ in both morphological and molecular characters. Coleodactylus has smooth dorsal scales and five scales forming the ungual sheath, while Chatogekko has keeled dorsal scales and four scales forming the ungual sheath (Gamble et al. 2011b). Furthermore, all Coleodactylus species have two deletions in the protein coding recombination-activating gene 1 (RAG1), one of six base pairs (bp) and another of 18 bp (Gamble et al. 2008a; Geurgas et al. 2008), while Chatogekko has a unique three bp deletion in the RBMX gene and a three bp deletion in the protein tyrosine phosphatase nonreceptor type 12 gene (PTPN12) (Gamble et al. 2011b). In addition, Chatogekko is differentiated from all others geckos by a unique set of 10 craniofacial features (Gamble et al. 2011b).

  19. Homogenization limit for electrical conduction in biological tissues in the radio-frequency range

    NASA Astrophysics Data System (ADS)

    Amar, Micol; Andreucci, Daniele; Bisegna, Paolo; Gianni, Roberto

    2003-07-01

    We study an evolutive model for electrical conduction in biological tissues, where the conductive intra-cellular and extracellular spaces are separated by insulating cell membranes. The mathematical scheme is an elliptic problem, with dynamical boundary conditions on the cell membranes. The problem is set in a finely mixed periodic medium. We show that the homogenization limit u0 of the electric potential, obtained as the period of the microscopic structure approaches zero, solves the equation - div(σ 0∇ xu 0+A 0∇ xu 0+∫ 0tA 1(t-τ)∇ xu 0(x,τ) dτ- F(x,t))=0 where σ0>0 and the matrices A0, A1 depend on geometric and material properties, while the vector function F keeps trace of the initial data of the original problem. Memory effects explicitly appear here, making this elliptic equation of non standard type. To cite this article: M. Amar et al., C. R. Mecanique 331 (2003).

  20. Securing wide appreciation of health statistics

    PubMed Central

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

    1954-01-01

    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

  1. Lepidasthenia loboi sp. n. from Puerto Madryn, Argentina (Polychaeta, Polynoidae)

    PubMed Central

    Salazar-Vallejo, Sergio I.; González, Norma Emilia; Salazar-Silva, Patricia

    2015-01-01

    Abstract Among polychaetes, polynoids have the highest number of symbiotic species found living with a wide variety of marine invertebrates, including other polychaetes. Lepidasthenia Malmgren, 1867 and Lepidametria Webster, 1879 were regarded as synonyms but belong to different subfamilies, although both have species associated with thelepodid or terebellid polychaetes. In this contribution Lepidasthenia loboi sp. n. is described from several specimens associated with the thelepodid Thelepus antarcticus Kinberg, 1867, collected on a rocky shore near Puerto Madryn, Argentina. Lepidasthenia loboi sp. n. can be confused with Lepidasthenia esbelta Amaral & Nonato, 1982 because both live with Thelepus, are of similar sizes with similar pigmentation patterns, and have giant neurochaetae. However, in Lepidasthenia loboi sp. n. all eyes are of the same size, cephalic and parapodial cirri are tapered and mucronate, the second pair of elytra is larger than the third, the ventral cirri arise at the base of parapodia such that they do not reach chaetal lobe tips, and neuraciculae are tapered. On the contrary, in Lepidasthenia esbelta the posterior eyes are larger than anterior ones, cephalic and parapodial appendages are swollen subdistally, the second and third pairs of elytra are of the same size, the ventral cirri arise medially such that their tips reach the neurochaetal lobe tips, and the neuraciculae have falcate tips. Some comments about other genera in the Lepidastheniinae, a simplified key to its genera, and a key to Lepidasthenia species with giant neurochaetae are also included. PMID:26798303

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

    NASA Astrophysics Data System (ADS)

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

    2011-08-01

    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.

  3. The possible role of resource requirements and academic career-choice risk on gender differences in publication rate and impact

    NASA Astrophysics Data System (ADS)

    Zeng, Xiaohan; Duch, Jordi; Sales-Pardo, Marta; Radicchi, Filippo; Otis, Shayna; Woodruff, Teresa; Amaral, Luis

    2013-03-01

    Many studies demonstrate that there is still a significant gender bias, especially at higher career levels, in many areas including science, technology, engineering, and mathematics (STEM). We investigated field-dependent, gender-specific effects of the selective pressures individuals experience as they pursue a career in academia within seven STEM disciplines. We built a unique database that comprises 437,787 publications authored by 4,292 faculty members at top United States research universities. Our analyses reveal that gender differences in publication rate and impact are discipline-specific. Our results also support two hypotheses. First, the widely-reported lower publication rates of female faculty are correlated with the amount of research resources typically needed in the discipline considered, and thus may be explained by the lower level of institutional support historically received by females. Second, in disciplines where pursuing an academic position incurs greater career risk, female faculty tend to have a greater fraction of higher impact publications than males. Our findings have significant, field-specific, policy implications for achieving diversity at the faculty level within the STEM disciplines. L. A. N. Amaral gratefully acknowledges the support of NSF awards SBE 0624318 and 0830388, and ThomsonReuters for access to the WoS data. J. Duch and M. Sales-Pardo's work have been partially supported by the Spanish DGICYT under project FIS2010-18639.

  4. [Poliomyelitis in literature, cinema and television].

    PubMed

    Collado-Vázquez, Susana; Carrillo, Jesús M; Águila-Maturana, Ana M

    2014-10-01

    Introduccion. La poliomielitis es una enfermedad infecciosa cuyos sintomas iniciales son fiebre, cansancio, cefalea, vomitos, rigidez de cuello y dolores en los miembros. En muchos casos, las secuelas son paralisis irreversibles, y puede producirse la muerte si hay afectacion bulbar o respiratoria. Se describe tambien un conjunto de sintomas, llamado sindrome pospolio, que aparece años despues de la infeccion aguda. Objetivo. Analizar el abordaje que la literatura, el cine y la television han hecho de la poliomielitis. Desarrollo. Los escritores y los directores de cine y television han mostrado interes por la poliomielitis y la han reflejado de manera correcta y realista, tanto en las obras de ficcion como en las biograficas o de tipo documental. Nemesis, Secreto de hermanas, Que el cielo la juzgue u Oscura son algunos ejemplos de obras literarias. El cine ha mostrado la poliomielitis desde su epoca silente con titulos como The woman in his house, The Silver Streak, Amor sublime o Las sesiones. Tambien la television ha reflejado esta enfermedad y sus secuelas en series como Hospital Central, Anatomia de Grey, House o Amar en tiempos revueltos, y en telefilmes como El asunto, Eleanor y Roosevelt o Warm Springs. Conclusiones. La poliomielitis se ha mostrado en la literatura, el cine y la television de forma realista, presentando la sintomatologia, las secuelas, y el impacto personal, familiar y social de esta enfermedad.

  5. Presence of Serum Ferritin before and after Bariatric Surgery: Analysis in Dentate and Edentulous Patients

    PubMed Central

    Mosquim, Victor; Sales Peres, Matheus de Carvalho; Ceneviva, Reginaldo; Chaim, Elinton Adami

    2016-01-01

    Society has changed its own lifestyle, specially its eating habits and physical activities, leading to excessive weight and a sedentary behavior, which has contributed to obesity increase. Bariatric surgery is the most effective treatment to obesity, allowing weight loss and its maintenance. However, it has been related high levels of iron deficiency after surgery. A person’s nutritional status might be affected by total or partial tooth loss. The aim of this longitudinal prospective cohort study was to evaluate the levels of serum ferritin before and after bariatric surgery and to identify if there is a relation with tooth loss. The sample was composed of 50 patients selected and assisted at Amaral Carvalho Hospital, located in Jaú city, Brazil. The use and necessity of prosthesis, dental absence or presence, and serum ferritin dosage were evaluated. Student’s t test, Univariate analysis, Chi-square and Odds Ratio were adopted (p<0.05). There was no significant difference regarding the serum ferritin levels between dentate and edentulous patients prior to surgery (p = 0.436). After surgery, the serum ferritin levels were higher in edentulous patients (prosthesis users) when compared to the pre-surgical levels, and the post-surgical levels presented significant difference regarding the dentate patients (p = 0.024). It can be concluded that rehabilitated patients in postoperative period showed better levels of serum ferritin after surgical intervention. PMID:27695053

  6. Neutron Based Imaging and Element-mapping at the Budapest Neutron Centre

    NASA Astrophysics Data System (ADS)

    Kis, Z.; Szentmiklósi, L.; Belgya, T.; Balaskó, M.; Horváth, L. Z.; Maróti, B.

    The Budapest Neutron Centre (BNC) is a consortium of institutes to co-ordinate research activities carried out at the Budapest Research Reactor. It hosts two neutron imaging facilities (RAD and NORMA) operated by the Centre for Energy Research, Hungarian Academy of Sciences and offers access to this scientific infrastructure for the domestic and international users. The radiography station (RAD) at the thermal neutron beamline of the reactor gives a possibility to study relatively large objects by thermal neutron-, gamma- and X-ray radiography, and to benefit from the complementary features of the different radiations. RAD is being extended in 2014 with digital imaging and tomographic capabilities. The image detection is based on suitable converter screens. The static radiography and tomography images are acquired by a new, large area sCMOS camera, whereas the dynamic radiography is accomplished by a low-light-level TV camera and a frame grabber card. The NORMA facility is designed to perform neutron radiography and tomography on small samples using guided cold neutrons. Here two non-destructive techniques are coupled to determine the chemical composition and to visualize the internal structure of heterogeneous objects. The position-sensitive element analysis with prompt-gamma activation analysis (PGAA) and the imaging with neutron radiography/tomography (NR/NT) are integrated into a unique facility called NIPS-NORMA. The goal of such a combination of these methods is to save substantial beam time in the so-called NR/NT-driven PGAI (Prompt Gamma Activation Imaging) mode, in which the interesting regions are first visualized and located, and subsequently the time-consuming prompt-gamma measurements are made only where it is really needed. The paper will give an overview about the technical details of the facilities, and the latest results of selected applications from the fields of archaeometry, engineering and material science.

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

    NASA Astrophysics Data System (ADS)

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

    2011-03-01

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

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

    NASA Astrophysics Data System (ADS)

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

    2008-12-01

    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

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

    NASA Astrophysics Data System (ADS)

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

    2011-10-01

    affected by oblique (transpressional) convergence of continental blocks that formed eastern and western Gondwana—the pANS was approaching the Saharan Metacraton; north-trending shear and shortening zones developed in the southern ANS; and northwest-trending strike-slip shear zones of the Najd fault system dominated farther north. In the northwestern ANS, convergence and Najd transpression buckled the crust causing structural highs with domes of gneissic infracrust overlain by supracrust composed of ophiolitic and volcanosedimentary assemblages dating from the Tonian-middle Cryogenian period of island-arc activity. The supracrust was extensively translated to the northwest above a high-strain zone. Extension and tectonic escape augmented exhumation of the gneissic infracrust particularly between ˜620-580 Ma. In the northeastern ANS, linear belts of gneiss formed from reworked older intrusive bodies or syntectonic intrusions that were emplaced along Najd faults. By ˜620 Ma a marine basin on the eastern margin of the pANS (present coordinates) was beginning to close. A thick sedimentary assemblage (Abt formation) in this basin underwent metamorphism and folding, and subduction-related magmatism and volcanism farther into this basin (Al Amar arc; >690-615 Ma) was coming to an end. Amalgamation of the Abt formation, Al Amar arc, and the pANS occurred between ˜620 and ˜605 Ma, and terminal collision between the pANS and the Saharan Metacraton was complete by ˜580 Ma. At this time, the ANS was fully assembled. Granite magmatism continued until ˜565-560 Ma and orogeny ceased by ˜550 Ma. During these terminal events, the region underwent strong chemical weathering and became a vast low-relief surface on which Lower Paleozoic sandstone was eventually deposited.

  10. Reliability and interobserver variability in radiological patellar height ratios.

    PubMed

    Seil, R; Müller, B; Georg, T; Kohn, D; Rupp, S

    2000-01-01

    This study evaluated the reliability and interobserver variability of five patellar height ratios as measured by two examiners on standard radiographs: Insall-Salvati (IS), modified Insall-Salvati (MIS), Blackburne-Peel (BP), Caton-Deschamps (CD), and Labelle-Laurin (LL). Plain lateral radiographs with a knee flexion angle of 20 degrees for IS, MIS, BP, and CD ratios and 90 degrees for the LL method of 22 knees of 21 patients with varying pathological knee conditions were analyzed. Statistical results revealed a low interobserver variability with high correlation coefficients (0.86 for IS, 0.82 for MIS, 0.86 for BP, 0.92 for CD, and 0.81 for LL; P > 0.3) and low mean interobserver errors. However, regarding the reliability of the radiographic results of the different methods for patella alta, baja, or norma we found varying results in 68% of the patients. In two patients the patellar height was classified as alta, norma, or baja depending on the ratio used. Regarding the definitions of patellar height used by the authors of these methods, we found the lowest number of normal patellae with the IS ratio and no patella alta for the CD ratio. The LL method revealed the highest number of patella alta. The BP ratio showed intermediate results for both patella alta and baja, being the most moderate method. This study showed that there was a good interobserver reliability for the evaluation of patellar height according to the common radiological ratios. However, the high frequency of differing results between the different radiographic ratios showed that patellar height classification as "alta," "norma," or "baja" depends heavily on the chosen index. The differing results were due mainly to the normative patellar height data and to anatomical differences. Based on these findings we recommend a ratio using the articular surface of the patella in relation to the joint line. We recommend the BP method because it revealed the lowest interobserver variability and discriminated

  11. Observations of long-period Cepheids between l = 294 and 331 deg

    NASA Technical Reports Server (NTRS)

    Grayzeck, E. J.

    1978-01-01

    Photoelectric and spectroscopic observations of long-period Cepheids, as well as 21-cm profiles in the directions of these young stars, are presented for the Crux-Centaurus-Circinus-Norma section of the Milky Way. The UBV data have been used to revise periods and light-curve parameters and ultimately to calculate the distances of these stars. From the spectroscopic information velocity estimates have been made. Finally, the stellar velocities have been compared with H I gas motions detected along the same line of sight. These results are briefly discussed with a view to understanding the spiral structure of the region.

  12. Two southern SNR: G327.1-1.1 and Kes 27

    NASA Technical Reports Server (NTRS)

    Seward, F. D.; Kearns, K. E.; Rhode, K. L.

    1996-01-01

    Astronomical observations showed that the supernova remnants G 327.1-1.1 and the G 327.4+0.4 (Kes 27), located in the constellation Norma, are both irregular, filled-center X-ray sources with possible point sources superimposed. Rosat position sensitive proportional counter (PSPC) observations map the diffuse structure and show the unresolved sources in each field. Both remnants have bright emitting regions inside the limb, indicating the presence of high energy electrons accelerated by a pulsar. This energy bright interior region is more prominent in G 327.1-1.1 than in Kes 27.

  13. An Analytical and Experimental Investigation of Planar Discontinuities in Coaxial Waveguides.

    DTIC Science & Technology

    1981-03-01

    AOORESS(JI dflfeent Irm ConItlinhi Office) 1. SECURITY CLASS. (o tlis port) Unclassified OCAS FICATION/00OUNGRAING 0CEDULE ISi . OTS44NM4UIISTATE[ME[NT (at...PEAK AMP -5.749 o.479 % b -.164 x c - .534S5 9..3~ g.2 2 2 k -.8195~ h -SS3e FRONT PLATE co0. W M PmR5c o-t 0.0 .2 a. . . 1.0 bROO IUS NORMA ~LIZED BY

  14. Bearing Stake Coherence and Array Signal Gain Area Assessment Report

    DTIC Science & Technology

    1978-12-01

    IA 184 140 IB IS3 140 182 140 4 cxeept 4P-7 I6.45 140 41’ I S0..3 140 3 ISI .5 2tv all -cept 4117 . 2 2904pj". 7’ othc iermi.ohw, 41P, refers to pro...determined by the norma m1node program 4 at a frequenc% Of 50 liI. Propagation loss is shown as a function of rcceiver depth over the nmenral Of 2𔃺 to 3(AW in

  15. International Cosmic Ray Conference, 13th, University of Denver, Denver, Colo., August 17-30, 1973, Proceedings. Volume 5

    NASA Technical Reports Server (NTRS)

    1974-01-01

    An X-ray observation of the Norma-Lupus region, charge and isotope measurements of heavy cosmic ray nuclei and their role in the determination of cosmic ray age, and the possibility of a contribution to primary cosmic ray spectra from pulsars are among the topics covered in papers concerned with some of the results of recent cosmic ray research. Other topics covered include multiple scattering of charged particles in magnetic fields, absorption of primary cosmic rays in the atmosphere, and phase lag effects on cosmic ray modulation during a recent solar cycle. Individual items are announced in this issue.

  16. Hard X-ray observations of the region from the galactic center to Centaurus

    NASA Technical Reports Server (NTRS)

    Guo, D. D.; Webber, W. R.; Damle, S. V.

    1974-01-01

    A balloon flight from Parana, Argentina, was conducted to observe emissions from discrete or extended sources in the southern sky. The sources observed include GX 304-1, Nor X-2, GX 340+0, GX 354-5, a possibly composite source near the galactic center, and the nova-like source (2U1543-47) in the Lupus-Norma region which has been reported previously only in satellite observations. Data concerning the possibility of line emission near 0.5 MeV from different regions of the southern sky are also presented.

  17. Enplanement and All Cargo Activity

    DTIC Science & Technology

    1991-01-01

    YAKIMA AIR TERMINA YKN 65,576 $470.995 244 OR REDMOND ROBERTS FIELD RON 64,773 $466.820 245 IL BLOONINGTON/ NORMA BLOOMINGTON/NORMAL BNI 64,398 S464...CO DENVER CENTENNIAL APA 225 928 IL CHICAGO/WEST CHICAGO OUPAGE OPA 224 927 TX ANGLETON/LAKE JACKSO BRAZORIA COUNTY LBX 224 928 AK MANLEY HOT SPRINGS...REGI ALS 7.661 CO CORTEZ CORTEZ-MONTEZUMA COU CEZ 6.303 CO LAMAR LAMAR MUNI LAA 3.186 CO LAS ANIMAS CITY AND COUNTY 7V9 350 CO DENVER CENTENNIAL APA

  18. Directory of Solar-Terrestrial Physics Monitoring Stations.

    DTIC Science & Technology

    1984-09-06

    telescope, -lr Lhrreer- lshsoar i’age recode orrlilter and esltislit spectroglrapc for 0-alpa.. N-nn"a , s’nettTe: daio Di . apa Ca spectr.o RAW UTA...RULRR OBSERVING SCHEDULE ......... ..eq.lanNSR Ec hES.ulcION ...... apa Telescooe (Raldo ID), eyepiece, Ta INSTRUMENT DSVIFTION G..... Solan pnoospnric...counts by 10 done by electron. donitor 0 Id-uo~ter <its, a dgita me’. ics. norma integrating period I mn, norl c, 7 se-,o.aromTeCmr and an atonals c

  19. FAA Air Traffic Control Operations Concepts. Volume 7. ATCT (Airport Traffic Control Towers) Tower Controllers

    DTIC Science & Technology

    1989-04-21

    t.’, Vf~pS UWI * Jn0 Iji T~/ APA ’-1-5 3.C #? vALA" .,TI 21 IdRI .. ’tFb9 iYCiCKAflI TASK STATEMViENTS Courdinotion Icsk Number Tok !btotomjnt Media...HI Tl.4.9.7.i PERFORM TEE, Communicating Norma ~illy Air-To-Ground *clearance non-compliance query’§ TL.4.9.9 SUGGEST CLEARANCE ALTERNATIVES TO PILOT...Sarasota - Bradenton, Florida PWA Oklahoma City (Wiley Post ), Oklahoma APA Denvr (Centennial), Colorado COS Colorado Sprieigs, Colorado DAB Daytona

  20. Analysis of an Assemblage of Discs Employing Interactive Graphics.

    DTIC Science & Technology

    1980-12-01

    becu’It UI the iLc rementa I norma I and sheiar d isp I acement s is given by FC F C + ’,,tck n n n n s ss where cU F n the normal spring force K Fi= the...rssvabfore2 Cearh c all, t o MOT 1IUN ( i c c. , vrv 0 c l :sr ,,.); t 11 - Apa ; it 1it it’ln as shown in Figure "I. ex ists. 1o deL’ 111 erin 11 i ih eLe-1 i

  1. USAF Bioenvironmental Noise Data Handbook. Volume 130. A-7 Aircraft in the AF32A-19 and the AF32A-24 Noise Suppressors, Near and Far-Field Noise.

    DTIC Science & Technology

    1980-07-01

    Norma Peachey for assistance in typing this report. DTIC .... -i T ELECTE 1 FJ .OCT 2 11980 D B .1 . : .V t~to/ ... -;i,:’i i i ty Codas Avail and/or...a- a’ a a a a a aa ae aD -a 0 7 D- Oa 0 a’ a a 0- ad .7 ma ar -m a a 1- 0C 0A- aPa - Z. so t.J a/ a I 1 .JZ a) a) t a- a j ui ma w- 0 1- a L am VI L1

  2. Thermal Energy Storage and Heat Transfer Support Program. Task-1. Heat Transport System Study Copper-Water and Steel-Sodium DWAHP. Volume 1.

    DTIC Science & Technology

    1991-03-01

    cosO 3 APA , (g/g) p, d, sinO 4 R t e L e 4nr,. K. Be , I p, 5 R .,B 2nr., KO L, e, X’P- 6 R j L , e, 4 nr. Kv Be$ Xp, 7 RO L I II 27rr. K, B Xp . 8 Rt... norma circumstances, the condenser-end temperature should be close to the cold sink temperature. However, here it is seen to increase with the power input

  3. The Battle for Leyte Gulf. October 1944. Strategical and Tactical Analysis. Volume II. Operations from 0719 October 17th until October 20th (D- Day)

    DTIC Science & Technology

    1955-01-01

    invasion area. They further stated that the targets for the "submarines would norma ).ly be aircraft carriers, battleships and troop convoys, in that...comnosition of TF 79 transport groups ABLE and BAKER included thirty-eight vessels (26 AP/ APA , 8 AK/AKA, 1 APH and 3 AGC) that might have been reported as...TRANSDIV 24 (Temporaxy). Captain Brittain, Thomas B. APA ’. DuPAGE (FF), FULLER, ELMORE, WAYNE, AP JOHN LAND, AKA AQUARIUS, LSD GUNSTON HALL. (c) TU

  4. Proceedings of the Conference on the Stability and Dynamic Response of Rotors with Squeeze Film Bearings, 8-10 May 79.

    DTIC Science & Technology

    1979-01-01

    r in1 Whliol eat II Mode is norma ~ I i xk’d (tLwo op1)t i on s art to sct th I I~ t3Vt *amipLitudeu to I,or to requ ire N 11=I , anld no rmall I i xel...damp111ing apa CI M~ty of tluis type of rotor ,’ystern i s Ilimied and1( dif fil L o prediCLt, there fore, resonant vi hra-A tionus are potentIliallIV

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

    PubMed

    Hobbs, Jennifer

    2011-01-01

    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.

  6. A Screening Criterion for Delivered Source in Military Software. Volume 2. Appendices A through H

    DTIC Science & Technology

    1979-11-14

    79163-50 APPENDIX A SA14PLE CHANGE REQUEST 77I NADC-79163-50 DSCP CHANGE REQUEST - 45 Originator’s Name: Norma Stopyra Page 1 of 1 Module: DUBOOINS (SDG...1 o ISO a I a a 0 1 a a - 0 2 a a a a a a ~ 0 0 0 a 3i 1 0 a 00 0 a 0 0 2 a a0 a L0 a 0 0 0 0 9 a , a0 0 0 a u n * ~ a 0 0 ’ 0 0 0 _ 0 __0 0 * 1 i

  7. National Dam Safety Program. Powerville Dam (NJ-00174). Passaic River Basin, Rockway River, Morris County, New Jersey. Phase I Inspection Report.

    DTIC Science & Technology

    1979-06-01

    w h i c h i s less than 1000 a c t t ’ — t ~~e’t h u t iso i t’ t han 50 a c t e — t ’ ’ t , in acco i dance with ci i t c i i a iii von a n...indicate that . the darn has I e~1oe t ock I ounda— t I Oil h . Norma l Ojt’ i a t i ona l P r o cedu r e s . h’espons i I ’ i i t t y t o I opt ’ i

  8. USAF Bioenvironmental Noise Data Handbooks. F-16B In-Flight Crew Noise. Volume 146

    DTIC Science & Technology

    1979-08-01

    data processing and Mrs. Norma Peachey who typed this report and prepared it for publication. ;L ___ _ be" W 1 I H: III I - UnFUTM TABLE OF CONTENTS...1 I3 I w~~0 A 0 0 , I I * N . J . 0 * 0 C* 8) 0 5 I I z . 0 L) 12 4.5I D 80 A (e Ii f.1 1 0 . I cm W I 0 .J b’I~.0 0 Cr N .4%0O0 8..*~ ISO r N0goC Y

  9. Triaxial and Torsional Shear Test Results for Sand

    DTIC Science & Technology

    1994-06-01

    densest and loosest packing of particles without crushing the grains. The standard test methods ASTM D4253-83 and D4254-83 were used to determine the...desired value of J (J = = I( j.2/+ 2 was reached. The sample was then sheared with a constant value of J. The mean norma stress p was held constant while oz...Triaxial Testing System", Advanced Triaxial Testing of Soil and Rock, ASTM , STP77, 1988, PP95-106. Miura, K, Miura, S. and Told, S., "Deformation Behavior

  10. Aplicación del Teorema de Nekhorochev para tiempos de estabilidad en Mecánica Celeste

    NASA Astrophysics Data System (ADS)

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

    En Mecánica Celeste, uno de los problemas centrales consiste en la determinación de los tiempos de estabilidad. El teorema de Nekhorochev proporciona un método para dicho estudio, para un sistema determinado por un hamiltoniano descripto en las variables acción-ángulo. El trabajo consiste en la acotación 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 separación en norma infinito en el espacio de las acciones.

  11. Manganese distribution in the water column near the Azores Triple Junction along the Mid-Atlantic Ridge and in the Azores domain

    NASA Astrophysics Data System (ADS)

    Aballéa, Martine; Radford-Knoery, J.; Appriou, P.; Bougault, H.; Charlou, J. L.; Donval, J. P.; Etoubleau, J.; Fouquet, Y.; German, C. R.; Miranda, M.

    1998-08-01

    As part of a multidisciplinary research effort aimed at quantifying mid-ocean ridge processes near the Azores, we conducted a survey of the water column above the mid-Atlantic Ridge (MAR) in the vicinity of the Azores Triple Junction. Manganese is a tracer of hydrothermal activity intimately related to mid-ocean ridge processes. This paper reports on 23 vertical depth profiles that were analyzed for total dissolvable manganese (TDM). TDM inputs attributable to hydrothermal circulation could be observed along the MAR in all of the southern Amar (36°15'N), Famous (36°45'N), and Lucky Strike (37°03'N and 37°17'N) segments and south of the Kurchatov fracture zone (40°10'N). To date, seafloor observations of hydrothermal activity on the seabed have been confirmed at Lucky Strike (37°17'N) and at the Rainbow site (36°14'N). Large-scale TDM distribution features along the axial valley of the MAR include a decrease in TDM concentrations from south to north (36°N to 38°30'N), followed by an increase to 40°N. In the basins within the Azores archipelago, we found the lowest TDM background levels of this study (0.4-0.6 nmol l -1) and, based on our data, no firm evidence for hydrothermal inputs of TDM. In the MAR axial valley, we observe both a more elevated TDM background (0.5-1.0 nmol l -1) and evidence for probable hydrothermal TDM inputs. This suggests that hydrothermal inputs contribute to a low-level chronic TDM plume throughout the axial valley of the MAR between 36° and 40°N.

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

    NASA Astrophysics Data System (ADS)

    Hewage, Jinasena W.

    2014-06-01

    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.

  13. Optical Magnetometry

    NASA Astrophysics Data System (ADS)

    Budker, Dmitry; Kimball, Derek F. Jackson

    2013-03-01

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

  14. Deepwater mantle 3He plumes over the northern Mid-Atlantic Ridge (36°N-40°N) and the Azores Platform

    NASA Astrophysics Data System (ADS)

    Jean-Baptiste, P.; Fourré, E.; Dapoigny, A.; Charlou, J. L.; Donval, J.-P.

    2008-03-01

    As part of a multidisciplinary project aimed at studying mid-ocean ridge processes near the Azores, fifty water column profiles were analyzed for 3He/4He ratios in dissolved helium (a well-known hydrothermal tracer) from 36°N to 40°N along the Mid-Atlantic Ridge (MAR) and over the Azores Plateau. As expected, large δ3He anomalies could be observed over the Rainbow, Lucky Strike, and Menez Gwen hydrothermal sites. The main finding of the present study is the discovery of a large hydrothermal 3He plume north of the Açor Fracture Zone (north AFZ site), with a CH4/3He ratio indicative of a basaltic-hosted hydrothermal system. Clear 3He and CH4 anomalies, likely corresponding to unknown venting sites too, were also detected in the Amar Minor segment and south of the Kurchatov Fracture Zone. Evidence for substantial mantle helium degassing was also observed in the deep nodal basins along the Terceira Rift. On the basis of 3He plumes over the total length of the surveyed segments, the distribution of hydrothermal sites corresponds to a site frequency of 1.3 ± 0.2 site/100 km, in good agreement with the global vent field statistics of Baker and German (2004). For the Rainbow, Lucky Strike, and Menez Gwen sites, the application of a plume model based on the conservation of mass, heat, and momentum shows that the heat output computed by the model is only an estimation of the heat released by the focused part of the flow imputable to one single vent. Applied to the north AFZ venting site for which the height of the plume is not known precisely, the model does not allow us to discriminate between a Menez Gwen/Rainbow type of venting or a more focused vent complex such as the one observed at the TAG site (26°N).

  15. 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)

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

    2012-07-01

    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.

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

    USGS Publications Warehouse

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

    1983-01-01

    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.

  17. Considerations on Terrestrial Iron Depositing Analogs to Earliest Mars

    NASA Technical Reports Server (NTRS)

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

    2007-01-01

    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.

  18. Neuroanatomical differences in brain areas implicated in perceptual and other core features of autism revealed by cortical thickness analysis and voxel-based morphometry.

    PubMed

    Hyde, Krista L; Samson, Fabienne; Evans, Alan C; Mottron, Laurent

    2010-04-01

    Autism spectrum disorder is a complex neurodevelopmental variant thought to affect 1 in 166 [Fombonne (2003): J Autism Dev Disord 33:365-382]. Individuals with autism demonstrate atypical social interaction, communication, and repetitive behaviors, but can also present enhanced abilities, particularly in auditory and visual perception and nonverbal reasoning. Structural brain differences have been reported in autism, in terms of increased total brain volume (particularly in young children with autism), and regional gray/white matter differences in both adults and children with autism, but the reports are inconsistent [Amaral et al. (2008): Trends Neurosci 31:137-145]. These inconsistencies may be due to differences in diagnostic/inclusion criteria, and age and Intelligence Quotient of participants. Here, for the first time, we used two complementary magnetic resonance imaging techniques, cortical thickness analyses, and voxel-based morphometry (VBM), to investigate the neuroanatomical differences between a homogenous group of young adults with autism of average intelligence but delayed or atypical language development (often referred to as "high-functioning autism"), relative to a closely matched group of typically developing controls. The cortical thickness and VBM techniques both revealed regional structural brain differences (mostly in terms of gray matter increases) in brain areas implicated in social cognition, communication, and repetitive behaviors, and thus in each of the core atypical features of autism. Gray matter increases were also found in auditory and visual primary and associative perceptual areas. We interpret these results as the first structural brain correlates of atypical auditory and visual perception in autism, in support of the enhanced perceptual functioning model [Mottron et al. (2006): J Autism Dev Disord 36:27-43].

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

    NASA Astrophysics Data System (ADS)

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

    2009-12-01

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

  20. Quantitative ATP synthesis in human liver measured by localized 31P spectroscopy using the magnetization transfer experiment.

    PubMed

    Schmid, A I; Chmelík, M; Szendroedi, J; Krssák, M; Brehm, A; Moser, E; Roden, M

    2008-06-01

    The liver plays a central role in intermediate metabolism. Accumulation of liver fat (steatosis) predisposes to various liver diseases. Steatosis and abnormal muscle energy metabolism are found in insulin-resistant and type-2 diabetic states. To examine hepatic energy metabolism, we measured hepatocellular lipid content, using proton MRS, and rates of hepatic ATP synthesis in vivo, using the 31P magnetization transfer experiment. A suitable localization scheme was developed and applied to the measurements of longitudinal relaxation times (T1) in six healthy volunteers and the ATP-synthesis experiment in nine healthy volunteers. Liver 31P spectra were modelled and quantified successfully using a time domain fit and the AMARES (advanced method for accurate, robust and efficient spectral fitting of MRS data with use of prior knowledge) algorithm describing the essential components of the dataset. The measured T1 relaxation times are comparable to values reported previously at lower field strengths. All nine subjects in whom saturation transfer was measured had low hepatocellular lipid content (1.5 +/- 0.2% MR signal; mean +/- SEM). The exchange rate constant (k) obtained was 0.30 +/- 0.02 s(-1), and the rate of ATP synthesis was 29.5 +/- 1.8 mM/min. The measured rate of ATP synthesis is about three times higher than in human skeletal muscle and human visual cortex, but only about half of that measured in perfused rat liver. In conclusion, 31P MRS at 3 T provides sufficient sensitivity to detect magnetization transfer effects and can therefore be used to assess ATP synthesis in human liver.

  1. A multicentre study of antifungal strategies and outcome of Candida spp. peritonitis in intensive-care units.

    PubMed

    Montravers, P; Mira, J-P; Gangneux, J-P; Leroy, O; Lortholary, O

    2011-07-01

    Information on the species causing Candida peritonitis, their in vitro susceptibility, antifungal strategies in this setting and patient outcome is still scarce. AmarCand was a prospective, non-interventional study in 271 adult intensive-care unit (ICU) patients with proven invasive Candida infection who received systemic antifungal therapy (France, 2005-2006). Of these ICU patients, 93 (median age 65 years, simplified acute physiology score II 52) had Candida peritonitis, including 73 nosocomial peritonitis, 53 concomitant bacterial peritoneal infections and 26 candidaemias. Candida species were C. albicans (n = 63/108 isolates, 58%), C. glabrata (n = 22, 20%), C. krusei (n = 9), C. kefyr (n = 5), C. parapsilosis (n = 3), C. tropicalis (n = 3), C. ciferii (n = 2) and C. lusitaniae (n = 1). Of tested isolates, 28% were fluconazole-resistant or susceptible dose-dependent (C. albicans 3/32, C. glabrata 9/14, C. krusei 4/4). Empiric antifungal treatment was started 1 day (median) after peritonitis diagnosis, with fluconazole (n = 2 patients), caspofungin (n = 12), voriconazole (n = 3), amphotericin B (n = 2), or a combination (n = 4). Following susceptibility testing, empiric antifungal treatment was judged inadequate in 9/45 (20%) patients and modified in 30 patients (fluconazole was replaced by caspofungin (n = 14) or voriconazole (n = 4)). Mortality in ICU was 38% (35/93) and was not influenced by type of Candida species, fluconazole susceptibility, time to treatment, candidaemia, nosocomial acquisition, or concomitant bacterial infection. No specific factors for death were identified. In summary, a high proportion of fluconazole-resistant or susceptible dose-dependent strains was cultured. These results confirm the high mortality rates of Candida peritonitis and plead for additional investigation in this population. Antifungal treatment for severe cases of Candida peritonitis in ICU patients remains the standard care.

  2. The Norwegian Offender Mental Health and Addiction Study - Design and Implementation of a National Survey and Prospective Cohort Study.

    PubMed

    Bukten, Anne; Lund, Ingunn Olea; Rognli, Eline Borger; Stavseth, Marianne Riksheim; Lobmaier, Philipp; Skurtveit, Svetlana; Clausen, Thomas; Kunøe, Nikolaj

    2015-01-01

    The Norwegian prison inmates are burdened by problems before they enter prison. Few studies have managed to assess this burden and relate it to what occurs for the inmates once they leave the prison. The Norwegian Offender Mental Health and Addiction (NorMA) study is a large-scale longitudinal cohort study that combines national survey and registry data in order to understand mental health, substance use, and criminal activity before, during, and after custody among prisoners in Norway. The main goal of the study is to describe the criminal and health-related trajectories based on both survey and registry linkage information. Data were collected from 1,499 inmates in Norwegian prison facilities during 2013-2014. Of these, 741 inmates provided a valid personal identification number and constitute a cohort that will be examined retrospectively and prospectively, along with data from nationwide Norwegian registries. This study describes the design, procedures, and implementation of the ongoing NorMA study and provides an outline of the initial data.

  3. Head proportion and shape of the head of children between 2 and 7 years--results of a longitudinal study.

    PubMed

    Schüler, Grit

    2007-06-01

    Based upon a longitudinal anthropometric study with integrated picture documentation, the head proportion and head shape of two to seven years old children will be analysed. The study was initiated in April 2002 in the administrative districts of Potsdam and Potsdam-Mittelmark (Germany). 351 boys and girls have been measured and photographed. The children shall be examined up to four years until September 2006 with a half year investigation distance. Twenty-three anthropometric dimensions have been measured including six dimensions of the head. These dimensions of the head are the head length, head breadth, auricular height, interpupillary distance, facial height and lower face height. Furthermore, digital pictures have been taken of each child. So the head of each child can be examined in a frontal view (Norma frontalis) and in a lateral view (Norma lateralis) and will be analysed relating to changing proportions of the head. The results demonstrated and discussed here are based on a longitudinal succession of photos and point out a method to make individual patterns of the changing head proportions and head shape visual on pictures.

  4. Micropropagation of Codiaeum variegatum (L.) Blume and regeneration induction via adventitious buds and somatic embryogenesis.

    PubMed

    Radice, Silvia

    2010-01-01

    Codiaeum variegatum (L) Blume cv. "Corazon de oro" and cv. "Norma" are successfully micropropagated when culture are initiated with explants taken from newly sprouted shoots. The establishment and multiplication steps are possible when 1 mg/L BA or 1 mg/L IAA and 3 mg/L 2iP are added to MS medium, according to the cultivar respectively selected.Adventive organogenesis and somatic embryogenesis are induced from leaf explants taken from in vitro buds of croton. On leaf-sectioned of "Corazon de oro" cultured in vitro, 1 mg/L BA stimulates continuous somatic embryos development and induces some shoots too. Replacing BA with 1 mg/L TDZ induces up to 100% bud regeneration in the same explants. On the other hand, leaf-sectioned of C. variegatum cv. Norma does not start somatic embryo differentiation if 1 mg/L TDZ is not added to the MS basal medium. Incipient callus is observed after 30 days of culture, and then, subculture to MS with 1 mg/L BA allows the same process to show on the "Corazon de oro" cultivar. Somatic embryos show growth arrest that is partially overcome by transfer to hormone-free basal medium with activated charcoal. Root induction is possible on basal medium plus 1 mg/L IBA. Plantlets in the greenhouse have variegated leaves true-to-type.

  5. Tables of Probability of Damage Calculations for Point and Circular Normal Area Targets.

    DTIC Science & Technology

    1976-07-19

    ion was d F ’ s c r i E I i ’ d h~’ a c i r c u l a r norma l d i s t r i b u t i o n . The ,j o i f l t d i s t r i b u t i o n of t h e d i...F rem I h(? I - t n t I c ( I f a c i r c u l a r norma l d i s t r i b u t e d area whose ’ R95 r a d i u s i s one n a u t h e a l mile. The...C 5 5 5 5 - 5 5 5’_ = = = =II—’ 0 C CC CI CI C- ISI ~L i z LU ~~ ~ - - - - - - ‘ - - ( 1)4 ~U,. ~~ © PI F - C C - F - C I — I C ’ P ’ P F

  6. The Norwegian Offender Mental Health and Addiction Study – Design and Implementation of a National Survey and Prospective Cohort Study

    PubMed Central

    Bukten, Anne; Lund, Ingunn Olea; Rognli, Eline Borger; Stavseth, Marianne Riksheim; Lobmaier, Philipp; Skurtveit, Svetlana; Clausen, Thomas; Kunøe, Nikolaj

    2015-01-01

    The Norwegian prison inmates are burdened by problems before they enter prison. Few studies have managed to assess this burden and relate it to what occurs for the inmates once they leave the prison. The Norwegian Offender Mental Health and Addiction (NorMA) study is a large-scale longitudinal cohort study that combines national survey and registry data in order to understand mental health, substance use, and criminal activity before, during, and after custody among prisoners in Norway. The main goal of the study is to describe the criminal and health-related trajectories based on both survey and registry linkage information. Data were collected from 1,499 inmates in Norwegian prison facilities during 2013–2014. Of these, 741 inmates provided a valid personal identification number and constitute a cohort that will be examined retrospectively and prospectively, along with data from nationwide Norwegian registries. This study describes the design, procedures, and implementation of the ongoing NorMA study and provides an outline of the initial data. PMID:26648732

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

    SciTech Connect

    Ajello, M.; Reimer, O.; Rebusco, P.; Cappelluti, N.; Boehringer, H.; La Parola, V.; Cusumano, G.

    2010-12-20

    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.

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

    NASA Astrophysics Data System (ADS)

    Hailey, Chuck

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

  9. Galaxy Clusters in the Swift/BAT era II: 10 more Clusters detected above 15 keV

    SciTech Connect

    Ajello, M.; Rebusco, P.; Cappelluti, N.; Reimer, O.; Boehringer, H.; La Parola, V.; Cusumano, G.; /Palermo Observ.

    2010-10-27

    We report on the discovery of 10 additional galaxy clusters detected in the ongoing Swift/BAT all-sky survey. Among the newly BAT-discovered clusters there are: Bullet, Abell 85, 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 Abell 3667) 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 Abell 3667 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 thermal origin.

  10. The search for low-luminosity high-mass X-ray binaries and the study of X-ray populations in the Galactic disk

    NASA Astrophysics Data System (ADS)

    Fornasini, Francesca; Tomsick, John; Bodaghee, Arash; Rahoui, Farid; Krivonos, Roman; Corral-Santana, Jesus; An, Hongjun; Bauer, Franz E.; Gotthelf, Eric V.; Stern, Daniel; NuSTAR Galactic Plane Survey Team

    2016-01-01

    High-mass X-ray binaries (HMXBs), which consist of a neutron star (NS) or black hole (BH) accreting material from a massive stellar companion, provide valuable insights into the evolution of massive stars and the merger rates of NS/NS, NS/BH, and BH/BH binaries whose gravitational wave signatures will soon be detectable by facilities such as Advanced-LIGO. INTEGRAL discoveries of new classes of lower-luminosity HMXBs, some highly obscured and some showing extreme transient activity, as well as the recent discovery of the very quiescent and only known Be-BH binary, have considerably changed our understanding of clumping in massive stellar winds and the relative importance of different binary evolutionary channels. In order to better characterize the low-luminosity HMXB population, we have performed a survey of a square degree region in the direction of the Norma spiral arm with Chandra and NuSTAR. These surveys, combined with optical and infrared spectroscopic follow-up of the counterparts of hard X-ray sources, have yielded three HMXB candidates to date. Future radial-velocity follow-up of these candidates, as well as other Be HMXB candidates from the NuSTAR serendipitous survey, will help determine whether these sources truly are HMXBs and, if so, constrain the mass of the compact object in these systems. If confirmed, these HMXB candidates could extend our measurement of the HMXB luminosity function by about two orders of magnitude and provide important constraints on massive binary evolutionary models. In addition, the colliding wind binaries and pulsar wind nebulae discovered in the Norma X-ray survey will help shed light on other aspects of massive stellar evolution and massive stellar remnants. Finally, these surveys provide the opportunity to compare the hard X-ray populations in the Galactic disk and the Galactic Center. While the dominant hard X-ray populations in both of these Galactic regions appear to be cataclysmic variables (CVs), those in the Norma

  11. Photometric and Spectroscopic Survey of the Cluster [DBS2003] 156 Associated with the H II Region G331.1-0.5

    NASA Astrophysics Data System (ADS)

    Pinheiro, M. C.; Ortiz, R.; Abraham, Z.; Copetti, M. V. F.

    2016-05-01

    The Norma section of the Milky Way is especially interesting because it crosses three spiral arms: Sagittarius-Carina, Scutum-Crux and the Norma arm itself. Distance determinations of embedded young stellar clusters can contribute to define the spiral structure in this part of the Galaxy. However, spectrophotometric distances were obtained for only a few of these clusters in Norma. We present a photometric and spectroscopic study in the NIR of the [DBS2003] 156 stellar cluster, associated with the H II region G331.1-0.5. We aim to find the ionizing sources of the H II region and determine its distance. The cluster was observed in the J, H, and {K}{{s}} bands and eight potential massive stars were chosen among the detected sources according to color criteria; subsequent spectroscopy of these candidates was performed with the Ohio State Infrared Imager/Spectrometer spectrograph attached to the Southern Observatory for Astrophysical Research 4.1 m telescope. We identified and classified spectroscopically four early-type stars: IRS 176 (O8 V), IRS 308 (O-type), IRS 310 (O6 V), and IRS 71 (B1 Iab). Based on the proximity of IRS 176 and 308 with the radio continuum emission peaks and their relative positions with respect to the warm dust mid-infrared emission, we concluded that these two stars are the main ionizing sources of the H ii region G331.1-0.5. The mean spectrophotometric distance of IRS 176 and 310 of 3.38 ± 0.58 kpc is similar to that obtained in a previous work for two early-type stars of the neighbor cluster [DBS2003] 157 of 3.29 ± 0.58 kpc. The narrow range of radial velocities of radio sources in the area of the clusters [DBS2003] 156 and 157 and their similar visual extinction indicate that these clusters are physically associated. A common distance of 3.34 ± 0.34 kpc is derived for the system [DBS2003] 156 and 157. Based on observations obtained at the Southern Observatory for Astrophysical Research (SOAR), a joint project of the Ministério de Ci

  12. Molecular characterization of lysR-lysXE, gcdR-gcdHG and amaR-amaAB operons for lysine export and catabolism: a comprehensive lysine catabolic network in Pseudomonas aeruginosa PAO1.

    PubMed

    Madhuri Indurthi, Sai; Chou, Han-Ting; Lu, Chung-Dar

    2016-05-01

    Among multiple interconnected pathways for l-Lysine catabolism in pseudomonads, it has been reported that Pseudomonas aeruginosa PAO1 employs the decarboxylase and the transaminase pathways. However, up until now, knowledge of several genes involved in operation and regulation of these pathways was still missing. Transcriptome analyses coupled with promoter activity measurements and growth phenotype analyses led us to identify new members in l-Lys and d-Lys catabolism and regulation, including gcdR-gcdHG for glutarate utilization, dpkA, amaR-amaAB and PA2035 for d-Lys catabolism, lysR-lysXE for putative l-Lys efflux and lysP for putative l-Lys uptake. The gcdHG operon encodes an acyl-CoA transferase (gcdG) and glutaryl-CoA dehydrogenase (gcdH) and is under the control of the transcriptional activator GcdR. Growth on l-Lys was enhanced in the mutants of lysX and lysE, supporting the operation of l-Lys efflux. The transcriptional activator LysR is responsible for l-Lys specific induction of lysXE and the PA4181-82 operon of unknown function. The putative operator sites of GcdR and LysR were deduced from serial deletions and comparative genomic sequence analyses, and the formation of nucleoprotein complexes was demonstrated with purified His-tagged GcdR and LysR. The amaAB operon encodes two enzymes to convert pipecolate to 2-aminoadipate. Induction of the amaAB operon by l-Lys, d-Lys and pipecolate requires a functional AmaR, supporting convergence of Lys catabolic pathways to pipecolate. Growth on pipecolate was retarded in the gcdG and gcdH mutants, suggesting the importance of glutarate in pipecolate and 2-aminoadipate utilization. Furthermore, this study indicated links in the control of interconnected networks of lysine and arginine catabolism in P. aeruginosa.

  13. Dynamic Rupture Along a Material Interface With Creation of Off-fault Damage

    NASA Astrophysics Data System (ADS)

    Shi, Z.; Ben-Zion, Y.

    2004-12-01

    , 1995; Ben-Zion, 2001; Ranjith and Rice, 2002; Adda-Bedia and Amar, 2003). Another goal of our study is to find whether the creation of off-fault damage will provide a natural length scale for the wrinkle-like pulse and a mechanism that stabilizes the divergence in the purely elastic case. The results will provide an improved understanding of ruptures along a material interface, and important input for inferring from field observations the preferred propagation direction of ruptures along faults.

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

    NASA Astrophysics Data System (ADS)

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

    2006-12-01

    The Saldanha hydrothermal field is located at a non-transform offset (NTO5), between the FAMOUS and AMAR segments on the Mid-Atlantic Ridge (N36° 34'; W33° 26'). This field was discovered in 1998 during the Saldanha cruise (FCT, Portugal and IFREMER, France) and was revisited in 2001 during the Seahma cruise (FCT, Portugal) and in 2004 during the CD167 cruise (NOC, UK and FCT, Portugal). It is a serpentinite-hosted hydrothermal field and in situ observations revealed that hydrothermal vents are scarce and disseminated along the ocean floor over an area of approximately 400m2. Weakly venting fluids discharge through centimeter-sized orifices. Maximum fluid temperatures of 9° C were measured with the Victor ROV in 2001. Surface sediments have been collected from the Saldanha hydrothermal field in 1998, 2001 and 2004 and differences concerning mineralogy and geochemistry were recorded between these sediments. Mineralogy, whole sediment geochemistry and isotope ((δ 13C, δ 18O, Pb and Nd) data suggest geochemical variations in hydrothermal activity in this system. Hydrothermal activity is more strongly recorded in sediments collected in 2004, which are richer in sulfide mineralization and in hydrothermally- derived elements such as Cu, Zn, Fe, Co, Ni and S. In these sediments, rare earth elements (REE) patterns are characteristically derived from vent fluids, with enrichment in light REE and a pronounced positive Eu anomaly. The seawater-derived REE components in these sediments are low, as revealed by a small negative Ce anomaly. Lead isotopic ratios are typically less radiogenic in the youngest sediments when compared with the ones recorded in 1998 and 2001 sediments, demonstrating a negligible contribution of Pb from pelagic sediments. This is in agreement with neodymium isotope analyses indicating a smaller seawater contribution in the 2004 sediments. Oxygen isotope compositions (δ18OSMOW=6,59-11,63‰) of hydrothermal calcites present throughout the 2004

  15. Integrated thermal and geochemical export from a single vent-site: new constraints on axial hydrothermal fluxes.

    NASA Astrophysics Data System (ADS)

    German, C. R.; Amores Theme 1 Science Team

    2003-04-01

    During the first 25 years of hydrothermal research, more than 100 different sites of hydrothermal activity have been located, in all ocean basins and at all ridge-spreading rates. What has remained elusive, however, has been calculation of the total thermal and chemical fluxes emitted to the deep-ocean from any one vent-site. Here we combine long-term physical oceanographic investigations with detailed plume-process studies to calculate integrated physical and biogeochemical fluxes from the Rainbow hydrothermal field, 36N, Mid-Atlantic Ridge. The Rainbow vent-site is situated at a water depth of ca. 2300 m close to the NE limit of the S.AMAR segment, near 36^o12'N (ca.200nm SW of the Azores). This site, which is located at the intersection between the MAR rift-valley and a cross-cutting non-transform discontinuity, exhibits high-temperature venting hosted in serpentinised ultramafic rocks resulting in chemically distinctive fluid compositions (Douville et al., 2002). Our calculated fluxes from this study allow new constraints to be placed upon the partitioning of axial hydrothermal flow between focussed (geochemically enriched) high-temperature discharge and more "spent" diffuse axial flow. In terms of heat-flow, the global axial hydrothermal flux of ˜2.8 TW (Elderfield &Schultz, 1996) could be accommodated by ge1000 Rainbow-size vents at a net spacing of ca. 50-60 km around the global ridge-crest. By contrast, global geochemical fluxes of Fe, CH_4 and Cu could all be balanced if as little as ˜10% of the global axial heat-flux were provided by Rainbow-like systems. Because those tracers are all unusually enriched in vent-fluids at Rainbow, however, a more representative value is probably that obtained from a consideration of Mn, P, V &U fluxes. Those data all indicate balance if ˜33% of the global axial heat-flux occurs as Rainbow-like focussed flow. This would imply a total of ca. 400 large high-temperature vent-fields, worldwide, at spacings of 100-600 km

  16. A multiscale hybrid algorithm for fluctuating hydrodynamics

    NASA Astrophysics Data System (ADS)

    Williams, Sarah Anne

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

  17. Unstable Growth and Decay of Nanostructures on Crystalline Surfaces

    NASA Astrophysics Data System (ADS)

    Einstein, Theodore L.

    2001-03-01

    Instabilities during growth are typically attributed to the venerable [step] Ehrlich-Schwoebel effect (SESE), or closely related asymmetries(J.G. Amar and F. Family, Phys. Rev. Lett. 77), 4584 (1996) for atoms arriving at upper and lower sides of a step. Esp., SESE leads to the well-known Bales-Zangwill (BZ) instability of step edges. We have found(O. Pierre-Louis, M.R. D'Orsogna, and T.L. Einstein, Phys. Rev. Lett. 82), 3661 (1999) that an analogous in-plane asymmetry of the energy barriers at kinks for atoms moving along step edges, the kink Ehrlich-Schwoebel effect (KESE), can produce a new instability that can supplant the BZ instability. (The relevant edge and corner barriers can be calculated semiempirically; moreover, they can theoretically be tuned in electrochemical cells.(M.I. Haftel and T.L. Einstein, Proc. MRS 580), 195 (2000); Proc. ICSFS-10 (Princeton, 2000), Appl. Surface Sci.) We analyze various contributions to the mass current along the step. Monte Carlo simulations on a simple SOS model are used to illustrate behavior and distinguish between strong and weak KESE. The threshold of stable kink-flow growth is analyzed. KESE can induce mound formation, the orientation of which depends on the strength of the kink ES barrier. Such behavior was observed on Ag(100).(G. Costantini ldots U. Valbusa, Proc. ICSFS-10 (Princeton, 2000), Appl. Surf. Sci.; Surface Sci. 459), L487 (2000) Intriguing experiments observe wavelength selection during step-flow growth on vicinal Cu(100).(T. Maroutian, L. Douillard, and H.-J. Ernst, Phys. Rev. Lett. 83), 4353 (1999) KESE also can account for the instability of the Wolf-Villain model, in contrast to the similar Das Sarma-Tamborenea model.(P. Punyindu, Z. Toroczkai, and S. Das Sarma, preprint) At the coarse-grained level, the continuum step model can account for the decay of nanomounds on Si(7x7): the exponents of the decay rate and, more remarkably, the overall rate of these nanostructures (to within a factor of two

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

    USGS Publications Warehouse

    Menges, C.M.

    2008-01-01

    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

  19. 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)

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

    2009-01-01

    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

  20. Gradual aridification of the Sahara during the last 11,000 years revealed by plant wax δD analyses of Lake Yoa (Chad)

    NASA Astrophysics Data System (ADS)

    Rethemeyer, Janet; Kröpelin, Stefan; Karls, Jens; Thienemann, Matthias; Melles, Martin; Schefuß, Enno

    2014-05-01

    It is still an ongoing debate whether the transition of the last 'green Sahara' period to today's large desert during the Holocene, the African Humid Period (AHP), was a progressive or an abrupt change in hydrological conditions. Several climate records mainly from East Africa suggest a rapid decline of moisture availability at the end of the AHP including new data from a marine sequence off the Horn of Africa (Tierney & deMenocal, 2013). Other archives including sedimentological, geochemical and palynological data from the central North African Lakes Chad and Lake Yoa point to a gradual rather than an abrupt transition near 5,000 years ago (Amaral et al., 2013; Kröpelin et al., 2008). The discrepancy of the available paleo-hydrological reconstructions underline the importance of proxy parameters directly related to hydrological conditions for accurate assessment of continental rainfall changes. Here, we present the first molecular-isotopic data from Lake Yoa documenting the hydrologic evolution over the entire Holocene. Compound-specific carbon and hydrogen isotope analyses were performed on long-chain n-alkanes. Our data indicate relative high but variable contributions of plant-derived long-chain n-alkanes carrying a distinct leaf-wax signature, i.e., a high Carbon Preference Index (CPI). A trend towards higher CPI values since 7,300 years ago suggests declining soil degradation and vegetation cover under increasingly drier conditions. In parallel, the average-chain-length of the long-chain n-alkanes increases gradually towards the present implying higher relative contributions from grasses. Compound-specific carbon isotope data confirm this finding, indicating a mixed C3/C4 contribution in the early and mid-Holocene changing towards a C4-grass dominated vegetation in the late Holocene. Most importantly, compound-specific hydrogen isotope data reveal a continuous increase from 8,100 years ago towards the present, reflecting a gradual aridification. The large

  1. A lead isotope study of mineralization in the Saudi Arabian Shield

    USGS Publications Warehouse

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

    1980-01-01

    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

  2. Nutritional status of patients with gastrointestinal cancer receiving care in a public hospital; 2010-2011.

    PubMed

    Dias do Prado, Corina; Alvares Duarte Bonini Campos, Juliana

    2013-01-01

    Objetivo: Identificar el estado nutricional de los pacientes con cáncer gastrointestinal y verificar su asociación con características demográficas y clínicas. Métodos: Se realizó un estudio transversal, con un diseño de muestreo no probabilístico. Los participantes fueron 143 pacientes adultos con cáncer gastrointestinal, que reciben atención en el Hospital Amaral Carvalho (Jaú-SP, Brasil) entre noviembre de 2010 y octubre de 2011. Se realizó una encuesta para recoger información con el fin de caracterización demográfica y clínica. Para identificar el estado nutricional se aplico la Valoración Subjetiva Global - Generada por el Paciente Score (VSGGP score). La razón de prevalencia (RP) fue estimada. El nivel de significancia adoptado fue de 5%. Resultados: La edad media de los pacientes fue de 57,45 (DE = 9,62) AÑOs, con los estadíos III y IV de la enfermedad es la más frecuente (39,2% y 35,0%). Había 44,8% de prevalencia de la malnutrición. La persona desnutrida tenía problemas más frecuentes para comer. La estadística descriptiva y la prueba de Chi-cuadrado (< 0,001), presentaron menor deseo de comer (p < 0,001), más náuseas (p = 0,001), vómitos (p = 0,006), estreñimiento (p < 0,001) y dolor (p < 0,001) que los pacientes eutróficos y se declararon enfermos por el olor de los alimentos (p = 0,012), dificultad para tragar (p = 0,002) y la saciedad precoz (p = 0,020) com más frecuencia. En cuanto a la proporción de prevalencia, se observó una probabilidad mayor de individuos desnutridos expuestos a una porción más grande de los síntomas relacionados en la puntuación VSG-GP score. Conclusión: La alta prevalencia de desnutrición se observó en pacientes con cáncer gastrointestinal, con asociación significativa con los síntomas clínicos directamente relacionados con el proceso de alimentación.

  3. The interactive effect of personality, time of day, and caffeine: a test of the arousal model.

    PubMed

    Revelle, W; Humphreys, M S; Simon, L; Gilliland, K

    1980-03-01

    The personality dimension of introversion/extraversion is one of the few personality dimensions that can be reliably identified from study to study and investigator to investigator. The importance of this demension within personality theory is due both to the stability of the trait and the influential theory of H. J. Eysenck. The basic assumption in Eysenck's theory of introversion/extraversion is that the personality differences between introverts and extraverts reflect some basic difference in the resting level of cortical arousal or activation. Assuming that there is a curvilinear relationship (an inverted U) between levels of stress and performance leads to a test of this arousal theory. That is, moderate increases in stress should hinder the performance of introverts who are presumably already highly aroused. However, the same moderate increase in stress might help the performance of the presumably underaroused extraverts. Revelle, Amaral, and Turriff reported that the administration of moderate doses of caffeine hindered the performance of introverts and helped the performance of extraverts on a cognitive task similar to the verbal test of the Graduate Record Examination. Assuming that caffeine increases arousal, this interaction between introversion/extraversion and drug condition supports Eysenck's theory. This interaction was explored in a series of experiments designed to replicate, extend, and test the generality of the original finding. The interaction between personality and drug condition was replicated and extended to additional cognitive performance tasks. However, these interactions were affected by time of day and stage of practice, and the subscales of introversion/extraversion, impulsivity, and sociability, were differentially affected. In the morning of the first day, low impulsives were hindered and high impulsives helped by caffeine. This pattern reversed in the evening of the first day, and it reversed again in the evening of Day 2. We

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

    NASA Technical Reports Server (NTRS)

    Shklovskiy, I. S.

    1978-01-01

    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.

  5. Achieving skin to skin contact in theatre for healthy newborns.

    PubMed

    2015-06-01

    The evidence base is supportive of early skin to skin contact (SSC) for optimal newborn-physiological adaptation, bonding and breastfeeding, and national guidelines encourage SSC as soon as possible, regardless of mode of birth. With an ever-rising caesarean (CS) rate, implementing SSC in theatre stands to benefit an increasing number of mothers and babies. While it may be best practice, in reality there is a lot of variation from trust to trust, and many hospitals do not facilitate it, citing numerous reasons as to why it is not possible. Midwives may feel that they should focus on norma birth, but it is our role to provide holistic care and normalise birth in all settings. This article looks at current evidence and the role of the midwife around facilitating SSC in theatre with an example from practice of how change has been implemented so that mothers and babies get the best start in life.

  6. Impact of Structural Damping Nonlinearity in Transonic Limit Cycle Oscillations (LCO)

    DTIC Science & Technology

    2005-09-01

    eaietrinlage("l )rcre nteDRwn tunnel fo a. norma foc;fIN 67 d).025.60 Fig 3.1 7otiue 68 0.04 0.01 0,005 0 -0.005-" .-0.01 9 0 0.5 1 1.5 2 2.5 3 3.5 4 Quasi...Viscous Friction," Trans. of the ASME , APM-53-9, 1931, pp. 107-115. 17Pesheck, E., and Pierre, C., "Phase Space Interpretation And Stability Analysis Of A...Self Excited, Friction Damped Turbine Airfoil," Proceedings of the ASME Design Engineering Technical Conferences, DETC97NIB-3913, 1997. ൚Agelastos

  7. Self-Organized Criticality Systems

    NASA Astrophysics Data System (ADS)

    Aschwanden, M. J.

    2013-07-01

    Contents: (1) Introduction - Norma B. Crosby --- (2) Theoretical Models of SOC Systems - Markus J. Aschwanden --- (3) SOC and Fractal Geometry - R. T. James McAteer --- (4) Percolation Models of Self-Organized Critical Phenomena - Alexander V. Milovanov --- (5) Criticality and Self-Organization in Branching Processes: Application to Natural Hazards - Álvaro Corral, Francesc Font-Clos --- (6) Power Laws of Recurrence Networks - Yong Zou, Jobst Heitzig, Jürgen Kurths --- (7) SOC computer simolations - Gunnar Pruessner --- (8) SOC Laboratory Experiments - Gunnar Pruessner --- (9) Self-Organizing Complex Earthquakes: Scaling in Data, Models, and Forecasting - Michael K. Sachs et al. --- (10) Wildfires and the Forest-Fire Model - Stefan Hergarten --- (11) SOC in Landslides - Stefan Hergarten --- (12) SOC and Solar Flares - Paul Charbonneau --- (13) SOC Systems in Astrophysics - Markus J. Aschwanden ---

  8. Assessment of Tactical Sonobuoy Computer Programs for Environmental Software Systems.

    DTIC Science & Technology

    1981-02-01

    liLiAf U c I 4)(jtjt)1 Dcn’iit I~tionU1S 1: f\\ ’’n ;accdl [positionsl N iitoi ll Tin)L-dnpejenlt x U2i ’ itL ati ornial x 1,-p’ii ndih’ norma ~a N Nia...8217ASJ)A 4- 4-4-4 PATTERN 0S1\\ 0-1 4± + 0 44S - -49 22 I.fil i) -I I,,, - . o’ I :I ili tN, of I)etection Im. SccwlriiI I I S APA 7 I~~~~ L1 II I( I7

  9. United States Air Force High School Apprenticeship Program. 1990 Program Management Report. Volume 4

    DTIC Science & Technology

    1991-04-18

    WELL AS HIS TIME AND ASSISTANCE. MY PROJECT WOULD NOT HAVE BEEN POSSIBLE WITHOUT THE COMPUTER TRAINING I RECEIVED 3 FROM MR. BILLY JACKSON, MRS. NORMA ...1 120 GAIN: 2 120 GAIN: 3 120 GAIN: 4 OVER ADJUST % 0.0 I 5 114-95 I Thursday, May 17 1 14:15 LACKLAND A.F.B. 5 1 M902179 L APA 87.0 MG/DL 1:36 L APR...76.8 MG/DL 1:36 L APA 77.5 MG/DL 1:36 I LEFT: APA CALIBRATED TO 96.8 MG/DL R APA 65.9 MG/DL 1:36 R APA 60.8 MG/DL 1:36 R APA 60.9 MG/DL 1:36 RIGHT

  10. United States Air Force Statistical Digest, Fiscal Year 1951. Sixth Edition

    DTIC Science & Technology

    1952-11-18

    Capacit1’ No"""- Occupied Dot in Norma ’- Occupied lormaJ. Ocoupbd No"""- Oooupied lormaJ. OCcupied 10"""- Oocupl.d Capll.cltT or Uss tor Cllp801tJ’ or...e. 13 8,853 - 13 8,853 - - - Panoramic Adaptor, APA -41 •• "•••••• " ••• •• 6 17,456 - 6 17,456 . - - Radio Ccapasll, AN/crP.P-7...191 4,735,995 - 191 4,735,995 - - - A1rbOl’Dll DF :Ju1pmtent, AN/ APA -24 •••••••• •• 6 75,848 - 6 75,846 - - - Radar Set, All APQ-43 and

  11. Systems Integration: RNAV and the Upgraded Third Generation System.

    DTIC Science & Technology

    1976-12-01

    t that time ) • Tvi i i d 1 approach speeds of t ’,i~ h a u r i t a f t I • I XPP C It ’d n~rnua I * M~~ and 4I~ M&S Al C ~ t m-fonmman ce c apa ...radar Vor t tw ) t.ra f l~ iild y he iii x-d fret’ ly in a rm M&S env i ronmuien C.. • Arr i va I t u mu mo ( O f i t ro I apa b m Ii ty ot M&5 (tI sOt...i sp lay could he integrated with the RNAV computer and could allow direct input of impromptu waypo I nt data to the RNAV . This message norma l ly

  12. Economic Evaluation and Assessment. Physical Evaluation and Assessment, South Cheyenne Area, Cheyenne, Wyoming

    DTIC Science & Technology

    1985-10-01

    IJ.SvXN~n 1W Ak PON?~ba W DC 2340-2iO Or cuis.r Paw Ate- * 0 d 4Vt,$4 S bf~q#A Ar q4AV4b 0 APA ~od .1A AjG,. a o*41 DSK =7-29n JL 1 ’𔄃 3 9: 31 702...MAIS: 7501 G/MO., 418 ITM, NORMA WOAD , 1.7 102 1653 $1.61 -5301752 L. I$II. \\ 13sf $1.3 - 12\\O 15 Ayd $1.4 -n AN i ~ 1.0 / W $0.7 547 o $0.5- $0.3-4

  13. Archaeological Survey Within Designated Portions of the Proposed Len Small Floodway in Dogtooth Bend, Alexander County, Illinois

    DTIC Science & Technology

    2005-01-01

    tlM.Np M.MNM.aa M .aIIM,p 1 ..p m NEaRm . .N..Mmmmv.v.IN,.W. .MM . . .N ....I .MM.INN MM.. norma Eir _ama mum .M.Y NMmpNmmp.I.1. .N or .M.1 .laM...PY•ANNPNVf ...1•.W1NANV.. PNMNff PP /PN•N/AMAWA NN NW. HAPWWtl f•.R .•N1PW.tl/vxPW1W1W/ ... APA HWWII•NN•• ....A1M.. ••1.AA1.111.1 P _]MiN...Mm• AY .m.MNmmNMM./mtlMM MAWNp AMPAWxNVWOWMmPAMPA x.vvW Niiii .NA1VWWm1•NN: CMN mWMpm /fAMWY maroonsAmur.. MEP AMP. APA ~MWMA/AWtl/MNMu

  14. INM Integrated Noise Model Version 2. Programmer’s Guide

    DTIC Science & Technology

    1979-09-01

    USED. THE NORMA ! RETURN IS AT TINE 11 AND IS USED C IF THE RET.RN AT TINE S IS ICT USED. C THE VAPTBLE Tv I1 1BELED C).3CN BLOCK/ASDS23/IS SET EQUAL...Y tSi’MIS WE P~ APA " l r TB POIVTIJF. lI?. 1-1 -,TC**’ ASSIG! F.WrS POP EACH TRACK. /411W vr VIN-) V!-1:CcTTY (KXCTS) F’OR EACH GRUP r j~l-’ 7in Dri...DESCRIPTION C /RtINWAY/ APALT AIRPCOT ALTITUDE ABOVE MEAN SEA LEVLE. C /R’TFVAY/ APA !I AIPPORT ALTITUDE ArO"VE MEAN SEA LEVLE. C .1PT ElAP AVERAGE

  15. U. S. Army Medical Research and Development Technical Report

    DTIC Science & Technology

    1978-09-30

    aw*o m .m-M~ Was RESEAR~lM . T20010LOCY WOK UWT SMAN DA OE 6081 178 10 01 0D& Apa F77 10 0 1 14.Tersinat io4 U, NJ Ls."NO 62772A~T JI62772Abll1 i IX~tW...the aPa :1 -nd need- their !’’n. his ur.-.op mill ill Ococl;’ lnf ,.iticn re- * . i.~Ie *%.~* ~trill ’n. ’j.eq -,- n"T’lj an? lo-osat hu’andrT -ehodr...myocardial oxygei transport dynamics wil: be assessed to determiŘ the ability nf newly developoid blood ..ubstitutes to support norma ~l tinsu;e fu;nction. 25

  16. Government Contract Law Cases.

    DTIC Science & Technology

    1983-10-01

    u 1 a r rity by ures th 7, 11 L se invo uspendi necess s norma the ex liable is judg d i v i d u a Having end i t ages if sense o e 1...ency ti ce Hear i i s pr estab ear i n ervic e, 345 U the secu the hear e Attorn ), the A esi gned ot perfo . 5 U.S the APA ible to... APA heari ng. Tv. 3-124 ’•*.v>’’.vCv.>:.yis ••’>:-’v\\>’’»i.,/v-/.-.-.- .»•••••••.- • —— — —^— — ——^—•—-—* * - • * « % ~ ^ i «- i, *,. *, .v

  17. In situ performance curves measurements of large pumps

    NASA Astrophysics Data System (ADS)

    Anton, A.

    2010-08-01

    The complex energetic system on the river Lotru in Romania comprises of a series of lakes and pumping stations and a major hydroelectric power plant: Lotru-Ciunget. All the efforts have been oriented towards the maintenance of the Pelton turbines and very little attention has been directed to the pumps. In the system, there are three large pumping stations and only in the last 5 years, the pump performances have become a concern. The performances where determined using portable ultrasonic flow meters, a Yates meter, precision manometers and appropriate electrical equipment for power measurement (Power Analiser - NORMA D4000 LEM). The measurements are not supposed to interfere with the normal operation so only a limited number of tests could be performed. Based on those tests, portions of the test curves have been measured and represented in specific diagrams.

  18. Differences between direct (anthropometric) and indirect (cephalometric) measurements of the skull.

    PubMed

    Farkas, Leslie G; Tompson, Bryan D; Katic, Marko J; Forrest, Christopher R

    2002-01-01

    This study sought to determine the relative reliability of indirect cephalometric measurements and direct anthropometric ones taken in norma frontalis of 25 dry adult human skulls. Six of the 11 linear projective measurements were singular and located in the orbital, middle, and lower parts of the face, with two from each part. Two of the five paired measurements were taken in the orbital region on both sides, and the other three were taken in the middle to lower face between the midpoint of the facial axis and the landmarks lateral to it. Both singular and paired cephalometric distances were significantly shorter than the anthropometric distances. Mean numerical differences were much greater in paired measurements than in singular ones. The differences between these two sets of findings are a result of the uneven position of the landmarks used for measurement, located, as they are, on different planes of the face. These differences are undetectable by two-dimensional cephalograms.

  19. Explosive Fragmentation of Dividing Walls

    DTIC Science & Technology

    1981-07-01

    their assistance in conducting the experiments and to Mlles. Donna K. Watiters and Norma Sandoval for their assistance in reducing the data. A1...SUPPORTED 102 10 -64 3.51 10 11 SIDE SU~PPORTED Rs 5.03 +TO swSYMBOL RS T - 3.51 kg/rn 1 2 A 2 2 r a0.60 2. 3 13.143. ISO . 158. 16.5. 173. 180, 188, 195...T Test Spac ing Thickness W R ISO . (ms o (g i) uwr 20 25.4 80.96 0.454 0.146 Wall is cracked at the base and at both side restraints but did not shear

  20. Observations of the X-ray burst source MXB 1636-53

    NASA Technical Reports Server (NTRS)

    Hoffman, J. A.; Lewin, W. H. G.; Doty, J.

    1977-01-01

    X-ray bursts have been observed from MXB 1636-53, almost certainly associated with the strong steady X-ray source 2S 1636-536 (Norma X-1, 3U 1636-53). The steady source was observed in January 1977 at roughly half the intensity reported in the 3U catalog and showed about 15% variability on a time scale of hours. The spectra of the X-ray bursts are well fitted by blackbody radiation whose temperature rises rapidly to a maximum of approximately 28 million K and then cools slowly. If the source is at a distance of 10 kpc, the radius of the projected burst emission region is about 10 km, similar to the size of a neutron star.

  1. Scena propylea (Druce) (Lepidoptera: Erebidae) an endemic species of Mexico.

    PubMed

    Hernández-Baz, F; Coates, R; Teston, J A; González, J M

    2013-06-01

    A revision of the bibliography, as well as an analysis on the data from the specimen labels of Scena propylea (Druce) (Erebidae: Arctiinae: Euchromiina) deposited in different scientific collections, was carried out and included information from 1894 to 2010. Its geographical distribution is restricted to the Trans-Mexican Volcanic Belt which determines this species as endemic. Data are provided on the biogeography, ecology and biology for this species. Its food plant is Thenardia floribunda (Apocynaceae) which is also endemic to Mexico. From this analysis, we propose the inclusion of both species in the document known as the Norma Oficial Mexicana 059 which encompasses the environmental protection of wild flora and fauna species native to Mexico and their risk categories, as well as the specifications for their inclusion, exclusion or change and a list of all species at risk.

  2. [IMPLEMENTATION OF A QUALITY MANAGEMENT SYSTEM IN A NUTRITION UNIT ACCORDING TO ISO 9001:2008].

    PubMed

    Velasco Gimeno, Cristina; Cuerda Compés, Cristina; Alonso Puerta, Alba; Frías Soriano, Laura; Camblor Álvarez, Miguel; Bretón Lesmes, Irene; Plá Mestre, Rosa; Izquierdo Membrilla, Isabel; García-Peris, Pilar

    2015-09-01

    Introducción: la implantación de sistemas de gestión de calidad (SGC) en el sector sanitario ha presentado un gran avance en los últimos años, siendo una herramienta clave para la gestión y la mejora de los servicios ofrecidos a los pacientes. Objetivo: describir el proceso de implantación de un SGC según la Norma ISO 9001:2008 en una unidad de nutrición. Material y métodos: el proceso comenzó en octubre de 2012. Se contó con la asesoría del servicio de medicina preventiva y gestión de calidad (MPGC) del hospital. Al inicio se realizaron sesiones formativas sobre SGC y normas ISO para el personal. Se instauró un comité de calidad (CC) con representación del personal facultativo y de enfermería. Semanalmente, se reunían los miembros del CC y del servicio de MPGC para definir los procesos, los procedimientos y los indicadores de calidad. Antes de validarlos se probaron durante dos meses. Resultados: se identificaron y documentaron un total de 4 procesos (Valoración del estado nutricional, Indicación de tratamiento nutricional, Seguimiento del tratamiento nutricional y Planificación y control de la alimentación oral) y 13 procedimientos operativos donde quedó recogida toda la actividad de la unidad. Las interacciones entre ellos quedaron definidas en el mapa de procesos. En cada uno de los procesos se identificaron indicadores de calidad para medir el estado del SGC y detectar oportunidades de mejora. Se desarrollaron todos los documentos asociados a requerimientos de la Norma ISO 9001:2008: política de calidad, objetivos de calidad, manual de calidad, procedimiento de control de la documentación y registros, de auditoría interna, de no conformidad y de acciones correctivas y preventivas. La unidad obtuvo la certificación de AENOR en abril de 2013. Conclusiones: la implantación de un SGC supone hacer una reflexión sobre las actividades que realiza la unidad con el objetivo de satisfacer las expectativas de los usuarios que demandan

  3. Investigating methods of improving SSM/I and OKEAN sea ice inversion parameters using MLP neural networks with different learning algorithms.

    NASA Astrophysics Data System (ADS)

    Belchansky, G.; Alpatsky, I.; Mordvintsev, I.; Douglas, D.

    from microwave data, we used the MLP neural network with the error back propagation and simulated annealing. Results of the OKEAN classifications indicated that the modified back-propagation neural network was more efficient than linear mixture modeling when estimating ice-type concentrations in transition zones between OW and FY ice and between FY ice and MY ice. Using the MLP neural network with the error back propagation and simulated annealing, the SSM/I brightness temperatures, OKEAN MY and ERS MY sea ice learning data sets, Arctic MY sea ice maps for each month were developed during April 1996 through August 1996. ACKNOWLEDGEMENTS This work was carried out with the support from the International Arctic Research Center and Cooperative Institute for Arctic Research (IARC/CIFAR), University of Alaska Fairbanks. We would like to acknowledge the Alaska SAR Facility (Fairbanks), the National Snow and Ice Data Center (University of Colorado), and the Global Hydrology Resource Center, respectively, for providing RADARSAT images, the DMSP SSM/I Daily Polar Gridded Tb and Sea Ice Concentrations, the single-pass SSM/I brightness temperature data. REFERENCES Belchansky, G. I. and Douglas, D. C. (2000). Classification methods for monitoring Arctic sea-ice using OKEAN passive / active two-channel microwave data. J. Remote Sensing of Environment, Elsevier Science, New York. 73 (3): 307-322. Belchansky, G. I. and Douglas, D. C. (2002). Classification methods for monitoring Arctic sea-ice using OKEAN passive / active two-channel microwave data. J. Remote Sensing of Environment, Elsevier Science, New York 81 (1): 67-81. Chen, K. S., Huang, W. P., Tsay, D. H., and Amar, F. (1996). Classification of Multifrequency Polarimetric SAR Imagery Using a Dynamic Learning Neural Network, IEEE Trans. Geosci. Remote Sensing, 34 (3): 814-820.

  4. Older Smooth Plains on Mercury Obscured by Impact Features

    NASA Astrophysics Data System (ADS)

    Byrne, P. K.; Denevi, B. W.; Klimczak, C.; Prockter, L. M.; Solomon, S. C.; Whitten, J.; Head, J. W.

    2012-12-01

    On the basis of morphology and spectral reflectance, the surface of Mercury can be broadly divided into three major terrain types: low-reflectance material, intermediate terrain, and smooth plains. This last terrain type is distinguished morphologically by a comparatively smooth and gently rolling surface, has a lower density of impact craters and basins than other surface units on the planet, and typically occupies low-lying areas. Their smooth texture, embayment of other landforms, and distinctive partial to complete burial of older impact features suggests that most of these plains are probably volcanic in nature. Recent mapping work has shown that smooth plains younger than the end of the late heavy bombardment (LHB) occupy ~30% of Mercury's surface. An outstanding question concerns the distribution and nature of older plains units on the planet, especially those that underlie large impact features and may correspond morphologically to smooth plains but have not yet been mapped accordingly. A preliminary survey of such terrain yielded five exemplar sites: at the Amaral (26.5°S, 117.8°E; 101 km diameter), Mickiewicz (23.2°N, 256.7°E; 103 km), and Vivaldi (13.8°N, 274.1°E; 212 km) basins and at two unnamed features at 53.1°S, 38.6°E (83 km in diameter) and 7.1°N, 38.3°E (118 km). We expect that more thorough mapping will uncover additional candidate areas. In each of the example sites, an extensive continuous ejecta deposit and secondary impact field characterize the proximal and distal facies, respectively, of the impact feature; and in each case, the secondaries field (and impact-sculpted terrain in the case of Vivaldi) is superposed upon patches of plains that otherwise appear smooth and host numerous, flooded antecedent craters tens of kilometers in diameter. Moreover, these smooth patches occur at several ranges of azimuths surrounding each crater or basin, suggesting that they may have formed contiguous units prior to formation of the younger

  5. MALNUTRITION IN PATIENTS WITH GASTROINTESTINAL CANCER: EFFECTIVENESS OF DIFFERENT DIAGNOSTIC METHODS.

    PubMed

    Dias do Prado, Corina; Alvares Duarte Bonini Campos, Juliana

    2015-07-01

    Objetivo: estimar la efectividad de los diferentes métodos para la identificación y/o presencia de desnutrición en las personas con riesgo de cáncer gastrointestinal. Métodos: los participantes fueron 143 pacientes con cáncer gastrointestinal, atendidos en la sala del Hospital Clínico de Oncología Amaral Carvalho (Jau-SP). No se excluyeron los pacientes ingresados en la unidad de cuidados intensivos, con enfermedad terminal o con miembros amputados que recibieron transfusiones de sangre en el último mes, con hemorragias clínicamente relevantes, que recibieron albúmina intravenosa y aquellos con infección no controlada. El estado nutricional de los participantes se clasificó de acuerdo a la relación Peso Real y Peso Habitual (PR/PH), Índice de Masa Corporal (IMC), Índice de Riesgo Nutricional (IRN) y porcentaje de ajuste (% score). Como método estándar de oro se utilizó la Evaluación Global Subjetiva. Fue evaluada la eficacia de los métodos para detectar el riesgo de desnutrición o la presencia de desnutrición. La curva ROC fue construido y su área (AUROC) se estimó. Las áreas se compararon mendiante z estadística. Para cada método resuelto el mejor punto de corte. Resultados: de los pacientes, el 74,1% había avanzado en el estado de la enfermedad y el 83,2% fueron sometidos a métodos quimioterápicos. Todos los métodos de tratamiento mostraron una adecuada capacidad discriminatoria para detectar el riesgo de desnutrición y la presencia de la misma. El IMC fue significativamente mejor para la detección de la desnutrición que para el riesgo de desnutrición. El riesgo PR/PH fue significativamente mejor para detectar el riesgo de desnutrición que otros métodos. Los puntos de corte fueron inferiores a los puntos de corte recomendados para población normativa con los métodos PR/PH, NRI y porcentaje de ajuste (% score). Para el punto de corte del IMC fue mayor que el recomendado para la población normativa. Conclusión: los m

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

    USGS Publications Warehouse

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

    2010-01-01

    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

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

    PubMed Central

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

    2014-01-01

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

  8. Management of mitral regurgitation during left ventricular reconstruction for ischemic heart failure†

    PubMed Central

    Klein, Patrick; Braun, Jerry; Holman, Eduard R.; Versteegh, Michel I.M.; Verwey, Harriette F.; Dion, Robert A.E.; Bax, Jeroen J.; Klautz, Robert J.M.

    2012-01-01

    OBJECTIVE Remodeling of the left ventricle (LV) in ischemic cardiomyopathy frequently leads to functional mitral regurgitation (MR). The indication for correcting MR in patients undergoing LV reconstruction (LVR) is unclear. In this study, we evaluated our strategy of correcting MR ≥ grade 2+ by restrictive mitral annuloplasty (RMA) during LVR. METHODS We studied 92 consecutive patients (76 men, mean age 61 ± 10 years) who underwent LVR for ischemic heart failure (IHF). RMA was performed in all patients with MR ≥ grade 2+ on preoperative echocardiography and in patients who showed increased MR to ≥grade 2+ immediately after LVR. Patients were attributed to a RMA and no-RMA group, depending on whether or not concomitant RMA had been performed. Mean clinical and structured echocardiographic follow-up was 47 ± 20 months and was 100% complete. RESULTS In 38 out of 40 patients (95%) with preoperative MR ≥ grade 2+, concomitant RMA was planned and performed. In 17 out of 52 patients (33%) with MR < grade 2+ preoperatively, MR increased after LVR to ≥grade 2+ leading to additional RMA during a second period of aortic cross-clamping. Early mortality in the RMA group (n = 55) was 12.7% and survival at 36 months 78.2 ± 11.2%. Early mortality in the no-RMA group (n = 37) was 5.4% and survival at 36 months 81.1 ± 12.8%. Patients in the RMA group had significantly more reduced LV function with greater LV dimensions and volumes preoperatively. Echocardiography demonstrated sustained improvement in LVEF with reduction of LV volumes in both patient groups. Recurrence of MR at late follow-up was observed in 2 patients (1 patient per group). CONCLUSIONS Patients with IHF eligible for LV reconstruction have MR ≥ grade 2+ in 44% of cases. In one-third of IHF patients with MR < grade 2+ preoperatively, MR increases to ≥grade 2+ after LVR. Concomitant mitral valve repair for MR ≥ grade 2+, on either preoperative echocardiography or

  9. FUSE and STIS Observations of Highly Ionized Gas along the Line of Sight towards HD 116852

    NASA Astrophysics Data System (ADS)

    Fox, A. J.; Savage, B. D.; Fabian, D.; Richter, P.; Sembach, K. R.; Meyer, D. M.; Lauroesch, J.; Howk, J. C.

    2002-05-01

    We present Space Telescope Imaging Spectrograph (STIS) and Far-Ultraviolet Spectroscopic Explorer (FUSE) observations of high ion interstellar ultraviolet absorption along the sight line to HD 116852. At a distance of 4.8 kpc, HD 116852 is an O9 III star lying in the low Galactic halo, -1.3 kpc from the plane of the Galaxy in the direction l = 304.9o, b = -6.1o. The sight line passes underneath the Sagittarius-Carina and the Norma-Centaurus spiral arms. The STIS E140H grating observations provide high-resolution (FWHM ≈ 2.7 km s-1) spectra of the resonance doublets of Si 4, C 4 and N 5. These data are complemented by medium-resolution (FWHM ≈ 20 km s-1) FUSE spectra of O 6. We find evidence for three distinct types of absorbing gas present in the data. First, two narrow absorption components are resolved in the Si 4 and \\ion {C}{4} profiles, at approximate LSR velocities of -36 and -10 km s-1. These narrow components appear to be produced in gas associated with the Norma and Sagittarius spiral arms, at approximate z-distances of -1.0 and -0.5 kpc respectively. The temperature of the gas in in these narrow components, as implied by their b-values, suggests that the gas is photoionized. The ratio of C 4 to Si 4 in these narrow components is low compared to the Galactic average. Second, we detect an intermediate-width component in C 4 and Si 4, at +17 km s-1, which we propose could arise at the conductive interface at the boundary between a dense cloud and the surrounding medium. Finally, a broad collisionally ionized component of gas responsible for producing the smooth N 5 and O 6 profiles is observed; such absorption is also present to a lesser degree in the profiles of Si 4 and \\ion {C}{4}. The broad O 6 absorption is observed at a velocity displaced from the C 4 profile by almost 20 km s-1, an amount large enough to suggest that the two ions may not co-exist in the same physical location. If these two ions do exist together, then the ratio N(C 4)/N(O 6) is

  10. Control spectra for Quito

    NASA Astrophysics Data System (ADS)

    Aguiar, Roberto; Rivas-Medina, Alicia; Caiza, Pablo; Quizanga, Diego

    2017-03-01

    The Metropolitan District of Quito is located on or very close to segments of reverse blind faults, Puengasí, Ilumbisí-La Bota, Carcelen-El Inca, Bellavista-Catequilla and Tangahuilla, making it one of the most seismically dangerous cities in the world. The city is divided into five areas: south, south-central, central, north-central and north. For each of the urban areas, elastic response spectra are presented in this paper, which are determined by utilizing some of the new models of the Pacific Earthquake Engineering Research Center (PEER) NGA-West2 program. These spectra are calculated considering the maximum magnitude that could be generated by the rupture of each fault segment, and taking into account the soil type that exists at different points of the city according to the Norma Ecuatoriana de la Construcción (2015). Subsequently, the recurrence period of earthquakes of high magnitude in each fault segment is determined from the physical parameters of the fault segments (size of the fault plane and slip rate) and the pattern of recurrence of type Gutenberg-Richter earthquakes with double truncation magnitude (Mmin and Mmax) is used.

  11. Renal arteriovenous fistula simulating hydronephrosis: A case report.

    PubMed

    Lusenti, T; Fiorini, F; Barozzi, L

    2011-12-01

    Sommario INTRODUZIONE: Tra le fistole arterovenose (FAV) acquisite vi sono quelle che si formano quale complicanza dell’esecuzione di una biopsia renale. CASO CLINICO: Gli autori riportano il caso di una paziente giunta in ambulatorio di ecografia nefrologica per l’esecuzione di un’ecografia dei reni e delle vie urinarie per un’ipertensione sistolica di I grado di recente insorgenza. Negli esami di laboratorio era presente microematuria con proteinuria <0.5 g/24 ore. La funzionalità renale risultava ai limiti inferiori della norma (FG 58 mL/min secondo la formula MDRD). L’esame ecografico evidenziava una formazione anecogena “arboriforme” centropielica a livello del rene sinistro suggestiva per idronefrosi. Il color Doppler mostrava viceversa presenza di flusso turbolento all’interno dell’area anecogena stessa, con flusso arterioso elevato e arterializzazione del flusso venoso all’analisi spettrale. La successiva angiografia renale selettiva confermava il sospetto ecografico di FAV mediorenale sinistra con pseudoaneurisma, conseguente ad una biopsia renale effettuata più di 10 anni prima presso altro Centro. Essendo la paziente in pieno benessere veniva consigliato un più stretto follow-up clinico-ecografico. DISCUSSIONE: Tra le malformazioni vascolari renali di non rara osservazione sono le FAV. Il caso descritto ribadisce l’importanza dell’impiego dell’eco color Doppler (ECD) nel sospetto di uropatia ostruttiva, per diagnosticare una FAV, specialmente nei pazienti già sottoposti a biopsia renale.

  12. Compositae Plants Differed in Leaf Cuticular Waxes between High and Low Altitudes.

    PubMed

    Guo, Na; Gao, Jianhua; He, Yuji; Guo, Yanjun

    2016-06-01

    We sampled eight Compositae species at high altitude (3482 m) and seven species at low altitude (220 m), analyzed the chemical compositions and contents of leaf cuticular wax, and calculated the values of average chain length (ACL), carbon preference index (CPI), dispersion (d), dispersion/weighted mean chain length (d/N), and C31 /(C31  + C29 ) (Norm31). The amounts of total wax and compositions were significantly higher at high altitude than at low altitude, except for primary alcohol, secondary alcohol, and ketone. The main n-alkanes in most samples were C31 , C29 , and C33 . Low altitude had more C31 and C33 , whereas more C29 occurred at high altitude. The ACL, CPI, d, d/N, and Norma 31 were higher at low altitude than at high altitude. The fatty acid and primary alcohol at low altitude contained more C26 homologous than at high altitude. More short-chain primary alcohols were observed at high altitude. At low altitude, the primary alcohol gave on average the largest amount, while it was n-alkane at high altitude. These results indicated that the variations of leaf cuticular waxes benefited Compositae plants to adapt to various environmental stresses and enlarge their distribution.

  13. [Gastroduodenal mucosa sensitivity to estrogen in ulcers complicated by hemorrhage].

    PubMed

    Duzhiy, I D; Romanyuk, A M; Kharchenko, S V; Moskalenko, R A; Pyatykop, G I; Lyndin, M S

    2015-02-01

    Expression of alpha-receptors of estrogen (RE) in accordance to immunohistochemical (IHC) labeling in gastroduodenal mucosa cells was studied up in patients, suffering the ulcer disease and without it. In 4 patients (group I) a gastroduodenal mucosa affection was revealed, they were operated on for hemorrhage from gastroduodenal ulcers; in 3 patients (group II) gastroduodenal mucosa affection was not observed; in 4 patients (group III, control), a mammary gland cancer was diagnosed, a positive reaction on alpha-RE was noted. In groups I and II the biopsies were studied, obtained from pylorus and gastric fundus, as well as from duodenal ampula, and in a group III--obtained from the tumor. In a control group a positive labeling of nuclei was revealed in biopsies. In patients of groups I and II the alpha-RE expression by cellular nuclei was not revealed, but, the lots of positive IHC labeling of cytoplasm in glandular and stromal mucosal cells of the investigated gut were noted. Positive IHC labeling of cytoplasm for alpha-RE witnesses about sensitivity to them in norma and pathological processes. But, a trustworthy difference of alpha-RE expression by cellular nuclei was not noted. For confirmation or denial of this hypothesis further clinical and IHC investigations are needed.

  14. The Supernova Remnant CTA 1

    NASA Technical Reports Server (NTRS)

    Seward, Frederick D.

    1996-01-01

    The supernova remnants G327.1-1.1 and G327.4+0.4 (Kes 27) are located 1.5 deg apart in the constellation Norma. In 1980, Einstein IPC observations discovered that both were irregular filled-center X-ray sources with possible point sources superposed. This paper describes new ROSAT position sensitive proportional counter (PSPC) observations which both map the diffuse structure and clearly show several unresolved sources in each field. Both remnants have bright emitting regions inside the limb which might indicate the presence of high energy electrons accelerated by a pulsar. The interior region is more prominent in G327.1-1.1 than in Kes 27. The spectra are relatively strongly absorbed, as expected from distant remnants close to the galactic plane. Comparison of the X-ray and radio maps of each remnant allows us to attribute some emission to a shell and some to the interior. With this information, a blast-wave model is used to derive approximate ages and energy release. Indications are that the Kes 27 supernova deposited approximately 10(exp 51) ergs in the surrounding medium. The G327.1-1.1 event probably deposited a factor of 3-10 less.

  15. Galactic distribution of Cepheids between l of approximately 294 and 331 deg

    NASA Technical Reports Server (NTRS)

    Grayzeck, E. J.

    1979-01-01

    Previous observations of long-period Cepheids in the Crux-Centaurus-Circinus-Norma (CCCN) region (bounded by galactic longitudes of approximately 294 and 331 deg) are used to delineate spiral features that are consistent with available data for other spiral tracers, especially H I gas. The galactic distribution of the long-period Cepheids in the CCCN region is examined, and a possible interpretation of the spiral structure as viewed in the CCCN region is suggested. Specifically, it is concluded that: (1) the region that is often called the Centaurus link contains no Cepheids with periods longer than 11.25 days and may be part of a spiral feature characterized by older Population I material; (2) long-period Cepheids at large distances (4 kpc) are concentrated near 307 deg galactic longitude and are probably associated with the 'inner arm' identified by Kraft (1965); and (3) the velocities of the observed Cepheids differ significantly from the predictions of the Schmidt (1965) model.

  16. Hydrographic and Chemical Data from the Eastern Tropical North Pacific Ocean - January 1977.

    DTIC Science & Technology

    1978-03-01

    wi th O . $~. precis i o n at the deep water leve ls . The method is accur ate to about 0 .5~. at norma l oceanic O\\v tlOIl levels but its accuracy...S • S . C C .’. • 4 (~‘,‘ C IsI , i C 1 ~ ‘ .~~‘ I (I’ — . 4 C ’ ’ .4 . 4 . 4 .i .4 • $ . 4 \\ S \\I 45 I .~~ C I’. (‘4 ~~ ‘ ~~ ‘ ~~ .4 t t C...PBAC?IC&BL~ia~~ o~’x i, isi ~~ 10 UDO “ I I N’ N’. N’ ~~ - (7’ C.) I C) ( ~~-4 C.) ‘~~ E ~~ I S S S S S (.0 I 4’_~ ci •—4 0’ P”. N’ I S 5 5 5O 4 N

  17. [Physical, chemical and microbiological quality of concentrated orange juices made in Venezuela].

    PubMed

    Cava, R M; Hernández, P

    1996-03-01

    Concentrated fruit juices are a very attractive type of product because of the many advantages they offer for reductions in packing, transportation and storage costs, and in addition, they offer the possibility of consumption outside harvesting time. Due to their potential in the international market, it is necessary to evaluate if they are accomplishing the quality requirements, and to know the different factors that can affect their stability. For this purpose, samples of national products were analyzed for physical, chemical and microbiological characteristics; the diacetyl test was performed as a measure of the sanitary conditions under processing. The samples analyzed comply with the national standards established by the Comision Venezolana de Normas Industriales (COVENIN N(o) 2395-86 Concentrados de frutas para consumo directo). It is advisable to determine the zero tolerant yeasts population because this type of microorganisms are responsible for spoilage whenever cold storage is interrupted, and because they can not be detected by the official procedures used to detect yeasts.

  18. Gastro-oesophageal reflux and gastrooesophageal reflux disease in infants and children.

    PubMed

    Falconer, Jackie

    2010-01-01

    Gastro-oesophageal reflux (GOR) is a norma physiological process occurring daily in healthy infants with similar frequency in both breast- and bottle-fed infants. It is generally considered uncomplicated and self-limiting, resolving spontaneously by 12-14 months of age. In contrast, gastro-oesophageal reflux disease (GORD) is associated with more severe symptoms and, on occasions, oesophagitis. In the small percentage of cases that do not respond to simple feeding measures, a trial for 2-4 weeks using an extensively hydrolysed formula may be considered. Thickeners and antiregurgitation feeds may help with the frequency of overt regurgitation. Feeding difficulties can be a problem in infants with reflux, with some suffering extreme aversion to texture. In the small percentage of infants who experience faltering growth, high-calorie formulae can be used. In those with severe feeding difficulties or severe faltering growth, tube feeding may be required. Infants should ideally be managed within a multidisciplinary team including a speech and language therapist, psychologist, dietitian and paediatrician.

  19. Near-infrared spectra of high-albedo outer main-belt asteroids

    SciTech Connect

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

    2015-02-01

    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 μm) 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 μm). 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 μm) 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.

  20. Low order physical models of vertical axis wind turbines

    NASA Astrophysics Data System (ADS)

    Craig, Anna; Dabiri, John; Koseff, Jeffrey

    2016-11-01

    In order to examine the ability of low-order physical models of vertical axis wind turbines to accurately reproduce key flow characteristics, experiments were conducted on rotating turbine models, rotating solid cylinders, and stationary porous flat plates (of both uniform and non-uniform porosities). From examination of the patterns of mean flow, the wake turbulence spectra, and several quantitative metrics, it was concluded that the rotating cylinders represent a reasonably accurate analog for the rotating turbines. In contrast, from examination of the patterns of mean flow, it was found that the porous flat plates represent only a limited analog for rotating turbines (for the parameters examined). These findings have implications for both laboratory experiments and numerical simulations, which have previously used analogous low order models in order to reduce experimental/computational costs. NSF GRF and SGF to A.C; ONR N000141211047 and the Gordon and Betty Moore Foundation Grant GBMF2645 to J.D.; and the Bob and Norma Street Environmental Fluid Mechanics Laboratory at Stanford University.

  1. Twelve Issues for Cognitive Science.

    DTIC Science & Technology

    1979-10-01

    OU3UNCLAUZPIIO 7n4 ‘a- J11 __________ __ _ _ _ ~P~*1FJ~~I ENDoAt~FtL NE~ 3-80r I p I OCTOBER 1979~~~~~~~~~~~~~~~~~~ REPORT No. 7904 Donald A. Norma n...0533 PCI! 01509 15.44) 0-00) (U- °1—1-50S10 > JflJC5 Q 0)5I040 j.UJOju( P54! 11.401St. 1044 ~S 1 C 5 T 5 I 1*i Of l OTalo ISo JO UJT4)u)..10) put...s-s 4 - 1 3 5 — 4. 5 0 1 3 4 -0 — 1. 4- —5 5 0 8 5 0 IsO 5 5 C L ‘.5 53 •Q C L . IS 4 5 - 4 -.2 4 5 ( 0 3 ~~~~~ 0. ~~~~~~~~ ~~~ IS~~~~~~ 0 8 5

  2. Exploring Cultural Heritage Resources in a 3d Collaborative Environment

    NASA Astrophysics Data System (ADS)

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

    2012-06-01

    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.

  3. Los plaguicidas y la contaminacion del medio ambiente Venezolano

    USGS Publications Warehouse

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

    1972-01-01

    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.

  4. An adaptive online learning approach for Support Vector Regression: Online-SVR-FID

    NASA Astrophysics Data System (ADS)

    Liu, Jie; Zio, Enrico

    2016-08-01

    Support Vector Regression (SVR) is a popular supervised data-driven approach for building empirical models from available data. Like all data-driven methods, under non-stationary environmental and operational conditions it needs to be provided with adaptive learning capabilities, which might become computationally burdensome with large datasets cumulating dynamically. In this paper, a cost-efficient online adaptive learning approach is proposed for SVR by combining Feature Vector Selection (FVS) and Incremental and Decremental Learning. The proposed approach adaptively modifies the model only when different pattern drifts are detected according to proposed criteria. Two tolerance parameters are introduced in the approach to control the computational complexity, reduce the influence of the intrinsic noise in the data and avoid the overfitting problem of SVR. Comparisons of the prediction results is made with other online learning approaches e.g. NORMA, SOGA, KRLS, Incremental Learning, on several artificial datasets and a real case study concerning time series prediction based on data recorded on a component of a nuclear power generation system. The performance indicators MSE and MARE computed on the test dataset demonstrate the efficiency of the proposed online learning method.

  5. [Neuroethics (I): moral pathways in normal brain].

    PubMed

    Álvaro-González, Luis C

    2014-03-01

    Introduccion. La moralidad es el conjunto de normas y valores que guian la conducta. Se mantienen en muy diferentes culturas. Permiten alcanzar logros sociales que solo se entienden bajo el desarrollo moral, con un sentido de justicia que penetra toda accion humana. Las funciones morales, fruto del desarrollo evolutivo, asientan en circuitos neuronales propios. Objetivo. Describir su aparicion, puesta en marcha y mecanismos operativos en el cerebro normal. Desarrollo. Las respuestas morales, en lo esencial homogeneas, estan muy vinculadas al desarrollo emocional, tanto basico e individual (miedo o ira) como social (compasion o justicia). Aparecen a partir de los binomios emocionales placer/dolor y recompensa/castigo, que conducen al binomio moral basico bueno/malo. En su puesta en marcha intervienen la corteza prefrontal (ventromedial y dorsolateral), la corteza cingular anterior y el sulco temporal superior, que serian evaluativos y elaborativos, utilitaristas; tambien la insula, la amigdala y el hipotalamo, ejecutivos de las respuestas morales mas emocionales puras y rapidas. Asimismo, es importante el sistema de neuronas espejo (frontoparietal), que permite el aprendizaje motor y las conductas empaticas, con las que se vincula con la teoria de la mente. Conclusiones. El desarrollo del sentido moral y sus respuestas nos han permitido alcanzar una complejidad y convivencia social que redundan en beneficio de la especie e individuos. El conocimiento del funcionamiento moral esta influyendo tambien en territorios diversos de la neurocultura.

  6. Normal-conducting scaling fixed field alternating gradient accelerator for proton therapy

    NASA Astrophysics Data System (ADS)

    Garland, J. M.; Appleby, R. B.; Owen, H.; Tygier, S.

    2015-09-01

    In this paper we present a new lattice design for a 30-350 MeV scaling fixed-field alternating gradient accelerator for proton therapy and tomography—NORMA (NOrmal-conducting Racetrack Medical Accelerator). The energy range allows the realization of proton computed tomography and utilizes normal conducting magnets in both a conventional circular ring option and a novel racetrack configuration, both designed using advanced optimization algorithms we have developed in pyzgoubi. Both configurations consist of ten focusing-defocusing-focusing triplet cells and operate in the second stability region of Hills equation. The ring configuration has a circumference of 60 m, a peak magnetic field seen by the beam of <1.6 T , a maximum horizontal orbit excursion of 44 cm and a dynamic aperture of 68 mm mrad—determined using a novel dynamic aperture (DA) calculation technique. The racetrack alternative is realized by adding magnet-free drift space in between cells at two opposing points in the ring, to facilitate injection and extraction. Our racetrack design has a total magnet-free straight lengths of 4.9 m, a circumference of 71 m, a peak magnetic field seen by the beam of <1.74 T , a maximum horizontal orbit excursion of 50 cm and a DA of 58 mm mrad. A transverse magnet misalignment model is also presented for the ring and racetrack configurations where the DA remains above 40 mm mrad for randomly misaligned error distributions with a standard deviation up to 100 μ m .

  7. [80 years of soial service in medicine].

    PubMed

    Hace 80 años, la Escuela de Medicina de la Universidad Nacional, en voz de su director, Gustavo Baz Prada, hizo una propuesta que pronto se convirtió en realidad y finalmente en norma, la que desde entonces se conoce como SS. Esta iniciativa se vio como una manera para que los estudiantes de medicina del último año retribuyeran a la sociedad una parte de lo que esta invirtió en su educación, consolidaran su formación mediante la exposición a las realidades de todos los días en los medios más necesitados, se pusieran a prueba sobre sus verdaderas capacidades para atender pacientes y participaran en la solución de un problema de atención sanitaria que en ese entonces era mucho más apremiante que ahora. Unos años después, los recién egresados de otras licenciaturas (pasantes) también fueron incorporados a esta estrategia y, al fin, se reconoció formalmente como una responsabilidad de las instituciones educativas. Las aportaciones del SS a la salud de las personas y a la formación de los médicos han sido incuestionables, y la experiencia humana que ha representado para quienes lo han vivido ha dejado marcas indelebles.

  8. [Training degree assessment of staff producing parenteral nutrition in Pharmacy Services].

    PubMed

    Romero Jiménez, Rosa Mª; Gomis Muñoz, Pilar; Crespo, Cristina; Piñeiro, Guadalupe; Pérez-Pons, Juan Carlos; García Rodicio, Sonsoles; Ripa Ciaurriz, Carmen; Gimeno Ballester, Vicente; Vázquez, Cristina; Cervera, Mercedes; Calvo, Mª Victoria; Tejada, Pilar

    2016-11-01

    Objetivo: Evaluar el grado de formación del personal que elabora nutrición parenteral en los Servicios de Farmacia. Material y métodos: Se diseñó una encuesta on-line con 17 preguntas en la que se incluyeron los puntos más importantes en la elaboración de nutriciones parenterales. Para el diseño de la encuesta y el análisis posterior se utilizó la aplicación informática Survey monkey®. Resultados: Se obtuvieron un total de 135 respuestas. En el 95% de los Servicios de Farmacia existían normas escritas de elaboración. El 67% contestó que el fosfato se debía añadir cuando se empiezan a añadir los electrolitos y el 34% que no se realizaba la validación de la técnica aséptica de elaboración. En cuanto a la formación, el 19% no la había recibido, considerando necesario recibirla el 99%. Conclusiones: El personal encuestado presenta un grado de formación aceptable, pero son necesarios los cursos de formación que se deben fomentar desde los Servicios de Farmacia.

  9. Temporal analysis of PM10 in Metropolitan Monterrey, México.

    PubMed

    González-Santiago, Omar; Badillo-Castañeda, Christian T; Kahl, Jonathan D W; Ramírez-Lara, Evangelina; Balderas-Renteria, Isaías

    2011-05-01

    The Monterrey Metropolitan Area (MMA) is the third largest city in Mexico. Few studies have been carried out regarding its air pollution. The aim of this study was to analyze the temporal behavior of PM10 (particulate matter < or =10 microm in aerodynamic diameter). Data reported by the "Sistema Integral de Monitoreo Ambiental" (Integrated Environmental Monitoring System) network from 2006 to 2008 were used. PM10 levels were compared among the stations by year, season, and day of week. A bootstrap technique was used to obtain subsamples to which Student's t test and ANOVA were applied. PM10 levels were high and exceeded the annual limit of 50 microg/m3 set up by the Mexican standard Norma Oficial Mexicana NOM-025-SSA1-1993. These levels could have serious health effects. The southwest zone of MMA had the highest levels of PM10 during the period studied. Winter was the most polluted season, and summer was the least polluted season. Thursday and Friday were the most polluted days, and Sunday was the least polluted day. The hours with the highest levels of PM10 were 8:00 to 10:00 a.m., whereas nighttime hours were the cleanest.

  10. [Neuroethics (II): moral pathways in disordered brain].

    PubMed

    Álvaro-González, Luis C

    2014-03-16

    Introduccion. La moralidad es el conjunto de normas y valores que guian la conducta. Se mantienen en muy diferentes culturas y permiten alcanzar altos logros sociales. Asientan en circuitos neuronales propios. Su lesion o alteracion funcional generara alteraciones o cambios en la conducta moral. Objetivo. Describir las disfunciones morales, su puesta en marcha y los mecanismos operativos en diferentes lesiones y patologias neurologicas. Desarrollo. Las patologias de la moralidad se deben a la lesion estructural de diferente grado (destructiva prefrontal; microscopica en amigdala/corteza prefrontal en las psicopatias), a la disfuncion de mediadores (hiperfuncion dopaminergica en trastornos de la conducta de parkinsonianos con algunos tratamientos o en toxicomanias) o a trastornos geneticos (mutaciones de COMT o MAO en ciertas sociopatias). Actuan por mecanismo excitatorio, inhibitorio o mixto en los circuitos morales emocionales (temporales) y cognitivos (prefrontales). Las topografias y mecanismos explican la diferente expresividad clinica. Conclusiones. El conocimiento de las alteraciones de la conducta moral refuerza los conocimientos anatomicos y fisiologicos de la moralidad en la poblacion sana. Es un factor que contribuye a la elucidacion de las variaciones eticas interculturales y al pujante desarrollo reciente de la neuroetica, que, por su complejidad, se beneficia de aportaciones de diversos territorios de la neurocultura.

  11. Experiencias y repercusión de una formación en ética de investigación

    PubMed Central

    Rupaya, Carmen Rosa García

    2012-01-01

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

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

    PubMed

    Vishnyakova, Dina; Pasche, Emilie; Ruch, Patrick

    2012-01-01

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

  13. Controlling Light Pollution in Chile A Status Report.

    NASA Astrophysics Data System (ADS)

    Smith, Malcolm G.; Sanhueza, P.; Schwarz, H. E.; Walker, A. R.

    2006-12-01

    In 1999, after 6 years of intense work wirh Chilean authoritie Eduardo Frei Ruiz-Tagle, the then President of Chile signed into law Supreme Decree 686, the environmentally-linked "Norma Luminica". This, in effect, required that lighting in the three astronomically-sensitive Regions of Northern Chile (II Paranal,Armazones III Las Campanas IV La Silla, Tololo, Pachon) be directed downwards instead of into the sky. Various grace periods up to a maximum of five years were specified for different types of lighting. Street lighting was due to be fully compliant by 1st October, 2005. 70% of the street lighting in these 3 Regions now meets specifications and work continues towards full compliance. More sophisticated draft legislation is under consideration with several Chilean national authorities. This may include international lighting norms, energy-saving caps and measures to address energy-saving, environmental and human-health issues. With vigilance, these measures are likely to extend the useful life of all existing and major planned observatories in Chile by several decades.

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

    NASA Technical Reports Server (NTRS)

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

    1988-01-01

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

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

    PubMed

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

    2015-04-01

    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.

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

    PubMed

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

    2012-01-01

    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.

  17. Individual attitudes and perceived social norms: Reports on HIV/AIDS-related stigma among service providers in China

    PubMed Central

    Li, Li; Liang, Li-Jung; Wu, Zunyou; Lin, Chunqing; Wen, Yi

    2009-01-01

    personnelles dans l’étude de la stigmatisation lié au VIH et prōnent l’incorporation de l’existence du capital humain dans les futurs programmes de réduction de la stigmatisation du VIH. En este estudio se examinó el estigma hacia el VIH/SIDA entre proveedores de servicios chinos mediante la comparación de sus actitudes hacia las personas que viven con el VIH/SIDA con su precepción de las normas sociales relacionadas a personas que viven con el VIH/SIDA. Se seleccionaron al azar tres hospitales provinciales, cuatro de la ciudadlhospitales de la prefectura, diez hospitales del condado, 18 clinicas de salud municipales, y 54 clinicas de la aldea de Yunnan, China. Los médicos y las enfermeras fueron incluidos en la muestra de manera aleatoria y considerando la relación enfermera-médico de cada hospital o clínica. Una muestra grande de técnicos de laboratorio fue incluida en el estudio con el fin de garantizar su adecuada representación en los análisis. Un total de 1,101 proveedores de servicios participaron de manera voluntaria en una encuesta anónima, en la cual se evaluaron las caracteristicas demográficas, las actitudes individuales, asi como la percepción de las normas sociales hacia personas que viven con el VIH/SIDA, la intención de discriminación laboral, las actitudes globales de prejuicio y los conocimientos sobre el VIH/SIDA. La mayor parte de la muestra presentó similitudes entre sus opiniones personales y lo que ellos pensaban, eran las creencias de la mayoria de las personas de su sociedad. En una regresión logistica multiple se pudo observar que los participantes más jóvenes o que indicaron un contacto personal con personas que viven con el VIH/SIDA, mostraron de manera más significativa respecto de esta población actitudes personales mucho más liberales que las normas sociales percibidas. El presentar una actitud personal más liberal que las normas sociales percibidas, hacia personas que viven con el VIH/SIDA, estaba significativa y

  18. CATALOG OF OBSERVED TANGENTS TO THE SPIRAL ARMS IN THE MILKY WAY GALAXY

    SciTech Connect

    Vallée, Jacques P.

    2014-11-01

    From the Sun's location in the Galactic disk, one can use different arm tracers (CO, H I, thermal or ionized or relativistic electrons, masers, cold and hot dust, etc.) to locate a tangent to each spiral arm in the disk of the Milky Way. We present a master catalog of the astronomically observed tangents to the Galaxy's spiral arms, using different arm tracers from the literature. Some arm tracers can have slightly divergent results from several papers, so a mean value is taken—see the Appendix for CO, H II, and masers. The catalog of means currently consists of 63 mean tracer entries, spread over many arms (Carina, Crux-Centaurus, Norma, Perseus origin, near 3 kpc, Scutum, Sagittarius), stemming from 107 original arm tracer entries. Additionally, we updated and revised a previous statistical analysis of the angular offset and linear separation from the mid-arm for each different mean arm tracer. Given enough arm tracers, and summing and averaging over all four spiral arms, one could determine if arm tracers have separate and parallel lanes in the Milky Way. This statistical analysis allows a cross-cut of a Galactic spiral arm to be made, confirming a recent discovery of a linear separation between arm tracers. Here, from the mid-arm's CO to the inner edge's hot dust, the arm halfwidth is about 340 pc; doubling would yield a full arm width of 680 pc. We briefly compare these observations with the predictions of many spiral arm theories, notably the density wave theory.

  19. [Determination and analysis of protein profile of different transfer factors].

    PubMed

    Guidos-Fogelbach, Guillermo Arturo; Paredes-Aguilar, Jorge Antonio; Colín-Martínez, Nayeli Montserrat; Rojo-Gutiérrez, María Isabel; López-Hidalgo, Marisol; Reyes-López, César Augusto Sandino

    2016-01-01

    Introducción: El factor de transferencia (FT) es el extracto dializable de leucocitos con propiedades de transferencia de inmunidad celular. Su uso se ha extendido en el tratamiento de una amplia gama de padecimientos inmunológicos, infecciosos y como coadyuvante de padecimientos oncológicos. A pesar de ello, no se conocen completamente aspectos importantes de su perfil proteico, concentraciones de componentes y mecanismos de acción. Objetivos: Analizar los perfiles proteicos de diferentes factores de transferencia comercializados en México. Métodos: Se obtuvieron y analizaron 6 FT comercializados en México. Se realizó la cuantificación de proteínas por el método de Bradford, cromatografía líquida de alta resolución (HPLC) y electroforesis en geles de poliacrilamida (SDS-PAGE). Todas las muestras fueron analizadas por duplicado. Resultados: Las concentraciones de proteínas totales de todos los FT analizados fueron menores de 0.2 mg/mL. Los perfiles cromatográficos mostraron diferencias en algunos FT. La concentración de proteínas resultó de 6 hasta casi mil veces más baja en comparación con lo informado por algunos fabricantes. Conclusión: Casi la totalidad de los factores de transferencia comercializados en México carecen de un etiquetado y registro sanitario que cumpla con las normas oficiales vigentes.

  20. The Scientist as Sentinel (Invited)

    NASA Astrophysics Data System (ADS)

    Oreskes, N.

    2013-12-01

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

  1. Evaluation Metrics for the Paragon XP/S-15

    NASA Technical Reports Server (NTRS)

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

    1993-01-01

    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).

  2. A First Calibration of SBF using Mulit-Conjugate Adaptive Optics

    NASA Astrophysics Data System (ADS)

    Gibson, Zachary; Jensen, Joseph B.; Blakeslee, John; Schirmer, Mischa

    2016-01-01

    We measured Surface Brightness Fluctuations (SBF) in three galaxies, ESO137-G006, NGC 3309, and NGC 5128, using the GeMS Multi-Conjugate Adaptive Optics (MCAO) system on the Gemini South telescope. ESO137-G006 is located in the Norma Cluster, NGC 3309 is located in the Hydra Cluster, while NGC 5128, also known as Centaurus A, is a nearby galaxy with numerous other distance measurements, including Cepheids. These galaxies were observed as a pathfinder to establish the SBF technique using the MCAO system.The J and K-band images taken with MCAO were astrometrically corrected and combined using the THELI software. This method allowed us to accurately account for the distortions of the focal plane when combining the images. The foreground stars as well as the globular clusters were measured to account for their contribution to the SBF. J-K color measurements were made to calibrate SBF and determine the stellar populations of the galaxies.The results of these measurements give us an SBF calibration that we can use to measure the distances to much more distant galaxies. Accurate distances are needed to determine the true spatial motions of galaxies and measure the mass distribution and density of the Universe. We now live in the era of "precision cosmology" in which distance measurements have transformed our understanding of the composition of the Universe and revealed the presence of Dark Matter and Dark Energy, the two dominant (but still unidentified) components of the Universe. The origins and nature of Dark Matter and Dark Energy are among the most important unsolved mysteries in physics.

  3. SU-E-T-249: Neutron Model Upgrade for Radiotherapy Patients Monitoring Using a New Online Detector

    SciTech Connect

    Irazola, L; Sanchez Doblado, F.; Lorenzoli, M; Pola, A.; Terron, J.A.; Bedogni, R.; Sanchez Nieto, B.; Romero-Exposito, M.

    2014-06-01

    Purpose: The purpose of this work is to improve the existing methodology to estimate neutron equivalent dose in organs during radiotherapy treatments, based on a Static Random Access Memory neutron detector (SRAMnd) [1]. This is possible thanks to the introduction of a new digital detector with improved characteristics, which is able to measure online the neutron fluence rate in the presence of an intense photon background [2]. Its reduced size, allows the direct estimation of doses in specific points inside an anthropomorphic phantom (NORMA) without using passive detectors as TLD or CR-39. This versatility will allow not only to improve the existing models (generic abdomen and H and N [1]) but to generate more specific ones for any technique. Methods: The new Thermal Neutron Rate Detector (TNRD), based on a diode device sensitized to thermal neutrons, have been inserted in 16 points of the phantom. These points are distributed to infer doses to specific organs. Simultaneous measurements of these devices and a reference one, located in front of the gantry, have been performed for the mentioned generic treatments, in order to improve the existing model. Results: These new devices have shown more precise since they agree better with Monte Carlo simulations. The comparison of the thermal neutron fluence, measured with TNRD, and the existing models, converted from events to fluence, shows an average improvement of (3.90±3.37) % for H and N and (12.61±9.43) % for abdomen, normalized to the maximum value. Conclusion: This work indicates the potential of these new devices for more precise neutron equivalent dose estimation in organs, as a consequence of radiotherapy treatments. The simplicity of the process makes possible to establish more specific models that will provide a better dose estimation. References[1] Phys Med Biol 2012; 57:6167–6191.[2] A new active thermal neutron detector. Radiat. Prot. Dosim. (in press)

  4. The complex stellar populations in the background of open clusters in the third Galactic quadrant

    NASA Astrophysics Data System (ADS)

    Carraro, Giovanni; Seleznev, Anton F.; Baume, Gustavo; Turner, David. G.

    2016-02-01

    Multicolour photometry of the stellar populations in five fields in the third Galactic quadrant centred on the clusters NGC 2215, NGC 2354, Haffner 22, Ruprecht 11, and ESO489 SC01 is interpreted in terms of a warped and flared Galactic disc, without resort to an external entity such as the popular Monoceros or Canis Major overdensities. Except for NGC 2215, the clusters are poorly or unstudied previously. The data generate basic parameters for each cluster, including the distribution of stars along the line of sight. We use star counts and photometric analysis, without recourse to Galactic-model-based predictions or interpretations, and confirms earlier results for NGC 2215 and NGC 2354. ESO489 SC01 is not a real cluster, while Haffner 22 is an overlooked cluster aged ˜2.5 Gyr. Conclusions for Ruprecht 11 are preliminary, evidence for a cluster being marginal. Fields surrounding the clusters show signatures of young and intermediate-age stellar populations. The young population background to NGC 2354 and Ruprecht 11 lies ˜8-9 kpc from the Sun and ˜1 kpc below the formal Galactic plane, tracing a portion of the Norma-Cygnus arm, challenging Galactic models that adopt a sharp cut-off of the disc 12-14 kpc from the Galactic Centre. The old population is metal-poor with an age of ˜2-3 Gyr, resembling star clusters like Tombaugh 2 or NGC 2158. It has a large colour spread and is difficult to locate precisely. Young and old populations follow a pattern that depends critically on the vertical location of the thin and/or thick disc, and whether or not a particular line of sight intersects one, both, or none.

  5. [Multisite study for norming and standardizing neuropsychological instruments in healthy people for Spanish population: methods and characteristics of Normacog project].

    PubMed

    del Pino, Rocío; Peña, Javier; Schretlen, David J; Ibarretxe-Bilbao, Naroa; Ojeda, Natalia

    2015-07-16

    Introduccion. Muchos de los instrumentos neuropsicologicos utilizados en España se han normalizado en poblacion hispanohablante procedente de Estados Unidos y Sudamerica, con grupos de edad y caracteristicas restrictivas. Utilizar este tipo de normas disminuye potencialmente su representatividad, la interpretacion de los resultados y las decisiones clinicas. Este estudio se enmarca dentro del proyecto Normacog, con el fin de estandarizar instrumentos neuropsicologicos en una muestra representativa de la sociedad española. Objetivo. Presentar la metodologia de normalizacion llevada a cabo en el proyecto Normacog y las caracteristicas sociodemograficas de la poblacion española y de los participantes incluidos en el estudio. Sujetos y metodos. Se reclutaron 711 participantes (rango: 18-90 años) de diferentes areas geograficas de España, incluyendo los datos sociodemograficos, medicos, habitos habituales, lengua materna, bilinguismo y dominancia manual. Cada participante completo 19 instrumentos que evaluaban un amplio rango de dominios cognitivos, como memoria verbal y visual, atencion, funciones ejecutivas, velocidad de procesamiento o fluidez y denominacion verbal. Resultados. La muestra final normativa refleja las caracteristicas sociodemograficas y la representatividad de la poblacion española de acuerdo con los rangos de edad, educacion y sexo. Conclusiones. Se describe la metodologia de normalizacion y las caracteristicas de la muestra incluida en el estudio multicentrico Normacog, mediante el cual se llevara a cabo la estandarizacion y normalizacion de instrumentos neuropsicologicos, teniendo en cuenta las caracteristicas sociodemograficas propias de la poblacion española. El proyecto Normacog proporciona datos normativos adecuados a nuestro medio cultural, y es esencial para poder realizar un diagnostico clinico y neuropsicologico fiable.

  6. Catalog of Observed Tangents to the Spiral Arms in the Milky Way Galaxy

    NASA Astrophysics Data System (ADS)

    Vallée, Jacques P.

    2014-11-01

    From the Sun's location in the Galactic disk, one can use different arm tracers (CO, H I, thermal or ionized or relativistic electrons, masers, cold and hot dust, etc.) to locate a tangent to each spiral arm in the disk of the Milky Way. We present a master catalog of the astronomically observed tangents to the Galaxy's spiral arms, using different arm tracers from the literature. Some arm tracers can have slightly divergent results from several papers, so a mean value is taken—see the Appendix for CO, H II, and masers. The catalog of means currently consists of 63 mean tracer entries, spread over many arms (Carina, Crux-Centaurus, Norma, Perseus origin, near 3 kpc, Scutum, Sagittarius), stemming from 107 original arm tracer entries. Additionally, we updated and revised a previous statistical analysis of the angular offset and linear separation from the mid-arm for each different mean arm tracer. Given enough arm tracers, and summing and averaging over all four spiral arms, one could determine if arm tracers have separate and parallel lanes in the Milky Way. This statistical analysis allows a cross-cut of a Galactic spiral arm to be made, confirming a recent discovery of a linear separation between arm tracers. Here, from the mid-arm's CO to the inner edge's hot dust, the arm halfwidth is about 340 pc doubling would yield a full arm width of 680 pc. We briefly compare these observations with the predictions of many spiral arm theories, notably the density wave theory.

  7. [Occupational physical activity and body composition in adult women; pilot study].

    PubMed

    Fuentes Bravo, Manuel; Zúñiga Paredes, Francisca; Rodríguez-Rodríguez, Fernando Javier; Cristi-Montero, Carlos

    2013-01-01

    Introducción: Las actividades durante la jornada laboral, pueden diferenciarse entre sí por su gasto energético y algunos de ellos podrían beneficiar la salud de acuerdo a sus características. Objetivo: Analizar y comparar la composición corporal y las características de la actividad física, a través de la acelerometría en las jornadas laborales de las trabajadoras administrativas y trabajadoras auxiliares de aseo de la Universidad Viña del Mar. Métodos: Se realiza un registro en jornadas de 10 hrs. por cuatro días seguidos del gasto energético a través de acelerómetros triaxiales a 8 secretarias y 8 auxiliares de aseo. Además se hace una evaluación antropométrica y se aplica el IPAQ (International Physical Activity Questionnaire). Resultados: Según el IPAQ, ambos grupos se encuentran en categoría de sedentarias, pero la acelerometría determina que las auxiliares caminan más pasos, tienen más quiebres sedentarios y realizan un nivel de actividad física más alto que las secretarias. Discusión: Hay trabajos que pueden favorecer el estado de salud, a pesar de no cumplir con la norma para considerarse “no sedentario”, como es el caso de las auxiliares de aseo. El gasto energético es mayor en las personas que realizan actividades que implican ejercicio de baja intensidad, lo que podría ayudar a reducir los niveles de adiposidad y mantener la masa muscular de las personas.

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

    NASA Astrophysics Data System (ADS)

    Vaitkuviene, A.; Gėgžna, V.; Varanius, D.; Vaitkus, J.

    2011-09-01

    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 care—off 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

  9. Prevalence, types, and geographical distribution of Listeria monocytogenes from a survey of retail Queso Fresco and associated cheese processing plants and dairy farms in Sonora, Mexico.

    PubMed

    Moreno-Enriquez, R I; Garcia-Galaz, A; Acedo-Felix, E; Gonzalez-Rios, I H; Call, J E; Luchansky, J B; Diaz-Cinco, M E

    2007-11-01

    In the first part of this study, samples were collected from farms, cheese processing plants (CPPs), and retail markets located in various geographical areas of Sonora, Mexico, over a 12-month period during the summer of 2004 and winter of 2005. Four (all Queso Fresco [QF] from retail markets) of 349 total samples tested positive for Listeria monocytogenes (Lm). Of these four positive samples, three were collected in the northern region and one in the southern region of Sonora. Additionally, two were collected during the winter months, and two were collected during the summer months. For the second part of the study, a total of 39 samples from a farm, a CPP, and retail markets were collected and processed according to a combination of the Norma Oficial Mexicana NOM-143-SSA1-1995.10 method (NOM) and the U.S. Food and Drug Administration (FDA) Bacteriological Analytical Manual method, and 27 samples from these same locations were collected and processed according to the U.S. Department of Agriculture Food Safety and Inspection Service method (USDA-FSIS). The NOM-FDA method recovered the pathogen from 6 (15%) of 39 samples (one cheese and five product contact surfaces), while the USDA-FSIS method recovered the pathogen from 5 (18.5%) of 27 samples (all product contact surfaces). In addition, the 40 isolates recovered from the 15 total samples that tested positive for Lm grouped into five distinct pulsotypes that were ca. 60% related, as determined by pulsed-field gel electrophoresis analysis. The results of this study confirmed a 3.4% prevalence of Lm in QF collected from retail markets located in Sonora and no appreciable difference in the effectiveness of either the NOM-FDA or USDA-FSIS method to recover the pathogen from cheese or environmental samples.

  10. Validity and reliability of the Dietary Sodium Restriction Questionnaire (DSRQ).

    PubMed

    d'Almeida, Karina S M; Souza, Gabriela C; Rabelo-Silva, Eneida Rejane

    2013-01-01

    Introducción: El Dietary Sodium Restriction Questionnaire (DSRQ) evalúa actitudes y comportamientos de pacientes con insuficiencia cardiaca (IC) relacionados con el cumplimiento de la restricción de sodio. Recientemente, ha sido traducido y adaptado culturalmente para uso en Brasil. No obstante, una validación adicional del instrumento se requiere para que pueda ser utilizado en el manejo de pacientes con IC en Brasil. Objetivo: Probar la fiabilidad y validez de la versión brasileña del DSRQ. Métodos: Validez aparente y de contenido fueron evaluados por un grupo de especialistas. Validez de constructo se evaluó mediante análisis factorial exploratoria y confirmatoria. La fiabilidad y consistencia interna del cuestionario fue evaluada mediante el coeficiente alfa de Cronbach. Resultados: Un total de 206 pacientes ambulatorios con IC fueron evaluados (edad media, 60,4 ± 11,9 años). Los resultados de la validez aparente y de contenido demostró la equivalencia entre la versión brasileña y de la versión original. En el análisis factorial exploratorio, el análisis de componentes principales (PCA) se obtuvieron cuatro factores con valores superiores a 1. Tres modelos fueron probados en el análisis factorial confirmatoria, y el modelo de tres factores resultantes del PCA mostró el mejor ajuste, representando 49% de la varianza. El alfa obtenido para las escalas de actitud/norma subjetiva, control de la conducta percibido y comportamiento dependiente fueron 0,71, 0,67 y 0,79, respectivamente. Conclusiones: Nuestros resultados sugieren que la versión brasileña del DSRQ es un instrumento válido y fiable para medir las actitudes y comportamientos relacionados con una dieta baja en sodio en pacientes brasileños con IC.

  11. Our Milky Way Gets a Makeover

    NASA Technical Reports Server (NTRS)

    2008-01-01

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

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

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

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

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

  12. [Frequency of cervical epithelial lesions reported in the Regional Laboratory of Exfoliative Cytology in Jalisco].

    PubMed

    González-López, Sergio; Martínez-Silva, María G; Hernández-Hernández, Dulce M; Aguilar-Lemarroy, Adriana; Jave-Suárez, Luis Felipe

    2015-01-01

    Introducción: La Norma Oficial Mexicana para la prevención, tratamiento y control del Cáncer Cérvico Uterino (CaCU) indica que el Papanicolaou (Pap) es el procedimiento de elección para la detección oportuna de esta neoplasia, por lo que es de interés conocer la prevalencia de casos tamizados mediante esta técnica en la población mexicana. En la presente investigación se muestran los casos que se identificaron como sospecha para CaCU por tamizaje en el estado de Jalisco, México. Métodos: se realizó un estudio retrospectivo de las muestras que llegaron para su análisis al Laboratorio Regional de Citología Exfoliativa (LARCE) del Instituto Mexicano del Seguro Social (IMSS) en Guadalajara, Jalisco. Se consideraron todos los casos de enero de 2010 a diciembre de 2012. Resultados: se analizaron 188 095 casos, de los cuales el 5.3 % se reportaron con sospecha de displasia leve, el 0.18 % de displasia moderada y el 0.05 % de displasia grave. En cáncer microinvasor e invasor se observó una baja frecuencia (0.03 %). Conclusiones: la frecuencia de hallazgos anormales identificados por citología cervicovaginal es relativamente baja. El número de muestras inadecuadas más limitadas para valoración citológica es alto; existe una elevada proporción de mujeres que asisten por primera vez en la vida a estudio citológico en grupos de edad avanzados.

  13. ATLASGAL: Chemical evolution of star forming clumps

    NASA Astrophysics Data System (ADS)

    Figura, Charles C.; Urquhart, James S.; Wyrowski, Friedrich

    2017-01-01

    Although massive stars are few in number, they impact their host molecular clouds, clusters, and galaxies in profound ways, playing a vital role in regulating star formation in their host galaxy. Understanding the formation of these massive stars is critical to understanding this evolution, but their rapid early development causes them to reach the main sequence while still shrouded in their natal molecular cloud. Many studies have investigated these regions in a targeted manner, but a full understanding necessitates a broader view at all stages of formation across many star forming regions.We have used mid-infrared continuum surveys to guide selection of a statistically large sample of massive dust clumps from the 10,000 such clumps identified in the ATLASGAL Compact Source Catalogue (CSC), ensuring that all stages of the evolutionary process are included. A final sample of 600 fourth-quadrant sources within 1 degree of the Galactic plane were observed with the Mopra telescope with an 8 GHz bandwidth between 85.2 and 93.4 GHz.We present an overview of our results. We have identified over 30 molecular lines, seven of which with detected hyperfine structure, as well as several mm-radio recombination line transitions. Source velocities indicate that these regions trace the Crux-Scutum, Norma, and Carina Sagitarius arms. We have performed an analysis of linewidth and line intensity ratios, correlating these with star formation stages as identified by IR brightness at the 70 and 24 μm bands, and present several molecular pairs whose linewidth and intensity might serve as significant tracers of the evolutionary stage of star formation. We comment on the results of PCA analysis of the measured parameters for the overall population and the star formation stage subgroups with an eye toward characterising early stellar development through molecular line observations.

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

    NASA Technical Reports Server (NTRS)

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

    2006-01-01

    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.

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

    PubMed

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

    2015-02-01

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

  16. [Sleep deprivation effects on cognitive, psychomotor skills and its relationship with personal characteristics of resident doctors].

    PubMed

    Hamui-Sutton, Liz; Barragán-Pérez, Virginia; Fuentes-García, Ruth; Monsalvo-Obregón, Erika Cristina; Fouilloux-Morales, Claudia

    2013-01-01

    Antecedentes: en países como Estados Unidos y las naciones europeas se han propuesto cambios a la estructura asistencial y académica de los médicos especialistas en formación que proponen transformaciones a las normas relativas al número de horas que trabajan a la semana los residentes. El argumento principal que sustenta esas transformaciones se basa en el supuesto de que las horas de trabajo excesivas (más de 16 horas ininterrumpidas) provocan alteraciones cognitivas y psicomotrices en los residentes. Objetivo: evaluar la asociación entre la privación de sueño y las habilidades cognitivas y psicomotoras de una muestra de residentes de diferentes especialidades médicas. Material y métodos: estudio longitudinal, con mediciones pre y post guardia, en 31 residentes de Medicina. Se midieron las variables de: habilidades cognitivas y psicomotoras, datos sociodemográficos y de condiciones de guardia, calidad de sueño y psicopatología. resultados: 81% de los residentes tuvo detrimento en, al menos, una de las pruebas realizadas; sin embargo, en los resultados de las habilidades psicomotoras y en la maniobra de reanimación cardiopulmonar básica se encontró una diferencia significativa en los momentos pre y post guardia con mejoría en las puntuaciones. Conclusiones: la privación de sueño disminuye las habilidades cognitivas y psicomotoras. Si bien nuestros resultados no son generalizables, pueden constituir un precedente para fundamentar posibles cambios referentes a las guardias en las residencias médicas.

  17. Is Chile Complying with its Light Pollution Regulations? A Status Report

    NASA Astrophysics Data System (ADS)

    Smith, M. G.; Sanhueza, P.; Schwarz, H. E.; Walker, A. R.

    2005-12-01

    Monte Patria is the first Municipality in Chile to comply fully with Supreme Decree 686, the Chilean, environmentally-based legislation governing exterior lighting in Northern Chile - the "norma luminica". "Before" and "after" photographs of Monte Patria were published in last June's issue of "Physics Today", in the context of the global effort to control light pollution. Some photographs of other Chilean towns have been obtained for this poster and for display at the International Dark Sky Association's stand at this meeting. Highlights include detailed midnight and dawn panoramas taken by us during October, 2005 - the month in which the six-year "grace period" for all external lighting in northern Chile's astronomically-sensitive 2nd, 3rd and 4th Regions was supposed to come into full compliance. It is clear that significant progress is being made. The chief obstacle has been financial. Large-scale changeout of street lighting requires an outlay of many millions of dollars from cash-strapped municipalities. Chile's central government has moved in to provide financing at the 80-100/% level in many cases. Once Chile's congressional elections are over, we will be able to judge the political will to complete the changeover. Various large mining operations are currently engaged in major lighting changeovers; such changes are especially important in the various mines that are directly visible from existing major observatories in Northern Chile. The importance to astronomy is that full compliance with DS686 will, on average, extend the potential useful life of all the major optical observatories in Northern Chile by several decades. Funding for the Office for the Protection of the Quality of the Skies of Chile (OPCC) is provided by the Chilean National Environment Committee (CONAMA), NOAO, Gemini, ESO and the Las Campanas Observatory of the Carnegie Institute of Washington.

  18. Effectiveness of two-sided UV-C treatments in inhibiting natural microflora and extending the shelf-life of minimally processed 'Red Oak Leaf' lettuce.

    PubMed

    Allende, Ana; McEvoy, James L; Luo, Yaguang; Artes, Francisco; Wang, Chien Y

    2006-05-01

    The use of UV-C radiation treatments to inhibit the microbial growth and extend the shelf-life of minimally processed 'Red Oak Leaf' lettuce was investigated. Initially, UV-C resistance of 20 bacterial strains from different genera often associated with fresh produce (Enterobacter, Erwinia, Escherichia, Leuconostoc, Pantoea, Pseudomonas, Rahnela, Salmonella, Serratia and Yersinia) were tested in vitro. Most of the bacterial strains were inhibited with the minimum dose (30 J m(-2)). Erwinia carotovora, Leuconostoc carnosum, Salmonella typhimurium, and Yersinia aldovae were the most resistant strains requiring a UV-C dose of 85 J m(-2) to completely inhibit growth. An in vivo study consisted of treating minimally processed 'Red Oak Leaf' lettuce (Lactuca sativa) with UV-C at three radiation doses (1.18, 2.37 and 7.11 kJ m(-2)) on each side of the leaves and storing the product under passive MAP conditions at 5 degrees C for up to 10 days. The gas composition inside packages varied significantly among the treatments, with CO2 concentrations positively and O2 concentrations negatively correlating with the radiation dose. All the radiation doses were effective in reducing the natural microflora of the product, although the highest doses showed the greatest microbial inhibitions. Taking into account the microbial limit set by Spanish legislation [Boletín Oficial del Estado (BOE), 2001. Normas de higiene para la elaboración, distribución y comercio de comidas preparadas, Madrid, Spain, Real Decreto 3484/2000, pp. 1435-1441], all UV-C treatments extended the shelf-life of the product. However, the 7.11 kJ m(-2) dose induced tissue softening and browning after 7 days of storage at 5 degrees C. Therefore, the use of two sided UV-C radiation, at the proper dose, is effective in reducing the natural microflora and extending the shelf-life of minimally processed 'Red Oak Leaf' lettuce.

  19. 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)

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

    2014-12-01

    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 Hα 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.

  20. Effect of molybdenum treatment on molybdenum concentration and nitrate reduction in maize seedlings.

    PubMed

    Kovács, Béla; Puskás-Preszner, Anita; Huzsvai, László; Lévai, László; Bódi, Éva

    2015-11-01

    Since 1940 molybdenum has been known as an essential trace element in plant nutrition and physiology. It has a central role in nitrogen metabolism, and its deficiency leads to nitrate accumulation in plants. In this study, we cultivated maize seedlings (Zea mays L. cv. Norma SC) in nutrient solution and soil (rhizoboxes) to investigate the effect of molybdenum treatment on the absorption of molybdenum, sulfur and iron. These elements have been previously shown to play important roles in nitrate reduction, because they are necessary for the function of the nitrate reductase enzyme. We also investigated the relationship between molybdenum treatments and different nitrogen forms in maize. Molybdenum treatments were 0, 0.96, 9.6 and 96 μg kg(-1) in the nutrition solution experiments, and 0, 30, 90, 270 mg kg(-1) in the rhizobox experiments. On the basis of our results, the increased Mo level produced higher plant available Mo concentration in nutrient solution and in soil, which resulted increased concentration of Mo in shoots and roots of maize seedlings. In addition it was observed that maize seedlings accumulated more molybdenum in their roots than in their shoots at all treatments. In contrast, molybdenum treatments did not affect significantly either iron or sulfur concentrations in the plant, even if these elements (Mo, S and Fe) play alike important roles in nitrogen metabolism. Furthermore, the physiological molybdenum level (1× Mo = 0.01 μM) reduced NO3-N and enhanced the NH4-N concentrations in seedlings, suggesting that nitrate reduction was more intense under a well-balanced molybdenum supply.

  1. FOREWORD International Conference on Defects in Insulating Materials

    NASA Astrophysics Data System (ADS)

    Valerio, Mário Ernesto Giroldo; Jackson, R. A.

    2010-11-01

    M Suszynska, Poland I Tale, Latvia M E G Valerio, Brasil R T Williams, USA Programme Committee Robert A Jackson (Chair), University of Keele, UK R M Montereali, ENEA C.R. Frascati, Rome, Italy M Moreno, University of Cantabria, Spain Ch Pedrini, University Lyon, France Klaus W H Krambrock, UFMG, MG, Brasil Volkmar Dierolf, Lehigh University, USA Laszlo Kovács, Hungarian Academy of Sciences, Hungary M E G Valerio, UFS, SE, Brasil Local Organizing Committee M E G Valerio, UFS, SE, Brasil Sonia L Baldochi, IPEN, SP, Brasil Klaus W H Krambrock, UFMG, MG, Brasil Livio Amaral, UFRGS, RS, Brasil Ana R Blak, USP, SP, Brasil Marco Cremona, PUC-RJ, RJ, Brasil Anderson S L Gomes, UFPE, PE, Brasil Spero Penha Morato, LaserTools, SP, Brasil Alejandro Ayala, UFC, CE, Brasil ICDIM2008 Sponsors: Sponsors

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

    SciTech Connect

    Pearsons, Todd N.; Fritts, Anthony L.; Temple, Gabriel M.

    2004-05-01

    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

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

    SciTech Connect

    Pearsons, Todd N.; Temple, Gabriel M.; Fritts, Anthony L.

    2005-05-01

    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

  4. Sun-Earth Day - Teaching Heliophysics Through Education Technology

    NASA Technical Reports Server (NTRS)

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

    2010-01-01

    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

  5. NuSTAR J163433-4738.7: A Fast X-Ray Transient in the Galactic Plane

    NASA Technical Reports Server (NTRS)

    Tomsick, John A.; Gotthelf, Eric V.; Rahoui, Farid; Assef, Roberto J.; Bauer, Franz E.; Bodaghee, Arash; Boggs, Steven E.; Christensen, Finn E.; Craig, William W.; Fornasini, Francesca M.; Grindlay, Jonathan; Hailey, Charles J.; Harrison, Fiona A.; Krivonos, Roman; Natalucci, Lorenzo; Stern, Daniel; Zhang, William W.

    2014-01-01

    During hard X-ray observations of the Norma spiral arm region by the Nuclear Spectroscopic Telescope Array (NuSTAR) in 2013 February, a new transient source, NuSTAR J163433-4738.7, was detected at a significance level of 8sigma in the 3-10 keV bandpass. The source is consistent with having a constant NuSTAR count rate over a period of 40 ks and is also detected simultaneously by Swift at lower significance. The source is not significantly detected by NuSTAR, Swift, or Chandra in the days before or weeks after the discovery of the transient, indicating that the strong X-ray activity lasted between approx. 0.5 and 1.5 days. Near-infrared imaging observations were carried out before and after the X-ray activity, but we are not able to identify the counterpart. The combined NuSTAR and Swift energy spectrum is consistent with a power law with a photon index of Gamma = 4.1(+1.5/-1.0) (90% confidence errors), a blackbody with kT = 1.2+/-0.3 keV, or a Bremsstrahlung model with kT = 3.0(+2.1/-1.2) keV. The reduced-?2 values for the three models are not significantly different, ranging from 1.23 to 1.44 for 8 degrees of freedom. The spectrum is strongly absorbed with NH = (2.8(+2.3/-1.4) × 10(exp23) cm(exp-2), (9(+15 /-7) ) × 10(exp22) cm(exp-2), and (1.7(+1.7/-0.9)) × 10(exp23) cm(exp-2), for the power-law, blackbody, and Bremsstrahlung models, respectively. Although the high column density could be due to material local to the source, it is consistent with absorption from interstellar material along the line of sight at a distance of 11 kpc, which would indicate an X-ray luminosity greater than 10(exp34) erg s(exp-1). Although we do not reach a definitive determination of the nature of NuSTAR J163433-4738.7, we suggest that it may be an unusually bright active binary or a magnetar.

  6. [Rectal cancer and Trousseau syndrome. Case report].

    PubMed

    Sierra-Montenegro, Ernesto; Sierra-Luzuriaga, Gastón; Calle-Loffredo, Daniel; Rodríguez Quinde, Miguel

    2013-01-01

    antecedentes: el síndrome de Trousseau se describió por primera vez en 1865; es la relación entre tromboembolismo venoso y cáncer. Objetivo: informar el caso de una paciente con cáncer de recto y síndrome de Trousseau. Caso clínico: paciente femenina de 40 años de edad que acudió al servicio de Coloproctología por rectorragia indolora. La TAC reportó un tumor de 5 por 6cm y del margen anal a 5cm. Se efectuó resección anterior ultrabaja, con reservorio colónico e ileostomía de protección. El reporte de patología fue de: adenocarcinoma semidiferenciado del recto, con clasificación T3N0M0. A las 72 horas del postoperatorio tuvo hipotensión arterial súbita y distensión abdominal dolorosa. En la reintervención quirúrgica se encontró: necrosis del colon desde el ángulo esplénico hasta el reservorio colónico, con trombos en meso, signos de isquemia en el útero, trompa de Falopio y ovarios, piso pélvico y 40 cm de intestino delgado, antes de la ileostomía e íleon. Se realizó hemicolectomía izquierda y colostomía. Se trasladó a la unidad de terapia intensiva donde continuó con la administración de heparina; falleció a los cinco días por insuficiencia multiorgánica. Conclusiones: el mecanismo de este síndrome se desconoce pero existen varias hipótesis: se ha sugerido que los cánceres hematológicos son los que tienen mayor riesgo de trombosis venosa profunda. El cáncer de páncreas se relaciona con este síndrome en 50% de los casos. Se sugiere continuar con las normas de prevención del tromboembolismo.

  7. Translation, Cultural Adaptation and Validation of the Power of Food Scale for Use by Adult Populations in Portugal.

    PubMed

    Ribeiro, Gabriela; Santos, Osvaldo; Camacho, Marta; Torres, Sandra; Mucha-Vieira, Filipa; Sampaio, Daniel; Oliveira-Maia, Albino J

    2015-01-01

    Introdução: A Power of Food Scale é uma escala que avalia um constructo designado por fome hedónica, frequentemente definido como o apetite por alimentos de elevada palatibilidade, mais do que a sua ingestão propriamente dita. Este estudo teve como objetivo a caracterização das propriedades psicométricas de uma versão portuguesa da Power of Food Scale, nomeadamente da sua fiabilidade e validade de constructo. Material e Métodos: Os dados foram obtidos de 1266 participantes adultos, provenientes de três amostras distintas: duas amostras não clínicas e uma amostra clínica de indivíduos com obesidade severa, candidatos a cirurgia da obesidade. Resultados: Verificamos que a estrutura factorial da versão portuguesa da Power of Food Scale é semelhante à do questionário original e que apresenta fiabilidade teste-reteste e validade de constructo adequadas. Adicionalmente, apresentamos neste estudo o primeiro contributo para a definição de normas populacionais para os scores da Power of Food Scale. Discussão: A versão portuguesa da Power of Food Scale apresentou boas propriedades psicométricas: é um instrumento válido e fiável para a avaliação do constructo fome hedónica, suportando a sua utilização tanto em amostras clínicas como não clínicas, bem como em estudos longitudinais. Conclusão: Estes resultados demostram que a versão portuguesa da Power of Food Scale é um instrumento útil, tanto em contexto clínico, como de investigação, nomeadamente para o estudo do constructo fome hedónica em populações de língua portuguesa, incluindo populações clínicas de indivíduos com obesidade.

  8. FOREWORD: V S Letokhov

    NASA Astrophysics Data System (ADS)

    Stroke, H. Henry; Linnartz, Harold

    2012-04-01

    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

  9. [Prevalence of obesity and altered lipid profile in university students].

    PubMed

    González Sandoval, Claudia Elena; Díaz Burke, Yolanda; Mendizabal-Ruiz, Adriana Patricia; Medina Díaz, Eunice; Morales, José Alejandro

    2014-02-01

    Introducción: La obesidad constituye un grave problema de salud pública por su asociación con los riesgos a desarrollar enfermedades crónicas. La dislipidemia aterogénica que acompaña con frecuencia a la obesidad también está asociada al síndrome metabólico y a las enfermedades cardiovasculares. La transición entre la adolescencia y el adulto es un periodo con modificaciones importantes en el estilo de vida que contribuyen al desarrollo de la obesidad, sin embargo es poca la atención brindada a esta etapa. La tendencia a adoptar comportamientos poco saludables durante esta transición puede incrementarse en los universitarios que llevan un estilo de vida caracterizado por la falta de tiempo para llevar una dieta saludable, haciéndolos susceptibles a desarrollar obesidad. Objetivo: Determinar la prevalencia de la obesidad y de las anormalidades en los niveles de lípidos y su relación en un grupo de universitarios. Métodos: Estudio transversal que evalúa Índice de Masa Corporal, diámetro de cintura y perfil de lípidos en universitarios con un rango de edad de 18 a 24 años. Resultados: De los 620 jóvenes estudiados, aproximadamente un tercio tienen sobrepeso u obesidad. El 86% presentó al menos una alteración en los parámetros evaluados. Los resultados del perfil lipídico muestran alta prevalencia de alteraciones leves, particularmente en los niveles de colesterol ligado a lipoproteínas de baja densidad. Conclusiones: Los jóvenes Universitarios presentan alta prevalencia de lípidos plasmáticos por encima de la norma y exceso de peso. Es necesario establecer medidas preventivas dirigidas a promover en los universitarios buenos hábitos alimenticios y mayor actividad física.

  10. [Evaluation of good manufacturing practices in the elaboration of enteral formulas in public hospitals of Santiago (Chile)].

    PubMed

    Lara González, Sandra; Domecq Jendres, C; Atalah Samur, Eduardo

    2013-11-01

    Antecedentes: La Elaboración de fórmulas enterales está sujeta a diversos riesgos de contaminación. La Organización Mundial de la Salud (OMS) y la Organización para la Alimentación y la Agricultura (FAO) han emitido alertas y recomendaciones para su prevención, sugiriendo la estandarización y protocolización de todos los procedimientos involucrados. Objetivo: Elaborar y evaluar el cumplimiento de los criterios técnicos de una Pauta de Verificación de Buenas Prácticas de Manufactura, con relación a elaboración, conservación y administración de fórmulas enterales en hospitales de la provincia de Santiago. Material y métodos: Los criterios de verificación consideraron Planta Física, Equipamiento e Implementación, Normas Higiénicas y Sanitarias, Recurso Humano, Organización y Administración, Garantía de Inocuidad y Aseguramiento de la Calidad. Se definieron 639 criterios, 309 de Riesgo Tipo 1, por mayor riesgo de producir contaminación. El estudio se hizo por observación de las Unidades de Central de Fórmulas Enterales y entrevista con el profesional encargado. Se analizó la mediana de cumplimiento de cada grupo de criterios de riesgo tipo 1 y total. Resultados: Se evaluaron públicos 14 hospitales. El grado de cumplimiento de los 639 alcanzó una mediana de 33,2% (p25-75 31,6% -40,4%), con el valor más bajo para planta física con 27,9% (p25-75 23,9% -38,2%) y el mayor para recurso humano con 52,4% (p25-75 44,1%-52,4%). La mediana de grado de cumplimiento para Criterios Riesgo Tipo 1, fue sólo de 31,8% (p25-75 27,5% - 41,2%). Conclusión: La mayoría de las Unidades evaluadas, cumple con menos de la mitad de las recomendaciones internacionales o del Ministerio de Salud de Chile. Se deben elaborar protocolos y capacitar al personal para asegurar la calidad e inocuidad en la elaboración de fórmulas enterales y reducir los riesgos de infección.

  11. 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)

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

    2015-01-01

    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

  12. NuSTAR J163433-4738.7: A fast X-ray transient in the galactic plane

    SciTech Connect

    Tomsick, John A.; Bodaghee, Arash; Boggs, Steven E.; Craig, William W.; Fornasini, Francesca M.; Krivonos, Roman; Gotthelf, Eric V.; Hailey, Charles J.; Rahoui, Farid; Assef, Roberto J.; Bauer, Franz E.; Christensen, Finn E.; Grindlay, Jonathan; Harrison, Fiona A.; Natalucci, Lorenzo; Stern, Daniel; Zhang, William W.

    2014-04-10

    During hard X-ray observations of the Norma spiral arm region by the Nuclear Spectroscopic Telescope Array (NuSTAR) in 2013 February, a new transient source, NuSTAR J163433-4738.7, was detected at a significance level of 8σ in the 3-10 keV bandpass. The source is consistent with having a constant NuSTAR count rate over a period of 40 ks and is also detected simultaneously by Swift at lower significance. The source is not significantly detected by NuSTAR, Swift, or Chandra in the days before or weeks after the discovery of the transient, indicating that the strong X-ray activity lasted between ∼0.5 and 1.5 days. Near-infrared imaging observations were carried out before and after the X-ray activity, but we are not able to identify the counterpart. The combined NuSTAR and Swift energy spectrum is consistent with a power law with a photon index of Γ=4.1{sub −1.0}{sup +1.5} (90% confidence errors), a blackbody with kT = 1.2 ± 0.3 keV, or a Bremsstrahlung model with kT=3.0{sub −1.2}{sup +2.1} keV. The reduced-χ{sup 2} values for the three models are not significantly different, ranging from 1.23 to 1.44 for 8 degrees of freedom. The spectrum is strongly absorbed with N{sub H}=(2.8{sub −1.4}{sup +2.3})×10{sup 23} cm{sup –2}, (9{sub −7}{sup +15})×10{sup 22} cm{sup –2}, and (1.7{sub −0.9}{sup +1.7})×10{sup 23} cm{sup –2}, for the power-law, blackbody, and Bremsstrahlung models, respectively. Although the high column density could be due to material local to the source, it is consistent with absorption from interstellar material along the line of sight at a distance of 11 kpc, which would indicate an X-ray luminosity >10{sup 34} erg s{sup –1}. Although we do not reach a definitive determination of the nature of NuSTAR J163433-4738.7, we suggest that it may be an unusually bright active binary or a magnetar.

  13. The Interstellar Cloud Surrounding the Solar System

    NASA Astrophysics Data System (ADS)

    Frisch, P. C.

    Ultraviolet spectral data of nearby stars indicate that the cloud surrounding the solar system has an average neutral density n(HI)~0.1 cm-3, temperature ~6800 K, and turbulence ~1.7 km/s. Comparisons between the anomalous cosmic ray data and ultraviolet data suggest that the electron density is in the range n(e-)~0.22 to 0.44 cm-3. This cloud is flowing past the Sun from a position centered in the Norma-Lupis region. The cloud properties are consistent with interstellar gas which originated as material evaporated from the surfaces of embedded clouds in the Scorpius-Centaurus Association, and which was then displaced towards the Sun by a supernova event about 4 Myrs ago. The Sun and surrounding cloud velocities are nearly perpendicular in space, and this cloud is sweeping past the Sun. The morphology of this cloud can be reconstructed by assuming that the cloud moves in a direction parallel to the surface normal. With this assumption, the Sun entered the surrounding cloud 2000 to 8000 years ago, and is now about 0.05 to 0.16 pc from the cloud surface. Prior to its recent entry into the surrounding cloud complex, the Sun was embedded in a region of space with average density lower than 0.0002 cm-3. If a denser cloud velocity component seen towards alpha Cen A,B is real, it will encounter the solar system within 50,000 yr. The nearby magnetic field seen upwind has a spatial orientation that is parallel to the cloud surface. The nearby star Sirius is viewed through the wake of the solar system, but this direction also samples the hypothetical cloud interface. Comparisons of anomalous cosmic ray and interstellar absorption line data suggest that trace elements in the surrounding cloud are in ionization equilibrium. Data towards nearby white dwarfs indicate partial helium ionization, N(N(HI)(/N(HeI)>~13.7, which is consistent with pickup ion data within the solar system if less than 40% hydrogen ionization occurs in the heliopause region. However, the white dwarfs may

  14. Policies for control and prevention of infections related to healthcare assistance in Brazil: a conceptual analysis.

    PubMed

    Oliveira, Hadelândia Milon de; Silva, Cristiane Pavanello Rodrigues; Lacerda, Rúbia Aparecida

    2016-01-01

    This article is a theoretical-reflexive study that aims to discuss the development and changes in the quality of healthcare assistance to the patient over the years in Brazil, in light of the policies of control and prevention of Healthcare-associated Infection (HAI). Aspects of HAI and the process of change in health policy in Brazil, as well as the quality of assistance associated with its control, are approached in relation to policies of patient safety. There are various new theoretical and practical proposals created in Brazil. In spite of the difficulty of measuring patient safety, directed to the prevention and control of HAI, we emphasize that to only create policies and establish norms, guidelines, and indicators is not sufficient. If no structural support or conditions exist for interventions in the practices of healthcare professionals, aiming at results in acceptable levels, the control of HAI will not be achieved. Resumo Trata-se um estudo teórico-reflexivo, que objetiva discutir a evolução e as mudanças na qualidade da assistência ao paciente, ao longo dos anos no Brasil, à luz das políticas de controle e prevenção da Infecção Relacionada à Assistência à Saúde (IRAS). Aspectos sobre IRAS e o processo de mudança nas políticas de saúde no Brasil, bem como a qualidade da assistência associada ao seu controle, são abordados em relação às políticas de segurança do paciente. Há novas e várias propostas teóricas e práticas criadas no Brasil. Apesar da dificuldade de medir a segurança do paciente, direcionada à prevenção e controle das IRAS, enfatiza-se que somente criar políticas, estabelecer normas, diretrizes e indicadores não são suficientes. Se não houver suporte de estrutura e condições para as intervenções nas práticas dos profissionais na assistência prestada ao paciente, visando resultados em níveis aceitáveis, o controle das IRAS não será alcançado.

  15. [In Process Citation].

    PubMed

    Gómez-Campos, Rossana; Bersano Benavides, Gonzalo; Luarte-Rocha, Cristian; Tumi Figueroa, Ernesto Nayer; Urra Albornoz, Camilo; Sulla-Torres, Jose; Cossio-Bolaños, Marco Antonio

    2016-03-25

    Objetivo: validar un cuestionario para medir la preocupación por la alimentación de los adolescentes, verificar la fiabilidad y desarrollar valores normativos en función de la edad, sexo y categoría. Metodología: se estudió a 3.121 (1.645 hombres y 1.476 mujeres) adolescentes de 11,0 a 18,9 años de cinco establecimientos municipales de la región del Maule, Chile. Se evaluó el peso, estatura y se calculó el índice de masa corporal. Se aplicó un cuestionario que mide la preocupación por la alimentación de adolescentes escolares. Se validó por análisis confirmatorio y la fiabilidad se determinó por consistencia interna. Resultados: el análisis factorial confirmó la presencia de cuatro factores (preocupación por la restricción de la comida, preocupación por el consumo de comida, preocupación por la forma de comer y preocupación por el peso corporal). Se eliminaron 5 preguntas que mostraron saturaciones inferiores a 0,39. El instrumento quedó conformado con 24 preguntas que explican 51,8% de la varianza. El alpha de Cronbach mostró valores entre 0,85 y 0,88. Se construyeron percentiles (p15, p50 y p85) a partir del método LMS para valorar la preocupación por la alimentación por categoría, edad y sexo. Conclusión: el instrumento desarrollado es válido y confiable y sirve para valorar el nivel de preocupación por la alimentación de adolescentes escolares. Además, las normas propuestas podrían servir a los profesionales del sistema educativo para llevar a cabo tareas de prevención con los jóvenes que evidencien bajos niveles de preocupación por su alimentación.

  16. Spirituality and Cultural Identification Among Latino and Non-Latino College Students

    PubMed Central

    Campesino, Maureen; Belyea, Michael; Schwartz, Gary

    2010-01-01

    The purposes of this study were to examine (a) differences in spiritual perspectives and practices of Latino and non-Latino young adults and (b) the cultural relevance of the Latino Spiritual Perspective Scale (LSPS). Studies indicate that spiritual perspectives are embedded within cultural group norms and vary significantly across ethnic groups. A cross-sectional survey design was used with a convenience sample of 223 Latino and non-Latino university students in the Southwestern United States. The Spiritual Perspective Scale (SPS), the LSPS, the Orthogonal Cultural Identification Scale, and a demographic questionnaire were used. Latinos scored significantly higher than non-Latinos in both measures of spiritual perspectives. Self-reported behavioral measures, such as frequency of personal prayer, were also higher among the Latino group. Latino cultural identification was the only significant predictor of LSPS scores. Findings from this study indicate that spirituality among Latinos has meanings specific to the cultural group context. These findings have implications for nursing research involving the conceptualization and measurement of spirituality among multiethnic groups. Los propósitos de este estudio eran examinar: (a) diferencias en perspectivas espirituales y prácticas de jóvenes Latinos y no Latinos; y (b) la relevancia cultural de la Escala de la Perspectiva Espiritual Latina. Estudios indican que perspectivas espirituales están incrustadas entre normas culturales del grupo y varían considerablemente entre grupos étnicos. Un diseño transversal y de encuesta fue utilizado con una muestra de conveniencia de 233 estudiantes universitarios Latinos y no Latinos en el Suroeste de los Estados Unidos. La Escala de la Perspectiva Espiritual (EPE), la Escala de la Perspectiva Espiritual Latina (EPEL), la Escala Ortogonal de Identificación Cultural, y un cuestionario demográfico fueron utilizados. Los Latinos calificaron considerablemente más alto que los

  17. Spirituality and Cultural Identification Among Latino and Non-Latino College Students.

    PubMed

    Campesino, Maureen; Belyea, Michael; Schwartz, Gary

    2009-01-01

    The purposes of this study were to examine (a) differences in spiritual perspectives and practices of Latino and non-Latino young adults and (b) the cultural relevance of the Latino Spiritual Perspective Scale (LSPS). Studies indicate that spiritual perspectives are embedded within cultural group norms and vary significantly across ethnic groups. A cross-sectional survey design was used with a convenience sample of 223 Latino and non-Latino university students in the Southwestern United States. The Spiritual Perspective Scale (SPS), the LSPS, the Orthogonal Cultural Identification Scale, and a demographic questionnaire were used. Latinos scored significantly higher than non-Latinos in both measures of spiritual perspectives. Self-reported behavioral measures, such as frequency of personal prayer, were also higher among the Latino group. Latino cultural identification was the only significant predictor of LSPS scores. Findings from this study indicate that spirituality among Latinos has meanings specific to the cultural group context. These findings have implications for nursing research involving the conceptualization and measurement of spirituality among multiethnic groups.Los propósitos de este estudio eran examinar: (a) diferencias en perspectivas espirituales y prácticas de jóvenes Latinos y no Latinos; y (b) la relevancia cultural de la Escala de la Perspectiva Espiritual Latina. Estudios indican que perspectivas espirituales están incrustadas entre normas culturales del grupo y varían considerablemente entre grupos étnicos. Un diseño transversal y de encuesta fue utilizado con una muestra de conveniencia de 233 estudiantes universitarios Latinos y no Latinos en el Suroeste de los Estados Unidos. La Escala de la Perspectiva Espiritual (EPE), la Escala de la Perspectiva Espiritual Latina (EPEL), la Escala Ortogonal de Identificación Cultural, y un cuestionario demográfico fueron utilizados. Los Latinos calificaron considerablemente más alto que los no

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

    SciTech Connect

    Merello, Manuel; Bronfman, Leonardo; Garay, Guido; Nyman, Lars-Ake; Evans, Neal J. II; Walmsley, C. Malcolm

    2013-09-01

    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

  19. Thermalization of Interstellar CO

    NASA Astrophysics Data System (ADS)

    Oka, Takeshi; Xiao, Han; Lynch, Phillip

    2009-06-01

    Unlike radio emission of CO, infrared absorption of CO give column densities in each rotational level directly when weak transitions like overtone bands or ^{13}CO or C^{18}O isotope bands are used. This allows more straightforward determination of temperature (T) and density (n) of the environment than the large velocity gradient (LVG) model used to determine them from antenna temperatures of radio emission. In order to facilitate such determination, we have solved the steady state linear simultaneous equations for thermalization of CO and calculated population ratios of rotational levels as a function of T and n as we did for H_3^+. We thus get two-dimensional graph of column density ratios, for example, N(J=1)/N(J=0) and N(J=2)/N(J=0) as a function of T and n or variation of it when other population ratios are used. As for H_3^+ we can invert the graph to obtain graphs of T versus n as functions of population ratios which is more convenient to apply to observed data. We use rate constants of collision-induced transitions between CO and ortho- and para-H_2 theoretically calculated by Fowler and Wernli et al. which have been compiled and extended by Schöier et al. As the first approximation, only spontaneous emissions are considered and other radiative effects such as induced emission and absorption are ignored. The results are applied to CO column densities observed toward the Galactic center, that is, CO in the three spiral arms, 3-kpc (Norma), 4.5-kpc (Scutum), and local arms (Sagittarius), and in the Central Molecular Zone. T. Oka and E. Epp, ApJ, 613, 349 (2004) M. Goto, Usuda, Nagata, Geballe, McCall, Indriolo, Suto, Henning, Morong, and Oka, ApJ, 688, 306 (2008) D. R. Fowler, J. Phys. B: At. Mol. Opt. Phys. 34, 2731 (2001) M. Wernli, P. Valiron, A. Faure, L. Wiesenfeld, P. Jankowski, and K. Szalewicz, A & A, 446, 367 (2006) F. L. Schöier, F. F. S. van der Tak, E. F. van Dishoeck, and J. H. Black, A & A, 432, 369 (2005)

  20. FOOD CONSUMPTION PATTERNS DURING PREGNANCY: A LONGITUDINAL STUDY IN A REGION OF THE NORTH EAST OF BRAZIL.

    PubMed

    Da Mota Santana, Jerusa; Alves de Oliveira Queiroz, Valterlinda; Monteiro Brito, Sheila; Barbosa Dos Santos, Djanilson; Marlucia Oliveira Assis, Ana

    2015-07-01

    Introducción: las perspectivas de crecimiento en Brasil indican que los patrones dietéticos de la población se caracterizan por el aumento del consumo de grasas saturadas y trans, sodio, azúcares y refrescos. Este punto de vista epidemiológico y nutricional refleja el cambio en el patrón de la enfermedad y la muerte. Objetivo: este estudio tiene como objetivo identificar los patrones de consumo de alimentos y los cambios en la dieta en el primer y tercer trimestres del embarazo. Metodología: se trata de un estudio de cohorte prospectivo de 185 mujeres embarazadas del Estado de Bahía, a partir de 2012 a 2013. Se utilizó el cuestionario de frecuencia de alimentos para evaluar la ingesta alimentaria. Para identificar la norma alimentaria se adoptó el análisis factorial de componentes principales. Se utilizó la prueba de correlación de Pearson para identificar la correlación entre los patrones extraídos en cada trimestre. Resultados: se identificaron cuatro patrones de consumo de alimentos durante el embarazo. Hemos observado cambios en los patrones de alimentación durante los trimestres evaluados, especialmente para los grupos de frutas, café, grasas, frituras, azúcar y dulces. Discusión: estos cambios en la dieta durante el embarazo acompañan a los cambios fisiológicos de cada embarazo. En el primer trimestre son síntomas comunes las náuseas y los vómitos; por otro lado, también se manifiesta antojos en el mismo periodo, lo cual puede justificar el consumo de mayor cantidad de alimentos considerados saludables. Conclusión: se observaron cambios en el patrón alimentario a lo largo de los diversos trimestres del embarazo examinados, especialmente para los grupos de frutas, café, grasas, frituras, azúcar y dulces.