998 research outputs found

    Sanguine Salvation: Pilgrimage and Penance at the Sanctuary of Chimayo

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    Senior Project submitted to The Division of Arts of Bard Colleg

    Diffuse somatostatin-immunoreactive D-cell hyperplasia in the stomach and duodenum

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    This paper presents the first case of extensive, diffuse, somatostatin- immunoreactive D-cell hyperplasia in the human stomach and duodenum. It occurred in a 37-yr-old woman, who showed clinical signs of dwarfism, obesity, dryness of the mouth, and goiter. The density of the distribution of D cells was increased 39-fold in the stomach fundus, 23- fold in the proximal antrum, 25-fold in the distal antrum, and 31-fold in the upper duodenum in comparison with normal values. At the same time, the gastrin-immunoreactive cells were increased 2.3-fold in the antrum. Although the range in size of the D cells was within normal limits in all regions examined, the G cells showed pronounced hypertrophy of up to 127%. A possible relationship between the immuno- histochemical findings and the clinical picture is discussed

    Examining measures of schizotypy for racial and gender bias using item response theory and differentiral item functioning

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    Schizotypy, a latent personality organization reflecting liability for schizophrenia, includes abnormalities and deficits in functioning and traits which cluster into positive, negative, and disorganized dimensions (Lenzenweger, 2018). Research within schizotypy provides useful information regarding etiological mechanisms and risk and protective factors for schizophreniaspectrum conditions without the presence of confounds such as medication effects and pronounced cognitive deficits associated with schizophrenia-spectrum disorders. The Magical Ideation Scale (MagicId), Perceptual Aberration Scale (PerAb), Revised Social Anhedonia Scale (RSAS), and the Cognitive Slipage Scale (CSS; Chapman et al., 1976; Chapman et al., 1980; Eckblad & Chapman, 1983; Eckblad et al., 1982; Miers & Raulin, 1987) are a collection of scales which have historically been used to measure schizotypy. A critical and unresolved issue is to what extent measures of schizotypy show racial and gender bias in their assessment with recent evidence suggesting these scales possess biased items. This current study examined racial and gender biases in items of the scales with the use of Item Response Theory (IRT) to test for levels of differential item functioning (DIF). Only two previous studies have used IRT analysis to test for racial and gender bias within the MagicId, PerAb, and/or SocAnh scales and this study was the first for the CSS. I had data for the following racial/ethnic categories: Black (African- American), Asian American, Hispanic, Multiracial, and White. Overall, I found some evidence for gender bias as well as racial bias (especially when comparing Black versus White participants) for some of these scales.Includes bibliographical references

    Summary of Sessions: Ionosphere - Thermosphere - Mesosphere Working Group

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    The topics covered by the sessions under the working group on Ionosphere-Thermosphere-Mesosphere dealt with various aspects of the response of the ionosphere-thermosphere coupled system and the middle atmosphere to solar variability. There were four plenary talks related to the theme of this working group, thirteen oral presentations in three sessions and six poster presentations. A number of issues related to effects of solar variability on the ionosphere-thermosphere, observed using satellite and ground-based data including ground magnetometer observations, radio beacon studies of equatorial spread F, and modeling of some of these effects, were discussed. Radar observations of the mesosphere-lower thermosphere region and a future mission to study the coupling of thunderstorm processes to this region, the ionosphere, and magnetosphere were also presented

    High temperature properties of sodium, potassium, and cesium thirteenth progress report

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    Thermophysical properties of sodium, potassium, and cesium at high temperatures - density of liquid potassium and vapor pressure of cesiu

    Mars Meteorolgical Network

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    Exploring and ultimately establishing a permanent presence on the surface of Mars will necessitate an understanding the weather conditions and the ability to forecast its dynamic behavior. The meteorology of Mars will need to be developed. This abstract puts forth a concept for a Mars Meteorological Network that will be used to investigate the Mars atmosphere behavior, explore the surface environment, and prepare for operational activities. It is proposed that the long term and the dynamic nature of the lower atmosphere and surface of Mars be observed with a distributed global array of simple automated surface nodes. The data would be ingested into the Mars Global Reference Atmospheric Model (Mars-GRAM) and other research tools for analyses to gain a better understanding of the atmospheric conditions on Mars

    The Radiation, Interplanetary Shocks, and Coronal Sources (RISCS) Toolset

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    We outline a plan to develop a physics based predictive toolset RISCS to describe the interplanetary energetic particle and radiation environment throughout the inner heliosphere, including at the Earth. To forecast and "nowcast" the radiation environment requires the fusing of three components: 1) the ability to provide probabilities for incipient solar activity; 2) the use of these probabilities and daily coronal and solar wind observations to model the 3D spatial and temporal heliosphere, including magnetic field structure and transients, within 10 AU; and 3) the ability to model the acceleration and transport of energetic particles based on current and anticipated coronal and heliospheric conditions. We describe how to address 1) - 3) based on our existing, well developed, and validated codes and models. The goal of RISCS toolset is to provide an operational forecast and "nowcast" capability that will a) predict solar energetic particle (SEP) intensities; b) spectra for protons and heavy ions; c) predict maximum energies and their duration; d) SEP composition; e) cosmic ray intensities, and f) plasma parameters, including shock arrival times, strength and obliquity at any given heliospheric location and time. The toolset would have a 72 hour predicative capability, with associated probabilistic bounds, that would be updated hourly thereafter to improve the predicted event(s) and reduce the associated probability bounds. The RISCS toolset would be highly adaptable and portable, capable of running on a variety of platforms to accommodate various operational needs and requirements

    Technology transfer from NASA to targeted industries, volume 2

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    This volume contains the following materials to support Volume 1: (1) Survey of Metal Fabrication Industry in Alabama; (2) Survey of Electronics Manufacturing/Assembly Industry in Alabama; (3) Apparel Modular Manufacturing Simulators; (4) Synopsis of a Stereolithography Project; (5) Transferring Modular Manufacturing Technology to an Apparel Firm; (6) Letters of Support; (7) Fact Sheets; (8) Publications; and (9) One Stop Access to NASA Technology Brochure

    Informe sobre el origen de la catástrofe de Chavin de Huántar

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    El autor complementa el estudio de Indacochea e lberico sobre el aluvionamiento del valle de Huachecsa y la famosa población de Chavín de Huántar, demostrando que se debió a un repentino deslizamiento de roca y hielo o avalancha del cerro Huantsán, que desplazó el agua de las lagunas Ayhuiñaraju y Carhuacocha en las nacientes del valle
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