275 research outputs found

    Questimonial: Slaughterhouse-Five or The Children\u27s Crusade, A Graphic Novel Adaptation

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    The novel Slaughterhouse-Five by Kurt Vonnegut is often hailed as a classic anti-war novel due to its realistic portrayal of the devastation caused by war. But its creative use of fantastical elements from science fiction also show how trauma can “unstick” a human being from the natural order of things. The graphic novel adaptation, written by Ryan North with art by Albert Monteys, was published in 2020 and brings with it a fresh new way to enjoy this classic.https://digitalcommons.ursinus.edu/questimonials/1000/thumbnail.jp

    Digital Commons Report for Fiscal Years 2017-18 Through 2019-20

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    This report studies the growth of Ursinus College\u27s institutional repository over a three year period. It includes readership statistics, growth activity and a collections analysis. It also discusses opportunities for the repository to support the curriculum and mission of Ursinus College

    E-Resource Collection Development: A Survey of Current Practices in Academic Libraries

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    The extent of e-resources available for libraries to purchase is overwhelming. This survey examined how libraries are managing their e-collections. The authors looked at how collection development decisions are made; the role of librarians, administrators, faculty, students, and consortia; and what criteria are being used. The authors finish with suggestions for best practices

    Elektrostatische Charge Zipper in membranständigen Proteinen

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    Comments on the classical theory of energy transfer

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    Energy transfer from an emitting molecule to an absorbing half-space is considered from the viewpoint of electromagnetic theory. The lifetime of a dipole emitter in the presence of a mirror is determined through a calculation of the complex Poynting vector in the dielectric surrounding the dipole. This method has the advantage over previous approaches to this problem in that the radiative and nonradiative components of the lifetime expression may be rigorously separated. The influence on emitter lifetime of a mirror of finite thickness is also described. A simple .expression is derived describing the energy transfer rate in these layered systems. It is shown that nonradiative energy transfer results from coupling of the near field of the dipole to the surface plasmon modes in the metallic absorber. The Forster energy transfer rate law is discussed in the context of the present theory

    O CONCEITO DE MUNDO EM SER E TEMPO DE HEIDEGGER E O LEBENSWELT DE HUSSERL, UMA ANÁLISE COMPARATIVA

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    O objetivo deste trabalho consiste no esclarecimento do fenômeno de mundo, tendo em vista à sua mundidade, na obra de Ser e Tempo de Heidegger, e com isso conduzir uma análise comparativa com relação à categoria transcendental de Lebenswelt de Husserl. Para tanto, buscamos apresentar o fenômeno da mundidade em seu sentido mais originário tal como descrito por Heidegger em Ser e Tempo, de modo a articular um diálogo com a perspectiva husserliana acerca do Lebenswelt na obra A crise das ciências europeias e a fenomenologia transcendental. Com as exposições teóricas apresentadas, buscamos à guisa de conclusão explicitar o gesto filosófico comum aos dois autores em questão, qual seja: atingir um mundo pré-categorial – Heidegger através da fenomenologia hermenêutica, Husserl por meio da fenomenologia transcendental

    Ethanol induces cell-cycle activity and reduces stem cell diversity to alter both regenerative capacity and differentiation potential of cerebral cortical neuroepithelial precursors

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    BACKGROUND: The fetal cortical neuroepithelium is a mosaic of distinct progenitor populations that elaborate diverse cellular fates. Ethanol induces apoptosis and interferes with the survival of differentiating neurons. However, we know little about ethanol's effects on neuronal progenitors. We therefore exposed neurosphere cultures from fetal rat cerebral cortex, to varying ethanol concentrations, to examine the impact of ethanol on stem cell fate. RESULTS: Ethanol promoted cell cycle progression, increased neurosphere number and increased diversity in neurosphere size, without inducing apoptosis. Unlike controls, dissociated cortical progenitors exposed to ethanol exhibited morphological evidence for asymmetric cell division, and cells derived from ethanol pre-treated neurospheres exhibited decreased proliferation capacity. Ethanol significantly reduced the numbers of cells expressing the stem cell markers CD117, CD133, Sca-1 and ABCG2, without decreasing nestin expression. Furthermore, ethanol-induced neurosphere proliferation was not accompanied by a commensurate increase in telomerase activity. Finally, cells derived from ethanol-pretreated neurospheres exhibited decreased differentiation in response to retinoic acid. CONCLUSION: The reduction in stem cell number along with a transient ethanol-driven increase in cell proliferation, suggests that ethanol promotes stem to blast cell maturation, ultimately depleting the reserve proliferation capacity of neuroepithelial cells. However, the lack of a concomitant change in telomerase activity suggests that neuroepithelial maturation is accompanied by an increased potential for genomic instability. Finally, the cellular phenotype that emerges from ethanol pre-treated, stem cell depleted neurospheres is refractory to additional differentiation stimuli, suggesting that ethanol exposure ablates or delays subsequent neuronal differentiation

    Social Workers’ Perceptions of Working with People who have HIV/AIDS

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    This article presents the results of a cross-sectional online survey sent to a national sample of licensed social workers to examine their attitudes toward individuals living with HIV/AIDS. The survey included the AIDS Attitude Scale (Froman, Owen & Daisy, 1992), the HIV Knowledge Questionnaire-18 (Carey & Schroder, 2002), and the Modern Homonegativity Scale (Morrison & Morrison, 2002). Factors related to education, training, and other personal characteristics are explored. In this sample, 45% of the social workers indicated that more education and training would be beneficial to them in their current position, and greater HIV knowledge was associated with more positive attitudes toward people living with HIV/AIDS. Additionally, 57% of those surveyed indicated knowing someone personally who has HIV/AIDS, and demonstrated overall higher scores on empathy, and lower scores on avoidance. Those social workers who had higher avoidance of people living with HIV/AIDS were also found to be higher in homonegativity. The findings of this study add to the body of knowledge regarding social work attitudes, and provide further insight into an area with little existing data. The authors propose further research to identify causes of attitudes, potential gender and cultural differences, and the impact of the National Association of Social Workers Code of Ethics on social workers’ attitudes
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