963 resultados para Penn theses
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Includes bibliography
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This is a survey of the procurement, organization and use of unpublished projects, theses, and Africana mateials in Hezekiah Oluwasanmi Library, Obafemi Awolowo University, Ile-Ife, Nigeria. The Africana section conserves knowledge, preserves cultural heritage, provides information, and supports education and research. This paper the location, mode of processing, circulation, and terms of availability of these materials. Recommendations are made on how to manage Africana materials in academic libraries where they constitute a vital component of collections.
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Entrevista realizada a María del Carmen Martín Marichal, directora de la Biblioteca Universitaria de la ULPGC, por la periodista Teresa Cárdenes en el programa de radio Teresa a las 8. La entrevista versa sobre la incorporación de las tesis de Acceda en Open Access Theses and Dissertations (OATD), también sobre los distintos servicios qu se ofrecen a los usuarios de la Biblioteca.
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This study investigates the effect of cell phones on economic development and growth by performing an econometric analysis using data from the International Telecommunications Union and the Penn World Table. It discusses the various ways cell phones can make markets more efficient and how the diffusion of information andknowledge plays into development. Several approaches (OLS, Fixed Effects, 2SLS) were used to test over 20 econometric models. Overall, the mobile cellular subscriptions rate was found to have a positive and significant impact on countries’ level of real per capitaGDP and GDP growth rate. Furthermore, the study provides policy implications for the use of technology to promote global growth.
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Studying liquid fuel combustion is necessary to better design combustion systems. Through more efficient combustors and alternative fuels, it is possible to reduce greenhouse gases and harmful emissions. In particular, coal-derived and Fischer-Tropsch liquid fuels are of interest because, in addition to producing fewer emissions, they have the potential to drastically reduce the United States' dependence on foreign oil. Major academic research institutions like the Pennsylvania State University perform cutting-edge research in many areas of combustion. The Combustion Research Laboratory (CRL) at Bucknell University is striving to develop the necessary equipment to be capable of both independent and collaborative research efforts with Penn State and in the process, advance the CRL to the forefront of combustion studies. The focus of this thesis is to advance the capabilities of the Combustion Research Lab at Bucknell. Specifically, this was accomplished through a revision to a previously designed liquid fuel injector, and through the design and installation of a laser extinction system for the measurement of soot produced during combustion. The previous liquid fuel injector with a 0.005" hole did not behave as expected. Through spray testing the 0.005" injector with water, it was determined that experimental errors were made in the original pressure testing of the injector. Using data from the spray testing experiment, new theoretical hole sizes of the injector were calculated. New injectors with 0.007" and 0.0085" orifices were fabricated and subsequently tested to qualitatively validate their behavior. The injectors were installed in the combustion rig in the CRL and hot-fire tested with liquid heptane. The 0.0085" injector yielded a manageable fuel pressure and produced a broad flame. A laser extinction system was designed and installed in the CRL. This involved the fabrication of a number of custom-designed parts and the specification of laser extinction equipment for purchase. A standard operating procedure for the laser extinction system was developed to provide a consistent, safe method for measuring soot formation during combustion.
Towards optimal treatment with growth hormone in short children and adolescents: evidence and theses
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Treatment with growth hormone (GH) has become standard practice for replacement in GH-deficient children or pharmacotherapy in a variety of disorders with short stature. However, even today, the reported adult heights achieved often remain below the normal range. In addition, the treatment is expensive and may be associated with long-term risks. Thus, a discussion of the factors relevant for achieving an optimal individual outcome in terms of growth, costs, and risks is required. In the present review, the heterogenous approaches of treatment with GH are discussed, considering the parameters available for an evaluation of the short- and long-term outcomes at different stages of treatment. This discourse introduces the potential of the newly emerging prediction algorithms in comparison to other more conventional approaches for the planning and evaluation of the response to GH. In rare disorders such as those with short stature, treatment decisions cannot easily be deduced from personal experience. An interactive approach utilizing the derived experience from large cohorts for the evaluation of the individual patient and the required decision-making may facilitate the use of GH. Such an approach should also lead to avoiding unnecessary long-term treatment in unresponsive individuals.
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Vorbesitzer: Johann Hartmann Beyer
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Vorbesitzer: Johann Hartmann Beyer
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Signatur des Originals: S 36/F11588
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Fecha tomada del tít
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Tesis-Universitat de València
Theses ex logica metaphysica et ethica quas pro baccalaureatus gradu... D. Thoma Aquinate opitulante
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El autor aparece en an. ms. después del "defendet"
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Sign. : A2, B4
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Sign. : []3, A-B4, C1
