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PITTETD 檢索結果共 4141 筆,本頁資料從第 181 筆到第 192 筆

Designing drugs for treating diseases is one of the main motivations for understanding how proteins are able to recognize their substrates. Recent growth in computational power has encouraged the use of numerical tools like atomic detailed molecular dynamics for investigating proteins. Until recently, atomic detail molecular dynamics did not allow for the transfer of pr....

By Andrew Alva Petersen-Physics-University of Pittsburgh-doctoral-2006-09-29
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Obesity has significant medical and psychosocial morbidity and is increasingly prevalent among children. Available evidence suggests that children report binge eating and maladaptive eating behaviors and attitudes, which may contribute to overweight. Further, maternal eating attitudes and behaviors may influence childrens eating and weight, yet little is known about the....

By Rebecca Ringham-Psychology-University of Pittsburgh-doctoral-2006-09-29
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The 2000 presidential election was a disaster for the legitimacy of the electoral process in America, leaving lasting impressions on citizens attitudes and behaviors regarding campaigns and elections. This dissertation has two main goals. The first is to discover the determinants of attitudes about election fairness in the United States. In broad terms, this is an explo....

By Stephanie C McLean-Political Science-University of Pittsburgh-doctoral-2006-09-29
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Japanese high school girls assert enormous creativity in actively and strategically pursuing educational and personal goals. Girls disregard their teachers advice about academics because they rightly perceive that their schools in-class academics have little or no influence on their chances for success on university and junior college entrance exams. Girls argue that t....

By Margaret Elizabeth Murphy-Anthropology-University of Pittsburgh-doctoral-2006-09-29
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The overarching goal of the present study was to test the validity of a model that proposes why some children are likely to not develop co-occurring problem behavior. Specifically, it was hypothesized that high and persistent levels of specific subtypes of internalizing (i.e., social anxiety, inhibition, and withdrawal) or externalizing symptomatology (impulsivity/hyper....

By Alyssa Ann Oland-Psychology-University of Pittsburgh-doctoral-2006-09-29
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Abstract: We explore the conformal geometric structures of a pair of second-order partial-differential equations. In particular, we investigate the conditions under which this geometry is conformal to the vacuum Einstein equations of general relativity. Furthermore, we introduce a new version of the conformal Einstein equations, which are used in the analysis of the con....

By Kiplin Perkins-Physics-University of Pittsburgh-doctoral-2006-09-29
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Standard Poisson-Nernst-Planck (PNP) theory is modified by adding contributions due the Dielectric Self Energy and dynamic relaxation of a protein channel in response to ion permeation. This approach is utilized to predict ionic currents through the Gramicidin A (GA) channel, in which the applicability of conventional continuum theories is questionable. The Potential of....

By Artem B. Mamonov-Chemistry-University of Pittsburgh-doctoral-2006-09-29
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Fluid motion and its richness of detail are described by the Navier-Stokes equations. Most of the numerical analysis existent to date is applicable for strong solutions (typically small body force and initial data). We prove that statistics of weak solutions are optimally computable in the simple but important case of small body force and large initial data. These estim....

By Carolina Cardoso Manica-Mathematics-University of Pittsburgh-doctoral-2006-09-29
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In this dissertation, I study an aspect unexplored in both the field of history and that of literary studies: the relationship between two groups that offered resistance to the authoritarian governments of the seventies, the activists of the revolutionary left, convinced of the necessity of an armed fight, and the homosexuals, committed to the cause of sexual liberation....

By Luciano Hernan Martinez-Hispanic Languages and Literatures-University of Pittsburgh-doctoral-2006-09-29
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Combination of the femtosecond laser time-resolved two-photon photoemission (TR-2PP) and the ultra high vacuum (UHV) surface science preparation techniques provides the possibility to study the electronic structures and the interfacial electron transfer dynamics at the atomically ordered adsorbate overlayers on single-crystalline surfaces, such as TiO2. The nearly perfe....

By Bin Li-Physics-University of Pittsburgh-doctoral-2006-09-29
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The principal concern of this dissertation is whether or not a conceptual analysis of our ordinary concept of causation can be provided. In chapters two and three I show that two of the most promising univocal accounts (the counterfactual theories of Hitchcock and Yablo) are subject to numerous counterexamples. In chapter four, I show that Halls pluralistic theory of ca....

By Francis Longworth-History and Philosophy of Science-University of Pittsburgh-doctoral-2006-09-29
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In the mouse HT22 hippocampal cell line and immature primary cortical neurons, excessive glutamate treatment results in intracellular cysteine depletion, subsequent glutathione loss and the steady accumulation of reactive oxygen species (ROS). This form of oxidative stress ultimately leads to cell death. Previous data from our laboratory had shown that delayed and persi....

By Yue Luo-Neuroscience-University of Pittsburgh-doctoral-2006-09-29
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