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PITTETD 檢索結果共 4141 筆,本頁資料從第 193 筆到第 204 筆

THE NEW ENGLAND COD FISHING INDUSTRY AND MARITIME DIMENSIONS OF THE AMERICAN REVOLUTION Christopher Paul Magra, PhD University of Pittsburgh, 2006 The American Revolution cannot be fully understood without coming to terms with why workers and merchants within the New England cod fishing industry resisted British authority and how their labor and capital contributed to t....

By Christopher Paul Magra-History-University of Pittsburgh-doctoral-2006-09-29
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Growth factor-induced migration is a rate-limiting step in tumor invasiveness. The molecules that regulate this cellular behavior would represent novel targets for limiting tumor cell progression. Epidermal growth factor (EGF) receptor (EGFR)-mediated motility, present in both autocrine and paracrine modes in prostate carcinomas, requires de novo transcription to persis....

By Weixin Zhou-Cellular and Molecular Pathology-University of Pittsburgh-doctoral-2006-09-29
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Literature suggests that relatively simple stimuli such as emotional facial expressions elicit neural activation in subcortical-limbic regions whereas contextually richer emotional pictures generate activation in a broader network of prefrontal as well as subcortical-limbic regions. The extent to which contextual features modulate subjective and neural responses associa....

By Kyung Hwa Lee-Psychology-University of Pittsburgh-masters-2006-09-28
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We present a new model for characterizing the interactions of excess electrons with (H2O)n- clusters. This model combines a modified Thole-type water model with distributed point polarizable, denoted DPP, with quantum Drude oscillators for treating polarization and dispersion interactions between the excess electron and the water molecules. It is demonstrated by examini....

By Suzanne Denise Gardner-Chemistry-University of Pittsburgh-masters-2006-09-28
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Cyclized hexenylzinc iodides have been reported to give different cis:trans product ratios than the analogous radical cyclized hexenyl iodides and this has been taken as evidence that the organozinc and not radical cyclizations are involved. Unfortunately, temperature dependence was not taken into account when comparing the two sets of ratios. To further investigate the....

By Heather Marie Gibney-Chemistry-University of Pittsburgh-masters-2006-09-28
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Human diseases such as spina bifida are caused by a failure in cell morphogenesis and tissue fusion. Dorsal closure in the Drosophila embryo is a model for these tissue closure processes where proper Jun N-terminal Kinase (JNK) signaling is necessary. JNK activity is required in the leading edge cells of the epithelial layer to modulate the cytoskeleton and cell shape, ....

By Christy M Reedy-Biological Sciences-University of Pittsburgh-masters-2006-09-28
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Recent studies have shown that when dehydrated rats are given access to water or various concentrations of saline solution, they consume the same volume of fluid in an initial drinking bout (Hoffmann et al., 2006). Furthermore, there was a close relation between fluid intake and distension of the stomach and small intestine when dehydrated rats drank water or saline (Ho....

By Carrie Alane Smith-Neuroscience-University of Pittsburgh-masters-2006-09-28
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The purpose of the study was to advance our understanding of resilience by studying multiple protective factors associated with positive adjustment among an ethnically diverse sample of 226 low-income boys followed prospectively from ages 1.5 to 12, using trajectories of neighborhood quality from ages 1.5-10 to define risk status. The results indicated that child IQ, nu....

By Ella Vanderbilt-Adriance-Psychology-University of Pittsburgh-masters-2006-09-28
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Conformational transitions of proteins play a crucial role in many biochemical and biophysical reactions. Understanding the conformational changes of a protein upon adsorption to a substrate is very important in biotechnology, e.g. the development of modern protein chip technology, biocompatibility of implants, and many other ones. This research program used cytochrome ....

By Lei Wang-Chemistry-University of Pittsburgh-masters-2006-09-28
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Selectively etched optical fibers were used as a template for fabrication of ultramicroelectrodes (UME), which are suitable for use as a probe in scanning electrochemical microscopy (SECM). Multistep index optical fibers with high-GeO2-doped core and two cladding layers were chemically etched to a sharp point (10 nm in diameter) in NH4F/HF buffer solutions. The etched f....

By Hui Xiong-Chemistry-University of Pittsburgh-masters-2006-09-28
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Adults often modify their speech, gesture, sign language, and action when interacting with infants relative to adults. Some of these forms of infant-directed communication have been tied to infant preferences and learning, but infant-directed action has yet to be investigated. The purpose of the present study was to test whether infant-directed action impacts infants pr....

By Erin A. Koterba-Psychology-University of Pittsburgh-masters-2006-09-28
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This paper investigates the effect of learning conditions on phrasal verbs in adult ESL learners. It aims to find more effective learning conditions for phrasal verbs taking into account the influence of proficiency and the learners first language. The study, which was designed as an experimental study, includes the following procedures: a pre-test/treatment/post-test. ....

By Yunseong Cheon-Linguistics-University of Pittsburgh-masters-2006-09-28
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