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NCSU 檢索結果共 5111 筆,本頁資料從第 73 筆到第 84 筆

BIVENS, TABITHA LYNN. The influence of sense of community, social norms, linkages and knowledge of opportunities on the civic engagement behaviors of college students. (Under the direction of Roger E. Mitchell.) Civic engagement has recently received increased attention because of its importance for keeping Americas democratic society thriving. However, little is known ....

By Tabitha Lynn Bivens-Psychology-NCSU-masters-2006-11-28
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Kafkas well-known obsessions with both language and death need to be understood in light of their common factorthe psychoanalytic concept of the repetition compulsion. Since these obsessions act as motivating forces compelling Kafkas writing, it is crucial to understand the constitutive nature of the repetition compulsion in Kafkas texts by examining its presence in two....

By Robert Russell Jr Barbeau-English-NCSU-masters-2006-11-28
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The term RNA world was first coined in 1986 by W. Gilbert. It was largely based on the observation that RNA, not protein, was responsible for the most critical roles in Bacteria, Archaea and Eukaryotes. Although the RNA world means different things to different researchers Gerald Joyce and Leslie Orgel were able to surmise three common characteristic of all RNA World hy....

By Joseph Ellis-Microbiology-NCSU-doctoral-2006-11-28
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This work describes the design, construction and implementation of a single-channel, electroencephalogram-based (EEG) brain-computer interface (BCI) for the prediction of a single-degree- of-freedom kinematic variable. The system employs a custom-built EEG amplifier to increase noise rejection and decrease the overall cost of the BCI. The EEG amplifier output is read in....

By David Brooks Jr Adcock-Biomedical Engineering-NCSU-masters-2006-11-22
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The objective of this study was to assess the effectiveness of a Nycodenz gradient enrichment method to enrich a dissociated single cell suspension of porcine testicular cells for spermatogonia, and to observe the separated fractions from the gradient over a 14-day culture period for cell viability and number of spermatogonia in culture. Two germ cell specific genes, VA....

By Stephanie Renee Miller-Animal Science-NCSU-masters-2006-11-22
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Movement is nearly universal in the animal kingdom. Movements of animals influence not only themselves but also plant communities through processes such as seed dispersal, pollination, and herbivory. Understanding movement ecology is important for conserving biodiversity and predicting the spread of diseases and invasive species. Three factors influence nearly all movem....

By Jorie Marie Favreau-Zoology-NCSU-doctoral-2006-11-22
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Fundamental and applied aspects of the interactions between carbon dioxide (CO2) and different polymer systems were investigated to demonstrate the effect and performance of CO2 during polymer processing. From a fundamental perspective, the sorption of CO2 into a non-soluble polymer and its dependence on the different system variables we....

By Yazan Ahed Hussain-Chemical Engineering-NCSU-doctoral-2006-11-22
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It is assumed, but not proven, that wetland hydrology can be evaluated with single-season measurements of water table data, if antecedent rainfall is within a normal or drier than normal range. Four methods of rainfall analysis were compared to long-term records of water table levels to determine which method could be used to identify sites with wetland hydrology. Water....

By Jaclyn Patricia Sumner-Soil Science-NCSU-masters-2006-11-15
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Atmospheric composition was unique during the Late Jurassic and Early Cretaceous Periods (~180-90 mya) due to concurrent elevations of CO2 and O2. Experimental methodology, an under-utilized technique in paleoecology, is used to address the physiological responses of Ginkgo biloba seedlings to these conditions. Experimental results have impl....

By Sara Maurine Decherd-Marine, Earth and Atmospheric Sciences-NCSU-doctoral-2006-11-15
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REESE, JILL PAULA. Examining the Significance of Advective Acceleration to Single-Phase Flow Through Heterogeneous Porous Media. (Under the direction of Dr. C. T. Kelley.) Practically every groundwater flow simulator in use today implements Darcy's law to model saturated flow [1, 4, 64, 65]. Darcy's law is a linear relation derived experimentally in the mid 1800's by He....

By Jill Paula Reese-Computational Mathematics-NCSU-doctoral-2006-11-15
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Miniature resonators such as microelectromechanical systems (MEMS) cantilevers have found multiple uses including development of mass resonant sensing. In this thesis, by the microcavity interferometer technique, we investigate the properties of bulk micromachined silicon nitride membranes that are wafer bonded to a substrate to form a Fabry-Perot cavity. Photothermal ....

By Wilson Andrew Shelton-Electrical Engineering-NCSU-masters-2006-11-09
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This work investigated conazole pesticide effects on rat gonadal steroidogenesis and related the observed changes in testosterone production to adverse effects on pubertal and fetal reproductive development. In the initial experiments, prochloraz (PCZ) exposure during male rat pubertal development was investigated to test the hypotheses that PCZ would inhibit testostero....

By Chad Robert Blystone-Toxicology-NCSU-doctoral-2006-11-09
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