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NCSU 檢索結果共 5111 筆,本頁資料從第 97 筆到第 108 筆

This dissertation examines the problem of quantifying amino acid conservation in proteins molecular evolution. Ideally, this conservation is quantified by inferring the rate of evolution at each amino acid site of a multiple-alignment. However, current rate-inference methods have three problematic assumptions. The methods assume that (a) the rates of all sites are indep....

By Andrew Dellano Fernandes-Biomathematics-NCSU-doctoral-2006-11-02
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A six year storm climatology in the Indianapolis, Indiana region is investigated using base reflectivity radar data. Severe storm reports provided by the Storm Prediction Center (SPC) are used to select relevant thunderstorm cases to study. Storm composition change was noted in urban and rural environments and further statistical analysis is performed to view the overal....

By Patrick Chase Pyle-Marine, Earth and Atmospheric Sciences-NCSU-masters-2006-11-01
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In order to prevent burnout among nurses, key causes of burnout must be identified and targeted for direct intervention. The literature discusses burnout among nurses, focusing on burnout due to task-related variables and not patient-related (caring) variables. Two major problems exist with research on burnout and caring in registered nurses (RNs). The first is the lac....

By Annette Ivey Peery-Adult and Community College Education-NCSU-doctoral-2006-10-23
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McCalley, Christian Talbot. Experimental Investigations of Liquid Fueled Pulsejet Engines. (Under the direction of Dr. William L. Roberts) Various sizes of pulsejets are used to study the effects of heavy liquid fuels like kerosene and military grade JP-8. A hobby scale pulsejet, commercially available from Bailey Machine Services (BMS), is used with gasoline to verify ....

By Christian Talbot McCalley-Mechanical Engineering-NCSU-masters-2006-10-17
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Emissions from agricultural activities, both crop and animal, are known to contain gaseous ammonia (NH3) which through chemical reaction in rainwater changes into ammonium ion (NH4+). Using wet deposition data of ammonium from several National Atmospheric Deposition Program/National Trends Network (NADP/NTN) and Clean Air Status Trends Network (CASTNet) sites, as well a....

By Stephen Brian Konarik-Marine, Earth and Atmospheric Sciences-NCSU-masters-2006-10-06
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The purpose of this dissertation is to identify representations of agriculture in America and to develop models that predict the different representations. It is concluded that social representation theoryas it has been formalized hereis useful for explaining how Americans think about agriculture, particularly alternative representations of structure and technology. Wh....

By Gregory Malone Fulkerson-Sociology-NCSU-doctoral-2006-10-05
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BELL, PAUL DAVID. Can Factors Related to Self-Regulated Learning and Epistemological Beliefs Predict Learning Achievement in Undergraduate Asynchronous Web-Based Courses? (Under the direction of Paul F. Bitting and Duane Akroyd.) The purpose of this study was to examine the effects of subfactors of self-regulated learning (SRL) and epistemological beliefs (EB) on indivi....

By Paul David Bell-Educational Research and Policy Analysis-NCSU-doctoral-2006-10-04
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Characterizing the communication behavior of large-scale applications is a difficult and costly task due to code and system complexity as well as the time to execute such codes. An alternative to running actual codes is to gather their communication traces and then replay them, which facilitates application tuning and future procurements. While past approaches lacked lo....

By Michael James Noeth-Computer Science-NCSU-masters-2006-10-02
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Although there has been a concerted effort on the part of colleges and universities to increase womens representation as faculty in higher education, equal representation in all disciplines has not been realized. The purpose of this research is to increase our understanding of the graduate student experience of current women faculty, specifically, their experience as it....

By Karen Jean Haley-Higher Education Administration-NCSU-doctoral-2006-10-02
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The ethical behavior of public officials is critical to the performance of public agencies. Yet, it is rarely the subject of quantitative research. This study contributes to our understanding of the norms followed by police officers regarding misconduct that are shaped among street-level bureaucrats who, regularly and without warning, confront important value choices. A....

By Julie Burbach Raines-Public Administration-NCSU-doctoral-2006-09-21
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The focus of this research was to determine how three different factors affect the kinetics of the reaction between Dehaloperoxidase Hemoglobin (DHP-Hb), a halogenated phenol substrate, and a peroxide co-substrate. The factors examined were the order of addition of the substrate and co-substrate, the pH of the solutions, and the difference between using hydrogen peroxid....

By Lauren Brenna Galvagni Gilvey-Chemistry-NCSU-masters-2006-09-19
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Efforts are underway to restore the American chestnut, Castanea dentata (Marsh.) Borkh, to its original range within the United States. The American Chestnut Foundation has traditionally focused on introducing blight resistance of the Chinese chestnut, C. mollissima Blume, into their breeding stock. Now, however, they are encountering problems with a root rot caused by ....

By Mollie Ellen Bowles-Forestry-NCSU-masters-2006-09-13
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