UNT Theses and Dissertations - 349 Matching Results

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Neutron Transmutation and Hydrogenation Study of Hg₁₋xCdxTe

Description: Anomalous Hall behavior of HgCdTe refers to a "double cross-over" feature of the Hall coefficient in p-type material, or a peak in the Hall mobility or Hall coefficient in n-type material. A magnetoconductivity tensor approach was utilized to identify presence of two electrons contributing to the conduction as well as transport properties of each electron in the material. The two electron model for the mobility shows that the anomalous Hall behavior results from the competition of two electron… more
Date: December 2007
Creator: Zhao, Wei
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Investigation of the feasibility of non-invasive carbon dioxide detection using spectroscopy in the visible spectrum.

Description: Pulse oximeters are used in operating rooms and recovery rooms as a monitoring device for oxygen in the respiratory system of the patient. The advantage of pulse oximeters over other methods of oxygen monitoring is that they are easy to use and they are non-invasive, which means it is not necessary break the skin to extract blood for information to be obtained. The standard for the measurement of partial pressure of CO2 and O2 is an arterial blood gas analysis (ABG). However routine monitoring … more
Date: December 2007
Creator: Marks, Damian
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Toward a systems analysis of treatment integrity.

Description: This case study is a performance improvement project focusing on the organizational system and management practices in a center for children with autism. Staff interviews and a process improvement map were used to assess the organization and assist in identifying potential solutions. The analysis led to treatment integrity as the key outcome measure. The center's administrative team decided to implement treatment delivery process changes to impact treatment integrity measures. This study measur… more
Date: December 2007
Creator: Jamai, Nadia
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Short Stories

Description: This collection of seven representative original short stories will include four short stories relating to a fictional location in Dallas, the Starry Skies gay country-and-western dance hall. Three short stories set in fabulous, sometimes absurd settings, will follow. A preface dealing with the nature of fictional place and non-fictional place in fiction will precede the collection of short stories.
Date: December 2007
Creator: Gay, Wayne Lee
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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The Rise of a Two-Party State: A Case Study of Houston and Harris County, Texas, 1952-1962

Description: This thesis discusses the rise of the Republican party in Texas and specifically Harris County. The time period is the decade between the Presidential election of Dwight D. Eisenhower and the campaign of Jack Cox for Governor. Changes in the structure and leadership of the Republican party at the state level and specific precincts are examined in detail in chapter one. Leaders in Houston during this time period, such as Jesse Jones, Roy Cullen, and Oveta Culp Hobby are discussed in chapter two.… more
Date: December 2007
Creator: Dunbar, Crystal Rose
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Beyond Rocking the Vote: An Analysis of Rhetoric Designed to Motivate Young Voters

Description: Attempts to solve the continued problem of low youth voter turnout in the U.S. have included get out the vote drives, voter registration campaigns, and public service announcements targeting 18- to 25-year-old voters. Pay Attention and Vote added to this effort to motivate young voters in its 2006 campaign. This thesis analyzes the rhetorical strategies employed by the Pay Attention and Vote campaign advertisements, measures their effectiveness, and adds to the limited body of knowledge describ… more
Date: August 2007
Creator: Brewer, Angela
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Trapping of hydrogen in Hf-based high κ dielectric thin films for advanced CMOS applications.

Description: In recent years, advanced high κ gate dielectrics are under serious consideration to replace SiO2 and SiON in semiconductor industry. Hafnium-based dielectrics such as hafnium oxides, oxynitrides and Hf-based silicates/nitrided silicates are emerging as some of the most promising alternatives to SiO2/SiON gate dielectrics in complementary metal oxide semiconductor (CMOS) devices. Extensive efforts have been taken to understand the effects of hydrogen impurities in semiconductors and its behavi… more
Date: December 2007
Creator: Ukirde, Vaishali
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Crude Oil and Crude Oil Derivatives Transactions by Oil and Gas Producers.

Description: This study attempts to resolve two important issues. First, it investigates the diversification benefit of crude oil for equities. Second, it examines whether or not crude oil derivatives transactions by oil and gas producers can change shareholders' wealth. With these two major goals in mind, I study the risk and return profile of crude oil, the value effect of crude oil derivatives transactions, and the systematic risk exposure effect of crude oil derivatives transactions. In contrast with pr… more
Date: December 2007
Creator: Xu, He
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Determinants of International Terrorist Group Formation, 1968-1999

Description: Terrorism has become a focus of much political thought over the past few years, and with good reason, yet most quantitative studies of terrorism investigate the likelihood of a terrorist incident while ignoring the precursors to terrorist group formation. I examine cases of new terrorist group formations between the years 1968 and 1999 as a function of domestic demographic, geographic, governmental and societal factors. This is done by Poisson regression analysis, which determines the significa… more
Date: December 2007
Creator: Worrell, Blake
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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A Quantitative Modeling Approach to Examining High School, Pre-Admission, Program, Certification and Career Choice Variables in Undergraduate Teacher Preparation Programs

Description: The purpose of this study was to examine if there is an association between effective supervision and communication competence in divisions of student affairs at Christian higher education institutions. The investigation examined chief student affairs officers (CSAOs) and their direct reports at 45 institutions across the United States using the Synergistic Supervision Scale and the Communication Competence Questionnaire. A positive significant association was found between the direct report's … more
Date: December 2007
Creator: Williams, Cynthia Savage
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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A Comparison of Discounting Parameters Obtained Through Two Different Adjusting Procedures: Bisection and Up-Down.

Description: The study compared delay discounting in adult humans using two different methods of adjustments. Both methods used hypothetical choices of monetary outcomes. One involved adjustments using a fixed sequence of ascending or descending amounts, the other used a bisection algorithm in which the changes in amounts varied as a function of the subjects' choices. Two magnitudes of delayed outcomes were used: $1,000 and $10,000. A within subject design was used to compare indifference curves and discoun… more
Date: December 2007
Creator: Woelz, Thomas Anatol da Rocha
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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An investigation of the effective supervision and communication competence of chief student affairs officers in Christian institutions of higher education.

Description: The purpose of this study was to examine if there is an association between effective supervision and communication competence in divisions of student affairs at Christian higher education institutions. The investigation examined chief student affairs officers (CSAOs) and their direct reports at 45 institutions across the United States using the Synergistic Supervision Scale and the Communication Competence Questionnaire. A positive significant association was found between the direct report's … more
Date: December 2007
Creator: Wilcoxson, Douglas A.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Identifying factors that predict student success in a community college online distance learning course.

Description: The study's purpose was to identify demographics, educational background, finances, formal and informal education and experiences, reading habits, external environmental factors, psychological factors, and computer efficacy factors that predict a student's ability to successful complete an online (Web-based) distance learning community college course. Major student retention theories and student attrition and persistence research guided the study. Distance learners (N = 926) completed four surv… more
Date: December 2007
Creator: Welsh, Johnelle Bryson
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Supercritical CO2 foamed biodegradable polymer blends of polycaprolactone and Mater-Bi.

Description: Supercritical CO2 foam processing of biopolymers represents a green processing route to environmentally friendly media and packaging foams. Mater-Bi, a multiconstituent biopolymer of polyester, starch and vegetable oils has shown much promise for biodegradation. The polymer, however, is not foamable with CO2 so blended with another polymer which is. Polycaprolactone is a biopolymer with potential of 4000% change in volume with CO2. Thus we investigate blends of Mater-Bi (MB) and polycaprolacton… more
Date: December 2007
Creator: Ogunsona, Emmanuel Olusegun
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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The Human Body is Not Designed for Ambivalence: Odes

Description: The critical analysis section of this dissertation seeks to define the ode using examples in translation from Greek and Latin odes and examples in English written from the 1500s to the 2000s. Although most definitions of the ode contend that this subgenre of the lyric is an occasional poem of praise that includes a meditative or mythological element, the ode is far more complex. An ode is an occasional poem, but it works to privilege rather than strictly praise its subject, allowing for the sp… more
Date: December 2007
Creator: Walker, Tammy
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Sanctioned and Controlled Message Propagation in a Restrictive Information Environment: The Small World of Clandestine Radio Broadcasting

Description: This dissertation seeks to identify the elements that inform the model for competing message propagation systems in a restrictive environment. It pays attention to message propagation by sanctioned and clandestine radio stations in pre- and post-independent Zimbabwe. This dissertation uses two models of message propagation in a limiting information environment: Sturges' information model of national liberation struggle and Chatman's small world information model. All the message propagation el… more
Date: December 2007
Creator: Wachanga, David Ndirangu
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Partner: UNT Libraries
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Space Race: African American Newspapers Respond to Sputnik and Apollo 11

Description: Using African American newspapers, this study examines the consensual opinion of articles and editorials regarding two events associated with the space race. One event is the Soviet launch of Sputnik on October 4, 1957. The second is the Apollo 11 moon landing on July 20, 1969. Space Race investigates how two scientific accomplishments achieved during the Cold War and the civil rights movement stimulated debate within the newspapers, and that ultimately centered around two questions: why the So… more
Date: December 2007
Creator: Thompson, Mark A.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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First-generation College Students: Their Use of Academic Support Programs and the Perceived Benefit

Description: The purpose of this study was to determine the extent to which academically successful first-generation college students, compared to academically successful non-first-generation college students, used academic support programs provided by UNT and to measure their perception of the benefits of these programs. Differences were examined using information gathered from a Graduate Student Survey administered to students graduating in fall 2006 from the University of North Texas. Analysis of the dat… more
Date: December 2007
Creator: Thompson, Jessica Loren
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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The Effectiveness of a Learning Strategies Course on College Student-Athletes' and Non-Athletes' Adjustment, Academic Performance, and Retention after the First Two Years of College

Description: This study replicated and extended previous research I had performed that suggested that a student success course is an effective intervention to assist student-athletes in the adjustment to college. Participants in the current study included 4 groups of students, including (1) non-athletes and (2) student-athletes who were mandated and enrolled in the student success course, and (3) non-athletes and (4) student-athletes who were not mandated and did not enroll in the student success course. Ov… more
Date: December 2007
Creator: Tebbe, Carmen M.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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AGenesis: A Novel

Description: AGenesis is a novel of "postmortal fiction" set entirely in an afterlife. Nessie, a recently dead woman, accidentally kills an already-dead man, and in the confusion that follows, sets out to discover how he could have died and what after-afterlife he might have gone to. During her travels, she is raped and then help captive by a city of tormented souls; she descends into madness until rescued by children, and she and her newborn but "undead" daughter set out again, this time to find the end … more
Date: December 2007
Creator: Snoek-Brown, Samuel Jeremiah
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Organic carbon dynamics of the Neches River and its floodplain.

Description: A large river system typically derives the majority of its biomass from production within the floodplain. The Neches River in the Big Thicket National Preserve is a large blackwater river that has an extensive forested floodplain. Organic carbon was analyzed within the floodplain waters and the river (upstream and downstream of the floodplain) to determine the amount of organic carbon from the floodplain that is contributing to the nutrient dynamics in the river. Dissolved organic carbon was… more
Date: December 2007
Creator: Stamatis, Allison Davis
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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A Constructional Canine Aggression Treatment: Using a Negative Reinforcement Shaping Procedure With Dogs in Home and Community Settings.

Description: Aggression in dogs is a significant public health concern with 7.2 mortality cases per 100 million inhabitants and approximately 4.7 million dog bites annually. Canine aggression is typically viewed as a genetic trait and treated as pathology through the use of medical or respondent behavioral procedures. In this study the effects of the differential negative reinforcement of safe, alternative behaviors to aggression using distancing as the reinforcer were evaluated. The results demonstrated th… more
Date: December 2007
Creator: Snider, Kellie Sisson
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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A Computational Investigation of the Photophysical, Electronic and Bonding Properties of Exciplex-Forming Van der Waals Systems

Description: Calculations were performed on transition-metal complexes to (1) extrapolate the structure and bonding of the ground and phosphorescent states (2) determine the luminescence energies and (3) assist in difficult assignment of luminescent transitions. In the [Pt(SCN)4]2- complex, calculations determined that the major excited-state distortion is derived from a b2g bending mode rather than from the a1g symmetric stretching mode previously reported in the literature. Tuning of excimer formation … more
Date: December 2007
Creator: Sinha, Pankaj
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Partner: UNT Libraries
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Music for Saxophone and Harp: An Investigation of the Development of the Genre with an Annotated Bibliography

Description: In 1937, Gustav Bumcke (1876-1963) composed the Scherzo, op. 67 for alto saxophone and double-action pedal harp. Since then, over 50 duos were written for various members of the saxophone family and the pedal harp, yet most of this repertoire is rarely performed and many artists are not yet aware of it. This document investigates works that are (1) composed for two musicians: a harpist and a saxophonist; (2) intended for the double-action pedal harp; and (3) originally composed for this instru… more
Date: December 2007
Creator: Shner, Idit
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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