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Comparative Mitochondrial DNA Sequence Diversity in Isolated and Open Populations of Southern Flying Squirrels

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Three populations of Southern flying squirrels were studied in the Ouachita Mountains of Arkansas to assess the impact of population subdivision-due to island formation--on the population genetics of Glaucomys volans. One island, one mainland, and one open population were investigated. A 367 nucleotide hypervariable region of mitochondrial DNA was sequenced in individuals from each population. Individuals and populations were compared to assess relatedness. Higher sequence diversity was detected in the open and island populations. One island individual shared characters with both the island and mainland populations. Results support the hypothesis that the mainland population may have reduced gene flow. Also, the island population may have been originally founded by at least two maternal lineages.
Date: August 1999
Creator: Cook, Melaney Birdsong
Object Type: Thesis or Dissertation
System: The UNT Digital Library

A Multimedia Atlas of Dissection for Comparative Anatomy of the Vertebrates

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Traditional methods of teaching the laboratory course for Comparative Anatomy of the Vertebrates could be improved by applying current computer technology to construct an interactive, multimedial atlas of dissection. Five specimens used in comparative anatomy courses at most institutions were chosen as representative members of the Phylum Chordata: amphioxus, lamprey, dogfish shark, mud puppy, and cat. Specimens were dissected according to the modified method of Wischnitzer, 1993, and each stage was photographed with a Kodak DC120 digital zoom camera. These images were processed on a Power Macintosh 7600 computer with Adobe Photoshop v. 5.0. The atlas was constructed from these images using Macromedia Authorware v. 4.0.3. Each image contains a series of interactive objects that display a highlight and descriptive text as the cursor passes over each object.
Date: August 1999
Creator: Curran, Anthony A.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Harbor: The Act of Autobiography

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This written thesis accompanies a sixteen-minute documentary video, Harbor, in which the filmmaker explores her relationship with her father who has suffered a stroke. Detailed accounts of the pre-production, production and post-production of the video allow the reader to understand the challenging and rewarding process of making an autobiographical documentary. Theoretical issues are also discussed, including the validity, criticisms, artistic nature and ethical concerns of autobiographical filmmaking. The filmmaker stresses the universality of her story, and how, despite the film's very personal nature, it is applicable for anyone who has dealt with the illness and/or disability of a parent.
Date: August 1999
Creator: Doeren, Catherine Wallace
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Mercado de Fort Worth: Issues and Opportunities

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The Mercado de Fort Worth is a commercial area located between downtown Fort Worth and the "stockyards" entertainment district in a Hispanic neighborhood. Many of the buildings are vacant and in need of renovation. To promote area development, the City of Fort Worth has encouraged property owners to create a market area of Mexican-theme restaurants and shops. Property owners have expressed concern about potential returns on renovation investments. This study provides property owners with information regarding several similar projects across the country. The report finds that basic economic and site location principles are the main determinants of project success. The report also reviews local business training and assistance resources. Finally, the report provides information regarding "historic" building designations and associated tax incentives available to property owners
Date: August 1999
Creator: Hernandez, Gustavo
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Stretched Out On Her Grave: The Evolution of a Perversion

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The word "necrophilia" brings a particular definition readily to mind – that of an act of sexual intercourse with a corpse, probably a female corpse at that. But the definition of the word did not always have this connotation; quite literally the word means "love of the dead," or "a morbid attraction to death." An examination of nineteenth-century literature reveals a gradual change in relationships between the living and the dead, culminating in the sexualized representation of corpses at the close of the century. The works examined for necrophilic content are: Mary Wollstonecraft’s Mary, A Fiction, Mary Shelley’s Frankenstein, Emily Brontë’s Wuthering Heights, and Bram Stoker’s Dracula and The Jewel of Seven Stars.
Date: August 2000
Creator: Angel-Cann, Lauryn
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Inquiry-based science for high school students: a forensic unit

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This project constitutes an instructional unit for honors biology that involves the use of science in the field of criminal investigation and forensics. Before beginning the unit, the learners should have mastered basic laboratory skills, including use of the microscope. They should also have an understanding of the basic structure and function of DNA and its role in heredity and protein synthesis. The standard time frame is 24 days with 70-minute periods, but can be easily adjusted to meet classroom needs. Several instructional strategies enhance student learning and make science fun. The unit is inquiry-driven and activity-based. Students are surprised by the crime, gather and analyze evidence, and work towards proposing an explanation. This real world problem involves the use of cooperative learning and a variety of assessment techniques.
Date: August 2000
Creator: Apple, Kendra Kea
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Characterizing the Municipal Solid Waste Stream in Denton, Texas

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Forty-two commercially collected dumpsters from Denton’s Municipal Solid Waste Stream were emptied, sorted and weighed to characterize the material types and make preliminary recycling policy recommendations. The general composition of Denton’s solid waste stream was not significantly different from the composition of the nation’s solid waste stream. Fifty-eight percent of the observed waste stream was recyclable. Paper made up the largest portion of recyclable materials and the "grocery" source category had more paper than any of the other five categories. Based on these findings, an incrementally aggressive approach is recommended to reduce certain types of wastes observed in the waste stream. This would include a Pay-As-You-Throw Program followed by an Intermediate Processing Center that can be converted to a Materials Recovery Facility.
Date: August 2000
Creator: Brady, Patricia D.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Loading the Problem Loader: The Effects of Target Training and Shaping on Trailer Loading Behavior of Horses in a Natural Setting

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The purpose of this study was to develop an effective method for trailer loading horses based on the principles of positive reinforcement. Target training and shaping were used to teach trailer loading behavior in a natural setting. Five AQHA mares were selected for this program. All five had been loaded before through the use of punishment. A two-horse trailer was used. Approximations to loading and inappropriate behaviors were the dependent variables. When intervention started the target was moved to various locations inside the trailer. Subjects started training on the left side of the trailer. After a subject was loading in the left side they were moved to the right side, then to loading half on the right and half on the left, then they were loaded by a different trainer, and into a different trailer. For one subject a limited hold was utilized, as well as a companion horse.
Date: August 2000
Creator: Ferguson, Dawnery
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Multi-Agent Architecture for Internet Information Extraction and Visualization

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The World Wide Web is one of the largest sources of information; more and more applications are being developed daily to make use of this information. This thesis presents a multi-agent architecture that deals with some of the issues related to Internet data extraction. The primary issue addresses the reliable, efficient and quick extraction of data through the use of HTTP performance monitoring agents. A second issue focuses on how to make use of available data to take decisions and alert the user when there is change in data; this is done with the help of user agents that are equipped with a Defeasible reasoning interpreter. An additional issue is the visualization of extracted data; this is done with the aid of VRML visualization agents. The cited issues are discussed using stock portfolio management as an example application.
Date: August 2000
Creator: Gollapally, Devender R.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

The Application of a Health Service Utilization Model to a Low Income, Ethnically Diverse Sample of Women

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A model for health care utilization was applied to a sample of low income women. Demographic Predisposing, Psychosocial Predisposing, Illness Level, and Enabling indicators were examined separately for African American (n = 266), Anglo American (n = 200), and Mexican American (n = 210) women. Structural Equation Modeling revealed that for African American and Anglo American women, Illness Level, the only significant path to Utilization, had a mediating effect on Psychosocial Predisposing indicators. The model for Mexican Americans was the most complex with Enabling indicators affecting Illness Level and Utilization. Psychosocial Predisposing indicators were mediated by Illness Level and Enabling indicators which both directly affected Utilization. Implications of the results for future research are addressed.
Date: August 2000
Creator: Keenan, Lisa A.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Adherence and Haemagglutination of Moraxella Catarrhalis.

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M. catarrhalis is a gram-negative diplococci frequently associated with infections of the upper respiratory tract. During the past decade, some preliminary studies have attempted to elucidate mechanisms of adherence and haemagglutination of M. catarrhalis. These studies have reported, in many cases, inconsistent results. There are two purposes of this research. First, identify mechanisms that may potentially be associated with the adherence and haemagglutination of M. catarrhalis. Second, suggest research directions that may be fruitful in clarifying these mechanisms.
Date: August 2000
Creator: Kosterman, Edward, III
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Keyboard Innovation: Harry Partch's Contributions

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"Harry Partch's Keyboard Innovation" is a computer-assisted demonstration that introduces the tuning system used primarily by the twentieth-century American composer, Harry Partch. The multimedia product was developed in Director 6.0, and it includes sound and video clips from CDs and videocassettes of Partch's works produced by Phillip Blackburn and distributed by the American Composers Forum. The content of the demonstration involves a 43-tone microtonal tuning system and its application in the music literature. This demonstration will discuss the chronological order in which these prototypes were developed and also includes samples of the tuning of notes in Partch's scale that the novice can experiment with interactively. These tones were synthesized using the Csound scores shown in Appendix B. Materials for this demonstration are based on Harry Partch's Genesis of a Music.
Date: August 2000
Creator: Koh,Wee Lay
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Assisted Living: The Need for Creation of Affordable Options

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Assisted living, the fastest growing segment of the senior housing industry, allows individuals to remain as independent as they prefer and still receive necessary services. However, assisted living residences exist primarily to serve those seniors who can pay for the services from their own savings/income. We are facing a critical need for housing options for both the current senior generation and the soon-to-be-retired baby boomers. How will access to assisted living be opened to all types of payors? How will states fund the growth of assisted living? The purpose of this paper is to discuss opportunities for expansion that will make assisted living an affordable option for the low- and moderate-income elderly.
Date: August 2000
Creator: Kretzinger, Robert W.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Consumer Attitude Towards Branded Quick-Service Foods on Domestic Coach Class In-Flight Menus

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This study examined consumer attitude towards adding branded quick-service items on domestic airline in-flight menus with the aim of assessing the variables of perceived customer value and customer satisfaction. A random sample of one hundred sixteen frequent flyers residing in the United States participated in the study. An examination of consumer attitude towards branded quick-service menu items if introduced on domestic in-flight menus was performed. Multiple regression analysis was used to determine which of the four relationships was the most significant. The results showed that frequent flyer satisfaction with branded quick-service food items had the most significant relationship with perceived satisfaction of adding branded quick-service foods to coach class in-flight meal service.
Date: August 2000
Creator: Mills, Juline
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Women in Public Relations: Our Past, Present, and Future

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Since abolition, women have used the media to bring attention to causes and injustices in society. Issues faced by these women are some of the same issues faced by women in public relations today and possibly the future. This paper is the history of the women of pre-professional public relations in relation to their use of the media to bring about change and communicate with an audience. It also discusses the evolution of the public relations profession as it pertains to the parallel issues that the women of the first wave faced in relation to the second wave, or professional era. The paper will then synthesize these two eras in public relations and discuss the future of women in the profession as seen by researchers and women practicing at this time.
Date: August 2000
Creator: Moore, Jaimee
Object Type: Thesis or Dissertation
System: The UNT Digital Library

General Biology Lecture and Laboratory Curriculum Outline in a Two or Four-Year College

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In July of 1999, I wrote to 24 Texas junior and community colleges (and one four-year institution) describing my thesis agenda of a general biology lecture and laboratory syllabus for introductory biology students. I requested the titles and authors of the general biology textbooks and laboratory manuals they were currently using, the publishers of these texts, and the edition of said texts. I then contacted publishers of the various textbooks who, in turn, directed me to the Dallas-area representatives for further inquiries. I assimilated the various authors' general biology topics into a two-semester syllabus of lecture and one semester of laboratory. The document is not a text manuscript, but an all-inclusive listing of a general biology syllabus broken down by subject.
Date: August 2000
Creator: Moreland, Amy L.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Victims of Hope: Explaining Jewish Behavior in the Treblinka, Sobibór and Birkenau Extermination Camps

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I analyze the behavior of Jews imprisoned in the Treblinka, Sobibór, and Birkenau extermination camps in order to illustrate a systematic process of deception and psychological conditioning, which the Nazis employed during World War II to preclude Jewish resistance to the Final Solution. In Chapter I, I present resistance historiography as it has developed since the end of the war. In Chapter II, I delineate my own argument on Jewish behavior during the Final Solution, limiting my definition of resistance and the applicability of my thesis to behavior in the extermination camp, or closed, environment. In Chapters III, IV, and V, I present a detailed narrative of the Treblinka, Sobibór, and Birkenau revolts using secondary sources and selected survivor testimony. Finally, in Chapter VI, I isolate select parts of the previous narratives and apply my argument to demonstrate its validity as an explanation for Jewish behavior.
Date: August 2000
Creator: Motl, Kevin C.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Life History and Case Building Behaviors of Phylloicus ornatus (Banks) (Trichoptera: Calamoceratidae) In Two Spring Fed Tributaries in the Central Edwards Plateau Bioregion of Texas

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The life history and case-making behaviors of Phylloicus ornatus from two springfed first order streams in the Edwards Plateau Bioregion of Texas were studied from January 1998 to November 1999. Field larval, pupal and adult samples and laboratory rearings indicated a multivoltine cycle. First instars differ from late instars in number of labral setae and in having a unique spur-like claw on each lateral hump. Larval development was asynchronous with second through fifth instars and pupae present most months. First instars were present April through July, October and November. Case making of first instar and case reconstruction of later instars extracted from their cases was documented by videophotography.
Date: August 2000
Creator: Norwood, James Christopher
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Maintaining behavior in a child with autism using a previously neutral stimulus, a remote control tactile stimulus, as the consequence

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Few studies have investigated methods for establishing neutral stimuli as conditioned reinforcers in human subjects. Conditioned reinforcers, however, can alleviate some of the problems encountered in applied behavior analytic (ABA) therapy for children with autism, such as satiation and suitability of reinforcers for specific environments. A series of reversals evaluated the effects of a conditioning procedure involving pairing a neutral stimulus, the remote control stimulus (RCT), with an identified reinforcer. Phase 1 demonstrated that the RCT was neutral. In Phase 2, alternating pairing and testing conditions were run. During testing the effects of pairing were evaluated by the effectiveness of the RCT in maintaining a response in the absence of a previously available reinforcer (extinction test) and in increasing a new response over a baseline level (learning test). Results from the extinction test suggest that under some pairing conditions the RCT can acquire properties of a reinforcer.
Date: August 2000
Creator: Wheat, Leigh Ann Stiles
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Barriers Limiting Access to Hospice Care for Elderly African Americans in Amarillo, Texas

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This study examines barriers limiting access to hospice care for elderly African Americans. Ethnic background plays a critical role in the development of attitudes, beliefs and expectations related to death and issues surrounding hospice care. The purpose of this study was to identify barriers that may limit access to hospice care for African Americans. A questionnaire was administered to 56 elderly African Americans in three religious settings and an African American senior citizens center. The questionnaire was designed to obtain information concerning African Americans' attitudes toward death and dying; religious beliefs; health beliefs; familiarity with hospice and prospective use of hospice. The results of the study indicate a number of barriers in access to hospice care for African Americans including: hospice knowledge barriers; education/outreach barriers; cultural knowledge barriers related to death/dying values; family/social support barriers; hospice organizational/provider barriers; health care organizational/provider barriers; and reimbursement barriers.
Date: August 2001
Creator: Anthony, Tomagene
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Condom Use Among College Students

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With the spread of the Human Immuno-Deficiency Virus and sexually transmitted diseases, it is extremely important for sexually active individuals to protect themselves properly if they decide to engage in sexual intercourse. Knowledge of HIV and the Acquired Immune Deficiency Syndrome has been associated with safer sexual practices, but knowledge alone does not totally explain risky sexual practices. This study examined how 154 college students' knowledge of HIV/AIDS, relationship status, perceptions of condom use, and perceptions of personal risk affect condom use during sexual intercourse. The impact of trust and love justifications along with the approval of peers were also examined. Perceptions of condom use and perceptions of personal risk were compared by gender and ethnicity; how perception of personal risk is related to condom use and condom use intentions was also examined. Condom use intention was found to be a significant predictor of condom use, and a significant difference of means for condom use intentions was reported between individuals who used condoms during their last experience with sexual intercourse and those who did not use condoms during their last sexual experience
Date: August 2001
Creator: Bradshaw, Joe W.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

A preliminary study of the effects of selective-serotonin re-uptake inhibitors (SSRIs) on central auditory processing

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his study compared auditory behavioral and physiological measures among three subject groups: 1) Normal control subjects, 2) subjects who were on a prescribed SSRI for depression, and 3) subjects who were prescribed an SSRI for depression, but were not medicated at the time of testing. Test measures included: Standard audiological tests (audiometry and tympanometry), electrophysiological procedures for analysis of auditory- evoked brainstem and late responses, and standardized behavioral speech tests (SCAN-A, SSI, and the low predictability sentence list of the R-SPIN). Analysis of results indicated a statistically significant increase of group mean amplitude of the ABR peak V, from 15dBnSL to 55dBnSL, in the non-medicated group compared to controls. Also, the non-medicated group scored significantly less favorably than controls on the most challenging listening condition (-20 MCR) of the SSI, in the left ear. Although other test measures indicated consistent differences between these two groups, they were not, however, significant.
Date: August 2001
Creator: Bishop, Charles E.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

The Effectiveness of Homeschool Collegiate Preparation: Four Alumni's Perceptions

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This qualitative study seeks to assess the effectiveness of homeschool collegiate preparation through the eyes of homeschool alumni. Four alumni who are current college students participated in the study. A triangulation of methods, which included surveys, open-ended questionnaires, and interviews, ensured reliability and validity. Although the students represented a wide range of varied homeschool experiences, the perceptions of all the students were that their environments prepared them for collegiate-level work at levels that are above average.
Date: August 2001
Creator: Bryant,Cynthia T.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

An Analysis of Major American Riots: Issues in Riots and Riot Control

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By conducting sound research to understand the concepts surrounding rioting and efficient riot response tactics, professionals, especially whose main job is to ensure the tranquility in the society, will be better prepared to deal with all kinds of civil movements. The purpose of this study, consequently, is to meet the growing need for educational materials in this area and to provide riot response case studies, which demonstrate the numerous administrative challenges faced by law enforcement decision makers. In this study, seven major riots from throughout the United States are discussed including the Hay Market Riot of 1886, the Watts Riot of 1965, and Los Angeles Riots of 1992. Each riot case is studied in five different and independent stages: the setting and pre-disturbance situation, basic causes of the event, the disturbance situation, the response to the riot, and the aftermath of the incident. The study of all of these stages is intended to help police administrators acquire a general perspective on collective violence, and help them prevent future occurrences in their jurisdictions. In this thesis a special reference is given to the deficiencies of American riot policing and some recommendations were formed accordingly. Therefore, the study concludes with a list …
Date: August 2001
Creator: Cinoglu, Huseyin
Object Type: Thesis or Dissertation
System: The UNT Digital Library