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UNT Theses and Dissertations
280
Texas Digital Newspaper Program
128
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56
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52
Texas Jewish Post
52
Tocker Foundation Grant
52
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48
Journal of Near-Death Studies
27
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27
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22
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18
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15
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582 Matching Results
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Demographic Variables and Their Relation to Self-Concept in Children with and Without Attention-Deficit/Hyperactivity Disorder
The proposed study examined differences in self-concept between ADHD (n = 61) and non-ADHD boys and girls. Participants included 108 children between 6 and 11 years old. Children completed the Self Description Questionnaire-I, and teacher reports of child competence were obtained. Girls reported lower physical ability and mathematics self-concept than boys. The results also indicated that ADHD girls may be more susceptible to low physical ability and mathematics self-concept than control children or ADHD boys. Teachers also rated ADHD girls as having lower scholastic competence than the other three groups. Teachers reported significant differences in level of competence based on ADHD status. The implications of the current study and directions for future research will be presented.
Date:
August 2003
Creator:
Barton, Kimberly A.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
James Earl Rudder: A Lesson in Leadership
Access:
Use of this item is restricted to the UNT Community
This thesis is the about the life of Rudder. The emphasis of this work, however, is that Rudder was successful primarily because of his character and leadership style. Much of the study was drawn from primary sources. Secondary sources were also consulted. This thesis opens with a brief Introduction, which discusses the need for this work. Chapter 1 discusses Rudder's life prior to WW II, emphasizing particular characteristics that benefited his leadership ability. Chapter 2 examines the 2nd Ranger Battalion's transformation under Rudder's leadership and guidance. Chapter 3 chronicles the 2nd Ranger Battalion's assault on the Pointe du Hoc battery, ending in December 1944, when Col. Rudder was reassigned to the 109th Infantry Regiment. Moreover, the controversy surrounding the Ranger's mission is also examined in this chapter. Chapter 4 describes Col. Rudder's leadership with the 109th in the Battle of the Bulge. A chapter accounting Rudder's political career and leadership follows. Chapter 6 examines his term as chancellor and president of the Texas A&M University system, until his death in 1970, and the major institutional changes that he enacted during his tenure, which resulted in A&M becoming the respected research university it is today. This significance and recapitulation of Rudder's …
Date:
December 2003
Creator:
Bean, Christopher B.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Quantum Biomechanical Basis for Near-Death Life Reviews
Article introducing the unifying paradigm of the quantum hologram as a non-local carrier of information, and investigating the interrelated phenomena of non-local communications and the electromagnetic zero-point field.
Date:
Spring 2003
Creator:
Beck, Thomas E. & Colli, Janet E.
Object Type:
Article
System:
The UNT Digital Library
Corridors in Conservation and Philosophy
My thesis focuses on philosophical themes implicit in corridor conservation, using the Big Thicket National Preserve as an example. The way in which corridors, boundaries and communities are ambiguous, as both limits and connections, is dealt with. Corridor-patch matrices assemble ecological and human groups into temporary communities, often with conflicting interests. Such constellations foreground how a foreigner's boundary crossing is a notion important to both conservation and a philosophical study of being, seen as being always in relation with otherness. In this context, the notion of foreignness and Jean-Luc Nancy's idea of being-with is explored. Understanding the complex network of relations in which an entity exists leads to an awareness of its ambiguous nature. To facilitate judgment with such ambiguity, one needs a contextual understanding of a situation.
Date:
August 2003
Creator:
Benton, Christine S.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Job Embeddedness as a Predictor of Voluntary Turnover: Validation of a New Instrument
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Use of this item is restricted to the UNT Community
Voluntary turnover has become a problem for many organizations in today's society. The cost of this turnover reaches beyond organizational impact, but also affects the employees themselves. For this reason, there has been a plethora of research conducted by both academicians and practitioners on the causes and consequences of voluntary turnover. The purpose of this study is to test the validity and generalizability of the job embeddedness model of voluntary turnover to the information technology (IT) industry. The IT field has been plagued with high turnover rates in recent years. In this study, the job embeddedness model (Mitchell et al., 2001) is applied to a population sample consisting of health care information technology employees.
Date:
December 2003
Creator:
Besich, John S.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Analysis of Selected Choral Works by Kirke Mechem: Music-Textual Relationships in Settings of Poetry of Sara Teasdale
Kirke Mechem (b. 1925), American composer, has a musical output which includes a variety of genres, the most prolific being choral music. This document examines selected choral works by Mechem that are set to the poetry of Sara Teasdale (b. 1884, d. 1933). Included are biographical sketches of Mechem and Teasdale. Selected choral works examined include Christmas Carol (1969) SATB and guitar, The Winds of May, five movement choral cycle (1965) SATB, Birds at Dusk, from the choral cycle Winging Wildly (1998) SATB, and Barter (1995) SA, trumpet, piano 4-hands. Analysis of the poetry involved as well as musical attributes and compositional techniques, including meter, form, harmonic structures, wordpainting, rhythmic treatment and melodic characteristics are included in the discussion.
Date:
August 2003
Creator:
Bierschenk, Jerome Michael
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Characterization of Cure Kinetics and Physical Properties of a High Performance, Glass Fiber-Reinforced Epoxy Prepreg and a Novel Fluorine-Modified, Amine-Cured Commercial Epoxy.
Kinetic equation parameters for the curing reaction of a commercial glass fiber reinforced high performance epoxy prepreg composed of the tetrafunctional epoxy tetraglycidyl 4,4-diaminodiphenyl methane (TGDDM), the tetrafunctional amine curing agent 4,4'-diaminodiphenylsulfone (DDS) and an ionic initiator/accelerator, are determined by various thermal analysis techniques and the results compared. The reaction is monitored by heat generated determined by differential scanning calorimetry (DSC) and by high speed DSC when the reaction rate is high. The changes in physical properties indicating increasing conversion are followed by shifts in glass transition temperature determined by DSC, temperature-modulated DSC (TMDSC), step scan DSC and high speed DSC, thermomechanical (TMA) and dynamic mechanical (DMA) analysis and thermally stimulated depolarization (TSD). Changes in viscosity, also indicative of degree of conversion, are monitored by DMA. Thermal stability as a function of degree of cure is monitored by thermogravimetric analysis (TGA). The parameters of the general kinetic equations, including activation energy and rate constant, are explained and used to compare results of various techniques. The utilities of the kinetic descriptions are demonstrated in the construction of a useful time-temperature-transformation (TTT) diagram and a continuous heating transformation (CHT) diagram for rapid determination of processing parameters in the processing of prepregs. Shrinkage …
Date:
December 2003
Creator:
Bilyeu, Bryan
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Developmental Patterns of Metabolism and Hematology in the Late Stage Chicken Embryo (Gallus Domesticus) at Two Incubation Temperatures.
How temperature affects physiological development in the chicken embryo is unknown. Embryos incubated at 38°C or 35°C showed no difference in growth or survival. The time to hatching was longer in 35°C than 38°C embryos (23.7 vs. 20.6 days), but unaffected was the relative timing of appearance of developmental landmarks (internal, external pipping). At stage 43-44, 38°C embryos maintained oxygen consumption around 1 mL/g/h despite acute temperature reduction (suggesting thermoregulatory maturation), unlike 35°C embryos. In 35°C embryos the lower oxygen-carrying capacity and temperature insensitive blood O2 affinity (P50 about 30 mmHg) may restrict O2 delivery to tissues, limiting metabolism during decreased ambient temperature. Reduced incubation temperature retards normal hematological and thermoregulatory development.
Date:
May 2003
Creator:
Black, Juli
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Pink Papers
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Use of this item is restricted to the UNT Community
The Pink Papers is a collection of three short stories and a novel in progress consisting of four chapters. Each piece is a work of original fiction. The preface addresses the female writer and the female voice in fiction. "Broken Clock" and "Pink Paper" are the stories of two girls coping with endometriosis. "Normal Capacity" looks at the loss of a dream through the eyes of a first-year law student. The novel in progress, titled Blanchard, OK, is set in a rural farming town in Oklahoma. The novel tells the stories of 24-year-old Robin, her Aunt Paula, and Paula's boyfriend, Sam.
Date:
August 2003
Creator:
Blagg, Caroline
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of Response Restriction on Non-Socially Maintained Self-Injury
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Use of this item is restricted to the UNT Community
This study examined the effects of response restriction (blocking and protective equipment) on subsequent durations of self-injury with two female participants with developmental disabilities. First, a functional analysis was conducted with each participant to identify potential maintaining variables of the self-injury. Second, access to the response was systematically restricted in a multiple schedule restriction paradigm. A baseline extended alone was conducted without the restriction component in place as a control condition. For one participant the results suggested that response restriction may have increased subsequent durations of responding once the restriction element was removed. For a second participant responding did not appear to be affected by the restriction component.
Date:
May 2003
Creator:
Blevins, Travis
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Nightingale in Poetry and Music
Access:
Use of this item is restricted to the UNT Community
This thesis surveys a variety of songs and arias for high soprano which feature the nightingale; examines the musical elements that symbolize, refer to, or imitate the nightingale; and compares these musical elements with transcriptions of the nightingale's song. The first chapter reviews the symbolic development of the nightingale and its role in poetry and literature. The interior chapters address a selection of musical compositions that feature the nightingale and its song. The final chapter establishes a relationship between the sound of the actual sound of the nightingale and the musical gestures created by composers to imitate the nightingale.
Date:
May 2003
Creator:
Blizzard, Amy
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Investigation into the Effects of Long-term Staff Development on Teacher Perceptions and Reading Achievement on Young Children
The effectiveness of long-term staff development (Reading Academy Project-RAP) on students' reading scores on the Texas Assessment of Academic Skills (TAAS) test was examined to determine if teachers transferred newly learned teaching strategies into practice and changed their beliefs about reading instruction. In a four-year cohort longitudinal study in an East Texas rural community, the effects of long-term staff development on third grade students' TAAS test reading scores, teacher practices, and teacher beliefs were explored. Populations included a teacher group (N = 17), an experimental (N = 419), and a control (N = 419) group of students. Children's groups were matched pairs based on five demographic characteristics and membership or non-membership in one or more of six categories. An application survey and four end-of-the-year surveys provided teacher data regarding classroom practices. One interview question provided information about teacher beliefs. Results indicate students who had a RAP teacher for at least one year scored significantly higher on the TAAS reading test in the third grade than those without a RAP teacher. Examination of students having more than one year with an academy teacher failed to produce statistically significant differences in TAAS test reading scores; however, an upward trend was noted. Statistically …
Date:
May 2003
Creator:
Boatman, Vikki
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Dimensional Assessment of Empowerment in Organizations
This research project was inspired by a survey that was designed to help an organization determine how well it was doing in its efforts to empower associates and achieve a goal of continuous improvement. Initial review of the survey created suspicion that the survey was not built around the appropriate dimensions to accurately measure the level of empowerment in organizations. As such, the survey was psychometrically analyzed to determine the validity of the instrument as a measure of empowerment. Additionally, an extensive review of the literature was performed to determine new dimensions that would most accurately measure empowerment. Eight dimensions (culture, trust, accountability, leadership, ability, commitment, responsibility, and communication) were put forth as the most appropriate to measure empowerment. Subject matter experts with knowledge and experience in the area of organizational empowerment reviewed the new dimensions for accuracy and fit with the original survey items.
Date:
May 2003
Creator:
Bodner, Sarah L.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Use of Geographic Information System and Remote Sensing Technologies to Describe Mosquito Population Dynamics in the Ray Roberts Greenbelt, Denton County, Texas
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Use of this item is restricted to the UNT Community
A population survey was conducted from April through September 2002 on mosquito species occurring on the Ray Roberts Greenbelt, a riparian corridor used for public recreation on the Elm Fork of the Trinity River, in Denton County, Texas. ArcGIS software was used to set up a stratified random sampling design based on habitat parameters. Multivariate analyses of sampling data and climatic variables were used to describe spatial and temporal patterns of mosquito species. A total of 33 species were collected during this study belonging to the following genera: Aedes, Anopheles, Coquillettidia, Culex, Mansonia, Ochlerotatus, Orthopodomyia, Psorophora, Toxorhynchites, and Uranotaenia. Seasonal distributions of the dominant species revealed population fluctuations. Aedes vexans was the primary species collected in April and May, occurring in low numbers throughout the rest of the sampling period. Psorophora columbiae reached its highest population density in June, with a smaller peak occurring in late July. Present from May through the end of September, Culex erraticus was the most abundant species collected with major peaks in mid-June and the end of July. Abundance of Culex salinarius followed the same general trend as that for Cx. erraticus, but with smaller numbers. The specimens were tested for a variety of arboviruses …
Date:
May 2003
Creator:
Bolling, Bethany G.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Dynamic Foundation of Fractal Operators.
The fractal operators discussed in this dissertation are introduced in the form originally proposed in an earlier book of the candidate, which proves to be very convenient for physicists, due to its heuristic and intuitive nature. This dissertation proves that these fractal operators are the most convenient tools to address a number of problems in condensed matter, in accordance with the point of view of many other authors, and with the earlier book of the candidate. The microscopic foundation of the fractal calculus on the basis of either classical or quantum mechanics is still unknown, and the second part of this dissertation aims at this important task. This dissertation proves that the adoption of a master equation approach, and so of probabilistic as well as dynamical argument yields a satisfactory solution of the problem, as shown in a work by the candidate already published. At the same time, this dissertation shows that the foundation of Levy statistics is compatible with ordinary statistical mechanics and thermodynamics. The problem of the connection with the Kolmogorov-Sinai entropy is a delicate problem that, however, can be successfully solved. The derivation from a microscopic Liouville-like approach based on densities, however, is shown to be impossible. …
Date:
May 2003
Creator:
Bologna, Mauro
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Latin Mass for Choir, Orchestra, Soprano and Mezzo-Soprano Soloists
The Latin Mass is a musical composition in five movements, scored for large choir, standard orchestra, and two soloists. The movements are the standard parts of the Roman Catholic Mass Ordinary. The language is set mainly in Latin with two exceptions: the Kyrie movement is set in Greek (which is the standard Roman Catholic setting), and the Credo is simultaneously recited in English and sung in Latin. The work is scored using conventional notation techniques and employs rather conservative technical demands on both the choir and orchestra. No extended techniques are required of any of the performers. It is set in a modal harmonic language.
Date:
May 2003
Creator:
Bonneau, Paul G.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Vieques: Island of Conflict and Dreams
This written thesis is a companion to a 30-minute documentary video of the same title. The documentary is a presentation of the historical conflict between the United States Navy and the people of the island of Vieques, Puerto Rico. For over 60 years the island was used by the United States Navy as a military training facility. The documentary attempts to present an analysis of the struggle between citizens of the island and the Navy. This written component presents a summarized history of Puerto Rico, Vieques and the conflict with the United States Navy. In addition, the preproduction, production and post-production process of the documentary are discussed. A theoretical analysis of the filmmaker's approach and technique are addressed and analyzed as well. The thesis's goal is to provide a clear understanding of the Vieques conflict to United States audiences who do not a familiarity with the topic. The thesis is presented from the perspective of a person who grew up in Puerto Rico.
Date:
December 2003
Creator:
Borges, Cristóbal A.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Study of Translation Equivalence on Integer Lattices
This paper is a contribution to the study of countable Borel equivalence relations on standard Borel spaces. We concentrate here on the study of the nature of translation equivalence. We study these known hyperfinite spaces in order to gain insight into the approach necessary to classify certain variables as either being hyperfinite or not. In Chapter 1, we will give the basic definitions and examples of spaces used in this work. The general construction of marker sets is developed in this work. These marker sets are used to develop several invariant tilings of the equivalence classes of specific variables . Some properties that are equivalent to hyperfiniteness in the certain space are also developed. Lastly, we will give the new result that there is a continuous injective embedding from certain defined variables.
Date:
August 2003
Creator:
Boykin, Charles Martin
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Perceived value of journals for academic prestige, general reading and classroom use: A study of journals in educational and instructional technology.
Conducting research, evaluating research, and publishing scholarly works all play an extremely prominent role for university faculty members. Tenure and promotion decisions are greatly influenced by the perceived value of publications as viewed by members of faculty evaluation committees. Faculty members seeking tenure may be limited to publishing in a limited group of journals perceived to be valuable by members of an academic committee. This study attempted to determine the value of various kinds of periodicals (journals, magazines, and e-journals), based on three principal criteria, as perceived by professionals (university faculty, K-12 practitioners, and corporate trainers) in the educational/instructional technology (E/IT) field. The criteria for journal evaluation were Academic Prestige, General Reading, and Classroom Use. The perceived value of journals based on each criterion was compared to determine any significant differences. Members of the Association for Educational Communications and Technology (AECT) were asked to rate 30 journals in the E/IT field using the three criteria. Statistically significant differences were found among ratings in 63% of the journals. The statistical analyses indicated that differences in the perceived value of journals among E/IT professionals across the three criteria (Academic Prestige, General Reading, and Classroom Use) were statistically significant. It is also noted …
Date:
May 2003
Creator:
Bray, Kaye Evitt
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Construction of a Pseudomonas aeruginosa Dihydroorotase Mutant and the Discovery of a Novel Link between Pyrimidine Biosynthetic Intermediates and the Ability to Produce Virulence Factors
The ability to synthesize pyrimidine nucleotides is essential for most organisms. Pyrimidines are required for RNA and DNA synthesis, as well as cell wall synthesis and the metabolism of certain carbohydrates. Recent findings, however, indicate that the pyrimidine biosynthetic pathway and its intermediates maybe more important for bacterial metabolism than originally thought. Maksimova et al., 1994, reported that a P. putida M, pyrimidine auxotroph in the third step of the pathway, dihydroorotase (DHOase), failed to produce the siderophore pyoverdin. We created a PAO1 DHOase pyrimidine auxotroph to determine if this was also true for P. aeruginosa. Creation of this mutant was a two-step process, as P. aeruginosa has two pyrC genes (pyrC and pyrC2), both of which encode active DHOase enzymes. The pyrC gene was inactivated by gene replacement with a truncated form of the gene. Next, the pyrC2 gene was insertionally inactivated with the aacC1 gentamicin resistance gene, isolated from pCGMW. The resulting pyrimidine auxotroph produced significantly less pyoverdin than did the wild type. In addition, the mutant produced 40% less of the phenazine antibiotic, pyocyanin, than did the wild type. As both of these compounds have been reported to be vital to the virulence response of P. aeruginosa, …
Date:
August 2003
Creator:
Brichta, Dayna Michelle
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Twilight of the Texas Democrats: The 1978 Governor's Race
This dissertation examines the results and strategies used in the 1978 Texas gubernatorial election to determine what issues, demographics, and campaign strategies led the Republican Party nominee, Dallas businessman Bill Clements, to defeat the Democratic nominee, Attorney General John Hill, to break the 105-year old Democratic lock on the governorship and how this victory affected the evolution of Texas into a two-party state. Research materials include manuscripts and published speeches, letters, oral interviews, elections results, and secondary materials.
Date:
December 2003
Creator:
Bridges, Kenneth William
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Trauma Responses, Abuse History, and Exposure to Violence as Risk Factors in Adolescent Sex and Non-Sex Offenders
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Use of this item is restricted to the UNT Community
Several risk factors have been identified for adolescent sex offenders and non-sex offenders. Such risk factors include physical and/or sexual abuse, and exposure to community and/or domestic violence. Additionally, the presence of disinhibitive factors, such as substance use and exposure to violent or pornographic media are also commonly reported in the backgrounds of both sex and non-sex offenders. Similarly, adolescent offenders have reported traumatic reactions to environmental factors such as abuse and violence. Similarities in exposure to the risk and disinhibitive factors described above between adolescent sex and non-sex offenders do not provide an explanation for why some adolescents commit sex offenses, whereas other adolescent offenders do not. This study investigated the discriminative ability of traumatic reactions as a risk factor between male adolescent sex and non-sex offenders. The inclusion of traumatic reactions increased the accuracy of risk factors distinguishing between sex and non-sex offenders. Thus, not only the presence of risk factors, but also the adolescent's reaction to the risk factors, are important predictors of whether he will commit a sexual offense.
Date:
December 2003
Creator:
Briley, Joshua Paul
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Antarctic fact-file
Antarctica is a continent for science. All countries working in Antarctica carry out scientific research, in a surprising range of physical and biological sciences, from the vastness of space to the minute scale of micro-organisms. Activities are regulated by the Antarctic Treaty, which has been in force since 1959 and is signed by all countries operating there. The Treaty reserves the continent for peaceful purposes, and all military and industrial activities are banned.
Date:
2003
Creator:
British Antactic Survey
Object Type:
Text
System:
The UNT Digital Library
Climate change
The Earth's climate has not been constant over geological time. This record is contained in ice, which has built up as snowfall accumulated in distinct yearly layers. Pockets of air trapped between the snow crystals contain traces of past atmospheres, which in turn tell us about the climate at the time the snow formed. Glaciologists collect this record by drilling ice cores and then use sensitive chemical techniques to analyse the layers.
Date:
2003
Creator:
British Antactic Survey
Object Type:
Text
System:
The UNT Digital Library