UNT Theses and Dissertations - 191 Matching Results

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Accelerator Mass Spectrometry Studies of Highly Charged Molecular Ions

Description: The existence of singly, doubly, and triply charged diatomic molecular ions was observed by using an Accelerator Mass Spectrometry (AMS) technique. The mean lifetimes of 3 MeV boron diatomic molecular ions were measured. No isotopic effects on the mean lifetimes of boron diatomic molecules were observed for charge state 3+. Also, the mean lifetime of SiF^3+ was measured.
Date: December 1994
Creator: Kim, Yong-Dal
Partner: UNT Libraries

Accounting Measurement Bias and Executive Compensation Systems

Description: This dissertation presents empirical evidence intended to help answer two research questions. The first question asks whether executive compensation systems appear to exploit the bias in accounting-based performance measures in order to reduce the volatility in executive compensation and to allocate incentives more effectively across the range of activities performed by the executive. The second question asks whether compensation systems systematically differ between firms that use alternative accounting methods and whether any such systematic difference helps explain accounting choice. Parameters estimated in fixed-effects endogenous switching regression models were used to test the risk-shielding and incentive-allocation hypotheses. The models were estimated across a dataset consisting of 1151 executive-year observations of annual compensation paid to 222 top-level executives in 40 oil and gas firms. The dataset was partitioned by accounting method and separate models estimated for the full cost and successful efforts partitions. The tests provided modest support for the risk-shielding and incentive-allocation hypotheses, revealing that accounting measurement bias is used to focus incentives for effort in the exploration activity and to reduce executives' exposure to production risk. The design also allowed an estimate of the proportional change in compensation that was realized from the accounting choice actually made.
Date: December 1994
Creator: Boone, Jeffery Paul
Partner: UNT Libraries

Accounting Regulation and Information Asymmetry in the Capital Markets: An Empirical Study of Accounting Standard SFAS no 87

Description: This study uses both basic and self-selection regression models to test three hypotheses about the effect of SFAS 87 disclosures on information asymmetry during 1985- 1987. Both types of models test the hypotheses after controlling for changes in the inventory holding and order processing costs of the spread, while the self-selection models also control for potential self-selection bias.
Date: August 1994
Creator: Lin, Wen-shan
Partner: UNT Libraries

Addition, Omission and Revision: the Stylistic Changes Made to Zehn Variationen über ein Präludium von Chopin by Ferruccio Busoni

Description: This study examines what Busoni meant by "formal deficiencies" when he described his 1884 version of Chopin Variations, and reveals that changes made to the 1884 version during its process of revision in 1922 correct the "formal deficiencies" and show a fundamental change in Busoni's compositional style and perception of musical motion. Including a detailed analysis of the modifications, omissions, and additions made to the 1922 version (including an examination of the Chopin Prelude in C minor, op. 28, No. 20 as a theme to reveal aspects of its construction used in the variation process), which shows how these changes affect the work's compositional structure.
Date: December 1994
Creator: Yoon, Soomee
Partner: UNT Libraries

The Administration of Auxiliary Services in Texas Public Universities: Analysis and Proposed Integrated Model

Description: The problem of this study was to develop a model for the administration of auxiliary enterprises in Texas higher education as a cooperative effort of administrators and input from other sources. The purposes were to determine which administrators currently have the responsibility for the management of auxiliary services, to evaluate the correlation between the type of administrator and the concern for fiscal and student needs, to identify problems and opportunities for useful administration, and to develop a model integrating the strengths of each administrator and the implementation of new ideas to improve auxiliary enterprise management. A survey instrument consisting of three types of questions was mailed to both Vice Presidents of Fiscal Affairs and Student Affairs at all 26 four-year public institutions in Texas. Part I questions were informational, designed to determine who administers auxiliary services. Part II consisted of 20 questions on a Likert scale to obtain both opinions on the theories of the research, and specialized knowledge of the administrators. Part III was free response to solicit ideas from the administrators for the construction of the model. Paired t-tests were performed to determine knowledge strengths of the administrators. All other information was presented in frequency tables or narrative summaries.
Date: May 1994
Creator: Yarbrough, Marianne (Marianne June)
Partner: UNT Libraries

Adult Christian Education for Baby Boomers: a Descriptive Case Study of Three American Churches

Description: American churches seeking to assimilate baby boomers are struggling to meet the adult educational needs of this group. To determine what models of church-based adult education are used to meet the educational needs of this group, three large, growing American churches known for attracting boomers were identified as sites for research. A qualitative case study research design was used and results were compared using cross-case analysis. Initial data collection included a three-day visit at each church. Data were collected in three phases: Phase One consisted of personal interviews with staff and lay leaders; Phase Two focused on observation of adult education events which took place during the visitation period; Phase Three involved gathering materials that described adult education programs. To optimize the reliability and accuracy of the findings data were subjected to examination by peers, collection methods were applied consistently in each research phase, follow-up contacts were made with each church to verify observations and findings, and case records were created for each site. Eleven categories were selected and the data were presented by category. Within each category, data were delineated and organized into three areas: trends among the churches, noteworthy comments about individual programs, and comparison to the literature in the adult education field.
Date: August 1994
Creator: Donahue, William P. (William Paul)
Partner: UNT Libraries

Adult Survivors of Childhood Sexual Abuse : Characteristics of the Mother-child Relationship

Description: This qualitative study examined the characteristics of the mother-child relationship of adult survivors of childhood sexual abuse at the time of the abuse. The study consisted of data from the McMaster Family Assessment Device (FAD), the Family of Origin Scale (FOS), and a set of structured interview questions designed by the researcher. Autonomy/intimacy concepts from the FOS examined constructs of clarity of expression, responsibility, respect, openness, acceptance of loss and separation, expression of a wide range of feelings, conflict resolution, mood and tone, and empathy.
Date: December 1994
Creator: Motley, Rebecca Roper
Partner: UNT Libraries

Age/Cohort Differences in Aspects of the Self-System

Description: Age/cohort differences in several aspects of the self-system were investigated utilizing a sentence completion paradigm. Eighty-eight adults over age sixty and one hundred eight adults under age forty served as subjects. Subjects were asked to complete 30 self-referent sentence stems which were pre-structured to elicit information from the self-system. Responses were subjected to a content analysis utilizing a coding system which contained concepts used by subjects in their self-representations. Contents were coded for dimensions conceptually related to Physical Health, Autonomy, Self-Evaluation, Depression, Spirituality, and Altruism. Frequencies of codings were counted and subjected to statistical analysis for performing age group comparisons.
Date: May 1994
Creator: Hanselka, Larry L. (Larry Lynn)
Partner: UNT Libraries

AIDS and Aging: Are the Eldery Becoming the New At-Risk Population?

Description: This dissertation breaks new ground. It examines the perceptions of older adults towards AIDS prevention. Using the National Health Interview Survey, 1988: AIDS Knowledge and Attitudes Supplement, a modified Health Belief Model is developed. Despite the low number of older adults 55+ with AIDS, some extenuating circumstances increase their risk of AIDS contraction. Older adults have lower levels of knowledge about AIDS, weaker immune systems and receive more blood transfusions. Societal influences include educational neglect at the hands of physicians, healthcare workers and social service personnel. The first stage of the dissertation involved establishing older adults as an at-risk population through an extensive literature review. Next, the data was described utilizing frequencies, correlations and factor analysis. Frequencies clearly indicated that older adults in the data set had low levels of AIDS knowledge and did not view themselves at risk for AIDS contraction. Correlations between the variables were minimal. A modified Health Belief Model was developed and tested. Multiple regression determined that minimal variation in the two dependent variables, "Perceived Effectiveness of Effective Methods to Prevent AIDS Contraction" and "Perceived Effectiveness of Ineffective Methods to Prevent AIDS Contraction" was accounted for by the independent variables. Although F ratios allowed rejection of the two null hypotheses, beta weights were low. Adjusted R^2's accounted for only 21% and 16% respectively of the variation in the dependent variables. Finally, discrepancies in the model were determined and recommendations made for further research. Most health belief models concentrate on individual social-psychological variables. Due to AIDS' societal consequences, it is proposed that societal providers of education: physicians, social service workers and healthcare personnel need to be included in the model. Recommendations were made for additional research into sexual behavior of older adults and exploration of available training of physicians, healthcare and social service professionals. Finally, recommendations were ...
Date: August 1994
Creator: Allen, Annette Marie
Partner: UNT Libraries

American Grotesque from Nineteenth Century to Modernism: the Latter's Acceptance of the Exceptional

Description: This dissertation explores a history of the grotesque and its meaning in art and literature along with those of its related term, the arabesque, since their co-existence, specifically in literature, is later treated by a well-known nineteenth-century American writer in Tales of the Grotesque and Arabesque- Theories or views of the grotesque (used in literature), both in Europe and America, belong to twelve theorists of different eras, ranging from the sixteenth century to the present period, especially Modernism (approximately from 1910 to 1945)--Rabelais, Hegel, Scott, Wright, Hugo, Symonds, Ruskin, Santayana, Kayser, Bakhtin, (William Van) O'Connor, and Spiegel. My study examines the grotesque in American literature, as treated by both nineteenth-century writers--Irving, Poe, Hawthorne, and, significantly, by modernist writers--Anderson, West, and Steinbeck in Northern (or non-Southern) literature; Faulkner, McCullers, and (Flannery) O'Connor in Southern literature. I survey several novels and short stories of these American writers for their grotesqueries in characterization and episodes. The grotesque, as treated by these earlier American writers is often despised, feared, or mistrusted by other characters, but is the opposite in modernist fiction.
Date: August 1994
Creator: Kisawadkorn, Kriengsak
Partner: UNT Libraries

An Analysis of Preferred Equity Redemption Cumulative Stock

Description: This dissertation examines whether Percs, Preferred Equity Redemption Cumulative Stocks, are properly priced regarding to the relevant securities, such as the underlying common stock, the long-term call option of the stock, and so on. Test results indicate that Percs were overpriced with respect to the equivalent packages composed of the relevant securities. Further tests on arbitrage restrictions show that transaction costs would prevent arbitrage profits. This dissertation also examines the market reactions to Percs offerings. Test results reveal that the market reactions to the announcement of Percs offering and the actual issuance are both significantly negative. Compared to the market reaction on common stock offering announcement, the market reaction on Percs offering announcement is weaker. The overpricing of Percs and the weaker reaction of the market suggest that Percs may have advantages in transaction costs, taxes and some corporate finance issues.
Date: May 1994
Creator: Pu, Hansong
Partner: UNT Libraries

An Analysis of Texas Special Education Due Process Hearings from September 1, 1983, to September 1, 1992: Implications for the Administration of Special Education Programs

Description: The purpose of this study was to assess the effects of selected characteristics on the outcomes of those special education due process hearings brought forth in the state of Texas from September 1, 1983, to September 1, 1992. A further purpose was to determine if district characteristics of size or location affect the likelihood of a district's becoming involved in a special education due process hearing. Data for the study was collected for all special education due process hearings conducted in the State of Texas from September 1, 1983, to September 1, 1992. A coding system was used to record the data for the study and the Chi-square test of independence was used to determine whether a relationship existed between the selected variable (hearing issue, disability classifications and restrictiveness of placement) and hearing outcome. The frequency of involvement in hearings for districts of various size and urban characteristics was displayed as a percentage.
Date: August 1994
Creator: Webb, Paula J. (Paula Jean)
Partner: UNT Libraries

An Analysis of the Management and Leadership Development Training Needs of Texas Principals on the Texas State Board of Education's Core Curriculum

Description: The problem of this study was to determine training priorities as mandated by the Texas Legislature on the CORE Curriculum for Management and Leadership Development and their implications for Texas public school principals. Purposes of the study were to validate an instrument for assessing principals' training needs, to provide data for planning and delivering training for principals, to provide results to staff developers, and to develop a profile of similarities and differences in the perceptions of principals and their superordinates.
Date: December 1994
Creator: Morris, Amelia Marie
Partner: UNT Libraries

An Application of Grundgestalt Theory in the Late Chromatic Music of Chopin: a Study of his Last Three Polonaises

Description: The late chromatic music of Chopin is often difficult to analyze, particularly with a system of Roman numerals. The study examines Schoenberg's Grundgestalt concept as a strategy for explaining Chopin's chromatic musical style. Two short Chopin works, Nocturne in E-flat major. Op. 9, No. 2, and Etude in E major, Op. 10, No. 3, serve as models in which the analytic method is formulated. Root analysis, in the manner of eighteenth-century theorist Simon Sechter, is utilized to facilitate harmonic analysis of chromatic passages. Based upon the analytic method developed, the study analyzes the last three polonaises of Chopin: Polonaise in F-sharp minor, Op. 44, Polonaise in A-flat major, Op. 53, and Polonaise-Fantasie in A-flat major, Op. 61. The Grundgestalt-based analysis shows harmonic, melodic and rhythmic connections in order to view Chopin's chromaticism and formal structure from a new perspective. With this approach, the chromaticism is viewed as essential to the larger form.
Date: December 1994
Creator: Spicer, Mark Joseph
Partner: UNT Libraries

The Application of Statistical Classification to Business Failure Prediction

Description: Bankruptcy is a costly event. Holders of publicly traded securities can rely on security prices to reflect their risk. Other stakeholders have no such mechanism. Hence, methods for accurately forecasting bankruptcy would be valuable to them. A large body of literature has arisen on bankruptcy forecasting with statistical classification since Beaver (1967) and Altman (1968). Reported total error rates typically are 10%-20%, suggesting that these models reveal information which otherwise is unavailable and has value after financial data is released. This conflicts with evidence on market efficiency which indicates that securities markets adjust rapidly and actually anticipate announcements of financial data. Efforts to resolve this conflict with event study methodology have run afoul of market model specification difficulties. A different approach is taken here. Most extant criticism of research design in this literature concerns inferential techniques but not sampling design. This paper attempts to resolve major sampling design issues. The most important conclusion concerns the usual choice of the individual firm as the sampling unit. While this choice is logically inconsistent with how a forecaster observes financial data over time, no evidence of bias could be found. In this paper, prediction performance is evaluated in terms of expected loss. Most authors calculate total error rates, which fail to reflect documented asymmetries in misclassification costs and prior probabilities. Expected loss overcomes this weakness and also offers a formal means to evaluate forecasts from the perspective of stakeholders other than investors. This study shows that cost of misclassifying bankruptcy must be at least an order of magnitude greater than cost of misclassifying nonbankruptcy before discriminant analysis methods have value. This conclusion follows from both sampling experiments on historical financial data and Monte Carlo experiments on simulated data. However, the Monte Carlo experiments reveal that as the cost ratio increases, robustness of linear ...
Date: December 1994
Creator: Haensly, Paul J.
Partner: UNT Libraries

Autophosphorylation and Autoactivation of an S6/H4 Kinase Isolated From Human Placenta

Description: A number of protein kinases have been shown to undergo autophosphorylation, but few have demonstrated a coordinate increase or decrease in enzymatic activity as a result. Described here is a novel S6 kinase isolated from human placenta which autoactivates through autophosphorylation in vitro. This S6/H4 kinase, purified in an inactive state, was shown to be a protein of Mr of 60,000 as estimated by SDS-PAGE and could catalyze the phosphorylation of the synthetic peptide S6-21, the histone H4, and myelin basic protein. Mild digestion of the inactive S6/H4 kinase with trypsin was necessary, but not sufficient, to activate the kinase fully
Date: May 1994
Creator: Dennis, Patrick B. (Patrick Brian)
Partner: UNT Libraries

Biodiversity of Caddisflies (Trichoptera) of the Interior Highlands of North America

Description: Caddisflies (Trichoptera) were collected from over 500 different locations throughout the Interior Highlands (Ozark, Ouachita, Arbuckle, and Wichita Mountains) between March 1990 and March 1994. I systematically sampled representative lotic and lentic habitats in 131 natural watersheds that comprise the 17 different physiographic subregions of this area. From my examination of approximately 60,000 specimens, surveys of regional museum collections, and review of literature records, I document 229 species distributed in 16 families and 58 genera. Included in this total are 27 endemic species and 15 new regional records. Descriptions are provided for a species new to science (Cheumatopsyche robisoni), four larvae (Helicopsyche limnella, H. piroa, Marilia species A, Polycentropus crassicornis) and a female (Helicopsyche piroa). Hydropsyche reiseni Denning, previously known only from the Arbuckle Mountains, is reduced in synonymy with H. arinale Ross. Further, I provide illustrated family, generic, and selected species-level keys that reflect this regional biodiversity.
Date: August 1994
Creator: Moulton, Stephen R. (Stephen Richard)
Partner: UNT Libraries

Breast Cancer Screening Health Behaviors in Older Women

Description: Health beliefs of 221 postmenopausal women were assessed to predict the Breast Cancer Screening Behaviors of breast self-examination (BSE) and utilization of mammography. Champion's (1991) revised Health Belief Model (HBM) instrument for BSE, which assesses the HBM constructs of Seriousness, Susceptibility, Benefits, Barriers, Confidence and Health Motivation, was utilized along with her Barriers and Benefits instrument for mammography usage. Ronis' and Harel's (1989) constructs of Severity-Late and Severity-Early were evaluated along with Cuing and demographic variables. These exogenous latent constructs were utilized in a LISREL path model to predict Breast Cancer Screening Behavior.
Date: August 1994
Creator: Hammond, Marsha V.
Partner: UNT Libraries

(Broken) Promises

Description: The dissertation begins with an introductory chapter that examines the short story cycle as a specific genre, outlines tendencies found in minimalist fiction, and discusses proposed definitions of the short story genre. The introduction examines the problems that short story theorists encounter when they try to.define the short story genre in general. Part of the problem results from the lack of a definition of the short story in the Aristotelian sense of a definition. A looser, less traditional definition of literary genres helps solve some of the problem. Minimalist fiction and the short story cycle are discussed as particular forms of the short story. Sixteen short stories follow the introduction.
Date: August 1994
Creator: Champion, Laurie, 1959-
Partner: UNT Libraries

Canadian Supreme Court Decision-making, 1875-1990 : Institutional, Group, and Individual Level Perspectives

Description: Since its creation in 1875, the Canadian Supreme Court has undergone several institutional transitions. These transitions have changed the role of the Court toward a more explicit and influential policy making role in the country. Despite this increasingly significant role, very limited attention has been given to the Court. With this perspective in mind, this study presents several analyses on the decision making process of the Canadian Supreme Court. At the institutional level, the study found that within the stable workload, the cases composition has shifted away from private law to public law cases. This shift is more significant when one concentrates on appeals involving constitutional and rights cases. The study found that this changing pattern of the Court's decision making was a result of the institutional changes shaping the Supreme Court. Statistically, the abolition of rights to appeal in civil cases in 1975 was found to be the most important source of the workload change.
Date: May 1994
Creator: Sittiwong, Panu
Partner: UNT Libraries

Career Counseling with Academically Talented Students

Description: Academically talented college students have unique development needs that often go unmet. One area that is currently attracting more attention in the academically talented literature is career counseling. The purpose of the present study was to compare the effectiveness of individual and group career counseling interventions. Subjects included 54 students from a special Texas program that provides the opportunity for gifted students to attend college during their final two years of high school. One instrument used assessed identity, confidence, career goals, and professional identity. The second instrument evaluated whether the subjects had recently discussed career concerns, were seeing a vocational counselor, or seeking career information. A pre-test was followed by group or individual intervention, and a post-test was conducted two months later. Results indicated an overall decrease on the instrument assessing professional identity and career goals. This study revealed no difference in effectiveness between group or individual interventions. Further research in this area is necessary to develop and refine the most effective career counseling interventions for the academically talented student.
Date: August 1994
Creator: Rowe, Kirk (Kirk Lee)
Partner: UNT Libraries

A Case Study of a School Superintendent's Decision Making in Initiating Year-Round Education in a Public School in Texas

Description: Using a case study approach, this investigation focused on the decision-making processes and leadership of a school district superintendent as he initiated and implemented the school restructuring effort of year-round education. The study was conducted during 1 school year period but was enhanced through a 3 year follow-up report. The research questions focused on the superintendent's decision-making processes and the impact that groups had on those processes. Questions also emerged during the data collection phase of the study about the superintendent's change-facilitation leadership behaviors. A Texas school superintendent committed to the implementation of year-round education was selected as the subject of this study. Data were collected for 1 school year by the participant observer who served as an unpaid intern to the superintendent. Data included field notes recorded during the day-to-day operations and interactions of the district, meetings which the superintendent attended, newspaper articles, district memoranda and documents, observation, and interviews. Field notes and interviews were triangulated with document analysis to identify patterns in the data and to identify the factors influencing the decision-making processes and the leadership behaviors of the superintendent.
Date: August 1994
Creator: Mefford, Ellyn Eckert
Partner: UNT Libraries