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 Decade: 1990-1999
 Collection: UNT Theses and Dissertations
Academic Achievement: Examining the Impact of Community Type at a Small Liberal Arts College in Texas
Hierarchical regression was used to determine if high school community type is an effective predictor of academic success when controlling for demographics, prior academic achievement, socioeconomic status, and current commitment or work habits for students entering Austin College in 1992,1993, and 1994 . Findings revealed that there is a relationship between attending high school in community types of rural and independent town controlling for the effects of SAT scores, high school rank, sex, and late application deposit on first semester grade point average. digital.library.unt.edu/ark:/67531/metadc279165/
Academic Lineage and Student Performance in Medical School
This research investigated the association between academic lineage and student performance in medical school. The purposes of the study were to: (1) determine whether the Carnegie classifications of medical school applicants' institutions of origin are associated with academic performance in medical school; (2) consider the relationship between the admission selectivity of the schools of origin and the academic performance of medical school students; (3) compare the performance of medical students from institutions under public governing control with students from privately controlled institutions; and (4) establish a model by which the relative academic strengths of applicants from a variety of undergraduate institutions can be understood more clearly based on the previous performance of medical students from schools with similar institutional characteristics. A review of the literature on medical school admissions was completed and used to develop this research. Medical students from the University of Texas Southwestern Medical Center at Dallas who enrolled between the years 1990 and 1994 and graduated or were dismissed between the years 1994 and 1998 were selected as the sample for the study (n=933). The undergraduate institution of origin for each student was coded based on its Carnegie classification, admissions selectivity group, and whether its governing control was public or private. Because the sample was not randomly selected and the data likely would not meet the assumptions of equal means and variance with the population, nonparametric analyses of variance and multiple comparison tests were completed to compare the groups of the independent variables over each dependent variable. The analyses revealed that for the sample of medical students selected for this study there was an association between academic lineage and student performance in medical school. Differences were found among Carnegie classifications on the dependent variables of cumulative medical school grade point average, class rank, failure rate, and score on Step 1 of the United States Medical Licensure Examination. Further, it was found that admission selectivity was also associated with student performance in medical school for each dependent variable except failure rate. Finally, the study results indicated no association between public or private governing control and student performance in medical school. digital.library.unt.edu/ark:/67531/metadc2206/
Accelerator Mass Spectrometry Studies of Highly Charged Molecular Ions
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. digital.library.unt.edu/ark:/67531/metadc279004/
Accounting Measurement Bias and Executive Compensation Systems
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. digital.library.unt.edu/ark:/67531/metadc278949/
Accounting Regulation and Information Asymmetry in the Capital Markets: An Empirical Study of Accounting Standard SFAS no 87
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. digital.library.unt.edu/ark:/67531/metadc277661/
O-Acetylserine Sulhydralase-A from Salmonella typhimurium LT-2: Thermodynamic Properties and SPectral Identification of Intermediates
O-Acetylserine Sulfhydrylase (OASS) is a pyridoxal phosphate enzyme that catalyzes the reaction of O-acetyl-Lserine with sulfide to give L-cysteine. OASS is present as two isoforms, designated -A and -B. The kinetic mechanism of OASS-A is well known and there is also much known concerning the acid-base chemistry of the enzyme. However, little is known concerning the location of the rate determining steps, the sequencing of chemical steps that occur at the active site, or the nature of the rate determining transition states. The studies performed to help elucidate these aspects of the OASS-A mechanism included determination of the thermodynamics of both half reactions, along with studies utilizing substrate analogs of OAS halting the reaction at specific points along the reaction pathway allowing the identification of reaction intermediates. The free energy change of the first half reaction was shown to be -5.7 Kcal/mole while the second half reaction was shown to be, for all intents and purposes, irreversible. Intermediates along the reaction pathway that have been previously identified include the internal Schiff base and the a-aminoacrylate. The external Schiff base was identified using the analogs cysteine, alanine, and glycine while the geminal diamine was identified using the analog serine. Formation of the external aldimine was shown to be pH dependent with a pK of 8.1 ± 0.3 most likely representing a general base that accepts a proton from the a-amine of cysteine to facilitate a nucleophilic attack on C4r of the PLP imine. Formation of the geminal diamine was also shown to be pH dependent with two pK values having an average value of 8.1. One of the groups most likely represents the general base which accepts a proton from the a-amine of cysteine while the second group likely interacts with the amino acid side chain to orientate the amino acid into the correct configuration. digital.library.unt.edu/ark:/67531/metadc278042/
N-Acylethanolamines and Plant Phospholipase D
Recently, three distinct isoforms of phospholipase D (PLD) were identified in Arabidopsis thaliana. PLD α represents the well-known form found in plants, while PLD β and γ have been only recently discovered (Pappan et al., 1997b; Qin et al., 1997). These isoforms differ in substrate selectivity and cofactors required for activity. Here, I report that PLD β and γ isoforms were active toward N-acylphosphatidylethanolamine (NAPE), but PLD α was not. The ability of PLD β and γ to hydrolyze NAPE marks a key difference from PLD α. N-acylethanolamines (NAE), the hydrolytic products of NAPE by PLD β and γ, inhibited PLD α from castor bean and cabbage. Inhibition of PLD α by NAE was dose-dependent and inversely proportional to acyl chain length and degree of unsaturation. Enzyme kinetic analysis suggested non-competitive inhibition of PLD α by NAE 14:0. In addition, a 1.2-kb tobacco (Nicotiana tabacum L.) cDNA fragment was isolated that possessed a 74% amino acid identity to Arabidopsis PLD β indicating that this isoform is expressed in tobacco cells. Collectively, these results provide evidence for NAE producing PLD activities and suggest a possible regulatory role for NAE with respect to PLD α. digital.library.unt.edu/ark:/67531/metadc279270/
Addition, Omission and Revision: the Stylistic Changes Made to Zehn Variationen über ein Präludium von Chopin by Ferruccio Busoni
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. digital.library.unt.edu/ark:/67531/metadc278472/
Adhesion/Diffusion Barrier Layers for Copper Integration: Carbon-Silicon Polymer Films and Tantalum Substrates
The Semiconductor Industry Association (SIA) has identified the integration of copper (Cu) with low-dielectric-constant (low-k) materials as a critical goal for future interconnect architectures. A fundamental understanding of the chemical interaction of Cu with various substrates, including diffusion barriers and adhesion promoters, is essential to achieve this goal. The objective of this research is to develop novel organic polymers as Cu/low-k interfacial layers and to investigate popular barrier candidates, such as clean and modified tantalum (Ta) substrates. Carbon-silicon (C-Si) polymeric films have been formed by electron beam bombardment or ultraviolet (UV) radiation of molecularly adsorbed vinyl silane precursors on metal substrates under ultra-high vacuum (UHV) conditions. Temperature programmed desorption (TPD) studies show that polymerization is via the vinyl groups, while Auger electron spectroscopy (AES) results show that the polymerized films have compositions similar to the precursors. Films derived from vinyltrimethyl silane (VTMS) are adherent and stable on Ta substrates until 1100 K. Diffusion of deposited Cu overlayers is not observed below 800 K, with dewetting occurred only above 400 K. Hexafluorobenzene moieties can also be incorporated into the growing film with good thermal stability. Studies on the Ta substrates demonstrate that even sub-monolayer coverages of oxygen or carbide on polycrystalline Ta significantly degrade the strength of Cu/Ta chemical interactions, and affect the kinetics of Cu diffusion into bulk Ta. On clean Ta, monolayer coverages of Cu will de-wet only above 600 K. A partial monolayer of adsorbed oxygen (3L O2 at 300 K) results in a lowering of the de-wetting temperature to 500 K, while saturation oxygen coverage (10 L O2, 300 K) results in de-wetting at 300 K. Carbide formation also lowers the de-wetting temperature to 300 K. Diffusion of Cu into the Ta substrate at 1100 K occurs only after a 5-minute induction period. This induction period increases to 10 min for partially oxidized Ta, 15 min for carbidic Ta and 20 min for fully oxidized Ta. digital.library.unt.edu/ark:/67531/metadc2255/
Adjustment of Kindergarten Children through Play Sessions Facilitated by Fifth Grade Students Trained in Child-Centered Play Therapy Procedures and Skills
This research study investigated the effectiveness of the application of child-centered play therapy procedures and skills by trained fifth grade students in play sessions with kindergarten children who had adjustment difficulties. Specifically, this research determined if play sessions with trained fifth grade students facilitated change in kindergarten children's self concept, internalizing behavior, and externalizing behavior and their parents' stress level. digital.library.unt.edu/ark:/67531/metadc278097/
Adlerian Life Style and the Myers-Briggs Type Indicator
The possibility of a relationship between Adlerian life style, as measured by the Life Style Personality Inventory (LSPI), and the Myers-Briggs Type Indicator (MBTI) was examined by this research. The goal of this study was to clarify the relationship between these instruments to broaden the applicability of both instruments for both research and clinical endeavors. Life style is a concept which is vital to therapeutic intervention from an Adlerian frame of reference. Assessment of life style typically involves lengthy therapist interviews. Both the LSPI and the MBTI are questionnaires designed to measure personality variables. The 117 subjects for this study were solicited from individuals seeking counseling from an urban community counseling center. The individuals served by this agency are primarily those diagnosed with Adjustment Disorders. The LSPI and the MBTI were administered individually to each subject. Means and standard deviations were computed for the seven LSPI themes and the MBTI total. Due to a lack of research support for Theme 4 by the LSPI author, the data for this theme were disregarded. The same research indicated a strong bipolar relationship for Themes 7 and 8 (Displaying Inadequacy and Social Interest), which prompted the inclusion of Theme 8 in subsequent data analysis. A correlation analysis was developed. Using the correlation matrix, a factor analysis program was run using the SPSS-X statistical package. The principal components analysis extracted three factors which were refined by a factor rotation using the varimax rotation option. To clarify Factor 3, further analysis was performed with the MBTI data divided by continuum and a second factor analysis was run. Four factors emerged from the data with Factors 1 and 2 remaining unchanged. Factor 1 (Emotional Focusing) and Factor 2 (Confrontation) were loaded with the LSPI themes. Factor 3 (Temperament) and Factor 4 (External-Internal) were loaded with the MBTI scores. This study found that no apparent relationship exists between the variables measured by the LSPI and the MBTI. Questions were raised regarding the descriptive versus pathology-assessing nature of the themes on LSPI. Further research is suggested to define the focus of this instrument. digital.library.unt.edu/ark:/67531/metadc279344/
Adlerian Personality Priorities of Siblings of Individuals with Tourette Syndrome
This study was designed to examine Adlerian personality priorities of siblings of individuals with Tourette Syndrome (TS). This study aimed to investigate whether a difference exists between TS siblings and siblings of those without disabilities on variables related to personality priorities. It was hypothesized that TS siblings would score significantly higher than the control group on the superiority and pleasing personality priorities and significantly lower on the comfort and control personality priorities. Both of the hypotheses were rejected. First, no significant difference was found between TS siblings and the control group on the superiority and pleasing personality priorities. Second, no significant difference was found between TS siblings and the control group on the comfort personality priority, and TS siblings scored significantly higher than the control group on the control personality priority. digital.library.unt.edu/ark:/67531/metadc278606/
The Administration of Auxiliary Services in Texas Public Universities: Analysis and Proposed Integrated Model
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. digital.library.unt.edu/ark:/67531/metadc278759/
Adolescent Pregnancy: Voices Heard in the Everyday Lives of Pregnant Teenagers
The purpose of this study is to examine the problems that pregnant teenagers encounter at school and at home while they are trying to complete their high school education. Data were collected by in-depth interviews. Twenty pregnant adolescents, who were between the ages of 15 through 18, and were participants in a special teen pregnancy program were interviewed. The major findings in this study included the respondents': 1) unstable family life histories, 2) denial that they were pregnant, 3) need for self-identity as an adult, 4) conflict with parents and 5) motivation to complete their high school education. This study points to the need for more research on the problems that pregnant adolescents encounter in their everyday lives. digital.library.unt.edu/ark:/67531/metadc279259/
Adsorbate-enhanced Corrosion Processes at Iron and Iron Oxide Surfaces
This study was intended to provide a fuller understanding of the surface chemical processes which result in the corrosion of ferrous materials. digital.library.unt.edu/ark:/67531/metadc279113/
Adult Age and Ethnicity as Factors in Success on the TASP : A Measurement of the Texas Academic Skills Program (TASP) Test
This study examined the association among ethnicity, age, and scores on selected portions of the TASP and MAPS tests. This study further examined if the TASP could identify students for success in college level course work as well or better than selected portion of the MAPS test. digital.library.unt.edu/ark:/67531/metadc278435/
Adult Attention Deficit Hyperactivity Disorder Personality Characteristics and Comorbidity
Attention-deficit/hyperactivity disorder (ADHD) is surrounded by confusion and controversy regarding its definition, course, etiology and treatment. Among adults, ADHD is rarely considered a diagnostic reality of primary importance and is often overlooked. This study provides descriptive validity for adult ADHD in distinguishing it from controls, and identifying both a pure condition and one wrought with comorbidity. digital.library.unt.edu/ark:/67531/metadc279399/
Adult Christian Education for Baby Boomers: a Descriptive Case Study of Three American Churches
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. digital.library.unt.edu/ark:/67531/metadc277779/
Adult Discouragement: Traditonal College Students
This study resulted in the development of the Discouragement Scale for Adults (DSA), an assessment instrument for the Adlerian construct of discouragement in adults more than 18 years of age. The DSA is a 60-item instrument that contains five sub-scales corresponding to five life tasks identified in Adlerian literature as work, love, society, self, and spirituality. Age, gender, and ethnicity norms were established for the DSA using a diverse sample (N=586). Additional normative data was developed with a presumed discouraged sample (N=47), and a special sample of traditional college students aged 18-27 years (N=531). Findings on the norm sample indicated that females are less discouraged than males on the Total DSA and on society and spirituality sub-scales. The 18-34 year old group was more discouraged than other age groups on the Total DSA and on work, society, and spirituality sub-scales. Presumed discouraged sample findings indicated that females were less discouraged than males on the society sub-scale. College student findings indicated that females were less discouraged than males on the Total DSA and sub-scales of love, society, spirituality, and work. A significant difference was found among ethnic groups in self sub-scales. Students with no absences per week were less discouraged than students with two absences per week. Students with lower grade point averages (GPA) were more discouraged on the Total DSA and work sub-scales. DSA internal consistency coefficients were .9392, .9496, and .9327 for norm, presumed discouraged, and college student samples respectively. Correlations between DSA and two social interest surveys reflect an inverse relationship between discouragement and social interest. Results indicate that the DSA is a useful assessment instrument for research and counseling purposes with college students. Further research should include greater geographical and ethnic diversity as well as validation among diverse college samples and non-traditional students. Additionally, a standard range of scores should be established to indicate varying levels of discouragement. digital.library.unt.edu/ark:/67531/metadc279255/
An Adult Educational Research Model for Developing an Evaluation System for Clergy
Formal job performance evaluation of a church's pastoral staff has been almost nonexistent in many churches. While business and education have been making strides in evaluation techniques during the past three decades, the church is just beginning to notice the need for this kind of accountability and ongoing professional development. In this research, the author applied the evaluation techniques of education to church pastoral staff members. Evaluation can be understood as both a formative process and a summative decision. The steps to planning an evaluation that will be both formative and summative are discussed. Qualifying the ministerial tasks through objective job descriptions will enable the church to quantify the job performance through evaluation. Suggestions are given for developing a ministerial evaluation instrument. In this research a model from educational evaluation was adapted for use in a local church setting. One denomination was selected to demonstrate the process of evaluation development. Denominational governments differ considerably. Therefore, the key stakeholders of the church for the chosen denomination were identified as pastors and church board members. These stakeholders were used as a "panel of experts." The Delphi technique was used to develop consensus from the participants concerning (1) the core skills of ministerial effectiveness and (2) the quality indicators to measure those core skills. This required two rounds, one for identifying the core skills and one for identifying quality indicators. Each round consisted of three surveys. The research identified seven core skills for ministerial effectiveness and a number of quality indicators to measure each core skill. The results were used to demonstrate how an evaluation tool could be developed from the data. This evaluation tool was the consensus of the panel of experts in this study. While the process is a model that could be similar for any church's "panel" of participants, the resulting core skills, quality indicators and evaluation tool would vary for each "panel". digital.library.unt.edu/ark:/67531/metadc277930/
Adult Survivors of Childhood Sexual Abuse : Characteristics of the Mother-child Relationship
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. digital.library.unt.edu/ark:/67531/metadc278448/
Advanced Molecular and Microbial Techniques: a Complete Laboratory Notebook
The purpose of this project is to produce a complete and thorough notebook that may be used to supplement laboratory coursework. Its intent is to be used primarily by the students to aid them in understanding background information and the proper laboratory procedures involved in various types of experiments. The laboratory notebook is a summation of all the experiments and procedures used in the six-credit hour Advanced Microbial and Molecular Biology (BIOL 5160) course offered during the summer semester at the University of North Texas. This class is a team taught effort by Professors O'Donovan and Kunz. The course is constructed as an intensive practice exercise to teach the student about gene mutations, biosynthetic pathways, preparation and analysis of plasmid DNA, and many other topics included in the notebook. digital.library.unt.edu/ark:/67531/metadc278293/
Affective Reactions and Psychosocial Functioning in the Course of Psycho-Educational Assessment
Every day, children throughout the United States are given psychological evaluations for many different clinical and psycho-educational purposes. Very little research has attempted to investigate children's responses to the experience of having intellectual and achievement tests administered. The goal of the current research was to explore the effect a psycho-educational evaluation has on children in areas of self-concept and anxiety. Dependent variables consisted of pre- and post-test measures of anxiety and self-concept. A total of 75 children in the 4th 5th and 6th grades were recruited after referral for evaluation and possible placement in the Talented and Gifted Program or Special Education. This study employed Analysis of Variance (ANOVA), t-tests, multiple regression analysis, and correlational analysis. Findings included initial evidence that children endorsed decreased anxiety after psycho-educational assessments rather than increased anxiety, suggesting that fear of unknown situations may be more anxiety provoking than the actual situation itself, potentially beneficial findings for psychology and psychometric professionals who evaluate children daily. Students endorsement of academic self-concept significantly predicted anxiety after a psycho-educational evaluation, indicating that students who feel capable in academic areas may endorse less anxiety after an evaluation than students who do not feel academically capable. Finally, negative verbal interaction with parents significantly predicted lower general self-concept scores, providing evidence that the manner in which parents verbally relate to their children may have significant impact for the mental health of children. digital.library.unt.edu/ark:/67531/metadc2210/
The Affects of Religiosity on Anomie
This study explores the relationship between religion and anomie. The theoretical framework of Durkheim and Merton was used to suggest the hypothetical relationship between the two variables: as religiosity increases, anomie decreases. A secondary analysis was conducted using the 1991 General Social Survey (GSS). The GSS is one of the largest annual surveys conducted by the National Opinion Research Center. There were 1517 adult respondents composing the 1991 cross-national sample. Questions measuring both the belief and action dimensions of religion were used to measure respondents' level of religiosity. Questions from the Srole Scale of Anomia were used to measure respondents' level of anomia. Durkheim's theory that religion functions to integrate individuals into the larger society and therefore diminish levels of anomie was not supported with this data. While the lack of significant findings did not support the theory, neither did it disprove it. The hypothetical inverse relationship between class and anomie was supported with this data. Another hypothetical relationship, that of the most religious, women experience less anomie than men, was also not supported due to the lack of a significant relationship among the primary variables. Continued use of comprehensive and large scale surveys such as the General Social Survey is crucial. This research suggests the need for further testing of these hypotheses using more elaborate measures. digital.library.unt.edu/ark:/67531/metadc278721/
African-American Senior Administrators of Colleges and Universities in American Higher Education: Identification of Characteristics in Their Career Progression
This study identified and compared characteristics in the career progression of African-American college presidents of institutions in the continental United States. The study was concerned with personal, educational and professional characteristics of these senior level administrators. From a population of 141 individuals, 73 presidents participated in this study. Frequencies, means, percentages, chi-square, crosstabulations and analysis of variance (ANOVA) were employed in the analysis of data. The level of significance was set at 0.05. digital.library.unt.edu/ark:/67531/metadc277660/
The Afro-British Slave Narrative: The Rhetoric of Freedom in the Kairos of Abolition
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The dissertation argues that the development of the British abolition movement was based on the abolitionists' perception that their actions were kairotic; they attempted to shape their own kairos by taking temporal events and reinterpreting them to construct a kairotic process that led to a perceived fulfillment: abolition. Thus, the dissertation examines the rhetorical strategies used by white abolitionists to construct an abolitionist kairos that was designed to produce salvation for white Britons more than it was to help free blacks. The dissertation especially examines the three major texts produced by black persons living in England during the late eighteenth centuryIgnatius Sancho's Letters of the Late Ignatius Sancho (1782), Ottobauh Cugoano's Thoughts and Sentiments on the Evil of Slavery (1787), and Olaudah Equiano's The Interesting Narrative of the Life of Olaudah Equiano, or Gustavus Vassa, the African (1789)to illustrate how black rhetoric was appropriated by whites to fulfill their own kairotic desires. By examining the rhetorical strategies employed in both white and black rhetorics, the dissertation illustrates how the abolitionists thought the movement was shaped by, and how they were shaping the movement through, kairotic time. While the dissertation contends that the abolition movement was rhetorically designed to provide redemption, and thus salvation, it illustrates that the abolitionist's intent was not merely to save the slave, but to redeem blacks first in the eyes of white Christians by opening blacks to an understanding and acceptance of God. Perhaps more importantly, abolitionists would use black salvation to buy back their own souls and the soul of their nation in the eyes of God in order to regain their own salvation lost in the slave trade. But ironically, they had to appear to be saving others to save themselves. So white abolitionists used the black narratives to persuade their overwhelmingly white audience that slavery was as bad for them as it was for the African slave. And in the process, a corpus of black writing was produced that gives current readers two glimpses of one world. digital.library.unt.edu/ark:/67531/metadc2278/
Age/Cohort Differences in Aspects of the Self-System
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. digital.library.unt.edu/ark:/67531/metadc279210/
AIDS and Aging: Are the Eldery Becoming the New At-Risk Population?
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 made to provide training and education for both professionals as well as the elderly to prevent their growth into an at-risk population. digital.library.unt.edu/ark:/67531/metadc278037/
AIDS Preventative Behavior Among Taiwanese University Students
This study used the Health Belief Model to examine the predictors of AIDS preventive behavior. The independent variables were the variables of individual perception, modifying factors (psychological variables), and likelihood variables. The respondents, the Taiwanese students of the University of North Texas, were influenced both by Chinese sexuality and Western values in their AIDS-risk behavior. The results revealed that 90% of the respondents were misinformed on the availability of AIDS vaccine. In addition, a majority of the students were either abstaining from sex or practicing monogamy. Using Pearson's correlation coefficient and multiple regression analysis, this study found that the psychological variables rather than cognitive variables significantly influenced the respondents' AIDS preventive behavior. Finally, suggestions were made for future research on AIDS, and for AIDS preventive behavior campaigns. digital.library.unt.edu/ark:/67531/metadc279286/
Alcohol Use, Violence, and Psychological Abuse in Intimate Relationships
Women in distressed relationships who had sustained severe psychological abuse and either no, moderate, or severe violence from their partner were included (N = 93). Men's and women's alcohol use did not differ with level of violence. Different patterns were found in the moderate violence group regarding women's beliefs about their partner's substance problem, men's psychological abuse, and the relationship of men's and women's quantity of alcohol use and times intoxicated. Uncertainty resulting from moderate violence may strengthen the emotional impact of psychological abuse. Even when psychological abuse is exacerbated by violence, women may use active coping techniques rather than drinking to cope with abusive relationships. The findings suggest that an inordinate focus on alcohol abuse may be ineffective in combating the problem of domestic violence. digital.library.unt.edu/ark:/67531/metadc279331/
An Algorithm for the PLA Equivalence Problem
The Programmable Logic Array (PLA) has been widely used in the design of VLSI circuits and systems because of its regularity, flexibility, and simplicity. The equivalence problem is typically to verify that the final description of a circuit is functionally equivalent to its initial description. Verifying the functional equivalence of two descriptions is equivalent to proving their logical equivalence. This problem of pure logic is essential to circuit design. The most widely used technique to solve the problem is based on Binary Decision Diagram or BDD, proposed by Bryant in 1986. Unfortunately, BDD requires too much time and space to represent moderately large circuits for equivalence testing. We design and implement a new algorithm called the Cover-Merge Algorithm for the equivalence problem based on a divide-and-conquer strategy using the concept of cover and a derivational method. We prove that the algorithm is sound and complete. Because of the NP-completeness of the problem, we emphasize simplifications to reduce the search space or to avoid redundant computations. Simplification techniques are incorporated into the algorithm as an essential part to speed up the the derivation process. Two different sets of heuristics are developed for two opposite goals: one for the proof of equivalence and the other for its disproof. Experiments on a large scale of data have shown that big speed-ups can be achieved by prioritizing the heuristics and by choosing the most favorable one at each iteration of the Algorithm. Results are compared with those for BDD on standard benchmark problems as well as on random PLAs to perform an unbiased way of testing algorithms. It has been shown that the Cover-Merge Algorithm outperforms BDD in nearly all problem instances in terms of time and space. The algorithm has demonstrated fairly stabilized and practical performances especially for big PLAs under a wide range of conditions, while BDD shows poor performance because of its memory greedy representation scheme without adequate simplification. digital.library.unt.edu/ark:/67531/metadc278922/
Alterations in Human Baroreceptor Reflex Regulation of Blood Pressure Following 15 Days of Simulated Microgravity Exposure
Prolonged exposure to microgravity is known to invoke physiological changes which predispose individuals to orthostatic intolerance upon readaptation to the earth's gravitational field. Attenuated baroreflex responsiveness has been implicated in contributing to this inability to withstand orthostatic stress. To test this hypothesis, eight individuals were exposed to 15 days of simulated microgravity exposure using the 6° head-down bed rest model. Prior to, and after the simulated microgravity exposure, the following were assessed: a) aortic baroreflex function; b) carotid baroreflex function; c) cardiopulmonary baroreflex function; and d) the degree of interaction between the cardiopulmonary and carotid baroreflexes. digital.library.unt.edu/ark:/67531/metadc278142/
Alternative Funding Models for Financing Construction of Public School Facilities and Debt Retirement
The main purpose of this study was to examine the various finance models that are presently being used to finance facilities and to provide information for the Texas legislature, the Texas Education Agency, and local school districts concerning facilities funding models that might be used in Texas. Based on the information gathered and analyzed, several conclusions are drawn and recommendations regarding state funding of capital projects in the State of Texas are made. The model recommended for Texas is one that provides for an equalized grant and includes formulas for the distribution of state money. digital.library.unt.edu/ark:/67531/metadc279337/
Aluminum and Copper Chemical Vapor Deposition on Fluoropolymer Dielectrics and Subsequent Interfacial Interactions
This study is an investigation of the chemical vapor deposition (CVD) of aluminum and copper on fluoropolymer surfaces and the subsequent interfacial interactions. digital.library.unt.edu/ark:/67531/metadc279304/
Ambiguity of Loss, Anticipatory Grief, and Boundary Ambiguity in Caregiver Spouses and Parents
The purpose of the present cross-sectional study was to examine the effects of ambiguity of loss and type of caregiver-to-patient relationship on anticipatory grief, negative physical and psychological outcomes associated with grief, and boundary ambiguity in family caregivers of chronically ill patients. Questionnaires were completed by 23 parents of ill children and 30 spouses of ill mates. Using an original and a revised concept for level of ambiguity, partial support was found for the prediction that parents and spouses in high ambiguity of loss circumstances would report more anticipatory grief than those in low ambiguity ones. Contrary to prediction, a slight but nonsignificant trend occurred for parents and spouses in low ambiguity situations to report more negative physical and psychological effects associated with grief as well. Level of ambiguity was not found to impact boundary ambiguity as had been hypothesized. Spouses reported more boundary ambiguity than parents, regardless of level of ambiguity of the loss. Contrary to prediction that parents would report less anticipatory grief and more negative physical and psychological outcomes than spouses, generally, no significant differences were found between the two groups. However, using the original concept of ambiguity, parents did tend to recall more past grief than spouses. The study highlighted several methodological concerns which impact research on loss and grief, particularly the difficulty involved in recruiting participants with subsequent occurrence of sampling bias, rudimentary status of available measurement tools, and a host of potentially confounding personal and sociodemographic variables. The present study supports a view of the loss which occurs in families dealing with chronic illness as a complex process whose impact on grief, distress, and family upheaval is influenced by multiple factors. Such factors include both the ambiguity of the loss and the type of family relationship involved. Complex research of a longitudinal nature using psychosocial models of illness is needed to better delineate the impact of factors such as these. digital.library.unt.edu/ark:/67531/metadc278288/
The American Eve: Gender, Tragedy, and the American Dream
America has adopted as its own the Eden myth, which has provided the mythology of the American dream. This New Garden of America, consequently, has been a masculine garden because of its dependence on the myth of the Fall. Implied in the American dream is the idea of a garden without Eve, or at least without Eve's sin, traditionally associated with sexuality. Our canonical literature has reflected these attitudes of devaluing feminine power or making it a negative force: The Scarlet Letter, Moby-Dick, Adventures of Huckleberry Finn, The Great Gatsby, and The Sound and the Fury. To recreate the Garden myth, Americans have had to reimagine Eve as the idealized virgin, earth mother and life-giver, or as Adam's loyal helpmeet, the silent figurehead. But Eve resists her new roles: Hester Prynne embellishes her scarlet letter and does not leave Boston; the feminine forces in Moby-Dick defeat the monomaniacal masculinity of Ahab; Miss Watson, the Widow Douglas, and Aunt Sally's threat of civilization chase Huck off to the territory despite the beckoning of the feminine river; Daisy retreats unscathed into her "white palace" after Gatsby's death; and Caddy tours Europe on the arm of a Nazi officer long after Quentin's suicide, Benjy's betrayal, and Jason's condemnation. Each of these male writers--Hawthorne, Melville, Twain, Fitzgerald, and Faulkner--deals with the American dream differently; however, in each case the dream fails because Eve will not go away, refusing to be the Other, the scapegoat, or the muse to man's dreams. These works all deal in some way with the notion of the masculine American dream of perfection in the Garden at the expense of a fully realized feminine presence. This failure of the American dream accounts for the decidedly tragic tone of these culturally significant American novels. digital.library.unt.edu/ark:/67531/metadc277633/
American Grotesque from Nineteenth Century to Modernism: the Latter's Acceptance of the Exceptional
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. digital.library.unt.edu/ark:/67531/metadc278030/
American Indian Music in Elementary School Music Programs of Oklahoma : Repertoire, Authenticity and Instruction
The purpose of this study was to determine the instructional methods of Oklahoma's elementary school music educators with respect to the inclusion of an authentic repertoire of American Indian music in the curriculum. The research was conducted through two methods. First, an analysis and review of adopted textbook series and pertinent supplemental resources on American Indian music was made. Second, a survey of K-6 grade elementary music specialists in Oklahoma during the 1997-1998 school year was conducted. digital.library.unt.edu/ark:/67531/metadc278099/
American Literary Pragmatism : Lighting Out for the Territory
This thesis discusses pragmatist philosophy in the nineteenth century and its effect on American literature of the time. digital.library.unt.edu/ark:/67531/metadc278511/
An Analysis of Basic Design Education in Turkey and Implications for Changes in Postsecondary Art Curriculum
This study explored the current status of Turkish basic art education and the objectives of the first year art program at the university level in Turkey. Also, the researcher attempted to explore the objectives and expectations of Turkish art professors and to examine the applicability of certain concepts of American basic design education in the teaching of studio foundation courses in Turkish art schools. The study included the literature review concerning changes in educational philosophy related to the history of design education in the West and in Turkey. digital.library.unt.edu/ark:/67531/metadc277766/
An Analysis of Confidence Levels and Retrieval of Procedures Associated with Accounts Receivable Confirmations
The study addresses whether differently ordered accounts receivable workprograms and task experience relate to differences in judgments, confidence levels, and recall ability. The study also assesses how treated and untreated inexperienced and experienced auditors store and recall accounts receivable workprogram steps in memory in a laboratory environment. Additionally, the question whether different levels of experienced auditors can effectively be manipulated is also addressed. digital.library.unt.edu/ark:/67531/metadc279326/
An Analysis of Corporate Accounting and Reporting Practices in Bahrain
The primary objective of this dissertation is to determine the factors that have shaped the corporate financial reporting practices in Bahrain. Prior researchers have offered two explanations, environmental factors and cultural importation, for the emergence of financial reporting practices in developing countries. The environmental explanation suggests that a nation's financial reporting practices will be shaped by its socioeconomic structure. The cultural importation explanation states that the desire for international legitimacy creates incentives for developing nation to adopt Western financial reporting practices. Bahrain provided an excellent environment in which to examine the two explanations since its public and closed corporations have similar economic characteristics. Only public corporations are legally required to publish financial reports. I posited that public corporations would try to gain legitimacy for their published reports by adopting Western standards, while closed corporations would not have a similar incentive. I used an interpretive framework to analyze the Bahrain socioeconomic environment and to examine the general financial reporting practices of Bahraini corporations. I found that closed corporations provided data responsive to the Bahraini environment. Public corporations, however, adopted International Accounting Standards. My analysis supported prior researchers7 findings that colonialism, the need for international legitimacy, and international audit firms were important factors in gaining acceptance for Western accounting practices. The adoption of Western financial reporting practices may be dysfunctional to a developing nation like Bahrain if these practices do not provide relevant information about corporate performance. Therefore, Bahrain, as well as other developing countries, needs to proceed cautiously before adopting Western corporate reporting practices. digital.library.unt.edu/ark:/67531/metadc278500/
An Analysis of Factors Associated with Voluntary Disclosure of Management's Responsibilities for Internal Control
The purpose of this study was to identify company characteristics associated with the presence of disclosures regarding internal control in the annual report. Gibbins, Richardson and Waterhouse [1990] have developed a framework from which to examine financial disclosure,. These authors define two dimensions of a company's disclosure position; opportunism and ritualism. I examined the association between variables representing the dimensions identified by these authors and a company's decision regarding disclosure of a management report on internal control. I compared specific characteristics of companies disclosing this information to those of companies not disclosing. The dependent variable represented the presence or absence of disclosure. I used logit analysis to test the significance of the chosen characteristics relative to the decision to include or exclude a management report on internal control in the annual report. My results were consistent with the existence of ritualism with respect to this issue. Reporting on internal controls was associated with membership in the Financial Executives Institute, auditor choice, certain industry designations and prior inclusion of such a report. FEI membership was closely related to initial reporting decisions as well'. I found evidence of opportunism as well. The likelihood of reporting on internal controls was related to company size (and presumably control strength), and growth rates. I also found an association between reporting and the issuance of publicly traded securities in the succeeding year and more moderate levels of debt relative to an industry average. In addition, I found that initial reporting decisions were associated with external events relating to potential legislation of the reporting issue. This research provides insight into the corporate response to reporting on internal controls. digital.library.unt.edu/ark:/67531/metadc278899/
An Analysis of Factors That Influence the Involvement of Faculty in Learning Communities
This research study attempts to analyze variables that influence the extent of faculty involvement in learning communities. A theoretical framework identifies three primary variable sets—faculty background, structural, and organizational/environmental. digital.library.unt.edu/ark:/67531/metadc278927/
An Analysis of How Interest Groups Influence the Policy-making Process for the Individuals With Disabilities Education Act of 1997
This study examined the policy letters and verbal testimony transcripts submitted by interest groups to the United States Department of Education (USDE) in response to the proposed regulations pertaining to the implementation of the 1997 reauthorization of P. L. 105-17, Individuals with Disabilities Education Act (IDEA). Specifically, this study analyzed the emerging themes in the area of discipline. Responses were received from the following interest groups: (a) school administrators, (b) parents, (c) teachers, (d) state educational agencies (SEAs), (e) national educational organizations, and (f) members of the United States Congress. In addition to analyzing the emerging themes, the study compared these themes to ones found in the current literature and court cases. digital.library.unt.edu/ark:/67531/metadc279312/
Analysis of Job Prospects and the Relevance of Printing Education to the Printing Industry: A Case of Nigeria
The overall purpose of this study was to determine the job prospects and relevance of printing education to the printing industry. The study was conducted in four Nigerian cities—Lagos, Kaduna, Kano and Benin City. digital.library.unt.edu/ark:/67531/metadc279356/
Analysis of Memory Interference in Buffered Multi-processor Systems in Presence of Hot Spots and Favorite Memories
In this thesis, a discrete Markov chain model for analyzing memory interference in multiprocessors, is presented. digital.library.unt.edu/ark:/67531/metadc278426/
Analysis of Phytoplankton Responses to Water Chemistry Dynamics in a Moderately Eutrophic North Texas Reservoir
Canonical correspondence analysis (CCA) was used to explore relationships between measured environmental variables and in situ phytoplankton communities in a moderately eutrophic North Texas Reservoir. digital.library.unt.edu/ark:/67531/metadc278929/
An Analysis of Preferred Equity Redemption Cumulative Stock
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. digital.library.unt.edu/ark:/67531/metadc277588/
An Analysis of Program Options for Gifted Middle School Students
The purpose of this study was to compare three different types of programming options for identified gifted and talented middle school students. digital.library.unt.edu/ark:/67531/metadc277734/
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