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The Effects of Raising Grandchildren on the Marital Satisfaction, Life Satisfaction, and Parenting Stress of Grandparents
This study examined the relationship among the variables of marital satisfaction, life satisfaction, and parenting stress of grandparents raising grandchildren and whether the sources and levels of marital satisfaction, life satisfaction, and parenting stress differed among grandparents raising grandchildren and grandparents not raising grandchildren.
Date:
August 1992
Creator:
Aaron, Larry M. (Larry Marion)
System:
The UNT Digital Library
The Impact of Computer Instruction on the Near Transfer and Far Transfer of a General Problem Solving Strategy
The purpose of this study was to examine the impact of computer instruction on the near transfer and far transfer of a means-end analysis problem solving strategy.
Date:
August 1992
Creator:
Abbey, Beverly G. (Beverly Gene)
System:
The UNT Digital Library
University-industry Alliances : A Study of Faculty Attitudes Toward the Effects of Alliances on the Governance and Operations of Institutions of Higher Education
The central purpose of this study was to compare the attitudes of faculty in applied sciences to the attitudes of faculty in liberal arts and other selected fields to determine if they differ significantly from each other in their perceptions of the effects of university-industry alliances on campus governance and operations. Secondary purposes were (a) to appraise the debate on alliances and the effects of alliances on academic values and (b) to contribute to the literature concerning alliances and their potential for improving higher education.
Date:
August 1992
Creator:
Abegunde, Olufemi
System:
The UNT Digital Library
Application of Synthetic Peptides as Substrates for Reversible Phosphorylation
Two highly homologous synthetic peptides MLC(3-13) (K-R-A-K-A-K-T-TK-K-R-G) and MLC(5-13) (A-K-A-K-T-T-K-K-R-G) corresponding to the amino terminal amino acid sequence of smooth muscle myosin light chain were utilized as substrates for protein kinase C purified from murine lymphosarcoma tumors to determine the role of the primary amino acid sequence of protein kinase C substrates in defining the lipid (phosphatidyl serine and diacylglycerol) requirements for the activation of the enzyme. Removal of the basic residues lysine and arginine from the amino terminus of MLC(3-13) did not have a significant effect on the Ka value of diacylglycerol. The binding of effector to calcium-protein kinase C appears to be random since binding of one effector did not block the binding of the other.
Date:
August 1992
Creator:
Abukhalaf, Imad Kazem
System:
The UNT Digital Library
Studies on the Mechanism of Protection by Carotenoids Against Photodynamic Killing in Curtobacterium Flaccumfaciens Pathover Poinsettiae
The mechanism of protection by carotenoids against photodynamic killing in Curtobacterium flaccumfaciens pathover poinsettiae (C. poinsettiae) was studied using pigment mutants isolated by treatment with nitrosoguanidine and DNA gyrase inhibitors. Growth rates, pigment composition, pigment levels and the ultrastructure of the wild-type streptomycin resistant strain of G. poinsettiae (wt-str) and all mutants were compared. One mutant, NTG-1, lacked colored carotenoids, and another, NTG-2, was a slow growing mutant containing low levels (14%) of wild-type carotenoid pigments. Except for NTG-1, the other pigment mutants had different proportions of the same pigments found in the wild type as determined by high performance liquid chromatography (HPLC). Only NTG-2 was morphologically distinct at the ultrastructural level.
Date:
August 1992
Creator:
Abusada, Gabi M. (Gabi Michael)
System:
The UNT Digital Library
Healing of lithographically introduced flaws in glass and glass containing ceramics
The morphological evolution of cylindrical pores or ``channels`` and crack-like cavities in glass and glass-containing ceramics at elevated temperatures was studied. The systems studied were: Coming 7056 alkali borosilicate glass, soda-lime glass (microscope slides), a commercially available 96% Al{sub 2}O{sub 3}with {approx}5--10% intergranular glass, 96% Al{sub 2}O{sub 3} bonded to sapphire, and a model sapphire/glass/sapphire system fabricated by diffusion bonding etched and unetched pieces of sapphire onto which 30--50 nm of SiO{sub 2} had been sputter deposited. These systems span a broad range of glass contents, and permit observation of healing behavior with varying glass content. The results were compared with analytical models and results of similar studies in completely crystalline systems.
Date:
December 1, 1992
Creator:
Ackler, H. D.
System:
The UNT Digital Library
An Ethnographic Study of Outstanding, Veteran Elementary Teachers
The purpose of this study was to describe outstanding, veteran elementary teachers using an ethnographic approach. This qualitative study was conducted in a suburban independent school district in northeast Texas serving approximately 17,000 students. The data collected focused on five outstanding, veteran elementary teachers who had at least twenty years of uninterrupted teaching service. Data were collected through interviews, classroom observations, and the administration of the Mind Styles (Gregorc,1982) inventory. The findings of this research were as follows. This study found that many factors were responsible for retaining outstanding, veteran elementary teachers in the work force. These included adequate preparation, a strong personal commitment, a successful initial teaching assignment, a development of skills and abilities inside and outside the teaching field, and professional accomplishments throughout the teaching career.
Date:
August 1992
Creator:
Adams, Sandra K. (Sandra Kay)
System:
The UNT Digital Library
T. S. Eliot's Ash Wednesday: a Philosophical Approach to Empowering the Feminine
In his 1916 dissertation, Eliot asserted that individuals were locked into finite centers and that all knowledge was epistemologically relative, but he also believed that finite centers could be transcended through language. In the essay "Lancelot Andrewes,'" Eliot identified Andrewes's "relevant intensity," a method very close to nonsensical verse. Eliot used Andrewes's Word and the impersonality of nonsense verse in Ash Wednesday. The Word, God's logos, embodied the Virgin Mary as its source, and allowed Eliot to transcend the finite center through language. Ultimately, Eliot philosophically empowered the feminine as the source of the Word. Though failing to fully empower the earthly Lady in part II of Ash Wednesday, Eliot did present a philosophical plan for transcending the finite center through language.
Date:
August 1992
Creator:
Adams, Stephen D. (Stephen Duane)
System:
The UNT Digital Library
Identification of College Freshmen According to Scholastic and Persistence Potential
This study was designed to develop a procedure for the identification of freshman students at risk in the academic and social integration process at Texas Christian University. The data for the study were collected from the Student Information Form (SIF) and student records system at Texas Christian University. The data included demographic, attitudinal, educational background and one-year persistence indicators (retain and drop) as well as one-year cumulative grade point averages for the fall 1990 entering freshman class.
Date:
December 1992
Creator:
Adams, William F. (William Franklin)
System:
The UNT Digital Library
Strategic Planning in Higher Education : A Study of Application in Arkansas Senior Colleges and Universities
This empirical study focused on the level of application of strategic planning by senior colleges and universities in Arkansas. The study was designed to examine, analyze, and describe the extent of strategic planning practices by Arkansas higher education institutions, as reflected in the opinions and perceptions of the institutions' chief executive officers and based on the profile of characteristics validated by twenty experts in the strategic planning literature.
Date:
August 1992
Creator:
Agwu, Patrick A. (Patrick Agbai)
System:
The UNT Digital Library
A kinetic study of methanol synthesis in a slurry reactor using a CuO/ZnO/Al{sub 2}O{sub 3} catalyst
A kinetic model that describes the methanol production rate over a CuO/ZnO/AI{sub 2}0{sub 3} catalyst (United Catalyst L-951) at typical industrial operating conditions is developed using a slurry reactor. Different experiments are conducted in which the H{sub 2}/(CO+CO{sub 2}) ratio is equal to 2, 1, and 0.5, respectively, while the CO/CO{sub 2} ratio is held constant at 9. At each H{sub 2}/(CO+CO{sub 2}) ratio the space velocity is set at four different values in the range of 3000-13,000 1/hr kg{sub cat}. The effect of H{sub 2}/(CO+CO{sub 2}) ratio and space velocity on methanol production rate, conversions, and product composition is further investigated. The results indicate that the highest methanol production rate can be achieved at H{sub 2}/(CO+CO{sub 2}) ratio of 1 followed by H{sub 2}/(CO+CO{sub 2}) ratio of 0.5 and 2 respectively. The hydrogen and carbon monoxide conversions decrease with increasing space velocity for all H{sub 2}/(CO+CO{sub 2}) ratios tested. Carbon monoxide hydrogenation appears to be the main route to methanol at H{sub 2}/(CO+CO{sub 2}) ratio of 0.5 and 2. On the other hand, carbon dioxide hydrogenation appears to be the main route to methanol at H{sub 2}/(CO+CO{sub 2}) ratio of 1. At all H{sub 2}/(CO+CO{sub 2}) ratios, the extent …
Date:
May 1, 1992
Creator:
Al-Adwani, H. A.
System:
The UNT Digital Library
The Impact of the Ceiling Test Write-off on the Security Returns of Full Cost Oil and Gas Firms
This study examined the impact of the ceiling test write-off on the stock prices of affected full cost (FC) oil and gas firms.
Date:
May 1992
Creator:
AlDiab, Taisier F. (Taisier Fares)
System:
The UNT Digital Library
A Study of the Business Communication Needs and Problems of Women in Entry-Level, Middle, and Upper Management Positions in Texas
The purpose of this study was to determine the business communication needs and problems of women in entry-level, middle, and upper management positions in Texas. A questionnaire was completed by sixty-eight female managers (twenty-one entry-level; forty middle; and seven upper). Female managers were asked to indicate the frequency of use and the importance of fourteen types of written and seven types of oral business communication, the importance of twenty-seven skills or knowledge, and the frequency with which they consider thirty-two skills or knowledge as problem areas. Data were also collected for the same number of male managers and were used to further interpret and complement the data on female managers. Results for female managers as a total group and male managers as a total group were evaluated by performing chi-square tests.
Date:
August 1992
Creator:
Alexander, Carol Jennings
System:
The UNT Digital Library
Alcoholism and the Family: The Destructive Forces in Hardy's Tess of the D'urbervilles
This study examines the forces which shaped the main character--Tess Durbeyfield--in Hardy's novel in terms of the effects which her alcoholic family had upon her mental and emotional potential and which ultimately become the determining factors in her self-destruction. Using the elements and patterns set forth in the literature regarding the dynamics of the alcoholic family, I attempt to show that Hardy's novel may best be understood as the story of a woman whose life and destiny are controlled by the consequences of her father's alcoholism. This interpretation seems to account best for many elements of the novel, such as Tess's destruction, and provides a rich appreciation of Hardy's technique and vision.
Date:
December 1992
Creator:
Alexander, Elizabeth Chenoweth
System:
The UNT Digital Library
The Rise and Fall of Military Regimes in the Sudan, 1956-1989
This study attempts to explore the factors that contributed to the rise and fall of military regimes in the Sudan from independence in 1956 to 1989. Further, the study tries to identify the factors that led to the collapse of either or both civilian and military regimes. Most of the studies on military politics have focused their research on either military coups or, more recently, on military withdrawal from politics. This work tries to synthesize the study of military coups and military withdrawal from politics into a single theoretical framework.
Date:
December 1992
Creator:
Ali Ahmed, Hassan Elhag
System:
The UNT Digital Library
Interpersonal Perception and Communication within Marital Dyads
The present study examined the relationships among similarity, interpersonal perception and communicative behaviors in marriage. It was hypothesized that greater understanding, feelings of being understood, and realization of understanding would be associated with greater self-disclosure, use of more direct person control strategies, and use of less attention control strategies. It was further hypothesized that measuring feelings of being understood and realization of understanding, in addition to measuring understanding, would improve prediction of behavior. Finally, it was hypothesized that the contextual measure of understanding would better predict self-disclosure and interpersonal control than would global measures of understanding.
Date:
December 1992
Creator:
Allen, Bruce W. (Bruce Wayne), 1958-
System:
The UNT Digital Library
Evaluation of Diet, Water, and Culture Size for Ceriodaphnia Dubia Laboratory Culturing
Six reagent waters, eleven diets, and two culture sizes were evaluated for culturing C. dubia. Different filtration techniques were used to prepare the reagent waters. The eleven diets were comprised of two algae augmented with eight supplements. Reproduction and growth were assessed to discern differences among C. dubia raised in mass cultures and cultured in individual cups, during which, bacterial population densities, lipid, protein, and carbohydrate concentrations of the diets were measured. Results showed that a glass-distilled, carbon filtered, deionized reagent water and a Selenastrum capricornutum- Cerophyl® diet were optimum for culturing. Mass culturing supported the highest reproduction and growth, while no correlation was found between nutritional measurements and production.
Date:
December 1992
Creator:
Allen, Jerry D. (Jerry Dee)
System:
The UNT Digital Library
A Comprehensive Review of Definitions of Adult Education
This study identified definitions of adult education appearing in three major adult education journals (Journal of Adult Education, Adult Education Journal, Adult Education) and three handbooks of adult education (1948, 1960, and 1970) over a period of 40 years, 1939 to 1979, and concluded there is no one universally accepted definition of adult education.
Date:
August 1992
Creator:
Anderson, Margaret M. (Margaret Moore)
System:
The UNT Digital Library
Correlates of Body Image in University Women
The relationship between maturation rate, body image, depression and eating disorder tendencies was explored in a group of 251 college-age females in order to better understand the developmental progression of body image and related variables. Two aspects of body image were measured, namely, level of body satisfaction and amount of body distortion. Body dissatisfaction was found to be associated with early maturation, depression, and eating disorder tendencies. Body distortion was not found to be associated with any of the primary variables. The significant relationship which was found between maturation rate and level of body satisfaction in young adult females suggests that pubertal timing may have lasting effects on the body satisfaction of women. Body satisfaction and depression were found to contribute significantly to the variance in eating disorder tendency.
Date:
August 1992
Creator:
Anderson, MerriLee
System:
The UNT Digital Library
The Relationship Between Student Evaluation of Instruction and Selected Predictors
The study attempted to determine the relationship between student evaluation of instruction and institutional performance ratings with the following predictors: faculty job satisfaction, faculty attitudes toward the evaluation process, faculty attitudes toward factors associated with the evaluation process, and faculty characteristics.
Date:
December 1992
Creator:
Anderson, S. Eric (Steven Eric)
System:
The UNT Digital Library
Comparative plant uptake and microbial degradation of trichloroethylene in the rhizospheres of five plant species-- implications for bioremediation of contaminated surface soils
The objective of this study was to collect data that would provide a foundation for the concept of using vegetation to enhance in situ bioremediation of contaminated surface soils. Soil and vegetation (Lespedeza cuneata, Paspalum notatum, Pinus taeda, and Solidago sp.) samples from the Miscellaneous Chemicals Basin (MCB) at the Savannah River Site were used in tests to identify critical plant and microbiological variables affecting the fate of trichloroethylene (TCE) in the root zone. Microbiological assays including phospholipid acid analyses, and {sup 14}C-acetate incorporation were conducted to elucidate differences in rhizosphere and nonvegetated soil microbial communities from the MCB. The microbial activity, biomass, and degradation of TCE in rhizosphere soils were significantly greater than corresponding nonvegetated soils. Vegetation had a positive effect on microbial degradation of {sup 14}C-TCE in whole-plant experiments. Soils from the MCB containing Lespedeza cuneata, Pinus taeda, and Glycine max mineralized greater than 25% of the {sup 14}C- TCE added compared with less than 20% in nonvegetated soils. Collectively, these results provide evidence for the positive role of vegetation in enhancing biodegradation.
Date:
January 1, 1992
Creator:
Anderson, T. A. & Walton, B. T.
System:
The UNT Digital Library
Aortic Baroreceptor Reflex Control of Blood Pressure: Effect of Fitness
Aortic baroreflex (ABR) control of blood pressure was examined in 7 untrained (UT) and 8 endurance exercise trained (EET) young men. ABR control of blood pressure was determined during a steady state phenylephrine infusion to increase mean arterial pressure 10-15 mmHg, combined with positive neck pressure to counteract the increased carotid sinus transmural pressure, and low levels of lower body negative pressure to counteract the increased central venous pressure. Functioning alone, the ABR was functionally adequate to control blood pressure. However, ABR control of HR was significantly diminished in the EET subjects due solely to the decrease in the ABR sensitivity. The persistent strain from an increased stroke volume resulting from endurance exercise training could be the responsible mechanism.
Date:
May 1992
Creator:
Andresen, Jean M.
System:
The UNT Digital Library
A Klein-Gordon acoustic theory
Geophysicists do not associate traveltime variation with density variation in acoustic or elastic wavefield interpretation. Rather, given a constant index of refraction, density variation within the medium of propagation is associated only with amplitudes. This point of view prevails because density does not occur as a variable in classical results such as Snell`s Law or the eikonal equation. Nevertheless, in this paper I predict, analytically, a continuum of density effects on acoustic wavefields-including a dispersive traveltime delay when density variation is rapid. I also examine the ability of a common imaging algorithm to cope with this time delay.
Date:
December 1992
Creator:
Anno, P. D.
System:
The UNT Digital Library
Progressivism/Prohibition and War: Texas, 1914-1918
This thesis focuses upon the impact of war upon the progressive movement in Texas during 1914-1918. Chapter I defines progressivism in Texas and presents an overview of the political situation in the state as relating to the period. Chapter II discusses the negative impact that the first two years of World War I had upon the reform movement. Chapter III examines the revival of the Anti-Saloon League and the 1916 Democratic state convention. Chapter IV covers the war between James E. Ferguson and the University of Texas. Chapter V tells how the European war became a catalyst for the reform movement in Texas following America's entry, and its subsequent influence upon the election of 1918. Chapter VI concludes that James E. Ferguson's war with the University of Texas as well as World War I were responsible for the prohibitionist victory in the election of 1918.
Date:
August 1992
Creator:
Antle, Michael Lee
System:
The UNT Digital Library