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UNT Theses and Dissertations
237
Texas Digital Newspaper Program
179
Texas Jewish Post
53
Howe Area Newspaper Collection
52
Rescuing Texas History, 2017
52
Texas Catholic Newspaper Collection
50
Texas Gulf Coast Register/South Texas Catholic
50
Texas Borderlands Newspaper Collection
15
UNT Graduate Student Works
13
Journal of Near-Death Studies
12
8 More
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Microbiological Studies of Biological Activated Carbon Filters Used in Water Treatment
A collaborative pilot study of the microflora on biological activated charcoal (BAC) filters employed in the tertiary treatment of drinking water revealed the principle bacterial genera to be Pseudomonas, Alcaligenes, Achromobacter, Bacillus, Micrococcus, Corynebacterium, Chromobacterium, Microcyclus and Paracoccus. The microbial population of the filters paralleled seasonal carbon dioxide production. Of particular interest were the effects of the BAC miroorganisms upon precursors of trihalomethanes (THMs). Mixed populations of BAC microorganisms were cultivated for 50 days in a mineral salts-humic acid medium. It was concluded that (1) the BAC microflora enhances the absorptive capacity of the filters; (2) chemico-physical and biological processes operate in concert to lower the concentration of precursors of THMs; and (3) few bacterial pathogens establish themselves on the filters.
Date:
December 1981
Creator:
Chang, Eichin
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Study of Sun Yat-sen's Propaganda Activities and Techniques in the United States During China's Revolutionary Period (1894-1911)
Sun Yat-sen used six propaganda techniques in the United States to help overthrow the Ching Dynasty in 1911: (a) individual propaganda to gain supporters through personal contact and individual persuasion; (b) propaganda of deed to solicit donations and to mobilize his supporters for military actions; (c) travel propaganda to broaden the base of revolutionary support; (d) newspaper propaganda to publicize and explain his revolutionary program; (e) debate propaganda to refute antirevolutionary criticism through speeches and pamphlets; and (f) missionary propaganda to seek sympathy and support from American missionaries and Christians.
Date:
December 1981
Creator:
Chao, Nang-yung
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Grandy's Training: Production of Five Films
Grandy's Country Cookin' Inc. is a chain of restaurants specializing in fried chicken dinners. standardized instructional films were needed to teach employees Grandy's operational procedures. The producer was commissioned to make five films to provide visual job descriptions for new employees and managers. These fast-paced films depict actual job situations: "Chicken Cutting," "Breakfast Preparation," "Customer Relations," "System of Operation," and "Drive-Thru Relations," "System of Operation," and "Drive-Thru Service." An accompanying production book describes the making of Grandy's Training. The book examines the background against which the project was proposed, details the problems and procedures of production, and describes the experience of dealing with a client at a professional level.
Date:
December 1981
Creator:
Chiles, Andrew John
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Isolation, Physical and Chemical Characterization of Lecithin:Cholesterol Acyltransferase from Human Plasma
The physiological role of LCAT has been the subject of a number of recent articles (Glomset, 1979; Nilsson-Ehle et al., 1980). According to most current theories, the enzyme functions in combination with high-density lipoproteins in the reverse cholesterol transport pathway which presumably returns peripheral cholesterol to the liver where cholesterol catabolism takes place. Despite the exciting potential for studies on the catalytic function and the nature of the enzyme-substrate complex, the mechanism of action of LCAT remains largely unexplored. The relatively slow progress in the elucidation of the LCAT reaction mechanism is likely to be due to the difficulties in the isolation of the enzyme in sufficient quantities. Consequently, considerably less is known about the physical and chemical properties of the enzyme. Therefore, the first objective of this investigation was to isolate and purify sufficient amount of enzyme for subsequent characterization studies. The second objective of this investigation was to characterize the physical properties of the enzyme by techniques including analytical ultracentrifugation, ultraviolet spectroscopy, and circular dichroism and fluorescence spectroscopy. The third objective of this investigation was to characterize the chemical properties of the enzyme which deals with the amino acid and carbohydrate composition and with some basic structural features …
Date:
December 1981
Creator:
Chong, Kui Song
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Analysis of a Selected Strategy for the Mitigation of Stereotypic Sex Role Attitudes Among Teacher Education Students
The problem of this study was an analysis of the effects of a selected strategy for bringing about changes in stereotypic sex role attitudes of teacher trainees during their teacher education program. The major purposes of this investigation were to (1) develop a preservice treatment program, characterized by the persuasive communication approach, to modify students' stereotypic sex role attitudes, (2) determine the effectiveness of the strategy in modifying students' attitudes, and (3) examine student factors that influence reception and yielding to a persuasive message.
Date:
May 1981
Creator:
Christensen, Eric W.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Picosecond Spectroscopy of Rhodamine B
A series of picosecond excite-probe experiments was performed on various concentrations of aqueous and ethanolic solutions of rhodamine B in order to determine the existence of dimerization in those solutions. The goals of the research presented in this dissertation were twofold. Initially, various techniques of time-resolved spectroscopy were to be employed to further characterize the ground and excited-state molecular properties of the aqueous RB dimer. The information obtained, and the techniques developed in that study would then be utilized in an effort to secure evidence which would support or refute the claims of rhodamine B dimerization in an ethanolic solution.
Date:
December 1981
Creator:
Clark, James Burton
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Investigation of Music Teacher Preparation in Selected United Negro College Fund Colleges and Universities
The problem of this study was to determine the perceptions of music educators at selected United Negro College Fund colleges and universities concerning the importance of music teaching competencies and courses for prospective public school music teachers, it was further designed to (a) determine if the music educators were in agreement with the published competency recommendations of the National Association of Schools of Music and the Music Educators National Conference for preparing prospective public school music teachers and (b) to discover if there were significant differences in UNCF music educators' perceptions across selected independent variables concerning the importance of those competencies and courses.
Date:
December 1981
Creator:
Claybon, Sibyl Elaine Carr
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Rheumatoid Arthritis: A Follow-Up Assessment of Physical Functioning Abilities After Treatment in a Comprehensive Environmental Control Unit
Two instruments were developed and administered to fifteen female and three male rheumatoid arthritics (mean age 44) previously hospitalized for allergy treatment by ecological methods. The Physical Functioning Ability Scale assessed functional capacity according to common daily activities, and the Rehabilitation Questionnaire surveyed adjustment problems subjects encountered after hospital discharge. ANOVA was performed on the functionality scale comparing dimensions of dependence, pain, and difficulty with categorical activities of mobility, work, and personal care, Significant F values (p(.05) were obtained for interaction and dimensions, but not for categories. Functional independence from human/mechanical assistance was particularly noted. Recommendation for future research concerns replicating this study using a control group of rheumatoid arthritics treated by traditional medical approaches.
Date:
March 1981
Creator:
Cockburn, Orbie
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Empirical Analysis of Technical Knowledge Needed by Taxpayer Service Specialists in the Areas of Partnerships, Corporations, and Subchapter S Corporations
The Taxpayer Service Division contributes to the Internal Revenue Service mission of achieving the highest possible voluntary compliance with the Federal income tax law by answering questions and helping taxpayers in their return preparation efforts. These services are provided by Taxpayer Service Representatives and Taxpayer Service Specialists (TSS's). The TSS position was established in 1975 to upgrade the quality of assistance provided. TSS duties include being able to provide assistance with problems involving complex areas of the tax law. The purpose of the study was to disclose to what extent TSS's are called on to answer tax questions related to partnerships, corporations, and Subchapter S corporations and to disclose whether they have been trained and are able to answer the inquiries.
Date:
May 1981
Creator:
Colgan, Joseph C.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Perceptions of the Louisiana State-Assessment Program by Superintendents, Principals, and Teachers
In 1976, the Louisiana Legislature passed Act 709. This act mandated accountability in education. As a result of this law, Louisiana students in grades four, eight, and eleven are given tests each year in reading, mathematics, and writing. The primary motivation for conducting this study was the wide-spread discussion about the value of the state-assessment program. There was a need to determine what the perceptions toward the Louisiana State-Assessment Program were by superintendents, principals, and teachers. Based upon a review of related literature and discussions with Louisiana educators, a questionnaire was developed with thirty-three items. These thirty-three items were grouped into six research questions that determined what the perceptions of superintendents, principals, and teachers were toward the Louisiana State-Assessment Program.
Date:
August 1981
Creator:
Cooley, Glen
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The New Classicism: Alfredo Casella's Sinfonia, Arioso and Toccata, Op. 59, a Lecture Recital, Together with Three Recitals of Selected Works of Chopin, Mozart, Bartók, Bach, Schumann, Arensky, Bruch and Others
The neo-classic movement in Italy, which gained momentum in the early 1920's, was rooted in an instrumental style patterned after that of the Baroque era. The term "new classicism," proposed by Ferruccio Busoni in 1920, represented a reaction against the extreme chromaticism and large performance forces of the late nineteenth century. The pianistcomposer Alfredo Casella, after earlier periods in which he was influenced by such diverse composers as Mahler, Debussy, and Schoenberg, soon became the chief spokesman for the neoclassic movement in Italy. Casella considered the Sinfonia, Arioso and Toccata his most important work for the piano, because of its size and musical content. It is notable for its usage of thematic transformation, much of which is based on the interval of a fourth or fifth. This study includes a formal outline of each movement, showing sectional divisions and tonal regions, as well as illustrations of thematic transformation and intervallic patterns. Also discussed are the work's neoclassic style characteristics, including counterpoint, pandiatonicism, modality, and linear cadential treatment.
Date:
May 1981
Creator:
Copeland, Nancy M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Population Dynamics of Macrobenthos in a Regulated Stream 1970-71 and 1978
Stability of the macrobenthic community in a regulated section of the Brazos River, Texas, was evaluated. Physicochemical data and information on spatial distribution of macrobenthos were collected. Populations of two invertebrate species, Isonychia sicca and Neoperla clymene, had been greatly reduced since 1970-71 and I. sicca had been practically eliminated from this section of the Brazos. Three other insect populations, Choroterpes mexicanus, Cheumatopsche campyla and Cheumatopsyche lasia, had more than doubled their numbers since the 1970-71 study. A physicochemical gradient existed in this regulated section of the Brazos but it appeared to have changed little in comparison of earlier chemical data. A gradation of the macrobenthic community was evident as distance from the dam increased,
Date:
August 1981
Creator:
Coulter, James D. (James Duard)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Solo Trombone Works of Kazimierz Serocki, A Lecture Recital, Together with Three Recitals of Selected Works by W. Hartley, P. Dubois, H. Dutilleux, H. Tomasi, G. Jacobs, L. Grondahl, J. Aubain and Others
The three recitals consisted of performances of original twentieth century solo works for trombone with the exception of two trombone quartets, Adagio, by C. Saint-Saëns, arranged by Ken Murley, and Sonata by Daniel Speer. The lecture recital establishes the position of Kazimierz Serocki (1922-1981) as a major composer not only in Poland but in the rest of the world as well. His many works cover a wide spectrum of styles and genres. The solo trombone works, in particular, are among his most often performed works from his early neoclassic period. The lecture is also an attempt to illuminate the role of neoclassicism in Poland through a brief discussion of Polish neoclassicists, Grażyna Bacewicz and Michael Spisak, and other composers before and after World War II including Constantin Regamey and Roman Haubenstock-Ramati. An analysis of the two solo trombone works, Sonatina and Concerto, shows the technique of composition used by Serocki and the demands placed upon the performer by the music. These works were among the first in a growing list of works for solo trombone composed in response to the notable lack of large scale works of quality for solo trombone during the early twentieth century. The high quality of …
Date:
December 1981
Creator:
Cox, Joseph L. (Joseph Lee)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Determination of Biotransformation and Biodegradation Rate Constants for Naphthalene, Lindane and Phenol
Biotransformation and biodegradation rate constants were determined for naphthalene, lindane, and phenol in water samples from three different sources. Rate constants produced from monitoring disappearance of the parent chemical (biotransformation) were compared to those obtained from mineralization of the chemical (ultimate biodegradation) by ¹⁴CO₂ evolution as well as acidification of the residual ¹⁴C-labeled compound (primary biodegradation). Rate constants were statistically different for the three chemicals. The water source affected the rate constants. When biomass measurements of the waters were considered and second-order rate constants were derived, there was no statistical evidence that this parameter gave a reliable rate constant statistic that could be useful in predicting the fate of any of naphthalene, lindane, and phenol in these waters.
Date:
December 1981
Creator:
Crawford, Judith Chase
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Behavioral Treatment of Essential Hypertension: A Comparison of Cognitive Behavior and Multi-Element Self-Regulation Therapies
Self-monitoring, lowered arousal training (i.e., biofeedback and relaxation training) and maintenance follow-up appeared to contribute to effective treatment of hypertension. Cognitive therapy, while effective in treatment of some stress-related disorders, has not been studied as a specific treatment component for hypertension. The present study explored the use of cognitive therapy as a treatment variable to reduce blood pressure in hypertensive persons. The effectiveness of a multi-element treatment including cognitive therapy, blood-pressure biofeedback, and relaxation training was also assessed. Self-monitoring and maintenance training were included as a part of each treatment process.
Date:
May 1981
Creator:
Cunningham, Diana Pinson
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Analysis of Factors Affecting the Creation, Implementation, and Retention or Rejection of Curriculum Change: Three Objective-Based Skills Systems in Reading
The problem with which this study dealt was an identification of the positive or negative factors affecting the creation, implementation, and retention or rejection of curriculum change efforts. As examples, the Fountain Valley, PEGASUS-PACE, and Wisconsin Design skills management systems (SMS) for reading were studied as each was an example of successful curriculum change efforts, in two different settings,
Date:
May 1981
Creator:
Cutler, K. Don (Kenny Don), 1945-
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Determination of Uptake and Depuration Rate Kinetics and Bioconcentration Factor of Naphthalene and Lindane in Bluegill Sunfish, Lepomis macrochirus
Bluegill were exposed to 3 and 30 pg/L lindane and 20 and 200 pg/L naphthalene to determine uptake rate constants, K1 depuration rate constants, K2, and bioconcentration factors, BCF. Correlations were determined between lipid normalized and non-lipid normalized BCFs, and between observed Kl, K2 and BCFs and predicted values. The K1 values for both chemicals and concentrations were similar. The K2 values were different (1.04 day~1, 0.46 day 1). Naphthalene was more rapid. BCFs for lindane (315) and naphthalene (98) were different. Lipid normalized BCFs for naphthalene were more variable than non-lipid normalized BCFs. The reverse was observed for lindane BCFs. Predicted K1, K2 , and BCFs were in agreement with observed values.
Date:
August 1981
Creator:
DeFoer, Marguerite J.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Relationship Between a Program of Career Education and the Career Maturity of Eighth-Grade Students
The purpose of this study was to determine the relationship between career education and the career maturity of eighth-grade students as measured by the Attitude Scale and the Competence Test of the Career Maturity Inventory. A posttest only experimental design was used for the study. The subjects were selected from a population of eighth-grade students in a suburban school district in north central Texas and randomly assigned to treatment and control groups. The treatment group had a career education class for forty-five minutes each day for eighteen weeks. The control group selected an additional elective. Multiple t tests were used to test the hypotheses of the study. The hypotheses were grouped into the areas of maturity of career attitudes, maturity of career competencies, sex and career maturity, school and career maturity, and teacher and career maturity.
Date:
August 1981
Creator:
Dean, Doyle W. (Doyle Wayne)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of Powdery Mildew Erysiphe Graminis f. sp. Tritici on Yields of Wheat; Breeding for Resistance
Powdery mildew of wheat, Erysiphe graminis f. sp. tritici attacks wheat during periods of rapid growth, high levels of nitrogen fertilizer, high humidities, and cool temperatures. Yield losses due to mildew are caused by reduction in photosynthesis, increase in respiration and transpiration, impairment of heading and grain filling, and loss of plant vigor and growth.
Date:
May 1981
Creator:
Dean, Lealand D.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Isolation and Characterization of Triosephosphate Isomerase Isozymes from Human Placenta
Two isozymes of triosephosphate isomerase have been isolated to homogeneity from human placenta. Triosephosphate isomerase A and triosephosphate isomerase B were compared in terms of their chemical, and biological properties.
Date:
August 1981
Creator:
Dewan, Rahul Nath
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Lizard Tail Autotomy: Some Aspects of its Ecology and Energetics
Autotomy (self-induced loss) of body parts has evolved independently as a predator defense mechanism in several major animal phyla. The mechanism among vertebrates, including 13 of the 20 recognized lizard families, is tail autotomy. Its occurrence among the majority of lizard families offers an excellent opportunity to examine the effects of a major selective force on the ecology and evolution of a group of organisms. The research of this study was designed to examine experimentally (i) the function of tail autotomy, (ii) the function of autotomized tail movement, (iii) the energetics of autotomized tail movement, and (iv) the energetic costs of autotomy of an energy-rich tail to reproduction.
Date:
December 1981
Creator:
Dial, Benjamin Edward
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Skin Pigmentation Influencing Perception of Mexican-Americans
Subjects were 101 Mexican-American adults (53 females, 48 males), age range 17-72, and most often were in the blue-collar job level. Instructions were that (a) 18 pairs of slides would be shown; (b) each slide would be projected for 15 seconds; (c) each of the two models was to be judged on intelligence, attractiveness, friendliness, happiness, and success; and (d) the rating scale would be marked corresponding to the left or right slide. Results indicated the lighter-skinned models were judged more favorably than the darker ones on all five dimensions. To the extent this study sheds light on an important cultural value, it is hoped the treatment of Mexican-Americans in therapy will be facilitated and improved.
Date:
May 1981
Creator:
Diaz, Petra Alvarez
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Theory of Tragedy
This study defines and applies a theory of tragedy which is based on the work of Friedrich Nietzsche in The Birth of Tragedy. In the first chapter the writer argues for the need of a widely accepted theory of tragedy and show that we do not presently have one. In the same chapter, the writer presents the theory that tragedy is a very specific art type which transcends genre and which is the product of a synthesis of the Dionysiac and Apollonian forces in Western culture. The writer argues that by understanding the philosophical and aesthetic nature of the forces as they are expressed in tragedy we can isolate and define the essential elements of tragedy. Tragedy must have a person of heroic stature as its main protagonist. It must have a specific kind of plot in which a reversal of the hero's experience of the universe occurs. It must have a choric element, which is a combination of two components: communality and lyricism. Finally, tragedy must contain a mythic background which allows for the expression of two themes, the Dionysiac theme and the Apollonian theme.
Date:
May 1981
Creator:
Dodson, Diane Martha
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Meeting the Requirements of Substantive and Procedural Criteria in Discharge Cases
Legislation, arbitral and judicial decisions, and public opinion provide evidence of increasing concern for protecting employees from unfair dismissal in both union and nonunion firms. Management's right to discharge is being questioned today more than at any other time in the history of labor-management relations. Thus, organizations must stay abreast of the developments that affect their right to discharge employees. This study investigates arbitration awards and judicial decisions in discharge cases to provide answers to these questions. Are companies aware of the types of misconduct for which discharge is considered appropriate? Are companies aware of what constitutes the burden of proof requirements in discharge cases? Does management know and follow the proper procedures in handling discharge cases? The purposes of the study are 1. To determine the extent to which discharges were overturned or modified because the company did not meet the burden of proving a reasonable cause for discharge; 2. To determine the extent to which discharges were overturned or modified because the company did not follow proper dismissal procedures; 3. To develop a model set of guidelines to assist companies in the proper handling of discharge cases. These guidelines present criteria for meeting the just cause and procedural …
Date:
August 1981
Creator:
Dollar, Alta L. (Alta Lewis)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library