UNT Theses and Dissertations - 18,439 Matching Results

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A study of evaluator consistency/stability in the appraisal of teacher performance

Description: This study considered the appraisal patterns of 29 teacher appraisers from a single high school district over a two year period. It discussed the district's efforts to assist its appraisers in evaluating teachers, and compared the frequency and range of the exceptional quality scores and overall performance scores assigned to teachers evaluated.
Date: December 1990
Creator: Fuller, C. Ellen Stricklin (Cheryl Ellen Stricklin)
Partner: UNT Libraries

Development and termination of Bishop College between 1960 and 1988

Description: The purposes of this study were (a) to determine the significant events leading to the relocation of Bishop College, (b) to describe the programs offered at the college, (c) to identify a president and describe his impact on policy and programs in the college, (d) to describe the student population that attended the college during the period studied, and (e) to identify the causes and subsequent events which led to the closing of the college.
Date: December 1990
Creator: Egar, Emmanuel Edame
Partner: UNT Libraries

Performance study of concurrent search trees and hash algorithms on multiprocessor systems

Description: This study examines the performance of concurrent algorithms for B-trees and linear hashing. B-trees are widely used as an access method for large, single key, database files, stored in lexicographic order on secondary storage devices. Linear hashing is a fast and reliable hash algorithm, suitable for accessing records stored unordered in buckets.
Date: May 1996
Creator: Demuynck, Marie-Anne
Partner: UNT Libraries

The effect of interactive multimedia on the critical writings of art history survey students

Description: The purpose of this study was to investigate the effectiveness of supplemental study resources for art history survey students, specifically an interactive multimedia (IM) computer program designed to help students acquire and retain a deeper understanding of works of art.
Date: May 1996
Creator: Cason, Nancy F. (Nancy Foster)
Partner: UNT Libraries

A comparative analysis of the values that are predominant in private schools, public choice schools, and public attendance-zone schools in San Antonio, Texas

Description: The purpose of this study was to investigate whether or not differences exist in the values fostered in private schools, public choice schools and public attendance-zone schools and whether or not there are differences in the values that are identified by students as compared with teachers.
Date: August 1996
Creator: Ausbrooks, Carrie Yvonne Barron
Partner: UNT Libraries

A study of the contributions of Major Albert Sobey to American industrial cooperative education

Description: This study concerns the contributions of Major Albert Sobey and his educational leadership during the development of the engineering cooperative education program that became the foundation for the General Motors Institute in Flint, Michigan. This study also examines Albert Sobey's contributions to the emergence of industrial cooperative education in America over the past seventy years.
Date: May 1990
Creator: Altland, John T. (John Thomas)
Partner: UNT Libraries

An examination of musical-textual relationships in the choral music of Colin Brumby: a lecture recital, with three recitals of selected works by Bartók, Duruflé-Chevalier, Duson, Mendelssohn, Poulenc, Sallinen, and Schoenberg

Description: The purpose of this study is to investigate the choral works of Colin Brumby, with a special focus on the musical-textual relationships of selected works from his body of choral compositions, which number more than one hundred and twenty. This investigation includes information gathered in Australia at the University of Sydney, the University of Queensland, and the Australian Music Centre, as well as information furnished in a personal interview with the composer in Brisbane, Australia, in June 1994, in addition to an August 1994 telephone interview cnducted with Thomas Shapcott, the Australian poet with whom Brumby collaberated on over twenty choral compositions.
Date: May 1995
Creator: Jutsum, Ross F. (Ross Frederick)
Partner: UNT Libraries

The evolutionary development of compositional technique and style in the piano sonatas of George Walker: a study of Sonata no. 4 and analytical comparison of the four sonatas, together with three recitals of selected works of F.J. Haydn, L.v. Beethoven, F. Schubert, F. Chopin, F. Liszt, J. Brahms, C Debussy, Z. Kodály and F. Poulenc

Description: George Walker, pianist, composer and pedagogue, composed piano sonatas in 1953, 1957, 1975, and 1984. The Sonata No. 4 demonstrates the composer's continued fascination with a relaxation of traditional forms, coloristic effects of persistent interval combinations, incorporation of folk elements into his thematic material, and harmonic and rhythmic underpinnings as structural bases to his work.
Date: August 1995
Creator: Boe, Dennis Leonard
Partner: UNT Libraries

Mechanism of activation by autophosphorylation of an S6/H4 kinase isolated from human placenta

Description: A novel molecular mechanism of autophosphorylation-dependent activation of the ser/thr S6/H4 kinase isolated from human placenta is described. Phosphopeptide mapping of the enzyme was used to determine the rate and extent of site-specific autophosphorylation.
Date: December 1994
Creator: Benner, Gretchen E. (Gretchen Evonne)
Partner: UNT Libraries

Adult day services: state regulatory and reimbursement structure

Description: As the need for community care increases, complete and up-to-date information about organizational structure is crucial to making appropriate decisions about the expansion of adult day services. The absence of uniform national policies results in states and communities being relegated to balancing limited funds with the demand for adult day services, and in many areas, the lack of adult day care centers altogether. This study provides an overview of the types of state reimbursement, the availability of different funding sources, and the utilization of the sources in various states.
Date: May 1996
Creator: Weaver, Jan W. (Jan Wilkerson)
Partner: UNT Libraries

An investigation of the value of color in hard copy output

Description: The objectives of this research were to: (1) augment existing research regarding the impact of information retention resulting from the application of redundant color codes; and (2) determine whether the application of color in hard-copy documents has a positive influence in business reports by non-color deficient subjects.
Date: May 1996
Creator: Jensen, Bradley K. (Bradley Kevin)
Partner: UNT Libraries

Phytoestrogens in two dioecious species: isolation, characterization and role in plant reproduction

Description: A highly specific steroid regulated transcription system system in Saccharomyces cerevisae was used to screen for phytoestrogens indioecious plants. Yeast cells were co-transformed with a human estrogen receptor expression plasmid and a reporter plasmid containing the E. coli β-galactosidase gene.
Date: May 1996
Creator: Maier, Camelia G. A. (Camelia Gabriela-Anca)
Partner: UNT Libraries

A study of institutional advancement in selected Southern Baptist colleges and universities

Description: The purpose of this study was to determine what institutional advancement processes are currently operating in a sample of Southern Baptist 4-colleges and universities ("what is") and how these processes with Wesley K. Willmer's model of an effective small college institutional advancement program ("what ought to be").
Date: May 1996
Creator: Melton, Douglas Owen
Partner: UNT Libraries

Genomic imprinting: support for the concept from a study of Prader-Willi Syndrome patients

Description: In this study, nineteen cases of suspected or clinically diagnosed Prader-Willi Syndrome (PWS) were tested for molecular deletions by in situ hybridization with two DNA probes, IR4-3R and GABRB3. Both probes are specific for sequences within the chromosome region 15q11-13, with IR4-3R located within the putative PWS region and GABRB3 in the distal area associated with Angelman Syndrome.
Date: December 1994
Creator: Robinett, Sheldon J. (Sheldon Jay)
Partner: UNT Libraries

Moment variations: for orchestra and choir

Description: Moment Variations is a three-movement composition for chamber orchestra and chamber choir of approximately 21 minutes duration. The basis of this piece is compositional unity through variations technique, where the retained element of the theme is its structure or fixed-structure variations.The fixed-structure is a succession of six musical events, called moments, in the order: I II III II IV V III V VI, where moments II, III, and V are internally repeated and I, IV, and VI occur only once.
Date: May 1993
Creator: Theis, Charles W.
Partner: UNT Libraries

Neurotransmitter receptors in the suprachiasmatic nucleus: circadian and developmental studies

Description: The present audiographic study examined ligands for three receptors, chosen on the basis of high abundance of these receptors in the SCN relative to other brain regions([125I)VIP and [125I) angiotensin II) or the ability of pharmacological manipulations to affect the phase and period of circadian rhythms.
Date: December 1993
Creator: Robinson, Miqun L. (Miqun Li)
Partner: UNT Libraries

Biodegradation of Certain Petroleum Product Contaminants in Soil and Water By Selected Bacteria

Description: Soil contamination by gasoline underground storage tanks is a critical environmental problem. The results herein show that in situ bioremediation using indigenous soil microorganisms is the method of choice. Five sites were selected for bioremediation based on the levels of benzene, toluene, ethylbenzene and xylene and the amount of total petroleum hydrocarbons in the soil. Bacteria capable of degrading these contaminants were selected from the contaminated sites and grown in 1,200 I mass cultures. These were added to the soil together with nutrients, water and air via PVC pipes.
Date: December 1995
Creator: Nevárez-Moorillón, Guadalupe Virginia
Partner: UNT Libraries

The refusal problem and nonresponse in on-line organizational surveys

Description: This research study examines the use of one form of computer-assisted data collection, the electronic or online survey, as an organizational research tool. The study utilized historical response data and administered an online survey to individuals known to be cooperative or uncooperative in other online surveys. It investigated nonresponse bias and and response effects of typical responders, periodic participants, and typical refusers within a sample of corporate employees in a computer-interactive interviewing environment utilizing online surveys.
Date: December 1995
Creator: Green, Tonya Merlene
Partner: UNT Libraries

Brain topography of leadership: neurophysiological correlates of the leadership opinion questionnaire

Description: Laboratory research was performed to understand leadership by attempting to link EEG baseline frequency patterns with data from the Leadership Opinion Questionnaire (LOQ) assessment survey. Research began with 293 right-handed males, 18-26 years old, who completed the LOQ. Based on their scores, 61 subjects grouped by the Ohio State Leadership Quadrants, were tested using brain-mapping technology.
Date: December 1995
Creator: Dukes, David Jefferson
Partner: UNT Libraries

Studies of the status of antioxidant enzymes and metabolites following burn injury, and the presence of antioxidant enzymes in the Aloe vera plant

Description: The effects of skin burn injury on the levels of oxidized and reduced glutthione, malondialdehyde, and on the activities of glutathione peroxidase, glutathione S-transferase, and glutathione reductase were determined in liver and lung of rabbit models, 24-h post-burn.
Date: December 1995
Creator: Sabeh, Farideh
Partner: UNT Libraries

Synthesis of 2-D images from the Wigner distribution with applications to mammography and edge extraction

Description: A new method for the general application of quadratic spatial/spatial frequency domain filtering to imagery is presented in this dissertation. The major contribution of this research is the development of an original algorithm for approximating the inverse psuedo Wigner distribution through synthesis of an image in the spatial domain which approximates the result of filtering an original image in the DPWD domain.
Date: December 1995
Creator: Pettit, Elaine J. (Elaine Joyce)
Partner: UNT Libraries

Pyrimidine nucleotide metabolism in Rhizobium meliloti: purification of aspartate transcarbamoylase from a pyrimidine auxotroph

Description: Rhizobium aspartate transcarbamoylase (ATCase; EC 2.1.3.2) was previously believed to be similar to the Pseudomonas ATCase which has been studied extensively. To facilitate the study of the Rhizobium ATCase a pyrimidine-requiring mutant of R. meliloti was isolated and used in the purification of the enzyme.
Date: December 1990
Creator: Eguae, Samuel Iyamu
Partner: UNT Libraries