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Conformational Analogs of Some Phytoactive Compounds

Description: In an effort to determine if there is a specific conformational structure which is most effective at the appropriate active physiological site, the synthesis of a group of sterically restricted analogs was undertaken. A portion of the polymethylene carbon skeleton of glutaric acid was replaced by selected aromatic carbons in benzenedicarboxylic acids to produce a series of ridged conformers, and the relative plant growth regulating properties of these derivatives were determined.
Date: August 1973
Creator: Skelton, Wm. Paul
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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A Study of the Physical Facilities of Industrial Arts Metalworking Laboratories in the State of Texas

Description: The purposes for conducting this study were to ascertain whether the housing for industrial arts metalworking laboratories was adequate, whether the enrollment of the school showed any correlation with the availability of a metalworking facility, and to what extent the physical facility for metalworking laboratories met current standards.
Date: December 1972
Creator: Teague, Ben W.
Item Type: Refine your search to only Thesis or Dissertation
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The Effects of Color Concentrate in Polyolefins.

Description: Throughout history consumer products were generally manufactured from wood and metal. They either had to hold their natural color or become subject to painting. When plastics entered the industry, it was recognized for its ease of shaping, re-usability, physical properties and its low cost. One of plastics' greatest benefits is its ability to hold a given color from within allowing it to avoid use of paint. This paper will give a brief overview on the effects of pigments when incorporated in a … more
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Date: December 2001
Creator: Flora, Paul
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Techniques Utilized in the Characterization of Existing Materials for Improved Material Development

Description: It has become increasingly important to remain on the cutting edge of technology for a company to remain competitive and survive in today's high-tech industries. To do this, a company needs various resources dedicated to this cause. One of these resources is the use of existing materials, as starting points, for which improved materials can be based. For this, a company must rely on the characterization of existing materials to bring that base technology into their company. Through this evaluat… more
Date: December 2001
Creator: Withaeger, Gary
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Factors Affecting Post-Divorce Child Adjustment and the Impact of Family Financial Status

Description: Data from the National Survey of Households and Families were used to study the factors previous research identified as affecting post-divorce child adjustment. Responses from 358 divorced parents with custody of children under age 12 were analyzed. Special attention was paid to the effect of family financial status. The strongest predictor of problem behavior for both preschool children and school-aged boys was the amount of parent/child activity time. Older boys were also particularly sensiti… more
Date: May 1994
Creator: McGurk, Deborah W. (Deborah Williams)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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The Response of Elderly People to a B-6 Supplement

Description: Vitamin B-6 status was examined in a group of 46 elderly subjects who were selected from nursing home residents, hospital patients, and free living individuals in Denton County. Subjects were limited to men and women over 60 years of age. Erythrocyte aspartate aminotransferase stimulation with pyridoxal phosphate (in-vitro) was studied as the biochemical criterion of vitamin B-6 status. The pyridoxine status of these 46 subjects (the reference group) was measured in order to be able to identify… more
Date: August 1985
Creator: Chaomuangbon, Sunthorn
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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The Metal-Organic Chemical Vapor Deposition of Cu(II)-bishexafluoroacetylacetonate on a Tungsten Substrate

Description: Evidence is reported for the formation of carbon-containing contamination products at the copper-tungsten (Cu-W) interface during the metal organic chemical vapor deposition (MOCVD) of copper on tungsten. Cu(II)bishexafluoroacetylacetonate [Cu(hfac)_2] was physisorbed onto lightly oxidized tungsten (WO_x) at 115K, under ultra-high vacuum conditions, and then annealed sequentially to higher temperatures. Copper reduction was observed by 320K. Carbonaceous and carbidic contamination of the WO_x s… more
Date: May 1992
Creator: Welton, Theresa E. (Theresa Eilene)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Factors Affecting Perception of Fit of Jeans

Description: The purpose of this research was to determine if perception of fit in jeans will vary by target wearer, sex, educational background, political-social attitudes, and brand name. One hundred and sixteen usable questionnaires were completed by students enrolled in the 1987 spring semester at a university in North Texas. The questionnaire gathered data about perception of fit in jeans, social-political attitudes, clothing interest, and jeans consumption. No differences were found between perception… more
Date: August 1987
Creator: Chen, Hsin-Teh
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Self-Structure: Relationship with the Prediction of Behavior and Life History from Thematic Projections

Description: Slides of TAT cards 1 and 2 were shown to 87 college students asked to write stories about them. Subjects also ranked the importance of 5 attributes in understanding their personalities. Attribute scores from projections and centrality scores from rankings, for achievement and autonomy, were regressed onto college GPA, trail-making, and autonomy by life history. Predictions failed to reach suitably low significance levels. Subscaling the life history questionnaire by factor analysis and subsequ… more
Date: December 1980
Creator: Rudolph, Diana Cox
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Knowledge Level of Sales Personnel Employed by a Ladies' Apparel Manufacturer in Dallas, Texas, and the Need for Training

Description: The purposes of this study were to measure and compare the knowledge level of sales personnel employed by a ladies' apparel manufacturer and to examine the need for a training program for sales managers, sales secretaries, and sales representatives. The data were gathered through a four-part questionnaire developed by the researcher. Sales personnel were rated as having low, medium, or high knowledge. The majority rated as having medium knowledge. No significant differences in knowledge level w… more
Date: August 1981
Creator: Smith, Lucy (Lucy Ann)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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NAD+-Dependent 15-Hydroxyprostaglandin Dehydrogenase from Swine Kidney: Characterization and Kinetic Mechanism

Description: Cytoplasmic 15-hydroxyprostaglandin dehydrogenase from swine kidney was purified to specific activity of 1.2 U per mg protein, by chromatographic techniques. Native molecular weight of enzyme was estimated at 45,000. Enzyme was inhibited by sulfhydryls, diuretics, and various fatty acids. Substrate studies indicated NAD+ specificity and ability to catabolize prostaglandins, except prostaglandin B and thromboxane B. Initial velocity studies gave intersecting plots conforming to a sequential mec… more
Date: December 1979
Creator: Kung-Chao, Diana T.-Y.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Diphenyloxazole Metabolism by Aryl Hydrocarbon Hydroxylase

Description: 2,5-Diphenyloxazole (PPO) was tested as a potential alternate inducer for the aryl hydrocarbon hydroxylase (AHH) system. Its apparent lack. of carcinogenicity and toxicity provide a possible system for investigation of enzyme systems related to chemical carcinogenesis without exposure of the researcher to potent carcinogenic compounds. These studies found PPO to be an inducer of AHH in cultured human lymphocytes. When PPO was utilized as a substrate for the AHH assay system, the major metabolit… more
Date: December 1976
Creator: Abreu, Mary E.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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A Survey of the Twentieth Century American Trends in Secondary Mathematics Education

Description: This investigation of twentieth century trends in mathematics education includes the survey of existing literature and questionnaires conducted with retired and active Texas teachers. Historical events, trends in curriculum, instruction, learning theories, and contradictions of twenty-year periods are delineated. Questionnaire responses are tabulated along the same periods and vignettes of typical classrooms are drawn from the data. Results of the survey show the impact of societal forces on m… more
Date: May 1980
Creator: Maloney, Letty Lynn
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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A Study of Goal Congruence within and Among Public Leisure Service Organizations

Description: The purpose of this study is to determine whether goal congruence exists among administrative, supervisory and direct service personnel within public leisure service organizations and among public leisure service organizations of different sizes,. The source of data for the study was a Goal Study Questionnaire distributed to 344 employees of selected leisure service organizations. The results indicated that goal congruence was not established either among duty levels within public leisure servi… more
Date: August 1979
Creator: O'Brien, Kevin Joseph
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Effects of Cigarette Smoke Condensates on Cultured Human Lymphocytes and Separation of Benzo-α-Pyrene Metabolites by High Pressure Liquid Chromatography

Description: Cigarette smoke condensates from all cigarettes tested were found to be potent inducers of AHH enzyme in cultured human lymphocytes and, with the exception of Kent Lights and Carlton CSC's, all were found to be toxic under the experiment conditions. Most of the AHH inducing activity was found in basic and neutral fractions of the lAl standard cigarettes. A radiometric assay of BP metabolites in cultured human lymphocytes was developed in which we were able to separate the primary metabolites an… more
Date: August 1979
Creator: Ghanayem, Burhan I.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Educational Levels and Economic Activity in Iran, 1966-1972

Description: This investigation is an analysis of the educational levels of the labor force from 1966 to 1972. The distribution of the employed who are educated by a major group of economic activities and occupations are studied. The educational levels of the employed by main classes of workers are analyzed. The unemployed by educational categories of the labor force in different areas of the country are also analyzed. Data are for Iran, 1966-1972.
Date: August 1978
Creator: Rivani, Hossein
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Secondary School Teacher's [sic] Knowledge of the Law

Description: This study was concerned with determining the awareness of secondary public school teachers, in the Lewisville Independent School District, regarding the laws which relate to their profession. Fifty-nine true or false statements, involving nine areas of public school law, were administered. The study compared teachers' knowledge in areas of school law based on their personal background. The thesis was divided into five chapters. These chapters included the Introduction, Review of Literature, Pr… more
Date: May 1981
Creator: Wilcox, Judy C.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Job Rating and Satisfaction of Radio Station General Managers in the Institutional Climate of Deregulation

Description: This study tested the job satisfaction of major market radio station general managers in the aftermath of deregulation. The study consisted of two phases, a quantitative, anonymous, mail survey utilizing the nationally recognized Job Descriptive Index (JDI); and a qualitative follow-up telephone interview. Of 246 general managers solicited, 144 returned usable JDI surveys. The JDI consisted of six separate scales, each measuring satisfaction on a different aspect of the job. The followup teleph… more
Date: May 1991
Creator: Loomis, Kenneth D. (Kenneth Dwight)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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A Survey on Student Uses of and Attitudes Toward Broadcast Television News and "Tabloid" Television

Description: A survey testing student uses of and attitudes towards traditional broadcast television news and eleven "tabloid" programs was conducted using 300 students enrolled at the University of North Texas. The 10:00 p.m. newscast was most watched by the students. The most watched weekly news magazine was "60 Minutes." The Oprah Winfrey Show" was the daily "tabloid" leader. "America's Most Wanted" led the weekly "tabloid" shows. Students perceived daily newscasts as important sources of information. "U… more
Date: August 1990
Creator: McDonnell, Rafael C. (Rafael Charles)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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The Analysis of Fire Debris Using Nuclear Magnetic Resonance Spectroscopy

Description: This paper describes a new technique for analyzing fire debris using nuclear magnetic resonance (NMR) spectroscopy. Petroleum distillates, which are commonly used accelerants, were weathered, burned, and steamdistilled. These, as well as virgin samples of the accelerants, were analyzed by gas chromatography and nuclear magnetic resonance spectroscopy. In addition, solvent studies and detectibility limit studies were conducted. The use of NMR is described as a valuable adjunct to the existing me… more
Date: August 1981
Creator: Bryce, Kenneth L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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The Influence of Psychological Stress and Personality upon Athletic Performance of Intercollegiate Tennis Players

Description: This investigation was designed to study coach and self-appraised groupings of intercollegiate tennis players who yield to stress and withstand stress and to determine if personality differences existed between groups. Subjects were 75 intercollegiate tennis players from Texas. A stress inventory and the Cattell Sixteen Personality Factor Questionnaire were instruments utilized in the study. Data were subjected to hierarchical profile-groupings, three-way analyses of variance, and a correlation… more
Date: March 1978
Creator: Reed, Rebecca Lee
Item Type: Refine your search to only Thesis or Dissertation
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Standardization of a Memory Test with an Elderly Population

Description: The Aronson Shopping List is a short-term memory test which integrates current knowledge of brain-behavior relationships in assessment. The test was designed to detect deficiency in fluid intelligence. The goal of this study was to standardize the test on an elderly population. The sample was composed of 67 males and females whose ages ranged from 62 to 89 years. It was found that recent stressful events did not account for variation of performance on the ASL. The reliability of the test, estab… more
Date: August 1984
Creator: Tsang, Michael Hing-pui
Item Type: Refine your search to only Thesis or Dissertation
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A Kinetic Study of the Recombination Reacton Na + SO₂ + Ar

Description: The recombination reaction Na + S02 + Ar was investigated at 787 16 K and at pressures from 1.7 to 80 kPa. NaI vapor was photolyzed by an excimer laser at 308 nm to create Na atoms, whose concentration was monitored by time-resolved resonance absorption at 589 nm. The rate constant at the low pressure limit is ko = (2.7 0.2) x 10-21 cm6 molecule-2 s~1. The Na-SO 2 dissociation energy E0 = 170 35 kJ mol1 was calculated with RRKM theory. The equilibrium constant gave a lower limit E0 > 172 kJ mol… more
Date: December 1990
Creator: Shi, Youchun
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Nymphs of the Stonefly (Plecoptera) Genus Taeniopteryx of North America

Description: Nymphs of the 9 Nearctic Taeniopteryx species were reared and studied, 1976-78. Two morphologically allied groupings, the Taeniopteryx burksi-maura, and T. litalonicera- starki complexes corresponded with adult complexes. A key separating 7 species, based primarily upon pigment patterns and abdominal setal arrangements, was constructed. Taeniopteryx lita and T. starki were indistinguishable; T. burksi was separated from T. maurawhen no developing femoral spur was present. This study was based u… more
Date: May 1978
Creator: Fullington, Kate Matthews
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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