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2,719 Matching Results
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Suicide: a Solo Interpretation Performance
The purpose of this project was to determine if oral interpretation in a social context setting can be used as a persuasive means of suicide prevention. A script on suicide was compiled, directed and performed as a solo performance by the writer. The thesis includes the script, a history of suicide prevention, the process of compiling a script for solo interpretation performance, and an overall evaluation of the production. This Author's evaluation was influenced by audience and critic responses.
Date:
May 1990
Creator:
Duncan, Bobby Charles
System:
The UNT Digital Library
Symphonic Poem "New Life" for Orchestra and Yang-Chin
Symphonic Poem New Life is a composition in one movement for orchestra and yang-chin. The work is divided into six continuous sections. It is written in resultant form which is a cumulative process by which all major musical elements return at the end of the work. The tritone is the prominent interval used throughout the piece. Some graphic notation is also employed. The work has a performance time of approximately 13-15 minutes. The yang-chin is a Chinese string instrument similar to the Hungarian cymbalon, which is played with a pair of small beaters. These instruments have similar ranges, and either instrument can be used in this work.
Date:
May 1990
Creator:
Leung, Chi Cheung
System:
The UNT Digital Library
Syntheses and Structures of Substituted Polycyclic Molecules and Analysis of the Two-Dimensional NMR Spectrum of Thiele's Ester
Diels-Alder cycloaddition of methylcyclopentadienes to 2,5-dibromo-p-benzoquinone was performed. A single, isomerically pure cycloadduct was isolated, whose structure was assigned via analysis of its 1-D and 2-D NMR spectra. Diels-Alder cycloaddition of methylcyclopentadienes to 2 -methoxy-p-benzoquinone was performed. A single, isomerically pure cycloadduct was isolated, whose structure was assigned via analysis of the 1-D and 2-D NMR spectra of this cycloadduct and its reduction product obtained via stereo-specific reduction with sodium borohydride in the presence of cerous chloride. The structure of Thiele's ester was assigned via analysis of its 1-D and 2-D NMR spectra.
Date:
May 1990
Creator:
Lu, Shao-Po
System:
The UNT Digital Library
Synthesis, Structure, and Solution Dynamics of Co₄(CO)₈(dmpe)(mu₄-PPh)₂
Reaction of the tetracobalt cluster Co4(CO)10(t 4-PPh)2 with 1,2-bis(dimethylphosphino)ethane (dmpe) affords the bis-substituted cluster Co4(CO)8(dmpe)(t 4-PPh)2. The bidentate dmpe ligand is shown to bind to the cluster in a chelating fashion by IR, NMR, and X-ray diffractions analyses. The fluxional nature of the ancillary carbonyl groups has been studied by variable temperature 13C NMR measurements which reveal two distinct carbonyl scrambling pathways. The stability of the phosphine-ligated cluster has been examined using in situ Cylindrical Internal Reflection (CIR) Spectroscopy. The effect of the dmpe ligand on the cluster polyhedron will be discussed with respect to the observed crystallographic and spectroscopic results
Date:
May 1990
Creator:
Schulman, Cheryl Lutins
System:
The UNT Digital Library
Toxicity of Chromium and Fluoranthene From Aqueous and Sediment Sources to Selected Freshwater Fish
Research efforts in aquatic toxicology have historically centered on the chemical analyses and toxic effects of waters to aquatic organisms. More recently, sediment-source toxicity has been explored, with efforts concentrated on establishing sensitive and accurate methodologies. This study focused on the toxicity of trivalent chromium, hexavalent chromium, and fluoranthene to Pimephales promelas, Ictalurus punctatus, and Lepomis macrochirus. Test fish were exposed to both water-borne and sediment-source toxicants for 96 hours (h) and 30 days (d). A 96-h and 30-d LC50 (mg/L Cr, ug/L Fluoranthene) was determined for each fish species exposed to aqueous toxicants. In addition, 96-h and 30-d LC50s were determined for each fish species from sediment chromium concentrations (mg/kg) and sediment fluoranthene concentrations (ug/kg). Although lethality endpoints were used throughout this research, acute effects other than mortality were determined for Lepomis macrochirus exposed to hexavalent chromium. Lethal toxicity values (96-h and 30-d LC50 and their 95% confidence limits) for trivalent chromium could not be determined since trivalent chromium concentations above 6.0 mg/L could not be obtained at water pHs compatible with these fish species. Trivalent chromium addition to test waters at pHs compatible with fish survival resulted in a chromium precipitate that was not lethal to test fish. …
Date:
May 1990
Creator:
Gendusa, Tony C.
System:
The UNT Digital Library
Validation of a Test Battery for the Selection of Driver Managers in a Trucking Organization
This study was a concurrent validation of a paper and pencil test battery used at a national trucking company. Forty-eight driver managers were rated by their immediate supervisors with the performance appraisal covering 12 dimensions of job behavior that was developed by the experimenter. The driver managers were also administered the Wesman Personnel Classification Test, the Watson-Glaser Critical Thinking Appraisal, and the California Psychological Inventory (CPI). A biographical information blank was also developed and validated. Most validity correlations were nonsignificant, with the exception of the Dominance scale r = .25 (p < .05), the Self-control scale r = -.25 (p < .05), the Communanlity scale r = .29 (p < .05), and the Flexibility scale r = -.39 (p < .05), with overall performance.
Date:
May 1990
Creator:
Cassel, Shirley T. (Shirley Tamsen)
System:
The UNT Digital Library
Perceptions of the Sudanese Professional Working in Saudi Arabia on Migration and Economic Development of the Sudan
The brain drain emerged as a phenomenon in the Sudan in the early 1970's when a change in the political system was followed by a change in the economic situation. The oil price increases created a dynamic process that led to attractive employment conditions in the petroleum producing countries such as Saudi Arabia and to depressed economic conditions in the developing countries like the Sudan. The purposes of the study are to (a) obtain information on the Sudanese professionals working in Saudi Arabia, (b) determine what major factors influence their migration, and (c) to develop policy recommendations on the flow of migration from the Sudan. The population of this study were Sudanese professionals living in Saudi Arabia. Data were generated through surveying a sample of 300 subjects selected randomly from the defined population. A survey questionnaire based on the research questions was developed for this study. Data from 263 respondents were analyzed. The findings of the study suggest that the majority of the Sudanese professionals working in Saudi Arabia are male, between 30 to 40 years of age. They have many years of experience and a high level of qualifications. The factors that led to their migration are: (a) high …
Date:
March 1990
Creator:
Hamid, Adil A. (Adil Abdelaziz)
System:
The UNT Digital Library