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An evaluative study of three units developed for multi-cultural and art historical resource curriculum for kindergarten and first grade ar

Description: Two curricular needs exist for the elementary art classroom: multi-cultural lessons which are customized to address North Texas ethnicities, and art history materials for early grades. This thesis addresses both of these concerns by developing lesson plans to meet the needs, and executing an evaluative study with North Texas art and regular classroom teachers of kindergarten and first grade.
Date: December 1990
Creator: Morrison, Pamela Jay Hudson
Partner: UNT Libraries

Solution studies of ⁶Li enriched organolithium compounds using new NMR techniques

Description: With the values of 6Li T1 measured and the literature values of J(13C-6Li) for these compounds, three new 13C NMR techniques are developed for the analysis of organolithium compounds. Modifications to the spectrometer are discussed, as well as calibrations of the 6Li decoupler channel needed to set up these new experiments.
Date: May 1990
Creator: Ellington, Donald H. (Donald Howard)
Partner: UNT Libraries

Topical, conceptual, and theoretical diversity in American sociological Sovietology

Description: Sociology has remained for years on the fringe of Sovietological pursuits, both quantitatively and qualitatively. Yet, few have made a serious effort to systematically examine sociological Sovietology. To partially compensate for such neglect, this study begins to explore the diversity of what sociology has studied and how it has gone about studying it.
Date: December 1990
Creator: Lackey, Chad
Partner: UNT Libraries

Merger type and performance: a longitudinal study of the food and kindred products industry

Description: The purpose of this study was to measure merger performance on a longitudinal basis using a micro perspective. Specifically, this study looked at the performance of a sample of mergers drawn from the food and kindred products industry, Standard Industrial Classification code 20, for a period of five years before and five years after the merger using two performance measures.
Date: December 1990
Creator: Subramanian, Ramachandran
Partner: UNT Libraries

Transactional risk factors and coronary atherosclerosis: the impact of Type A behavior, hostility, and defense style

Description: The relationship of coronary-prone behavior, hostility, and defense style to atherosclerosis was examined. Subjects were 1,271 patients who underwent coronary angiography at Duke University Medical Center between 1974 and 1980. Type A behavior was assessed using both the Structured Interview and Jenkins Activity Survey. The Cook and Medley Hostility Scale and Byrne's Repression-Sensitizationscale, both subscales of the Minnesota Multiphasic Personality Inventory, were employed to measure hostility and defense style.
Date: August 1990
Creator: Byers, Constance S. (Constance Susan)
Partner: UNT Libraries

Novel Regenerated Solvent Extraction Processes for the Recovery of Carboxylic Acids or Ammonia from Aqueous Solutions Part I. Regeneration of Amine-Carboxylic Acid Extracts

Description: Two novel regenerated solvent extraction processes are examined. The first process has the potential to reduce the energy costs inherent in the recovery of low-volatility carboxylic acids from dilute aqueous solutions. The second process has the potential for reducing the energy costs required for separate recovery of ammonia and acid gases (e.g. CO{sub 2} and H{sub 2}S) from industrial sour waters. The recovery of carboxylic acids from dilute aqueous solution can be achieved by extraction with tertiary amines. An approach for regeneration and product recovery from such extracts is to back-extract the carboxylic acid with a water-soluble, volatile tertiary amine, such as trimethylamine. The resulting trimethylammonium carboxylate solution can be concentrated and thermally decomposed, yielding the product acid and the volatile amine for recycle. Experimental work was performed with lactic acid, succinic acid, and fumaric acid. Equilibrium data show near-stoichiometric recovery of the carboxylic acids from an organic solution of Alamine 336 into aqueous solutions of trimethylamine. For fumaric and succinic acids, partial evaporation of the aqueous back extract decomposes the carboxylate and yields the acid product in crystalline form. The decomposition of aqueous solutions of trimethylammonium lactates was not carried out to completion, due to the high water solubility of lactic acid and the tendency of the acid to self-associate. The separate recovery of ammonia and acid gases from sour waters can be achieved by combining steam-stripping of the acid gases with simultaneous removal of ammonia by extraction with a liquid cation exchanger. The use of di-2,4,4-trimethylpentyl phosphinic acid as the liquid cation exchanger is explored in this work. Batch extraction experiments were carried out to measure the equilibrium distribution ratio of ammonia between an aqueous buffer solution and an organic solution of the phosphinic acid (0.2N) in Norpar 12. The concentration-based distribution ratios increase from 0.11 to 0.46 ...
Date: March 1, 1990
Creator: Poole, L.J. & King, C.J.
Partner: UNT Libraries Government Documents Department

Novel Regenerated Solvent Extraction Processes for the Recovery of Carboxylic Acids or Ammonia from Aqueous Solutions Part II. Recovery of Ammonia from Sour Waters

Description: Two novel regenerated solvent extraction processes are examined. The first process has the potential to reduce the energy costs inherent in the recovery of low-volatility carboxylic acids from dilute aqueous solutions. The second process has the potential for reducing the energy costs required for separate recovery of ammonia and acid gases (e.g. CO{sub 2} and H{sub 2}S) from industrial sour waters. The recovery of carboxylic acids from dilute aqueous solution can be achieved by extraction with tertiary amines. An approach for regeneration and product recovery from such extracts is to back-extract the carboxylic acid with a water-soluble, volatile tertiary amine, such as trimethylamine. The resulting trimethylammonium carboxylate solution can be concentrated and thermally decomposed, yielding the product acid and the volatile amine for recycle. Experimental work was performed with lactic acid, SUCCiOlC acid, and fumaric acid. Equilibrium data show near-stoichiometric recovery of the carboxylic acids from an organic solution of Alamine 336 into aqueous solutions of trimethylamine. For fumaric and succinic acids, partial evaporation of the aqueous back extract decomposes the carboxylate and yields the acid product in crystalline form. The decomposition of aqueous solutions of trimethylammonium lactates was not carried out to completion, due to the high water solubility of lactic acid and the tendency of the acid to self-associate. The separate recovery of ammonia and acid gases from sour waters can be achieved by combining steam-stripping of the acid gases with simultaneous removal of ammonia by extraction with a liquid cation exchanger. The use of di-2,4,4-trimethylpentyl phosphinic acid as the liquid cation exchanger is explored in this work. Batch extraction experiments were carried out to measure the equilibrium distribution ratio of ammonia between an aqueous buffer solution and an organic solution of the phosphinic acid (0.2N) in Norpar 12. The concentration-based distribution ratios increase from 0.11 to 0.46 ...
Date: March 1, 1990
Creator: Poole, L.J. & King, C.J.
Partner: UNT Libraries Government Documents Department

Theoretical Studies of Non-Newtonian and Newtonian Fluid Flowthrough Porous Media

Description: A comprehensive theoretical study has been carried out on the flow behavior of both single and multiple phase non-Newtonian fluids in porous media. This work is divided into three parts: (1) development of numerical and analytical solutions; (2) theoretical studies of transient flow of non-Newtonian fluids in porous media; and (3) applications of well test analysis and displacement efficiency evaluation to field problems. A fully implicit, integral finite difference model has been developed for simulation of non-Newtonian and Newtonian fluid flow through porous media. Several commonly-used rheological models of power-law and Bingham plastic non-Newtonian fluids have been incorporated in the simulator. A Buckley-Leverett type analytical solution for one-dimensional, immiscible displacement involving non-Newtonian fluids in porous media has been developed. Based on this solution, a graphic approach for evaluating non-Newtonian displacement efficiency has been developed. The Buckley-Leverett-Welge theory is extended to flow problems with non-Newtonian fluids. An integral method is also presented for the study of transient flow of Bingham fluids in porous media. In addition, two well test analysis methods have been developed for analyzing pressure transient tests of power-law and Bingham fluids, respectively. Applications are included to demonstrate this new technology. The physical mechanisms involved in immiscible displacement with non-Newtonian fluids in porous media have been studied using the Buckley-Leverett type analytical solution. The results show that this kind of displacement is a complicated process and is determined by the rheological properties of the non-Newtonian fluids and the flow conditions, in addition to relative permeability data. In another study, an idealized fracture model has been used to obtain some insights into the flow of a power-law fluid in a double-porosity medium. For flow at a constant rate, non-Newtonian flow behavior in a fractured medium is characterized by two-parallel straight lines on a log-log plot of injection pressure versus time. ...
Date: February 1, 1990
Creator: Wu, Y.S.
Partner: UNT Libraries Government Documents Department

Keeping Good Company: A Critical View of the CIA

Description: Thesis written by a student in the UNT Honors College discussing the Central Intelligence Agency, its operations, its standards, and its future.
Date: Spring 1990
Creator: Graham, Stacy
Partner: UNT Honors College

Problems and Possibilities in the Translation of the Classics

Description: Thesis written by a student in the UNT Honors College discussing the author's translations of two selections by Aristotle. The translation appears on even pages and the author's translation notes follow on odd pages.
Date: Autumn 1990
Creator: Davis, Mike Lee
Partner: UNT Honors College

Reawakening the Dreamtime

Description: Thesis written by a student in the UNT Honors College discussing textual interpretation, linguistics, and philosophy.
Date: Autumn 1990
Creator: Hood, Robert L.
Partner: UNT Honors College

Cardiovascular and Hormonal Responses to Orthostasis Following Four Hours of Head-Down Rest in Endurance-Exercise-Trained and Untrained Subjects

Description: Cardiovascular and hormonal responses to +700 head-up tilt (HUT: orthostatic challenge) were compared between six endurance exercise trained (ET) and six untrained (UT) subjects prior to and immediately following 4 hours of -60 head-down rest (HDR). The ET subjects showed a significant (P < 0.05) decrease in orthostatic tolerance time (pre syncopal symptoms) during post-HDR HUT, while no difference was observed between ET and UT groups in pre-HDR HUT. The volume regulatory hormonal responses were similar between ET and UT groups whether during HUT or HDR. The pre-syncopal subjects had a greater increase in plasma arginine vasopressin and less increase in plasma renin activity and plasma aldosterone during HUT than was observed in non syncopal subjects. These data suggest that HDR deconditioning was more effective in the ET subjects.
Date: December 1990
Creator: Chen, Jia-Jen
Partner: UNT Libraries

Hailstones and Birdcages for Wind Ensemble

Description: Hailstones and Birdcages is a composition of approximately thirteen minutes' duration and is scored for two flutes and piccolo, two oboes and english horn, three Eb clarinets, E clarinete, bass clarinet, two bassoons, two Eb alto saxophones, Bb tenor saxophone, three Bb trumpets, four F horns, three trombones, euphonium, two tubas, and three percussionists. Four instruments--one each of flute, oboe, Bb clarinet, and trombone--are used in concertante like fashion, and there are prominent solo passages for the first bassoon, as well. The work is a single movement in three sections, fast - slow - fast, with ritornello. and employs a free use of the total chromatic. Technically, the work is within the capabilities of an above-average high school or average college wind ensemble
Date: August 1990
Creator: Anderson, Andrew E. (Andrew Edwin)
Partner: UNT Libraries

The Relationship Between Nightmare Frequency and Hypnotic Susceptibility: Valid Correlation or Context-Mediated Artifact?

Description: The possibility that a positive correlation between nightmare frequency and hypnotic susceptibility reported by Belicki and Belicki (1986) was an artifact of administering a sleep questionnaire in the context of a hypnosis experiment was tested in the present study. Measures of vividness and absorption were also administered. Forty subjects, twenty of whom were told that the measures were related to hypnotic responding, completed the questionnaires immediately prior to hypnosis. Twenty other subjects, who completed the questionnaires in contexts unrelated to hypnosis, were later hypnotized. The hypothesis that context of administration of the questionnaires influenced the relationship between the measures and hypnotic susceptibility was not supported. Replication using a larger sample was recommended.
Date: December 1990
Creator: Callahan, Theresa A. (Theresa Ann)
Partner: UNT Libraries

Symptom Based Classification of Environmentally Ill Patients: an Exploratory Study

Description: The purpose of the present study was to discern a symptom pattern for environmentally ill patients and provide evidence of the uniqueness of the resultant pattern to this population. Patients' environmental exposure was confirmed by the presence of toxins in the blood serum. All patients were administered psychological and physical symptom checklists, the Clinical Analysis Questionnaire, and a standardized intermediate neuropsychological examination. Results indicate a response pattern of symptoms including fatigue, low energy, weakness, poor concentration, poor memory, poor comprehension, headaches, aches and pains, clumsiness, sinus discomfort, mucus, eye problems, restlessness, and present performance inferior to prior level of functioning. Presence of these symptoms, as well as the uniqueness of this symptom pattern was supported by comparisons of the patient and standardization groups on the two standardized tests.
Date: December 1990
Creator: Flanagan, William Joseph, 1963-
Partner: UNT Libraries

Distractibility, Impulsivity, and Hyperactivity Measured by the Kaufman Assessment Battery for Children and Personality Inventory for Children

Description: Basic criteria for determination of Attention Deficit Hyperactivity Disorder (ADHD) include hyperactivity, impulsivity, and distractibility. Four scales of the Personality Inventory for Children have been found to be useful in the diagnosis of ADHD. Impulsivity and distractibility can affect scores on the Hand Movements, Number Recall, Word Order, Spatial Memory, Arithmetic, Riddles, and Matrix Analogies subtests of the Kaufman Assessment Battery for Children. Subjects were 100 children, aged six through 13 who were referred for psychological assessment. The purpose of this study was to determine if there was a correlation between scores on the four scales of the PIC and the designated subtest scores on the KABC. Four correlations were significant, but of low magnitude.
Date: May 1990
Creator: Alcantara, Helene Deborah-Lynne
Partner: UNT Libraries

The United States' Recognition of Israel: Determinant Factors in American Foreign Policy

Description: This thesis examines the critical factors leading to the 1948 decision by the United States government to extend recognition to the newly declared State of Israel. In the first of five chapters the literature on the recognition of Israel is discussed. Chapter II presents the theoretical foundation of the thesis by tracing the development of Charles Kegley's decision regime framework. Also discussed is the applicability of bureaucratic structure theory and K. J. Holsti's hierarchy of objectives. Chapters III and IV present the empirical history of this case, each closing with a chapter summary. The final chapter demonstrates the relevance and validity of the theoretical framework to the case and closes with a call for further research into the processes of foreign policy decision-making.
Date: August 1990
Creator: Farshee, Louis M. (Louis Michael)
Partner: UNT Libraries

Requiem for Netted Fish: An Intermedia Composition for Choir, Harp, and Dance

Description: Requiem for Netted Fish is an intermedia composition for sixteen-voice SATB choir, harp, six dancers, slide projections, and lighting. The text, taken from the poetry of Anna Akhmatova and Carolyn Forche, presents a universal, womanly rage against human repression and destruction. The poetry finds aural interpretation in sound, and visual interpretation in movement and lighting. Poetic inspiration contributes to the integration of elements in the work, as does the impulse-exchange method of coordinating mediums, which allows the dancers control of the timing of events. The resultant interdependent relationships necessary for performance contribute to the integration of the composition. The duration of this intermedia work is approximately fifteen minutes.
Date: December 1990
Creator: Hill, Jeanne E. (Jeanne Elizabeth)
Partner: UNT Libraries

A Concurrent Validation Study of a Paper and Pencil Test Battery for a Sales Position

Description: Participating in this study were 251 decorator consultants. The decorator consultant position is a direct sales position. The primary objective of this study was to demonstrate that a relationship existed between decorators' selection test scores and their job performance. The SRA Verbal Form, the EAS Numerical Ability Test, the EAS Space Visualization Test, and the Sales Attitude Checklist were evaluated as potential selection tests. Behavioral criteria and managerial ratings were used to assess job performance. Correlational analyses revealed that all the tests but the SRA Verbal Form were significantly correlated with two or more criteria.
Date: May 1990
Creator: Irons, Deedra Kim
Partner: UNT Libraries

Texas Educational Reform: a Study of the Effects of Mandated Testing in Texas

Description: The problem of the study was to examine the effects of Texas legislated basic skills testing as the effects relate to teachers, administrators, and local school districts. Questionnaires consisting of thirty questions were mailed to a stratified random sample of 120 educators from all twenty Regional Service Centers in Texas. Both teachers and administrators were included in the sample. Factual information and personal opinions were solicited to determine how educators and local school districts have been responding to the testing reform directives. Responses of educational groups and demographic types were compared using the chi-square test and presented in descriptive and tabular form.. Nine findings, nine conclusions, and six recommendations resulted from the study.
Date: December 1990
Creator: Gray, Ruth Ann
Partner: UNT Libraries

Comparability of the WPPSI-R and the Stanford-Binet: Fourth Edition

Description: The purpose of this study was to compare the performance of children on the Wechsler Preschool and Primary Scale of Intelligence-Revised (WPPSI-R) with their performance on the Stanford-Binet Intelligence Scale: Fourth Edition (SB:FE). One hundred and four children between 3 and 7 years of age were administered both tests. A moderate correlation was found between the WPPSI-R Full Scale IQ and the SB:FE Composite Score with a Pearson product-moment correlation of .46. This correlation suggests that the two tests are not interchangeable measures of children's intelligence. They may measure different, equally important aspects of intelligence. As both tests used are relatively new, the current findings should be considered one step in the accumulation of knowledge about the usefulness of the WPPSI-R.
Date: May 1990
Creator: Bass, Catherine
Partner: UNT Libraries

Sediment Bound Trace Metals in the White Rock Creek Watershed, Dallas and Collin Counties

Description: Areas were sampled in the White Rock Creek Watershed to examine sediment bound trace metal distributions and sorption relationships. A Kruskal-Wallis AOV found significant among area differences for most metals, and SNK-like multiple comparisons were used to group these areas. Kruskal-Wallis AOVs similarly found among area differences for sediment components that bind trace metals (Fe and Mn oxides and organic carbon) and physicochemical conditions that influence metal sorption (particle size and pH). Multiple correlation found numerous relationships among trace metals, sediment components, and physicochemical conditions. Statistical relationships indicate that metal partitioning to various sorption factors is metal specific. White Rock Creek Watershed trace metal concentrations are comparable to those in many urban watersheds.
Date: May 1990
Creator: Combest, Kyle B. (Kyle Bryan)
Partner: UNT Libraries