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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

The Self-Characterization of Lillian Hellman in The Little Foxes and Another Part of the Forest

Description: This study analyzed the personalities and actions of Regina, Birdie, Alexandra, and Lavinia from Lillian Hellman's The Little Foxes and Another Part of the Forest. The analysis was focused on the relationship between the life and personality of Lillian Hellman and each of the characters. The method of character analysis that was used was that described by David Grote in Script Analysis, but the effect of cultural history on the characters and on Lillian Hellman was examined as well. It was discovered that Lillian Hellman had infused the characters with many aspects her own personality. In the case of Regina and Lavinia, Hellman also used the characterizations to sort out her mixed feelings toward her parents.
Date: August 1990
Creator: Vickery, Melissa J.
Partner: UNT Libraries

Organochlorine Pesticides and Heavy Metals in Fish From the Trinity River, Texas

Description: The Trinity River passes through the Dallas-Fort Worth metroplex receiving point and non-point source contaminant loadings. Lepomis spp. were collected at twelve sampling locations in the Trinity River in August 1987 and September 1988 and analyzed for organochlorine pesticides and heavy metals. Results from the study were compared to existing U.S. FDA action and tolerance levels, LC50s, and historical data. Various longitudinal trends and some concentration patterns were observed. Continual study of pesticide and metal body burdens in fish allow testing for trends, and thereby, lead to a better understanding of the distribution of contaminants in the Trinity River.
Date: May 1990
Creator: Martinez, Maria L., 1960-
Partner: UNT Libraries

Photochemical Silaylide, Silylene and Silene Syntheses

Description: The synthesis of o-(N,N-dimethylamino)methylphenyl tris (trimethylsilyl) silane (II), a photochemical precursor of o- (N,N-dimethylamino) methylphenyl (trimethylsilyl) sila ammonium ylide (intramolecular silylene complex) and otolyl(trimethylsilyl)silylene is reported. Photolysis of II at room temperature in a cyclohexane solution of triethyl silane produced the silylene ylide and the presumably uncomplexed isomer, a silylene, which is trapped to afford the 2-(o-(N,N-dimethylamino)methylphenyl) -1,1,1-triethyl 3,3,3-trimethyltrisilane, 33% yield. A second decomposition pathway, a photodeamination, produced o-tris(trimethyl silyl) silyltoluene. UV spectra of the silaammonium ylide formed in the photochemical reaction of II was observed at 77k in hard or soft matrices.
Date: August 1990
Creator: Tan, Changqing
Partner: UNT Libraries

Hyperspaces of Continua

Description: Several properties of Hausdorff continua are considered in this paper. However, the major emphasis is on developing the properties of the hyperspaces 2x and C(X) of a Hausdorff continuum X. Preliminary definitions and notation are introduced in Chapter I. Chapters II and III deal with the topological structure of the hyperspaces and the concept of topological convergence. Properties of 2x and C(X) are investigated in Chapter IV, while Chapters V and VI are devoted to the Hausdorff continuum X. Chapter VII consists of theorems pertaining to Whitney maps and order arcs in 2x. Examples of C(X) are provided in Chapter VIII. Inverse sequences of Hausdorff continua and of their hyperspaces are considered in Chapter IX.
Date: August 1990
Creator: Simmons, Charlotte
Partner: UNT Libraries

The Emergence of Christian Television: the First Decade, 1949-1959

Description: The purpose of this research was to describe the relationship and to compare the programming of major Christian ministries during the first decade of Christian television. A historical perspective was the method used in identifying and explaining the events and activities that constituted Christian television from 1949 to 1959. The results of the research concluded that Christian television began at a time of social trauma, unrest, and confusion in America. Competition for a viewing audience was not a factor. Leading personalities presented themselves as independent thinkers who also saw themselves as "preachers" with a strong desire to succeed. Motivation was provided by a sense of "dominion" that emerged from the Great Awakenings within the churches of America that became a driving force in the first three decades of this century.
Date: August 1990
Creator: Roush, Edward W. (Edward Wesley)
Partner: UNT Libraries

Ádám's Conjecture and Its Generalizations

Description: This paper examines idam's conjuecture and some of its generalizations. In terms of Adam's conjecture, we prove Alspach and Parson's results f or Zpq and ZP2. More generally, we prove Babai's characterization of the CI-property, Palfy's characterization of CI-groups, and Brand's result for Zpr for polynomial isomorphism's. We also prove for the first time a characterization of the CI-property for 1 SG, and prove that Zn is a CI-Pn-group where Pn is the group of permutation polynomials on Z,, and n is square free.
Date: August 1990
Creator: Dobson, Edward T. (Edward Tauscher)
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

An Employee Participation Change Project and Its Impact on the Organization: a Case Study

Description: The purpose of this study was to document and assess the consequences of implementing employee involvement in a manufacturing setting. Using a quasi-experimental design, the study utilized information from various sources of data including archives, interview, and questionnaire data for a three to four year period. Time series comparisons were used. The results indicated that production increased initially, but then dropped back to original level. Quality of products increased and continued to improve gradually. The highest rate of improvement was observed in safety. An attempt was made to measure current level of commitment at the plant but was unsuccessful due to a low return rate of questionnaires. Overall, data collected partially support the hypotheses. Implications for further research and practice are discussed.
Date: August 1990
Creator: Roustaei, Simin
Partner: UNT Libraries

The Chaconne Bass as a Musical Topos in Mozart's Fantasia Music

Description: This thesis provides evidence that a particular "topos" from the high Baroque's exalted style, the so-called chaconne bass, made a profound impact on a considerable body of Mozart's compositions from the last ten years of his life in Vienna. After identifying the topos in the first chapter, a detailed study in chapter two shows how Mozart's faith in the extraordinary emotional power carried by this topos was enough for him to work it into all of the completed keyboard fantasias. Chapter three illustrates that an understanding of the chaconne bass and its unmistakable association with the fantasia style can shed new light on three of Mozart's most enigmatic compositions from his final period, K. 465, K. 491, and K. 527.
Date: August 1990
Creator: Spicer, Mark Stuart
Partner: UNT Libraries

Enhancing the Effectiveness of the Lecture Method Through Narrative: the Development of a Model and Manual for Creating and Using Didactic Narratives

Description: Studies show that the use of narratives enhances the lecture method of teaching. The model and manual developed in this study focus on the needs of lecturers who require creative guidance in all aspects of creating and using didactic narratives. This study suggests that the subject content of a lecture has a deep structure that can be used to generate the surface structure of a didactic narrative. The model and manual are informed by theories and models from a variety of disciplines that have been adapted for analyzing subject content, transforming subject content structure into a parallel narrative structure, and integrating the narrative into lecture.
Date: August 1990
Creator: Kirkland, Debra K. (Debra Kay)
Partner: UNT Libraries

The Rhetoric of Spiro T. Agnew: a Neo-Aristotelian Analysis of Agnew's Views Concerning the Media

Description: In November 1969, Vice President Spiro T. Agnew delivered two speeches attacking two mediums. In the first speech, Agnew initiated charges of erroneous reporting and irresponsible actions on the part of the television networks. In the second speech, Agnew assailed the concentration of power in the hands of a few newspaper companies. In both cases, complaints and support were immediate and substantial. This study employs the Neo-Aristotelian method of criticism to discover: 1) the extent to which Agnew was influenced by his past, and 2) how Agnew's rhetoric exhibited methods of rhetorical polarization. This study concludes that Agnew's past played a dominant role in his rhetoric. Further research in a variety of related areas is suggested.
Date: August 1990
Creator: Voorhees, Blain E. (Blain Eldon)
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

The Aronson Cognitive Residual Evaluation Scale (ACRES): an Evaluation of Reliability with the Elderly

Description: The Aronson Cognitive Residual Evaluation Scale (ACRES) is a new, relatively short neuropsychological test which attempts to measure residual cognitive skills. This study evaluated the ACRES test-retest reliability over a one to twelve month interval. The Trail Making Test (TMT) was included as a validation measure. Subjects were 58 males and females, aged 68 to 94, living in a retirement center or in the community. The ACRES exhibited moderate to strong reliability correlations and the TMT demonstrated low to moderate correlations with the ACRES. There was no time interval effect. Age had a negative effect on four of five ACRES subtests and gender was significant for one ACRES subtest and the TMT Part B. Percent of subjects classified as brain impaired using traditional cutoffs was higher than when age-corrected norms were used. Clinical utility of the ACRES and the TMT is discussed regarding need for age-corrected norms.
Date: August 1990
Creator: Marcontell, Deborah K. (Deborah Kay)
Partner: UNT Libraries

The Effect of American Political Party on Electoral Behavior: an Application of the Voter Decision Rule to the 1952-1988 Presidential Elections

Description: The purpose of this study is to examine two major psychological determinants of the vote in presidential elections - candidate image and party orientation. The central thesis of this study is that candidate image, as measured here, has been a greater determinant of electoral choice in the majority of presidential elections since 1952 than has party orientation. One of the vices as well as virtues of a democratic society is that the people often get what they want. This is especially true in the case of electing our leaders. Political scientists have often concentrated their efforts on attempting to ascertain why people vote as they do. Studies have been conducted focusing on the behavior of voters in making that important decision-who should govern?
Date: August 1990
Creator: Lewis, Ted Adam
Partner: UNT Libraries