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Regulation, Evolution, and Properties of the ato Qperon and its Gene Products in Escherichia coli

Description: The regulation of short chain fatty acid metabolism has been examined. Metabolism of acetoacetate, and short chain fatty acids such as butyrate and valerate, is predicated upon the expression of genes of the ato operon. Acetoacetate induces expression of a CoA transferase (encoded by the atoDA genes) and expression of a thiolase (encoded by the atoB gene). Metabolism of saturated short chain fatty acids requires the activities of the transferase and thiolase and enzymes of 6-oxidation as well. Spontaneous mutant strains were isolated that were either constitutive or that were inducible by valerate or butyrate instead of acetoacetate.
Date: August 1993
Creator: Chen, Chaw-Yuan
Partner: UNT Libraries

Corporate Sale-and-Leaseback Transactions: An Examination of Corporate Incentives, Wealth Effects and Dealer Spreads

Description: There is a limited amount of research dealing with the wealth effects of sale-and-leaseback transactions, but previous research has focused predominantly on the tax effects of these transactions. The results of these studies have often been in conflict with one another. This dissertation shows that tax effects do play a role in determining the wealth effect of sale-and-leasebacks on stockholders, but there exists a framework of finance research that suggests several other factors could play a determining role as well.
Date: August 1993
Creator: Gordon, Bruce L. (Bruce Lee)
Partner: UNT Libraries

The Theory of Capitalistic Stagnation

Description: The problem to be dealt with in this paper is the theory of capitalistic stagnation. Why is it important to examine the theory of capitalistic stagnation? The continuity of the theory of stagnation is the only portion of economic doctrine that is held in common by the Classical, Marxian, Keynesian, and Institutional economists.
Date: 1950
Creator: George, John E.
Partner: UNT Libraries

An Evaluation of an Evolving Curriculum in the Dallas Elementary Schools

Description: The problem of this study is a critical evaluation of some of the objectives and practices in the development of an evolving curriculum in the Dallas Elementary Schools. The criteria are based on the implications found in the study of the ideals of a democracy and the psychology of human growth and learning.
Date: 1950
Creator: George, Cora Lee
Partner: UNT Libraries

A Proposed Curriculum at North Texas State College School of Business for Training Business Managers for the Public Schools of Texas

Description: It is the purpose of this study to determine what training is needed to qualify an individual for the position of school business manager. This study is made to show what duties are performed by business managers in the public schools of Texas and what training in college will be needed to qualify a college graduate for the position of school business manager.
Date: 1950
Creator: Gillen, Norman K.
Partner: UNT Libraries

The Effectiveness of Relationship Films in Changing Attitudes of Adult Homemakers

Description: It is the purpose of this study to determine whether the use of sound films alone, shown to homemakers in adult homemaking classes, is effective in improving attitudes relative to family and social relationships, civic responsibility, and the use of leisure time.
Date: 1950
Creator: Hall, Avis Moran
Partner: UNT Libraries

Improving Reading in a Third Grade

Description: The purpose of this study is to determine and evaluate a third grade reading program that will increase the individual child's reading ability and will stimulate maximum progress during a period of nine months. It is believed that through the development of this program a larger number of the children in this particular group will be able to make the transition from the primary type of reading to the intermediate level at the end of their third year in school.
Date: 1950
Creator: Ham, Mary Swan
Partner: UNT Libraries

The Effects of Parental Divorce and Conflict on Adolescent Separation-Individuation

Description: The influence of parental marital status and parental conflict on the separation-individuation process of college students was investigated in the present study. Past studies have suggested that parental divorce and parental conflict accelerate separation. However, no studies have measured more than one dimension of separation-individuation. In this study the process of separation-individuation was operationalized as involving three dimensions: psychological separation from parents (Psychological Separation Inventory); emotional attachments to parents and peers (Inventory of Parent and Peer Attachment); and the development of an identity (Extended Objective Measure of Ego Identity Status). The sample consisted of 120 male and 120 female undergraduates between the ages of 18 and 22, one-half with parents who were married and one-half with parents who had divorced in the last five years. Subjects completed self-report measures of parental conflict, psychological separation, attachment to parents and to peers, and identity status. Predictions that parental conflict would affect students in intact families differently than their peers with divorced parents were not supported. Instead, parental divorce and conflict were found to have different effects on the components of the separation-individuation process. Subjects reporting higher parental conflict levels described more independent functioning, more negative feelings toward parents, less attachment to parents and to peers, and greater exploration of identity-related issues in comparison to those reporting low levels of conflict. Subjects with parents who had recently divorced reported lower attachment to parents, and greater identity exploration and reluctance to commit to an identity than subjects from intact families. Males reported greater independence from and less attachment to parents, and had committed to an identity without exploration less often than females. Results suggest that parental divorce and conflict may influence adolescent development in different ways. Exploratory analyses suggested that measures of conflict style are more highly related to indices of separation-individuation than measures ...
Date: August 1993
Creator: Marsh, Greg (Gregory Gene)
Partner: UNT Libraries

Language Behaviors and Social Strategies of English as Second Language and English as Primary Language Preschool Children During Computer Assisted Instruction Experiences

Description: This study describes the language behaviors and social strategies of English as Second Language (ESL) and English as Primary Language (EPL) pre-kindergarten students during cooperative Computer Assisted Instruction (CAI) experiences. Thirty-three pre-kindergarten subjects ages four to five years, were videotaped at two personal computers during self-selected center time. The sources of data for this descriptive study were a parent computer survey, videotapes, a subject interview derived from the Young Children's Computer Inventory, and written records.
Date: August 1993
Creator: Emerson, Stacia B. (Stacia Brewster)
Partner: UNT Libraries

The Musical Fallout of Political Activism: Government Investigations of Musicians in the United States, 1930-1960

Description: Government investigations into the motion picture industry are well-documented, as is the widespread blacklisting that was concurrent. Not nearly so well documented are the many investigations of musicians and musical organizations which occurred during this same period. The degree to which various musicians and musical organizations were investigated varied considerably. Some warranted only passing mention, while others were rigorously questioned in formal Congressional hearings. Hanns Eisler was deported as a result of the House Committee on Un-American Activities' (HUAC) investigation into his background and activities in the United States. Leonard Bernstein, Marc Blitzstein, and Aaron Copland are but a few of the prominent composers investigated by the government for their involvement in leftist organizations. The Symphony of the Air was denied visas for a Near East tour after several orchestra members were implicated as Communists. Members of musicians' unions in New York and Los Angeles were called before HUAC hearings because of alleged infiltration by Communists into their ranks. The Metropolitan Music School of New York, led by its president-emeritus, the composer Wallingford Riegger, was the subject of a two day congressional hearing in New York City. There is no way to measure either quantitatively or qualitatively the effect of the period on the music but only the extent to which the activities affected the musicians themselves. The extraordinary paucity of published information about the treatment of the musicians during this period is put into even greater relief when compared to the thorough manner in which the other arts, notably literature and film, have been examined. This work attempts to fill this gap and shed light on a particularly dark chapter in the history of contemporary music.
Date: August 1993
Creator: McCall, Sarah B.
Partner: UNT Libraries

Self-Assessment of Literacy Growth in Young Children

Description: In this study, 78 kindergarten and first-grade children were interviewed about their writing to identify indicators of self-assessment. Writing samples for each participant were saved over a three month period, then compared and discussed by the child. Results indicated that these young children did engage in self:-assessment behaviors. The classroom teachers were asked to place the participants in their classes along a writing continuum known as a Writing Band. Graphs were presented to show the writing levels of the children by classroom. In addition, each classroom was surveyed to document events which promote literacy development within the framework of an integrated curriculum. Writing samples for each child were collected and kept in a portfolio. Participants were interviewed regarding the contents of the portfolio. Children in two of the kindergarten classes were interviewed using 5 samples collected over a 2 1/2 month time period, and all other participants were interviewed using 6 writing samples collected over a 3 month period. Findings indicated that not only did these young children recognize growth in their writing, but they also assessed that growth based on outward, physical features of their writing. The writing ability of each child at the beginning of the study did not appear to affect the child's ability to self-assess writing growth. Children on the first 4 Writing Bands, A, B, C, and D self-assessed using similar criteria. Additional findings suggested that many of these young children knew there was a thought process involved with choosing topics to be written about. The results of this study suggested implications for continued investigations into using self-assessment with young children. For example, it was proposed that varying the learning environment may change the criteria that children use for self-assessment. Further research was recommended that would identify student and teacher behaviors that enhance self-assessment.
Date: August 1993
Creator: Miels, Jill C.
Partner: UNT Libraries

Leadership Communication Among Kindergarten Children in a Structured Play Environment

Description: This study examines the enactment of leadership communication during videotaped play sessions of thirty kindergarten children. Eighteen of the children demonstrated skills in a cluster of five specific leadership behaviors. All five coders agreed that these eighteen children were sometimes leaders of their individual triad. The coders further agreed that the leadership in the triads flowed from one child to another as the session progressed. The study concluded that leadership is a facilitative process that is fluid rather than statically centered in one or more participants.
Date: August 1995
Creator: Giraud, Jeffrey B. (Jeffrey Brian)
Partner: UNT Libraries

The Effect of Age or Previous Post-Secondary Experience on Student Evaluation of Instruction

Description: The increase in the number of nontraditional aged undergraduate students (25 yrs. and older) and students transferring between post-secondary institutions has raised the question of whether effective instruction is viewed the same by these different groups of students. This study addressed this question by analyzing the responses of these different groups to 23 instructional questions on a standard faculty evaluation form.
Date: August 1993
Creator: Klassen, James E. (James Edward)
Partner: UNT Libraries

A Comparison of Traditional Norming and Rasch Quick Norming Methods

Description: The simplicity and ease of use of the Rasch procedure is a decided advantage. The test user needs only two numbers: the frequency of persons who answered each item correctly and the Rasch-calibrated item difficulty, usually a part of an existing item bank. Norms can be computed quickly for any specific group of interest. In addition, once the selected items from the calibrated bank are normed, any test, built from the item bank, is automatically norm-referenced. Thus, it was concluded that the Rasch quick norm procedure is a meaningful alternative to traditional classical true score norming for test users who desire normative data.
Date: August 1993
Creator: Bush, Joan Spooner
Partner: UNT Libraries

Gowin's Knowledge Vee: A Heuristic for Adult Religious Education

Description: The application of Gowin's knowledge vee as a means to design instruction for adult Bible study was investigated in this study. The study was designed to determine whether subjects using this instructional approach differed from subjects using traditional instructional materials regarding their attitudes toward Bible study, attendance, knowledge retention, application of study materials to life, and recruitment of new class members.
Date: August 1993
Creator: Funck, James H.
Partner: UNT Libraries

Perceptions of the Leadership Role of Deans of Students in the Public Universities of Kenya

Description: This study concerns the leadership behavior of the deans of students in the four public universities of Kenya and their constituent colleges. Both the real and ideal versions of the Leader Behavior Description Questionnaire and the demographic questionnaire developed under the auspices of faculty advisors were used to collect data from 10 deans of students, 55 student affairs staff members, and 130 student leaders--who constituted the sample of 195 who responded from the chosen population. Data were analyzed using a series of one-way analyses of variance utilizing the f test of statistical difference. Fisher's least significant difference test, a multiple comparison procedure, was utilized to make all pairwise comparisons which were detected by the ANOVA to differ significantly from one-another among the respective mean ratings of the three groups surveyed. Twelve hypotheses were developed and tested, and the major findings included: There were significant differences among the perceptions of the deans of students, student affairs staff members, and student leaders regarding the real and ideal leadership behavior of the deans of students concerning initiating structure and consideration--the two leadership dimensions surveyed on the questionnaire.
Date: August 1993
Creator: Maronga, Geoffrey Bosire
Partner: UNT Libraries

The Relationship between Self-Reported Bulimic Behavior and Cardiovascular Reactivity to a Weight Stressor

Description: This investigation sought to identify anxiety responses to weight measurement, assessed by verbal report and cardiovascular reactivity CCR3 (systolic blood pressure, diastolic blood pressure, heart rate), which might differentiate females with either high or low self-reported bulimic behavior. Secondar i ly,, the study attempted to examine specific autonomic nervous system (ANS) arousal patterns of each group over time. The Bulimia Test (BULIT), Body Dissatisfaction Scale (BD), and a demographic questionnaire were administered to 105 undergraduate females at The University of North Texas. Based on BULIT scores, females were divided into high or low bulimic behavior groups. Of the 105 females screened, forty participated in the experiment which consisted of four phases: relaxation, anticipation of weight measurement, weight measurement, and recovery. Subjects had no prior knowledge of the weight stressor until presentation during the experiment. Results showed that subjects' notion of ideal weight was substantially lower than measured weight. During weight measurement, all subjects reported increased anxiety although the high group reported significantly more anxiety. Contrary to prediction, no significant group differences in CR were found when repeated measures multivariate analysis of variance (MANOVA) was performed. Orthogonal polynomial trend analysis was done with pooled groups, resulting in significant within-subject trends for all cardiovascular measures. There was also a significant group by time of measurement interaction for heart rate during the weight measurement phase. Correlational analyses failed to produce significant results between verbal report of anxiety and CR. There was, however, a significant correlation between BULIT and BD scores. It was concluded that heightened subjective anxiety during weight measurement could not be attributed to group differences in CR. Regarding ANS arousal patterns, mixed evidence of active and passive coping was seen. Nevertheless, both psychological and physiological measures supported an overvaluation of female thinness consistent with societal trends regardless of group membership. Implications ...
Date: August 1993
Creator: Marcontell, Deborah K. (Deborah Kay)
Partner: UNT Libraries

The Influence of Bela Bartok on Symmetry and Instrumentation in George Crumb's Music for a Summer Evening with Three Recitals of Selected Works of Abe, Berio, Dahl, Kessner, Miki, Miyoshi, and Others

Description: The purpose of this document is to investigate the influence of Bela Bartok's music, specifically the Sonata for Two Pianos and Percussion, on George Crumb's Music for a Summer Evening. It concentrates on two specific areas: 1) the role of symmetry and 2) instrumentation. These two items were stressed during an interview with Crumb by the author, which is appended to the paper.
Date: August 1993
Creator: Kingan, Michael Gregory
Partner: UNT Libraries

Filial Therapy with Single Parents

Description: This study was designed to determine the effectiveness of filial therapy as a method of intervention for single parents and their children.
Date: August 1993
Creator: Bratton, Sue Carlton
Partner: UNT Libraries

Object Representations of Sexually and Multiply Abused Females: A TAT Analysis

Description: Object representations of sexually abused girls were compared to those of a clinical control group with no history of maltreatment. In addition, girls subjected to sexual abuse by itself were compared with girls who were sexually abused in conjunction with physical abuse and/or neglect (i.e., multiply abused). TAT stories were analyzed using the Object Relations and Social Cognition Scale which assesses four dimensions of object relations. It was hypothesized that sexually abused children would manifest more general and highly pathognomic impairment than controls along four dimensions of object relations. It was also hypothesized that multiple abuse would be associated with more general and highly pathognomic impairment in object relations than sexual abuse by itself.
Date: August 1994
Creator: Thode, Rick D. (Rick Davis)
Partner: UNT Libraries