UNT Theses and Dissertations - Browse

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Application of Synthetic Peptides as Substrates for Reversible Phosphorylation

Description: Two highly homologous synthetic peptides MLC(3-13) (K-R-A-K-A-K-T-TK-K-R-G) and MLC(5-13) (A-K-A-K-T-T-K-K-R-G) corresponding to the amino terminal amino acid sequence of smooth muscle myosin light chain were utilized as substrates for protein kinase C purified from murine lymphosarcoma tumors to determine the role of the primary amino acid sequence of protein kinase C substrates in defining the lipid (phosphatidyl serine and diacylglycerol) requirements for the activation of the enzyme. Removal of the basic residues lysine and arginine from the amino terminus of MLC(3-13) did not have a significant effect on the Ka value of diacylglycerol. The binding of effector to calcium-protein kinase C appears to be random since binding of one effector did not block the binding of the other.
Date: August 1992
Creator: Abukhalaf, Imad Kazem
Partner: UNT Libraries

Female Inheritors of Hawthorne's New England Literary Tradition

Description: Nineteenth-century women were a mainstay in the New England literary tradition, both as readers and authors. Indeed, women were a large part of a growing reading public, a public that distanced itself from Puritanism and developed an appetite for novels and magazine short stories. It was a culture that survived in spite of patriarchal domination of the female in social and literary status. This dissertation is a study of selected works from Nathaniel Hawthorne, Sarah Orne Jewett, and Mary E. Wilkins Freeman that show their fiction as a protest against a patriarchal society. The premise of this study is based on analyzing these works from a protest (not necessarily a feminist) view, which leads to these conclusions: rejection of the male suitor and of marriage was a protest against patriarchal institutions that purposely restricted females from realizing their potential. Furthermore, it is often the case that industrialism and abuses of male authority in selected works by Jewett and Freeman are symbols of male-driven forces that oppose the autonomy of the female. Thus my argument is that protest fiction of the nineteenth century quietly promulgates an agenda of independence for the female. It is an agenda that encourages the woman to operate beyond standard stereotypes furthered by patriarchal attitudes. I assert that Jewett and Freeman are, in fact, inheritors of Hawthorne's literary tradition, which spawned the first fully-developed, independent American heroine: Hester Prynne.
Date: August 1994
Creator: Adams, Dana W. (Dana Wills)
Partner: UNT Libraries

Bias in the Diagnosis and Treatment of Gay Males

Description: The purpose of this study was to explore heterosexual bias in the diagnosis and treatment of gay males. Two hundred-fifty (134 males and 116 females) mental health professionals from the Division of Psychotherapy (29) of the American Psychological Association participated in the study. Participants were randomly assigned to one of two case history conditions, which presented a 35-year-old male seeking therapy. Both conditions were equivalent with regards to the presenting problem (i.e., diagnostic symptoms) with the exception of his significant other (i.e., gay vs. non-gay condition). Potential bias was measured through a diagnostic rating Likert scale and a treatment plan questionnaire. Other independent variables that could potentially have an effect on diagnostic ratings were explored, such as gender, year of graduation, and theoretical orientation of the respondents. Results of the statistical analyses failed to confirm evidence of heterosexual bias. Implications for further research and training are discussed.
Date: December 1996
Creator: Adams, Pamela (Pamela Ann)
Partner: UNT Libraries

Identification of College Freshmen According to Scholastic and Persistence Potential

Description: This study was designed to develop a procedure for the identification of freshman students at risk in the academic and social integration process at Texas Christian University. The data for the study were collected from the Student Information Form (SIF) and student records system at Texas Christian University. The data included demographic, attitudinal, educational background and one-year persistence indicators (retain and drop) as well as one-year cumulative grade point averages for the fall 1990 entering freshman class.
Date: December 1992
Creator: Adams, William F. (William Franklin)
Partner: UNT Libraries

The Effect of Presence of Support Systems and Level of Agreement on the Performance of Work Groups

Description: In the study of team-based organizations most of the research has focus on the internal make-up and structure of teams. Recently there has been more interest in the effects that environment has on teams. With this new focus Support Systems in organizations have become an area of interest. Examining the perceptions of workers with respect to support systems of organizations could give insight into performance. This study specifically examines the interaction between a team's shared perception of the support in their environment and the level of support in their environment. The interaction between the two does seem to have a strong relationship with perceived performance. How do the two concepts interact, and what does this mean for organizational designers? Both questions are discussed.
Date: May 1999
Creator: Adcock, John R. (John Roger)
Partner: UNT Libraries

Chronic Ventricular Sympathectomy : Effects on Myocardial Metabolism

Description: Chronic ventricular sympathectomy elicits changes in the coronary circulation, myocardial oxygen consumption and size of infarction resulting fromcoronary occlusion. These changes indicate a change occurring in the basic metabolism of the heart in response to the removal of its sympathetic nervous input. This hypothesis was tested using two groups of dogs, a shamoperated control and a ventricular sympathectomized group. The sympathectomy procedure was an intrapericardial surgical technique which selectively removes ventricular sympathetic input. Four weeks after surgery, left ventricular tissue samples were obtained and rapidly frozen to -80°C. Selected metabolic variables were then compared between the two groups.
Date: August 1993
Creator: Adix Longlet, Nancy J.
Partner: UNT Libraries

Effect of Task Appropriateness, Social Comparison, and Feedback on Female Goals, Performance, and Self-Confidence with a Motor Task

Description: Lenney (1977) concluded that achievement gender differences were predicted by females' lower self confidence and expectancies in competitive situations, identifying three variables that mediated female self confidence in achievement situations, (1) task appropriateness. (2) social comparison, and (3) feedback. The present study manipulated all three mediating variables with 240 undergraduate 18-25 year old female subjects with the pursuit rotor task that requires tracking a moving (40 rpm's) white light with a hand-held stylus for 60 seconds. Response measurement was based upon time on target. Subjects were tested over five trials while setting goals for each trial. Females were randomly assigned to a male appropriate, female appropriate, or gender neutral task condition, a competition or alone condition, and to one of four feedback conditions (no feedback, feedback about own performance only, feedback about own performance that provided the perception that subject was performing better than an opponent and/or average on each trial, or feedback about own performance that provided the perception that subject was performing poorer than an opponent and/or average on each of the five trials). Results from the 2 (social comparison) X 3 (task appropriateness) X 4 (feedback) ANOVA were contradictory to previous findings (Corbin, 1981; Petruzzello & Corbin, 1988) as females performed significantly better in competition than alone. Data support the conclusion that presentation of clear and unambiguous feedback enhanced female self-confidence (Corbin, 1981; Petruzzello & Corbin, 1988; Lenney, 1977). Data also provide null findings for the task appropriateness condition which contradicts the previous research (Corbin, 1981; Lenney, 1977) in that females perceiving the task as male appropriate did not exhibit less self-confidence and perform poorer than when the task was perceived as either female appropriate or gender neutral. Conclusions reflect methodological differences from previous research and changes in gender role identification that have significantly impacted on female ...
Date: May 1990
Creator: Adler, William P.
Partner: UNT Libraries

Nesting Ecology and Reproductive Correlates in the Desert-nesting Gray Gull Larus Modestus

Description: General objectives of my study were to describe the reproductive ecology of gray gulls in the large Lealtad colony, with emphasis on demographic parameters and physiological adaptations of eggs and chicks, which would complete some original objectives established in the early 1980's by Guerra and Fitzpatrick. Specifically, my study focused on describing, then comparing with other desert and non-desert nesting larids, interactive effects of ambient physical conditions and nest-site predation on eggs and chicks.
Date: May 1993
Creator: Aguilar Pulido, Roberto E. (Roberto Eric)
Partner: UNT Libraries

Strategic Planning in Higher Education : A Study of Application in Arkansas Senior Colleges and Universities

Description: This empirical study focused on the level of application of strategic planning by senior colleges and universities in Arkansas. The study was designed to examine, analyze, and describe the extent of strategic planning practices by Arkansas higher education institutions, as reflected in the opinions and perceptions of the institutions' chief executive officers and based on the profile of characteristics validated by twenty experts in the strategic planning literature.
Date: August 1992
Creator: Agwu, Patrick A. (Patrick Agbai)
Partner: UNT Libraries

A History of Contemporary Independent Film Marketing in the United States (1989-1998)

Description: This study explores the reasons for the rise in independent film's popularity, which have created a unique Hollywood phenomenon, the successful "mini-major" independent studio, dedicated to both art and commerce. Chapters cover the history of independent film, characteristics of both independent and mainstreamfilms with regards to financing, acquisition, distribution and marketing, trends within independent film in the late 1980s and 1990s, crucial distributors and landmark independent films, and key growth areas in the future for independent film.
Date: August 1998
Creator: Ahearn, John P. (John Patrick)
Partner: UNT Libraries

Parental Cultural Mistrust, Background Variables, and Attitudes Toward Seeking Mental Health Services for Their Children

Description: Attitudes toward mental illness and the willingness to seek psychological treatment for their children among ethnic minority group parents were investigated. Participants consisted of black, Hispanic, Native American and Asian parents. All parents were given the Terrell and Terrell Cultural Mistrust Inventory, Cohen and Struening Opinions About Mental Illness Scale, Reid-Gundlach Social Services Satisfaction Scale, Fischer-Turner Attitudes Toward Seeking Professional Help Scale, and Ahluwalia Parents' Psychological Help-Seeking Inventory. A multiple regression model was used to explore the purpose of this study. Parental mistrust level, ethnicity, education, income level, and opinions about mental illness served as predictor variables. The criterion variables consisted of scores on the Social Services Satisfaction Scale and Attitudes Toward Seeking Professional Psychological Help Scale. The results indicated that the most significant predictor of psychological help-seeking was parental cultural mistrust level. Parents with higher cultural mistrust levels were less likely to seek help. Education was also predictive of black and Native American parents' help-seeking attitude and willingness to seek psychological help for their children. Black and Native Americans with lower levels of education were less willing to seek treatment for their children than members of those ethnic groups with higher levels of education. Ethnicity was also related to parental willingness to seek help for their children. Hispanic and black parents expressed more willingness to seek help than Native American and Asian parents. Finally, parents' opinions about mental illness were found to be significantly related to help-seeking attitude. Parents with positive opinions about mental illness were more likely to utilize professional psychological help than those parents with negative opinions about mental illness. Some clinical and theoretical implications of these findings are discussed.
Date: August 1990
Creator: Ahluwalia, Ekta
Partner: UNT Libraries

"Beowulf": Myth as a Structural and Thematic Key

Description: Very little of the huge corpus of Beowulf criticism has been directed at discovering the function and meaning of myth in the poem. Scholars have noted many mythological elements, but there has never been a satisfactory explanation of the poet's use of this material. A close analysis of Beowulf reveals that myth does, in fact, inform its structure, plot, characters and even imagery. More significant than the poet's use of myth, however, is the way he interlaces the historical and Christian elements with the mythological story to reflect his understanding of the cyclic nature of human existence. The examination in Chapter II of the religious component in eighth-century Anglo-Saxon culture demonstrates that the traditional Germanic religion or mythology was still very much alive. Thus the Beowulf poet was certainly aware of pre-Christian beliefs. Furthermore, he seems to have perceived basic similarities between the old and new religions, and this understanding is reflected in the poem. Chapter III discusses the way in which the characterization of the monsters is enriched by their mythological connotations. Chapter IV demonstrates that the poet also imbued the hero Beowulf with mythological significance. The discussion in Chapter V of themes and type-scenes reveals the origins of these formulaic elements in Indo-European myth, particularly in the myth of the dying god. Chapter VI argues that both historical and mythological layers of meaning reflect traditional man's view of history as cyclic, a temporal period with a beginning and an end. At the juncture between end and beginning is conflict, which is necessary for regeneration. The interlacing of Christian, historical and mythic elements suggests the impossibility of extricating the individual and collective historical manifestations from the cosmic imperative of this cycle. The Beowulf poet perhaps saw in the ancient myths which permeated his cultural traditions the basis of meaning ...
Date: May 1990
Creator: Aitches, Marian A. (Marian Annette)
Partner: UNT Libraries

Southern Genre Painting and Illustration from 1830 to 1890

Description: The purpose of this thesis is to give a concise view of stylistic, iconographical, and iconological trends in Southern genre paintings and illustrations between 1830 and 1890 by native Southern artists and artists who lived at least ten years in the South. Exploration of artworks was accomplished by compiling as many artworks as possible per decade, separating each decade by dominant trends in subject matter, and researching to determine political and/or social implications associated with and affecting each image. Historical documents and the findings of other scholars revealed that many artworks carried political overtones reflecting the dominant thought of the white ruling class during the period while the significance and interpretation of other artworks was achieved by studying dominant personal beliefs and social practices.
Date: December 1997
Creator: Akard, Carrie Meitzner
Partner: UNT Libraries

Characteristics of Administrative Leadership Behavior : A Comparative Study of Municipal and University Administrators

Description: The problem with which this study is concerned is comparative administrative leadership behavior between municipal and university administrators. The specially designed survey instrument elicited respondents' perceptions of their administrative leadership behavior based on the 12 dimensions of the Leader Behavior Description Questionnaire- XII.
Date: August 1993
Creator: Akidi, Valentine E. (Valentine Emeka)
Partner: UNT Libraries

Perceptions of Student Affairs Services by Students and Student Affairs Personnel at Andrews University, Berrien Springs, Michigan

Description: The purpose of this study was to investigate the perceptions of students and student affairs personnel of student affairs services at Andrews University's main campus in Berrien Springs, Michigan. A modified questionnaire, based on the work of Selgas and Blocker (1974) and Glenister (1977), was developed for this study. Eleven student services found in the Council for the Advancement of Standards for Student Services/Development Program's guidelines were included. A random sample of 280 students at Andrews University received surveys, with 165 (59%) responding. The 30 full-time student affairs personnel also received surveys, with 20 (67%) responding. Students and student affairs personnel rated their perceptions of student services, using 77 statements associated with these services. Services were rated on a 6-point scale in the categories of status of knowledge, relative importance, and effectiveness. Respondents were asked to include additional comments concerning the services and to provide biographical data. The following are some of the main findings: Significant differences between students' and student affairs personnel's status of knowledge of student services were found in career planning/employment, commuter programs/services, counseling services/substance abuse education, religious programs/services, student activities, and wellness/health. Significant differences between the two groups' perceptions of relative importance of student services were found in counseling services/substance abuse education, housing/residential life programs, international student/multicultural services, religious programs/services, student activities, and wellness/health. Significant differences between the two groups' perceptions of the effectiveness of student services were found in counseling services/substance abuse education, minority student programs/services, religious programs/services, services for students with disabilities, student activities, and wellness/health. Important information for the improvement of student services has resulted from this study, which provides student insights about student services that go beyond those of the current student affairs personnel. The study also provides a program-evaluation model unique to Andrews University for periodic assessment of the status and ...
Date: December 1995
Creator: Akos, Hosea Dodo
Partner: UNT Libraries

Structural and Photoelectron Emission Properties of Chemical Vapor Deposition Grown Diamond Films

Description: The effects of methane (CH4), diborone (B2H6) and nitrogen (N2) concentrations on the structure and photoelectron emission properties of chemical vapor deposition (CVD) polycrystalline diamond films were studied. The diamond films were grown on single-crystal Si substrates using the hot-tungsten filament CVD technique. Raman spectroscopy and x-ray photoelectron spectroscopy (XPS) were used to characterize the different forms of carbon in the films, and the fraction of sp3 carbon to sp3 plus sp2 carbon at the surface of the films, respectively. Scanning electron microscopy (SEM) was used to characterize the surface morphology of the films. The photoelectron emission properties were determined by measuring the energy distributions of photoemitted electrons using ultraviolet photoelectron spectroscopy (UPS), and by measuring the photoelectric current as a function of incident photon energy.
Date: August 1998
Creator: Akwani, Ikerionwu Asiegbu
Partner: UNT Libraries

Current and Future Trends in Computer Use in Elementary School Settings

Description: The study examined current and future trends in computer use in elementary school settings. A survey instrument was developed and validated for distribution to a random sample of 200 technology coordinators in the public school districts in the state of Texas from whom 95 responses were received. The survey instrument was used to obtain information about five areas of computer use in elementary schools. These areas are: physical configurations, instructional uses, implementation issues, training and staff development, and Internet use. The study found that all public school districts that participated in the study have acquired computer hardware in their elementary schools. In addition, some other advanced computer technology components are starting to be found in elementary schools, such as teacher workstations, CD-ROM, interactive video, computer multimedia, LCD panels, and laser printers. Respondents reported that elementary school teachers in their districts have incorporated computers into their classrooms as an instructional tool and many changes have occurred in teachers’ teaching styles due to computers. However, there are some problems that hinder the effective use of computers. The major problem is lack of training. A high percentage of respondents, 81.3%, indicated that the majority of their elementary school teachers had completed less than 30 hours of technology related professional development. Another problem was lack of funding which prevents most school districts from acquiring computer hardware and software. Currently, elementary schools in 87% of districts that participated in the study are connected to the Internet and the plan is that by the year 2001 all elementary schools will be connected.
Date: August 1999
Creator: Al-Awidi, Hamed M.
Partner: UNT Libraries

Perceptions of Managers in Kuwait on the Role of the Multinational Corporations in Change in Kuwait

Description: The purpose of this study is to investigate the perceptions of managers in Kuwait (both Kuwaiti and non- Kuwaiti) on the effects of multinational corporations (MNCs) in Kuwait and whether these effects were beneficial. The problem motivating this study is the effects that MNCs have on the social, cultural, political, legal, economic, business, and technological environments of their host countries, especially in developing nations. This study is based on a survey of the perceptions of 1,344 managers in Kuwait on the role of MNCs in changes in Kuwait. A review of the literature on MNCs and their relationships with their host countries is provided. This review focuses on four major environmental dimensions (Social-Cultural, Political-Legal, Business-Economic, and Technological) that are affected by MNCs. The factor analysis performed for this study supports this classification of the dimensions in the environment. An English questionnaire was developed from the list of major items in each of these dimensions. An Arabic version was developed using a "double-translation method." Both the English and Arabic versions of the questionnaire were pilot tested. The instrument proved to be reliable and valid. The study utilizes a 2 x 3 block design, categorizing subjects by nationality (Kuwaiti, other Arab, others) and type of organization (public and private). Since most of the variables in the study were measured using nominal and ordinal scales, mostly non-parametric statistics were used for data analysis. The major finding from this study was that managers in Kuwait perceive positive effects of MNCs on change in Kuwait, with the exception of the cultural environment. The favorable perceptions were about the MNCs1 effects on the change in business, economic, and technological environments in Kuwait. The results of the study should be beneficial to the Kuwaiti government, MNCs doing business in Kuwait, and also to cross-cultural researchers interested in ...
Date: May 1990
Creator: Al-Daeaj, Hamad S. (Hamad Saleh)
Partner: UNT Libraries