A preliminary study of the effects of selective-serotonin re-uptake inhibitors (SSRIs) on central auditory processing

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his study compared auditory behavioral and physiological measures among three subject groups: 1) Normal control subjects, 2) subjects who were on a prescribed SSRI for depression, and 3) subjects who were prescribed an SSRI for depression, but were not medicated at the time of testing. Test measures included: Standard audiological tests (audiometry and tympanometry), electrophysiological procedures for analysis of auditory- evoked brainstem and late responses, and standardized behavioral speech tests (SCAN-A, SSI, and the low predictability sentence list of the R-SPIN). Analysis of results indicated a statistically significant increase of group mean amplitude of the ABR peak V, from 15dBnSL to 55dBnSL, in the non-medicated group compared to controls. Also, the non-medicated group scored significantly less favorably than controls on the most challenging listening condition (-20 MCR) of the SSI, in the left ear. Although other test measures indicated consistent differences between these two groups, they were not, however, significant.
Date: August 2001
Creator: Bishop, Charles E.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
An Analysis of the Effect of Environmental and Systems Complexity on Information Systems Failures (open access)

An Analysis of the Effect of Environmental and Systems Complexity on Information Systems Failures

Companies have invested large amounts of money on information systems development. Unfortunately, not all information systems developments are successful. Software project failure is frequent and lamentable. Surveys and statistical analysis results underscore the severity and scope of software project failure. Limited research relates software structure to information systems failures. Systematic study of failure provides insights into the causes of IS failure. More importantly, it contributes to better monitoring and control of projects and enhancing the likelihood of the success of management information systems. The underlining theories and literature that contribute to the construction of theoretical framework come from general systems theory, complexity theory, and failure studies. One hundred COBOL programs from a single company are used in the analysis. The program log clearly documents the date, time, and the reasons for changes to the programs. In this study the relationships among the variables of business requirements change, software complexity, program size and the error rate in each phase of software development life cycle are tested. Interpretations of the hypotheses testing are provided as well. The data shows that analysis error and design error occur more often than programming error. Measurement criteria need to be developed at each stage of the …
Date: August 2001
Creator: Zhang, Xiaoni
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Barriers Limiting Access to Hospice Care for Elderly African Americans in Amarillo, Texas

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This study examines barriers limiting access to hospice care for elderly African Americans. Ethnic background plays a critical role in the development of attitudes, beliefs and expectations related to death and issues surrounding hospice care. The purpose of this study was to identify barriers that may limit access to hospice care for African Americans. A questionnaire was administered to 56 elderly African Americans in three religious settings and an African American senior citizens center. The questionnaire was designed to obtain information concerning African Americans' attitudes toward death and dying; religious beliefs; health beliefs; familiarity with hospice and prospective use of hospice. The results of the study indicate a number of barriers in access to hospice care for African Americans including: hospice knowledge barriers; education/outreach barriers; cultural knowledge barriers related to death/dying values; family/social support barriers; hospice organizational/provider barriers; health care organizational/provider barriers; and reimbursement barriers.
Date: August 2001
Creator: Anthony, Tomagene
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Problems Encountered in Money Laundering Investigations (open access)

Problems Encountered in Money Laundering Investigations

The purpose of this study is to identify how the U.S. is responding to money laundering and what kind of problems arise while countering it, beginning with a detailed description of money laundering, its stages, typologies, impacts, and complications. Due to the broad nature of this subject only three main issues form the focal point of this study: problems concerning the banking industry and other financial organizations, problems resulting from the limitations of law enforcement agencies, and problems arising from the lack of cooperation between and within financial institutions and law enforcement agencies. Several probable solutions to the above problems are identified: Considering the financial industry, there are loopholes in the Bank Secrecy Act (BSA) and in other regulations that apply to the industry. Thus, there is a comparison of the Subjective Model vs. Objective Model in terms of reporting systems for financial organizations. On the law enforcement side, the priority is the need to update and upgrade their technology and investigation mechanisms in order not to fall behind the criminals. Finally, cooperation is something that can be achieved through mutual respect and understanding of the priorities of each side, which can be achieved by the creation of an upper …
Date: August 2001
Creator: Akyay, Ilkay
Object Type: Thesis or Dissertation
System: The UNT Digital Library

The Developmental Physiology of the Zebrafish: Influence of Environment and Cardiovascular Attributes

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Temperature effects on the development of the zebrafish embryos and larvae and adults were examined. It was found that the earlier in development a temperature change was performed on an embryo, the more significant the change in survival and/or subsequent development. Thus, viable temperature ranges for zebrafish widened significantly as development proceeded. Adults reared and bred at 25oC produced embryos that were significantly more successful at the lower range of rearing temperatures compared to embryos produced from adults reared at 28oC. The majority of this study focused on the physiological effects of swim training during development in the zebrafish. The earlier in development the zebrafish larvae were trained, the greater the mortality. Trained free swimming larvae had a significantly higher routine oxygen consumption after 11 days of training, and a higher mass specific routine metabolic rate after 8 and 11 days of training. Trained free swimming larvae consumed significantly less oxygen during swimming and were more efficient at locomotion, compared to control larvae. Training enhanced survival during exposure to extreme hypoxia in all age groups. Performance aspects of training were investigated in attempt to quantify training effects and in most cases, trained fish performed significantly better than controls. As blood …
Date: August 2001
Creator: Bagatto, Brian
Object Type: Thesis or Dissertation
System: The UNT Digital Library

A Cost-Benefit Approach for Describing and Processing Digital Objects

This presentation discusses the costs and benefits associated with creating the metadata and ensuring metadata quality in The Portal to Texas History.
Date: August 30, 2008
Creator: Belden, Dreanna
Object Type: Presentation
System: The UNT Digital Library
State of the Climate in 2008 (open access)

State of the Climate in 2008

This report describes observations of precipitation, temperature, and other climatology metrics from different global regions.
Date: August 2009
Creator: Peterson, T. C.; Baringer, M. O.; Diamond, H. J.; Fogt, R. L.; Levy, J. M.; Richter-Menge, J. et al.
Object Type: Text
System: The UNT Digital Library
Workshop on New Emissions Scenarios Meeting Report (open access)

Workshop on New Emissions Scenarios Meeting Report

This report summarizes a workshop which investigated the possible roles that the IPCC could play in developing and assessing new emission scenarios.
Date: August 2005
Creator: Intergovernmental Panel on Climate Change
Object Type: Text
System: The UNT Digital Library
Similarities in the Use of Dramatic Recitative Style in the Music of Claudio Monteverdi and Giuseppe Verdi, with Some Performance-Practice Issues (open access)

Similarities in the Use of Dramatic Recitative Style in the Music of Claudio Monteverdi and Giuseppe Verdi, with Some Performance-Practice Issues

The objective of this dissertation, inspired by performance experience, was to establish the similarities in the use of recitative style in the music of Claudio Monteverdi and Giuseppe Verdi. To achieve this objective, their use of recitative style was examined through comparative analysis of four scenes from their operas: “Arianna's Lament” from L'Arianna and “Disprezzata regina” from L'incoronazione di Poppea by Monteverdi, and “Condotta ell'era in ceppi” from Il trovatore and “Judgment Scene” from Aida by Verdi. The examination of the similarities included a discussion of the following: (a) the historical influences and cultural backgrounds of the composers; (b) general similarities in their compositional approaches to recitative style; (c) comparable characteristics of the dramatic recitative style in the early Baroque monody and in Verdi's operas; (d) similarities in musical characterization and expression of affective and emotional content through stylistic musical devices; (e) similarities in the composers' approaches to vocal and acting issues with special emphasis on the problems of diction; and (f) some related performance-practice issues. A discussion of the poetic lament and the influence of its form and content on musical setting was also a part of this research. The comparative research revealed numerous similarities in the historical circumstances …
Date: August 2001
Creator: Mihelcic, Sonja
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The use of notated and aural exercises as pedagogical procedures intended to develop harmonic accuracy among beginning jazz improvisers (open access)

The use of notated and aural exercises as pedagogical procedures intended to develop harmonic accuracy among beginning jazz improvisers

This study compared the effects from the use of aural and notated exercises as pedagogical procedures for teaching harmonic accuracy to beginning jazz improvisation students. The methods of pedagogy were identified from published pedagogic and historical sources, the results of oral and written traditions of jazz pedagogy. The performance objective was produced from a review of the related literature as a recognized and measurable characteristic of jazz improvisation. The purpose of this study was to compare measurements of harmonic accuracy, following the use of notated and aural exercises as experimental procedures of jazz improvisation pedagogy. A lesson plan, materials, curriculum and outline were developed followed by student recruitment and participation. A total of 20 student volunteers participated in the methods of pedagogy (aural or notation). Data collection consisted of a musical background questionnaire and pre and posttest performance recordings. Student recordings were evaluated by six judges using the “experimental performance evaluation measure.” Statistical analyses were conducted, including comparisons of pre to posttest effects between, and among the methods of pedagogy. Although all student participants performed mostly from notated music prior to this study, students who received the aural method of pedagogy produced greater improvement for all measurement items. While the …
Date: August 2001
Creator: Laughlin, James Edwin
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Changing Face of Ralph Lauren's Advertising: A New Lifestyle Image and Increased Nudity (open access)

The Changing Face of Ralph Lauren's Advertising: A New Lifestyle Image and Increased Nudity

Advertising, which is an important sales tool for brands to the masses, may produce lasting impressions of a company and its products. These impressions rely on a consistent message over time to maintain a brand's image. This study examines how Ralph Lauren's advertising images have changed from a country club lifestyle image to urban/hip. In addition, the study examines the increased use of nudity and sexual imagery in Lauren's advertising. The findings were obtained by content analyzing all Ralph Lauren advertisements appearing in Gentlemen's Quarterly magazine from 1980 to 2000 (N=283). The study finds that Ralph Lauren lifestyle images have become more urban/hip, and that Lauren's advertising is utilizing more nudity, sexual interaction, and homoerotic imagery. By examining Ralph Lauren's shifting brand image via its advertising, this study contributes to a greater understanding of the connection between advertising and a company's brand image.
Date: August 2001
Creator: LaCaze, Tray
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Dr. Richard Price, the Marquis de Condorcet, and the Political Culture of Friendship in the Late Enlightenment (open access)

Dr. Richard Price, the Marquis de Condorcet, and the Political Culture of Friendship in the Late Enlightenment

The eighteenth century saw many innovations in political culture including the rise of the public sphere where political ideas were freely and openly discussed and criticized. The new public sphere arose within the institutions of private life such as the Republic of Letters and salons, so the modes of behavior in private life were important influences on the new political culture of the public sphere. By studying the lives and careers of Richard Price and the Marquis de Condorcet, I examine the role that the private institution of friendship played in the new political culture of the late Enlightenment. During the 1780s, friendship became an important political symbol that represented the enlightened ideals of equality, reciprocity, liberty, and humanitarianism.
Date: August 2001
Creator: Kruckeberg, Robert Dale
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Mass media in the writing process of English as a second language kindergarteners: A case study examination (open access)

Mass media in the writing process of English as a second language kindergarteners: A case study examination

Mass media such as television, video players, video games, compact disks, and the computers are commonplace in current American culture. For English as a Second Language children, television may be the only source of English in the home serving as models of grammar, syntax, story structure. An investigation was made using English as a Second Language (ESL) kindergarteners, the classroom writing center, participant-observation, teacher as researcher, and case study methodology to investigate the following questions: Do ESL kindergarten children use media in their writing? If so, how do they use media in their writing? Upon examination of the data, it was found that all these ESL children did use media in the writing process. The function and form of the media references varied from child to child. Media was a cultural context for the childrenÕs social interactions. Oral language (with and without media references) not only informed the writing for some, but also served: to initiate, participate in, and sustain social relationships with peers. Findings indicated that two case study subjects used social dialogue as a separate operation from the production of a written story. Language informed the writing but it also had a socialization function in addition to what …
Date: August 2001
Creator: Melton, Janet Moody
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Minorities, gender, managerial jobs, and income, 1960-1990 (open access)

Minorities, gender, managerial jobs, and income, 1960-1990

Changes in income and representation in managerial occupations is explored separately for women and men among the United States' eight largest race/ethnic minority groups for each decennial census of 1960, 1970, 1980 and 1990 to determine how much change has occurred between 1960 and 1990 in race and ethnic inequality, and in gender inequality within each race/ethnic group. Insights from gender theory are applied to minority group inequality and insights from minority group theory are applied to gender inequality with some degree of success. Economic change is uneven among the groups, with the largest specific change being the movement of women into managerial jobs. A clear pattern also emerged indicating that the higher the average representation of a minority group in managerial jobs, the greater the gap between women and men. The income of all persons with income, however, did not exhibit such a clear pattern across the different groups.
Date: August 2001
Creator: McDanel, Rodney A
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Job Satisfaction of Juvenile Facility Directors: Results from a National Survey (open access)

Job Satisfaction of Juvenile Facility Directors: Results from a National Survey

This study utilizes a national survey to measure the job satisfaction of juvenile facility directors. The prior literature has focused on the experiences of line personnel within the adult correctional system, and this research serves to provide new information regarding this specific population. The current study will address the predictors and correlates of a director's job satisfaction. It is hypothesized that specific characteristics within the organization will predict job satisfaction. Issues regarding staff within an institution and their effect on a director's job satisfaction are the focus. Results indicate that staff issues significantly contribute to the job satisfaction of a director. Specifically, this research can be used to understand facility director retention, staff and juvenile related issues, and the effect of job satisfaction on criminal justice policy issues.
Date: August 2001
Creator: Flanigan, Amy Renee
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Hyperspace Topologies (open access)

Hyperspace Topologies

In this paper we study properties of metric spaces. We consider the collection of all nonempty closed subsets, Cl(X), of a metric space (X,d) and topologies on C.(X) induced by d. In particular, we investigate the Hausdorff topology and the Wijsman topology. Necessary and sufficient conditions are given for when a particular pseudo-metric is a metric in the Wijsman topology. The metric properties of the two topologies are compared and contrasted to show which also hold in the respective topologies. We then look at the metric space R-n, and build two residual sets. One residual set is the collection of uncountable, closed subsets of R-n and the other residual set is the collection of closed subsets of R-n having n-dimensional Lebesgue measure zero. We conclude with the intersection of these two sets being a residual set representing the collection of uncountable, closed subsets of R-n having n-dimensional Lebesgue measure zero.
Date: August 2001
Creator: Freeman, Jeannette Broad
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Factors That Affect College Students' Attitudes Toward Interracial Dating (open access)

Factors That Affect College Students' Attitudes Toward Interracial Dating

This study was designed to examine the attitudes of undergraduate students toward interracial dating. The study examined the influence of race, gender, and previous interracial dating experience on interracial dating attitudes. The independent variable of racial identity salience was also examined. A final sample consisted of 389 students, recruited from first year political science classes at the University of North Texas. An 11- item self administered questionnaire was used to collect the data. The results indicated that race and previous interracial dating experience was associated with college students' attitudes. A weak association was also found between greater racial identity salience and less positive interracial dating attitudes. Future research should further examine racial identity salience and its role in partner selection.
Date: August 2001
Creator: Gafford, Farrah D.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Spatial and Temporal Patterns of Areal and Volumetric Phytoplankton Productivity of Lake Texoma (open access)

Spatial and Temporal Patterns of Areal and Volumetric Phytoplankton Productivity of Lake Texoma

Phytoplankton productivity of Lake Texoma was measured for one year from August 1999 to August 2000 for four stations, using the oxygen change method and laboratory incubation. Mean values of the photosynthetic parameters, PBmax and alphaB ranged from 4.86 to 46.39 mg O2.mg Chl-1.hr-1 for PBmax and 20.06 to 98.96 mg O2.mg Chl-1.E-1.m2 for alphaB. These values were in the range to be expected for a highly turbid, temperate reservoir. Estimated gross annual areal productivity ranged from 594 g C.m2.yr-1 (P.Q. = 1.2), at a station in the Washita River Zone to 753 g C.m2.yr-1 at a station in the Red River Zone, of the reservoir. Gross annual areal productivity at Station 17, in the Main Lake Zone, was 708 g C.m2.yr-1. Gross areal and volumetric productivity showed distinct seasonal variation with Photosynthetically Available Radiation (PAR) and temperature. Trophic status estimated on a station-by-station basis, using net productivity values derived from gross productivity and respiration estimates, was mesotrophic for all the stations, though one station approached eutrophy. Net productivity values ranged from 0.74 to 0.91 g C. m-2.d-1. An algal bioassay conducted at two stations in August 2000, revealed that phosphorus was most likely the nutrient limiting photosynthesis at both …
Date: August 2001
Creator: Baugher, Tessy
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Revisiting Eric Nordlinger: The Dynamics of Russian Civil- Military Relations in the Twentieth Century (open access)

Revisiting Eric Nordlinger: The Dynamics of Russian Civil- Military Relations in the Twentieth Century

This paper examines the role that military has played in the political development of the former Union of Soviet Socialist Republics and the modern Russian Federation. By utilizing the theoretical tenets of Eric Nordlinger, this paper endeavors to update and hopefully revise his classic work in civil-military relations, Soldiers in Politics. Chapter one of this paper introduces many of the main theoretical concepts utilized in this analysis. Chapter two considers the Stalinist totalitarian penetration model that set the standard for communist governments around the world. Chapter three follows up by addressing the middle years of Khrushchev and Brezhnev. Both reformed the military in its relation to the party and state and made the armed forces a more corporate and professional institution. Chapter four pinpoints the drastic changes in both the state and armed forces during Gorbachev's perestroika and glasnost. The military briefly ventured to a point it never gone before by launching a short coup against the last Soviet president. Chapter five focuses on the last ten years in the Russian Federation. While still a professional organization typical of the liberal model of civil-military relations, the armed forces face great uncertainty, as economic and social problems demand more of their …
Date: August 2001
Creator: Ardovino, Michael
Object Type: Thesis or Dissertation
System: The UNT Digital Library
John Graves and the Pastoral Tradition (open access)

John Graves and the Pastoral Tradition

John Graves's creative non-fiction has earned him respect in Texas letters as a seminal writer but scarce critical commentary of his work outside the region. Ecological criticism examines how language, culture and the land interact, providing a context in which to discuss Graves in relation to the southwestern literary tradition of J. Frank Dobie, Walter P. Webb, and Roy Bedichek, to southern pastoral in the Virgilian mode, and to American nature writing. Graves's rhetorical strategies, including his appropriation of form, his non-polemical voice, his experimentation with narrative persona, and his utilization of traditional tropes of metaphor, metonymy, and irony, establish him as a conservative and Romantic writer of place concerned with the friction between traditional agrarian values and the demands of late-twentieth-century urban/technological existence. Sequentially, Graves's three main booksGoodbye to a River (1960), Hard Scrabble (1974), and From a Limestone Ledge (1980)represent a movement from the pastoral mode of the outward journey and return to the more domestic world of georgic, from the mode of leisure and contemplation to the demands and rewards of hard work and ownership. As such they represent not only progression or maturation in the arc of the narrator's life but a desire to reconcile ideological …
Date: August 2001
Creator: Anderson, David Roy
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Physical activity and its association with selected dietary behaviors (open access)

Physical activity and its association with selected dietary behaviors

This study examined the association between level of physical activity and changes in dietary behaviors of 3,945 employees after a 10-week work-site physical activity program. Fifty-seven percent of the participants met the CDC/ACSM standard for physical activity sufficient for a health benefit. Physical activity was not significantly related to increased fruit and vegetable consumption, decreased dietary fat and calorie intake, and participants acquiring new nutrition skills. Physical activity was negatively associated with increased food label awareness. Participants who exercised sufficient for a health benefit were less likely to increase their food label awareness. Physical activity and dietary behaviors are generally not associated. Interventions to improve these behaviors should be behavior-specific.
Date: August 2001
Creator: Cartwright, Amanda R.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The relationship of attachment and shame to anorexia: A case study comparing restrictive and normal eaters (open access)

The relationship of attachment and shame to anorexia: A case study comparing restrictive and normal eaters

Research has described and many clinicians have reported the anorectic patient as socially disconnected, having a disembodied sense of self, perfectionist expectations, and inadequate and shameful feelings. The more intense the internal war, the more food-focused and self-defeating behavior ensues, thwarting one's ability to receive value, self-acceptance, and love. Addressing the anorexia phenomenon, this study considered, from a sociological perspective, the dynamics of attachment and shame. On the basis of 4 propositions and using a multi-method, case-replication design, attachment and shame patterns for 5 restrictive and 5 normal eaters were compared, as determined by scores from the Parental Bonding Instrument, Inventory of Parental and Peer Attachment, Internalized Shame Scale, and personal interviews. Analysis was progressive, as propositions were tested by pattern-matching steps of rating, comparing, and interpreting recurring responses to self-report and interview questions. All anorectics reported a dominant mother, with whom 4 were over attached and struggled ambivalently for autonomy, and a quiet, inexpressive father, whom 4 considered frequently absent or unavailable. As compared to normal eaters, anorectics' trust and communication scores were lower for both parents and peers. Generally, anorectics showed markedly higher internalized shame. Findings indicated that nonoptimal parental bonding patterns were related to shame. The maternal …
Date: August 2001
Creator: Evans, Gloria J.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
New Organized Crime: Problems and Issues for Information Analysis (open access)

New Organized Crime: Problems and Issues for Information Analysis

This study illustrates the changing nature of organized crime at both national and international levels. Organized crime groups have changed in that they have entered the realm of high technology. In response this change, the use of new or modified analytical tools is suggested to enhance law enforcement efforts. This study highlights the problems of, and offers particular solutions for information analysis in its use in the fight against organized crime. Ultimately, it is argued that combined crime and intelligence analysis can be an effective and efficient method for the detection and prevention of modern organized crime.
Date: August 2001
Creator: Demirci, Suleyman
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Historical Changes in Elderly Cohorts' Attitudes toward Mental Health Services (open access)

Historical Changes in Elderly Cohorts' Attitudes toward Mental Health Services

Older adults' attitudes toward mental health services have received little research attention. Overall, older adults are thought to hold relatively negative attitudes. In this study, Analysis 1 investigated historical shifts in attitudes toward mental health services among three independent samples of older adults, separated by 14-year and 9-year intervals (1977 sample, N = 90; 1991 sample, N = 101; 2000 sample, N = 99). Analysis 2 compared two samples of older and younger adults, each separated by a 9-year interval (Older Adults: 1991 sample, N = 93; 2000 sample, N = 91 and Younger Adults: 1991 sample, N = 131; 2000 sample, N = 147). Participants completed a questionnaire containing five, internally consistent scales assessing multiple dimensions of mental health attitudes (Openness, Biases, Range of Knowledge, Breadth, Help Seeking Attitudes). Analyses suggested that the 1991 and 2000 samples of older adults had more positive attitudes than did the 1977 sample. However, a sustained trend for more positive attitudes beyond 1991 was not seen. In fact, no differences existed between 1991 and 2000 samples with exception of two. Older and younger adults together had lower Biases and Breadth scores in 2000 than in 1991. Age effects, gender effects, and interactions were …
Date: August 2001
Creator: Currin, James B.
Object Type: Thesis or Dissertation
System: The UNT Digital Library