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A Place to Call Home: A Study of the Self-Segregated Community of Tatums, Oklahoma, 1894-1970 (open access)

A Place to Call Home: A Study of the Self-Segregated Community of Tatums, Oklahoma, 1894-1970

This study examines Tatums, Oklahoma, under the assumption that the historically black towns (HBT) developed as a response to conditions in the South. This community provides a rich example of the apparent anomalies that the environment of self-segregation created. Despite the widespread violence of the Klan, the residents of the HBTs were not the targets of lynching or mob violence. During the years after World War II, Tatums residents enjoyed the greatest prosperity. The final chapter looks at the battle Tatums' residents fought to keep their school from being closed after the state of Oklahoma began to enforce the Brown v. Board of Education decisions in the 1960s. Their solidarity during the desegregation transition remained powerful enough for them to negotiate compromises regarding the fair treatment of their children in a world that was integrating around them.
Date: August 2005
Creator: Ragsdale, Rhonda M.
System: The UNT Digital Library
Planning techniques for agent based 3D animations. (open access)

Planning techniques for agent based 3D animations.

The design of autonomous agents capable of performing a given goal in a 3D domain continues to be a challenge for computer animated story generation systems. We present a novel prototype which consists of a 3D engine and a planner for a simple virtual world. We incorporate the 2D planner into the 3D engine to provide 3D animations. Based on the plan, the 3D world is created and the objects are positioned. Then the plan is linearized into simpler actions for object animation and rendered via the 3D engine. We use JINNI3D as the engine and WARPLAN-C as the planner for the above-mentioned prototype. The user can interact with the system using a simple natural language interface. The interface consists of a shallow parser, which is capable of identifying a set of predefined basic commands. The command given by the user is considered as the goal for the planner. The resulting plan is created and rendered in 3D. The overall system is comparable to a character based interactive story generation system except that it is limited to the predefined 3D environment.
Date: December 2005
Creator: Kandaswamy, Balasubramanian
System: The UNT Digital Library

Positive and Negative Affect: Differential Impact of Optimism, Pessimism, and Coping in People Living with HIV/AIDS

Access: Use of this item is restricted to the UNT Community
People living with HIV/AIDS (PLH) struggle with depression. Recent research suggests that depression affects medical regimen adherence, disease progression, and risky sexual behaviors. The present study uses a stress and coping theory viewing HIV-related stigma and physical symptoms as stressors in PLH. Results suggest whereas symptoms and stigma consistently predict negative affect, positive affect, and overall depression, the role of optimism, pessimism, active coping, denial, and behavioral disengagement is not as clear. Pessimism and denial predict negative affect and depression. Optimism and behavioral disengagement predict depression and positive affect. Active coping only predicts positive affect. Focusing on positive and negative affect as distinct components that contribute to overall depression may help researchers develop interventions more effectively.
Date: August 2005
Creator: Ranucci, Melissa B.
System: The UNT Digital Library
The power of teams: Do self-managing work teams influence managers' perceptions of potency? (open access)

The power of teams: Do self-managing work teams influence managers' perceptions of potency?

The present study examined the perceptions of teams and managers on team potency levels as a function of stage of team development. Drawing from the power and influence literature, potency was established as a means by which to assess team's internal dynamics. Stage of team development was separated into four categories including pseudo, potential, real and high performance teams. Archival data included 45 teams and managers gathered from the manufacturing and service industries. Results indicated a significant linear relationship between team perceptions of team potency and stage of team development. Additionally, potency perceptions of teams significantly differentiated between the four stages of team development. Manager perceptions of team potency produced non-significant results. Possible explanations of the results as well as implications for practice and future research are provided.
Date: December 2005
Creator: Hass, Nicolette P.
System: The UNT Digital Library
Present tense marking as a synopsis of Southern American English: Plural verbal -s and zero 3rd singular. (open access)

Present tense marking as a synopsis of Southern American English: Plural verbal -s and zero 3rd singular.

This thesis explores the evolution plural verbal -s ("People thinks he is guilty") and zero 3rd singular ("He think he is guilty") in data from two sources on Southern English: The Linguistic Atlas of the Gulf States (LAGS) and The Linguistic Atlas of the Middle and South Atlantic States (LAMSAS). The research questions that underlie this study consider (1) the demographic association of plural verbal -s and zero 3rd singular, (2) the maintenance of each form, (3) the constraints on their use, and (4) the origins of -s variability. The atlas data suggest the following for plural verbal -s: (1) it has a British source, (2) it was present in both African American Vernacular English (AAVE) and early Southern White English (SWE), and (3) there were different grammatical constraints on its use in AAVE and SWE. Data for zero 3rd singular -s suggest this form (1) did not have a British source and (2) that it has historically been an AAVE feature.
Date: May 2005
Creator: Aguilar, Amanda G.
System: The UNT Digital Library
Private Property in America: Land Use and the Ethics of Owning Land (open access)

Private Property in America: Land Use and the Ethics of Owning Land

Private property in the United States arose out of a tradition that emphasized the individual freedom to control holdings without interference from governmental influences. A sharp distinction between society as a whole and individual rights isolated ownership of private property from a notion of the common good. This dualistic framework excludes the possibility for forms of property that do not fall completely into either category. Property ownership attitudes are central to issues that often divide environmentalists and landowners. Property rights must be put in the context to understand the divergence between landowner attitudes and provisions made when the institution of private property was created. Finally, land itself as a type of property should be considered ethically distinct from other forms of property because of the interdependencies of human and nonhuman interests that the science of ecology has revealed.
Date: December 2005
Creator: Grant, Elizabeth Michelle
System: The UNT Digital Library
A Question of Queerness: Case Studies of Contemporary American Television (open access)

A Question of Queerness: Case Studies of Contemporary American Television

This project utilizes a case study approach to explore the various ways in which the portrayals of gay people have changed on American television. Three contemporary programs - Will & Grace, Queer Eye for the Straight Guy and The L Word - are examined as examples of how far American television has progressed in terms of treating gay people with respect. Whether those shows move beyond merely presenting gay characters and into a level of actively challenging mainstream views on gay people is also examined. Findings suggest different factors affect the ability of the individual programs to test said views - including the genres to which each belongs, and their presence on network television (Will & Grace), basic cable (Queer Eye for the Straight Guy) or premium cable (The L Word). While all three programs show some tendencies toward queerness, they also take steps toward negotiating with mainstream culture, indicating that complete queerness may be an unattainable goal on American television.
Date: December 2005
Creator: Bentley, Jon Alexander
System: The UNT Digital Library
Rainfall-runoff changes due to urbanization: a comparison of different spatial resolutions for lumped surface water hydrology models using HEC-HMS. (open access)

Rainfall-runoff changes due to urbanization: a comparison of different spatial resolutions for lumped surface water hydrology models using HEC-HMS.

Hydrologic models were used to examine the effects of land cover change on the flow regime of a watershed located in North-Central Texas. Additionally, the effect of spatial resolution was examined by conducting the simulations using sub-watersheds of different sizes to account for the watershed. Using the Army Corps of Engineers, Hydrologic Engineering Center Hydrologic Modeling System (HEC-HMS), two different modeling methods were evaluated at the different sub-watershed resolutions for four rainfall events. Calibration results indicate using the smaller spatial resolutions improves the model results. Different scenarios for land cover change were evaluated for all resolutions using both models. As land cover change increased, the amount of flow from the watershed increased.
Date: December 2005
Creator: Redfearn, Howard Daniel
System: The UNT Digital Library
The Recorder Tutors in 't Uitnement Kabinet (open access)

The Recorder Tutors in 't Uitnement Kabinet

Paulus Matthysz, a prominent music printer in Amsterdam during the seventeenth century, published Jacob van Eyck's Der Fluyten Lust-hof and a collection entitled 't Uitnement Kabinet. Three extant copies of Lust-hof include a tutor Vertoninge...op de Handt-fluit, presumably by Matthysz, and a tutor by Gerband van Blanckenburgh, Onderwyzinge...op deHandt-Fluyt. Their content is not correlated with Lust-hof, and they were presumably designed for inclusion in the Kabinet II. Confusion over the tutors' conception has led to published misinformation jeopardizing their historical worth. The casual generalizations regarding the two tutors can be refuted by reestablishing the interrelationship between the tutors and the two collections. This paper employs a comprehensive study into their origins in order to rectify how the tutors are referenced in the twenty-first century.
Date: August 2005
Creator: Carpenter, Jennifer
System: The UNT Digital Library
REEL NAZIS a propaganda history (open access)

REEL NAZIS a propaganda history

This thesis film is an overview of Nazi Germany, primarily told through the use of their own propaganda images, and structured in such a way as to make the viewer question what they think they know about the past, present, and future. This paper is a discussion of the process that went into making the film and some of the ideas connected to it that could not be brought out in the documentary.
Date: December 2005
Creator: Lambert, James K.
System: The UNT Digital Library
Relationship between the amount of parental supervision time and child delinquency. (open access)

Relationship between the amount of parental supervision time and child delinquency.

This study assesses the relationship between parental supervision and children's delinquency. Data used in this study came from interviews with 99 parents from the Denton city area of Texas in 2003. A probability sample of 53 was contacted by way of randomly selected residential telephone numbers. In addition, 46 parents were non-randomly selected. Parents were asked about how much time they spent supervising and engaging in activities with their children and whether or not the oldest child exhibited delinquent behavior such as fighting, playing hooky, and being sent to detention or the principal's office. The study found that the more time parents spend in supervision and in engaging activities with their daughters, the less likely these children were to exhibit delinquent behavior. This was consistent with previous research. However, the level of delinquency of boys increased with the increase in the amount of parental supervision time, especially by fathers.
Date: May 2005
Creator: Bessa, Yawo Agbessi
System: The UNT Digital Library
Relationship of the PDI Employment Inventory Scales to Criminal Behaviors (open access)

Relationship of the PDI Employment Inventory Scales to Criminal Behaviors

This study investigated the relationship of the Personnel Decisions International Employment Inventory scales to criminal behavior by using 796 offenders with criminal records in the Texas Department of Corrections and a random sample of 893 non-offender job applicants. The hypothesis that offenders would score lower in integrity scores than non-offenders only gained mixed support, but consistent evidence showed that there were no mean differences between property offenders and other offenders. The implications of the results for future study were discussed.
Date: August 2005
Creator: Lin, Yue
System: The UNT Digital Library
Religiosity and spirituality in African American children. (open access)

Religiosity and spirituality in African American children.

An exploratory study was conducted to augment the current literature on religiosity and spirituality by identifying and systematically measuring the salient variables and underlying constructs regarding spirituality and religion in African American families and their children between the ages of 7 to 12. The study examined psychosocial correlates, such as self-esteem and ethnic identity, and their impact on religiosity and spirituality. This study sought to validate the Age-Universal I/E Scale for use with African American children occurred with this study and pilot the African American Children's Ethnic Identity Scale (ACHEIDS). Through qualitative and quantitative research this study found multiple correlations associated with religion, spirituality, age, gender, aspects of self-esteem, and ethnic identity. Regression analyses were also conducted to identify predictive variables associated with the I/E.
Date: May 2005
Creator: Miesse, Colette A.
System: The UNT Digital Library
Religious Engagement and Social Capital in the Islamic Context (open access)

Religious Engagement and Social Capital in the Islamic Context

Social capital research has traditionally been conducted in western and Christian settings as a precursor of changes such as democratization and development. This paper focuses on Islamic religious engagement and its potential to foster social capital. The model presented here is designed to suggest whether the Islam's influence occurs through doctrinal channels, or through Islam's capacity to organize social structures. The analysis conducted is a linear regression model with measures of social capital as dependent variables and measures of religious engagement as independent variables. The analysis is conducted on data from the fourth wave of the World Values Survey. Results suggest that religious engagement and social capital have both belief and behavioral elements that should be treated as separate entities in quantitative research.
Date: May 2005
Creator: Brigaitis, Peter
System: The UNT Digital Library
The Reluctant Partisan: Nathanael Greene's Southern Campaigns, 1780-1783 (open access)

The Reluctant Partisan: Nathanael Greene's Southern Campaigns, 1780-1783

Nathanael Greene spent the first five years of the American Revolution serving as a line and field officer in the Continental Army and developed a nuanced revolutionary strategy based on preserving the Continental Army and a belief that all forces should be long-service national troops. He carried these views with him to his command in the southern theater but developed a partisan approach due to problems he faced in the region. Greene effectively kept his army supplied to such an extent that it remained in the field to oppose the British with very little outside assistance. He reluctantly utilized a partisan strategy while simultaneously arguing for the creation of a permanent Continental force for the region.
Date: May 2005
Creator: Liles, Justin S.
System: The UNT Digital Library
RevealingReveilingReveling (open access)

RevealingReveilingReveling

This thesis explores the possibilities of communication in the context of a sound composition. In RevealingReveilingReveling, a series of questions concerning communication posed by John Cage, coupled with an extension of those questions posed by myself, are set to recorded sounds-in-the-world. The intention is to create a greater awareness of that which there is to listen in our world. The first part of this essay discusses influences of philosophical thought during the process of composing RevealingReveilingReveling. Two distinct twentieth-century thinkers that have impacted the creation of this piece and their areas of thought are Martin Heidegger: language and Being; and John Cage: sound, silence, and awareness. The second part of the essay is a structural analysis of the piece, discussing the recording of Cage's questions, sounds-in-the-world, sound-manipulation techniques and thought-processes, as well as periodic mention the aesthetic decisions made.
Date: May 2005
Creator: Colaruotolo, John
System: The UNT Digital Library

Risk Assessment of Aviation Security and Evaluation of Aviation Security Policies

Access: Use of this item is restricted to the UNT Community
Comprising many airplanes, airports, aircrew, and employees, aviation industry is a large sector that is very vulnerable to attacks, whether it is from terrorists or criminals. Aviation history is fraught with examples of airport bombings, hijackings, and sabotage terrorist attacks. The most destructive of which is the tragedy of September 11, 2001, the cornerstone of today's aviation security policies. This study uses risk assessment tools to determine the dimensions of danger and threats against the aviation industry and addresses how vulnerable the aviation sector is. After vulnerabilities and threats are examined, possible impacts of attacks against the aviation security are discussed. This study also explores the pre and post September 11 policies that governments and policy makers develop to reduce risks in aviation sector. In addition, it discusses weaknesses and strengths of these policies which surfaced during the implementations. Finally, this study proposes some recommendations based on vulnerabilities and threats of aviation security.
Date: August 2005
Creator: Yalcinkaya, Ramazan
System: The UNT Digital Library
Risk Factors for Vascular Dementia (open access)

Risk Factors for Vascular Dementia

Dementia is a devastating disorder that commonly affects people over the age of 65. Alzheimer's disease and vascular dementia are the most common forms of dementias. A number of studies have implicated cardiovascular risks as important factors in the development of dementia. These risks include high-risk behaviors such as smoking and risks related at least partially to health behaviors such as diet and exercise. This study examines a group of cardiovascular risk factors, as defined by the Framingham study, to ascertain if they are predictors of dementia. A retrospective chart review of 481consecutive patients seen in a geriatric medicine clinic produced a sample of 177 individuals diagnosed with dementia and 304 individuals without a dementia diagnosis. Relative risk ratio (RRR) results indicate that a history of hypertension (RRR= 1.80, p = .009) and a history of hypercholesterolemia (RRR = 1.85, p = .016) are significant predictors of Alzheimer's disease. A history of tobacco use (RRR = 2.18, p = .01) is a significant predictor of vascular dementia. Stepwise regression analyses indicate that hypercholesterolemia is an independent predictor of dementia (b = -.113, p = .009) and hypercholesterolemia (b = -.104, p = .018) and hypertension (b = -.094, p = …
Date: May 2005
Creator: Cornett, Patricia F.
System: The UNT Digital Library
The Role of Motivation in Second Language Pronunciation (open access)

The Role of Motivation in Second Language Pronunciation

This thesis investigates the phonological ability of exceptional second language (L2) learners of English and their levels of motivation. This study is the first of its kind to do a large-scale examination of L2 learners whose first languages (L1s) do not belong to the same Indo-European language family as English. Fifteen non-native speakers (NNSs) of English filled out a questionnaire and produced four speech samples, including a picture description task, paragraph reading task, sentence reading and word reading task. Fifteen native speaker (NS) controls also produced the same speech samples. Four NSs judged all participants' accents. Six NNSs scored as highly as NSs on some of the speech segments using a 2-standard deviation (SD) cut-off point. There was no significant correlation between their scores on pronunciation and motivation.
Date: August 2005
Creator: Wen, Tao-Chih
System: The UNT Digital Library
Saturation and foaming of thermoplastic nanocomposites using supercritical CO2. (open access)

Saturation and foaming of thermoplastic nanocomposites using supercritical CO2.

Polystyrene (PS) nanocomposite foams were prepared using supercritical fluid (SCF) CO2 as a solvent and blowing agent. PS was first in-situ polymerized with a range of concentrations of montmorillonite layered silicate (MLS). The polymerized samples were then compression molded into 1 to 2mm thick laminates. The laminates were foamed in a batch supercritical CO2 process at various temperatures and pressures from 60°-85°C and 7.6-12MPa. The resulting foams were analyzed by scanning electron microscopy to determine effect of MLS on cellular morphology. Differential scanning calorimetry was used to determine the impact of nanocomposite microstructure on glass transition of the foamed polymer. X-ray diffraction spectra suggested that the PS/MLS composite had an intercalated structure at both the 1% and 3% mixtures, and that the intercalation may be enhanced by the foaming process.
Date: May 2005
Creator: Strauss, William C.
System: The UNT Digital Library
Shaping Cows' Approach to Humans Using Positive and Negative Reinforcement (open access)

Shaping Cows' Approach to Humans Using Positive and Negative Reinforcement

Negative reinforcement can be a powerful tool for behavior analysts, yet it is often overlooked as a treatment method. Pryor (1999) outlines a method for approaching a "timid" animal using a combination of negative reinforcement and positive reinforcement. When the animal stands still, the human operates a clicker, and then retreats from the animal. Gradually, the human moves closer to the animal through the clicking and retreating shaping process. Once the human is standing close enough, food may be offered as a positive reinforcer, and the negative reinforcer is canceled out. The purpose of this study was to experimentally demonstrate the click-retreat technique with cows. A multiple-baseline design across subjects was used to test this technique. Results show that the click and retreat technique was effective. Results are discussed in terms of the difference between the click-retreat technique and systematic desensitization.
Date: May 2005
Creator: Morehead, Melissa L.
System: The UNT Digital Library

Shaping: From art to science.

Access: Use of this item is restricted to the UNT Community
This study evaluated the effectiveness of a procedure for teaching a caregiver to shape vocal language in a young child with autism. A multiple baseline design was employed to assess caregiver use of shaping procedures, child vocal language progress, and the social validity of the procedures. Following baseline and introductory sessions, the coach and caregiver reviewed video from the previous session and the coach gave descriptive feedback to the caregiver about her performance. Following the review of the videotaped segment, procedures to increase skills were selected and practiced. Rates of responsive opportunity arrangement, model presentation, responsive model delivery, and responsive event delivery, as well as the child's rate of requests, vocalizations, diversity of vocalizations, and social validity were measured. Data suggested that the procedures effectively taught the skill of shaping to a caregiver, which in turn seemed to produce increases in the child's vocal responding.
Date: August 2005
Creator: Schooley, Kathryne Balch
System: The UNT Digital Library
Shoreline Erosion at Mad Island Marsh Preserve, Matagorda County, Texas (open access)

Shoreline Erosion at Mad Island Marsh Preserve, Matagorda County, Texas

The Nature Conservancy of Texas (TNC) is concerned with the amount of shoreline erosion taking place at its Mad Island Marsh Preserve (MIMP), located in Matagorda Bay, Texas. The MIMP is a 7,100 acre nature preserve that borders the Gulf Intracoastal Waterway and is eroded by waves generated by barge traffic. TNC is concerned that erosion will shorten Mad Island Bayou which may increase the salinity of Mad Island Lake; with detrimental effects on lake and marsh habitats. This study uses GPS technology to map the current shoreline and GIS to determine ten year erosion rates (1995 - 2005). Results show that erosion is occurring at various rates along the shoreline as well as along the oxbow bend in Mad Island Bayou.
Date: August 2005
Creator: Mangham, Webster
System: The UNT Digital Library

Stories: Spain, Lovers and Crazy Old Ladies

Access: Use of this item is restricted to the UNT Community
Stories: Spain, Lovers and Crazy Old Ladies is a collection of short stories about relationships, traumas, memories and change.
Date: May 2005
Creator: Franco, Sally
System: The UNT Digital Library