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Well-Being of Gifted Students Following Participation in an Early-College-Entrance Program (open access)

Well-Being of Gifted Students Following Participation in an Early-College-Entrance Program

The concepts of well-being and life satisfaction are explored in this study of the experiences and psychological traits of highly-gifted students who have been radically accelerated into an early-college-entrance program. The study was conducted after participation in the early-college-entrance program. The primary focus of the study is on personal well-being and life satisfaction including the variables of subjective well-being, efficacy, and the dispositional traits of cheerfulness, seriousness, and bad mood. These variables are gathered as the initial phase of a longitudinal study of the early-college entrants' personal and professional experiences, their life satisfaction, and dispositions. The subjects for this study were participants in the Texas Academy of Math and Science (TAMS). TAMS is a state run early-college-entrance program at the University of North Texas in Denton.
Date: December 2006
Creator: Boazman, Janette Kay
System: The UNT Digital Library

Evaluation of dynamic and static electrical characteristics for the DY8 and YI8 process gallium diodes in comparison to the DI8 process boron diodes.

Access: Use of this item is restricted to the UNT Community
A rectifier is an electrical device, comprising one or more semiconductor devices arranged for converting alternating current to direct current by blocking the negative or positive portion of the waveform. The purpose of this study would be to evaluate dynamic and static electrical characteristics of rectifier chips fabricated with (a) DY8 process and (b) YI8 process and compare them with the existing DI8 process rectifiers. These new rectifiers were tested to compare their performance to meet or exceed requirements of lower forward voltages, leakage currents, reverse recovery time, and greater sustainability at higher temperatures compared to diodes manufactured using boron as base (DI8 process diodes) for similar input variables.
Date: December 2006
Creator: Dhoopati, Swathi
System: The UNT Digital Library
Iconographic Analysis of the Armadillo and Cosmic Imagery within Art Associated with the Armadillo World Headquarters, 1970 - 1980 (open access)

Iconographic Analysis of the Armadillo and Cosmic Imagery within Art Associated with the Armadillo World Headquarters, 1970 - 1980

This thesis draws upon recent, art historical scholarship in iconography and semiotics to identify and analyze key images in an iconographic program associated with murals, paintings, and posters related to the Austin, Texas music venue, the Armadillo World Headquarters, 1970-1980. Resources include South Austin Museum of Popular Culture, the Center for American History at the University of Texas, Austin, personal communications, and publications concerning the artists, music and history of Austin and the Armadillo World Headquarters. There are five chapters as follows: Introduction, History of the Armadillo World Headquarters, Analysis of the Armadillo Mural and Freddie King Painting, Analysis of Posters for the Grand Opening and the Michael Murphey Cosmic Cowboy Concert, and Conclusion.
Date: December 2006
Creator: Richmond, Jennifer Lynn
System: The UNT Digital Library
The Impact of a Father and Son on Texas: Isaac Van Zandt and Khleber Miller Van Zandt (open access)

The Impact of a Father and Son on Texas: Isaac Van Zandt and Khleber Miller Van Zandt

Isaac Van Zandt and his son Khleber Miller Van Zandt were instrumental figures in the growth of Texas and the development of the town of Fort Worth, Texas. Isaac Van Zandt was one of the main members of the delegation from Texas to the United States who negotiated for annexation. He also played a major part in the Texas Constitutional Convention of 1845 and made a run for governor before his death in 1847. His son, Khleber Miller Van Zandt was a Confederate soldier and businessman who saw something in the outpost of Fort Worth that was worth developing. Along with an influential group of other businessmen he was a part of every major development that occurred in Fort Worth until his death in 1930. Both Van Zandts' roles are discussed and the importance of their actions is brought to light.
Date: December 2006
Creator: Cranz, Jane Sloan
System: The UNT Digital Library
Developing Capacity: The IMF's Impact on State Capacity (open access)

Developing Capacity: The IMF's Impact on State Capacity

The purpose of this thesis is to examine the impact of International Monetary Fund (IMF) loans since the adoption of the governance mandate on overall government capability. The study will explore whether the presence of IMF loans in developing countries enhances state capacity. Administrative capacity is of particular importance because it is a requisite for the integration of state and society in the national political arena and encourages joint involvement of government and citizenry in overall representation of societal interests. The model designed to test the two primary hypotheses is comprised of a simultaneous system of equations. Despite criticisms of IMF conditionality arrangements, it appears that these programs are largely effective at increasing administrative capacity, an important factor in achieving economic growth and national ownership of IMF development programs.
Date: December 2006
Creator: Harper, Christine
System: The UNT Digital Library
Contextualizing the Law: Sentencing Decisions of Sexual Assault Cases of Dallas County, 1999-2005 (open access)

Contextualizing the Law: Sentencing Decisions of Sexual Assault Cases of Dallas County, 1999-2005

The incidence of sexual assault inundates the courts with many cases each year. Given the unique nature of the crime, judges and juries are faced with an array of different scenarios to which they are required to make fair, justifiable and consistent decisions. I examine child sexual assault cases of Dallas County 1999-2005, I look at both legal and extralegal factors including case characteristics, institutional characteristics and characteristics of the defendants and the victims. First, I examine the impact of the independent variables on sentence length using regression analysis to determine influences on sentencing for judges and juries. Second, I examine the same factors using Probit analysis to determine which characteristics make a life sentence more probable for those decision-makers.
Date: December 2006
Creator: Greening, Megan
System: The UNT Digital Library
The Effects of Tests and Praise on Children's Hear-write and See-say Responses. (open access)

The Effects of Tests and Praise on Children's Hear-write and See-say Responses.

Four elementary school children were tested on 120 words containing the short e (e.g., ten, pen) and short a (e.g., tan, pan) sounds. Words were tested in the hear-write (H/W) and see-say (S/S) channels. No programmed consequences were scheduled during baseline (BL) tests 1-3. After BL, an error analysis categorized words based on channel error and topography of error. Praise was delivered during tests 4-6 for correct responses. Children's responses were variable within channel and across channels for a majority of words. By the end of the praise phase, there was a decrease in the number of words with errors, for all children in their error word group. Error topographies began to stabilize for some words during praise.
Date: December 2006
Creator: Edwards, Bobbie
System: The UNT Digital Library
Grid-based Coordinated Routing in Wireless Sensor Networks (open access)

Grid-based Coordinated Routing in Wireless Sensor Networks

Wireless sensor networks are battery-powered ad-hoc networks in which sensor nodes that are scattered over a region connect to each other and form multi-hop networks. These nodes are equipped with sensors such as temperature sensors, pressure sensors, and light sensors and can be queried to get the corresponding values for analysis. However, since they are battery operated, care has to be taken so that these nodes use energy efficiently. One of the areas in sensor networks where an energy analysis can be done is routing. This work explores grid-based coordinated routing in wireless sensor networks and compares the energy available in the network over time for different grid sizes.
Date: December 2006
Creator: Sawant, Uttara
System: The UNT Digital Library
Energy-Aware Time Synchronization in Wireless Sensor Networks (open access)

Energy-Aware Time Synchronization in Wireless Sensor Networks

I present a time synchronization algorithm for wireless sensor networks that aims to conserve sensor battery power. The proposed method creates a hierarchical tree by flooding the sensor network from a designated source point. It then uses a hybrid algorithm derived from the timing-sync protocol for sensor networks (TSPN) and the reference broadcast synchronization method (RBS) to periodically synchronize sensor clocks by minimizing energy consumption. In multi-hop ad-hoc networks, a depleted sensor will drop information from all other sensors that route data through it, decreasing the physical area being monitored by the network. The proposed method uses several techniques and thresholds to maintain network connectivity. A new root sensor is chosen when the current one's battery power decreases to a designated value. I implement this new synchronization technique using Matlab and show that it can provide significant power savings over both TPSN and RBS.
Date: December 2006
Creator: Saravanos, Yanos
System: The UNT Digital Library

Animals That Die

Access: Use of this item is restricted to the UNT Community
The thesis has two parts. Part I is a critical essay entitled "Lessons Under the Amfalula." Part II is the collection of poems entitled "Animals That Die."
Date: December 2006
Creator: Campbell, Susan Maxwell
System: The UNT Digital Library

Between the Waves: Truth-Telling, Feminism, and Silence in the Modernist Era Poetics of Laura Riding Jackson and Muriel Rukeyser

Access: Use of this item is restricted to the UNT Community
This paper presents the lives and early feminist works of two modernist era poets, Laura Riding Jackson and Muriel Rukeyser. Despite differences of style, the two poets shared a common theme of essentialist feminism before its popularization by 1950s and 60s second wave feminists. The two poets also endured periods of poetic silence or self censorship which can be attributed to modernism, McCarthyism, and rising conservatism. Analysis of their poems helps to remedy their exclusion from the common canon.
Date: December 2006
Creator: Cain, Christina
System: The UNT Digital Library
The status of democratization and human rights of the Middle East. (open access)

The status of democratization and human rights of the Middle East.

The end of the Cold War and the collapse of communism in the Soviet Union and Eastern Europe have been accompanied by the spread of democracy, advancement in respect for human rights, and the introduction of market reforms in different parts of the world. The Middle Eastern region has not been an exception to this trend, where, in response to the mounting economic crisis and domestic public pressure, several governments introduced democratic and economic reforms. This thesis investigates the trends in the distribution of political authority among the Middle Eastern countries and the progress that these countries have made on the path of democracy and respect of human rights. Also explored are the various processes of political liberalization in Middle East states, and explanations posed as to why certain types of regimes have allowed for conditions conducive for reform and others have not.
Date: December 2006
Creator: Spinks, Brandon Todd
System: The UNT Digital Library
CLUE: A Cluster Evaluation Tool (open access)

CLUE: A Cluster Evaluation Tool

Modern high performance computing is dependent on parallel processing systems. Most current benchmarks reveal only the high level computational throughput metrics, which may be sufficient for single processor systems, but can lead to a misrepresentation of true system capability for parallel systems. A new benchmark is therefore proposed. CLUE (Cluster Evaluator) uses a cellular automata algorithm to evaluate the scalability of parallel processing machines. The benchmark also uses algorithmic variations to evaluate individual system components' impact on the overall serial fraction and efficiency. CLUE is not a replacement for other performance-centric benchmarks, but rather shows the scalability of a system and provides metrics to reveal where one can improve overall performance. CLUE is a new benchmark which demonstrates a better comparison among different parallel systems than existing benchmarks and can diagnose where a particular parallel system can be optimized.
Date: December 2006
Creator: Parker, Brandon S.
System: The UNT Digital Library
Study of lead sorption on magnetite at high temperatures. (open access)

Study of lead sorption on magnetite at high temperatures.

Lead's uptake on magnetite has been quantitatively evaluated in the present study at a temperature of 200°C and pH of 8.5 with lead concentrations ranging from 5 ppm to175 ppm by equilibrium adsorption isotherms. The pH independent sorption behavior suggested lead sorption due to pH independent permanent charge through weak electrostatic, non-specific attraction where cations are sorbed on the cation exchange sites. The permanent negative charge could be a consequence of lead substitution which is supported by increase in the lattice parameter values from the X-ray diffraction (XRD) results. Differential scanning calorimetry (DSC/TGA) results showed an increase of exothermic (magnetite to maghemite transformation) peak indicating substitution of lead ions due to which there is retardation in the phase transformation. Presence of outer sphere complexes and physical sorption is further supported by Fourier transformed infrared spectroscopy (FTIR). None of the results suggested chemisorption of lead on magnetite.
Date: December 2006
Creator: Paliwal, Vaishali
System: The UNT Digital Library
More connections, less connection: An examination of the effects of computer-mediated communication on relationships. (open access)

More connections, less connection: An examination of the effects of computer-mediated communication on relationships.

The impact of computer-mediated communication (CMC) on relational behavior is a topic of increasing interest to communication scholars (McQuillen, 2003; Tidwell & Walther, 2002). One of the most interesting issues that CMC raises concerns the impact of CMC on relational maintenance and development. Using dialectical theory, social exchange theory, social information processing theory, and the hyperpersonal perspective as theoretical frameworks, this study used quantitative and qualitative analyses to identity potential effects of CMC on relationships. Study 1 (n=317) examined the effects of CMC on relational closeness, satisfaction, and social support. Study 2 (n=196) explored the reasons individuals provide for privileging computer-mediated forms of communication, and the perceived effects of using CMC in relational communication. Results indicated that quality of CMC predicted increased perceptions of social support and relationship satisfaction. Results further suggested that CMC enabled participants to manage more effectively relational tensions of autonomy-connection and openness-closedness. Specifically, individuals used CMC to retain higher levels of conversational control, and to maintain greater numbers of relationships with decreased levels of investment. This paper concludes with a discussion of implications and directions for future research.
Date: December 2006
Creator: McGlynn, Joseph
System: The UNT Digital Library
Working Lifestyles and Sleepless Nights: The Role of Work in Patient Explanatory Models of Insomnia (open access)

Working Lifestyles and Sleepless Nights: The Role of Work in Patient Explanatory Models of Insomnia

Interviews conducted with patients receiving treatment for insomnia at one of two sleep medicine clinics, located in Texas and Oregon, suggest that work is a pivotal influence in shaping the respondents' interpretations, explanations and behaviors relating to insomnia. "Work" includes such facets as the nature of one's occupation, the associated volume or amount of work required, mental demands related to work, work schedules and work-related stress. Specifically, results reveal: 1) nearly 60% of the sample identify work as a primary or perpetuating cause of their insomnia, 2) respondents often report work as influencing the nature and importance of their sleep, 3) sleep is considered a problem, and medical intervention is solicited, after work is affected, and 4) work performance is a major consideration in determining treatment efficacy and compliance.
Date: December 2006
Creator: McClellen, Dana L.
System: The UNT Digital Library
Compact Operators and the Schrödinger Equation (open access)

Compact Operators and the Schrödinger Equation

In this thesis I look at the theory of compact operators in a general Hilbert space, as well as the inverse of the Hamiltonian operator in the specific case of L2[a,b]. I show that this inverse is a compact, positive, and bounded linear operator. Also the eigenfunctions of this operator form a basis for the space of continuous functions as a subspace of L2[a,b]. A numerical method is proposed to solve for these eigenfunctions when the Hamiltonian is considered as an operator on Rn. The paper finishes with a discussion of examples of Schrödinger equations and the solutions.
Date: December 2006
Creator: Kazemi, Parimah
System: The UNT Digital Library
Institutional Misconduct Among Gang Related and Non-Gang Related Institutionalized Delinquents (open access)

Institutional Misconduct Among Gang Related and Non-Gang Related Institutionalized Delinquents

The problems that gang members create within adult correctional facilities continue to receive attention in the literature. Gang members within juvenile institutions have received far less attention from researchers, and misconduct of these juveniles, both serious and non-serious, is relatively unexplored. This study explored the institutional misconduct of 4,309 male delinquents released from the Texas Youth Commission. Youths younger at commitment, those with a higher TYC risk score, and those youths with emotional problems were found more likely to commit both serious and non-serious institutional misconduct, regardless of gang membership. This thesis concludes with suggestions for additional research on gang members within juvenile institutions and the relationship of gang membership to institutional misconduct.
Date: December 2006
Creator: Kawucha, Soraya K.
System: The UNT Digital Library
An Approach Towards Self-Supervised Classification Using Cyc (open access)

An Approach Towards Self-Supervised Classification Using Cyc

Due to the long duration required to perform manual knowledge entry by human knowledge engineers it is desirable to find methods to automatically acquire knowledge about the world by accessing online information. In this work I examine using the Cyc ontology to guide the creation of Naïve Bayes classifiers to provide knowledge about items described in Wikipedia articles. Given an initial set of Wikipedia articles the system uses the ontology to create positive and negative training sets for the classifiers in each category. The order in which classifiers are generated and used to test articles is also guided by the ontology. The research conducted shows that a system can be created that utilizes statistical text classification methods to extract information from an ad-hoc generated information source like Wikipedia for use in a formal semantic ontology like Cyc. Benefits and limitations of the system are discussed along with future work.
Date: December 2006
Creator: Coursey, Kino High
System: The UNT Digital Library
Comparative Study of RSS-Based Collaborative Localization Methods in Wireless Sensor Networks (open access)

Comparative Study of RSS-Based Collaborative Localization Methods in Wireless Sensor Networks

In this thesis two collaborative localization techniques are studied: multidimensional scaling (MDS) and maximum likelihood estimator (MLE). A synthesis of a new location estimation method through a serial integration of these two techniques, such that an estimate is first obtained using MDS and then MLE is employed to fine-tune the MDS solution, was the subject of this research using various simulation and experimental studies. In the simulations, important issues including the effects of sensor node density, reference node density and different deployment strategies of reference nodes were addressed. In the experimental study, the path loss model of indoor environments is developed by determining the environment-specific parameters from the experimental measurement data. Then, the empirical path loss model is employed in the analysis and simulation study of the performance of collaborative localization techniques.
Date: December 2006
Creator: Koneru, Avanthi
System: The UNT Digital Library
Room 2046: A Political Reading of Wong Kar-Wai's Chow-Mo Wan Trilogy through Narrative Elements and Mise-en-scene (open access)

Room 2046: A Political Reading of Wong Kar-Wai's Chow-Mo Wan Trilogy through Narrative Elements and Mise-en-scene

As ownership of Hong Kong changed hands from the United Kingdom to the People's Republic of China in 1997, citizens and filmmakers of the city became highly aware of the political environment. Film director Wong Kar-Wai creates visually stimulating films that express the anxieties and frustrations of the citizens of Hong Kong during this period. This study provides a political reading of Days of Being Wild (1991), In the Mood for Love (2000), and 2046 (2004) through analyzing various story elements and details within the mise-en-scene. Story elements include setting, dialogue, character relationships, character identities, thematic motifs, musical references, numerology, and genre manipulation. Wong also uses details within the films' mise-en-scene, such as props and color, to express political frustrations. To provide color interpretations, various traditional aesthetic guidelines, such as those prescribed by Taoism, Cantonese and Beijing opera, and feng shui, are used to read the films' negative comments on the handover process and the governments involved. When studied together the three films illustrate how Wong Kar-Wai creates narrative and visual references to the time and atmosphere in which he works, namely pre-and-post handover Hong Kong.
Date: December 2006
Creator: Baldwin, Jillian
System: The UNT Digital Library
Foucault's Foundationless Democratic Theory (open access)

Foucault's Foundationless Democratic Theory

I examine a key shift in Michel Foucault's political philosophy from a position in which he was a staunch anti-humanist, to a final position in which he advocated not only the ability of the subject to influence his political condition, but also the individual freedoms assured by a democratic form of government. I begin by summarizing his overall critique of the post-Enlightenment West, and then explain how his observation of the Iranian Revolution served as a key turning point concerning his attitude towards the subject. Next, I elaborate on the direction of Foucault's late writings and examine how his new conceptualization of the subject leads him to embrace a democratic political system albeit free from Enlightenment philosophical foundations. I conclude by critiquing Foucault's foundationless democratic theory on the basis that it would ultimately undermine the individual freedoms and aesthetic development that he seeks to protect.
Date: December 2006
Creator: Carter, Kelly A.
System: The UNT Digital Library
Coelomic Fluid Protein Profile in Earthworms Following Bacterial Challenge. (open access)

Coelomic Fluid Protein Profile in Earthworms Following Bacterial Challenge.

Proteomic techniques were used to evaluate the protein profile of the earthworm, (Lumbricus terrestris), following a bacterial challenge. One control group received no injection; a second control group received injections of phosphate buffer solution (PBS). The experimental group received injections of PBS containing (Aeromonas hydrophila). After incubation for 12 hours at 20°C, coelomic fluid was collected from each group for analysis by 2-D electrophoresis. There were significant differences in spot appearance and density between control and experimental groups. Sixteen spots showed a two-fold increase in density and 63 showed at least a two-fold decrease in density between samples from control and bacteria-challenged earthworms, respectively, suggesting up- and down-modulation of proteins potentially involved in the earthworm's response to bacterial challenge.
Date: December 2006
Creator: Brooks, Geoffrey Lance
System: The UNT Digital Library
History of Childhood Abuse and Posttraumatic Growth's Effects on Reactions to Subsequent Traumatic Events (open access)

History of Childhood Abuse and Posttraumatic Growth's Effects on Reactions to Subsequent Traumatic Events

Previous research indicates that those with a history of abuse have an increased risk to experience subsequent traumatic events. This study utilized a convenience sample of undergraduate students to examine the reaction of those with a history of abuse to subsequent traumatic experiences. In addition, the study assessed the level of posttraumatic growth an individual experiences following childhood abuse. The level of posttraumatic growth was examined to determine if the growth allowed for participants to better handle successive traumas. Those with a history of abuse experienced higher levels of symptomology following a successive traumatic event. Results did not support the hypothesis that among those with a history of abuse, lower levels of posttraumatic growth would predict higher levels of symptoms following a later trauma. Implications and limitations of the study, as well as directions for future research are discussed.
Date: December 2006
Creator: Bezner, Stephanie K.
System: The UNT Digital Library