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Relationships Among Self-esteem, Psychological and Cognitive Flexibility, and Psychological Symptomatology (open access)

Relationships Among Self-esteem, Psychological and Cognitive Flexibility, and Psychological Symptomatology

Previous findings on the relationship between self-esteem and psychological outcomes are inconsistent. Therefore it appears that self-esteem, while related to crucial variables, does not provide a clear, direct, and comprehensive prediction of psychological symptoms. Thus, it was hypothesized that the relationship between self-esteem and symptomatology would be moderated by broader measures of how one interacts with emotional and cognitive stimuli.The purpose of this study was to examine the influence of self-esteem, psychological flexibility, and cognitive flexibility on psychological symptomatology. A sample of 82 undergraduate students at the University of North Texas completed self-report questionnaires measuring low self-esteem, psychological flexibility, measured inversely as inflexibility, cognitive flexibility, and psychological symptoms. Results of the study suggest that self-esteem (?= -0.59, p < 0.001) and flexibility (both psychological (?= 0.36, p = 0.001) and cognitive (?= 0.21, p < 0.05) are significant predictors of psychological symptoms. In other words, self-esteem is positively correlated with psychological symptoms, while psychological and cognitive flexibility are negatively correlated with psychological symptoms. Neither form of flexibility moderated the relationship between self-esteem and psychological symptoms in this sample. The findings of the current study are discussed as well as suggestions for further research related to self-esteem, psychological and cognitive flexibility, …
Date: December 2012
Creator: Al-Jabari, Rawya M.
System: The UNT Digital Library
A Comparative Analysis of Web-based Machine Translation Quality: English to French and French to English (open access)

A Comparative Analysis of Web-based Machine Translation Quality: English to French and French to English

This study offers a partial reduplication of a 2006 study by Williams, which focused primarily on the analysis of the quality of translation produced by online software, namely Yahoo!® Babelfish, Freetranslation.com, and Google Translate. Since the data for the study by Williams were collected in 2004 and the data for present study in 2012, this gives a lapse of eight years for a diachronic analysis of the differences in quality of the translations provided by these online services. At the time of the 2006 study by Williams, all three services used a rule-based translation system, but, in October 2007, however, Google Translate switched to a system that is entirely statistical in nature. Thus, the present study is also able to examine the differences in quality between contemporary statistical and rule-based approaches to machine translation.
Date: December 2012
Creator: Barnhart, Zachary
System: The UNT Digital Library
Bodies and Other Firewood (open access)

Bodies and Other Firewood

The chakra system consists of seven energetic vortexes ascending up the spine that connect to every aspect of human existence. These vortexes become blocked and unblocked through the course of a life, these openings and closings have physiological and mental repercussions. Knowledge of these physical and mental manifestations, indicate where the chakra practitioner is in need, the practitioner can then manipulate their mind and body to create a desired outcome. These manipulations are based upon physical exercises and associative meditations for the purpose of expanding the human experience. As a poem can be thought of as the articulation of the human experience, and the chakra system can be thought of as a means to understand and enhance that experience, it is interesting and worthwhile leap to explore the how the chakras can develop and refresh the way we read and write poetry. This critical preface closely reads seven poems, one through each chakra, finding what the chakras unveil. Here, each chakra is considered for its dynamic creative capabilities and for its beneficial potentiality in the reading and writing process, finding each chakra provides tools: idea generators with the potential to free the poet from usual patterns of creativity while broadening …
Date: December 2012
Creator: Blomgren, Aubree Sky
System: The UNT Digital Library
Development of Wireless Sensor Network System for Indoor Air Quality Monitoring (open access)

Development of Wireless Sensor Network System for Indoor Air Quality Monitoring

This thesis describes development of low cost indoor air quality (IAQ) monitoring system for research. It describes data collection of various parameters concentration present in indoor air and sends data back to host PC for further processing. Thesis gives detailed information about hardware and software implementation of IAQ monitoring system. Also discussed are building wireless ZigBee network, creating user friendly graphical user interface (GUI) and analysis of obtained results in comparison with professional benchmark system to check system reliability. Throughputs obtained are efficient enough to use system as a reliable IAQ monitor.
Date: December 2012
Creator: Borkar, Chirag
System: The UNT Digital Library
The Invisible Dragon (open access)

The Invisible Dragon

This collection of memoir essays chronicles the author's 19 year struggle with chronic depression. "The Invisible Dragon" explores the onset of the disease and its cure. "The Silent Typewriter" looks at how it affected the author as a writer. "Roses for Trish" discusses how it affected his wife. "My Mother's Son" explores the possibility that he inherited depression from his mother. The final essay, "The Dragon Returns" probes the author's life in 2012 with the probability that he has a personality disorder. The preface examines several depression memoirs and explores the strategies used by William Styron, Elizabeth Wurtzel and Kay Redfield Jamison to prevent sliding into the pitfalls inherent in a linear structure. Among these are the use of alternative structures, language, characterization, focus and imagery.
Date: December 2012
Creator: Boutwell, Nathan
System: The UNT Digital Library
The Enemy of My Enemy Is What, Exactly? the British Flanders Expedition of 1793 and Coalition Diplomacy (open access)

The Enemy of My Enemy Is What, Exactly? the British Flanders Expedition of 1793 and Coalition Diplomacy

The British entered the War of the First Coalition against Revolutionary France in 1793 diplomatically isolated and militarily unprepared for a major war. Nonetheless, a French attack on the Dutch Republic in February 1793 forced the British to dispatch a small expeditionary force to defend their ally. Throughout the Flanders campaign of 1793, the British expeditionary force served London as a tool to end British isolation and enlist Austrian commitment to securing British war objectives. The 1793 Flanders campaign and the Allied war effort in general have received little attention from historians, and they generally receive dismissive condemnation in general histories of the French Revolutionary Wars. This thesis examines the British participation in the 1793 Flanders campaign a broader diplomatic context through the published correspondence of relevant Allied military and political leaders. Traditional accounts of this campaign present a narrative of defeat and condemn the Allies for their failure to achieve in 1793 the accomplishments of the sixth coalition twenty years later. Such a perspective obscures a clear understanding of the reasons for Allied actions. This thesis seeks to correct this distortion by critically analyzing the relationship between British diplomacy within the Coalition and operations in Flanders. Unable to achieve …
Date: August 2012
Creator: Jarrett, Nathaniel W.
System: The UNT Digital Library
Characterization of Arthrobacter Globiformis Aspartate Transcarbamylase Concentrations of Substrates (open access)

Characterization of Arthrobacter Globiformis Aspartate Transcarbamylase Concentrations of Substrates

This thesis consists of one major section with two subsections. The first subsection investigates the activity of Arthrobacter globiformis aspartate transcarbamylase's specific activity with increasing concentrations of the enzyme's substrate. Dihydroorotase (DHOase) activity was also measured with increasing concentrations of the substrate dihydroorotate. The second subsection collected data in order to classify the enzyme, resulting in a classification into the category of class A ATCases with bifunctional ATCase-DHOase complexes. The thesis provides evidence to broaden understanding of the ATCase and DHOase enzymes for members of the family that Arthrobacter belongs to.
Date: December 2012
Creator: Wright, Jackie
System: The UNT Digital Library
The Sex Offender Registry in Collin County, Texas: a Descriptive Analysis of Sex Offenders (open access)

The Sex Offender Registry in Collin County, Texas: a Descriptive Analysis of Sex Offenders

The primary goal of this study was to analyze the characteristics of current registered sex offenders in Collin County, Texas, as well as to compare age and gender of the victims of these offenders in order to know who sex offenders primarily target in these crimes. The study also sought to discover geographic patterns of where the registered sex offenders reside for the purpose of keeping communities aware. Participants consisted of 175 registered sex offenders (N = 175) in Collin County, Texas, found on Collin County's and the Texas Department of Public Safety's online public registries. The findings demonstrate that there were significant trends among the sex offenders, their victims, location of residence, and housing complications as a result of progressing sex offender laws. Treatment programs and the reintegration of offenders in the community were also addressed. The meaning of the results in this study can aid in the development of safety and prevention strategies, provide an understanding about the utilization of sex offender registries, and can benefit law enforcement to predict the movement of current sex offenders, along with knowing where to find other potential offenders.
Date: December 2012
Creator: Valenzuela, Priscilla
System: The UNT Digital Library
Ecological Forms of Life: Wittgenstein and Ecolinguistics (open access)

Ecological Forms of Life: Wittgenstein and Ecolinguistics

The present philosophical literature on philosopher Ludwig Wittgenstein tends to either stagnate by focusing upon issues particular to Wittgenstein's philosophy or expand the boundaries of Wittgenstein's thought to shed light onto other areas of study. One area that has largely been ignored is the realm of environmental philosophy. I prepare the way for a solution to this by first arguing that Wittgenstein's later philosophy of language shows 'proto-ecolinguistic' concerns, sharing much in common with the ecolinguistic thought of both Peter Mühlhäusler and Luisa Maffi. This reading, as well as the work of Mühlhäusler and Maffi, is a starting point for an opposition to a common trend in much of contemporary linguistics of adhering to a linguistic paradigm of universalizing linguistic atomism that gives an impoverished account of language. This impoverished account is argued to have potential environmental and ecological consequences which the universalizing atomistic paradigm is ill-equipped to address.
Date: December 2012
Creator: Sarratt, Nicholas M.
System: The UNT Digital Library
Solid Lubrication Mechanisms in Laser Deposited Nickel-titanium-carbon Metal Matrix Composites (open access)

Solid Lubrication Mechanisms in Laser Deposited Nickel-titanium-carbon Metal Matrix Composites

A Ni/TiC/C metal matrix composite (MMC) has been processed using the laser engineered net shaping (LENS) process from commercially available powders with a Ni-3Ti-20C (atomic %) composition. This processing route produces the in-situ formation of homogeneously distributed eutectic and primary titanium carbide and graphite precipitates throughout the Ni matrix. The composite exhibits promising tribological properties when tested in dry sliding conditions with a low steady state coefficient of friction (CoF) of ~0.1 and lower wear rates in comparison to LENS deposited pure Ni. The as deposited and tribologically worn composite has been characterized using Auger electron spectroscopy, scanning electron microscopy (SEM), X-ray diffraction, high resolution transmission electron microscopy (HRTEM) with energy dispersive spectroscopy (EDS), dual beam focused ion beam SEM (FIB/SEM) serial sectioning and Vickers micro-hardness testing. The evolution of subsurface stress states and precipitate motion during repeated sliding contact has been investigated using finite element analysis (FEA). The results of FIB/SEM serial sectioning, HRTEM, and Auger electron spectroscopy in conjunction with FEA simulations reveal that the improved tribological behavior is due to the in-situ formation of a low interfacial shear strength amorphous carbon tribofilm that is extruded to the surface via refined Ni grain boundaries.
Date: December 2012
Creator: Mogonye, Jon-Erik
System: The UNT Digital Library
Spatio-temporal Variation of Nitrate Levels in Groundwater in Texas, 1970 to 2010 (open access)

Spatio-temporal Variation of Nitrate Levels in Groundwater in Texas, 1970 to 2010

This study looks at spatial variation of groundwater nitrate in Texas and its fluctuations at 10 year increments using data from the Texas Water Development Board. While groundwater nitrate increased in the Ogallala and Seymour aquifers across the time period, the overall rate in Texas appears to be declining as time progresses. However, the available data is limited. Findings show that a much more targeted, knowledge based strategy for sampling would not only reduce the cost of water quality analysis but also reduce the risk of error in these analyses by providing a more realistic picture of the spatial variation of problem contaminants, thereby giving decision-makers a clearer picture on how best to handle the reduction and elimination of problem contaminants.
Date: December 2012
Creator: Rice, Susan C.
System: The UNT Digital Library
Challenge the Silence (open access)

Challenge the Silence

This collection of personal essays about incest, abuse, and depression explores the lasting effects of an invisible childhood. The essays follow the protagonist from the age of five to her early twenties. Her brother, at a young age, becomes sexually abusive of her and her sisters, and her parents fail to protect their daughters. The family is divided as the older girls strive to defend their little sisters, while their parents attempt to excuse their son. When her brother is finally sent away, the protagonist is left to salvage what remains of her relationships with her parents.
Date: August 2012
Creator: Peterson, Erica
System: The UNT Digital Library
Design, Synthesis and Screening of Homoleptic and Heteroleptic Platinum(ii) Pyridylazolate Complexes for N-type Semiconducting and Light-emitting Devices (open access)

Design, Synthesis and Screening of Homoleptic and Heteroleptic Platinum(ii) Pyridylazolate Complexes for N-type Semiconducting and Light-emitting Devices

A series of heteroleptic and homoleptic platinum(II) complexes has been synthesized and characterized towards their use in thin film devices such as organic light-emitting diodes (OLEDs) and organic thin film transistors (OTFTs). Pyridylpyrazolate- and pyridyltetrazolate-containing ligands were selected due to their structural rigidity and ease of functionalization. Single-crystal x-ray diffraction studies of two selected heteroleptic complexes show strong aggregation with preferential stacking into vertical columns with a varying degree of overlap of the neighboring square planar molecular units. It is shown that the close proximity of the molecules to one another in the stack increases semiconducting character, phosphorescence quantum yields, and shorter radiative lifetimes. The potential for these materials towards incorporation into high-efficiency doping free white OLEDs (DFW-OLEDs) for solid-state lighting and display applications has been realized and will be expanded upon by present and future embodiments of materials in this thesis.
Date: August 2012
Creator: Oswald, Iain William Herbert
System: The UNT Digital Library
“The Way It Goes”: Stories (open access)

“The Way It Goes”: Stories

This collection of short stories attempts to examine the role of a changing and often indifferent world has in the way various characters achieve maturity. Though the past is not always obvious in each story, each protagonist is characterized as holding onto some aspect of his or her past life in a way that is detrimental to their growing as human beings. the stories attempt to portray the indifference of the world as it moves forward to the plight of these characters, and to portray the manner in which they each come to terms with such a world and with their own lives.
Date: May 2012
Creator: Wood, Joshua
System: The UNT Digital Library
Implementing a Physical Activity Centered Education Program for Individuals with Brain Injury (open access)

Implementing a Physical Activity Centered Education Program for Individuals with Brain Injury

Research has shown that health promotion programs (HPP) that incorporate education about physical activity (PA) are one mode of rehabilitation that can improve the health of individuals with disabilities. However, education-based PA curriculum is not included in the rehabilitation program for individuals with a brain injury, indicating a gap in services provided. Consequently, the purpose of this study was to create and deliver a physical activity centered education (PACE) program that supplemented the existing rehabilitation program for brain injury. PACE consists of an 8-week (16 session) program aimed to (1) increase self-efficacy for being physically active of PACE program participants, (2) increase PA stage of change in PACE program participants or the maintenance of adequate level of PA, and (3) improve the rehabilitation outcomes (i.e., abilities, participation, adjustment) of PACE program participants. Based on previous research, it is hypothesized that participation in PACE will result in (1A) increased self-efficacy for PA, (1B) greater self-efficacy for PA than the standard of care group, (2A) increased readiness to be physically active, (2B) greater readiness to change their PA behavior than the standard of care group, (3A) improved rehabilitation outcomes, and (3B) greater rehabilitation outcomes than the standard of care group. the PACE …
Date: May 2012
Creator: Woolsey, Anne-Lorraine T.
System: The UNT Digital Library
Performance Rights in Sound Recordings: the Impact of the Performance Rights Act on Radio, Records, and Performing Artists (open access)

Performance Rights in Sound Recordings: the Impact of the Performance Rights Act on Radio, Records, and Performing Artists

The original works of copyright holders included tangible creations, as music written on a page, thereby, extending copyright protection to songwriters and music publishers. Until 1995, absent from U.S. copyright law was protection for copyright owners of intangible sound recordings. the Performance Rights Act (PRA) seeks to amend the US copyright law in order to grant copyright holders of sound recordings the right to performance royalties from terrestrial broadcast radio. If passed, the legislation would be unprecedented in the United States. the PRA has implications for broadcast radio, record labels, and performing artists. This study includes historical and legal perspective of previous attempts at legislation of this nature and predicts outcomes of current legislation.
Date: May 2012
Creator: Wright-Harmon, Joy
System: The UNT Digital Library
My Land, My Life (open access)

My Land, My Life

My Land, My Life is a documentary film about the woman, Jo Angela Lamb, who lives and works on Frying Pan Ranch in Texas Panhandle. the film explores the complexity of a ranch woman's experience that breaks the spell of the stereotyped image of American cowgirls. It also reflects on women ranchers’ relationship with their family members and their relationship with the land.
Date: May 2012
Creator: Zhang, Mingyun
System: The UNT Digital Library
Jiggs (open access)

Jiggs

Jiggs is a documentary that explores how Jiggs Gaffney serves despite his mental disability. By observing Jiggs’ involvement at Pine Cove Christian Camps, and revealing his past, the documentary shows how anyone can be used for a greater good, and reveals how God can be served and glorified by anyone, no matter the individual circumstances.
Date: May 2012
Creator: Sosa, Mario
System: The UNT Digital Library
Progressing From Multiple-respondent Anecdotal Assessments to Test-control Analyses of Problem Behavior (open access)

Progressing From Multiple-respondent Anecdotal Assessments to Test-control Analyses of Problem Behavior

The current study was designed to evaluate the utility of progressing sequentially from multiple-respondent anecdotal assessments through test-control treatment analysis as an effective and efficient method of identifying the environmental determinants of problem behavior. the goal of the study was to evaluate overall agreement among multiple respondents on the primary function of aberrant behavior using the Motivation Assessment Scale (MAS) and Questions About Behavioral Function (QABF) and, if agreement was obtained, conduct a test-control evaluation to confirm anecdotal assessment findings while simultaneously evaluating the effects of function-based treatment. for 4 individuals, at least 4 of 5 respondents to the anecdotal assessments agreed (both within and across assessments) on the probable maintaining consequence for their problem behaviors. Test-control multielement evaluations were then conducted in which baseline sessions, corresponding to the suspected operant function of each individual’s problem behavior, were alternated with sessions in which the identified contingency was arranged for alternative behavior. Each evaluation showed substantial decreases in problem behavior and maintenance of alternative responses.
Date: May 2012
Creator: Staff, Martha Joe
System: The UNT Digital Library
Psychopathic and Antisocial Personality Disorder Traits As Predictors of Reactive and Instrumental Aggression (open access)

Psychopathic and Antisocial Personality Disorder Traits As Predictors of Reactive and Instrumental Aggression

Aggression has traditionally been subdivided into two correlated, but distinct, subtypes: reactive and instrumental. Reactive aggression (RA) is considered impulsive, emotionally driven behavior, whereas instrumental aggression (IA) is planned and incentive-motivated. This thesis examines the relationships between RA, IA, psychopathy, and antisocial personality disorder (APD) symptoms in male and female offenders recruited from a jail in north Texas. Contrary to predictions, psychopathic traits did not account for more variance in aggression than did APD symptoms. Impulsivity demonstrated slight incremental validity over psychopathy for RA, and to a lesser degree, IA. the continued utility of the reactive-instrumental distinction and implications for professional practice in relation to the current study are examined. Study limitations and directions for future research are discussed.
Date: May 2012
Creator: Steadham, Jennifer A.
System: The UNT Digital Library
Electrochemical Depostion of Bismuth on Ruthenium and Ruthenium Oxide Surfaces (open access)

Electrochemical Depostion of Bismuth on Ruthenium and Ruthenium Oxide Surfaces

Cyclic voltammetry experiments were performed to compare the electrodeposition characteristics of bismuth on ruthenium. Two types of electrodes were used for comparison: a Ru shot electrode (polycrystalline) and a thin film of radio-frequency sputtered Ru on a Ti/Si(100) support. Experiments were performed in 1mM Bi(NO3)3/0.5M H2SO4 with switching potentials between -0.25 and 0.55V (vs. KCl sat. Ag/AgCl) and a 20mV/s scan rate. Grazing incidence x-ray diffraction (GIXRD) determined the freshly prepared thin film electrode was hexagonally close-packed. After thermally oxidizing at 600°C for 20 minutes, the thin film adopts the tetragonal structure consistent with RuO2. a hydrated oxide film (RuOx?(H2O)y) was made by holding 1.3V on the surface of the film in H2SO4 for 60 seconds and was determined to be amorphous. Underpotential deposition of Bi was observed on the metallic surfaces and the electrochemically oxidized surface; it was not observed on the thermal oxide.
Date: May 2012
Creator: Taylor, Daniel M.
System: The UNT Digital Library
Improving Family-provider Relationships Through Cultural Training and Open-ended Client Interviews (open access)

Improving Family-provider Relationships Through Cultural Training and Open-ended Client Interviews

Behavior analysts form parent-professional relationships with families of many different backgrounds. the study evaluated the effectiveness of a training program to teach behavior analysts to utilize an open family interview format. the study was conducted at an autism treatment program. a pre-post treatment design with in vivo simulation probes before and after training was used to assess the effects of the workshop on the participants and parents’ verbal behavior. Results showed that rate of questions per minute and number of closed-ended questions decreased after training, the duration of interviews decreased after training, the number of closed-ended questions significantly decreased after training, and frequency of the discussion topic of child goals increased after training. in general, interviewer responses varied. Preliminary data and parent questionnaire responses suggested parents were comfortable with the new interview format and felt the behavior analyst understood cultural and family needs.
Date: May 2012
Creator: Thompson, Megan Jennifer
System: The UNT Digital Library
“Valentine’s Day” and Other Works (open access)

“Valentine’s Day” and Other Works

The following collection includes three short stories and two essays compiled with a critical preface. “Valentine’s Day” explores the limits of friendship and love in various situations including, two road trips (one fictional and one factual), pet ownership, and the impersonations of Frank Sinatra.
Date: May 2012
Creator: Thornburg, Chrissie
System: The UNT Digital Library
Charlotte Perkins Gilman: Naturalist Playwright (open access)

Charlotte Perkins Gilman: Naturalist Playwright

This study explores Charlotte Perkins Gilman’s use of the dramatic form to challenge Herbert Spencer’s social Darwinism by offering feminist adaptations of Darwin’s theories of natural and sexual selection. As she does in her career-defining manifesto, Women & Economics (1898), Gilman in her lesser-known plays deploys her own brand of reform Darwinism to serve the feminist cause. Despite her absence in histories of modern drama, Gilman actively participated in the establishment and development of this literary, historical, and cultural movement. After situating Gilman in the context of nineteenth-century naturalist theater, this thesis examines two short dramatic dialogues she published in 1890, “The Quarrel,” and “Dame Nature Interviewed,” as well as two full-length plays, Interrupted (1909) and the Balsam Fir (1910). These plays demonstrate Gilman’s efforts to use the dramatic form in her early plays to “rehearse” for Women & Economics, and in her later drama, to “stage” the theories she presents in that book.
Date: May 2012
Creator: Tolle, Andrew
System: The UNT Digital Library