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Neuropsychological Functioning in Active Duty Soldiers with Physical and/or Psychological Trauma (open access)

Neuropsychological Functioning in Active Duty Soldiers with Physical and/or Psychological Trauma

This quasi-experimental study investigates neuropsychological functioning differences between 63 active duty soldiers who were placed into three groups (MTBI, PTSD, control) to provide better information for differentiating PTSD and MTBI. The ANAM and MicroCog were utilized to measure psychomotor speed, memory, and attention. Participants with PTSD performed worse on most measures of psychomotor speed and attention, and endorsed more symptoms of depression and anxiety when compared to MTBI and control participants. Further, attention appears to be the best cognitive domain for differentiating PTSD from MTBI, whereas memory variables did not differentiate these groups. Clinical and research implications of these findings are discussed.
Date: December 2010
Creator: Klein, Robert S.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Correlates of Video Game Addiction (open access)

Correlates of Video Game Addiction

Video game addiction often leads to a tremendous burden on those afflicted with the condition, draining their time, resources, and life away until they have nothing left. To further elucidate the problem of video game addiction, the current research examines the level of video game addiction of 111 participants, along with their motivation for their addictive behaviors, the quality of life of addicted individuals, and possible relations between video game addiction and other forms of addiction. Results of the current research indicate a correlation between addictive video game use and depression, alcohol use, a desire for escapism, a need for social interaction, and lack of self-control. The results of a multiple regression indicate that, amongst the various research factors, depression is the factor with the most significant link to addictive video game use, implying a dangerous correlation between mental health and an addictive behavior that some erroneously disqualify as a true addiction.
Date: December 2010
Creator: Langley, Alex
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Self-Efficacy and Fears of Pain and Injury in Gymnastics and Tumbling: Does a Previous Injury Matter? (open access)

Self-Efficacy and Fears of Pain and Injury in Gymnastics and Tumbling: Does a Previous Injury Matter?

The purpose of this study was to explore whether a previous gymnastic or tumbling injury influences gymnasts' and tumblers' self-efficacy, motivation, competition anxiety, and fears of pain and injury. Participants (N = 105) completed survey packets during practice which contained demographic questions and questionnaires that measure self-efficacy for physical abilities and exercise, self-motivation, risk of injury, pain catastrophizing, and sport anxiety. Results of a one-way ANOVA indicated that gymnasts and tumblers who experienced a previous injury were significantly different than those who had not experienced an injury on their self-efficacy for physical abilities (p = .007), self-motivation (p = .007), and perceived risk of reinjury (p = .018). Specifically, these findings indicate that gymnasts and tumblers with previous injuries experience higher levels of self-efficacy for physical abilities, self-motivation, and perceived risk of reinjury. Implications for coaches, gymnasts, and tumblers include: creating an open and comfortable environment to discuss pain and injury, developing strategies to break the negative cycle of fear of injury, and fostering a positive rehabilitation process. In the future, researchers should examine the influence that gender and type of competition has on self-efficacy, self-motivation, perceived risk of reinjury, pain perceptions, and competition anxiety of those who have experienced …
Date: December 2010
Creator: Jackson, Stacy
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Alignment of Middle School Core TEKS with Visual Arts TEKS (open access)

Alignment of Middle School Core TEKS with Visual Arts TEKS

This descriptive study uses a qualitative, content analysis to examine the middle school visual arts and core Texas Essential Knowledge and Skills (TEKS) to determine the potential common learning activities that can be aligned between the two. By performing an alignment of the potential common learning activities present in the middle school visual art TEKS and the middle school core TEKS, I demonstrate that there is a foundation for curriculum integration in the Texas middle school visual arts classroom.
Date: December 2010
Creator: Hartman, Jennifer
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Schoolyard Politics: Ethics and Language at the International Criminal Tribunal for the Former Yugoslavia (open access)

Schoolyard Politics: Ethics and Language at the International Criminal Tribunal for the Former Yugoslavia

The International Criminal Tribunal for the Former Yugoslavia (ICTY) has been both contentious and successful. By examining the ICTY from a Levinasian ethical standpoint, we might be able to understand how the court uses language to enforce ethical and moral standards upon post-war societies. Using linguistic methods of analysis combined with traditional data about the ICTY, I empirically examine the court using ordinary least squares (OLS) in order to show the impact that language has upon the court's decision making process. I hypothesize that the court is an ethical entity, and therefore we should not see any evidence of bias against Serbs and that language will provide a robust view of the court as an ethical mechanism.
Date: December 2010
Creator: Hatcher, Robert
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Fashioning the Domestic Ideology: Women and the Language of Fashion in the Works of Elizabeth Stoddard, Louisa May Alcott, and Elizabeth Keckley (open access)

Fashioning the Domestic Ideology: Women and the Language of Fashion in the Works of Elizabeth Stoddard, Louisa May Alcott, and Elizabeth Keckley

Women authors in mid to late nineteenth century American society were unafraid to shed the old domestic ideology and set new examples for women outside of racial and gender spheres. This essay focuses on the ways in which Elizabeth Stoddard's The Morgesons, Louisa May Alcott's Behind a Mask, and Elizabeth Keckley's Behind the Scenes, or, Thirty Years a Slave, and Four Years in the White House represent the function of fashion and attire in literature. Each author encourages readers to examine dress in a way that defies the typical domestic ideology of nineteenth century America. I want my readers to understand the role of fashion in literature as I progress through each work and ultimately show how each female author and protagonist set a new example for womanhood through their fashion choices.
Date: December 2010
Creator: Villafranca, Brooke
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Hugo Wolf's Interpretation of Paul Heyse's Texts: An Examination of Selected Songs from the Italienisches Liederbuch (open access)

Hugo Wolf's Interpretation of Paul Heyse's Texts: An Examination of Selected Songs from the Italienisches Liederbuch

In a Romantic song cycle or songbook, songs tend to share many common ideas because they are used to set to the poems from one collection written or collected by one author. Many composers designed the same motivic or structural elements to a group of songs for unity, and sometimes they made chronological narratives for the series of poems. Music theorists have tried to find out a way of giving a sense of unity or narrative to the songs in a song cycle or songbook by analyzing its musical language and text setting. They have suggested plausible explanations for the relationships among the songs in a song cycle or songbook, and some theorists have traced the tonal movements and provided a visual explanation for them. Hugo Wolf's two volumes of the Italienisches Liederbuch (1890-91, 1896) were set to the forty-six poems from Paul Heyse's well-selected works. Wolf's way of selecting poems from Heyse's collection seems inconsistent, and his song ordering in the both volumes does not show evident rules. However, a closer study for relationships between the songs could widen our perspective to comprehend the whole songbook as a unified storyline. This study selected the first four songs from each …
Date: December 2010
Creator: Shin, Dong Jin
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Source-bonding as a Variable in Electroacoustic Composition: Faktura and Acoustics in Understatements (open access)

Source-bonding as a Variable in Electroacoustic Composition: Faktura and Acoustics in Understatements

Understatements for two-channel fixed media is a four-movement study of the sonic potential of acoustic instruments within the practice of electroacoustic studio composition. The musical identity of the entire composition is achieved through consistent approaches to disparate instrumental materials and a focused investigation of the relationships between the various acoustic timbres and their electroacoustic treatments. The analytical section of this paper builds on contemporary research in electroacoustic arts. The analysis of the work is preceded by a summary of theoretical and aesthetic approaches within electroacoustic composition and the introduction of primary criteria of sonic faktura (material essence) used in the compositional process. The analyses address the idiosyncratic use of the concept of faktura to contextualize and guide the unfolding of the work. The reconciliation of the illusory electronic textures and the acoustic sources that parented them may be considered the ultimate goal of Understatements.
Date: December 2010
Creator: Rostovtsev, Ilya Y.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Induced Bradycardia Effects on Angiogenesis, Growth and Development in Early Development in Chicken Embryos, Gallus Domesticus (open access)

Induced Bradycardia Effects on Angiogenesis, Growth and Development in Early Development in Chicken Embryos, Gallus Domesticus

Cardiac performance, angiogenesis and growth was investigated during early chicken development. Heart rate, and thus arterial pulse pressure and cardiac output, were altered with the bradycardic drug ZD7288. Heart rates at 72 h of development of control embryos and those dosed with chicken Ringer were not different at 171 bpm. Acute and chronic application of ZD7288 caused significant bradycardia. Chronic dosing of Ringer and ZD7288 changed neither eye diameter nor development rate. Chronic dosing of ZD7288 did not significantly alter CAM vessel density close to the embryo (2, 3 and 4 mm) but at farther distances (5 and 6 mm) chronic dosing with both Ringer and ZD7288 decreased vessel density by 13 - 16%. Chronic dosing with ZD7288 also reduced body mass by 20%. Thus, lowered heart rate and cardiac output had little effect on vessel density or developmental stage, but did reduce embryo growth.
Date: December 2010
Creator: Ruck, Sylvia A.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Implementation of Turbo Codes on GNU Radio (open access)

Implementation of Turbo Codes on GNU Radio

This thesis investigates the design and implementation of turbo codes over the GNU radio. The turbo codes is a class of iterative channel codes which demonstrates strong capability for error correction. A software defined radio (SDR) is a communication system which can implement different modulation schemes and tune to any frequency band by means of software that can control the programmable hardware. SDR utilizes the general purpose computer to perform certain signal processing techniques. We implement a turbo coding system using the Universal Software Radio Peripheral (USRP), a widely used SDR platform from Ettus. Detail configuration and performance comparison are also provided in this research.
Date: December 2010
Creator: Talasila, Mahendra
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Thermal Identification of Clandestine Burials: A Signature Analysis and Image Classification Approach (open access)

Thermal Identification of Clandestine Burials: A Signature Analysis and Image Classification Approach

Clandestine burials, the interred human remains of forensic interest, are generally small features located in isolated environments. Typical ground searches can be both time-consuming and dangerous. Thermal remote sensing has been recognized for some time as a possible search strategy for such burials that are in relatively open areas; however, there is a paucity of published research with respect to this application. This project involved image manipulation, the analyses of signatures for "graves" of various depths when compared to an undisturbed background, and the use of image classification techniques to tease out these features. This research demonstrates a relationship between the depth of burial disturbance and the resultant signature. Further, image classification techniques, especially object-oriented algorithms, can be successfully applied to single band thermal imagery. These findings may ultimately decrease burial search times for law enforcement and increase the likelihood of locating clandestine graves.
Date: December 2010
Creator: Servello, John A.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Forensic Science Applications Utilizing Nanomanipulation-Coupled to Nanospray Ionization-Mass Spectrometry for the Analysis of Ultra-Trace Illicit Drugs (open access)

Forensic Science Applications Utilizing Nanomanipulation-Coupled to Nanospray Ionization-Mass Spectrometry for the Analysis of Ultra-Trace Illicit Drugs

Presented in this thesis are two methods that are coupled to the instrumentation for the recovery and analysis of ultra-trace illicit drug residues. The electrostatic dust lifting process is coupled with nanomanipulation-nanospray ionization to retrieve drug particles off of hard surfaces for analysis. For the second method, drug residues from fingerprint impressions are extracted followed by analysis. The methodology of these hyphenated techniques toward forensic science applications is applied as to explore limits of detection, sensitivity, and selectivity of analytes as well as immediacy and efficiency of analysis. The application of nanomanipulation-coupled to nanospray ionization-mass spectrometry toward forensic science based applications is considered as future improvements to trace and ultra-trace analysis.
Date: December 2010
Creator: Wallace, Nicole
Object Type: Thesis or Dissertation
System: The UNT Digital Library
White Creole Women in the British West Indies: From Stereotype to Caricature (open access)

White Creole Women in the British West Indies: From Stereotype to Caricature

Many researchers of gender studies and colonial history ignore the lives of European women in the British West Indies. The scarcity of written information combined with preconceived notions about the character of the women inhabiting the islands make this the "final frontier" in colonial studies on women. Over the long eighteenth century, travel literature by men reduced creole white women to a stereotype that endured in literature and visual representations. The writings of female authors, who also visited the plantation islands, display their opinions on the creole white women through their letters, diaries and journals. Male authors were preoccupied with the sexual morality of the women, whereas the female authors focus on the temperate lifestyles of the local females. The popular perceptions of the creole white women seen in periodicals, literature, and caricatures in Britain seem to follow this trend, taking for their sources the travel histories.
Date: December 2010
Creator: Northrop, Chloe Aubra
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Global Expansion of Transnational Retailers: A Case Study of the Localization Strategy of Costco in Taiwan (open access)

The Global Expansion of Transnational Retailers: A Case Study of the Localization Strategy of Costco in Taiwan

This research focuses on the global expansion of the transnational retail industry. Globalization is a phenomenon experienced by many industries in the present global economy. The global production network (GPN) framework can be used to explain and interpret the phenomenon of transnational firms' adaptation strategies. Due to market saturation in their home countries, retailers began to expand into East Asia in the 1980s. However, cultural differences and legislative limitations created barriers and restrictions for the transnational retailers making this transition. How do firms overcome these challenges? Through a case study of Costco in Taiwan, this research investigates the ways in which retailers adapt their strategies with regard to three concerns: site decisions, product mix selection, and supply network consolidation. The results shows that Costco opted for a strategy of lesser localization in all three domains. This research provides evidence to support this characterization along with examples of Costco's localization strategies via a case study and focuses on the issue of the balance between localization and standardization in the GPN framework.
Date: December 2010
Creator: Yeh, YunLung
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Syntheses, X-ray Diffraction Structures, and Kinetics on New Formamidinate-Substituted Triosmium Clusters (open access)

Syntheses, X-ray Diffraction Structures, and Kinetics on New Formamidinate-Substituted Triosmium Clusters

The reaction between the formamidine ligand PriN=CHNHPri and the activated cluster Os3(CO)10(MeCN)2 has been studied. A rapid reaction is observed at room temperature, yielding the hydride clusters HOs3(CO)9[μ-OCNPriC(H)NPri] and HOs3(CO)10[μ-NPriC(H)NPri] as the principal products. The spectroscopic data and X-ray diffraction structures of those formamidinate-substituted clusters will be present. The thermal reactivity of the clusters has been investigated, with the face-capped cluster HOs3(CO)9[μ-NPriC(H)NPri] found as the sole observable product. The relationship between these three clusters has been established by kinetic studies, the results of which will be discussed.
Date: December 2010
Creator: Yang, Li
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Situating Cost-Benefit Analysis for Environmental Justice (open access)

Situating Cost-Benefit Analysis for Environmental Justice

Cost-benefit analysis plays a significant role in the process of siting hazardous waste facilities throughout the United States. Controversy regarding definitively disparate, albeit unintentional, racist practices in reaching these siting decisions abounds, yet cost-benefit analysis stands incapable of commenting on normative topics. This thesis traces the developments of both cost-benefit analysis and its normative cousin utilitarianism by focusing on the impacts they have had on the contemporary environmental justice discourse and highlighting valid claims, misunderstandings, and sedimented ideas surrounding the popularity of cost-benefit analysis. This analysis ultimately leads to an alternative means of realizing environmental justice that both acknowledges the need for greater democratic interactions and attempts to work with, rather than against, the prevailing paradigm of reaching siting decisions.
Date: December 2010
Creator: Wohlmuth, Erik Michael
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Effect of High-Probability Request Sequences on Latency to Comply with Instructions to Transition in a Child With Severe Mental Retardation (open access)

The Effect of High-Probability Request Sequences on Latency to Comply with Instructions to Transition in a Child With Severe Mental Retardation

This study investigated the effect of implementing high-probability request sequences prior to the delivery of instructions to transition in a child with severe mental retardation. Data were collected on latency to comply with a low-probability request to transition and a modified version of the low-probability request. Implementation of high-probability request sequences resulted in shortened latencies to comply with the modified low-probability request instructing the child to engage in a preferred activity located at the endpoint of the transition.
Date: December 2010
Creator: Carpentieri, Michelle Lee
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Measuring Vital Signs Using Smart Phones (open access)

Measuring Vital Signs Using Smart Phones

Smart phones today have become increasingly popular with the general public for its diverse abilities like navigation, social networking, and multimedia facilities to name a few. These phones are equipped with high end processors, high resolution cameras, built-in sensors like accelerometer, orientation-sensor, light-sensor, and much more. According to comScore survey, 25.3% of US adults use smart phones in their daily lives. Motivated by the capability of smart phones and their extensive usage, I focused on utilizing them for bio-medical applications. In this thesis, I present a new application for a smart phone to quantify the vital signs such as heart rate, respiratory rate and blood pressure with the help of its built-in sensors. Using the camera and a microphone, I have shown how the blood pressure and heart rate can be determined for a subject. People sometimes encounter minor situations like fainting or fatal accidents like car crash at unexpected times and places. It would be useful to have a device which can measure all vital signs in such an event. The second part of this thesis demonstrates a new mode of communication for next generation 9-1-1 calls. In this new architecture, the call-taker will be able to control the …
Date: December 2010
Creator: Chandrasekaran, Vikram
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Depression in Diabetic and Non-Diabetic Individuals: Physical Activity, Nutrition, and Diet (open access)

Depression in Diabetic and Non-Diabetic Individuals: Physical Activity, Nutrition, and Diet

About 8.3% of individuals diagnosed with diabetes mellitus (DM) are diagnosed with comorbid depression, a higher rate than the general adult population. This project examined the differences of depression symptoms experienced between diabetic and matched non-diabetic individuals and the relationship of daily activity and nutrition behaviors with depression between these groups. The 2005-2006 National Health and Nutrition Examination Survey (NHANES) was utilized to assess: depression symptoms, diabetic glycemic control as measured by glycoginated hemoglobin (HbA1c), amount of physical activity, percentage of macronutrients, daily frequencies of foods consumed, and the use of nutritional food labels to make food choices. A sample of diabetic (n = 451) and non-diabetic individuals (n = 451) were matched to on age, gender, ethnicity, and education. The diabetic individuals experienced greater depression on both continuous and ordinal diagnostic variables. Counter to expectation, there was no relationship observed between depression and HbA1c in diabetic individuals, r = .04, p > .05.
Date: December 2010
Creator: Edwards, Kate G.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Examining the Effects of Psychographics, Demographics, and Geographics on Time-Related Shopping Behaviors (open access)

Examining the Effects of Psychographics, Demographics, and Geographics on Time-Related Shopping Behaviors

The purpose of this study was to determine the effects of psychographic (shopping orientation, lifestyle, social class), demographic (gender, ethnicity, age), and geographic (area of residence) variables on time-related shopping behaviors when shopping for clothing for the self. The concept of time-related shopping behaviors has not been the focus of any study of the American market. Data (N = 550) were collected via a questionnaire with an online survey company. Through analysis of chi square statistics, ANOVA, Pearson product-moment correlation, and factor analysis, it was found that psychographics and demographics affected time-related and other shopping behaviors. Geographics was found to affect shopping behavior, but not specifically the time-related shopping behaviors studied.
Date: December 2010
Creator: Garnett, Rebecca
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Reality Television: Using Para-Social Relationship Theory and Economic Theory to Define the Success of Network Reality Programming (open access)

Reality Television: Using Para-Social Relationship Theory and Economic Theory to Define the Success of Network Reality Programming

This study seeks to use a dual-theoretical approach, through the use of para-social relationship theory and economic data analysis, to explain the success of reality television since the early 2000s. This study uses both qualitative and quantitative components to understand the growth of reality television. This study includes a literature analysis of both methodologies used. Focus groups were used to seek to find a strong level of para-social interaction in viewers of reality television. Two focus groups were conducted with participants 18-35. There were a total of 16 participants who attended the focus group sessions. The information collected suggested that viewers of reality television formed para-social relationships. It appeared that female viewers were more likely to form para-social relationships than male viewers.
Date: December 2010
Creator: Dyer, Caitlin Elizabeth
Object Type: Thesis or Dissertation
System: The UNT Digital Library
From Outward Appearance to Inner Reality: A Reading of Aaron Copland's Inscape (open access)

From Outward Appearance to Inner Reality: A Reading of Aaron Copland's Inscape

About 8.3% of individuals diagnosed with diabetes mellitus (DM) are diagnosed with comorbid depression, a higher rate than the general adult population. This project examined the differences of depression symptoms experienced between diabetic and matched non-diabetic individuals and the relationship of daily activity and nutrition behaviors with depression between these groups. The 2005-2006 National Health and Nutrition Examination Survey (NHANES) was utilized to assess: depression symptoms, diabetic glycemic control as measured by glycoginated hemoglobin (HbA1c), amount of physical activity, percentage of macronutrients, daily frequencies of foods consumed, and the use of nutritional food labels to make food choices. A sample of diabetic (n = 451) and non-diabetic individuals (n = 451) were matched to on age, gender, ethnicity, and education. The diabetic individuals experienced greater depression on both continuous and ordinal diagnostic variables. Counter to expectation, there was no relationship observed between depression and HbA1c in diabetic individuals, r = .04, p > .05.
Date: December 2010
Creator: Ensign, Jeffrey S.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Benefits and Costs of Social Interactions Among Firefighters (open access)

Benefits and Costs of Social Interactions Among Firefighters

Despite high levels of exposure, firefighter posttraumatic stress disorder (PTSD) rates are unclear. Likewise, questions remain regarding how social interactions and beliefs about emotion might interact to influence PTSD in firefighters. In this study, U.S. urban firefighters (N = 225) completed measures of social support, negative social interactions, and fear of emotion which were then used via regression analyses to predict PTSD symptoms. Each independent variable predicted PTSD beyond variance accounted for by demographic variables. Additionally, fear of emotion emerged as the strongest individual predictor of PTSD and a moderator of the relation between social interactions and PTSD symptoms. These findings emphasize the importance of beliefs about emotion; both in how these beliefs might influence the expression of PTSD symptoms, and in how the social networks of trauma survivors might buffer distress.
Date: December 2010
Creator: Farnsworth, Jacob
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Gewesener Magdeburgische Musicus: An Examination into the Stylistic Characteristics of Heinrich Grimm's Eight-Voice Motet, Unser Leben Wehret Siebenzig Jahr' (open access)

Gewesener Magdeburgische Musicus: An Examination into the Stylistic Characteristics of Heinrich Grimm's Eight-Voice Motet, Unser Leben Wehret Siebenzig Jahr'

Although Magdeburg cantor Heinrich Grimm was frequently listed among prominent musical figures of the early seventeenth century such as Heinrich Schütz, Johann Hermann Schein, and Michael Praetorius in music lexica through the nineteenth century, he has almost disappeared from modern scholarship. However, a resurgence in Grimm studies has begun in recent years, especially in the areas of biographical study and compositional output. In this study, I examine the yet unexplored music-analytic perspective by investigating the stylistic characteristics of Grimm's 1631 motet, Unser Leben wehret siebenzig Jahr'. Furthermore, I compare his compositional technique to that of his contemporaries and predecessors with the goal of examining the work from both Renaissance and Baroque perspectives.
Date: December 2010
Creator: Dobbs, Benjamin Michael
Object Type: Thesis or Dissertation
System: The UNT Digital Library