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The Enameling Arts in Kuwaiti Pre-service Art Teacher Education (open access)

The Enameling Arts in Kuwaiti Pre-service Art Teacher Education

The purpose of this study was twofold: (1) to examine the knowledge, skills, and experiences in the enameling arts and the attitudes and perceptions of in-service (n = 12) and pre-service Kuwaiti art teachers (n = 170), art supervisors at the Ministry of Education (MOE) (n = 3) and art education faculty members at the College of Basic Education (CBE) and Kuwait University (KU) (n = 8) about what they believed pre-service art teachers should know and be able to do in order to teach the enameling arts, and (2) to use this information to inform and guide the development of a content outline for an enameling course for pre-service Kuwaiti art teachers that is educationally (how to perform enameling arts skills and how to teach what they know), practically (safety issues, workshop management, etc), and culturally (its relation to Islamic culture) suitable. Both quantitative and qualitative approaches were used. Most of the respondents revealed limited knowledge and skills and modest experiences in the enameling arts. All interviewees in the study expressed positive perceptions and attitudes about the enameling arts. Most agreed that a revision to the current art education curriculum at the CBE was needed and made suggestions about …
Date: May 2010
Creator: Darweesh, Ali Hussain
System: The UNT Digital Library
Synthesis and structural, magnetic, thermal, and transport properties of several transition metal oxides and aresnides (open access)

Synthesis and structural, magnetic, thermal, and transport properties of several transition metal oxides and aresnides

Oxide compounds containing the transition metal vanadium (V) have attracted a lot of attention in the field of condensed matter physics owing to their exhibition of interesting properties including metal-insulator transitons, structural transitions, ferromagnetic and an- tiferromagnetic orderings, and heavy fermion behavior. Binary vanadium oxides VnO<sub>2n-1</sub> where 2 ≤ n ≤ 9 have triclinic structures and exhibit metal-insulator and antiferromagnetic transitions.[1–6] The only exception is V<sub>7</sub>O<sub>13</sub> which remains metallic down to 4 K.[7] The ternary vanadium oxide LiV<sub>2</sub>O<sub>4</sub> has the normal spinel structure, is metallic, does not un- dergo magnetic ordering and exhibits heavy fermion behavior below 10 K.[8] CaV<sub>2</sub>O<sub>4</sub> has an orthorhombic structure[9, 10] with the vanadium spins forming zigzag chains and has been suggested to be a model system to study the gapless chiral phase.[11, 12] These provide great motivation for further investigation of some known vanadium compounds as well as to ex- plore new vanadium compounds in search of new physics. This thesis consists, in part, of experimental studies involving sample preparation and magnetic, transport, thermal, and x- ray measurements on some strongly correlated eletron systems containing the transition metal vanadium. The compounds studied are LiV<sub>2</sub>O<sub>4</sub>, YV<sub>4</sub>O<sub>8</sub>, and YbV<sub>4</sub>O<sub>8</sub>. The recent discovery of superconductivity in RFeAsO<sub>1-x</sub>F<sub>x</sub> (R …
Date: January 1, 2010
Creator: Das, Supriyo
System: The UNT Digital Library
College Success for all Students: An Investigation of Early Warning Indicators of College Readiness (open access)

College Success for all Students: An Investigation of Early Warning Indicators of College Readiness

The purpose of this quantitative study was to determine early warning indicators of college readiness among early college high school students at selected Texas institutions of higher education. Participants in this study included 134 of the class of 2010 from two early college high schools. The graduates were 86% Hispanic, 8% African American, 3% White, 2% Asian, 1% American Indian and 72% economically disadvantaged. A causal-comparative research design using multiple regression analysis of the data collected revealed that each one unit increase in world history was associated with a .470 (p < .05) increase in college GPA, while each one unit increase in Algebra I was associated with a .202 (p < .05) increase. Therefore, student grades in high school Algebra I and world history were the strongest statistically significant indicators that a student will maintain a 2.5 college GPA during the first year of college. According to the early warning indicators, students who maintain a grade of A or B in Algebra I are 10 times more likely to be college ready while having a 78% chance of maintaining a 2.5 or better in college courses. Further, the findings from this study found no significant relationship between TAKS assessment, …
Date: December 2010
Creator: Davis, Denise
System: The UNT Digital Library
Thick Nano-Crystalline Diamond films for fusion applications (open access)

Thick Nano-Crystalline Diamond films for fusion applications

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Date: July 14, 2010
Creator: Dawedeit, C
System: The UNT Digital Library
Search for the Production of Gluinos and Squarks with the CDF II Experiment at the Tevatron Collider (open access)

Search for the Production of Gluinos and Squarks with the CDF II Experiment at the Tevatron Collider

This thesis reports on two searches for the production of squarks and gluinos, supersymmetric partners of the Standard Model (SM) quarks and gluons, using the CDF detector at the Tevatron √s = 1.96 TeV p$\bar{p}$ collider. An inclusive search for squarks and gluinos pair production is performed in events with large E<sub>T</sub> and multiple jets in the final state, based on 2 fb<sup>-1</sup> of CDF Run II data. The analysis is performed within the framework of minimal supergravity (mSUGRA) and assumes R-parity conservation where sparticles are produced in pairs. The expected signal is characterized by the production of multiple jets of hadrons from the cascade decays of squarks and gluinos and large missing transverse energy E<sub>T</sub> from the lightest supersymmetric particles (LSP). The measurements are in good agreement with SM predictions for backgrounds. The results are translated into 95% confidence level (CL) upper limits on production cross sections and squark and gluino masses in a given mSUGRA scenario. An upper limit on the production cross section is placed in the range between 1 pb and 0.1 pb, depending on the gluino and squark masses considered. The result of the search is negative for gluino and squark masses up to 392 …
Date: May 19, 2010
Creator: De Lorenzo, Gianluca
System: The UNT Digital Library
Information Seeking Behavior of Crime Scene Investigators in the Turkish National Police (open access)

Information Seeking Behavior of Crime Scene Investigators in the Turkish National Police

This exploratory research is the first one among occupational information seeking behavior studies that focuses on information seeking behaviors of the crime scene investigators. The data used in this dissertation were gathered via a self-administrated survey instrument from 29 cities in Turkey. Findings obtained from the data analyses show that there is a strongly positive relationship between the experience of the crime scene investigators and the use of personal knowledge and experience as a primary information source (experience is operationalized with age, service years in policing, and service years in crime scene investigation units). The findings also suggest that increasing of the level of education is negatively related to relying on immediate colleagues as an information source among the crime scene investigators. These findings are consistent with related literature and theory. The data analysis shows that crime scene investigators work in cities with higher population rates have more complaint scores than those who work in cities with lower population rates across Turkey. The findings from the data analysis may suggest valuable implications to defeat the barriers between crime scene investigators and information sources. The researcher drew a proposed theoretical framework of an information behavior concept in the context of crime …
Date: May 2010
Creator: Demircioglu, Mehmet
System: The UNT Digital Library
Development and application of QM/MM methods to study the solvation effects and surfaces (open access)

Development and application of QM/MM methods to study the solvation effects and surfaces

Quantum mechanical (QM) calculations have the advantage of attaining high-level accuracy, however QM calculations become computationally inefficient as the size of the system grows. Solving complex molecular problems on large systems and ensembles by using quantum mechanics still poses a challenge in terms of the computational cost. Methods that are based on classical mechanics are an inexpensive alternative, but they lack accuracy. A good trade off between accuracy and efficiency is achieved by combining QM methods with molecular mechanics (MM) methods to use the robustness of the QM methods in terms of accuracy and the MM methods to minimize the computational cost. Two types of QM combined with MM (QM/MM) methods are the main focus of the present dissertation: the application and development of QM/MM methods for solvation studies and reactions on the Si(100) surface. The solvation studies were performed using a discreet solvation model that is largely based on first principles called the effective fragment potential method (EFP). The main idea of combining the EFP method with quantum mechanics is to accurately treat the solute-solvent and solvent-solvent interactions, such as electrostatic, polarization, dispersion and charge transfer, that are important in correctly calculating solvent effects on systems of interest. A …
Date: January 1, 2010
Creator: Dibya, Pooja Arora
System: The UNT Digital Library
The Transfer and Sustainability of a School-Wide Writing Program: Year 2. (open access)

The Transfer and Sustainability of a School-Wide Writing Program: Year 2.

Writing is an important life skill that all students need in order to succeed in today's society. However, proficient writing skills develop over time, requiring years of quality instruction combined with motivation, encouragement, and lots of practice. School-wide writing is an approach that provides specific writing instruction in a consistent manner across all grade levels, allowing students to develop increasingly complex writing skills and strategies over time. Implementation of programs, such as school-wide writing, requires teachers to transfer new understandings and skills from the training room to the classroom as well as efforts to sustain the program over time. This multiple case study examines the characteristics of an elementary school-wide writing program that was introduced in the field by local teachers and transferred five years later to another school in the same district. The study also examines factors affecting the transfer and sustainability of the program during the second year of implementation. Findings from the study indicate that the elements of school-wide writing transferred from School 1 to School 2 at a low road level of transfer. Factors affecting transfer included inquiry, ongoing training, support systems, authentic writing experiences, and time. Factors contributing to sustainability included ongoing support, accountability, communication, …
Date: August 2010
Creator: Dickson, Violet Myers
System: The UNT Digital Library
The Influence of Income, Ethnicity, and Parenting on Child Health (open access)

The Influence of Income, Ethnicity, and Parenting on Child Health

Children in low-income and ethnic minority families are more likely to be in poor health, which may impact physical and economic well-being in adulthood. This study explored how maternal depression and parenting efficacy were associated with child health outcomes in a sample of low-income African American and Latino families. Results demonstrated that children in optimal health were more likely to have mothers with high parenting efficacy and fewer depressive symptoms. Differences between African American and Latino families illustrated the importance of considering both socioeconomic and racial and ethnic disparities in child health simultaneously. Parent characteristics may be opportune targets for addressing child health disparities, and future research should focus on understanding these associations and identifying parent behaviors associated with child health.
Date: August 2010
Creator: Dier, Shannon E.
System: The UNT Digital Library
Geographic Distance, Contact, and Family Perceptions of Quality Nursing Home Care (open access)

Geographic Distance, Contact, and Family Perceptions of Quality Nursing Home Care

The effect of frequency of nursing home contact on family perceptions of quality care is the focus of this research. A family member characteristic, such as geographic distance from the nursing home, affects his or her frequency of contact with the nursing home. Frequency of contact, in turn, affects family perceptions of the care his or her loved one receives in the nursing home. The theoretical framework for this study is based on Allport's intergroup contact theory, which posits that when four contact conditions - institutional support, equal status, common goals, and intergroup cooperation - are present in an intergroup situation, a reduction in anxiety between groups is likely to occur. Regression analysis tested the stated hypotheses using survey data collected from 275 family members of residents in 10 Dallas-Ft. Worth area nursing homes. This study is among the first to quantify family geographic distance, finding that family geographic distance is a significant negative predictor of nursing home contact. Additionally, results build on Allport's theory by extending its' usefulness to nursing home organizations in two distinct ways. First, findings support Allport's premise that contact alone between groups - i.e., family members and nursing home staff - is insufficient for increasing …
Date: May 2010
Creator: Dillman, Jennifer L
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
System: The UNT Digital Library
Effects of Adult Romantic Attachment and Social Support on Resilience and Depression in Patients with Acquired Disabilities (open access)

Effects of Adult Romantic Attachment and Social Support on Resilience and Depression in Patients with Acquired Disabilities

The acquirement of a disability (e.g., spinal cord injury, traumatic brain injury, amputation, multi trauma) is a risk factor for psychological disturbance (e.g., depression). Research has established that social support and secure attachment are protective factors against psychological disturbance. Attachment patterns have also been associated with differences in perceived social support. Secure attachment and higher perceived social support have been implicated in greater levels of resilience but need to be validated with a population of individuals who have acquired a disability. The Experiences in Close Relationships, Social Provisions Scale, Connor-Davidson Resilience Scale, Personal Health Questionnaire - 9 Depression Scale, and a Demographic were administered to 102 adult inpatients at a rehabilitation hospital undergoing an individualized rehabilitation program. Two MANOVAs were conducted to examine the direct associations of attachment classifications with the major dependent variables, as well as the various social support subscales. Path analysis tested two mediational models suggested by literature. Model 1 assessed the mediating role of attachment anxiety and attachment avoidance on the effect of social support on depression and resilience. Model 2 assessed the mediating role of social support on the effect of attachment anxiety or attachment avoidance on depression and resilience. Partial support was obtained for …
Date: August 2010
Creator: Dodd, Zane
System: The UNT Digital Library
Characterizing Noise and Harmonicity: The Structural Function of Contrasting Sonic Components in Electronic Composition (open access)

Characterizing Noise and Harmonicity: The Structural Function of Contrasting Sonic Components in Electronic Composition

This dissertation examines the role of noise in shaping the form of several recent musical compositions. This study demonstrates how the contrast of noisy sounds and harmonic sounds can impact the structure of compositions. Depending on context, however, the specific use and function of noise can vary substantially from one work to the next. The first portion of this paper describes methods for quantifying noise content using FFT analysis procedures. A number of tests on instrumental and synthetic sound sources are described in order to demonstrate how the analysis system may react to certain sounds. The second part of this document consists of several analyses of whole musical works. Works for acoustic instruments are examined first, followed by works for electronic media. During these analyses, it becomes clear that while the use of noise in each work is based largely upon context, some common patterns do exist across different works. The final portion of the paper examines an original work which was written with the function of noise specifically in mind. The original work is put through the same analysis procedures as works seen earlier in the paper, and some conclusions are drawn regarding both the possibilities and limitations of …
Date: May 2010
Creator: Dribus, John Alexander
System: The UNT Digital Library
School Authority Over Off-Campus Student Expression in the Electronic Age: Finding a Balance Between a Student's Constitutional Right to Free Speech and the Interest of Schools in Protecting School Personnel and Other Students from Cyber Bullying, Defamation, and Abuse (open access)

School Authority Over Off-Campus Student Expression in the Electronic Age: Finding a Balance Between a Student's Constitutional Right to Free Speech and the Interest of Schools in Protecting School Personnel and Other Students from Cyber Bullying, Defamation, and Abuse

In Tinker v. Des Moines Independent School District, the Supreme Court ruled that students have speech rights in the school environment unless the speech causes or is likely to cause 1) a substantial disruption, or 2) interferes with the rights of others. The Supreme Court has yet to hear a case involving school officials' authority to regulate electronically-delivered derogatory student speech, and no uniform standard currently exists for determining when school authorities can discipline students for such speech when it occurs off campus without violating students' First Amendment rights. The purpose of this dissertation is to examine 19 federal and state court decisions in which school authorities were sued for disciplining students for electronically delivered, derogatory speech. Eighteen of these cases involved student speech that demeaned or defamed school teachers or administrators. Only one involved speech that demeaned another student. Each case was analyzed to identify significant factors in court holdings to provide a basis for the construction of a uniform legal standard for determining when school authorities can discipline students for this type of speech. The full application of Tinker's first and second prongs will provide school officials the authority needed to address this growing problem while still protecting …
Date: December 2010
Creator: Dryden, Joe
System: The UNT Digital Library
Tracing the Path of Sustainable Development through Major International Conferences: A Brief History and Overview of Sustainable Development 1964-2002 (open access)

Tracing the Path of Sustainable Development through Major International Conferences: A Brief History and Overview of Sustainable Development 1964-2002

Starting with the idea that unsustainable practices contribute to issues of social justice and poverty as much as to ecological issues. Chapter 1 traces the origins of the terms sustainable and development individually to see how it is that they came together. Chapter 2 traces the major international conferences and documents and their use of the terms sustainable development. Chapter 3 takes a phenomenology approach to get a bit deeper into sustainable development. I examine the most commonly cited definition of sustainable development as well as a broader definition of sustainable development as a process of change. Chapter 4 examines the field of environmental ethics and argues that constant debates over value distract policy makers from the central question of what morally motivates people to support environmental ethics views. Chapter 5 examines the institution and regime building process, and the conclusion offers three questions to measure our progress.
Date: May 2010
Creator: Dunn, Benjamin P.
System: The UNT Digital Library
Stretching the Flexible Myosin II Subfragment Using the Novel Gravitational Force Spectroscope, and the Uncoiling of S2 (open access)

Stretching the Flexible Myosin II Subfragment Using the Novel Gravitational Force Spectroscope, and the Uncoiling of S2

Familial Hypertrophic cardiomyopathy (HCM) causes ventricle walls to thicken and often leads to sudden death especially in adults. Mutations in the subfragment 2 (S2) of &#946;-cardiac myosin are implicated in the genetic disorder. This S2 region is a coiled-coil rod region resulting from the dimeric form of myosin II. It has been proposed that an elastic quality allows normal S2 to absorb force during the powerstroke according to the sliding filament model. To test the flexibility of single molecules of S2 against levels of physiological force, the Gravitational Force Spectrometer (GFS) is being developed. This novel system employs a standard microscope on an equatorial mount that allows the spectrometer to be rotated freely in space. Stationary glass beads are attached to a microscope slide where the molecule is tethered between the stationary bead and a smaller mobile bead. The GFS is oriented so that the force of gravity can act on the mobile bead and so impart a small force to the tethered subfragment. Additionally, a video system in conjunction with ImageJ software makes a distance measurement of the molecule possible with a resolution of around 11 nm. The S2 can be stretched parallel or perpendicular to the coiled coil …
Date: May 2010
Creator: Dunn, James W.
System: The UNT Digital Library
Measurement of single-target spin asymmetries in the electroproduction of negative pions in the semi-inclusive deep inelastic reaction n{up_arrow}(e,e'{pi}{sup -})X on a transversely polarized {sup 3}He target (open access)

Measurement of single-target spin asymmetries in the electroproduction of negative pions in the semi-inclusive deep inelastic reaction n{up_arrow}(e,e'{pi}{sup -})X on a transversely polarized {sup 3}He target

The experiment E06010 measured the target single spin asymmetry (SSA) in the semiinclusive deep inelastic (SIDIS) n{up_arrow}(e, e'{pi}{sup -})X reaction with a transversely polarized {sup 3}He target as an e#11;ective neutron target. This is the very #12;rst independent measurement of the neutron SSA, following the measurements at HERMES and COMPASS on the proton and the deuteron. The experiment acquired data in Hall A at Je#11;erson Laboratory with a continuous electron beam of energy 5.9 GeV, probing the valence quark region, with x = 0.13 {rt_arrow} 0.41, at Q{sup 2} = 1.31 {rt_arrow} 3.1 GeV{sup 2}. The two contributing mechanisms to the measured asymmetry, viz, the Collins effect and the Sivers effect can be realized through the variation of the asymmetry as a function of the Collins and Sivers angles. The neutron Collins and Sivers moments, associated with the azimuthal angular modulations, are extracted from the measured asymmetry for the very #12;first time and are presented in this thesis. The kinematics of this experiment is comparable to the HERMES proton measurement. However, the COMPASS measurements on deuteron and proton are in the low-x region. The results of this experiment are crucial as the first step toward the extraction of quark transversity …
Date: June 1, 2010
Creator: Dutta, Chiranjib
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
System: The UNT Digital Library
A Study of African American Students' Completion of an Accounting Degree at a Private University (open access)

A Study of African American Students' Completion of an Accounting Degree at a Private University

The purpose of this qualitative study was to identify factors that may have influenced the choice of major and the persistence to graduation of six African American accounting majors who attended and graduated from a private, predominantly white university from the academic years 2003 through 2009. A set of indicators based on several retention studies was selected for the purpose of identifying pre-college, off-campus, and on-campus factors that influenced students' choice of major and persistence to graduate with a major in accounting. The major findings of this study were that early skill development prior to the college experience, family support, and cultural socialization influenced the participants' ability to choose a major associated with their skill set. Their persistence to graduation was attributed to that choice. With regard to future studies, expansion of research on African Americans in higher education will give direction for administrators seeking to increase the number of under-represented students in fields where there is a marketplace need.
Date: December 2010
Creator: Eddington, Alicia F.
System: The UNT Digital Library
Self-Objectification and Sport Participation: Do the Gendered Makeup and Competitive Level of the Team Matter? (open access)

Self-Objectification and Sport Participation: Do the Gendered Makeup and Competitive Level of the Team Matter?

The purposes of this study were to (a) investigate differences in self-objectification, self-surveillance, body shame, and flow among female athletes on all-women's and coed ultimate frisbee teams at different competitive levels, and (b) examine the objectification theory model across groups. Participants (n = 112) completed online surveys including a demographic questionnaire, trait and state versions of the Self-Objectification Questionnaire, Body Surveillance and Body Shame subscales of the Objectified Body Consciousness Scale, and the Flow State Scale. No differences in self-objectification, self-surveillance, or body shame were found, although highly competitive athletes experienced more flow than lower competitive teams. Relationships were found between self-objectification, self-surveillance, and body shame, but not for flow, partially supporting the objectification theory model.
Date: May 2010
Creator: Ede, Alison
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.
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.
System: The UNT Digital Library
Using Geographic Information Systems for the Functional Assessment of Texas Coastal Prairie Freshwater Wetlands Around Galveston Bay (open access)

Using Geographic Information Systems for the Functional Assessment of Texas Coastal Prairie Freshwater Wetlands Around Galveston Bay

The objective of this study was to deploy a conceptual framework developed by M. Forbes using a geographic information system (GIS) approach to assess the functionality of wetlands in the Galveston Bay Area of Texas. This study utilized geospatial datasets which included National Wetland Inventory maps (NWI), LiDAR data, National Agriculture Imagery Program (NAIP) imagery and USGS National Land Cover data to assess the capacity of wetlands to store surface water and remove pollutants, including nitrogen, phosphorus, heavy metals, and organic compounds. The use of LiDAR to characterize the hydrogeomorphic characteristics of wetlands is a key contribution of this study to the science of wetland functional assessment. LiDAR data was used to estimate volumes for the 7,370 wetlands and delineate catchments for over 4,000 wetlands, located outside the 100-yr floodplain, within a 2,075 square mile area around Galveston Bay. Results from this study suggest that coastal prairie freshwater wetlands typically have a moderate capacity to store surface water from precipitation events, remove ammonium, and retain phosphorus and heavy metals and tend to have a high capacity for removing nitrate and retainremove organic compounds. The results serve as a valuable survey instrument for increasing the understanding of coastal prairie freshwater wetlands …
Date: May 2010
Creator: Enwright, Nicholas
System: The UNT Digital Library
Factors Affecting Revictimization in Survivors of Childhood Sexual Abuse (open access)

Factors Affecting Revictimization in Survivors of Childhood Sexual Abuse

Structural equation modeling was used to examine how childhood sexual abuse (and other associated variables, such as family functioning and experiencing multiple forms of abuse) relates to revictimization and psychological distress. Participants were women who participated in Project HOW: Health Outcomes of Women interviews, a longitudinal study that spanned six waves of interviews. Only women with a history of childhood sexual abuse were included in the present study (n=178). Experiencing nonsexual child maltreatment in addition to childhood sexual abuse appears directly related to adult sexual and physical revictimization and indirectly related to psychological distress. Childhood sexual abuse alone was not predictive of revictimization or psychological abuse. This suggests that other mediating factors may explain the relation between CSA and revictimization found in other research. Clinical implications based on the results of the present study emphasize the importance of identifying children who have experienced multiple forms of abuse as particularly at risk for future victimization. In addition, providing interventions with a focus on education and empowerment might decrease risk for future violence and subsequent emotional maladjustment. Potential future research could examine the treatment outcomes and efficacy of these interventions as well as identify those mediating factors that increase the risk for …
Date: August 2010
Creator: Ericksen, Stephanie J.
System: The UNT Digital Library