UNT Theses and Dissertations - 95 Matching Results

Search Results

Does Family Quality of Life Change? Evaluation of a Group Parent-coaching Package

Description: Improving family quality of life is an important goal when working with families of children with autism. Researchers have attempted to measure changes by developing indices of quality such as affect, stress, and confidence. The purpose of this study was to examine the effects of a group parent-coaching program on measures aimed at addressing quality: a) parent confidence, stress and affect ratings; b) child affect ratings; c) the frequency of coordinated joint attention (CJA); and d) parent report of satisfaction and efficacy. Over the course of four weeks, the coaching program involved group presentations, discussions, video sharing, and problem solving, and individual in-vivo coaching sessions regarding specific child skill development. Results from the five parent-child dyads suggested increases in areas associated with quality of life. Results are discussed in the context of quality themes and mixed methods research.
Date: December 2012
Creator: Wiles, Amber Marie
Partner: UNT Libraries

Dolores Dyer: Women's Basketball and the American Dream

Description: Dolores Dyer played from 1952-1953 for the Texas Cowgirls, a barnstorming women's basketball team that provided a form of entertainment popular throughout the United States in that era. The story of Dyer's life demonstrates how a woman could attempt to achieve the American dream—a major theme in American history—through success in athletic competition. Dyer's participation with the Texas Cowgirls also provides a look into the circumstances that limited women's participation in professional sport during the mid-twentieth century. Women's sports studies, although some are very thorough, have gaps in the research, and women's barnstorming basketball is one of the areas often overlooked. In light of this gap, this thesis relies on a variety of sources, including primary documents from unpublished collections, archived materials, and original oral histories from several members of the Texas Cowgirls team. This thesis contains analysis of the socioeconomic factors that influenced Dolores Dyer's maturation into a professional basketball player, examines what the American dream meant to her, and evaluates the extent to which she achieved it. Overall, it constructs a social history that can serve as a foundational source for further study of women in sports during the twentieth century.
Date: December 2012
Creator: Roberts, Jackie
Partner: UNT Libraries

Down Syndrome and Self-esteem: the Media's Portrayal of Self-esteem in Characters Who Have Down Syndrome

Description: Representations of people with a developmental disability are virtually not covered in the media. Although there is little coverage of people with developmental disabilities in the media, there are a few entertainment television characters who have Down syndrome and are represented in the media. This study will take a look at the history of how people with disabilities were represented in the media and examine how two television characters with Down syndrome were portrayed on the shows by examining their self-esteem. This study seeks to focus on portrayal of people with Down Syndrome because the physical features that people with Down Syndrome possess are easy to identify. Specifically, the study examines the portrayal of self-esteem in two television characters, Corky Thatcher (Life Goes On) and Becky Faye Jackson (Glee). The researcher will also examine how the portrayal of self-esteem in the two characters is similar or different in people who have Down Syndrome. In the study the researcher found that the representation of the character Corky was different from the character Becky. But both characters tackled issues that affected the Down Syndrome community and it affected their self-esteem. Corky and Becky were different from the interviewees in the way they realized their competencies. Although the interviewees who have Down Syndrome and the television characters used self-evaluation differently to evaluate one's own self-esteem, they all seem to exhibit a positive level of self-esteem.
Date: December 2012
Creator: Gee, Courtney
Partner: UNT Libraries

Ecological Forms of Life: Wittgenstein and Ecolinguistics

Description: 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.
Partner: UNT Libraries

Educational Performance: Texas Open Enrollment Charter High Schools Compared to Traditional Public High Schools

Description: The study examined mathematics and English student achievement, attendance rates, dropout rates, and expenditures per pupil for Texas high school students in both open-enrollment charter schools and traditional public high schools for the 2009–2010 school year. All data were assembled using archived information found at the Texas Education Agency (TEA). This information included the TEA report entitled Texas Open Enrollment Charter Schools Evaluation; TEA Snapshot Yearly Report; and Academic Excellence Indicator System (AEIS) data files. Microsoft Excel (Version 2010) was used to randomly select traditional public high schools categorized as Title 1 and non-Title 1 for comparison with Title 1 and non-Title 1 open-enrollment charter high schools. The IBM Statistical Package for the Social Sciences (SPSS) (IBM Statistics Version 20) was used for a one-way analysis of variance (ANOVA) conducted between one independent variable (charter or traditional school) and five dependent variables (mathematics exit-level TAKS scores, English exit-level TAKS scores, attendance rates, dropout rates, and expenditures per pupil). Traditional public high school students had higher or better average mean values than charter schools for mathematics exit-level TAKS scores, English exit-level TAKS scores, attendance rates, dropout rates, and expenditures per pupil. The ANOVA found that four of the five dependent variables were statistically significant at the 0.05 confidence level for the independent variable of school type, whether charter or traditional school. There was no significant difference found between the schools for attendance rates. Effect size calculations, using the eta-squared method, confirmed the comparisons with significant differences.
Date: December 2012
Creator: Jackson, Nokomis “Butch,” Jr.
Partner: UNT Libraries

The Effects of a Group Parent-coaching Package on the Behavior of Children with Autism and Their Parents

Description: Support for parents is an important part of treatment programs for children diagnosed with autism. Parent training programs have generally focused on prescribed goals in one-on-one training settings with measures directly related to the goals. Of interest here are the few studies that included collaborative goals, expanded measures, and group training. Benefits of such approaches include the establishment of natural communities of reinforcement and better understanding of the breadth of effects. The purpose of this study was to determine if a group coaching approach would be effective in changing a large range of parent and child skills. This experiment involved group sessions (presentations, discussion, video sharing, and problem solving) and three individual in-vivo coaching sessions. The intervention took place over the course of four weeks. Direct measures included a parent skills checklist and child target behaviors. Results indicated an overall improvement on most measures that maintained or improved at follow-up.
Date: December 2012
Creator: Vaughn, Brittany M. L.
Partner: UNT Libraries

Effects of a Self-care Intervention for Counselors on Compassion Fatigue and Compassion Satisfaction

Description: This study investigated the impact of a psychoeducational and experiential structured counselor self-care curriculum, developed by Drs. Charles and Kathleen Figley, on compassion fatigue and the prevention of professional impairment as measured by the Professional Quality of Life (ProQOL), Version 5. Volunteer licensed professional counselors, supervisors, and interns from four children's advocacy centers in Texas were assigned to treatment group (n = 21; 20 females, 1 male; mean age 34.4 years) or waitlist control group (n = 21; 19 females, 2 males; mean age 34.6 years). Participating counselors identified themselves ethnically as 64% Caucasian, 26% Hispanic, 7% African-American, and 2% Native-American. Employing a quasi-experimental design, three reliability-corrected analysis of covariance (ANCOVA) were utilized to analyze the data with an alpha level of .05 to assess statistical significance and partial eta squared to assess effect size. With pre-test scores as the covariate, results revealed in the experimental group a statistically significant reduction with large treatment effect for burnout (p = .01; partial ?2 = .15), a statistically nonsignificant reduction with a medium effect for secondary traumatic stress (p = .18; partial ?2 = .05), and a statistically nonsignificant increase with a medium effect for compassion satisfaction (p = .06; partial ?2= .09). Findings supported the use of this curriculum to train counselors on self-care as required of professional counselors by the American Counseling Association code of ethics and listed as a necessary skill in the standards of the Council for Accreditation of Counseling and Related Educational Programs.
Date: December 2012
Creator: Koehler, Christine Marie Guthrie
Partner: UNT Libraries

Effects of Peripheral Nerve Injury on the Cells of the Dorsal Root Ganglion: a Role for Primary Cilia

Description: Primary cilia are ubiquitous sensory organelles found on most cell types including cells of the dorsal root ganglia (DRG). The DRG are groups of peripheral neurons that relay sensory information from the periphery to the CNS. Other cell types in the DRG include a type of glial cell, the satellite glial cells (SGCs). The SGCs surround the DRG neurons and, with the neurons, form functional sensory units. Currently are no reports describing the numbers of DRG cells that have cilia. We found that 26% of the SGCs had primary cilia. The incidence of cilia on neurons varied with neuron size, a property that roughly correlates with physiological characteristics. We found that 29% of the small, 16% of the medium and 5% of the large neurons had primary cilia. Primary cilia have been shown to have a role in cell proliferation in a variety of cell types. In some of the cells the cilia mediate the proliferative effects of Sonic hedgehog (Shh). In the CNS, Shh signaling through primary cilia affects proliferation during development as well as following injury, but no studies have looked at this function in the PNS. The SGCs and neurons of the DRG undergo complex changes following peripheral nerve injury such as axotomy. One marked change seen after axotomy is SGC proliferation and at later stages, neuronal death. We found that following axotomy there is a significant increase in the percentage of SGCs with primary cilia. We also found a significant increase in the percentage of medium-sized neurons with primary cilia. In other experiments we tested the idea that Shh plays a role in SGC proliferation. When Shh signaling was blocked following axotomy we found decreased proliferation of SGCs. This is the first report of a change in the percentage of cells with cilia following injury in ...
Date: December 2012
Creator: Smith, Sarah K.
Partner: UNT Libraries

Endogenous Information and Inter-state War Expansion

Description: Scholars have long debated the causes of late third party state joining in ongoing inter-state wars. This research has generally concluding that peace-time conditions, measured in terms of: third party capabilities; proximity to warring states; and inter-state alliances, are determining factors in the decision to join. However, these studies utilize theories derived from static pre-war measures of capabilities and motivation to explain late joining; indeed, the same measures that fail to predict participation at war's outset. Further, extant research has no explanation for why weak and non-proximate states every participate. Existing theory thus fails to provide a comprehensive explanation of joining behavior. This project contends that a resolution lies the interaction between pre-war conditions and intra-war events. Intra-war events that are allowed to vary on a per battle basis, including change in combat location and alliance entry and exit from combat, reveal new information about the war and its progress, thereby forcing third party states to recalculate their initial decision to abstain in relation to their pre-existing situation. Incorporation of intra-war processes helps to better explain decisions by third party states to join ongoing inter-state wars late in their development, and why states that frequently choose to abstain (e.g., weak states) ever choose to participate. This project is executed using a combination of ex post facto historical case studies, a theory of joining based on pre and intra-war environments, and large-N empirical analysis on all inter-state wars 1823-1988, conducted utilizing a novel collection of event-level data based on inter-state war battles.
Date: December 2012
Creator: Liebel, Steven R.
Partner: UNT Libraries

Étude Comparative De Messages Publicitaires Anglophones Et Francophones À La Lumière D'éléments Culturels [Comparative Study of English and French Advertisements Through a Cultural Lens]

Description: This thesis aims to demonstrate the crucial role of cultural aspects such as attitudes, values, social common places, and expectations in the international advertising industry. Through the analysis of written advertisements used in the United States and France, general trends regarding various commercial sectors and products (automobiles, electronics, cosmetics, and so forth) are highlighted and explored. From a linguistic perspective, the purpose of this thesis is not only to observe the semantic differences between translations of the same slogans and messages, but also to draw attention to the tools used in doing so.
Date: December 2012
Creator: Tison, Jean-Bernard
Partner: UNT Libraries

Examining the Effects of Apparel Attributes on Perceived Copyright Infringement and the Relationship Between Perceived Risks and Purchase Intention of Knockoff Fashion

Description: The growth of fast fashion retailers, availability of knockoff fashion apparel, and proposed apparel copyright law prompted this study. Fast fashion retailers are expanding rapidly and producing knockoffs fashion apparel in a matter of weeks, but current U.S. copyright laws do not protect apparel. The primary purpose of this study was to identify prominent visual fashion apparel attributes that could determine perceived copyright infringement. A secondary purpose was to examine the effects of fashion apparel attributes on perceived copyright infringement, perceived risk, and purchase intention. A sequential exploratory mixed method approach was used to explore the relationship between: Attributes, perceived copyright infringement, perceived risk, and purchase intention. This study consisted of a: Study one, study two, and study three. Twelve hypotheses were proposed, and five were supported. Quality significantly affected both perceived copyright infringement and purchase intention. Performance, social, and asset significantly affected purchase intention of knockoff fashion apparel.
Date: December 2012
Creator: Chaykowsky, Kelly
Partner: UNT Libraries

An Exploratory Study of the Comprehension, Retention and Action of the Denton County Older Population in Regards to Disaster Preparedness Education

Description: The purpose of this exploratory study was to operationalize the responses from a sample of the community dwelling older population from Denton County, Texas on disaster preparedness education given by Denton County Health Department (DCHD) personnel. The goals and objectives were drawn from the Texas Public Health and Medical Emergency Management 5-Year Strategic Plan 2012-2016. It was hypothesized that after the disaster preparedness education was received, then comprehension, retention, and application of the information would increase and the goals set forth by the DCHD would be reached. Thirteen sites were used to educate the 224 participants between August 2011 and April 2012. The data were received using a pre-test survey before the training, a post-test immediately after the training, and a follow-up survey call approximately 30 days later. Using Cronbach's alpha, logistic regression and regression analysis through SAS, the data revealed that all DCHD goals were met by this training method and outcome which include the sample population increasing comprehension, retention, and action on the information learned.
Date: December 2012
Creator: Knight, Rebekah P.
Partner: UNT Libraries

Fidget, Sway, and Swerve: Three Works Inspired By Movement From the Intricate Maneuvers Series

Description: Intricate Maneuvers is a series of musical works that were composed using movement as a model for compositional processes and forms. This essay presents in-depth analyses of three works from the series; Fidget, Sway: The Mildest Form of Falling, and Swerve for Chamber Ensemble. The analysis of each work highlights correlations between the musical characteristics of that work and the temporal, spatial, contextual, and psychological implications of the motion after which it was modeled. The third chapter also demonstrates the ways in which the creation of Sway was influenced by materials and processes taken from Ruth Crawford's String Quartet 1931. In order to investigate the question of how life experiences can function as models for compositional processes, the essay examines precedents for the compositional modeling of extra-musical ideas and images in the works of Bed?ich Smetana, Elliott Carter and Roger Reynolds. It also discusses approaches to modeling movement in music created for dance. Throughout the Intricate Maneuvers series, movement is modeled not merely to create an association between a musical work and a particular movement pattern, but rather to infuse the compositions with the dynamism that defines a particular kinetic experience.
Date: December 2012
Creator: Summar, Sarah Page
Partner: UNT Libraries

The Fifth Humor: Ink, Texts, and the Early Modern Body

Description: This dissertation tracks the intimate relationship between writing and the body to add new dimensions to humoral criticism and textual studies of Renaissance literature. Most humor theory focuses on the volatile, permeable nature of the body, and its vulnerability to environmental stimuli, neglecting the important role that written texts play in this economy of fluids. I apply the principles of humor theory to the study of handwritten and printed texts. This approach demonstrates that the textual economy of the period—reading, writing, publishing, exchanging letters, performing all of the above on stage—mirrors the economy of fluids that governed the humoral body. Early modern readers and writers could imagine textual activities not only as cerebral, abstract concepts, but also as sexual activities, as processes of ingestion and regurgitation. My study of ink combines humoral, historical materialist, and ecocritical modes of study. Materialist critics have examined the quill, paper, and printing press as metaphors for the body; however, the ink within them remains unexamined. This dissertation infuses the figurative body of the press with circulating passions, and brings to bear the natural, biochemical properties that ink lends to the texts it creates. Considering the influence of written and printed materials on the body in early modern poetry and drama requires consideration of the murky liquid from which these texts were composed. For early moderns, writing began with the precise, anatomical slicing of a goose feather, with the crushing of oak galls into wine or rainwater, with the application of heat and ferrous sulfate. These raw materials underwent a violent transformation to fill early modern inkwells. As a result of that mystical concoction, the fluid inside these vessels became humoral. The ink on a page represented one person's passions potentially invading the body of another. Therefore, ink serves as more than a metaphor for ...
Date: December 2012
Creator: Polster, Kristen Kayem
Partner: UNT Libraries

Frances Farenthold: Texas' Joan of Arc

Description: Born in 1926, Frances "Sissy" Tarlton Farenthold began her exploration of politics at a young age. In 1942, Farenthold graduated from Hockaday School for Girls. In 1945, she graduated from Vassar College, and in 1949, she graduated from the University of Texas School of Law. Farenthold was a practicing lawyer, participated in the Corpus Christi Human Relations Commission from 1964 to 1969, and directed Nueces County Legal Aid from 1965 to 1967. In 1969, she began her first term in the Texas House of Representatives. During her second term in the House (1971-1972), Farenthold became a leader in the fight against government corruption. In 1972, she ran in the Democratic primary for Texas governor, and forced a close run-off vote with Dolph Briscoe. Soon afterwards in 1972, she was nominated as a Democratic vice-presidential candidate at the Democratic convention, in addition to her nomination as the chairperson of the National Women's Political Caucus. Farenthold ran in the Democratic primary for governor again in 1974, but lost decisively. From 1976 until 1980, she was the first woman president of Wells College, before coming back to Texas and opening a law practice. For the next three decades, Farenthold practiced law, taught at the University of Houston, and furthered her activism for the environment, as well as women's, minority's, gay and lesbian, and immigrant's rights. She currently lives in Houston and continues working towards these goals.
Date: December 2012
Creator: Fields-Hawkins, Stephanie
Partner: UNT Libraries

The "Good" Mother: Ideology, Identity, and Performance

Description: The purpose of this study is to understand the power and influence of the institution of motherhood and how it is shaped by culture. More specifically this research explores the ideology that shapes our understanding of the good mother in the contemporary United States; how this ideology affects the way mothers view their identity; and how both the ideology and identity shape actions and performance. Twenty women were interviewed in North Texas and the results were: first, this group of mothers recognizes the ideology of the good mother, but does not accept all components of this ideology; next, the identity of mother is the primary identity for most of these women; and, last, performance is most greatly influenced by socio-economic status and the support system that mothers have in place.
Date: December 2012
Creator: Vigil, Jennifer M.
Partner: UNT Libraries

Group 10 Catalyzed Olefin Hydroarylation

Description: Alkyl-arenes are important industry feedstock chemicals that are used as solvents, pharmaceutical precursors, and polymer monomer units. One alkyl-arene, ethylbenzene, is the main focus of this dissertation, and is produced in the million ton a year scale. As alkyl-arenes are important commodity chemicals, catalytic olefin hydroarylation is a lucrative alternative for their production rather than Friedel-Crafts alkylation or various coupling reactions that have lower atom economy, require strong acids, or are energetically demanding. Currently catalytic olefin hydroarylation still suffers from decomposition pathways of the active catalytic complexes, side reactions that lead to waste products, and unfavorable activation barriers, which represent high temperature and pressure. Modifications to the catalytically active system bipyridine platinum(II) (bpyPtII), through computational methods, are explored herein. The work presented here investigates catalytic olefin hydroarylation in order to mitigate the aforementioned difficulties. Included in this study are changes to the electronic profile of the supporting ligand, bpy, through the addition of electron withdrawing or electron donating R groups (methoxy, nitro), definite ligand replacements such as bpy to hydridotris(pyrazolyl)borate (Tp), changes in metal oxidation (II to IV), and replacing the metal center from Pt to Ni. Nickel was selected as a possible alternative to platinum as it is more Earth abundant reducing the monetary requirement for the catalyst. In addition to having a different catalytic energetic profile from platinum. Ni as expected could only facilitate single step hydrogen atom transfers due to its inability to access higher oxidations states.
Date: December 2012
Creator: Gonzalez, Hector Emanuel
Partner: UNT Libraries

Heterosexist Harassment and Rejection, Emotional Social Support and Perceived Stress in a Lesbian, Gay and Bisexual Sample

Description: The minority stress theory suggests LGBs experience greater stress levels due to their sexual minority identities; thus, they are more prone to psychological distress. Poor mental health is linked to internalized homophobia and heterosexism. However, affirmative social support may mitigate the stress response via the buffering hypothesis. My model posits that LGBs are more likely to report perceived stress; however, affirmative social support can mitigate stress. I investigated the relationship between perceived stress and sexual minority identity. I explored the relationship between heterosexism, emotional support and perceived stress and the moderating role of social support in my LGB sample. I conducted a hierarchical linear regression to test my model, which accounted for 29% of the variance in perceived stress. Heterosexism and emotional support were significantly associated with perceived stress. I failed to find a moderating role of emotional support. Limitations, strengths, future research and implications are discussed.
Date: December 2012
Creator: Fritz, Sarah-Mee Hesse
Partner: UNT Libraries

The Highsmith Men, Texas Rangers

Description: The Highsmith Men is a general historical narrative of four prominent men who happened to be Texas Rangers. The story begins in Texas in 1830 and traces the lives of Samuel Highsmith, his nephew, Benjamin Franklin Highsmith, and Samuels's sons, Malcijah and Henry Albert Highsmith, who was the last of the four to pass away, in 1930. During this century the four Highsmiths participated in nearly every landmark event significant to the history of Texas. The Highsmith men also participated in numerous other engagements as well. Within this framework the intent of The Highsmith Men is to scrutinize the contemporary scholarly conceptions of the early Texas Rangers as an institution by following the lives of these four men, who can largely be considered common folk settlers. This thesis takes a bottom up approach to the history of Texas, which already maintains innumerable accounts of the sometimes true and, sometimes not, larger than life figures that Texas boasts. For students pursuing studies in the Texas, the American West, the Mexican American War, or Civil War history, this regional history may be of some use. The early Texas Rangers were generally referred to as "Minute Men" or "Volunteer Militia" until 1874. In this role, the Highsmith men participated in many historic Texas engagements including but not limited to the Siege of Béxar, the battle of the Alamo, San Jacinto, the Cordova Rebellion, Plum Creek, the Mexican Invasions of 1842, the Mexican War, the Civil War, Salado Creek, Brushy Creek, and the capture of Sam Bass. Not only did people like the Highsmiths, who were largely considered "common folk," participate in these battles, they were also Texas Rangers. None of the Highsmith men were full time Texas Rangers, which discredits prominent stereotypes. The Highsmith Men shows that the Texas Ranger institution and the ...
Date: December 2012
Creator: Edwards, Cody
Partner: UNT Libraries

Identity of African American Characters in Newbery Medal and Newbery Honor Award Winning Books: a Critical Content Analysis of Books From 1991 to 2011

Description: The purpose of this study was to conduct a critical content analysis of the African American characters found in Newbery Medal award winning books recognized between the years of 1991 and 2011. The John Newbery Medal is a highly regarded award in the United States for children's literature and esteemed worldwide. Children's and adolescents' books receive this coveted award for the quality of their writing. Though these books are recognized for their quality writing, there is no guideline in the award criteria that evaluated the race and identity of the characters. Hence, there are two overarching research questions that guided this study. The first question asked: To what extent are the African American characters in each award winning book represented? Foci in answering this question were the frequency of African American characters and the development of their ethnic identities. The second question asked: How are the African American characters' intergroup attitudes and interactions represented? Foci in answering this question examined the frequency of intergroup interactions and the characters' attitudes within the context of each book. The theoretical framework that undergirded this study is critical literacy, which encourages adults and youth to examine issues of diversity and social justice through their reading. Eighteen books met the criteria for the study, which provided 98 African American characters for investigation through content analysis. The qualitative methodology used frequency counts, anecdotal notes and questionnaires to analyze the characters. Findings revealed two key themes: the characterization of ethnic identity as a reflection of society and African American characters as models of agency. Further themes became evident in this study as well: the evolution of cultural authenticity, strong African American female characters, importance of the African American family and the acknowledgement of African American involvement in history. These findings are significant because they provided evidence of ...
Date: December 2012
Creator: Morton, Tami Butler
Partner: UNT Libraries

Impact of Video Presentation Features on Instructional Achievement and Intrinsic Motivation in Secondary School Learners

Description: This study analyzed instructional achievement and intrinsic motivation among 21st century secondary students utilizing a video lecture incorporating both student reaction cutaway images and immediate content interaction within the lecture. Respondents (n = 155) were from multiple classes and grade levels at a suburban Texas high school. Four groups of students viewed the identical lecture with differing video and content interaction treatments. Students responded to a pretest/posttest survey to assess academic achievement in addition to an intrinsic motivation instrument to assess student interest. Group one (the control group) viewed the 12 minute lecture without enhancement. A second group viewed the identical lecture with student reaction shots inserted in the video. Another group viewed the lecture with content question intervention inserted into the video. The final group saw the lecture with the student reaction shots and content question intervention combined in the video. A repeated measures multivariate analysis of variance (MANOVA) was used to compare results from a 14 item pretest/posttest. Combined, the groups showed no significance (p = .069) indicating no associations were identified by the experiment. Although no association was identified, this may be a reflection of the generic nature of the video lecture and the lack of association with the experiment and actual classroom content within their courses. Students also completed the Intrinsic Motivation Instrument which was analyzed using a MANOVA. Although no significant findings were present in either group viewing the student reaction or the content question interaction treatments individually, the group viewing the combined treatment showed significance in three scales: Interest/Enjoyment (p = .007), Perceived Competence (p = .027) and Effort/Importance (p = .035) Recommendations for refinement of the current experiment as well as future studies are provided.
Date: December 2012
Creator: Bland, Ronald B.
Partner: UNT Libraries

Impacts of Postmodernity Factors on the Association Between Maternal Distress and Children's Delinquency Among Low-income Families

Description: This study investigates the effects of postmodern factors on the relationship between maternal distress and children's delinquency. It seeks to understand the factors associated with distress levels of mothers whose children exhibit delinquency in order to potentially decrease the cost associated with mental health problems especially in mothers. Another goal of this study is to contribute to the sociological analysis of mental health problems which seem to be the reserved domain of the discipline of psychology and related subfields. The data came from the third wave of the 3-city study with N = 1835. The ages of the children range from 5 to 18 years old. The analysis of the data using regression analysis suggests children's delinquency significantly affects maternal distress in mothers. The study also indicates postmodernity factors did not moderate the association between maternal distress and children's delinquency. However, postmodern factors have significant, separate, and direct effects on maternal distress. For example, employment and religion have positive influences on maternal distress. The research points toward weakness in the postmodern perspective. It also underlines the importance of a sociological approach to the assessment and treatment of distress problems among mothers with low-income. Agencies working with low-income families should integrate the sociological approach in their intervention programs. Additionally, the study uncovers possible problems with assessment criteria used by these agencies to determine eligibility for assistance among low-income families such as education levels; and consequently calls for further investigation.
Date: December 2012
Creator: Bessa, Yawo
Partner: UNT Libraries

An Integrated Approach to Determine Phenomenological Equations in Metallic Systems

Description: It is highly desirable to be able to make predictions of properties in metallic materials based upon the composition of the material and the microstructure. Unfortunately, the complexity of real, multi-component, multi-phase engineering alloys makes the provision of constituent-based (i.e., composition or microstructure) phenomenological equations extremely difficult. Due to these difficulties, qualitative predictions are frequently used to study the influence of microstructure or composition on the properties. Neural networks were used as a tool to get a quantitative model from a database. However, the developed model is not a phenomenological model. In this study, a new method based upon the integration of three separate modeling approaches, specifically artificial neural networks, genetic algorithms, and monte carlo was proposed. These three methods, when coupled in the manner described in this study, allows for the extraction of phenomenological equations with a concurrent analysis of uncertainty. This approach has been applied to a multi-component, multi-phase microstructure exhibiting phases with varying spatial and morphological distributions. Specifically, this approach has been applied to derive a phenomenological equation for the prediction of yield strength in a+b processed Ti-6-4. The equation is consistent with not only the current dataset but also, where available, the limited information regarding certain parameters such as intrinsic yield strength of pure hexagonal close-packed alpha titanium.
Date: December 2012
Creator: Ghamarian, Iman
Partner: UNT Libraries

Investigating the Effects of Polypharmacy Among Elderly Patients with Diabetes on Glycemic Control and Clinical Outcomes in Home Health Care

Description: The focus of this research study is glycemic control in the presence of multiple morbidities and polypharmacy in homebound individuals with Type 2 diabetes aged 65 years and older. The research method is a quantitative retrospective cohort study of discharged patients of a nonprofit community-based home health agency from January 1, 2010, to December 31, 2011, using OASIS data. Glycemic control is assessed using the hA1C laboratory test following the recommendation of the American Diabetes Association. The study documents a moderate significant association between glycemic control, polypharmacy and comorbid conditions, indicating that homebound individuals with Type 2 diabetes aged 65 years and older are less likely to have optimal glycemic control in the presence of multiple morbidities and polypharmacy. There continues to be a need for scientific research in this population cohort; and the dose-response association between antidiabetic therapy interventions designed to lower blood glucose levels in the presence of chronic disease and polypharmacy.
Date: December 2012
Creator: Bernier, Shelia Alathia
Partner: UNT Libraries