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366 Matching Results
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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
System:
The UNT Digital Library
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
System:
The UNT Digital Library
Explaining Marijuana Use Among Turkish Juveniles: A Test of Hirschi's Social Bonding Theory
Marijuana is the most prevalent illicit drug used in the world and among Turkish juveniles. Although studies have examined marijuana use among Turkish juveniles, none has tested Hirschi's social bonding theory, one of the most frequently tested and applied criminological theories in the United States and other Western and developed countries. This study investigated the empirical validity and generalizability of Hirschi's theory to juveniles' marijuana use in Turkey, a non-Western and developing country. Data on 2,740 Turkish tenth grade students from the 2006 Youth in Europe survey were used. Results from binary logistic regression analyses were generally consistent with the propositions of Hirschi's theory and the findings of previous empirical studies. Regarding the attachment component of the theory, Turkish juveniles who lived in two-parent families and those who were closely monitored by their parents were less likely to have tried marijuana. In addition, teens who were strongly attached to their school and religion were also less likely to have used the drug. As for the commitment component, language grade was negatively associated with marijuana use. None of the involvement items had significant effects on marijuana use in the predicted direction. Participation in club sports had a positive effect on marijuana …
Date:
December 2010
Creator:
Çam, Taner
System:
The UNT Digital Library
The High School Associate Principal: Case Studies of an Emerging Role in Educational Leadership and Administration
Researchers in the field of educational administration have given little attention to the role of the associate principal. The research reported in this dissertation sought to fill that void through a close examination of the roles of the associate principals on two campuses in two different school districts. In addition to illustrating the role of the associate principal, the research examines how experience as an associate principal influences the careers of educational administrators. Data were collected primarily by means of semi-structured interviews with principals and district administrators as well as the associate principals themselves to provide multiple perspectives. Data were summarized in detailed interview logs, coded to discover the themes that were characteristic of each case, then analyzed to identify the patterns within and across the cases. The interviews were also analyzed as narratives reflecting on how experience as an associate principal can shape an educational administrator's career. The interview data were supplemented with documents relating to the associate principals, their campuses, and their districts. The results suggest that the associate principal position is a crucial step on the career ladder to a secondary principalship. Assistant principals with knowledge and skills in curriculum, instruction, and assessment are more likely to …
Date:
December 2010
Creator:
Fox, Kenneth F.
System:
The UNT Digital Library
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
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
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
System:
The UNT Digital Library
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
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
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
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
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'
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
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
Demographic and Psychosocial Contributions to the Expression of Schizotypal Personality Traits.
Previous research suggests there are a number of variables that are associated with the expression of schizotypal personality disorder (SPD) symptoms. Such variables include childhood trauma, depression and anxiety, substance use, normal-range personality traits, ethnicity, and gender. However, research to date has not examined all of these variables in a single study to determine how they may be interrelated or differentially related to SPD symptom domains. Of particular interest is the association of these variables as explained by the diathesis-stress model. This study utilized a convenience sample of 298 undergraduate students to examine a continuous range of scores for symptoms of SPD and how the interrelation of biological factors such as gender and ethnicity and psychosocial factors and stressors such as childhood trauma and personality traits, specifically neuroticism and extroversion, influence the expression of SPD symptoms. It was predicted that anxiety, depression, stress, and childhood trauma would positively correlate to SPD symptoms. It was also hypothesized that neuroticism and substance use would positively correlate to schizotypal traits and extroversion would be negatively correlated to schizotypal traits as measured by the Schizotypal Personality Questionnaire-Brief. It was further hypothesized that psychosocial stressors would be moderated by the aforementioned biological factors.
Date:
December 2010
Creator:
Hernandez, Nikki
System:
The UNT Digital Library
A Case Study of the Impact of the Middle School Data Coach on Teacher Use of Educational Test Data to Change Instruction
With the advent of No Child Left Behind (NCLB) legislation in 2002 and its attendant increases in accountability pressure, many districts and schools currently embrace data analysis as an essential part of the instructional decision making process. In their attempts to overcome low achievement on state-mandated tests, some districts have begun employing data coaches. The study reported here, which was set in three middle schools in a northeast Texas school district, assessed the influence of the campus data coach on a middle school mathematics teachers' use of analyzed data to make instructional decisions. It also examined the extent to which the Data Coach/teacher relationship resolved teacher concerns about data-driven decision making. Phenomenological interviews with data coaches were guided by Seidman's (2006) three-series interview. Measurement of teacher use of data to make decisions was based on the concerns-based adoption model's levels of use interview protocol, stages of concern questionnaire, and innovation configuration map. By the end of one school year, two out of the three teachers never used data to make instructional decisions, although the non-users both had moved closer toward employing the innovation in their classroom. Data indicated all teachers were aware of the innovation, but all three ended the …
Date:
December 2010
Creator:
Hill, Rachelle Phelps
System:
The UNT Digital Library
An Exploratory Study of the Impact of Institutional Policies and Practices of Community and Technical Colleges in Texas on Student Persistence in Online Courses
Online education is the fastest growing form of course delivery of higher education in the United States. It has revolutionized how students and instructors interact in the educational process. Yet students in online courses continue to experience higher attrition rates than their counterparts in traditional face-to-face classes despite the advantages offered by the technology. This study examined the impact that institutional policies and practices at community colleges in the state of Texas have had on student persistence in online courses. It also examined how institutions collect and use data in addressing students' attrition. The findings were used to identify the most effective institutional practices to share with community college systems in Texas in an effort to improve student persistence in online courses across the state. The population for the study consisted of the 50 public two-year community college and the technical college systems in the state of Texas. The study used a mixed method. A theoretical model of institutional impact on online persistence was drawn from the literature review. This model's five categories were then used to construct a survey to collect data on institutional practices and measure the effectiveness in addressing student persistence. Four college systems were identified using …
Date:
December 2010
Creator:
Hills, Fred W.
System:
The UNT Digital Library
Masters No More: Abolition and Texas Planters, 1860-1890
This dissertation is a study of the effects of the abolition of slavery on the economic and political elite of six Texas counties between 1860 and 1890. It focuses on Austin, Brazoria, Colorado, Fort Bend, Matagorda, and Wharton Counties. These areas contain the overwhelming majority of Stephen F. Austin's "Old Three Hundred," the original American settlers of Texas. In addition to being the oldest settled region, these counties contained many of the wealthiest slaveholders within the state. This section of the state, along with the northeast along the Louisiana border, includes the highest concentration of Texas' antebellum plantations. This study asks two central questions. First, what were the effects of abolition on the fortunes of the planter class within these six counties? Did a new elite emerge as a result of the end of slavery, or, despite the liquidation of a substantial portion of their estates, did members of the former planter class sustain their economic dominance over the counties? Second, what were abolition's effects on the counties' prewar political elite, defined as the county judge? Who were in power before the war and who were in power after it? Did abolition contribute to a new kind of politician?
Date:
December 2010
Creator:
Ivan, Adrien D.
System:
The UNT Digital Library
Prolongation in Post-Tonal Music: A Survey of Analytical Techniques and Theoretical Concepts with an Analysis of Alban Berg's Op. 2, No. 4, Warm Die Lüfte
Prolongation in post-tonal music is a topic that music theorists have engaged for several decades now. The problems of applying Schenkerian analytical techniques to post-tonal music are numerous and have invited several adaptations of the method. The bulk of the thesis offers a survey of prolongational analyses of post-tonal music. Analyses of theorists such as Felix Salzer, Allen Forte, Joseph Straus, Edward Laufer, and Olli Väisälä are examined in order to reveal their various underlying theoretical principles. The thesis concludes with an analysis of Alban Berg's Warm die Lüfte from his Op. 2 collection that focuses on the prolongation of a referential sonority that forms the background of the song. The analysis highlights the most significant analytical techniques and theoretical concepts explored in the survey and codifies them in a generally applicable method of post-tonal prolongational analysis.
Date:
December 2010
Creator:
Huff, David, 1976-
System:
The UNT Digital Library
Knowledge and Training in Autism Spectrum Disorders Among Special Education Administrators.
A significant rise in the number of students with autism spectrum disorders (ASD) served in today's schools requires special education administrators to possess knowledge in this area. The purpose of this study was to determine the general knowledge of special education administrators concerning ASD and knowledge of educational programming, to explore their educational training and professional development experiences in ASD, to identify the training needs of special education administrators in ASD, and to determine if knowledge, training and experience in ASD predict litigation. Using survey methods, data were collected from a sample of 106 special education administrators in Texas. Data revealed special education administrators were most knowledgeable of general characteristics, common myths, and instructional strategies, and less knowledgeable of eligibility criteria. Knowledge regarding educational programming for learners with ASD produced mixed results. Logistic regression analysis revealed general autism knowledge, knowledge of educational programming, training, and experience in ASD were not factors predicting litigation. Although results indicated none of the factors explored in this study were predictors of litigation, areas of need regarding professional development were identified. Implications for future research are also discussed.
Date:
December 2010
Creator:
Hughes, Heather L.
System:
The UNT Digital Library
Baseball in the Digital Age: The Role of Online and Mobile Content in Major League Baseball's Media Product Portfolio
This case study evaluated Major League Baseball's (MLB) media product portfolio to identify how broadcast revenues have evolved over the past decade. This research looked back across baseball's long, dysfunctional history with broadcasters in order to recognize the significance of its ambitious use of online content. While MLB had failed to fully utilize the potential of broadcasting, the league's aggressive online strategy through its Advanced Media (MLBAM) division made it the industry leader in broadcasting live streaming sports video. MLBAM expanded its online streaming video to mobile phones and iPad, further expanding the distribution of its content. This research compared MLBAM revenue to traditional broadcast revenue while analyzing the online division's role in promoting the MLB brand. This case study concluded that while MLBAM had made a number of groundbreaking developments, the league could still improve its use of embedded, shared video clips, archived footage and international marketing in order to further extend the brand equity of the MLB, its thirty individual brands and its media product portfolio.
Date:
December 2010
Creator:
Hutton, Brian P.
System:
The UNT Digital Library
Evaluating Social Factors in Diabetes Management by Mexican American Ethnicity
Differences in Mexican American ethnicity, family and friend social support, and importance of diabetes self-management as related to diabetes management in the older adult population were evaluated with the University of Michigan Health and Retirement Study (HRS) 2003 Diabetes Study. Comparisons were made between Mexican Americans with Type II diabetes and similar non-Hispanic Caucasian and African American individuals with Type II diabetes. Neither family/friend social support nor importance of diabetes self-management were significant predictors of HbA1c levels. Results did not support the idea that perception of receiving support from family/friends or placing importance on diabetes self-management covaried with lower HbAlc level (family/friend: beta = -.13, t = -1.47, p = .143; self management: beta = .08, t = .55, p = .584).
Date:
December 2010
Creator:
Huerta, Serina
System:
The UNT Digital Library
Margaret Dale, Adapting the Stage to the Screen: Aesthetic, Appropriation, and Intimacy in Ballet Programming for Post-War BBC Television
This thesis examines the aesthetic of ballets adapted for BBC Television by producer Margaret Dale, beginning with her entrance to the BBC's training program in 1955 and culminating with her commissioned work Houseparty, which aired in 1964. A historical and organizational framework is discussed regarding the BBC's cultural mission and view of arts programming, as well as general developmental milestones in programming contextualizing Dale's working conditions. Particular focus is placed upon the appropriation of Romantic narrative ballets and their significance in reinforcing an aristocratic and culturally divisive structure in the arts. Textual analyses consider issues of restaging, camera placement, and lighting, as well as television's intimacy and relationship to characterization in ballet narratives.
Date:
December 2010
Creator:
Escue, Jessica Margaret
System:
The UNT Digital Library
Soft Landing Ion Mobility Mass Spectrometry: History, Instrumentation and an Ambient Pressure Application
Preparative mass spectrometry is an important method for the synthesis of new materials. Recently, soft landing mass spectrometry has been used to land ions on surfaces to coat or otherwise alter them. Commercial soft landing instruments do not yet exist, and the physical phenomenon of soft landing has not yet been fully described. For future ion mobility soft landing research, the theory of ion mobility, ion optics and soft landing is discussed, and 2 soft landing instruments have been built and described, along with proof of concept experiments for both instruments. Simulations of the process of ion mobility and ion optics for use in these instruments, as well as some preliminary results for the optics are included. Surfaces described include copper on mica and iron on silicon. Self assembly of soft landed ions is observed on the surfaces. The instruments constructed will be useful for future soft landing research, and soft landing can be used for future materials research with special attention focused on the self-assembly of the landed ions.
Date:
December 2010
Creator:
Birdwell, David
System:
The UNT Digital Library
Design and Implementation of Communication Platform for Autonomous Decentralized Systems
This thesis deals with the decentralized autonomous system, in which individual nodes acting like peers, communicate and participate in collaborative tasks and decision making processes. An experimental test-bed is created using four Garcia robots. The robots act like peers and interact with each other using user datagram protocol (UDP) messages. Each robot continuously monitors for messages coming from other robots and respond accordingly. Each robot broadcasts its location to all the other robots within its vicinity. Robots do not have built-in global positioning system (GPS). So, an indoor localization method based on signal strength is developed to estimate robot's position. The signal strength that the robot gets from the nearby wireless access points is used to calculate the robot's position. Trilateration and fingerprint are some of the indoor localization methods used for this purpose. The communication functionality of the decentralized system has been tested and verified in the autonomous systems laboratory.
Date:
December 2010
Creator:
Gottipati, Naga Sravani
System:
The UNT Digital Library