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Acceptance and use of corporal punishment among parents of biologic and non-biologic children. (open access)

Acceptance and use of corporal punishment among parents of biologic and non-biologic children.

Objective: Differences between biologic and non-biologic parents' acceptance and use of ordinary corporal punishment and use of explaining/reasoning as a disciplinary tool are examined from a sociobiological theoretical perspective. Method: Cross tabulations are used on data from a national survey conducted by the Gallup Organization in 1995. Results: Contrary to predictions, differences between biologic and non-biologic parents' acceptance of ordinary corporal punishment and the use of explaining/reasoning are not statistically significant. In addition, biologic parents are found to use ordinary corporal punishment significantly more often than non-biologic parents. Conclusions: The sociobiological theoretical perspective likely underestimates the influence of culture and social structure on parent-child interactions.
Date: May 2006
Creator: Hall, Ellie Tiedeman
System: The UNT Digital Library

Accuracy of Self-Reported Height, Weight, and Calculated BMI and Resulting FITNESSGRAM® Healthy Fitness Zone Classification

Access: Use of this item is restricted to the UNT Community
The determination of adiposity in adolescents is often assessed with calculations of body mass indices (BMI). Researchers often obtain these measurements from self-reported (SR) values. The purpose of this study was to determine the accuracy of SR height, weight, and calculated BMI (from height and weight). SR and actual measured (ME) BMI values were compared with standards from the FITNESSGRAM® Healthy Fitness Zone (HFZ) classifications. SR height and calculated BMI were found to be accurate while SR weight was, on average, underreported by 4.77 lbs. Because of these errors in SR height and weight, accuracy of classification into the FITNESSGRAM® HFZ was compromised. Consequently, it is important that researchers ascertain actual values of height and weight when measuring adolescents rather than use those from self-reports.
Date: May 2006
Creator: Rowell, Chelsie Joyce
System: The UNT Digital Library

Accuracy Variations in Human Facial Identification Based on Time of Exposure.

Access: Use of this item is restricted to the UNT Community
This study examined the relationship between time of exposure to the human face and accurate subsequent photo line-up identification. A volunteer group of 124 undergraduate students was divided into three approximately equal sized subgroups. The three groups were then exposed to a video or a portion of a video depicting a theft. Exposure times ranged from two minutes to 30 seconds. The subjects were then given a questionnaire and shown a photo line-up of the mock perpetrator and five foils. Subjects were asked to identify the perpetrator and mark that identification on the questionnaire. Results of the experiment indicated that the longer a subject was exposed the greater the possibility of an accurate identification.
Date: December 2006
Creator: Cowle, Kenneth M.
System: The UNT Digital Library
N-Acylethanolamine (NAE) Profiles Change During Arabidopsis Thaliana Seed Germination and Seedling Growth (open access)

N-Acylethanolamine (NAE) Profiles Change During Arabidopsis Thaliana Seed Germination and Seedling Growth

An understanding of the potential roles as lipid mediators of a family of bioactive metabolites called N-acylethanolamines (NAEs) depends on their accurate identification and quantification. The levels of 18C unsaturated NAEs (e.g. NAE18:2, NAE 18:3, etc.) in wild-type seeds (about 2000 ng/g fw) generally decreased by about 80% during germination and post-germinative growth. In addition, results suggest NAE-degradative fatty acid amide hydrolase (FAAH) expression does not play a major role in normal NAE metabolism as previously thought. Seedlings germinated and grown in the presence of abscisic acid (ABA), an endogenous plant hormone, exhibited growth arrest and secondary dormancy, similar to the treatment of seedlings with exogenous N­lauroylethanolamine (NAE12:0). ABA-mediated growth arrest was associated with higher levels of unsaturated NAEs. Overall, these results are consistent with the concept that NAE metabolism is activated during seed germination and suggest that the reduction in unsaturated NAE levels is under strict temporal control and may be a requirement for normal seed germination and post-germinative growth.
Date: August 2006
Creator: Wiant, William C.
System: The UNT Digital Library

Adolescent Insomnia as a Predictor of Early Adulthood Outcomes

Access: Use of this item is restricted to the UNT Community
Recent research found insomnia is a risk factor for psychiatric disorders in adults. To see if the same would be true in adolescents, the current study re-analyzed data from a national longitudinal study collected by ADDHealth that evaluated health behaviors in 4552 adolescents (mean age 14.9 years [SD 1.7]) at baseline and again 7-8 years later (n = 3489) during young adulthood. Insomnia was reported by 9.2% of the adolescents. Cross-sectionally, adolescent insomnia was associated with alcohol, cannabis, non-cannabis drugs, and tobacco use, and depression after controlling for gender and ethnicity. Prospectively, adolescent insomnia was a significant risk factor for depression diagnosis, suicidal ideation, and the use of depression and stress prescription medications in young adulthood after controlling for gender, ethnicity, and significant baseline variable. In addition, a trend was noted for suicidal attempts.
Date: December 2006
Creator: Roane, Brandy Michelle
System: The UNT Digital Library

Animals That Die

Access: Use of this item is restricted to the UNT Community
The thesis has two parts. Part I is a critical essay entitled "Lessons Under the Amfalula." Part II is the collection of poems entitled "Animals That Die."
Date: December 2006
Creator: Campbell, Susan Maxwell
System: The UNT Digital Library
An Approach Towards Self-Supervised Classification Using Cyc (open access)

An Approach Towards Self-Supervised Classification Using Cyc

Due to the long duration required to perform manual knowledge entry by human knowledge engineers it is desirable to find methods to automatically acquire knowledge about the world by accessing online information. In this work I examine using the Cyc ontology to guide the creation of Naïve Bayes classifiers to provide knowledge about items described in Wikipedia articles. Given an initial set of Wikipedia articles the system uses the ontology to create positive and negative training sets for the classifiers in each category. The order in which classifiers are generated and used to test articles is also guided by the ontology. The research conducted shows that a system can be created that utilizes statistical text classification methods to extract information from an ad-hoc generated information source like Wikipedia for use in a formal semantic ontology like Cyc. Benefits and limitations of the system are discussed along with future work.
Date: December 2006
Creator: Coursey, Kino High
System: The UNT Digital Library
Attachment Styles in a Sample from a Correctional Drug Treatment Facility (open access)

Attachment Styles in a Sample from a Correctional Drug Treatment Facility

Substance abuse and dependence causes many problems in our society. Attachment style may be useful in the etiology of this problem. Using archival data, this study hypothesizes men in a court-ordered facility will be more likely to have an insecure attachment style. The participants were 73 males ages 18-49. The Adult Attachment Scale (AAS) was used to measure adult romantic attachment style. Through cluster analysis and conversion of the subscales of the AAS, four attachment styles were measured. Men were more likely to have an insecure attachment style especially a Fearful style. The study concludes with limitations of the results and a discussion about possible interventions based on attachment style.
Date: December 2006
Creator: Shivpuri, Michelle Yvonne
System: The UNT Digital Library

"The Barroom Girls" and Other Stories

Access: Use of this item is restricted to the UNT Community
This creative thesis is comprised of five original short stories and a critical preface. The preface discusses the changing cultural, sociopolitical, and socioeconomic landscape of the modern American South and the effects-positive, negative, and neutral-these changes have had on the region's contemporary literature, including the short stories contained within.
Date: May 2006
Creator: Mortazavi, Sohale Andrus
System: The UNT Digital Library
Beach Drive: Public Rights and Private Property: A Documentary Film (open access)

Beach Drive: Public Rights and Private Property: A Documentary Film

The Texas Open Beaches Act states that the public beach extends from the water up to the line of vegetation. Once a privately-owned property is submerged, it transfers into state ownership. Because of severe erosion and the shifting nature of vegetation, the Village of Surfside has lost several rows of houses and streets and, currently, over thirty houses are located on the public beach obstructing public access in violation of the Texas Open Beaches Act. The extreme erosion in this small village on the Texas Gulf Coast puts homeowners, property owners, legislators, and beachgoers in difficult positions and many are at odds with one another. The documentary film is structured around rental property owner Russell Clinton, environmentalists Ellis Pickett and Jeff Hooton, and former State Senator A.R. "Babe" Schwartz.
Date: August 2006
Creator: Schoenbaechler, Jessica
System: The UNT Digital Library
Beethoven's Opus 18 String Quartets: Selected First Movements in Consideration of the Formal Theories of Heinrich Koch as Expressed in Versuch Einer Anleitung Zur Composition (open access)

Beethoven's Opus 18 String Quartets: Selected First Movements in Consideration of the Formal Theories of Heinrich Koch as Expressed in Versuch Einer Anleitung Zur Composition

Heinrich Koch completed his treatise in 1793, a pioneering work regarding the musical phrase as well as a sonata form description (lacking that term). Composition of Opus 18 began in 1798, a momentous project for several reasons in Beethoven's early career. Here, the theories expressed in Koch's Versuch are taken as an analytic springboard into a thorough analysis of the first movement of the quartet published no. 3, which was the first composed; additionally, nos. 1 and 6 are explored to a lesser degree. This study in phrase-analysis demonstrates significance in the fundamental ideas of Koch as applied to a masterwork of the turn of the 19th century.
Date: December 2006
Creator: Tompkins, Robert
System: The UNT Digital Library

Between the Waves: Truth-Telling, Feminism, and Silence in the Modernist Era Poetics of Laura Riding Jackson and Muriel Rukeyser

Access: Use of this item is restricted to the UNT Community
This paper presents the lives and early feminist works of two modernist era poets, Laura Riding Jackson and Muriel Rukeyser. Despite differences of style, the two poets shared a common theme of essentialist feminism before its popularization by 1950s and 60s second wave feminists. The two poets also endured periods of poetic silence or self censorship which can be attributed to modernism, McCarthyism, and rising conservatism. Analysis of their poems helps to remedy their exclusion from the common canon.
Date: December 2006
Creator: Cain, Christina
System: The UNT Digital Library
Big Hair and Big Egos: Texan Stereotypes in American Entertainment Media as Formed Through Television Viewing. (open access)

Big Hair and Big Egos: Texan Stereotypes in American Entertainment Media as Formed Through Television Viewing.

This thesis explores the stereotypes of Texans portrayed in American entertainment media, and attempts to identify the reasons for both the existence, and persistence of these images. The study includes a brief history of Texas, and background information on the formulation of stereotypes. Cultivation theory is used to explain the process of stereotypes formed through television viewing. Content analysis of the responses from an on line survey involving 52 participants revealed that people outside the state of Texas have strong perceptions about Texans that are consistent with media representations. As the level of television viewership increased, so did the indelibility of the impressions. Those who watch more television were more likely to perceive the image of Texans as negative, and less likely to change their opinions of Texans after visiting the state.
Date: August 2006
Creator: Burdette, Catherine Bowers
System: The UNT Digital Library
Body Ideals and Weight Bias: Does Ethnicity Make a Difference? (open access)

Body Ideals and Weight Bias: Does Ethnicity Make a Difference?

The current study investigates whether there are there ethnic differences between Caucasian, African American, and Hispanic women in (a) weight bias, (b) body ideals, (c) social awareness and internalization of appearance standards and (d) physical activity in relation to these constructs. Participants included 130 Caucasian, 103 African American, and 52 Hispanic undergraduate female students. Participants completed a demographic survey, the Antifat Attitudes Test, the Figure Rating Scale, the Sociocultural Attitudes toward Appearance Questionnaire, and the Multiethnic Identity Measure questionnaire. No significant ethnic group differences in weight bias emerged. Differences were found for participants' perceptions of the culturally ideal female body shape, as well as awareness and internalization. No relationship was found between physical activity and weight bias, body ideals, and appearance standards. Future researchers should use health weight classifications, in addition to ethnicity, to examine weight bias, body ideals, and physical activity.
Date: August 2006
Creator: Liebig, Yvonne D.
System: The UNT Digital Library
The Castrato Sacrifice: Was it Justified? (open access)

The Castrato Sacrifice: Was it Justified?

One of the greatest mysteries in the history of music is the castrato singers of the Baroque era. Castration has existed for many thousands of years, but for the first time in history, it was used for artistic purposes. Who were these men who seemingly gave up their masculinity for the sake of music? By examining the time period and circumstances in which these musicians lived, an answer may be found. Exploring the economic, social, and political structure of the 17th and 18th centuries may reveal the mindset behind such a strange yet accepted practice. The in-depth study of their lives and careers will help lift the veil of mystery that surrounds them. Was their physical sacrifice a blessing or a curse? Was it worth it?
Date: August 2006
Creator: Sowle, Jennifer
System: The UNT Digital Library
Change in Depression of Spousal Caregivers of Dementia Patients. (open access)

Change in Depression of Spousal Caregivers of Dementia Patients.

Caring for a family member or loved one with dementia places a heavy burden on those providing the care. Caregivers often develop chronic depression because of having to deal with this burden. A great deal of literature has been published discussing coping effectiveness, effects of social support, and other internal and external means of support for the caregiver. However, little has been written about the changes, if any, in depression that the caregiver experiences after the termination of care, either through institutionalization or death of the person with dementia. This study examined whether there is a change in depression of spousal caregivers after institutionalization of the dementia care recipient as well as any changes in depression that may have occurred as a result of the death of the dementia care recipient. Two theoretical models, the wear and tear model and the adaptation model were discussed in terms of caregiver depression after institutionalization of the dementia care recipient. Two other theoretical models, the relief model and the stress model, were discussed in terms of caregiver depression after the death of the dementia care recipient. Datasets from the National Institute on Aging sponsored Health and Retirement Study were analyzed. Results indicate that …
Date: August 2006
Creator: Tweedy, Maureen P.
System: The UNT Digital Library
Characterizations of Continua of Finite Degree (open access)

Characterizations of Continua of Finite Degree

In this thesis, some characterizations of continua of finite degree are given. It turns out that being of finite degree (by formal definition) can be described by saying there exists an equivalent metric in which Hausdorff linear measure of the continuum is finite. I discuss this result in detail.
Date: August 2006
Creator: Irwin, Shana
System: The UNT Digital Library
Clarence R. Huebner: An American Military Story of Achievement (open access)

Clarence R. Huebner: An American Military Story of Achievement

In the eyes of the American public excellence is often overshadowed by brilliance of personality. This is particularly true in the portrayal of many of the country's military leaders in World War II. A prime example of this phenomenon is Douglas MacArthur, whose larger than life persona made him a newspaper fixture during the war despite a series of strategic and tactical blunders that would have led to the sacking of a less visible (and publicly popular) leader. At the level of divisional commanders, this triumph of brilliance over excellence is best exemplified by the two primary leaders of the country's 1st Infantry Division, Terry de la Mesa Allen and Clarence R. Huebner. One was a hard-drinking, swashbuckling leader who led by almost the sheer force of his personality; the other, a plain spoken, demanding officer who believed that organization, planning and attention to detail were the keys to superior battlefield performance. The leadership differences between Allen and Huebner have been documented in multiple publications. What has not been documented is the life of the truly overshadowed general - Huebner. Huebner's transition to the leadership of the 1st Infantry Division (1st ID) constitute only a small period in a military …
Date: May 2006
Creator: Flaig, Steven
System: The UNT Digital Library
CLUE: A Cluster Evaluation Tool (open access)

CLUE: A Cluster Evaluation Tool

Modern high performance computing is dependent on parallel processing systems. Most current benchmarks reveal only the high level computational throughput metrics, which may be sufficient for single processor systems, but can lead to a misrepresentation of true system capability for parallel systems. A new benchmark is therefore proposed. CLUE (Cluster Evaluator) uses a cellular automata algorithm to evaluate the scalability of parallel processing machines. The benchmark also uses algorithmic variations to evaluate individual system components' impact on the overall serial fraction and efficiency. CLUE is not a replacement for other performance-centric benchmarks, but rather shows the scalability of a system and provides metrics to reveal where one can improve overall performance. CLUE is a new benchmark which demonstrates a better comparison among different parallel systems than existing benchmarks and can diagnose where a particular parallel system can be optimized.
Date: December 2006
Creator: Parker, Brandon S.
System: The UNT Digital Library
Coelomic Fluid Protein Profile in Earthworms Following Bacterial Challenge. (open access)

Coelomic Fluid Protein Profile in Earthworms Following Bacterial Challenge.

Proteomic techniques were used to evaluate the protein profile of the earthworm, (Lumbricus terrestris), following a bacterial challenge. One control group received no injection; a second control group received injections of phosphate buffer solution (PBS). The experimental group received injections of PBS containing (Aeromonas hydrophila). After incubation for 12 hours at 20°C, coelomic fluid was collected from each group for analysis by 2-D electrophoresis. There were significant differences in spot appearance and density between control and experimental groups. Sixteen spots showed a two-fold increase in density and 63 showed at least a two-fold decrease in density between samples from control and bacteria-challenged earthworms, respectively, suggesting up- and down-modulation of proteins potentially involved in the earthworm's response to bacterial challenge.
Date: December 2006
Creator: Brooks, Geoffrey Lance
System: The UNT Digital Library
Cognitive Complexity and Construct Extremity in Social and Life Event Construing in Persons with Varied Trauma History (open access)

Cognitive Complexity and Construct Extremity in Social and Life Event Construing in Persons with Varied Trauma History

The purpose of this study was to examine cognitive complexity, extremity, and the relationship between social repertory grids and life events repertory grids (LERG) in people who report a history of trauma. Effects of type of trauma on complexity and extremity scores of each type of grid were examined. Prior research into repertory grids and trauma has used only one type of grid, predominantly social grids or LERGs. Therefore, a natural, progressive step in the grid research involved investigating how individuals integrate social and life event constructs. It was hypothesized, and results show, that there is a positive correlation between complexity scores and extremity scores of social grids and LERGs. However it was not found that there was a negative correlation between trauma history and complexity scores, and that trauma acts as a moderator for cognitive complexity. Instead, it appears that the social facet of experience is key to understanding perception of traumatic experiences. Additionally, number of traumas experienced might affect social construct elaboration.
Date: December 2006
Creator: Shafenberg, Stacey
System: The UNT Digital Library
Compact Operators and the Schrödinger Equation (open access)

Compact Operators and the Schrödinger Equation

In this thesis I look at the theory of compact operators in a general Hilbert space, as well as the inverse of the Hamiltonian operator in the specific case of L2[a,b]. I show that this inverse is a compact, positive, and bounded linear operator. Also the eigenfunctions of this operator form a basis for the space of continuous functions as a subspace of L2[a,b]. A numerical method is proposed to solve for these eigenfunctions when the Hamiltonian is considered as an operator on Rn. The paper finishes with a discussion of examples of Schrödinger equations and the solutions.
Date: December 2006
Creator: Kazemi, Parimah
System: The UNT Digital Library
Comparative Study of RSS-Based Collaborative Localization Methods in Wireless Sensor Networks (open access)

Comparative Study of RSS-Based Collaborative Localization Methods in Wireless Sensor Networks

In this thesis two collaborative localization techniques are studied: multidimensional scaling (MDS) and maximum likelihood estimator (MLE). A synthesis of a new location estimation method through a serial integration of these two techniques, such that an estimate is first obtained using MDS and then MLE is employed to fine-tune the MDS solution, was the subject of this research using various simulation and experimental studies. In the simulations, important issues including the effects of sensor node density, reference node density and different deployment strategies of reference nodes were addressed. In the experimental study, the path loss model of indoor environments is developed by determining the environment-specific parameters from the experimental measurement data. Then, the empirical path loss model is employed in the analysis and simulation study of the performance of collaborative localization techniques.
Date: December 2006
Creator: Koneru, Avanthi
System: The UNT Digital Library

Comparison and Evaluation of Existing Analog Circuit Simulator using Sigma-Delta Modulator

Access: Use of this item is restricted to the UNT Community
In the world of VLSI (very large scale integration) technology, there are many different types of circuit simulators that are used to design and predict the circuit behavior before actual fabrication of the circuit. In this thesis, I compared and evaluated existing circuit simulators by considering standard benchmark circuits. The circuit simulators which I evaluated and explored are Ngspice, Tclspice, Winspice (open source) and Spectre® (commercial). I also tested standard benchmarks using these circuit simulators and compared their outputs. The simulators are evaluated using design metrics in order to quantify their performance and identify efficient circuit simulators. In addition, I designed a sigma-delta modulator and its individual components using the analog behavioral language Verilog-A. Initially, I performed simulations of individual components of the sigma-delta modulator and later of the whole system. Finally, CMOS (complementary metal-oxide semiconductor) transistor-level circuits were designed for the differential amplifier, operational amplifier and comparator of the modulator.
Date: December 2006
Creator: Ale, Anil Kumar
System: The UNT Digital Library