Degree Level

Language

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
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
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
Correspondence Between Verbal Behavior About Reinforcers and Performance Under Schedules of Reinforcement. (open access)

Correspondence Between Verbal Behavior About Reinforcers and Performance Under Schedules of Reinforcement.

Important advancements have been made in the identification of reinforcers over the past decade. The use of preference assessments has become a systematic way to identify preferred events that may function as reinforcers for an individual's behavior. Typically, preference assessments require participants to select stimuli through verbal surveys or engagement with stimuli as preferred or non-preferred. Not all studies go on to directly test the effects of the preferred stimuli, and even fewer studies directly test for the effects of the non- preferred stimuli. The present study systematically identified preferred and non-preferred stimuli in adult human subjects by verbal report and then proceeded to test the effects of both verbally reported preferred and non preferred events on single and concurrent schedules of reinforcement. The results are discussed in terms of contemporary concerns regarding preference and reinforcer assessments.
Date: August 2006
Creator: Bekker-Pace, Ruthie
System: The UNT Digital Library
Creole Angel: The Self-Identity of the Free People of Color of Antebellum New Orleans (open access)

Creole Angel: The Self-Identity of the Free People of Color of Antebellum New Orleans

This thesis is about the self-identity of antebellum New Orleans's free people of color. The emphasis of this work is that French culture, mixed Gallic and African ancestry, and freedom from slavery served as the three keys to the identity of this class of people. Taken together, these three factors separated the free people of color from the other major groups residing in New Orleans - Anglo-Americans, white Creoles and black slaves. The introduction provides an overview of the topic and states the need for this study. Chapter 1 provides a look at New Orleans from the perspective of the free people of color. Chapter 2 investigates the slaveownership of these people. Chapter 3 examines the published literature of the free people of color. The conclusion summarizes the significance found in the preceding three chapters and puts their findings into a broader interpretive framework.
Date: August 2006
Creator: Hobratsch, Ben Melvin
System: The UNT Digital Library
Dead Men Talking: Content Analysis of Prisoners' Last Words, Innocence Claims and News Coverage from Texas' Death Row (open access)

Dead Men Talking: Content Analysis of Prisoners' Last Words, Innocence Claims and News Coverage from Texas' Death Row

Condemned prisoners in Texas and most other states are given an opportunity to make a final statement in the last moments before death. An anecdotal review by the author of this study over the last 15 years indicates that condemned prisoners use the opportunity for a variety of purposes. They ask forgiveness, explain themselves, lash out at accusers, rail at the system, read poems, say goodbyes to friends and family, praise God, curse fate - and assert their innocence with their last breaths. The final words also are typically heard by a select group of witnesses, which may include a prisoner's family and friends, victim's relatives, and one or more journalists. What the public knows about a particular condemned person's statement largely depends on what the journalists who witness the executions chose to include in their accounts of executions, the accuracy of their notes, and the completeness of the statements that are recorded on departments of correction websites or records. This paper will examine, through rhetorical and content analyses, the final words of the 355 prisoners who were executed in Texas between 1976 and 2005, identify those who made unequivocal claims of innocence in their final statements, and analyze news …
Date: August 2006
Creator: Malone, Dan F.
System: The UNT Digital Library
Do As They Say, and As They Do: An Integrated Approach to the Study of Norm Influence on Truth Commission Initiation, 1976-2003 (open access)

Do As They Say, and As They Do: An Integrated Approach to the Study of Norm Influence on Truth Commission Initiation, 1976-2003

Truth commissions are bodies established in political transition, and they have the stated purpose of reckoning with human rights abuses committed by members of former regimes. The question driving this research is "Why have truth commissions increased so rapidly in the last 20 years?" This study moves beyond current research, which suggests that particular domestic political circumstances alone determine choice of transitional justice mechanisms. I argue that an international rule of behavior, the transitional restorative norm, has emerged and spread to decision-makers in countries of transition. In support of this notion, I perform a pre-theoretical historical analysis of transitional justice and develop a theory of decision-making in transition-which is later tested with quantitative statistics. This integrated approach allows for increased scientific rigor in the examination of international norms. Ultimately, the study demonstrates an interrelationship between shared ideas and political environments in the determination of domestic policy.
Date: August 2006
Creator: Dancy, Geoffrey Thomas
System: The UNT Digital Library

Documentary Film: Access Denied

Access: Use of this item is restricted to the UNT Community
Sculptor Eric McGehearty incorporates dyslexia, a learning disability, into his artwork to express his challenges with his limited ability to recognize and understand the written word. The film Access Denied focuses on Eric and his disability. Recognized in 1896, dyslexia has been studied and researched by scientists and educators. New assistive technology is now available to aid dyslexics in reading and writing. Specialized schools provide techniques to improve student learning. However, some options are not readily available to the general public; therefore, information about how to deal with the disability is not easily accessed. The aims of this documentary are to raise awareness of available resources to assist with learning as well as to demonstrate a relationship between art and dyslexia.
Date: August 2006
Creator: Bell, Leah Helanie
System: The UNT Digital Library

Documentary Film: Love's Story

Access: Use of this item is restricted to the UNT Community
Abstract Love's Story is a documentary journey into the storytelling world, where the themes of love and memory connect the audience to a unique set of film interviewees. Marie and Alexis provide interesting recollections about their individual pasts, while Cherie guides the course of the film with her expert theories about the nature of storytelling. What initially appears a simple film, actually provides a multi-tiered commentary tackling issues of memory, love, and perseverance. The film equally highlights the nature of storytelling to encourage audiences to critically dissect the stories around them in the world. Presented visually through minimalist animation and aurally through a mix of interviews, sound effects, and music, Love's Story is a poetic film about the process of storytelling and the interconnectedness of the memories individuals tell.
Date: August 2006
Creator: Meiser, Cory
System: The UNT Digital Library
Educational Opportunities Available for Women in Antebellum Texas (open access)

Educational Opportunities Available for Women in Antebellum Texas

The matter of formal education for women in the antebellum South raises many questions, especially for the frontier state of Texas. Were there schools for young women in antebellum Texas? If so, did these schools emphasize academic or ornamental subjects? Did only women from wealthy families attend? This study answered these questions by examining educational opportunities in five antebellum Texas counties. Utilizing newspapers, probate records, tax records, and the federal census, it identified schools for girls in all of the counties and found that those schools offered academic as well as ornamental subjects. Almost all of the girls who attended those schools came from privileged families. Schools were available for young women in antebellum Texas, but generally only those from wealthy families were able to attend.
Date: August 2006
Creator: Cochrane, Michelle L.
System: The UNT Digital Library
The Effect of Consumer Shopping Motivations on Online Auction Behaviors: An Investigation of Searching, Bidding, Purchasing, and Selling (open access)

The Effect of Consumer Shopping Motivations on Online Auction Behaviors: An Investigation of Searching, Bidding, Purchasing, and Selling

The purposes of the study were to: 1) identify the underlying dimensions of consumer shopping motivations and attitudes toward online auction behaviors; 2) examine the relationships between shopping motivations and online auction behaviors; and 3) examine the relationships between shopping attitudes and online auction behaviors. Students (N = 341) enrolled at the University of North Texas completed self-administered questionnaires measuring shopping motivations, attitudes, online auction behaviors, and demographic characteristics. Using multiple regression analyses to test the hypothesized relationships, shopping motivations and shopping attitudes were significantly related to online auction behaviors. Understanding the relationships is beneficial for companies that seek to retain customers and increase their sales through online auction.
Date: August 2006
Creator: Jeon, Sua
System: The UNT Digital Library
Electrochemical Study of Under-Potential Deposition Processes on Transition Metal Surfaces (open access)

Electrochemical Study of Under-Potential Deposition Processes on Transition Metal Surfaces

Copper under-potential deposition (UPD) on iridium was studied due to important implications it presents to the semiconductor industry. Copper UPD allows controlled superfilling on sub-micrometer trenches; iridium has characteristics to prevent copper interconnect penetration into the surrounding dielectric. Copper UPD is not favored on iridium oxides but data shows copper over-potential deposition when lower oxidation state Ir oxide is formed. Effect of anions in solution on silver UPD at platinum (Pt) electrodes was studied with the electrochemical quartz crystal microbalance. Silver UPD forms about one monolayer in the three different electrolytes employed. When phosphoric acid is used, silver oxide growth is identified due to presence of low coverage hydrous oxide species at potentials prior to the monolayer oxide region oxide region.
Date: August 2006
Creator: Flores Araujo, Sarah Cecilia
System: The UNT Digital Library

Employee empowerment: Relationships between location in the hierarchy, span of control, and industry type on perceptions of empowerment.

Access: Use of this item is restricted to the UNT Community
The current study seeks to examine the relationships between perceptions of employee empowerment and perceptions of leadership, span of control, and industry type. Participants were gathered from an archival source employing a high school alumni e-mail group (n = 361) and a survey from 9 organizations (n = 647) and combined into a larger sample (n = 1008). The participants took Bodner's (2005) Assessment of Employee Empowerment and Assessment of Empowering Leadership instruments. Support was found to suggest that people report being less empowered than they believe that top management would report about them. Also, participants reported that their leader was less empowering than they believed top management would report about the leader. Span of control was found to impact perceptions of empowerment. Production workers reported feeling more empowered than workers in service industries. Participants did not report that leaders were more empowering if they were higher in the hierarchy (executive) than lower levels (coach, employee). Also, a respondent's position did not affect the relationship between job type and feelings of empowerment. This study suggests that the organizational design (span of control) and industry type may affect empowerment initiatives, while lower levels of the organization may view empowerment much differently …
Date: August 2006
Creator: Turner, Jon T., Jr.
System: The UNT Digital Library

English language learners: Does summer school make a difference in young children's literacy scores?

Access: Use of this item is restricted to the UNT Community
Many school districts consider literacy and oral language as a top priority for pre-kindergarten students. In the district under study, pre-kindergarten English language learner (ELL) students are encouraged to attend a special summer school program to increase their oral language ability in English. This study compared three groups of children: ELL students attending summer school v. ELL students not attending summer school v. English speaking students not attending summer school. The students' primary reading inventory scores from the end of pre-kindergarten to the middle of kindergarten in the areas of reading, writing and oral language were compared. As expected, ELLs who attended summer school showed significant growth in oral language development from the beginning of summer school to the end of summer school. While it was hypothesized that ELL students attending summer school would show more improvement in oral language than other children over time, there was no significant difference between summer school and non-summer school children's scores by the middle of kindergarten.
Date: August 2006
Creator: Wickert, DeAnna S.
System: The UNT Digital Library
Ethnic Minorities and Prohibition in Texas, 1887 to 1919 (open access)

Ethnic Minorities and Prohibition in Texas, 1887 to 1919

Historians of the prohibition movement in Texas have assumed that the state's main ethnic minorities-Germans, Mexican Americans and African Americans-strongly opposed restrictions on the production, sale, and transportation of alcoholic beverages. This study focuses on the voting patterns in fifteen counties chosen to represent varying percentages of these ethnic minorities in their populations during three statewide anti-alcohol elections (1997, 1911, and 1919) in an effort to determine exactly the extent of opposition to prohibition on the part of ethnic minorities in Texas. It also examines the actions of the prohibitionists and anti-prohibitionists in courting the vote of ethnic minority groups. This analysis and comparison of election results in fifteen counties confirms overwhelming opposition to prohibition on the part of all three of Texas's ethnic minorities.
Date: August 2006
Creator: Sutton, Jared Paul
System: The UNT Digital Library

Evaluation of hydrogen trapping in HfO2 high-κ dielectric thin films.

Access: Use of this item is restricted to the UNT Community
Hafnium based high-κ dielectrics are considered potential candidates to replace SiO2 or SiON as the gate dielectric in complementary metal oxide semiconductor (CMOS) devices. Hydrogen is one of the most significant elements in semiconductor technology because of its pervasiveness in various deposition and optimization processes of electronic structures. Therefore, it is important to understand the properties and behavior of hydrogen in semiconductors with the final aim of controlling and using hydrogen to improve electronic performance of electronic structures. Trap transformations under annealing treatments in hydrogen ambient normally involve passivation of traps at thermal SiO2/Si interfaces by hydrogen. High-κ dielectric films are believed to exhibit significantly higher charge trapping affinity than SiO2. In this thesis, study of hydrogen trapping in alternate gate dielectric candidates such as HfO2 during annealing in hydrogen ambient is presented. Rutherford backscattering spectroscopy (RBS), elastic recoil detection analysis (ERDA) and nuclear reaction analysis (NRA) were used to characterize these thin dielectric materials. It was demonstrated that hydrogen trapping in bulk HfO2 is significantly reduced for pre-oxidized HfO2 prior to forming gas anneals. This strong dependence on oxygen pre-processing is believed to be due to oxygen vacancies/deficiencies and hydrogen-carbon impurity complexes that originate from organic precursors used in …
Date: August 2006
Creator: Ukirde, Vaishali
System: The UNT Digital Library
Exploring the Private Music Studio: Problems Faced by Teachers in Attempting to Quantify the Success of Teaching Theory in Private Lessons through One Method as Opposed to Another (open access)

Exploring the Private Music Studio: Problems Faced by Teachers in Attempting to Quantify the Success of Teaching Theory in Private Lessons through One Method as Opposed to Another

I present strategies and methods for teaching fundamentals of music theory in the context of the private music studio through a variety of techniques and research. Beginning with a background in educational psychology, examples of behaviorist and cognitive teaching models are presented, and how each applies to teaching music is explained. Two detailed examples of actual lessons are presented, coupled with musical examples, to describe both the process and the concepts that can be presented. A qualitative experiment based upon the learning styles of three music students and the effect of different teaching styles when teaching the same concept is presented and discussed in detail.
Date: August 2006
Creator: McKnight, Michael
System: The UNT Digital Library
A Financial Resource Guide for the Beginning Secondary Choral Music Director (open access)

A Financial Resource Guide for the Beginning Secondary Choral Music Director

The purpose of this study was to confirm the necessity of a financial resource guide for beginning secondary choral directors in Texas. Budgetary information was gathered through an on-line survey addressing the financial knowledge of 25 participants made up of choral directors, college professors, fine arts directors and student teachers. Further information was gathered from college course guides, music periodicals and college textbooks. From the gathered survey data, a definite need for better financial education was identified. Collected data also demonstrated the necessity for additional courses to be added to the college curriculum with expanded literature on budgeting. Recommended college courses, as well as a calendar time line, Web sites for on-line music software, fundraising tips and budget proposals are also included resources.
Date: August 2006
Creator: Devous, Donald Michael
System: The UNT Digital Library

Foot and/or Bicycle Patrols in Major Texas Metropolitan Police Departments

Access: Use of this item is restricted to the UNT Community
During the last 25 years in law enforcement in the United States, there has been a universal practice of foot and/or bicycle patrols used to accomplish the goal of police patrol enforcement and the philosophy of community policing in metropolitan areas. These tactics of patrol have also been used in police departments in and around the State of Texas. This report is a research project on six major metropolitan police departments in the State of Texas, analyzing their allocation of foot and/or bicycle patrol units within their urban cities. The study assesses their early history in using these two police tactics to address criminal activity and their progression from foot patrol to bicycle patrol. The findings of this research support the proposition that major Texas police departments have adopted the practices and philosophies of other major urban police departments around the US, by using foot and/or bicycle patrols in their cities. There is evidence that major Texas police departments were using foot patrol during the early 1980s in support of community policing and gradually phased out this practice in the early 1990s to adopt the new enforcement tactic of policing on a bicycle.
Date: August 2006
Creator: Pavlik, Wayne Louis
System: The UNT Digital Library
Gender differences in a prototypical analysis of psychopathy. (open access)

Gender differences in a prototypical analysis of psychopathy.

Psychopathy research has focused primarily on characteristics of male offenders. With little empirical knowledge on psychopathy in women, gender differences within psychopathy are not well understood. To gain a better understanding of these differences, the current study used prototypical analysis to compare ratings of 242 forensic experts when considering their most representative case of male or female psychopathy. The present study investigated gender differences for psychopathic traits and Cluster B personality disorder criteria. Most aspects of psychopathy were less prototypical of female psychopaths than males. In particular, the antisocial behavior facet does not appear to apply to males and females equally. The distinction between Cluster B disorders and psychopathy was more ambiguous in females than males; however, the affective deficits facet differentiated psychopathy from Cluster B disorders across genders. Current research also raises the question of potential diagnostic gender bias in the assessment of psychopathy.
Date: August 2006
Creator: Hazelwood, Lisa L.
System: The UNT Digital Library