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Analysis of Micro Enterprise Clusters in Developing Countries:  A Case Study of Toluca, Mexico. (open access)

Analysis of Micro Enterprise Clusters in Developing Countries: A Case Study of Toluca, Mexico.

Businesses cluster to achieve agglomeration benefits. However, research in developing countries suggests that the economic environment limits small business’ propensity to benefit from agglomerations. The study examines the location, networking patterns, formal structures and owner characteristics of 1256 micro businesses from ten industries and thirteen sample areas in Toluca, Mexico. First, the thesis analyses whether clustering has a positive impact on the success rates of the surveyed enterprises, e.g. higher sales per employee. On an industry scale only Retail benefits from agglomerations economies. However, results of the neighborhood data show that specific areas benefit from urbanization economies. Overall, the study finds that businesses located within agglomerations, have higher levels of formalization, networking and professional training, hence constituting a more sophisticated base for economic development. Conclusions can be drawn for development policies and programs, arguing for a more differentiated approach of small business development depending on business location and cluster characteristics.
Date: August 2011
Creator: Drauschke, Kristin
System: The UNT Digital Library
Wilderness and Everyday Life. (open access)

Wilderness and Everyday Life.

I challenge the dualistic view of wilderness that has influenced wilderness philosophy, politics and experience in recent years. In its place, I offer an alternative vision that recognizes wilderness areas and working landscapes as complementary elements of a larger, inhabited landscape characterized by a heterogeneous mixture of human-land relational patterns representing various points along an urban-wilderness continuum. In chapters 2 through 4, I explore the philosophical, political and experiential implications of this wilderness-in-context vision. Experienced and understood as part of the landscape we call home, wilderness may engender, renew, and sustain an engaged and integrated wilderness practice involving regular contact with wilderness places, committed activism on behalf of wild lands and their inhabitants, and grounded reflection on the meaning and value of wilderness in our everyday lives.
Date: August 2011
Creator: Friskics, Scott
System: The UNT Digital Library
Responding to Child Sexual Abuse: Exploring the Case Files of Children Under the Age of 6 Admitted to a Children’s Advocacy Center for Evaluation (open access)

Responding to Child Sexual Abuse: Exploring the Case Files of Children Under the Age of 6 Admitted to a Children’s Advocacy Center for Evaluation

Research suggests that roughly 25% of women and 10% of men within the United States were sexually abused at some point during childhood. With such high rates of victimization affecting society, the current study explores a population of children under the age of 6 who were suspected of being sexually victimized and thus admitted to a children’s advocacy center (CAC) for evaluation. This investigation contributes to the literature concerning child sexual abuse (CSA) by exploring the characteristics of these alleged victims, the characteristics of their suspected offenders, the alleged victim’s familial demographics characteristics, and by looking at the data pertaining to the incarceration rates of the suspected offenders identified within the sample.
Date: August 2011
Creator: Glassner, Steven
System: The UNT Digital Library
Toward an Ecological Understanding of the Vendée: Old Myths and New Paradigms (open access)

Toward an Ecological Understanding of the Vendée: Old Myths and New Paradigms

This work explores the motivations of the two major parties in the civil war in the Vendée from 1793 to 1796. It suggests that traditional understandings overemphasize simplistic notions of the idealistic crusade; the Revolutionaries fought for Republican ideals, while the locals fought to defend traditional Catholicism. This thesis suggests that the major motive for both sides was a fight for survival that was framed and expressed in political and religious terms rather than motivated by them. The reason that these motives have been confused is a long misunderstood connection between the means of discourse, the structure of social values, and their connection to any individual’s perceived sense of safety, which suggests an ecological, or holistic, rather than a Manichaean framework.
Date: August 2011
Creator: Strietelmeier, Paul
System: The UNT Digital Library
The Brazos Valley Groundwater Conservation District: A Case Study in Texas Groundwater Conservation (open access)

The Brazos Valley Groundwater Conservation District: A Case Study in Texas Groundwater Conservation

This thesis examines the history of groundwater management through the development of groundwater conservation districts in Texas. Political, economic, ideological, and scientific understandings of groundwater and its regulation varied across the state, as did the natural resource types and quantities, which created a diverse and complicated position for lawmakers and landowners. Groundwater was consistently interpreted as a private property right and case law protected unrestricted use for the majority of the twentieth-century even as groundwater resources crossed property and political boundaries, and water tables declined particularly during the second-half of the century. The case study of the Brazos Valley Groundwater Conservation District describes the complicated history of groundwater in Texas as the state attempted to balance natural resource legislation and private property rights and illuminate groundwater’s importance for the future.
Date: August 2011
Creator: Teel, Katherine
System: The UNT Digital Library
The Influence of Interactivity and Online Store Atmospherics of a 3-D Retail Store in Second Life on Consumer Purchase Intentions (open access)

The Influence of Interactivity and Online Store Atmospherics of a 3-D Retail Store in Second Life on Consumer Purchase Intentions

Second Life, a 3-D virtual world, has evolved as a shopping channel for both consumers and retailers. This channel of retailing offers interactive environment, allows designing atmospherics, and provides enjoyable shopping experience as compared to website stores. The purpose of the study was: (1) to identify the key features of Second Life stores and (2) to determine the relationship of the Second Life store features with consumer purchase intentions. The online survey was administered in Second Life by an external research agency, and 249 usable surveys were collected. The data were analyzed utilizing factor analysis and regression. Three key features of Second Life stores were explored in this study. These three features were: (1) interactivity via the two components of two-way communication and active control, (2) store atmospherics, and (3) shopping enjoyment. Regression analysis showed that shopping enjoyment and two-way communication (i.e., the presence of an avatar sales representative) were significant predictors of purchase intention in Second Life stores, while active control and store atmospherics did not influence purchase intentions.
Date: August 2011
Creator: Thombre, Avantika
System: The UNT Digital Library
Relation Between the FITNESSGRAM® Ftness Assessment and Self-Reported Physical Activity Questions (open access)

Relation Between the FITNESSGRAM® Ftness Assessment and Self-Reported Physical Activity Questions

The FITNESSGRAM® is regularly used to assess physical fitness (PF) of adolescents. In addition to the PF assessment, the FITNESSGRAM also includes self-report physical activity (PA) items. The purpose of this study was to examine whether the self-report aerobic, muscular strengthening, and flexibility PA behavior items indicated adolescents’ cardiorespiratory, muscular strength, and flexibility fitness and their body composition. Logistic regression analysis was used to examine the relation between the amount of PA and PF status. Adolescents not meeting the recommended PA amount had significantly higher odds of not achieving a healthy fitness status. Meeting the recommended PA amount was associated with achieving healthy PF status. Thus, adolescents’ amounts of aerobic, muscular strengthening, and flexibility PA were an indication of their corresponding health-related PF standard.
Date: August 2011
Creator: Tucker, Jacob
System: The UNT Digital Library
PTSD Symptoms and Dominant Emotional Response to a Traumatic Event: An Examination of DSM-IV Criterion A2 (open access)

PTSD Symptoms and Dominant Emotional Response to a Traumatic Event: An Examination of DSM-IV Criterion A2

To qualify for a diagnosis of posttraumatic stress disorder the DSM-IV requires that individuals report dominant emotions of fear, helplessness, and horror during the trauma. Despite this stipulation, traumatic events can elicit a myriad of emotions other than fear such as anger, guilt or shame, sadness, and numbing. The present study examined which emotional reactions to a stressful event in a college student sample are associated with the highest levels of PTSD symptoms. Results suggest mixed support for the DSM-IV criteria. Although participants who experienced a dominant emotion of fear reported high PTSD symptomatology, participants who experienced anger, disgust-related emotions, and sadness reported PTSD symptoms of equivalent severity. Participants also reported experiencing other emotions more frequently than they reported experiencing fear. Coping style was unrelated to dominant emotion experienced; however, dysfunctional coping was associated with worse outcomes in terms of PTSD symptoms. These results have diagnostic and treatment limitations.
Date: August 2011
Creator: Valentine, Lisa M.
System: The UNT Digital Library
Lack of Evaluation as Evaluation: Analysis of an African American Woman’s Narrative (open access)

Lack of Evaluation as Evaluation: Analysis of an African American Woman’s Narrative

This thesis examines an African American woman’s narrative about the day that her daughter was shot. Like many personal narratives of “frightening experiences,” the speaker in this narrative highlights the peak of her story, making sure her point is salient. In earlier analyses, it has been shown that evaluation tends to cluster around the peak of the narrative. In “The day my daughter got shot” we see that this event-filled narrative is not evaluated as predicted as there is no increased usage of evaluative devices at one single point in the narrative. Instead, it is a change in patterning of a number of linguistic and paralinguistic devices that conspire to bring special attention to the peak of the narrative. By examining multiple devices at once, it is seen that they create a cumulative effect that makes the story interesting and exciting, resulting in a successful narrative.
Date: August 2011
Creator: van Drunen, Vanessa
System: The UNT Digital Library
A Stimulus Control Analysis of Imprinting in a Human-Reared Pigeon (open access)

A Stimulus Control Analysis of Imprinting in a Human-Reared Pigeon

Events that occur early in the life of birds greatly influence social and sexual preferences throughout the course of life. Traditionally, this is explained by a learning process known as imprinting. Young birds are thought to imprint to early stimuli, causing the development of permanent preferences for those stimuli. In the present study, imprinting is examined with respect to behaviors of an adult human-reared pigeon in several conditions. The subject was either presented with no stimulus, a conspecific stimulus, a novel stimulus, a human stimulus, or the human and novel stimuli simultaneously. Several phases within these conditions were employed to pinpoint the variables that produced the most social and sexual behavior. The results showed that while some conditions produced unclear behavior, other conditions produced very clear indications of sexual preference for humans and fear of conspecifics. The results suggest that the concept of imprinting may not be needed to explain the sexual preference of the subject, and that operant contingencies may play a large role in sexual behavior.
Date: August 2011
Creator: Varnon, Christopher A.
System: The UNT Digital Library
True Tales of the Atom (open access)

True Tales of the Atom

True Tales of the Atom documents the creative process in the making of the film of the same name. It describes the intent and result of each step in the filmmaking process, including esthetic, budget and technical decisions. How the inclusion of animation increased the complexity and technical demands on the postproduction. It shows the problems encountered and overcome working on a production alone. Finally, it details the successful completion primarily due to extensive preplanning. The film on which the paper is based is a non-traditional look at several little-known aspects of civilian nuclear power, with a look at the media that could have helped to shape current attitudes in the United States about the technology.
Date: August 2011
Creator: Westergaard, Jerry
System: The UNT Digital Library
Kalman Filtering Approach to Optimize OFDM Data Rate (open access)

Kalman Filtering Approach to Optimize OFDM Data Rate

This study is based on applying a non-linear mapping method, here the unscented Kalman filter; to estimate and optimize data rate resulting from the arrival rate having a Poisson distribution in an orthogonal frequency division multiplexing (OFDM) transmission system. OFDM is an emerging multi-carrier modulation scheme. With the growing need for quality of service in wireless communications, it is highly necessary to optimize resources in such a way that the overall performance of the system models should rise while keeping in mind the objective to achieve high data rate and efficient spectral methods in the near future. In this study, the results from the OFDM-TDMA transmission system have been used to apply cross-layer optimization between layers so as to treat different resources between layers simultaneously. The main controller manages the transmission of data between layers using the multicarrier modulation techniques. The unscented Kalman filter is used here to perform nonlinear mapping by estimating and optimizing the data rate, which result from the arrival rate having a Poisson distribution.
Date: August 2011
Creator: Wunnava, Sashi Prabha
System: The UNT Digital Library
Bioconcentration of Triclosan, Methyl-Triclosan, and Triclocarban in the Plants and Sediments of a Constructed Wetland (open access)

Bioconcentration of Triclosan, Methyl-Triclosan, and Triclocarban in the Plants and Sediments of a Constructed Wetland

Triclosan and triclocarban are antimicrobial compounds added to a variety of consumer products that are commonly detected in waste water effluent. The focus of this study was to determine whether the bioconcentration of these compounds in wetland plants and sediments exhibited species specific and site specific differences by collecting field samples from a constructed wetland in Denton, Texas. The study showed that species-specific differences in bioconcentration exist for triclosan and triclocarban. Site-specific differences in bioconcentration were observed for triclosan and triclocarban in roots tissues and sediments. These results suggest that species selection is important for optimizing the removal of triclosan and triclocarban in constructed wetlands and raises concerns about the long term exposure of wetland ecosystems to these compounds.
Date: August 2011
Creator: Zarate, Frederick M., Jr.
System: The UNT Digital Library
Boron Nitride by Atomic Layer Deposition: A Template for Graphene Growth (open access)

Boron Nitride by Atomic Layer Deposition: A Template for Graphene Growth

The growth of single and multilayer BN films on several substrates was investigated. A typical atomic layer deposition (ALD) process was demonstrated on Si(111) substrate with a growth rate of 1.1 Å/cycle which showed good agreement with the literature value and a near stoichiometric B/N ratio. Boron nitride films were also deposited by ALD on Cu poly crystal and Cu(111) single crystal substrates for the first time, and a growth rate of ~1ML/ALD cycle was obtained with a B/N ratio of ~2. The realization of a h-BN/Cu heterojunction was the first step towards a graphene/h-BN/Cu structure which has potential application in gateable interconnects.
Date: August 2011
Creator: Zhou, Mi
System: The UNT Digital Library
Rehlet Iraqi (An Iraqi Journey) (open access)

Rehlet Iraqi (An Iraqi Journey)

Rehlet Iraqi was created to depict an Iraqi refugee family’s struggle after fleeing war-torn Iraq. Their struggle is highlighted with hope and high expectations for a better life within the United States. This film emphasizes the toll that emigration has on the life of a family before and after their arrival to Grand Rapids, Michigan.
Date: August 2011
Creator: Wahbeh, Fadi
System: The UNT Digital Library
The “Dallas Way” in the Gayborhood: The Creation of a Lesbian, Gay, Bisexual, and Transgender Community in Dallas, Texas, 1965-1986 (open access)

The “Dallas Way” in the Gayborhood: The Creation of a Lesbian, Gay, Bisexual, and Transgender Community in Dallas, Texas, 1965-1986

This thesis describes the creation of the gay and lesbian community in Dallas, the fourth largest metropolitan area in the United States. Employing more than seventy-five sources, this work chronicles the important contributions the gay men and lesbians of Dallas have made in the struggle for gay civil rights. This thesis adds to the studies of gay and lesbian history by focusing on a region of the United States that has been underrepresented, the South. In addition, this work addresses the conflicts that arise within the community between men and women.
Date: August 2011
Creator: Wisely, Karen S.
System: The UNT Digital Library
Assessment and Treatment of Multiple Topographies of Self-injury Maintained by Separate Reinforcement Contingencies (open access)

Assessment and Treatment of Multiple Topographies of Self-injury Maintained by Separate Reinforcement Contingencies

Functional analysis procedures were used to assess and treat multiple topographies of self-injurious behavior exhibited by an individual. An experimental functional analysis indicated that one topography, hand biting, appeared to be maintained by social positive reinforcement in the form of delivery of tangible items. The analysis also provided evidence that a second form of self-injury, skin picking, was automatically reinforced. To treat positively reinforced hand biting, access to a preferred tangible was arranged contingent on the omission of biting for a prespecified time interval. Hand biting was nearly eliminated, and low rates were maintained as the schedule of reinforcement was thinned to 10 min. Competing stimulus assessments identified that magazines effectively suppressed all occurrences of skin picking; therefore, noncontingent access to magazines was implemented. Using a combination of multielement and multiple baseline designs, we were able to demonstrate that the two topographies of self-injury were maintained by independent reinforcement contingencies and that interventions corresponding to each topography and function effectively treated both behaviors.
Date: August 2011
Creator: Pace, Amy
System: The UNT Digital Library
Molecular Structure Analyses of Asymmetric Hydrocarbon Liquid Compounds in the Gas Phase Using Chirped-pulse Fourier Transform Microwave Spectroscopy: Acyl Chlorides and Perfluorinated Acyl Chlorides (open access)

Molecular Structure Analyses of Asymmetric Hydrocarbon Liquid Compounds in the Gas Phase Using Chirped-pulse Fourier Transform Microwave Spectroscopy: Acyl Chlorides and Perfluorinated Acyl Chlorides

Examinations of the effects of (a.) alkyl carbon chain length and (b.) perfluorination of acyl chlorides; propionyl chloride, butyryl chloride, valeroyl chloride, and perfluorinated acyl chlorides; perfluoropropionyl chloride and perfluorobutyryl chloride, are reported and compared using CP-FTMW spectroscopy. All of these molecules are already published in various journals except for valeroyl chloride. The chapters are organized by molecule alkyl chain length and include some background theory. Conformational stability, internal rotation, helicity, and ionic character of the C-Cl bond via the nuclear electric quadrupole coupling constant (χzz) are analyzed. Results show syn, syn-anti/syn-gauche, and syn-anti-anti/syn-gauche-anti stable conformations. Internal rotation was only seen in propionyl chloride. Helicity was not observed. (χzz) was observed to be inert to alkyl chain length, ~ 60 MHz and ~ 65 MHz for the nonfluorinated and fluorinated acyl chlorides. Partial fluorination and varying functional groups are recommended.
Date: August 2011
Creator: Powoski, Robert A.
System: The UNT Digital Library
High-Precision Micropipette Thermal Sensor for Measurement of Thermal Conductivity of Carbon Nanotubes Thin Film (open access)

High-Precision Micropipette Thermal Sensor for Measurement of Thermal Conductivity of Carbon Nanotubes Thin Film

The thesis describes novel glass micropipette thermal sensor fabricated in cost-effective manner and thermal conductivity measurement of carbon nanotubes (CNT) thin film using the developed sensor. Various micrometer-sized sensors, which range from 2 µm to 30 µm, were produced and tested. The capability of the sensor in measuring thermal fluctuation at micro level with an estimated resolution of ±0.002oC is demonstrated. The sensitivity of sensors was recorded from 3.34 to 8.86 µV/oC, which is independent of tip size and dependent on the coating of Nickel. The detailed experimental setup for thermal conductivity measurement of CNT film is discussed and 73.418 W/moC was determined as the thermal conductivity of the CNT film at room temperature.
Date: August 2011
Creator: Shrestha, Ramesh
System: The UNT Digital Library
Psychopathy and Antisocial Personality Disorder: Gender Differences in Empathy and Alexithymia (open access)

Psychopathy and Antisocial Personality Disorder: Gender Differences in Empathy and Alexithymia

Traditional conceptualizations of psychopathy highlight the importance of affective features of the syndrome in perpetuating social deviance. However, little research has directly investigated the callousness that psychopathic offenders display toward society and their victims. The current study investigated the roles of empathy and alexithymia in psychopathy among male and female incarcerated offenders, particularly in distinguishing psychopathy from antisocial personality disorder. Gender differences were also investigated. Regarding empathy, as predicted, group differences were largest between psychopathic and non-psychopathic offenders; no reliable differences emerged between psychopathic and APD-only offenders. In contrast, alexithymia robustly distinguished between offenders with prominent psychopathic traits, those with only APD, and those with neither condition. Psychopathic females unexpectedly exhibited slightly higher levels of alexithymia than their male counterparts, while empathic deficits were relatively consistent across genders. These findings are discussed in terms of improving assessment methods for the accurate identification and treatment of offenders with prominent psychopathic features.
Date: August 2011
Creator: Rogstad, Jill E.
System: The UNT Digital Library
The Home Instruction for Parents of Preschool Youngsters (HIPPY) Program’s Effect on Academic Achievement of TAKS Tests (open access)

The Home Instruction for Parents of Preschool Youngsters (HIPPY) Program’s Effect on Academic Achievement of TAKS Tests

This study investigated the effectiveness of the Home Instruction for Parents of Preschool Youngsters (HIPPY) program on school readiness. The HIPPY program uses home-based instruction to aid parents in teaching their children school readiness skills. The curriculum in this program includes literacy, math, and social skills. Texas Assessment of Knowledge and Skills assesses the academic achievement of students in different grade levels and in various subject areas. The chi square test revealed that the children in the HIPPY program were more likely to have higher passing rates on the first administration of TAKS Reading, Math and Science sections compared to non-participants. The implementation of early intervention and parental involvement programs such as HIPPY helps to facilitate students‟ success.
Date: August 2011
Creator: Moore, Olayinka Kofoworola
System: The UNT Digital Library
“Campaigns Replete with Instruction”: Garnet Wolseley’s Civil War Observations and Their Effect on British Senior Staff College Training Prior to the Great War (open access)

“Campaigns Replete with Instruction”: Garnet Wolseley’s Civil War Observations and Their Effect on British Senior Staff College Training Prior to the Great War

This thesis addresses the importance of the American Civil War to nineteenth-century European military education, and its influence on British staff officer training prior to World War I. It focuses on Garnet Wolseley, a Civil War observer who eventually became Commander in Chief of the Forces of the British Army. In that position, he continued to write about the war he had observed a quarter-century earlier, and was instrumental in according the Civil War a key role in officer training. Indeed, he placed Stonewall Jackson historian G.F.R. Henderson in a key military professorship. The thesis examines Wolseley’s career and writings, as well as the extent to which the Civil War was studied at the Senior Staff College, in Camberly, after Wolseley’s influence had waned. Analysis of the curriculum from the College archives demonstrates that study of the Civil War diminished rapidly in the ten years prior to World War I.
Date: August 2011
Creator: Cohen, Bruce D.
System: The UNT Digital Library
Booty Calls, Rage, and Racialized/sexualized Subjects: Tmz's Coverage of Rihanna and Chris Brown (open access)

Booty Calls, Rage, and Racialized/sexualized Subjects: Tmz's Coverage of Rihanna and Chris Brown

Internet-based celebrity gossip blog site, TMZ, is a growing cultural force. Employing critical rhetorical analytics, the author examines the TMZ coverage of Chris Brown's assault on his then-girlfriend, Rihanna. This project explicates TMZ's enthymematic invocation of dominant cultural ideologies surrounding race, sex, and domestic violence. Chapter 1 demonstrates the theoretical importance of both celebrities and gossip blogs, signaling the ideological importance of each. Chapter 2 critiques TMZ's reliance on historic myths regarding sex and race in their reporting on this case. Chapter 3 analyzes TMZ's humorous and affective strategies that bolster broader investments in colorblind ideologies. Chapter 4 concludes by examining the interplay of formal rhetorical elements that inform the project's findings. This research reveals that TMZ utilizes affective, enthymematic strategies that camouflage broader racist and sexist ideological impulses that perpetuate domestic violence myths.
Date: August 2011
Creator: Sabino, Lauren
System: The UNT Digital Library
“Civilizations without Boats”: Stories (open access)

“Civilizations without Boats”: Stories

This collection consists of a critical preface and nine short stories. Extrapolating from the work and legacy of Michel Foucault, the preface theorizes a genre of “heterotopian fiction” as constitutive of a fundamentally ethical approach to narrative creativity, distinguishing its functional and methodological characteristics from works that privilege aesthetic, thematic, or technical artistry. The stories explore spaces of madness, alterity, incomprehensibility, and liminal experience. Collection includes the stories “Mexico,” “Civilizations without Boats,” The Widow’s Mother,” “Guys Like Us,” “Everything You’d Hoped It Would Be,” “A Concerned Friend,” “Crisis Hotline,” “Coast to Coast,” and “The Ghosts of Rich Men.”
Date: August 2011
Creator: Hubbs, Travis
System: The UNT Digital Library