Digital Commons Network^™

Ecological Art: Ruth Wallen And Cultural Activism, Susan Birchler

USF Tampa Graduate Theses and Dissertations

Twentieth century modernity has provoked multiple problems ranging from environmental degradation to human rights violations. Globally, diverse communities of people have organized to promote, not just reactive reforms, but a fundamental alteration of the foundational worldview underlying these issues. Radical activists committed their work to promoting an alternative ethos based on egalitarian, democratic, and ecologically-wise concepts. An array of methodologies emerged from these endeavors. More radical political groups focused on cultural tools to engage people in the construction of an alternative worldview. Radical activists utilized two forms of cultural politics: prefigurative politics, the physical presentation of an envisioned future and …

The Bioinorganic Chemistry Of Copper-Containing Systems: From Type-3 Systems Pertinent To Alzheimer’S Disease To Mononuclear Hydrolysis Involved In Biological Development, Giordano Faustini Zimmerer Da Silva

USF Tampa Graduate Theses and Dissertations

Although transition metals are essential for life, misregulation of redox-active metal uptake, delivery, storage, and excretion has been linked with a series of neurodegenerative disorders. Alzheimer's disease (AD) is considered an epidemic and is the most widespread of all forms of dementia. Copper ions found in large concentrations localized in amyloid-ß plaques in the brain of AD patients have been linked with the generation of reactive oxygen species which are suspected to be the culprits leading to neuronal cell death. Herein a series of mechanistic and spectroscopic studies elucidate the chemistry about the metal-centered oxidation of biomolecules, including catecholamine neurotransmitters …

The Effects Of Goal Message And Goal Orientation On Learning In A Web-Based Tutorial, John M. Bunch

USF Tampa Graduate Theses and Dissertations

The current study investigates instructional design factors that can be manipulated to enhance learner motivation. A goal-based approach to enhancing motivation is discussed, along with current theory concerning the goal orientation an individual learner brings to an instructional situation. The efficacy of Prospect Theory as a cognitive mechanism underlying the valuation of effort toward a goal is discussed, and an experiment is presented in which goal messaging is manipulated based on the predictions of Prospect Theory as well as Goal Setting Theory. A Web-based tutorial consisting of ten sections of text, each with a recall test, was used. An ability …

Trauma-Based Priming And Attentional Bias To Smoking Cues: A Stroop Task Study, Pattie B. Sherman

USF Tampa Graduate Theses and Dissertations

Past research has highlighted the importance of better understanding the high rate of smoking among individuals exposed to trauma. However, few studies have investigated the cognitive mechanisms that may contribute to the smoking-trauma relationship. The primary goal of the present study was to examine the associative relationship between smoking and trauma at a cognitive level, by examining the extent to which trauma-relevant pictures primed attentional biases to smoking-related words on a modified Stroop task. Eighty trauma-exposed smokers (classified as having low, medium, or high levels of post trauma symptomatology) ink-named smoking-related and neutral words after being primed with trauma-related, positive, …

Rock, Paper, Scissors, Josef Benson

USF Tampa Graduate Theses and Dissertations

Rock, Paper, Scissors has developed into a story about Wren, a young man fresh out of the Navy, trying to make a name for himself in the world. Wren finds himself in Tampa, Florida because his oldest pal, Allen, has moved there, even though his younger sister has been diagnosed with leukemia back home. The problem is that Allen somewhere along the way has lost his mind. Wren finds out that Allen has recently been fired from a job as a server in a restaurant called the Bolognese, the same restaurant that Allen promised Wren a job. Wren decides to …

Two Essays On Venture Capital: What Drives The Underpricing Of Venture Capitalbacked Ipos And Do Venture Capitalists Provide Anything More Than Money?, Donald Flagg

USF Tampa Graduate Theses and Dissertations

This dissertation includes two chapters that investigate the role venture capitalists (VCs) play in the underpricing and in the long-run performance of IPOs. The first chapter focuses on the underpricing of IPOs and attempts to determine the role that VCs play in this underpricing process. The evidence is consistent with a view that VCs agree to underpricing to ascertain benefits from both "grandstanding" and "spinning." The second chapter examines the long-run performance of IPOs and tries to determine the role that VCs play in the development of IPOs. Here, the evidence suggests that VC-backed IPOs appear to have better access …

Three Theories Of Individualism, Philip Schuyler Bishop

USF Tampa Graduate Theses and Dissertations

This thesis traces versions of the theory of individualism by three major theorists, John Locke, John Stuart Mill and John Dewey, as they criticize existing social, cultural, economic, legal and military conditions of their times. I argue that each theorist modifies the theory of individualism to best suit their understanding of human nature, adapting it where they can and outright removing aspects where they cannot. Based upon each thinker's conception of human nature, their corresponding theory of individualism does justice to that nature. With their view of individualism, each thinker criticizes the activities of their day for its lack of …

The Pragmatist And The Aesthete: Late Nineteenth-Century Religion And Theology In Harold Frederic’S The Damnation Of Theron Ware And Ellen Glasgow’S Phases Of An Inferior Planet, Matthew Antonio

USF Tampa Graduate Theses and Dissertations

A comparison between Ware, Forbes, and Soulsby from The Damnation of Theron Ware provides a glimpse into one aspect of the theological upheaval of the time. A comparison between Ware, Forbes, and Algarcife, from Phases of an Inferior Planet, however, hearkens forward to the alienation and questioning of identity so much a part of the Twentieth Century. By viewing Ware as a foil for Forbes and Soulsby in tandem with Algarcife, a more complete picture of the transition between nineteenth and twentieth-century religion and theology may be found.

Understanding the encounter between the traditional and the liberal clergy requires …

The Right To Health: Conflicting Paradigms Of Health As Commodity Vs. Health As Human Right, Robert Colin Nelson

USF Tampa Graduate Theses and Dissertations

Despite the fact that the United States spends more per capita than any other nation on healthcare for its citizens, the quality of American health outcomes lags well behind every other developed country in the world. This paper proposes that it is no coincidence that the United States is also the only developed nation that does not guarantee the right comprehensive coverage of medical services for its citizens. Instead, we rely on a fee-for-service system which functionally denies quality health care to those without the means to pay for it. In this paper I document the experiences of various clients …

Climatic And Structural Controls On The Geomorphology Of Wadi Sana, Highland Southern Yemen, Joshua Michael Anderson

USF Tampa Graduate Theses and Dissertations

Middle Holocene climate change forced significant environmental response and influenced human activities throughout southern Arabia. Climate models and proxy data indicate that climate along the southern Arabian peninsula changed from a moist phase, spanning the early to middle Holocene, to an arid phase, which persisted for the last ca. 5,000 years. A weakening and southward shift of the Southwest Indian Monsoon System, forced by northern hemisphere insolation variations in the precession band and/or glacial boundary conditions, is suggested as the mechanism for the abrupt shift to more arid conditions. Geoarchaeological evidence suggests that agriculture was more widespread and evolved alongside …

Learning On Complex Simulations, Robert E. Banfield

USF Tampa Graduate Theses and Dissertations

This dissertation explores Machine Learning in the context of computationally intensive simulations. Complex simulations such as those performed at Sandia National Laboratories for the Advanced Strategic Computing program may contain multiple terabytes of data. The amount of data is so large that it is computationally infeasible to transfer between nodes on a supercomputer. In order to create the simulation, data is distributed spatially. For example, if this dissertation was to be broken apart spatially, the binding might be one partition, the first fifty pages another partition, the top three inches of every remaining page another partition, and the remainder confined …

Structure-Function Studies Of Conserved Sequence Motifs Of Cytochrome B5 Reductase:, Louis J. Crowley

USF Tampa Graduate Theses and Dissertations

NADH:Cytochrome b₅ Reductase (cb₅r) catalyzes the two electron reduction of the iron center of the heme cofactor found within cytochrome b₅ (cb₅) utilizing reducing equivalents of the nicotinamide adenine dinucleotide (NADH) coenzyme. Cb₅r is characterized by two domains necessary for proper enzyme function: a flavin-binding domain and a pyridine nucleotide-binding domain. Within these domains are highly conserved "motifs" necessary for the proper binding and orientation of both the NADH coenzyme and the FAD cofactor.

To address the importance of these conserved motifs site-directed mutagenesis was utilized to generate a …

The Association Between Risk Taking And Personality, Gabriella Anic

USF Tampa Graduate Theses and Dissertations

The aim of this study was to examine the association between personality and risk taking in a sample of 461 older adults from the Charlotte County Healthy Aging Study (CCHAS). The personality factors of openness to experience, extraversion, neuroticism, agreeableness and conscientiousness were measured with the NEO Five Factor Inventory. Risk-taking was measured with an 8-item questionnaire and a single-item question that assessed subjects' participation in sensation seeking behaviors. Spearman correlation coefficients, hierarchical linear regression and hierarchical logistic regression were used to assess the association. As consistent with past research, high scores on openness to experience (beta = 0.16, P<.0001) and low scores on neuroticism (β = -0.14, P<.01) and agreeableness (β = -0.16, P<.01) were associated with the total score of the 8-item risk taking questionnaire. The single-item risk question was also associated with openness [OR = 1.09; 95% CI: 1.05-1.13], neuroticism [OR = 0.94; 95% CI: 0.90-0.97] and agreeableness [OR = 0.95; 95% CI: 0.92-0.99]. After stratifying by gender, only openness was still significantly associated with risk-taking. Interaction terms including gender and personality factors were added to the models to test if gender was an effect modifier. Although personality differences existed between men and women, none of the interaction terms were statistically significant.

Danger Afoot: Sidewalks, Environmental Justice, And Pedestrian Safety In Pinellas County, Florida, Craig W. Harmak

USF Tampa Graduate Theses and Dissertations

Though often taken for granted, few everyday activities involve so much genuine danger as the hazards associated with motor vehicles. Urban areas are built, modified, and/or deconstructed with motoring in mind. Also true is that few are at as much risk, as are those pedestrians who dare to cross paths with motor vehicles. Unfortunately, all too often, pedestrians are casualties of encounters with the ubiquitous automobile. The Tampa-St. Petersburg-Clearwater, Florida metropolitan statistical area (MSA) has recently been deemed, by one study, to be the nation's second most dangerous MSA for pedestrians. Using information on pedestrian/motor vehicle accident sites, sidewalk location …

Fabrication And Analysis Of Poly(3-Hexylthiophene) Interfaces Using Electrospray Deposition And Photoemission Spectroscopy, John Lyon

USF Tampa Graduate Theses and Dissertations

P3HT (Poly(3-hexylthiophene)) is an organic polymer that shows promise as an active material in semiconducting electronics. It is important to study the electronic properties of this material in order to determine its efficacy in such devices. However, many current studies of thiophene only examine the oligomer, since it is a simpler material to investigate.

In this study, several P3HT interfaces were analyzed to determine their electronic properties. The P3HT was deposited on Au, highly-ordered pyrolitic graphite (HOPG), and indium tin oxide (ITO) substrates via electrospray deposition. The depositions were performed in several steps, with x-ray photoemission spectroscopy (XPS) and ultraviolet …

On Comparison Of Indentation Models, John Louis Daly Jr.

USF Tampa Graduate Theses and Dissertations

Thin films that are functionally gradient improve the mechanical properties

of film-substrate layered materials. Mechanical properties of such materials are

found by using indentation tests. In this study, finite element models are

developed to simulate the indentation test. The models are based on an

axisymmetric half space of a specimen subjected to spherical indentation. The

film layer through the thickness is modeled to have either homogeneous material

properties or nonhomogeneous material properties that vary linearly.

Maximum indenter displacement, and maximum normal and shear

stresses at the interface are compared between the homogeneous model and

the nonhomogeneous model for pragmatic contact …

Hurricane Forecasting, Warning And Response Systems: A Lake Wales Public Perception Study, April E. Raulerson

USF Tampa Graduate Theses and Dissertations

This research investigates the public perception of hurricane forecasting and warning systems with a view to improving response activities. The hazard literature shows that the effectiveness of such systems is contingent upon on the smooth operation of all components of the system and that warning recipients fully understand the implications of the warning message by taking appropriate action. It is argued that public perception of warning systems will vary depending on various socio-demographic factors, such as age, gender, level of education, socioeconomic status and area, factors that will ultimately influence overall effectiveness. To test this, a questionnaire survey was undertaken …

The Rise Of Clostridium Difficile In Florida, Owen Bendixsen

USF Tampa Graduate Theses and Dissertations

Clostridium difficile, a bacterium that causes diarrhea in hospitalized patients, is on the rise in the United States as well as in other countries. This study was done to determine the extent of the problem in Florida's acute care hospitals. The Agency for Healthcare Administration (AHCA) provided data for patients discharged from Florida's acute care hospitals for the years 1998 through 2004.

This study will focus on changes in the prevalence of Clostridium difficile associated disease (CDAD) over time. The mortality and morbidity of patients that have CDAD will also be examined to show if the disease is increasing …

Naming And Inhibition In Aphasia, Lori R. Bartels-Tobin

USF Tampa Graduate Theses and Dissertations

Lexical retrieval models illustrate both activation and inhibition between concepts, words, and phonemes. When semantic activation spreads from one concept to its related concepts, inhibition is recruited so that competition between related concepts can be overcome and a target production achieved. Persons with aphasia often exhibit difficulty with producing the desired response, which could be the result of inadequate inhibitory processes to overcome response competition.

Inhibitory processing is typically measured using a negative priming task. Twenty participants with aphasia, twenty-five young participants, and twenty age-matched aphasia group controls were recruited for this study. Participants with aphasia completed a picture-naming task, …

The Influence Of Dialect On The Perception Of Final Consonant Voicing, Stacy Nicole Kile

USF Tampa Graduate Theses and Dissertations

Children at risk for reading problems also have difficulty perceiving critical

differences in speech sounds (Breier et al., 2004; Edwards, Fox, & Rogers, 2003; de-

Gelder & Vroomen, 1998). These children rely more heavily on context than the acoustic

qualities of sound to facilitate word reading. Dialect use, such as African American

English (AAE) may influence literacy development in similar ways. Dialect use has been

shown to affect speech sound processing and can even result in spelling errors (Kohler, et

al., in press). The purpose of this study is to determine if children who speak AAE

process cues indicative of …

Making Sense Of Complex System Failure: The Case Of 9/11, Sandra M. Cooper

USF Tampa Graduate Theses and Dissertations

The National Commission on Terrorist Attacks attributed the September 11 attacks on the U.S. homeland to the terrorists' exploitation of "deep institutional failings." These findings are similar to the conclusions of the Presidential Commission investigating the 1986 Challenger accident and the Columbia Accident Investigative Board (2003). Generally Commissions aim to provide the fullest possible account of events contributing to the catastrophe under investigation and to identify lessons learned, but avoid specifying responsibility and accountability. For this reason, various commission reports have been criticized for being abstract and shallow. These criticisms make a valid point. How commissions make sense of failures …

American Odyssey, Bernadette Kafwimbi Cogswell

USF Tampa Graduate Theses and Dissertations

This thesis consists of the two opening chapters of American Odyssey, a nouveau plantation novel that has its roots in two American fiction traditions---the nineteenth-century plantation novel and the twentieth-century neo-slave narrative. It is 1855 and Charles DeCoeur's only motivation to remain Riverwood's owner and master is that his widowed mother and sickly sister rely on the profits of the estate. Charles chafes under the responsibility and physicality of plantation life, unable to reconcile himself to the role of master of a cotton estate in the forgotten heart of East Florida. Then a female Negro, Hellcat, wanders onto the …

The Role Of Computer-Mediated Communication In Non-Native Speakers’ Acquisition Of Academic Literacy, Rui Cheng

USF Tampa Graduate Theses and Dissertations

Research shows that academic literacy is discipline specific. Students have to learning the ways of communication in order to gain access to the discourse community of the selected discipline through understanding and performing required genres and learning necessary disciplinary knowledge. Scaffolding is important in the process to help students internalize the disciplinary knowledge and improve students' performance on academic papers. Computer-mediated communication (CMC) provides good chances of scaffolding and mediation especially for non-native graduate students who may have lost many opportunities of class participation due to their limited language proficiency or other cultural issues.

In this dissertation, the researcher investigated …

How Individual Values And Trait Boredom Interface With Job Characteristics And Job Boredom In Their Effects On Counterproductive Work Behavior, Kari Bruursema

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to examine relationships among individual values, trait boredom, job boredom, job characteristics, and CWB. Job boredom and trait boredom were expected to be positively related to CWB. Individual values and job characteristics were expected to moderate the relationship between boredom and different types of CWB.

Completed online questionnaires were received from 211 participants, and 112 co-worker matches also submitted online surveys. The Schwartz Value Survey, Job Descriptive Index, Job Boredom Scale, and Boredom Proneness Scale were used to assess independent variables. The Counterproductive Work Behavior Checklist measured the dependent variable. Results were analyzed using …

The Conundrum Of Women’S Studies As Institutional: New Niches, Undergraduate Concerns, And The Move Towards Contemporary Feminist Theory And Action, Rebecca K. Willman

USF Tampa Graduate Theses and Dissertations

In this thesis I address current debates on the perceived lack of contemporary feminist activism and concerns of Women's Studies as existing within university institutions. I propose that Women's Studies programs and departments serve as locations useful for feminists interested in participating in feminist activism in and beyond the university. By viewing Women's Studies programs and departments as contemporary abeyance structures in feminist movements, I revisit the ways in which debates on differences between second and third wave feminisms have contributed to social change. In doing so, I highlight how the feminist movement maintains itself between upsurges in mass-based visible …

Internalized Racism As A Moderator For Stereotype Threat: Effects On Self-Handicapping, Performance, And Cardiovascular Responses In Black Individuals, Nicole Ellis Jagusztyn

USF Tampa Graduate Theses and Dissertations

The purpose of the present study was to explore the relationship between internalized racism, stereotype threat, self-handicapping, test performance, and cardiovascular responses in Black individuals. Stereotype threat, or apprehension about confirming a negative stereotype, has been shown to lead to self-handicapping, poor academic performance, as well as increased cardiovascular reactivity. Internalized racism, or the acceptance of negative stereotypes about one's group, is a factor that may moderate these relationships. One-hundred nine (84% female, 16% male) Black undergraduates participated in a laboratory study. Half of the participants were put in a stereotype-threatened condition and the other half were in a neutral …

The Relationship Between Sleep-Wake Disturbance And Pain In Cancer Patients Admitted To Hospice Home Care, Marjorie Acierno

USF Tampa Graduate Theses and Dissertations

There is evidence of a relationship between sleep-wake disturbances and pain variables in cancer patients. It is hypothesized that pain affects all aspects of sleep patterns. Pain has been known to affect sleep disturbances; however there are different facets of sleep-disturbances and pain that can be evaluated. These variables include pain distress, pain intensity, pain at its worst, relief from pain, sleep distress, how well the patient sleeps, how tired one feels, and drowsiness distress. Several studies identify relationships between sleep-disturbances and pain. This study using secondary analysis was designed to correlate variables related to sleep-wake disturbance and pain in …

Queer Identity? Discussing Identity And Appearance In An On-Line “Genderqueer” Community, Sharla N. Alegria

USF Tampa Graduate Theses and Dissertations

The relatively new field of Queer Theory creates ways of thinking about people living without binary gender, but does not provide for a research model with which to give context to the material struggles of such people. Through the use of Internet discussion groups, the current research project attempts to examine the challenges that people who identify with the concept "genderqueer" describe facing as they fashion selves in social interactions; a process which inevitably requires consumer goods that typically only allow for heteronormative binary gender. Findings suggest that there are similarities in how respondents came to identify with "genderqueer," but …

Evaluation Of Unknown Foundations, Ronald W. Florkowski

USF Tampa Graduate Theses and Dissertations

In recent years, bridge foundations have been in the spotlight throughout the nation. Bridges built over running water are susceptible to erosion or scour around their foundations. The reduction in load capacity to piers and abutments pose a safety risk to highway motorists. It has become necessary for engineers to examine and monitor these "scour critical" bridges. The difficulty arises with subsurface foundations of which very little is known about their construction. Hence, the methods applied to analyzing "Unknown Foundations" have become a necessary topic of research.

This thesis explores a method to determine foundation lengths. Similar to Sonic Echo …

Filecules: A New Granularity For Resource Management In Grids, Shyamala Doraimani

USF Tampa Graduate Theses and Dissertations

Grids provide an infrastructure for seamless, secure access to a globally distributed set of shared computing resources. Grid computing has reached the stage where deployments are run in production mode. In the most active Grid community, the scientific community, jobs are data and compute intensive. Scientific Grid deployments offer the opportunity for revisiting and perhaps updating traditional beliefs related to workload models and hence reevaluate traditional resource management techniques.

In this thesis, we study usage patterns from a large-scale scientificGrid collaboration in high-energy physics. We focus mainly on data usage, since data is the major resource for this class of …