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Growth Of 3c-Sic Via A Hot-Wall Cvd Reactor, Suzie Harvey
Growth Of 3c-Sic Via A Hot-Wall Cvd Reactor, Suzie Harvey
USF Tampa Graduate Theses and Dissertations
The heteroepitaxial growth of cubic silicon carbide (3C-SiC) on silicon (Si) substrates at high growth rates, via a horizontal hot-wall chemical vapor deposition (CVD) reactor, has been achieved. The final growth process was developed in three stages; an initial "baseline" development stage, an optimization stage, and a large area growth stage. In all cases the growth was conducted using a two step, carbonization plus growth, process. During carbonization, the surface of the Si is converted to 3C-SiC, which helps to minimize the stress in the growing crystal. Propane (C3H8) and silane (SiH4), diluted in hydrogen (H2), were used as the …
Freedom Fighters, Freedom Haters, Martyrs, And Evildoers: The Social Construction Of Suicide Terrorism, Cã©Cile Valã©Rie Van De Voorde
Freedom Fighters, Freedom Haters, Martyrs, And Evildoers: The Social Construction Of Suicide Terrorism, Cã©Cile Valã©Rie Van De Voorde
USF Tampa Graduate Theses and Dissertations
Suicide terrorism is characterized by the willingness of physically and psychologically war-trained individuals to die while destroying or attempting to annihilate enemy targets in furtherance of certain political or social objectives. Rooted in the historical, social, and psychological dimensions of international terrorism, suicide terrorism is neither a unique nor a new phenomenon. Its recent resurgence and the extensive media coverage it has received account for the misleading uniqueness of this violent, complex, and adaptive form of terrorism. This qualitative study examines the definitional and rhetorical processes by which suicide terrorism is socially constructed. Using a social constructionist theoretical framework coupled …
An Exploration Of Middle-Aged And Older Women's Experiences Of Bat Mitzvah Within The Framework Of Erikson's Theory Of Human Development, Keren S. Vergon
An Exploration Of Middle-Aged And Older Women's Experiences Of Bat Mitzvah Within The Framework Of Erikson's Theory Of Human Development, Keren S. Vergon
USF Tampa Graduate Theses and Dissertations
A growing number of Jewish women are participating in adult bat mitzvah ceremonies in many synagogues across the United States. Little is known about the reasons why women choose to participate in a bat mitzvah ritual as an adult. It is also unclear if women of different ages have different reasons for participating in bat mitzvah.Older women were often not given the opportunity to participate in the bat mitzvah ritual as a young adult, and it is unknown why older women choose to accept the challenge of bat mitzvah. It may be suspected that Jewish women are interested in adult …
Novel Sol-Gel Titania-Based Hybrid Organic-Inorganic Coatings For On-Line Capillary Microextraction Coupled To High-Performance Liquid Chromatography, Tae-Young Kim
USF Tampa Graduate Theses and Dissertations
Novel sol-gel titania-poly(dimethylsiloxane) (TiO2-PDMS) and titania-silica-N-(triethoxysilylpropyl)-O-polyethylene oxide urethane (TiO2-SiO2-TESP-PEO) coatings were developed for capillary microextraction (CME) to perform on-line preconcentration and HPLC analysis of trace impurities in aqueous samples. Due to chemical inertness of titania, effective covalent binding of a suitable organic ligand to its surface is difficult via conventional surface modification methods. In this research, sol-gel chemistry was employed to chemically bind hydroxy-terminated poly(dimethylsiloxane) (PDMS) and N-(triethoxysilylpropyl)-O-polyethylene oxide urethane (TESP-PEO) to sol-gel titania and sol-gel titania-silica network, respectively. A method is presented describing in situ preparation of the titania-based sol-gel PDMS and TESP-PEO coatings and their immobilization on the …
Workers, Unions, And The Globalization Of Production: Structural And Institutional Challenges For Organized Labor In The United States, Matthew Kohen
Workers, Unions, And The Globalization Of Production: Structural And Institutional Challenges For Organized Labor In The United States, Matthew Kohen
USF Tampa Graduate Theses and Dissertations
In this thesis, I argue that the globalization of production has weakened the power and efficacy of labor unions in the United States. I describe the globalization of production as a set of transformations in both the institutional structure of the economy and in the organization of production, and discuss how these transformations have impacted workers and unions in the American economy. The theoretical framework I employ is the social structure of accumulation approach, which emphasizes the importance of the institutional structures of capitalist economies and how their interaction with forms of production organization and systems of labor control helps …
Reef Recovery Following The Late Devonian Mass Extinction: Evidence From The Dugway Range, West-Central Utah, Joseph G. Krivanek
Reef Recovery Following The Late Devonian Mass Extinction: Evidence From The Dugway Range, West-Central Utah, Joseph G. Krivanek
USF Tampa Graduate Theses and Dissertations
The biotic crisis of the Late Devonian Period involved three distinct peaks of extinction intensity and preferentially eliminated reef taxa. By the end of the second peak, the Frasnian-Famennian (F-F) boundary, the dominant constructor guild member of the mid-Paleozoic, the stromatoporoids, had ceased reef construction in most parts of the world. An undescribed stromatoporoid bioherm in the Dugway Range, west-central Utah, is one of the few locations where stromatoporoids continued building reefs into the mid-Famennian. The sections are well-constrained biostratigraphically using both conodonts and stromatoporoids and range from the latest Frasnian to the Early Carboniferous. The reefal faunas are depauperate …
Laboratory Analysis Of Staphylococcus Aureus In Florida From January 1, 2003 To December 31, 2005 With An Emphasis On Methicillin Resistance, Stephanie Kolar
Laboratory Analysis Of Staphylococcus Aureus In Florida From January 1, 2003 To December 31, 2005 With An Emphasis On Methicillin Resistance, Stephanie Kolar
USF Tampa Graduate Theses and Dissertations
The Staphylococci are gram-positive bacteria that cause infections in humans and can produce severe morbidity and mortality. Methicillin resistant S. aureus (MRSA) isolates are resistant to all beta-lactam antibiotics, such as methicillin, and cephalosporins making treatment of these infections more difficult. MRSA has become prevalent throughout the United States, spreading in the health care setting and the community.The purpose of this study is to examine methicillin resistance among S. aureus isolates in an outpatient population in the state of Florida and asses possible associations between methicillin resistance and age group, gender, and geographic area. It is important to define methicillin …
Predictors And Outcomes Of Hospice Use Among Medicare And Medicaid Dual-Eligible Nursing Home Residents In Florida: A Comparison Of Non-Hispanic Blacks And Non-Hispanic Whites, Jung, Kwak
USF Tampa Graduate Theses and Dissertations
This research investigated the racial/ethnic differences in hospice utilization and the effect of hospice in reducing the risk of hospital death at the end of life among non-Hispanic Black and non-Hispanic White dual-eligible (Medicare and Medicaid) older adults residing in a nursing home setting. The final study population included 30,765 non-Hispanic Black and non-Hispanic White nursing home residents who died between state fiscal years 2000-2002 in Florida.The behavioral model of health services use successfully predicted group membership in hospice use. In the full model, seven variables - female gender, non-Hispanic White race/ethnicity, being married, urban area of residence, and cancer …
Cannabinoids Suppress Dendritic Cell-Induced T Helper Cell Polarization, Tangying (Lily) Lu
Cannabinoids Suppress Dendritic Cell-Induced T Helper Cell Polarization, Tangying (Lily) Lu
USF Tampa Graduate Theses and Dissertations
Cannabinoids suppress Th1 immunity in a variety of models including infection with the intracellular pathogen Legionella pneumophila (Lp). To examine the cellular mechanism of this effect, mouse bone marrow-derived dendritic cells (DCs) were studied following infection and drug treatment. DCs produced high levels of IL-12p40 following Lp infection. THC suppressed this cytokine response in a concentration-dependent manner and the endocannabinoids 2-arachidonoyolglycerol and virodhamine less potently suppressed cytokine production. DCs expressed mRNA for cannabinoid receptor 1 (CB1), CB2, and transient receptor potential vanilloid type 1 (TRPV1); furthermore, inhibition of Gi signaling by adding pertussis toxin completely attenuated the suppression induced by …
Gender Differences During Heat Strain At Critical Wbgt, Christina L. Luecke
Gender Differences During Heat Strain At Critical Wbgt, Christina L. Luecke
USF Tampa Graduate Theses and Dissertations
Heat stress is influenced by environmental conditions, workload and clothing. A critical environment is the upper limit of compensable heat stress for a given metabolic rate and clothing ensemble. The physiological strains associated with heat stress are core and skin temperatures, heart rate and physiological strain index (PSI). Because heat dissipation mechanisms may differ between men and women, there may be gender differences in the critical environment and the associated physiological variables. Gender differences were explored between acclimated men (n = 20) and women (n = 9) at the upper limit of compensable heat stress. Participants walked on a motorized …
Virginia Woolf And The Persistent Question Of Class: The Protean Nature Of Class And Self, Mary C. Madden
Virginia Woolf And The Persistent Question Of Class: The Protean Nature Of Class And Self, Mary C. Madden
USF Tampa Graduate Theses and Dissertations
From the beginning of her career, Virginia Woolf moves beyond the perspective of her inherited class position to challenge a damaging class system. She increasingly recognizes the extent of her own complicity in the creation and maintenance of class structures supporting patriarchy, war, and British imperialism. Highlighting ambiguities inherent in the very category of class, she acknowledges the limiting "boxes" of language itself in attempts to rethink class. For Woolf, class is not monolithic but internally differentiated by gender and race. Examining Woolf's early work in relation to class theory shows that throughout her career Woolf interrogates the imbrication of …
Audience Interpretations Of The Representation Of Women In Music Videos By Women Artists, Libby Mckenna
Audience Interpretations Of The Representation Of Women In Music Videos By Women Artists, Libby Mckenna
USF Tampa Graduate Theses and Dissertations
This study examined how young women audiences may make sense of music videos and how they relate music video messages to their own femininity. Studies of the representation of women in music videos mostly have focused on critiquing content, rather than audience interpretations. This study, using focus groups, looked at how young women interpret music videos featuring women artists and showed that young women perceive sexist and/or stereotypical depictions presented in the videos. During six focus groups, three music videos were reviewed by 49 college students, mostly consisting of young women in their early 20s. The researcher found themes emerging …
The Role Of Social Structural And Social Contextual Factors In Shaping Chronic Disease And Chronic Disease Risk Behavior: A Multilevel Study Of Hypertension, General Health Status, And Mental Distress, Caroline Mae Mckay
USF Tampa Graduate Theses and Dissertations
At present there is a reliance on behavioral interventions that have been limited in their effectiveness to reduce the public health burden of chronic disease, partly because the effects of social context on the initiation and maintenance of health behaviors is not incorporated into public health policy and practice. Yet current research indicates that there are macro-level structural and contextual influences on population health that cannot be reduced to individual or compositional effects. This study investigated the associations between social structural factors, community social context, individual characteristics, and self-reported correlates of disease. Distal influences included social structural inequalities such as …
Study Of The Ethical Values Of College Students, Victor Mercader
Study Of The Ethical Values Of College Students, Victor Mercader
USF Tampa Graduate Theses and Dissertations
This study focuses on five main purposes, all of them interrelated and each focused on ethical values, virtues, or character values. The five purposes are: a) Investigate college students' perceptions of ethical values, including their importance, application, usefulness, origin, benefits, need for education, and courses proposed to be included in the curricula; b) Review literature in areas related to ethical values, virtues or character values of college students; c) Develop and pilot an instrument to assess the ethical values of college students; d) Improve and use the developed instrument to describe the status of college students' ethical values; and e) …
Evaluation Of Aashto Design Specifications For Cast-In-Place Continuous Bridge Deck Using Remote Sensing Technique, Ebrahim Mehranipornejad
Evaluation Of Aashto Design Specifications For Cast-In-Place Continuous Bridge Deck Using Remote Sensing Technique, Ebrahim Mehranipornejad
USF Tampa Graduate Theses and Dissertations
This research project concerns the construction, testing, and remote health monitoring of the first smart bridge structure in Florida, the East Bay bridge in Gibsonton, Hillsborough County. The East Bay Bridge is a four span, continuous, deck-type structure with a total length of 120' and width of 55'. The superstructure consists of an 18'' cast-in-place reinforced concrete slab, and is supported on pre-stressed pile bents, each consisting of 5 piles. The smart sensors used for remote health monitoring are the newly emerged Fabry --Perot (FP) Fiber Optic Sensors, and are both surface-mounted and embedded in the concrete deck.Static and Dynamic …
The Relationship Between Emotional Intelligence And Satisfaction With Life After Controlling For Self-Esteem, Depression, And Locus Of Control Among Community College Students, Kevin T. Murphy
USF Tampa Graduate Theses and Dissertations
This study investigated the relationship between Emotional Intelligence (EI) and Satisfaction with Life (SWL) among community college students. Some researchers suggest a relationship exists between EI and important outcome variables (e.g., occupational success & satisfaction with life). However, other researchers suggest measures of EI may simply assess personality variables known to predict these variables. I used the Mayer, Salovey, and Caruso Emotional Intelligence Test (MSCEIT) to investigate how much additional variance in SWL, EI predicts after three personality variables (self-esteem,depression, and locus of control). A convenience sample of 200 Central Florida Community College Students completed the following instruments: 1) MSCEIT(Mayer, …
Transit Market Evaluation Of Seniors Losing Driving Privileges, Oliver A. Page
Transit Market Evaluation Of Seniors Losing Driving Privileges, Oliver A. Page
USF Tampa Graduate Theses and Dissertations
The projected growth of persons ages 65 and older in the U.S. over the next few decades will usher in an era of unprecedented numbers of seniors licensed to drive. For some members of this group, there will come a time where driving will have to cease due to a variety of factors. At that juncture in their lives, these seniors may have to consider transportation alternatives other than the personally operated vehicle. The objective of this study is to evaluate potential changes in transit market share arising from travel behavior changes of seniors who lose their driving privileges. This …
The Science And Policy That Compels The Wetland Mitigation Of Phosphate-Mined Lands, Nejma Danielle Piagentini
The Science And Policy That Compels The Wetland Mitigation Of Phosphate-Mined Lands, Nejma Danielle Piagentini
USF Tampa Graduate Theses and Dissertations
The State of Florida ranks fifth in the world's production of phosphate. The phosphate industry relies on surface mining to withdraw the phosphate ore, and this process can devastate the natural environment. One of the most impacted natural resources is wetlands. Federal laws permit the legal destruction of wetlands providing their loss is compensated by the mitigation (i.e., the restoration, creation, or enhancement) of other wetlands, but the complexity of wetland ecosystems makes the mitigation process difficult. One of the goals of this thesis is to review the established Federal, State and non-regulatory guidelines for the development and maintenance of …
Perceptions Of School Climate And Bullying In Middle Schools, Irene Pintado
Perceptions Of School Climate And Bullying In Middle Schools, Irene Pintado
USF Tampa Graduate Theses and Dissertations
Bullying has been identified as a problem that can affect the physical and psychosocial health of both the aggressors and victims. Given the consequences for those who bully, for victims, and for the school environment, early intervention is important to minimize these risks. School staff need additional data to understand the scope of bullying and to adopt effective strategies. This study seeks to meet this need by analyzing the association of bullying behaviors and school climate perceptions of middle school students within the context of school membership. This study used Bronfenbrenner's ecological system theory. Within this framework, a bullying interaction …
Clarifying The Cohesion-Performance Relationship In Teams: Backup Behavior As A Mediating Mechanism, Matthew S. Prewett
Clarifying The Cohesion-Performance Relationship In Teams: Backup Behavior As A Mediating Mechanism, Matthew S. Prewett
USF Tampa Graduate Theses and Dissertations
The relationship between team cohesion and team performance has been extensively studied, but behavioral mediators of this relationship have not been adequately assessed. This study proposed that backup behavior mediates the relationship between team cohesion and team performance. In addition, it was also hypothesized that team goal commitment would moderate the relationship between team cohesion and team backup behavior. 138 participants forming 46 teams of three were assigned to one of fours conditions to test this framework: high cohesion/high goal commitment, high cohesion/low goal commitment, low cohesion/high goal commitment, and low cohesion/low goal commitment. Results indicated no significant differences between …
Statistical Models In Environmental And Life Sciences, Lakshminarayan Rajaram
Statistical Models In Environmental And Life Sciences, Lakshminarayan Rajaram
USF Tampa Graduate Theses and Dissertations
The dissertation focuses on developing statistical models in environmental and life sciences. The Generalized Extreme Value distribution is used to model annual monthly maximum rainfall data from 44 locations in Florida. Time dependence of the rainfall data is incorporated into the model by assuming the location parameter to be a function of time, both linear and quadratic. Estimates and confidence intervals are obtained for return levels of return periods of 10, 20, 50, and 100 years. Locations are grouped into statistical profiles based on their similarities in return level graphs for all locations, and locations within each climatic zone. A …
Educational Backgrounds And Teaching Styles Of Athletic Training Educators In Entry-Level Caahep Accredited Athletic Training Programs Valerie J. Rich, Valerie J. Rich
Educational Backgrounds And Teaching Styles Of Athletic Training Educators In Entry-Level Caahep Accredited Athletic Training Programs Valerie J. Rich, Valerie J. Rich
USF Tampa Graduate Theses and Dissertations
The purpose of this study was to describe the educational backgrounds and teaching styles of athletic training educators and to see if a relationship existed between educational backgrounds and teaching styles. An electronic survey was e-mailed to 338 Program Directors of CAAHEP accredited undergraduate and graduate athletic training education programs. The survey was also posted on the athletic training educator's listserv to recruit more participants. The survey contained questions regarding demographics and educational history, as well as the Teaching Styles Inventory (Grasha, 2002). A total of 198 athletic training educators responded to the survey, and 174 filled out the survey …
Women In Nontraditional Careers, Teresa Ann Roche
Women In Nontraditional Careers, Teresa Ann Roche
USF Tampa Graduate Theses and Dissertations
In a traditional male dominated field such as construction, and automotive technology, artificial barriers and attitudes have often prevented qualified females from reaching their full potential. The late entrance of females into these fields has created very few role models for nontraditional younger females entering these professions. This study was designed to create a profile for nontraditional females working in a male dominated work force. A large percentage of females have experienced some barriers due to discrepancies in gender performance. Acceptance by peers, community and administrators, combined with the challenge of balancing family and career appears to be areas of …
Characterization Of Community-Acquired Methicillin-Resistant Staphylococcus Aureus By Pulsed-Field Gel Electrophoresis, Multilocus Sequence Typing, And Staphylococcal Protein A Sequencing: Establishing A Strain Typing Database, Jill Carolyne Roberts
USF Tampa Graduate Theses and Dissertations
Staphylococcus aureus has long been recognized as a leading cause of nosocomial infection. However, several recent publications have demonstrated this pathogen as the cause of community-acquired severe wound infections and necrotizing pneumonia in otherwise healthy individuals. These highly virulent endemic clones have been reported in several locations in the United States and Canada. The rapid spread of the organism, the ability of certain clones to cause serious infection, and the antibiotic resistance of the endemic clones, illustrates the importance of infection control measures. In this study we examined three S. aureus typing techniques; pulsed-field gel electrophoresis (PFGE), multilocus sequence typing …
An Analysis Of The Legal Contexts Of Public Education Law: Its Judicial Interpretations And Applications With Regard To Discipline And Special Education And Non-Special Education Students In K-12 Public Schools, Janet Marie Roland
USF Tampa Graduate Theses and Dissertations
This study investigated legal implications of differential disciplinary treatment of special education and non-special education students in K-12 public schools. It focused on interpreting and applying federal and state education legislation by courts and how various judicial decisions affect discipline practices in public school systems, asking if preferential treatment was afforded to students with disabilities through implementation and interpretation of educational legislation.The historical myriad of complex legislation passed before and after inception of Public Law 94-142 in 1975 was studied, exploring relationships between school discipline of children who do and do not receive special education services. Research included review of …
Spin Polarization Measurements And Sensor Applications In Thin Films And Carbon Nanotube-Based Devices, Jeff T. Sanders
Spin Polarization Measurements And Sensor Applications In Thin Films And Carbon Nanotube-Based Devices, Jeff T. Sanders
USF Tampa Graduate Theses and Dissertations
The unique properties of carbon nanotubes (CNTs) show a great deal of potential for nanoelectronic devices, spintronic devices, biosensing and chemical sensing applications. Their applicability as interconnects for spintronic devices derives from their one-dimensionality and theoretically predicted preservation of spin current. In this work, we combine an investigation of spin polarization in materials such as half metallic oxides in thin film and bulk form with studies on several aspects of CNTs for sensing and spin transport applications. These two areas of study are intimately related within the umbrella of spin-electronics and nanoscale sensors that are being pursued with great topical …
An Investigation Of A Dual-Factor Model Of Mental Health And Related Physical Health Outcomes Among Early Adolescents, Emily J. Shaffer
An Investigation Of A Dual-Factor Model Of Mental Health And Related Physical Health Outcomes Among Early Adolescents, Emily J. Shaffer
USF Tampa Graduate Theses and Dissertations
This study investigated the mental and physical health of early adolescents (n = 339) using a dual-factor model of mental health. When employing a dual-factor model, mental well-being is not simply assumed from the absence of negative indicators of mental health (psychopathology). Rather, assessments of positive indicators of mental health (subjective well-being) are used to determine one's level of mental wellness. The current study tested the existence of a dual-factor model of mental health by examining the separability of participants' reports of subjective well-being and psychopathology. Specifically, the researcher hypothesized that the assessment of both of these constructs would result …
The Causal Effect Of Alcohol Consumption On Employment Status, Chanvuth Sangchai
The Causal Effect Of Alcohol Consumption On Employment Status, Chanvuth Sangchai
USF Tampa Graduate Theses and Dissertations
Alcohol consumption may affect labor market outcomes directly through a reduction in productivity and indirectly through human capital accumulation. However, empirical results from previous studies in the economics literature are mixed and inconclusive. While some researchers found negative effects of alcohol use on labor market outcomes, quite a few studies found either positive or insignificant effects. The purpose of this dissertation is to estimate causal effects of alcohol consumption on employment status. It uses three data sets previously unexploited for this purpose and attempts to eliminate any potential estimation problems from previous studies. The results show that previous problematic heavy …
The Effect Of Transportation Subsidies On Urban Sprawl, Qing Su
The Effect Of Transportation Subsidies On Urban Sprawl, Qing Su
USF Tampa Graduate Theses and Dissertations
This dissertation investigates transportation subsidies as sources of urban sprawl. Apart from tolls, motorists do not pay highway user-fees, but they do pay gasoline taxes. Gasoline tax revenues are insufficient to cover the U.S. highway costs. Government, therefore, uses general tax revenues to cover highway expenditures. Since users do not pay the full cost of their travel, they have an incentive to travel longer commuting distances. Highway subsidies are, therefore, a potential contributor to urban sprawl. A similar argument applies to public transit. To capture the effects of subsidized automobile and public transit travel, we ex-tend the standard urban spatial …
8-Isoprostane Levels In Exhaled Breath Condensate Of Pregnant Women Compared To Non-Pregnant Women; Is There A Baseline Difference?, Rosemary Szollas
8-Isoprostane Levels In Exhaled Breath Condensate Of Pregnant Women Compared To Non-Pregnant Women; Is There A Baseline Difference?, Rosemary Szollas
USF Tampa Graduate Theses and Dissertations
This study investigated whether or not there was an overall difference in the pulmonary oxidative marker, 8-isoprostane (PGF2-a), found in exhaled breath condensate, during pregnancy versus the non-pregnant state. The utility of this information was important secondary to the effect of maternal asthma on pregnancy and outcome, as it has been demonstrated in past studies that overall pregnant females with asthma have been shown to have an increased risk of exacerbation requiring medical intervention.The primary goal of this study sought to determine if there is a difference in PGF2a levels in the exhaled breath condensate of pregnant versus non-pregnant females. …