Digital Commons Network^™

Transcriptional Control Of Toxoplasma Development, Joshua Byran Radke

USF Tampa Graduate Theses and Dissertations

Toxoplasma gondii is an obligate intracellular protozoan parasite of animals and man. The asexual life cycle of Toxoplasma involves three very distinct, but tightly coordinated developmental stages. In nature, the sporozoite (contained within an oocyst) and bradyzoite (contained within a tissue cyst) initiate infection of the intermediate host, followed by rapid differentiation into the actively replicating tachyzoite. When countered by an effective host response, the tachyzoite differentiates back into the latent bradyzoite and this unique ability of Toxoplasma to interconvert between the replicating tachyzoite and the latent bradyzoite within a single host is the cause of life long infection. The …

Dieting, Discrimination, And Bullying: A Contextual Case Study Of Framing In The National Association To Advance Fat Acceptance, Veronica Kay Doughman

USF Tampa Graduate Theses and Dissertations

The National Association to Advance Fat Acceptance (NAAFA), the largest size acceptance organization (Kwan 2009), recognizes and frames fat as an identity in need of protective policies. This framing is not without complication. Both the framing techniques utilized by this organization and the political context in which this organization exists are extremely complex. As a way to uncover this dynamic relationship, I analyze NAAFA's framing techniques (Snow and Benford 1988). Employing this social movement organization (SMO) as a case study (Snow and Trom 2002), I analyze the way this organization's framing and reframing (Benford and Hunt 2003) shifts across time …

Challenging The Democratic Peace Theory - The Role Of Us-China Relationship, Toni Ann Pazienza

USF Tampa Graduate Theses and Dissertations

The democratic peace theory proposes that democratic states are less likely to go to war with each other, but will go to war with nondemocratic states, and usually win. This is a theory that has generated much controversy. There is no denial that peace exists between democracies, but the controversies arise over why.

The twenty-first century has seen a rise in China (an autocratic state) and its struggle to obtain a presence on the world stage and equality with the United States (a democratic state). There has not been a militarized dispute between them and they report billions of dollars …

The Effect Of Airport Servicescape Features On Traveler Anxiety And Enjoyment, Vanja Bogicevic

USF Tampa Graduate Theses and Dissertations

The physical attributes of the service setting are critical differentiators among service providers that significantly influence customers' emotional responses. Following the changes in the airport industry and addressing the gap in the existing research, this study aims to investigate the relationship between physical servicescape elements, emotional responses of enjoyment and anxiety and word-of-mouth in the context of airport environment.

This study was conducted in three phases. The first phase incorporated an EFA conducted on a pilot study sample of 174 respondents that proposed a six-factor structure of airport service environment. In the second phase of the study, a self-administered online …

Baseline Studies Of Selected Polybrominated Diphenyl Ethers In The Air Of The Nandamojo Watershed, Costa Rica, Mary Sophia Geesey

USF Tampa Graduate Theses and Dissertations

Polybrominated diphenyl ethers (PBDEs) have been used as flame retardants in a number of common household and commercial products around the world. PBDEs enter the environment in a variety of ways, such as through emissions, leaching from end-of-life electronics in landfills, and incineration. While many countries have phased out the manufacturing of penta-, octa-, and deca-PBDEs or have banned the manufacture and use of these congeners altogether, these persistent organic pollutants (POPs) continue to be detected in humans and the environment.

This study investigates spatial and temporal variations of selected PBDEs in the air of the Nandamojo watershed area in …

Soil Remediation Using Solvent Extraction With Hydrodehalogenation And Hydrogenation In A Semicontinuous System, Robert John Panczer

USF Tampa Graduate Theses and Dissertations

The objective of this thesis is to aid in the development of Remedial Extraction And Catalytic Hydrodehalogenation (REACH), a green remediation technology used to remove and destroy halogenated hydrophobic organic compounds from soil. REACH has no secondary waste streams, uses an environmentally benign solvent, and aims to catalytically destroy rather than transfer the organic contaminants into a different phase. In this thesis, a bench-top semicontinuous model of the proposed remediation technology was constructed and used to extract the model contaminant, 1,2,4,5-tetrachlorobenzene, from soil and to convert it to an acceptable end product, cyclohexane. Palladium was used as a catalyst for …

Juvenile And Adult Involvement In Double Parricide And Familicide In The U.S.: An Empirical Analysis Of 20 Years Of Data, Averi Rebekah Fegadel

USF Tampa Graduate Theses and Dissertations

The killing of parents and stepparents by biological and stepchildren is a rare event. Incidents involving multiple parricide victims and/or multiple parricide offenders are an even rarer occurrence. The majority of studies on parricide involve a single victim and single offender. Using the National Incident-Based Reporting System (NIBRS), this study identified 603 single-victim, single-offender incidents, 22 single-victim, multiple-offender incidents, 60 single-offender double parricide incidents, 17 multiple-offender double parricide incidents, and 15 familicide incidents over the 20 year period 1990 to 2010. Univariate and bivariate analyses examined parricidal incidents involving single or multiple offenders and single or multiple victims with the …

Managing Family Food Consumption: Going Beyond Gender In The Kitchen, Blake Janice Martin

USF Tampa Graduate Theses and Dissertations

How have food identities and practices in upper middle class homes responded to foodie culture? While the majority of the sociological literature focuses on gendered divisions of labor in the kitchen, food security, and healthy eating, my research focuses on how foodie culture discourse has entered the home and shaped food identities and practice. My sample consists of interviews with thirteen parents, both mothers and fathers, with at least one child in the "tween" age range. Using grounded theory, I analyzed and coded the data for recurring themes. I then divided the participants into two groups based on how they …

Communication Behavior Study Of Support In The Arts Using The Situational Theory Of Publics And The Theory Of Reasoned Action, Ashleigh Gallant

USF Tampa Graduate Theses and Dissertations

The Arts in the United States has been a thoroughly studied topic, largely trying to substantiate its value to society, resulting in a plethora of research that positively correlates the arts and a more healthy and successful society. Findings from various studies over the years have shown declines in arts support in the form of funding, advocacy, education, and participation (National Endowment for the Arts, 2009). Additional studies have suggested that millennials are redefining what participation means in the arts, and even the definition of the arts. The primary research question of this study is why are support for the …

Motherhood Bound By State Supervision: An Exploratory Study Of The Experiences Of Mothers On Parole And Probation, Kaitlyn Robison

USF Tampa Graduate Theses and Dissertations

With an influx of women entering the incarcerated population comes an increase in the number of children who have a mother serving time. As these mothers are released from prison or jail they immediately enter into the parole or probation system. This research focuses on the experiences of these women within state supervision, but also on what it means to be a mother. Through thematic analysis of 8 in-depth interviews with women who are currently on or were recently released from probation or parole, this study explores how women manage the combined identity of "mother under state supervision." There are …

Investigation Of Tio2 And Invo4-Tio2 Semiconductors For The Photocatalytic Degradation Of Aqueous Organics, Sandra L. Pettit

USF Tampa Graduate Theses and Dissertations

Water is a vital natural resource. To develop more sustainable water systems, we must focus efforts on the removal of persistent contaminants. Aqueous organic contaminants include azo dyes, halogenated organics (e.g. pesticides), and algal and bacterial metabolites. The latter are common to surface waters and freshwater aquaculture systems and can cause taste and odor problems. Two of the principal organoleptic compounds are geosmin and 2-methylisoborneol (MIB). Traditional oxidation treatment methods, utilizing chlorine, hydrogen peroxide, and potassium permanganate, have been employed with varying levels of efficacy for removal of these and other organic contaminants. Advanced Oxidation Processes (AOPs) have greater potential …

"Die Mauer Im Kopf": Aesthetic Resistance Against West-German Take-Over, Arwen Puteri

USF Tampa Graduate Theses and Dissertations

Even 24 years after the Fall of the Berlin Wall, modern day Germans are still preoccupied with the contentious dynamics of the post-Wall unification process. Concern with geo-political fractiousness is deeply rooted in German history and the reason for Germany's desire to become a unified nation. The Fall of the Wall, and the subsequent rejection of socialism, was a chance to recover and unify what was perceived to be an "incomplete" nation. Yet, despite these actions, social unity between East and West Germans has never occurred and the Wall still persists as a metaphorical barrier in the minds of German …

A Recreation And Ballistic Evaluation Of Otto Schneeloch's Firearm Curiosity - The .307 Triangular, Amber Nicole Shukitis

USF Tampa Graduate Theses and Dissertations

Otto Scheeloch's U.S. Patent No. 134,442 of 1872 describes a unique firearm that uses triangular bullets. The current research effort evaluates the ballistic performance of Otto's disclosure for the very first time. To achieve this goal it was necessary to seek out surviving artifacts and scour the historical record in search of all the parameters needed to meticulously recreate the curious triangular cartridges and the corresponding gun barrel, with its matching twisted triangular bore. Every aspect of the resulting reproduction ammunition was made to be as authentic as possible, including the use of vintage civil war era bullet lead, bullet …

"We're Taking Slut Back": Analyzing Racialized Gender Politics In Chicago's 2012 Slutwalk March, Aphrodite Kocieda

USF Tampa Graduate Theses and Dissertations

This thesis examined bodied activism in Chicago's Slutwalk 2012 march, a contemporary movement initiated in Toronto, Canada that publicly challenged the mainstream sentiment that women are responsible for their own rape and victimization. Adopting an intersectional approach, I used textual analysis to discuss photographs posted on the official Chicago Slutwalk website to explore the ways this form of public bodied protest discursively engages women's empowerment from movement feminism as well as third wave and postfeminisms. I additionally analyzed the overall website and its promotional materials for the Slutwalk marches as well as how Chicago's photographic representations privilege the white female …

Public Knowledge And Sentiments About Elite Deviance, Cedric Michel

USF Tampa Graduate Theses and Dissertations

A growing body of research has revealed that the financial cost and physical harmfulness of elite deviance overshadow the impact of street crime on society (Knowlton et al., 2011; Landrigan et al., 2002; Leigh, 2011; Lynch & Michalowski, 2006; Herbert & Landrigan, 2000; Rebovich & Jiandani, 2000; Reiman & Leighton, 2010). However, despite such discrepancies, crimes of the poor continue to outshine white-collar offenses in the news media (Barak, 1994; Barlow & Barlow, 2010; Ericson et al., 1991; Lynch & Michalowski, 2006; Lynch, Nalla & Miller, 1989; Lynch, Stretesky & Hammond, 2000), the criminal justice system (Calavita, Tillman, & Pontell, …

A Phenomenological Study Of The Experiences Of Higher Education Students With Disabilities, Allen J. Heindel

USF Tampa Graduate Theses and Dissertations

Distance education has the potential to offer a meaningful alternative for students with disabilities. Colleges and universities have opportunities to provide quality online courses to students with disabilities; yet data show these students may often choose to discontinue higher education pursuits. Little is currently known about how students with disabilities experience the distance learning environment or how institutions of higher education. This phenomenological study focuses on the quality of the learning experiences and learner satisfaction of students with disabilities in distance education courses.

The purpose of this study is to investigate 1) how online learning is experienced by students with …

British Cultural Narrative In Winston Churchill's Political Communication, Andres L. Faza

USF Tampa Graduate Theses and Dissertations

This study uses Winston Churchill's "We Shall Fight on the Beaches" speech, delivered to the House of Commons following the evacuation of Dunkirk, France in June 1940, as a source text by which to examine Churchill's use of British cultural narratives in political communication. Narrative and heuristic theories are proposed as means by which listeners process such messages. A number of rhetorical devices are defined, in order to inform a discussion of the narratives identified, particularly the means by which those narratives were rhetorically embedded in the text. After a careful examination of the source text, the narratives of knighthood …

Theoretical And Experimental Investigations To Improve The Performance Of Surface Acoustic Wave (Saw) Biosensors, Mandek Richardson

USF Tampa Graduate Theses and Dissertations

The objective of this dissertation is to improve the performance of surface acoustic wave (SAW) biosensors for use in point-of-care-testing (POCT) applications. SAW biosensors have the ability to perform fast, accurate detection of an analyte in real time without the use of labels. However, the technology suffers from the inability to differentiate between specific and non-specific binding. Due to this limitation, direct testing of bodily fluids using SAW sensors to accurately determine an analyte's concentration is difficult. In addition, these sensors are challenged by the need to detect small concentrations of a biomarker that are typically required to give a …

Factors Influencing Vaccination Decisions In African American Mothers Of Preschool Age Children, Chauntel Mckenzie Mcnair

USF Tampa Graduate Theses and Dissertations

Rates and coverage levels of immunizations of African-American children are reduced compared to other races. Few studies have identified factors that influence vaccination decisions of African-American mothers. This study assessed the mothers' vaccination decisions using a self-administered questionnaire and a screening instrument for determining health literacy. This instrument is called Rapid Estimate of Adult Literacy in Medicine (REALM). The sample was 92 African American mothers, recruited from a large metropolitan church in Jacksonville, Florida, who had at least one child under the age of seven. A cross-sectional research design was used to administer survey instruments to identify and interpret parental …

Students' Perceptions On Issues Related To Globalization At A Four-Year Community College In Florida, Vickie Hall Stevens

USF Tampa Graduate Theses and Dissertations

The purpose of this dissertation was to survey community college students in order to evaluate their perceptions of the awareness and significance of global-mindedness or worldview of interconnectedness to the global community. The sample of participants included students at a 4-year community college in Florida. The results can be valuable and informative as a needs assessment in curriculum reforms to provide more globally minded courses and programs; consequently, better prepare graduates to compete in the global job market.

A Novel Method For Watermarking Sequential Circuits, Matthew Lewandowski

USF Tampa Graduate Theses and Dissertations

We present an Intellectual Property (IP) protection technique for sequential circuits driven by embedding a decomposed signature into a Finite State Machine (FSM) through the manipulation of the arbitrary state encoding of the unprotected FSM. This technique is composed of three steps: (a) transforming the signature into a watermark graph, (b) embedding watermark graphs into the original FSM's State Transition Graph (STG) and (c) generating models for verification and extraction. In the watermark construction process watermark graphs are generated from signatures. The proposed methods for watermark construction are: (1) BSD, (2) FSD, and (3) HSD. The HSD method is shown …

An Application Developed For Simulation Of Electrical Excitation And Conduction In A 3d Human Heart, Di Yu

USF Tampa Graduate Theses and Dissertations

This thesis first reviews the history of General Purpose computing Graphic Processing Unit (GPGPU) and then introduces the fundamental problems that are suitable for GPGPU algorithm. The architecture of GPGPU is compared against modern CPU architecture, and the fundamental difference is outlined. The programming challenges faced by GPGPU and the techniques utilized to overcome these issues are evaluated and discussed.

The second part of the thesis presents an application developed with GPGPU technology to simulate the electrical excitation and conduction in a 3D human heart model based on cellular automata model. The algorithm and implementation are discussed in detail and …

Novel Approach Of Using Polyvinylidene Fluoride Langmuir-Schaefer Film On Graphene-Polyaniline Nanocomposite For Supercapacitor Applications, Venkata Priyanka Bolisetty

USF Tampa Graduate Theses and Dissertations

Supercapacitors are well known for their improvised power density compared to batteries. Ongoing research is mainly focused on improving the energy density of supercapacitors by using different electrode material nanocomposites. The recent research has revealed that graphene (G)-polyaniline (PANI) nanocomposite could be a promising material for supercapacitor applications. The supercapacitor is also associated with self-leakage current regardless of any electrode material. The main objectives of the project are to: (i) synthesize highly fabricate supercapacitor based of G-PANI electrode; (ii) improve the energy density of supercapacitor by applying ultrathin monolayer/monolayers film electrode surface. It is crucial to either improve or retain …

Zero Tolerance For Marginal Populations: Examining Neoliberal Social Controls In American Schools, Brian Gregory Sellers

USF Tampa Graduate Theses and Dissertations

This study's purpose is to investigate the expansion of social control efforts in American elementary and secondary school settings, particularly the use of zero-tolerance policies. These policies entail automatic punishments, such as suspensions, expulsions, and referrals to the juvenile and criminal justice systems for a host of school-based infractions. The widespread implementation of zero-tolerance policies and the application of harsh, exclusionary sanctions have intensified over the past decade. Numerous studies have documented this rise; however, there has been little effort to explore the explanation of the expansion of school-based social controls.

A potential explanation is found in the application of …

Delta Encoding Based Methods To Reduce The Size Of Smartphone Application Updates, Nikolai Samteladze

USF Tampa Graduate Theses and Dissertations

In 2012 the two biggest smartphone application markets - the Google Play store and the Apple App Store - each had close to 700 thousand applications with approximately 2 billion downloads happening every month. The introduction of new features and correction of bugs and security vulnerabilities make it usual for mobile application developers to release new version of an application every month. Combined with the great smartphone popularity, it leads to approximately 400 PB annual traffic generated by app updates in the U.S. wireless networks alone. Being partially transmitted through cellular networks, mobile application updates traffic accounts to up to …

The Effects Of Video Self-Evaluation On Skill Acquisition With Yoga Postures, Holly Elizabeth Downs

USF Tampa Graduate Theses and Dissertations

This study evaluated the use of video self-evaluation and video feedback procedures to enhance the accuracy of yoga poses. In the self-evaluation intervention participants watched their behaviors via video and scored task analyses for feedback for each pose. In the video feedback intervention, the participants and the researcher together scored the task analyses for the behaviors along with practice during video recordings. The interventions were assessed in a multiple baseline across behaviors design. Results showed that both video self-evaluation increased the accuracy of all poses and video feedback further increased the accuracy on one pose for one participant

Self-Control, Attitudinal Beliefs, And White-Collar Crime Intentions, Melissa Anne Lugo

USF Tampa Graduate Theses and Dissertations

Gottfredson and Hirschi's general theory of crime (1990) has received a great deal of empirical examination in the criminology, yet the application of this theory to white-collar crime offenders has not received a great deal of attention. Research that has been conducted in the realm of white-collar crime has yielded mixed support for low self-control in explaining such offenses (Simpson and Piquero, 2002; Reed and Yeager, 1996; Langton et al., 2006; Blickle, 2006). The current study seeks to supplement the literature by focusing not simply on the direct causal links between self-control and white-collar offending, but also exploring how attitudes …

Vapor-Liquid-Solid(Vls) Grown Silica (Siox) Nanowires As The Interface For Biorecognition Molecules In Biosensors, Eduardo Murphy-Pérez

USF Tampa Graduate Theses and Dissertations

SiOx nanowires grown through the VLS mechanism were electrophoretically deposited on top of Au electrodes. GOx was immobilized using APTES and the EDC-NHS chemistry. Cyclic Voltammetry was used as the method to characterize the electrodes through their processing steps, and CV was also used to detect glucose in a PBS based solution. Ferro-Ferri Cyanide couple was used as the mediator.

A Biocompatible Sic Rf Antenna For In-Vivo Sensing Applications, Shamima Afroz

USF Tampa Graduate Theses and Dissertations

A continuous glucose sensor employing radio frequency (RF) signals is presented using the biocompatible material Silicon Carbide (SiC). Unlike biosensors that require direct contact with interstitial fluids to trigger chemical reactions to operate, this biocompatible SiC sensor does not require a direct interface. The sensing mechanism for this SiC sensor is based upon a shift in resonant frequency, as a function of change in glucose levels, which electrically manifests itself as a change in blood permittivity and

conductivity. For in vivo applications the antenna sensor needs to operate inside the body environment, and it has been found that the best …

State-Corporate Crime In The Democratic Republic Of Congo, Veronica Jane Winters

USF Tampa Graduate Theses and Dissertations

This study addresses the need for a parsimonious theoretical model to explain state-corporate crime. The Integrated Theoretical Model of State-Corporate Crime will be compared to the Integrated Theory of International Criminal Law Violation to determine which model provides the most accurate theoretical depiction of state- corporate crime, while retaining parsimony. For this comparison, the models will be applied to Democratic Republic of Congo case study. Using a secondary analysis of qualitative data and preexisting literature, it was found that the Integrated Theoretical Model of State-Corporate Crime displays a representative depiction of all state-corporate crime actors and their catalysts for action …