Digital Commons Network^™

Cyber-Bullying In High School: Associated Individual And Contextual Factors Of Involvement, Marissa Alexis Feldman

USF Tampa Graduate Theses and Dissertations

For the past several decades, researchers have extensively investigated the impact of bullying on the nation's youth. Although we may now have a better understanding of these maladaptive behaviors, recent technological advances have created a new forum for bullying. The current study investigated adolescent experiences with cyber-bullying using a self-report survey. Youth (N=2,086) from five high schools (grades 9-12) were surveyed to identify individual, peer, parenting, and school factors hypothesized to be related to involvement in cyber-bullying as a victim, perpetrator, or both. Results indicated that cyber-involvement was related to a variety of psychosocial factors, with students who were both …

Microbial Ecology And Functional Genomics Of Deep-Water Coral-Associated Microbes, Julia Parker Galkiewicz

USF Tampa Graduate Theses and Dissertations

Lophelia pertusa is a cosmopolitan cold-water coral, often found in aphotic waters (>200m). Aggregations of L. pertusa (reefs) provide important habitat to many invertebrate and fish species and act as biodiversity hotspots in the deep sea. The health and diversity of these reefs is of vital importance to deep-sea ecosystems, and the microbial consortia associated with L. pertusa form the most basic ecological level. Deciphering the diversity and function of these microbes provides insight into the roles they play in maintaining reef health. This dissertation takes microbiological techniques that are used in shallow-water coral microbial research and applies them …

Hiv Education For Youth In Transition To Adulthood, Peter Eugene Gamache

USF Tampa Graduate Theses and Dissertations

This dissertation investigated the role of Human Immunodeficiency Virus (HIV) stigma in program implementation. A case study design comprising qualitative methods provided in-depth, context-sensitive comparisons of adult educator (n = 8) and youth (n = 67) perspectives among programs that provide HIV services and those that provide risk reduction services. Nearly half of the youth participants were male, 42% were female, and 6% identified as transgender. Two thirds of participants were Black or African American, one quarter of participants were Hispanic or Latino, and the average participant age was 19. Although program personnel from all youth service programs in this …

The Role Of Hiv-1 Proteins In Alzheimer's Disease Pathology, Brian Nelson Giunta

USF Tampa Graduate Theses and Dissertations

Prevalence of HIV-associated cognitive impairment is rising, the worst form of which is HIV-associated dementia (HAD). The disease is fuiled by a chronic innate type pro-inflammatory response in the brain which is highly dependent upon the activation of microglia. We first created an in vitro model of HAD composed of cultured microglial cells synergistically activated by the addition of IFN-gamma and the HIV-1 coat glycoprotein, gp120. This activation, as measured by TNF-alpha and NO release, is synergistically attenuated through the alpha7nAChR and p44/42 MAPK system by pretreatment with nicotine, and the cholinesterase inhibitor, galantamine. As these medications have been FDA …

Internships In Public Relations And Advertising: The Nature Of The Experience From The Student's Perspective, Catherine Ann Gugerty

USF Tampa Graduate Theses and Dissertations

This qualitative content analysis examines the nature of experience of public relations and advertising interns. Three decades of scholarly inquiry into the internship experience has provided little insight into the actual experience of the interns themselves. Yet what is learned directly from their individual experience can provide both educators and professionals valuable insight for enhancing the learning process. The following study is a qualitative content analysis of journals and focus groups of undergraduates enrolled in public relations and advertising internships/practicums. The interns' experience follows four themes: (1) the perception of importance; (2) perceived learning benefits; (3) influence of supervisors; and …

Energy Recovery Devices In Seawater Reverse Osmosis Desalination Plants With Emphasis On Efficiency And Economical Analysis Of Isobaric Versus Centrifugal Devices, Mageed Jean Guirguis

USF Tampa Graduate Theses and Dissertations

With huge demands for potable water in regions lacking fresh water sources such as surface or ground water, various potential technologies have been explored for eliminating water shortage. Seawater emerged as a potential source and a major lifeline for such water-deprived areas. The development of seawater reverse osmosis (SWRO) technology proved to be a groundbreaking innovation, making it easier to extract pure water from seawater. Ever since its inception, SWRO technology has taken many leaps towards the development of energy efficient and high yielding systems. The reduction in energy consumption of desalination plants that were based on the SWRO technology …

Framing And The End Of Operation Iraqi Freedom, James Robert Hickman

USF Tampa Graduate Theses and Dissertations

The purpose of this qualitative framing study is to analyze the dominant frames that were reflected in the news coverage of two separate Presidential speeches marking the proposed cessation of combat operations in Operation Iraqi Freedom. In order to determine which frames emerged in the coverage of each speech, a content analysis of 105 articles from 4 national newspapers was conducted. Analysis included the week preceding and the week following each speech in an effort to capture the immediate coverage surrounding each address. The findings suggest that the dominate frames utilized were the economic consequences frame, the responsibility frame and …

Informal Karst Education In The United States And Internationally, Leslie A. North

USF Tampa Graduate Theses and Dissertations

Despite the abundance of karst terrains and the important role they play in a wide variety of roles including supplying freshwater drinking supplies, no single, comprehensive study investigates the role of informal education for the improved understanding and protection of the terrains. Commonly overlooked anthropogenic karst disturbances partially occur because of the poor dissemination of scientific information to the general populace and policymakers and budgetary and time constraints of municipalities, thus generating a need to use informal education to fill these shortcomings. The purpose of this study was to: 1) establish the status of and quantify the amount of karst-related …

"We Have Never Known What Death Was Before"--A Just War Doctrine Critique Of U.S. History Textbooks, Mark Pearcy

USF Tampa Graduate Theses and Dissertations

Textbooks are a significant element of the social studies curriculum and teacher pedagogical choice (Apple, 2004; Apple & Christian-Smith, 1991). Students' views of American history are dramatically affected by the textbook narratives to which they are exposed, and teachers often tilt their curricular choices based on the textbooks available to them (Luke, 2006; Schug, Western & Enochs, 1997). The history of our nation's armed conflicts is often presented, through our textbooks and our pedagogy, as a history of reluctant violence, which promotes a particular moral agenda that exerts control over our students' future beliefs and decisions. This is particularly important …

Synthesis And Antimicrobial Activities Of S,S'-Heterosubstituted Disulfides, Praveen Ramaraju

USF Tampa Graduate Theses and Dissertations

Antibiotic resistance is a particularly critical health concern and has increased dramatically over the past two decades. For over a decade the Turos laboratory has been designing small molecules to target pathogenic microbes such as Staphylococcus aureus and the resistant variants like methicillin-resistant Staphylococcus aureus (MRSA). Previously, N-thiolated Β-lactams, N-thiolated 2-oxazolidinones and aromatic disulfides that were synthesized in Dr. Turos' lab have shown strong activity against these bacteria. The present work describes the synthesis and antimicrobial activities of a related structural class called S,S'-heterosubstituted disulfides. For ages, sulfur (elemental) has been used as an antibacterial for controlling infestation and bacterial …

Guiding Electric Fields For Electroporation Applications, Jose Rey

USF Tampa Graduate Theses and Dissertations

Electroporation is the critical step in an electric field mediated drug or gene delivery protocol. Electroporation based protocols have been successfully demonstrated in cancer clinical trials, however, its impact in other applications is still under investigation. A significant roadblock to long term functioning of implantable biosensors in vivo is the tissue reaction in the form of fibrous encapsulation that results in reduced transport to the sensing element of the biosensor. In vivo gene electroporation has a great potential as a means to modify the transport properties of tissues in the proximity of the sensing element of implantable biosensors.

This dissertation …

Effects Of Solids Loadings And Particle Size Distribution On Siphon Ceramic Candle Filters, Danielle Renzi

USF Tampa Graduate Theses and Dissertations

In the rural areas of Madagascar only 29% of the population has access to clean water and 10% has access to improved sanitation. It has been estimated that environmental risk factors, such as inadequate access to clean drinking water and proper sanitation, are responsible for 94% of the diarrheal disease burden. This study was focused on testing a point-of-use technology called the Tulip filter, which is a siphon ceramic candle filter impregnated with silver. The purpose is to assess its feasibility for implementation in rural regions of Madagascar through a laboratory study performed at the University of South Florida.

The …

Characterization Of Aminopeptidase Pepz In Staphylococcus Aureus Virulence, Tiffany Marie Robison

USF Tampa Graduate Theses and Dissertations

Staphylococcus aureus is a remarkably successful pathogen, accounting for an estimated 95,000 invasive infections annually in the U.S. alone. The burden of MRSA infections on public healthcare continues to rise, particularly with the continued spread of antibiotic resistant strains and the hyper-virulent CA-MRSA strains. The pathogenic nature of S. aureus can be attributed to the cache of virulence factors encoded within the genome of this organism. Typically, these are secreted toxins which directly interact with the host during infection, and facilitate pathogenesis. A previous screen in our laboratory investigating proteases in S. aureus identified a mutant in aminopeptidase Z as …

Gaming Literacy: Construct Validation And Scale Construction, Kenneth Allen Rosenberg

USF Tampa Graduate Theses and Dissertations

This thesis is the first attempt to construct a standardized measure of literacy for the medium of video games, filling a gap in the literature by synthesizing various items of skills, behaviors, and affective components from existent studies and determining their correlations through analyzation of survey data. The five categories that were derived from conceptual review and factor analysis have high measures of internal consistency: Information and Systems Management; Exploration and Enjoyment; Teamwork; Design; and Socialization. To test for external consistency and reliability, the proposed gaming literacy model was compared to the Novak and Hoffman (1997) construction of flow, using …

The Culture Of Mean: Gender, Race, And Class In Mediated Images Of Girls' Bullying, Emily Davis Ryalls

USF Tampa Graduate Theses and Dissertations

This dissertation examines narratives about female bullying and aggression through mediated images of "mean girls." Through textual analysis of popular media featuring mean girls (television shows such as Gossip Girl and films like Mean Girls), as well as national news coverage of the case of Phoebe Prince, who reportedly committed suicide after being bullied by girls from her school, this feminist examination questions how the image of the mean girl is raced and classed. This dissertation values an interdisciplinary approach to research that works to make sense of the forces that produce bodies as gendered, raced, and classed.

One of …

Framing Christianity: A Frame Analysis Of Fundamentalist Christianity From 2000-2009, Rebecca Mackin Sitten

USF Tampa Graduate Theses and Dissertations

This qualitative frame analysis examines how print media handles the concept of Fundamentalist Christianity. The researcher examined news reports in four prominent national newspapers over the ten-year period between 2000 and 2009 for references made to Fundamentalist Christianity. The sample is examined on the basis of Mark Silk's "topoi," a term taken from classical rhetoric meaning commonplaces or themes (1995). Silk outlines seven common topoi on which stories about religion are written, and these are utilized as a framework for this present study. While much has been written and researched on how religious groups, Fundamentalist Christians, and Evangelicals use mass …

Modeling And Parameter Study Of Bistable Spherical Compliant Mechanisms, Chester Smith

USF Tampa Graduate Theses and Dissertations

The bistable spherical compliant mechanism (BSCM) is a novel device capable of large, repeatable, out-of-plane motion, characteristics that are somewhat difficult to achieve with surface micromachined microelectromechanical systems. An improved pseudo-rigid-body model (PRBM) to predict the behavior of the BSCM is presented. The new model was used to analyze seven different versions of the device, each with a different compliant joint length. The new model, which adds torsion, is compared with a finite element analysis (FEA) beam model. The new model more closely approximates the results yielded by FEA than previous models used to analyze the BSCM. Future work is …

Predictors Of Body Dissatisfaction, Eating Disturbance, And Depressive Symptoms In Mothers, Steffanie Sperry

USF Tampa Graduate Theses and Dissertations

Body image, eating disturbance, and depressive symptomatology have been examined extensively in the general population. The assessment of these variables within the postpartum period has also been a target of recent research. Unfortunately, no existing studies have examined the intercorrelations among these factors in mothers of young children, despite increasing media pressure for moms to maintain a slim, pre-pregnancy body. The current study examined predictors of body dissatisfaction, eating disturbance, and depressive symptoms in mothers of children aged 0-5. Simple correlations were followed by a series of linear multiple regressions incorporating sociocultural predictors alongside covariates identified in the extant literature. …

Evolution/Creationism Controversy: Analysis Of Past And Current Policies In Public Schools And The Practice Of Allowing Students To Opt-Out Of Learning Evolution Concepts, Jacquelyn Hoffmann Speake

USF Tampa Graduate Theses and Dissertations

Recent anti-evolution legislation, in the form of Academic Freedom bills, has been introduced in many state legislatures over the last three years. The language in the proposed Academic Freedom bills may allow different interpretations of what can be taught in the science classrooms, and possibly spur parents to take advantage of their perceived parental rights to request their child be opted-out of class when the scientific theory of evolution is taught. Five research questions guided the analysis of participant responses to questions and perception statements focusing on secondary school administrators' actions, perceptions, and awareness as they relate to their decision …

Food Deserts' And 'Food Swamps' In Hillsborough County, Florida: Unequal Access To Supermarkets And Fast-Food Restaurants, Dana Beth Stein

USF Tampa Graduate Theses and Dissertations

Research has shown that the suburbanization of supermarkets has created `food deserts', defined as areas where socially disadvantaged individuals lack access to nutritious food outlets. Additionally, the growing presence of fast-food restaurants has created `food swamps', or areas where socially disadvantaged individuals encounter an overabundance of unhealthy food outlets. While previous studies have analyzed either `food deserts' or `food swamps' using conventional statistical techniques, a more comprehensive approach that includes samples of both healthy and unhealthy entities and considers the variety of available food options is necessary to improve our understanding of the local food environment and related disparities.

This …

A Novel Device For Cell-Cell Electrofusion, Justin T. Stewart

USF Tampa Graduate Theses and Dissertations

Cell transplantation therapy is a potentially powerful tool and can be used to replace defective cells with healthy cells. This offers the possibility of alleviating the destructive symptoms for many diseases such as Parkinson's disease, Alzheimer's disease, stroke, spinal cord trauma, Type I diabetes and many more. While there are many diseases that could be positively impacted from cell transplantation therapy, the focus of this research is insulin dependent, Type I Diabetes.

The Islets of Langerhans are composed of various types of cells located in the pancreas and are responsible for a variety of biochemical functions. Specifically, the beta Islet …

The Abjection Of The Pythia, Alaina Dyann Tackitt

USF Tampa Graduate Theses and Dissertations

Recent academic research has garnered considerable popular interest on the matter of whether the Pythia, the Oracle of Delphi, was high. Current findings aim to prove that vapors emitted from beneath the tripod on which the Pythia prophesied were intoxicating, thereby causing her frenzied state and statements. Contemporary scientists’ intense interest in proving that the Pythia was not prophetic evokes the question of why the once widely accepted, now generally rejected, idea that a female body can serve as a vessel for the words of the immortal deity holds such significance for modern science. When this curiosity is considered in …

Ethnic Identities Among Second-Generation Haitian Young Adults In Tampa Bay, Florida: An Analysis Of The Reported Influence Of Ethnic Organizational Involvement On Disaster Response After The Earthquake Of 2010, Herrica Telus

USF Tampa Graduate Theses and Dissertations

Drawing upon 20 in-depth interviews with second generation Haitian young adults, I examined the ethnic identities and the involvement in ethnic organizations of the respondents. This study pays particular attention to how involvement in ethnic organizations influenced how the second generation Haitians believed the earthquake affected their identities and how they ultimately responded to the earthquake. Several of the findings revealed differences in how and why the respondents chose to ethnically identify such as Haitian, Haitian-American, black Haitian. The respondents' choice to join an ethnic organization was driven by different desires but the perceived influence of the organization on their …

Revision And Validation Of A Culturally-Adapted Online Instructional Module Using Edmundson's Cap Model: A Dbr Study, Marie A. Tapanes

USF Tampa Graduate Theses and Dissertations

In the present study, the Cultural Adaptation Process Model was applied to an online module to include adaptations responsive to the online students’ culturallyinfluenced learning styles and preferences. The purpose was to provide the online learners with a variety of course material presentations, where the e-learners had the opportunity to select their preferred structure for learning. The research methodology for the study is Design-Based Research (DBR), which has been identified by many prominent researchers in Instructional Technology as the most productive research approach for the field. DBR integrates different data types and data collection methods (quantitative, qualitative, and mixed) with …

Lo Barroco Lezamesco En Paradiso, Leonardo Venta

USF Tampa Graduate Theses and Dissertations

In this thesis I argue that José Lezama Lima's Paradiso is unique among Latin-American novels of the 1960s because it is a hybrid of literary genres - narrative and essay, as well as a "poetic system." Through an open literary framework, the author explores the essence of "cubanía" though language that is both colloquial and elaborate, both devoted to traditions and aiming for transgressions: a novel that reaches for the pinnacle of neobaroque prose. To sustain my argument, I have performed an exhaustive exegesis of my primary text, as well as extensive external research in secondary texts of the highest …

Narratives Of Architectural Revolution In Online Christian Rhetoric, Quentin David Vieregge

USF Tampa Graduate Theses and Dissertations

This dissertation examines how online Christian communities reconcile the democratizing, anti-hegemonic effects of dialogic web tools, such as wikis, blogs, and video-sharing sites with the authoritarian characteristics of some organized religions. In the first chapter, I discuss technodeterminism and what I call the theme of "revolutionary architectures" in digital humanities scholarship. This theme occurs in narratives that assume that a new interface, Internet tool, or type of coding will redefine the rhetorical relationship between writers, readers, and site administrators, usually in a benevolent way. I argue that scholars within the field of Computers and Composition use narratives of architectural revolution …

The Influence Of Time Spent By Students Engaged In Co-Curricular Involvement, Online Social Networking And Studying And Doing Coursework On Their Academic Achievement, Regina Young Hyatt

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to understand the relationship between time spent by students engaged in student co-curricular involvement, online social networking, and studying on their academic achievement. Additional factors such as student residence, gender, ethnicity, class standing and work for pay were also considered. Existing literature supports the concept that the more time students spend in educationally purposeful activities, the more likely students are going to be successful. Little research exists regarding the use of current versions of online social networking, and the relationship it might have to student academic achievement as measured by grade point average. Therefore, …

Sex And The Seas: Gene Transfer Agents, Elizabeth Young

USF Tampa Graduate Theses and Dissertations

Gene Transfer Agents (GTAs) are phage-like pthesiss that are produced by many alpha proteobacteria in late stationary growth phase and are capable of transferring chromosomal genes (termed "constitutive transduction"). Examination of alpha proteobacterial genomic sequences indicated widespread occurrence of GTA-like elements. The goal of this study was to investigate gene transfer potential of GTAs of marine alpha proteobacteria in culture as well as in natural marine environments. Another goal was to determine the potential of bacterial symbionts from zooxanthellae and coral to genetically transfer beneficial properties between symbionts. Ruegeria mobilis (ID 45A6) was isolated from cultures of the coral endosymbiotic …

Addressing The Decline Of Academic Performance Among First-Year Composition Students: A Usability Analysis Of Two Important Online Resources, Kate Zephyrhawke

USF Tampa Graduate Theses and Dissertations

An increasing number of students entering college lack the academic skills necessary to perform well at the college level, forcing professors and academic institutions to lower standards. Students approach higher education as a commodity, and as consumers they assert their desire for easier course work by giving poor evaluations to instructors whose courses they find too demanding or difficult. Eliminating student evaluations is one necessary change that will help reverse declining standards in higher education and increase performance; providing effective venues for supplemental instruction is another. Teaching basic writing skills in freshman composition courses would waste valuable instruction time that …

Inalienable Possessions And Flyin' West: African American Women In The Pioneer West, Justin Hosbey

USF Tampa Graduate Theses and Dissertations

Nicodemus, Kansas is one of the few remaining settlements founded by African American former slaves in the post-Civil War period of American history. Designated by the National Park Service as a National Historic Site in 1996, Nicodemus has secured its role as a place deemed important to the history of America. For this project, I worked as an intern for the Nicodemus Historical Society, under the direction of Angela Bates. This local heritage preservation agency manages archival and genealogical records important to Nicodemus descendants, and exhibits several of the community's cultural and material artifacts for the public. I was specifically …