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Avatar Self-Identification, Self-Esteem, And Perceived Social Capital In The Real World: A Study Of World Of Warcraft Players And Their Avatars, Melissa Watts

USF Tampa Graduate Theses and Dissertations

This study explored the relationship between people who play massively multiplayer online roleplaying games (MMORPGs) and their avatars, as well as the impact on players’ self-esteem and perceived social capital in the real world. To examine these influences of online video gameplay, this research investigated gamers who play the popular MMORPG, World of Warcraft (WoW). This study employed an online survey made available on Reddit, a widely-used news, entertainment, and social-networking website, in which all the content is user-generated. The research questionnaire was intended to reveal the bond between MMORPG players and their avatars; the study examined how this relationship …

Analysis And Processing Of Human Electroretinogram, Abdulrahman Mohammad Alaql

USF Tampa Graduate Theses and Dissertations

Electroretinagram (ERG) is the recording of electrical activity of retinal cells elicited by light stimulation, which has been widely used to help diagnose different types of retinal dysfunctions. The ERG response signal is a short non-stationary signal that contains overlapping components. Different Digital Signal Processing (DSP) techniques are investigated using MATLAB to study the time-frequency responses of the ERG signal such as Short Time Fourier Transform (STFT), Continuous Wavelet Transform (CWT) and Discrete Wavelet Transform (DWT). The Photopic ERG signal was processed and analyzed in this thesis and the results of each technique have been investigated in detail. The Photopic …

Metabolic Therapy For Age-Dependent Impaired Wound Healing, Shannon Lynn Kesl

USF Tampa Graduate Theses and Dissertations

Chronic wounds represent an under-acknowledged socioeconomic epidemic, affecting 1.8 million new patients per year and costing the US health care system upwards of $25 billion annually. This substantial cost is rapidly growing due to a disproportionate occurrence in the ever-aging population. Key features associated with age-related impairment of wound healing include limited energy and nutrient exchange, unremitting inflammations, increased reactive oxygen species (ROS), and diminished blood flow. Most chronic wound therapies target specific molecular mechanisms; however, there are often multiple mitigating factors that prevent normal wound closure. This is likely one reason most wound therapies are minimally effective. In the …

Motivation Of Adult, Auditioned Community Choirs: Implications Toward Lifelong Learning, David James Redman

USF Tampa Graduate Theses and Dissertations

Knowledge of motivation factors can assist conductors and music educators at all levels in planning and implementation of musical goals. The purpose of this study was to identify motivational factors to join the choir and maintain membership in the choir as well as the role of stress/anxiety in maintaining choral membership. In addition, the role of musicianship was evaluated in terms of music aptitude and vocal ability. Participants (N=135) from four adult, auditioned community choirs participated in this study. Data was collected using Advanced Measures of Music Audiation, Singing Coach, measure of vocal ability and a questionnaire relating to topics …

Incidence, Persistence, And Recurrence Of Anogenital Α- Mucosal Hpv Infections (Hpv 6, 11, 16, 18, 31, 33, 45, 52 And 58), Shitaldas J. Pamnani

USF Tampa Graduate Theses and Dissertations

Objectives: The aims of this study were to: 1) Assess whether naturally induced anti-HPV antibodies are associated with subsequent acquisition of genital HPV 6, 11, 16, and 18 infections in men, 2) assess the recurrence (redetection) of genital HPV infections of the 9-valent vaccine HPV types and investigate factors associated with recurrent infections among men, and 3) assess the risk of type-specific sequential acquisition of anal HPV infection following a genital HPV infection of the 9-valent vaccine HPV types among men who have sex with women (MSW).

Methods: 4,123 healthy men were followed every six months (median follow-up time 4.1 …

Factors Associated With Sexually Transmitted Infections (Stis) And Multiple Sti Co-Infections: Results From The Evri Hiv Prevention Preparedness Trial, Ubin Pokharel

USF Tampa Graduate Theses and Dissertations

Objective: The objective of this study was to describe the prevalence of sexually transmitted co-infections and assess factors associated with a single infection and co-infections.

Methods: A total of 388 women were included in this study. At enrollment of the EVRI trial women were tested for five STIs: Human papilloma virus (HPV), Chlamydia trachomatis, Neisseria gonorrhoeae, Herpes simplex virus-2 (HSV-2) and Treponema pallidum. Prevalence of STI infections and proportion of women with different combinations of co-infections were calculated. Factors associated with single infection and STI co-infection were assessed using a polytomous logistic regression model and odds ratio …

A Comparison Of Educational "Value-Added" Methodologies For Classifying Teacher Effectiveness: Value Tables Vs. Covariate Regression, Theodore J. Dwyer

USF Tampa Graduate Theses and Dissertations

There is a great deal of concern regarding teacher impacts on student achievement being used as a substantial portion of a teacher’s performance evaluation. This study investigated the degree of concordance and discordance between mathematics teacher ranking using value tables and covariate regression, which have both been used as measures for teacher effectiveness. The researcher examined teacher rankings, before and after the state recommended classification, using correlational techniques, comparison matrices, and visual examination for value-added scores derived from the value table versus the covariate regression approach. Examination demonstrated strong correlations between the initial rankings (r = .77 to .98) …

Selective Enhancement Of Macropinocytosis For The Treatment Of Non-Small Cell Lung Cancer, Raul Iglesias

USF Tampa Graduate Theses and Dissertations

Over the past few years, researchers have focused their attention on the development of targeted cancer therapies to minimize the side effects associated with non-targeted treatments such as chemotherapy. Specifically, these approaches have focused on blocking growth factor receptors (GFR) that are overexpressed in cancer cells. In this thesis, we also focus on targeting overexpressed GFR; however, instead of blocking the GFR, our novel approach aims at using them to selectively enhance the endocytotic process of macropinocytosis to deliver peptides that either disrupts the mitochondria or inhibits glycolysis.

Herein, we show the selective enhancement of macropinocytosis by the fusion protein …

The Path To Violent Behavior: The Harmful Aftermath Of Childhood Trauma, Nicholas Michael Perez

USF Tampa Graduate Theses and Dissertations

Adverse childhood experiences can lead to a number of harmful outcomes throughout an individual’s life, ranging from medical problems to criminal behavior. These traumatic experiences, comprised of different forms of maltreatment and dysfunctional household environments, can affect the development of a child in a variety of different ways. The multitude of developmental changes can produce compounding harmful effects on the child’s life and lead to acutely maladaptive outcomes. Under the perspective of developmental psychopathology, the ever-changing biological, psychological, and social dynamics of children who experience trauma can contribute to deficiencies in all aspects of their subsequent development. Each of these …

Incongruous Conceptions: Owen Jones’S Plans, Elevations, Sections And Details Of The Alhambra And British Views Of Spain, Andrea Marie Johnson

USF Tampa Graduate Theses and Dissertations

This thesis analyzes Plans, Elevations, Sections, and Details of the Alhambra (1836-1842) by British Architect Owen Jones in relation to British conceptions of Spain in the nineteenth century. Although modern scholars often view Jones’s work as an accurate visual account of the Alhambra, I argue that his work is not only interested in accuracy, but it is also a re-presentation of the fourteen-century monument based on Jones’s ideologies and creative faculties. Instead of viewing the Alhambra through a culturally sensitive, historical lens, Jones treated it as an Imaginary Geography, as Edward Said called it, through which he could promote his …

Science, Policy, And Decision Making: A Case Study Of Deliberative Rhetoric And Policymaking For Coastal Adaptation In Southeast Florida, Karen Patricia Langbehn

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to observe and analyze the process of regional climate adaptation planning and the role of stakeholder deliberation in decision making about adaptation actions. It employed a case study approach based on one of three total study sites of an international, multidisciplinary grant titled, “METROPOLE: An Integrated Framework to Analyze Local Decision Making and Adaptive Capacity to Large-Scale Environmental Change”. The purpose of the case study of this project was to analyze stakeholder deliberation at two workshops at the grant’s Broward County, Florida site regarding two adaptation options: elevation/floodproofing and voluntary buyouts. Analyzing stakeholder deliberation …

Enhancement Of Supercapacitor Energy Storage By Leakage Reduction And Electrode Modification, Tete Tevi

USF Tampa Graduate Theses and Dissertations

Supercapacitors have emerged in recent years as a promising energy storage technology. The main mechanism of energy storage is based on electrostatic separation of charges in a region at the electrode-electrolyte interface called double layer. Various electrode materials including carbon and conducting polymers have been used in supercapacitors. Also, supercapacitors offer high life cycle and high power density among electrochemical energy storage devices. Despite their interesting features, supercapacitors present some disadvantages that limit their competitivity with other storage devices in some applications. One of those drawbacks is high self-discharge or leakage. The leakage occurs when electrons cross the double layer …

Chemical Investigation Of Antarctic Marine Organisms & Their Role In Modern Drug Discovery, Jacqueline Lee Fries

USF Tampa Graduate Theses and Dissertations

The chemicals produced by biological systems, whether proteins, peptides, or terpenes, will always provide an intriguing topic for researchers. Invisibly controlling every aspect of nature, these molecules are responsible for life, evolution, and death. Specifically, here is described the secondary metabolites produced by Antarctic marine organisms as well as others, and how they are used to defend or attract other animals while potentially providing health benefits to mankind. This is done through collection, extraction, and separation of individual specimens. The respective mixtures of compounds after isolation are then analyzed via spectroscopic methods such as nuclear magnetic resonance spectroscopy, mass spectrometry, …

Design, Synthesis And Screening Of Peptidomimetics For Anticancer And Antiviral Drug Candidates, Yi Liang

USF Tampa Graduate Theses and Dissertations

The high demand of novel peptide and peptidomimetics based on the amount of genomic and proteomic data need be matched by synthesis and screening. The design and synthesis of peptide and peptidomimetics are so important because the peptide and protein-protein interaction play a key role in molecule recognition and signaling. The modified peptides have better stability and pharmacokinetic properties which may be guided by rational design and molecular modeling. Now many organic and medicinal chemists have chosen peptide and peptidomimetics as potential drug candidates for many targets.

In this dissertation, research efforts in design and synthesis of cyclic peptides with …

An Evaluation Of The Effectiveness Of A Social Skills Application For Children Who Are Homeless, Emily Baton

USF Tampa Graduate Theses and Dissertations

Researchers have found children who are homeless are twice as likely to develop learning disabilities when compared with non-homeless children and three times as likely to develop emotional and behavioral problems (Bessuk et al., 2014). Additionally, homeless children are more likely to have deficits in regards to social skills (DiBiase & Waddell, 1995; National Child Traumatic Stress Network Homelessness and Extreme Poverty Working Group, 2005), however no known research has specifically explored increasing social skill deficits among homeless children. The purpose of the current research was to a) extend the research on using technology to teach social skills to homeless …

Modeling Food Security, Energy, And Climate And Cultural Impacts Of A Process: The Case Study Of Shea Butter In Sub-Saharan Africa, Colleen Claire Naughton

USF Tampa Graduate Theses and Dissertations

Millions of people in the world, particularly women and people in sub-Saharan Africa, suffer from hunger and poverty. Three of the major 2015-2030 United Nation’s Sustainable Development Goals (SDGs) aim to eliminate hunger through food security and sustainable agriculture, eradicate poverty, and achieve gender equality through women’s empowerment. Shea trees and their associated fruit and butter can play a major role in each of these three SDGs for women and their families throughout sub-Saharan Africa. Shea trees are located over a wide expanse stretching more than 5,000 kilometers across over eighteen countries in sub-Saharan Africa. These trees produce fruit that …

The Ecological Succession Of Mosquitoes Inhabiting Waste Tires In A Subtropical Swamp And Upland Forest In Central West Florida, Emily Thuong Nguyen Dinh

USF Tampa Graduate Theses and Dissertations

Literature has not yet seen a contribution involving the description of successional patterns of mosquitoes (Diptera: Culicidae) inhabiting discarded automobile tires in sylvan areas nor an investigation into the macro- and micro-environmental factors that may influence the seasonal shifts in species composition and abundance in that respective habitat. Waste tires in undeveloped forests are a hazard to human and animal health because they can support a population of vector mosquitoes. Locating productive waste tire mosquito habitats is problematic in wooded areas but is crucial for diminishing pathogen transfer in areas where humans have regular access to forests because of possible …

Population Dynamics And Vulnerability Reduction: The Role Of Non-Profit Organizations Following The 2011 Earthquake In Christchurch, New Zealand, Nicole Suzanne Hutton

USF Tampa Graduate Theses and Dissertations

With the adoption of neo-liberal policies and the decline in social welfare, non-profit organizations have been increasingly integrated into public service provision. Such changes raise questions regarding formal policies and access for marginalized populations, no more so than in disaster settings as formal disaster management of sexual health services are still vague. This study identifies the role of non-profit organizations in providing public health and social services through the lens of sexual health commitments following the September 2010 Darfield Earthquake and subsequent major aftershock during February 2011 in Christchurch, New Zealand. The primary goals of this study were three fold, …

Antigen Specific Induced T Regulatory Cellular Therapy For Graft-Versus-Host Disease Following Allogeneic Bone Marrow Transplantation, Jessica Lauren Heinrichs

USF Tampa Graduate Theses and Dissertations

Allogeneic hematopoietic stem cell transplantation (allo-HCT) has been a successful cellular therapy for patients suffering from hematological malignancies for many decades; however, the beneficial effects of graft-versus-leukemia (GVL) are classically offset by graft-versus-host disease (GVHD). GVHD occurs when major and/or minor human leukocyte antigen (HLA) mismatches between donor and recipient cause rapid expansion and activation of donor effector T cells (Teffs) resulting in end organ damage to the recipient’s epithelial tissues. Given the lymphoproliferative nature of this disease, the standard treatment option is broad immunosuppression, which can result in primary disease relapse, steroid refractory GVHD, and/or opportunistic infection. A more …

Dialectical Behavior Therapy In College Counseling Centers: Practical Applications And Theoretical Considerations, Carla Chugani

USF Tampa Graduate Theses and Dissertations

Authors over the last two decades have discussed the myriad of challenges present in managing college students with severe mental health disorders. During the same time period, Marsha Linehan developed dialectical behavior therapy (DBT) as an empirically sound intervention for individuals with suicidal and self-injurious behaviors and this treatment grew to be an evidence-based practice for a range of challenging clinical issues. I argue that one solution to continued increases in college students who present for treatment to their college counseling centers with difficult-to-treat mental health issues, including but not limited to, borderline personality disorder (BPD), is to implement DBT …

A Depiction Of Women In Tennessee With Low Literacy Skills And Their Access To Higher Education And Employment, Rebecca Puig

USF Tampa Graduate Theses and Dissertations

This phase one study was conducted using qualitative research methods in order to describe to policymakers and local literacy program experts more completely the current challenges and needs some adult women in Tennessee with low-literacy skills face when pursing higher education or a professional career. In turn, such information can assist them in better identifying appropriate resources and interventions to serve these women.

Data were collected through a cross-case analysis of two individual case studies and five interviews with three adult learners and two literacy program experts. Artifacts (e.g., flyers) were also collected, but provided no substantial contribution to the …

Synthesis Of Agents For The Treatment And Analysis Of Tropical Diseases, Jeanine Yacoub

USF Tampa Graduate Theses and Dissertations

Toxoplasmosis is an opportunistic disease caused by the protozoan parasite Toxoplasma gondii. The parasite is usually staved off by a healthy immune system and remains dormant in the body. In immunocompromised patients, the parasite can become active and spread throughout the body causing symptoms such as encephalitis, cognitive disorders, seizures, and death. Combination drug therapy is the usual treatment for toxoplasmosis; however, patients suffer from problems of intolerance, allergic reactions, and cytotoxicity. In an effort to identify new drug targets for toxoplasmosis, a series of compounds have been synthesized that can be used as tools to probe the unique …

Resource Recovery Through Halophyte Production In Marine Aquaponics: An Evaluation Of The Nutrient Cycling And The Environmental Sustainability Of Aquaponics, Suzanne Boxman

USF Tampa Graduate Theses and Dissertations

Aquaculture, the farming of aquatic animals and plants, is an important component of global food production, which supplies a nutritious protein source for millions of people. Interest in improving the sustainability of aquaculture has led to the development of aquaponics in which fish production is combined with plant production to create zero-discharge systems. A need for more fundamental science and engineering research on marine aquaculture and growing interest in production of halophytes motivated this novel research on marine aquaponics. One objective was to evaluate the growth and nutrient removal capacity of halophytes in marine aquaponics. Bench-scale studies were conducted to …

Multidimensional Waveform Shaping In Multicarrier Systems, Ertugrul Guvenkaya

USF Tampa Graduate Theses and Dissertations

Constantly increasing demand for wireless communications in various applications has always led to new ways of modulating the radio frequency (RF) carrier signal by advancing waveform structure throughout generations. Although communication data rates are limited by the theoretical capacity, specific signaling designs for the signal that experiences natural and artificial effects in the transmission medium such as multipath fading channel, hardware impairments and multiuser environment promised better solutions in providing improved wireless access to various type of users and networks. Besides communication capacity, broadcasting nature of radio signals poses the information security as another main concern in wireless communications. In …

The Relationship Between Social Networks, Exchange And Kids’ Food In Children’S Peer Culture, Stephanie Tillman Melton

USF Tampa Graduate Theses and Dissertations

This study investigates children’s peer culture, social networks and the role that kids’ food plays in peer exchanges during middle childhood. During this stage children develop social competencies as they join peer groups with other children and become socialized into children’s peer culture. In order to immerse myself within children’s culture, I conducted ethnographic fieldwork at two afterschool programs providing care for elementary school children. I investigated friendships, social networks and exchanges among third through fifth grade children at the programs. The study included participant observation and participatory group interviews with a sample of the children at both sites. The …

Risk And Resiliency Factors At School Entry: Relations To Academic And Behavioral Outcomes In Early Adolescence, Krystle Kuzia Preece

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to examine how early academic and behavioral variables in kindergarten (i.e., academic performance, first time kindergarten status, early school-related emotional adaptation, prosocial behavior, externalizing behaviors, and internalizing behaviors) were related to academic and behavioral outcomes in eighth grade (i.e., academic performance, retention, suspension, externalizing behaviors, internalizing behaviors, and having an educational/mental health diagnosis). Archival data from the Early Childhood Longitudinal Study—Kindergarten Cohort (ECLS-K) database that included approximately 5,700 participants from across the U.S., were examined to answer three research questions: (1) How are early academic and behavioral variables related to each other among youth …

Funeral Service Employers' Perceptions Of Body Art And Hireability, Tanya E. Scotece

USF Tampa Graduate Theses and Dissertations

The purpose of this research was to determine whether there were biases among funeral home and cemetery professionals with regards to hiring mortuary science graduates with tattoos.

An anonymous survey including a photograph of either a male or female with various degrees of visible body art, ranging from none to extreme, was sent to 1484 members of the International Cemetery, Cremation and Funeral Association. The primary methodology used to determine whether biases existed regarding visible body art were a semantic differential and a hireability scale. The survey was designed to gather information related to the following three research questions:

1. …

Optofluidic Spectroscopy Platform For Detection Of Hemolysis, Edikan Archibong

USF Tampa Graduate Theses and Dissertations

In the United States alone, hundreds of millions of blood tests are performed annually, and a significant number of those tests are compromised due to hemolysis: e.g., 31% compromised in emergency rooms (inpatient) and 10% at blood banks, clinics, and other outpatient venues. Currently there is no way to reliably detect hemolysis without plasma separation. As a result, significant delays ensue, potentially negatively affecting patient diagnosis and treatment. In addition to in vitro hemolysis, which compromises the quality of blood tests, hemolysis can also occur in vivo. The in vivo occurrence of hemolysis is an indication of life-threatening complications. …

Neurophysiological Activity Related To Speech Production: An Erp Investigation, Adithya Chandregowda

USF Tampa Graduate Theses and Dissertations

The event related potential (ERP) technique is enjoying widespread application in neurophysiological research due to its fine temporal resolution. Of relevance to this study are ERPs related to voluntary movements. The precision with which movement related processes could be recorded using the ERP technique was demonstrated by Gilden, Vaughan and Costa (1966) and Kutas and Donchin (1974, 1977, and 1980) who found that the readiness potential (RP) immediately preceding hand movement was larger over the hemisphere contralateral to the responding hand. Given that left hemisphere controls right hand movements and vice versa, their findings confirmed that the lateralized readiness potential …

The Relationship Of Childhood Stress To Adult Health And Mortality Among Individuals From Two U.S. Documented Skeletal Collections, Late 19Th To Early 20Th Centuries, Rhonda Coolidge

USF Tampa Graduate Theses and Dissertations

Although the association between social inequality and poor adult health is well established, the mechanisms by which inequality is translated into poor adult health are less clear. Increasingly, evidence suggests that many adult health problems and health disparities have their origins in early life; the developmental origins of health and disease (DOHaD) hypothesis provides an explanatory mechanism linking adverse early life conditions with permanent structural or functional changes that increase the risk for disease. This hypothesis is consistent with bioarchaeological research noting reduced lifespan among individuals exhibiting signs of childhood stress.

The principal aim of this dissertation is to contribute …