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Coloring In The Margins: Understanding The Experiences Of Racial/Ethnic And Sexual/Gender Minority Undergraduates In Stem, Jonathan D. Ware

USF Tampa Graduate Theses and Dissertations

Extensive research has documented the experiences and outcomes of women and certain underrepresented racial/ethnic minority groups in STEM educational programs. This paper contributes to current conversations by focusing on the experiences of individuals that identify as both a racial/ethnic and sexual/gender minority (SGM). This paper has two major objectives in mind: (1) provide one of the first empirical studies examining the experiences of SGM students in STEM and (2) interrogate the intersection of racial/ethnic identity and sexual/gender identity within the context of these programs. In order to provide a more robust understanding in these areas, this paper is guided by …

Design, Synthesis, Application Of Biodegradable Polymers, Mussie Gide

USF Tampa Graduate Theses and Dissertations

Bacterial infections have posed a serious threat to the public health due to the significant rise of the infections caused by antibiotic-resistant bacteria. There has been considerable interest in the development of antimicrobial agents which mimic the natural HDPs, and among them biodegradable polymers are newly discovered drug candidates with ease of synthesis and low manufacture cost compared to synthetic host defense peptides. Herein, we present the synthesis of biocompatible and biodegradable polymers including polycarbonate polymers, unimolecular micelle hyperbranched polymers and dendrimers that mimic the antibacterial mechanism of HDPs by compromising bacterial cell membranes. The developed amphiphilic polycarbonates are highly …

Food Insecurity And Age Of Menarche: Using A Biocultural Approach And Life History Theory To Assess Risks Of Food Insecurity Among Girls In Tampa Bay, Fl, Mecca Burris

USF Tampa Graduate Theses and Dissertations

Using life-history theory within a biocultural perspective, this research explores whether household food insecurity correlates with early or delayed menarche among adolescent females in Tampa Bay, Florida. Early onset of puberty and menstruation is connected with numerous health consequences including growth stunting, obesity, type-2 diabetes, adult-onset asthma, reproductive cancers, increased risk for depression, behavioral problems, and early sexual activity which increases the risk for STIs and ovarian cancer. Early menarche also seems to disproportionally impact disadvantaged and minority groups. While there are many known factors that influence age at menarche (e.g.: genetics, diet), little is understood regarding the effect of …

Transitions To Preschool Special Education: The Relationship Of Child, Family, And Early Intervention Characteristics, Tara B. Delach

USF Tampa Graduate Theses and Dissertations

Infants and toddlers with developmental disabilities and certain medical conditions are at risk for a variety of adverse outcomes in childhood as well as into adulthood. Early identification and early intervention are essential for improving the trajectories and outcomes of these children. The Individuals with Disabilities Education Act (IDEA) is a federal law that affords protections to children with disabilities and those at risk for developmental delays. IDEA provides guidance and regulations to early intervention programs, schools, and states for identifying and delivering intervention services to children ages birth through 21 years. Although the provision of early intervention services are …

An Examination Of Image Repair Theory And Bp’S Response To The Deepwater Horizon Oil Spill, William Anthony Korte Jr.

USF Tampa Graduate Theses and Dissertations

The 2010 explosion of BP’s Deepwater Horizon oil rig was an environmental disaster unparalleled in United States history. Because of this, there has been a great deal of research studies regarding the matter.

The purpose of this study was to determine what inshore fishing guides in the Tampa Bay Area feel should be a response to future oil spills using Image Repair Theory, as well as how this important group of stakeholders felt about the image repair responses employed by BP in the wake of the spill.

In depth interviews were used to gather data and answer the pertinent research …

Reproducing Intersex Trouble: An Analysis Of The M.C. Case In The Media, Jamie M. Lane

USF Tampa Graduate Theses and Dissertations

How do members of the media represent intersex people? Do the voices of intersex activists find their way into mainstream media representations, or are they ignored? What types of discourses are produced by the presence (or lack thereof) of activist voices in news articles? The goal of this thesis is to interrogate the discourse surrounding intersex, or individuals who fall outside of the typical male/female binary for sex classification, and intersex activism in the media. The legal case M.C. vs. Aaronson, settled in 2017, was one of the first legal cases in the United States involving an intersex person. This …

Grooming Behaviors Of, Lauren N. Williams

USF Tampa Graduate Theses and Dissertations

The giant freshwater shrimp, Macrobrachium rosenbergii is a large species of prawn grown extensively in aquaculture settings. A social hierarchy exists within the males of this species, representing three distinct male morphotypes. These male morphotypes differ in their behavior, physiology, and morphology and include the largest blue-clawed males (BC males), moderately- sized orange-clawed males (OC males), and the undifferentiated small-clawed males (SM males). All individuals of this species perform grooming behaviors to rid themselves of body fouling which can impede important functions such as movement, respiration, chemoreception, and reproduction. Grooming behaviors in crustaceans often utilize specialized structures called setae, which …

Reconstructing Historical Hurricane Tracks In The Atlantic Basin: Three Case Studies From The 1840s, Emily L. Cerrito

USF Tampa Graduate Theses and Dissertations

Analyzing past tropical cyclone activity enables researchers to recognize patterns of hurricane variability, estimate hurricane return periods, and assess local risk to future storms. This paleotempestology study used original primary data to make the historical record as comprehensive and accurate as possible for three major hurricanes: October 1844, October 1846, and September 1848. This thesis presents the reconstructed storm tracks, assesses the societal impacts, and evaluates the storm intensity of these three major hurricanes for the eastern U.S. and Cuba. The data utilized in this study include ship logbooks, newspapers, diaries, and instrumental meteorological records. A geographic information system (GIS) …

Porter’S Bar: A Coastal Middle Woodland Burial Mound And Shell Midden In Northwest Florida, Kerri Knigge

USF Tampa Graduate Theses and Dissertations

This thesis should serve as a comprehensive site report for both Porter’s Bar (8Fr1) and Green Point (8Fr11) mounds in northwest Florida. These prehistoric burial mounds and their associated village shell midden are determined to have been constructed during two different time periods, Middle Woodland and Early Woodland, respectively. This is the first time that all materials and data have been described and compiled for both sites, despite the fact that they were both originally recorded over a century ago and described differently later by multiple researchers.

The mounds served as an important ceremonial center along Apalachicola Bay some 1500 …

Ecosystem Function And Phenotypic Variation In Spartina Alterniflora Salt Marshes, Sandra E. Voors

USF Tampa Graduate Theses and Dissertations

Biodiversity is important to ecosystem function at many scales, and variation functional traits within a species can potentially influence ecosystem functioning by altering nutrient cycling dynamics. High population extinction rates are resulting in a rapid loss of within-species biodiversity, so there is a need to better understand the importance of intraspecific variation to ecosystem-level processes. Tidal salt marshes are ideal ecosystems for investigating intraspecific variation in plant-nutrient relationships because they are dominated by a monoculture of the foundation species Spartina alterniflora, with distinct phenotypes that correspond to environmental gradients across the marsh. We conducted a field survey of existing …

Comparison Of Functional Porous Organic Polymers (Pops) And Natural Material Zeolite For Nitrogen Removal And Recovery From Synthetic Urine, Yan Zhang

USF Tampa Graduate Theses and Dissertations

Urine comprises around 1% of domestic sewage volume but holds 80% of total nitrogen. Source separation is a sustainable way to wastewater management than traditional way due to low energy cost and preventing certain pollutants into wastewater treatment plants. Currently, removing and recovering nitrogen from source-separated urine has attracted more and more interests. Of them, ion exchange was used for removal and recovery of nitrogen in the form of ammonia from synthetic urine for potential application as a fertilizer in agriculture. No previous research studies were conducted to investigate the removal and recovery of nitrogen from hydrolyzed urine by ion …

Conversion Of Biomass To Liquid Hydrocarbon Fuels Via Anaerobic Digestion: A Feasibility Study, Ahmad Naqi

USF Tampa Graduate Theses and Dissertations

The use of biomass as a potential feedstock for the production of liquid hydrocarbon fuels has been under investigation in the last few decades. This paper discusses a preliminary design and a feasibility study of producing liquid hydrocarbon fuels from biomass through a combined biochemical and thermochemical route. The process involves anaerobic digestion (AD) of the biodegradable portion of the biomass to produce methane rich gas. The methane rich biogas stream is purified by removing contaminants and upgraded to liquid hydrocarbon fuel in a gas to liquid facility (GTL) via thermochemical conversion route. The biogas conversion involves two major steps: …

Sublethal Effects Of Crude Oil And Chemical Dispersant On The Eastern Oyster (Crassostrea Virginica) At Multiple Life History Stages, Sara Marie Garcia

USF Tampa Graduate Theses and Dissertations

Oil spills in the marine environment can threaten vulnerable ecosystems that support ecologically and economically significant organisms, such as the eastern oyster (Crassostrea virginica), in coastal habitats. The use of chemical dispersant (Corexit 9500) was applied as a cleanup effort in response to the Deepwater Horizon blowout to minimize crude oil slicks, but also resulted in increased concentrations of polycyclic aromatic hydrocarbons in the water column. The effects of increased soluble fractions of crude oil and dispersant components may be harmful to marine organisms. This study aimed to investigate possible sublethal impacts to the eastern oyster at multiple life history …

Combining Thermo-Plasmonics With Microfluidics For Biological Applications, Sharad Ambardar

USF Tampa Graduate Theses and Dissertations

In this project we, for the first time, integrated microfluidics with thermo-plasmonics. While microfluidics is a popular platform allowing experiments with small volumes of fluid, thermo-plasmonics can be used for powerful particle manipulation including capturing, mixing, filtering and projection. Combined, these two techniques give us an opportunity to work with numerous complex fluids containing particles, cells, and micro-beads. Here we designed, developed and tested several devices demonstrating various aspects of this exciting hybrid technology. This required use of soft lithography, metal deposition, 3D printing, oxygen plasma treatment and several other surface modification techniques. Additional challenges were in the fabrication of …

Parallelizing Tabu Search Based Optimization Algorithm On Gpus, Vinaya Malleypally

USF Tampa Graduate Theses and Dissertations

There are many combinatorial optimization problems such as traveling salesman problem, quadratic-assignment problem, flow shop scheduling, that are computationally intractable. Tabu search based simulated annealing is a stochastic search algorithm that is widely used to solve combinatorial optimization problems. Due to excessive run time, there is a strong demand for a parallel version that can be applied to any problem with minimal modifications. Existing advanced and/or parallel versions of tabu search algorithms are specific to the problem at hand. This leads to a drawback of optimization only for that particular problem. In this work, we propose a parallel version of …

The Promised Body: Diet Culture, The Fat Subject, And Ambivalence As Resistance, Jennifer Dolan

USF Tampa Graduate Theses and Dissertations

Since the turn of the twentieth century, middle-class Americans have considered the thin body--ostensibly the result of self-control and self-discipline--a moral imperative and a symbol of good citizenship. In this thesis, I provide a critical perspective on fat studies by examining the ways in which the field authorizes itself in a society that deems the fat body unhealthy, costly, and immoral. As one potential solution to fat-hatred, fat studies proposes fat-positivity, but I argue that fat-positivity requires an extraordinary act of imagination in which the fat person overcomes what I term the ideology of thinness and subsequently feels good about …

Flames And Frogs – The Impact Of Environmental Disturbances On Host-Parasite Dynamics, Nicole Ortega

USF Tampa Graduate Theses and Dissertations

The successful completion of this work is dedicated first to my grandparents for having always shown their unwavering love and encouragement in my journeys (most of which they kindly and politely only pretended to understand) and for having also served as life-long role models who upheld an unparalleled work ethic. To many whom I consider to be my chosen family, especially Ann Williams and Brittany Sears, who kept me laughing, but more importantly, kept my crazy train from derailing during these tumultuous years. To Wayne Price and Tom Jackman, who fostered the success of my career and are the epitome …

Effectiveness Of Biocide Substitution And Management Plan Implementation For The Control Of, Adelmarie Bones

USF Tampa Graduate Theses and Dissertations

After the notorious outbreak and discovery of Legionella bacteria in 1976, the waterborne pathogen was added to the list of disease-causing agents associated with the built environment. Legionella pneumophila was discovered when it was identified as the agent that caused 34 deaths and an outbreak of pneumonia-like symptoms in several attendees of the 1976 American Legion Convention held in Philadelphia (OSHA, 2017).

Recently published data from the year 2015 reported more than 6,000 Legionnaires’ cases identified in the United States (CDC, 2016). This is a concerning number given that one in every ten infected persons will die of the disease. …

Angiostrongylus Cantonensis: Epidemiologic Review, Location-Specific Habitat Modelling, And Surveillance In Hillsborough County, Florida, U.S.A., Brad Christian Perich

USF Tampa Graduate Theses and Dissertations

Angiostrongylus cantonensis is a parasitic nematode endemic to tropical and subtropical regions and is the leading cause of human eosinophilic meningitis. The parasite is commonly known as rat lungworm because the primary host in its lifecycle is the rat. A clinical overview of rat lungworm infection is presented, followed by a literature review of rat lungworm epidemiology, risk factors, and surveillance projects. Data collected from previous snail surveys in Florida was considered alongside elevation, population per square kilometer, median household income by zip code territory, and normalized difference vegetation index specific to the geographic coordinates from which the snail samples …

Prevention Of Post Intensive Care Syndrome-Family With Sensation Awareness Focused Training Intervention: A Randomized Controlled Trial Pilot Study, Paula L. Cairns

USF Tampa Graduate Theses and Dissertations

Post Intensive Care Syndrome-Family (PICS-F) refers to acute and chronic psychological effects of critical illness on family members of patients in intensive care units (ICU). Evidence about the increase and persistence of PICS-F warrants the need for prevention interventions. This study evaluated the feasibility of providing Sensation Awareness Focused Training (SĀF-T) during the ICU stay for spouses of mechanically ventilated patients. Methods: A randomized controlled trial of SĀF-T versus a control group was conducted (n=10) to assess safety, acceptability, feasibility, and effect size of the intervention on PICS-F symptoms. Symptoms assessed as outcome measures included stress, anxiety, depression, posttraumatic stress …

"Ain't I A Woman?": Black Women Negotiate And Resist Systemic Oppression In Undergraduate Engineering And Mathematics Disciplines, Jessica Alyce Wilson

USF Tampa Graduate Theses and Dissertations

In this inquiry I used Black Feminist Thought as the interpretive lens to investigate the characterizations and experiences of high achieving Black women undergraduate engineering and mathematics majors at a predominantly white institution. The qualitative inquiry considered intersecting oppressions to evaluate the experiences of this population. In particular, Black women operate in the intersection of race and gender, thus for a thorough analysis of their engineering and mathematics experiences to occur, the historical context of the United States and its oppressive structures must be considered. Stereotypes and systemic oppression follow this socially constructed identity as the participants enter the fields …

An Examination Of Factors That Affect The Utilization Of Mental Health Services By Adolescents, Nichole A. Murray

USF Tampa Graduate Theses and Dissertations

Mental disorders among adolescents are on the rise and are among the most common chronic conditions, constituting a national epidemic. Prevalence rates indicate that 20–40% of the adolescent population in the U.S. suffers from emotional or behavioral difficulties significant enough to lead to functional impairment. Further, estimates suggest that more than 20% of the adolescent population has a diagnosable mental disorder, which significantly impacts their functioning substantially at school, at home and in their communities. Despite national agendas to address the mental health needs of adolescents, studies suggest that approximately 50 percent of adolescents with mental health needs do not …

Novel Role Of Histone Deacetylase 11 (Hdac11) In Regulating Normal And Malignant Hematopoiesis, Jie Chen

USF Tampa Graduate Theses and Dissertations

During hematopoiesis, multilineage progenitor cells and the precursors are committed to individual hematopoietic lineages. In normal myelopoiesis, the immature myeloid cells (IMCs) differentiate into macrophages, neutrophils or dendritic cells. However, under tumor burden, these IMCs differentiate into myeloid derived suppressor cells (MDSCs) result in an up-regulation of immune suppressive factors and pro-tumor effect. The development of normal or malignant is tightly controlled by endogenous signals such as transcription factors and epigenetic regulations. HDAC11 is the newest identified members of the histone deacetylase (HDAC) family. Previous study in our group had identified HDAC11 as a negative regulator of interleukin 10 (IL-10) …

Characterization Of The Transcriptional Elongation Factor Ell3 In B Cells And Its Role In B-Cell Lymphoma Proliferation And Survival, Lou-Ella M.M. Alexander

USF Tampa Graduate Theses and Dissertations

The studies presented in this dissertation establish the dynamics of Eleven nineteen Lysine-rich leukemia (ELL) family of elongation factors during B cell differentiation and provide a description of ELL3 function in B cells.

The transition from a mature naïve B cells into an activated B cell is dependent on a large increase in transcriptional output, which is followed by focused expression on secreted immunoglobulin upon terminal differentiation into plasma cell. While ELL family members have previously been implicated in alternative splicing at the immunoglobulin heavy chain locus in plasma cells, their presence and function prior to differentiation is currently not …

Astaxanthin Attenuates Mptp Induced Neurotoxicity And Modulates Cognitive Function In Aged Mice, Beth Grimmig

USF Tampa Graduate Theses and Dissertations

Parkinson’s disease is the second common neurodegenerative disease and is most frequently diagnosed in individuals over 60. There are no available medications that can prevent or restore the loss of neurons that correspond to motor impairments in patients. Identifying novel therapeutic compounds that are capable of slowing and reversing the extensive neurodegeneration that occurs in PD remains an important goal of the field. While basic research has identified potential therapeutic agents, studies often use young model organisms to demonstrate efficacy of the target compound. This approach ignores the impact of the aged CNS on the disease process, and likely contributes …

A High Accuracy Microwave Radiometric Thermometer To Measure Internal Body Temperature, Michael D. Grady

USF Tampa Graduate Theses and Dissertations

The Center for Disease Control and Prevention (CDC) released heat illness data which highlighted that ~29 heat stress hospitalizations and ~3 heat-related deaths occurred every day during the summer months within the US from years 2000 to 2014. Heatstroke- the most severe form of heat illness which oftentimes lead to death- has been cited to be entirely preventable if a timely intervention is introduced. This dissertation uses microwave radiometric thermometry to perform wireless non-invasive internal body temperature monitoring which can enable intervention methods that help to prevent deaths associated with heat-illness.

Overall, this dissertation develops a comprehensive closed-form analytical radiometric …

Spatial-Temporal Distribution Of Mosquito Larval Hot Spots In Papoli, Uganda: A Community-Based Approach To Mosquito Control, Ryan E. Tokarz

USF Tampa Graduate Theses and Dissertations

Mosquito species of the Anopheles gambaie complex are the predominant vectors of malaria transmission throughout sub-Saharan Africa. These mosquitoes tend to be endophilic, as well as anthropophilic, making them prime candidates for disease transmission. Within the same region, related mosquito vectors play a significant role in the transmission of additional human and zoonotic diseases. Furthermore, mosquito nuisance biting is an immense issue that cannot be ignored in terms of its impact on African communities. Depending on the respective factors involved, mosquito control programs throughout the continent have attempted to tackle these issues in a multitude of ways. This research approached …

Sleep And Alzheimer’S Disease: A Critical Examination Of The Risk That Sleep Problems Or Disorders Particularly Obstructive Sleep Apnea Pose Towards Developing Alzheimer’S Disease, Omonigho A. Michael Bubu

USF Tampa Graduate Theses and Dissertations

This dissertation is a critical examination of the relationship between sleep problems and/or disorders, particularly Obstructive Sleep Apnea (OSA) and Alzheimer Disease (AD). First, I conducted an exhaustive systematic review of existing literature, and identified gaps in research that led to specific research aims. For the first aim, I conducted the first ever-published meta-analysis examining sleep, cognitive decline and AD, providing an aggregate effect of sleep on AD. Second, focusing on OSA, I conducted a study examining OSA’s effect on longitudinal changes on AD biomarkers in cognitive normal, MCI and AD subjects, using data from the Alzheimer Disease Neuroimaging Initiative …

Imaging Wetland Hydrogeophysics: Applications Of Critical Zone Hydrogeophysics To Better Understand Hydrogeologic Conditions In Coastal And Inland Wetlands And Waters, Christine Marie Downs

USF Tampa Graduate Theses and Dissertations

This dissertation consists of three projects utilizing electric and electromagnetic (EM) methods to better understand critical-zone hydrogeologic conditions in select Florida wetlands and waters.

First, a time-lapse electrical resistivity (ER) survey was conducted in section of mangrove forest on a barrier island in southeast Florida to image changes in pore-water salinity in the root zone. ER data show the most variability in the root zone over a 24-hour period, and, generally, the ground is more resistive during the day than overnight.

Second, a suite of three-dimensional forward models, based on varying lateral boundaries and conductivities typical of a coastal wetland, …

The Spirit Of Friendship: Girlfriends In Contemporary African American Literature, Tangela La'chelle Serls

USF Tampa Graduate Theses and Dissertations

The Spirit of Friendship: Girlfriends in Contemporary African American Literature examines spiritual subjectivities that inspire girlfriends in three contemporary novels to journey towards actualization. It examines the girlfriend bond as a space where the Divine Spirit can flourish and assist girlfriends as they seek to become actualized. This project raises epistemological questions as it suggests that within the girlfriend dynamic, knowledge that is traditionally subjugated is formed and refined. Finally, girlfriend epistemology is considered in light of Black Girl Magic, a contemporary social and cultural movement among Black women.