Digital Commons Network^™

Development Of Enhanced Algae Strains And Sustainable Cultivation Processes For Production Of Algal Lipids For Biofuels And Bioproducts, Enlin Lo

USF Tampa Graduate Theses and Dissertations

The establishment of an algae industry is crucial for addressing global biofuel and bioproduct demand that meets the Sustainable Development Goals (SDG) worldwide. Photosynthetic microalgae are excellent sources for food, fiber, fuel, feed, and fertilizer, which are the 5Fs of the SDG. However, at present, algae-based materials are not cost-competitive or sufficiently sustainable. Improved productivity, lower cultivation cost, and reduced use of resources are required to transition from lab to industry, necessitating the development of superior strains that have high productivity and can tolerate environmental stress, such as temperature and salinity, so they can be cultivated at large scale outdoors …

Exploring The Structure And Activity Of Metallo-Tetracyclines, Shahedul Islam

USF Tampa Graduate Theses and Dissertations

Copper as a key component of electron transport chain of eukaryotes is an essential transition metal ion. Copper homeostasis in mammals complex and tightly regulated. Its strong reactivity together with binding with biologically important chemicals can have important repercussions in human health and overall environment. Tetracycline as one of most abundantly used antibiotic of the world has become abundant in the environment as well. Herein in this dissertation we take the journey to explore the complexation of tetracycline with metals in the environment and the intricate interaction between copper and tetracycline by investigating their oxidative behavior once they are complexed. …

Individual Differences In Response To Hostile And Benevolent Sexism In A Stem Interview Context: The Moderating Role Of Behavioral Activation, Elizabeth Kiebel

USF Tampa Graduate Theses and Dissertations

Women continue to face sexism in workplace contexts, especially those that are male dominated, such as science, technology, engineering, and mathematics (STEM). Yet, women often fail to confront the sexism they experience, despite confrontation being an effective way to cope with and prevent future harassment (Fitzgerald et al., 1995; Magley, 2002). To date, no one has assessed the potential moderating role of personality differences related to approach motivation on women’s confrontation of sexism. In this study, women were exposed to either a hostilely sexist or benevolently sexist question during a mock job interview that was purportedly being conducted as part …

Small Heat Shock Protein 22 Preserves Neuronal Function In A Murine Model Of Tauopathy, Santiago Rodriguez Ospina

USF Tampa Graduate Theses and Dissertations

Proteinopathies is a family of diseases associated with the pathological aggregation of protein. There are a multitude of proteinopathies, like tauopathy and synucleinopathy that contribute to neurodegenerative diseases like Alzheimer’s disease (AD), Creutzfeldt-Jakob, Pick’s disease, Frontotemporal dementia, and Parkinson’s disease (PD). Currently, one focus of research in the field is mitigating aggregation-prone proteins contributing to disease state. One method of targeting aggregation is the use of chaperones. Chaperones are molecular machinery that help maintain homeostasis in the cells, through various roles and mechanisms, one of those methods is to regulate protein aggregation. Chaperones can achieve this by affecting protein-protein interactions, …

Black Cemeteries Matter: The Erasure Of Historic Black Cemeteries In Polk County, Florida, Juliana C. Waters

USF Tampa Graduate Theses and Dissertations

In the past several years, the Tampa Bay area has experienced a reckoning with regard to the intentional erasure, destruction, and abandonment of historic African American cemeteries such as Zion Cemetery in Tampa or St. Matthews Baptist Church Cemetery in Clearwater. Scholars, journalists, community members, archaeologists, and others have contributed to a growing movement that aims to identify and document these sacred sites in an effort to prevent further destruction. In this vein, this project aimed to identify and record cemeteries in Polk County, examine the processes leading to the erasure of historic Black cemeteries, the history surrounding erasure on …

Defining The Role Of Oxidized Mitochondrial Dna In Myelodysplastic Syndromes, Grace Anne Ward

USF Tampa Graduate Theses and Dissertations

Myelodysplastic Syndromes (MDS) are heterogeneous bone marrow (BM) failure malignancies characterized by constitutive innate immune activation, NLRP3 inflammasome (IFM) driven pyroptotic cell death, and the induction of interferon-stimulated genes (ISG). MDS often diagnostically resembles other hematologic disorders, as such, additional tools are needed for the discrimination from overlapping disorders. We observed that oxidized mitochondrial DNA (ox-mtDNA) is released upon cytolysis. We hypothesize that levels of ox-mtDNA are high in MDS, allowing us to use it as a diagnostic biomarker; and that cell free ox-mtDNA is contributing to feedforward BM failure.

ROC/AUC analysis demonstrated that ox-mtDNA is a sensitive and specific …

Oral Narrative Interventions Implemented By Teachers, Speech-Language Pathologists, And Parents, Megan S. Kirby

USF Tampa Graduate Theses and Dissertations

Children’s oral language skills in preschool through early elementary grades can predict reading, writing, and social outcomes ten years into the future. Oral narrative language, which includes storytelling, is a long-established cultural practice in communities around the world. Narratives are the monologic re/telling of a real of fictitious event and people have used them for centuries to entertain, make sense of current and past events, and provide instruction. Oral storytelling does not require physical materials and can be tailored to the cultural and linguistic values of the community in which they are used. Thus, the portability, utility, and ubiquitous nature …

Medication-Assisted Treatment Versus 12-Step Group Therapy: A Comparative Analysis Of Adherence And Abstinence In Patients With Opioid Use Disorder, Derrick C. Glymph

USF Tampa Graduate Theses and Dissertations

The purpose of this dissertation was to do a comparative analysis of the effects of medication-assisted treatment (MAT) and 12-step group therapy on adherence and abstinence in adult patients with opioid use disorder (OUD). The specific aims were (1) to compare treatment adherence and illicit opioid abstinence of adult OUD patients enrolled in MAT and adult OUD patients enrolled in 12-step group therapy at three months and six months after initiation of treatment, and (2) to compare treatment adherence and illicit opioid abstinence of adult OUD patients enrolled in MAT to the treatment adherence and illicit opioid abstinence of adult …

Breast Health Esteem To Motivate Breast Health Behavioral Intentions: An Application Of The Terror Management Health Model, Emily P. Courtney

USF Tampa Graduate Theses and Dissertations

Breast cancer is a pervasive disease affecting millions of people, and a family history of the disease can put individuals at a significantly higher risk of developing breast cancer over the course of one’s lifetime. In turn, women with a family history often perceive themselves as more susceptible to breast cancer. Further, women who have lost family members to breast cancer likely associate the disease itself with death to a greater extent. In addition to this increased risk perception, women with a family history might intertwine breast health with feelings of esteem. It follows that those feelings of esteem should …

First-Principles-Based Modeling Of Energy Converting Properties Of Conventional And Emerging Ferroelectrics, Maggie Kingsland

USF Tampa Graduate Theses and Dissertations

Ferroelectric materials are a type of multifunctional material that exhibit spontaneous polarization reversable by the application of an electric field. They are used in many technologies such as ferroelectric RAM (FeRAM), piezoelectric devices, RFID chips, and capacitors. However, the most commonly used ferroelectrics are often made with rare, expensive elements and are not environmentally friendly. For example, many prototypical ferroelectrics contain elements such as lead, zirconium, and titanium. As technology grows more advanced, there is a need to discover or manufacture cheaper ferroelectrics and to make them less impactful on human health and the earth as a whole. We set …

Comparing Participants In Discipline And Non-Discipline Specific First-Year Seminars: A Study On Student Characteristics, Expectations, And Changes In Major, Caroline Kaufmann Twachtman

USF Tampa Graduate Theses and Dissertations

First-year seminar (FYS) courses tend to focus on preparing students for successful academic and social integration into the college environment. Many of the studies on FYS courses focus on measuring outcomes such as college grades, retention, and graduation rates. While there is notable documentation of several different types of FYS courses, relatively few studies compare the different types of FYS courses. What, if any, differences might there be in the profiles of students who take either type of course? Is there a certain type of student that enrolls in the discipline-specific course, or a certain type of student that enrolls …

A Mixed Methods Analysis Of Maternal-Infant Feeding Interactions Between Dyads With Opioid Exposure, Kailey T. Rinaldi

USF Tampa Graduate Theses and Dissertations

Infants diagnosed with neonatal opioid withdrawal syndrome (NOWS) exhibit neurobehavioral dysregulation that may make them challenging to feed, potentially impeding positive early maternal-infant interactions. The goal of this study was to investigate dyadic behavior during the maternal-infant feeding interaction, specifically infant dysregulation and maternal sensitivity, between dyads with opioid exposure in the neonatal intensive care unit (NICU). This was a secondary data analysis using a mixed-methods design to analyze videorecorded feeding interactions of mothers with opioid use disorder (OUD) and their infants with NOWS. An integrative literature review investigating maternal sensitivity in mothers with OUD was conducted. Verbalizations expressed by …

Geothermal Development In Kenya: Gender Based Socio-Cultural And Socio-Economic Implications, Faye N. Ricker

USF Tampa Graduate Theses and Dissertations

This dissertation is an ethnographic case study that analyzes the gendered socio-cultural and socio-economic implications for a community that was displaced in order to develop a geothermal energy system in Kenya. The implications are rendered particularly interesting because the displaced community is also one of the communities served by the geothermal power grid. The analysis employs a composite framework of Feminist Political Ecology and the Political Ecology of Climate Change Mitigation. This work explores gendered perceptions and control of energy, livelihood activities, place attachment, and the cultural/spiritual significance of geothermal energy.

Geothermal energy is a potentially promising source of low-carbon …

Phenotypic Variability In Ipsc-Induced Cardiomyocytes And Cardiac Fibroblasts Carrying Diverse Lmna Mutations, Jiajia Yang

USF Tampa Graduate Theses and Dissertations

Mutations in the LMNA gene (encoding lamin A/C) are the second most common cause of familial arrhythmogenic cardiomyopathy. Diverse LMNA variants in cardiomyocytes have been associated with cardiac phenotypes. Moreover, cardiac fibroblasts make up a large fraction of the myocardium's non-myocyte component, intrinsically linked to extracellular matrix synthesis and turnover as well as secreting large amounts of bioactive metabolites. However, our understanding of how different mutation sites and the non-myocyte niche mediate cardiomyocyte function is limited. To fill this gap, in this thesis I investigated the hypothesis that variable LMNA mutations have significant effects on the genetic, structure and electrophysiological …

Quantifying Functional Performance Of Manual Force Perception And Dynamic Force Control, Benjamin Rigsby

USF Tampa Graduate Theses and Dissertations

This dissertation furthers our understanding of how we (humans) sense and interact withforces, humans, and robots in three distinct cases, which affect robotics and rehabilitation. Chapter 2 examines physical therapists’ (PTs’) consistency when applying assistance forces during rehabilitation. Chapter 3 explores how control performance of an unstable system is affected by the system’s degrees of freedom (DoFs). Chapter 4 investigates the effects of the task speed and direction of perturbing forces on a dynamic task where position is controlled through self-generated forces.

Chapter 2 quantifies the consistency of forces that PTs apply during therapy by using a robotic device. The …

Fiber-Based Electrical Energy Storage And Harvesting Devices For Wearable Electronics, Tareq Kareri

USF Tampa Graduate Theses and Dissertations

Over the past few years, smart textiles and wearable technologies have received tremendous attention due to their functionalities and characteristics, which could be used in a variety of ways in healthcare, sports/leisure, fashion, military, personal protective, and energy applications. These technologies depend on self-power systems, which require energy sources (e.g., batteries, supercapacitors, and solar cells) to power their projected functionalities in the future. Therefore, fabricating energy harvesting cells (i.e., solar cells) and energy storage cells (i.e., batteries and supercapacitors) in the form of fibers are promising solutions for powering wearable electronics due to their unique features such as flexibility and …

Distributed Leadership: Formal Leadership, Barriers, And Facilitators For Multi-Tiered Systems Of Support, Joseph D. Latimer

USF Tampa Graduate Theses and Dissertations

Currently, educators are exposed to an increased environment of accountability, which prioritizes student academic achievement. That environment of accountability is reinforced by multiple pieces of legislation that also call attention to the implementation of multi-tiered systems of support (MTSS). Even with these federal mandates, educators are continuously overwhelmed implementing MTSS and often leverage distributed leadership practices such as school leadership teams to carry out school improvement tasks. Both distributed leadership practices and MTSS are directly impacted by the practices of formal leadership (i.e., principals). In addition, enablers of and barriers to distributed leadership for MTSS should be investigated. This current …

The Role Of Eicosanoid Metabolism In Mammalian Wound Healing And Inflammation, Kenneth D. Maus

USF Tampa Graduate Theses and Dissertations

Inflammatory wounds, both chronic and acute, lead to increased morbidity and mortality rates, especially in the elderly population. The annual healthcare cost for chronic wound care alone is over $39B in the US and the demographic of susceptible patients is steadily increasing due to an aging population and lifestyle-related diseases (e.g., hyperlipidemia, obesity, and type 2 diabetes). In fact, many chronic wounds currently have a worse 5-year outlook than certain types of cancers. This shows the need for expediting the wound healing process in such a way that compresses inflammatory signaling and encourages wound resolution without sacrificing pathogen removal and …

The Labors Of Professional Wrestling: The Dream, The Drive, And Debility, Brooks Oglesby

USF Tampa Graduate Theses and Dissertations

This study centers and examines the laboring body of the professional wrestler as it moves and works through professional wrestling training. I put forth debility as a theoretical framework to naming and understanding the ways that long-term bodily wear and early death becomes an acceptable cost of doing business for the wrestling industry. Dreams of achieving wealth, fame, and stability while escaping precarity and obscurity draw fans toward joining the industry, and these dreams work to maintain a working culture that takes for granted the ways that the wrestler’s body is marked for disposability, wearing down, and early death. I …

Grey’S Anatomy And End Of Life Ethics, Sean Micheal Swenson

USF Tampa Graduate Theses and Dissertations

In this qualitative study, I analyze three episodes of the prime-time television medical drama Grey’s Anatomy to explore how the show stages conversations of end of life. I extend the work of end of life ethicists with attention to the ways that media may/should/could be used to teach and reflect issues of dying in America. Performing a close textual analysis, I identified two modes of storytelling within the structure of these episodes: Documentary Realism and Melodrama. I argue that if we are to understand medical dramas as a tool for the dissemination of information about end of life ethics, we …

Essays On Upper Echelons Research In Sales Management, Hao Wang

USF Tampa Graduate Theses and Dissertations

This dissertation investigates the role of sales executives in top management teams (TMTs) in driving firm performance. Chapter I offers an overview of the dissertation. Chapter II (“The double-edged sword of sales force power in top management teams”) investigates the impact of salesforce power (i.e., the sales department’s influence in TMT) on organizational performance. The study examines two internal factors (i.e., marketing department power and sales growth) and two environmental factors (i.e., competitive dynamics and market size) that may either weaken or strengthen the influence of salesforce power on organizational performance. Using a panel data set of 10,751 firm-years observations …

An Internet Of Medical Things (Iomt) Approach For Remote Assessment Of Head And Neck Cancer Patients, Ruchitha Chinthala

USF Tampa Graduate Theses and Dissertations

Internet-of-Medical-Things (IoMT) allows for a smart healthcare system to remotely monitor and assess patient’s progress at home. Head and neck cancers (HNC) are treated with various treatment options which are associated with significant side effects, mainly shoulder dysfunction, and trismus (spasm of jaw muscles). However, measurement of patient’s progress, and side effects while undergoing treatment, is limited to evaluation received based on scheduled appointments. Development of strategies to enhance monitoring during follow-up period is needed for earlier identification of problems such as trismus and shoulder dysfunction. In this interdisciplinary research, for the first time, we develop an IoMT enabling application, …

Emotional Intelligence-Driven End-Of-Life Care Simulation For Undergraduate Nursing Students: A Quantitative And Qualitative Study, Nasreen M. Alghamdi

USF Tampa Graduate Theses and Dissertations

Dealing with dying patients or experiencing the death of a patient is one of the most challenging aspects for nursing students. When they enter the workforce, they will be confronted with emotional challenges when caring for terminally ill patients and the intense emotions of bereaved family members. The complexity of end-of-life (EOL) care, with patients and their families, requires emotional intelligence (EI). In EOL care, an emotional piece of information can act as an essential source of information. Simulation has been a successful teaching method to improve emotional learning outcomes among nursing students. The emotionally charged EOL care simulation, and …

A Macro Social Examination Of The Relationship Between Disabilities And Crime Using Neighborhood And County Level Data, Natasha A. Baloch

USF Tampa Graduate Theses and Dissertations

Over the last few decades, there has been a consistent increase in mental illnesses in the US population. This has also lead to increased interactions of those with mental illnesses and/or disabilities with law enforcement and the criminal justice system. Despite these instances, there is limited research on the relationship between disabilities, mental health issues and crime in the large body of criminological research. Further, the current extant research is a) outside the field of Criminology, b) primarily focuses on those with only intellectual or developmental disabilities and/or c) does not examine this relationship at the macro level, despite evidence …

Watershed Management For Nutrient Control In Taylor Creek And Nubbins Slough, Florida, Rachael Z. Cooper

USF Tampa Graduate Theses and Dissertations

Despite efforts to improve water quality within the watershed since the 1970s, harmful algal blooms (HABs) still occur within Lake Okeechobee (LO). HABs are harmful to the people, the ecosystem, and the economy dependent on the lake. Taylor Creek Nubbins Slough (TCNS) is a subwatershed of the lake, contributing to a large percentage of the nutrient loading. Due to the size and complexity of LO’s watershed, two smaller basins within the TCNS subwatershed were selected to evaluate the following research questions: (1) How do water quality trends contrast between two basins? (2) How do nutrient load and treatment within the …

Testing The Protest Paradigm And Racial Threat: Analyzing Articles Of Blm Protests In 2014 And 2020, Rebecca Angela Ruiz

USF Tampa Graduate Theses and Dissertations

The study examines the media coverage of Black Lives Matter protest in years 2014 & 2020. I collected a sample of articles (n=120) from 6 national-level media outlets that varied in political leans. Using the Protest Paradigm and Racial Threat theoretical frameworks to analyze the results, findings suggest that the articles do reflect upon the Protest Paradigm through overall negative sentiment and significant references to looting. I also argue that articles may also reflect racial threat due to a lack of transparency of protesters’ racial makeup or diversity attending demonstrations.

Carbon Diversion, Partial Nitritation/Anammox Enrichment, And Ammonium Capture As Initial Stages For Mainstream Ion Exchange-Deammonification Process, Sheyla Chero-Osorio

USF Tampa Graduate Theses and Dissertations

Eutrophication is a concerning environmental problem worldwide that results in algae blooms, oxygen depletion, damages to aquatic life and public health, water quality issues, and loss of aesthetics in water reservoirs. Nutrient (e.g., nitrogen and phosphorus) discharges from wastewater, agricultural, urban, and residential runoff promote eutrophication in receiving water bodies. In terms of nitrogen removal, conventional biological nitrogen removal (BNR) is a common technique used in many wastewater treatment plants (WWTP). However, BNR requires aeration for nitrification and organic carbon input for denitrification. In WWTP, the aeration represents a considerable investment in terms of energy costs. Recent technologies involve applying …

Stitched Together: What We Learn From Secret Stories In Public Media, Sara D. Rocks

USF Tampa Graduate Theses and Dissertations

Where do you go to divulge your deepest secrets? Some may turn to journals and diaries; some turn to family and friends; some turn to religious confessionals; some turn to Twitter; and still, some take their secrets to the grave. There is at least one other way people share their secrets that has thus far received limited scholarly attention: the crowdsourced confessional. In the new media landscape, intimate stories and personal disclosures with strangers can be (and are) produced as content for a vast pool of additional strangers to consume as media. Yet, little is known about the personal narratives …

The European Super League (Esl): A Political Economy And Media Framing Analysis, Patrick Sidwell

USF Tampa Graduate Theses and Dissertations

The European Super League (ESL) offers an opportunity for research as a case study which exemplifies the potential for sports to engender seismic societal events. To try to understand the ESL and the events surrounding it, this thesis examined it through the dual frameworks of political economy and framing theory to comprehend the roles played by corporate owners and working-class fans who support the game. An overview of the political economic processes of English football was conducted to create meaningful insights. From there, using framing as a theoretical guide, a thematic media analysis was performed across 251 news articles from …

Evaluating And Improving A Novel Toolkit For Implementation And Optimization Of Lynch Syndrome Universal Tumor Screening, Tara M. Wolfinger

USF Tampa Graduate Theses and Dissertations

Individuals with Lynch syndrome (LS) have a hereditary predisposition to colorectal cancer (CRC), endometrial cancer (EC), and several additional cancer types. Universal tumor screening (UTS) is a systematic approach that increases identification of LS so affected individuals can benefit from targeted therapies and risk-reduction strategies to decrease cancer- related morbidity and mortality. Despite the known benefits of UTS, the practice is widely underutilized, likely due to the complexity of implementation and optimization. We developed a novel evidence-based toolkit to help institutions implement and optimize UTS programs. As part of an iterative evaluation process, we obtained feedback on the toolkit through …