Digital Commons Network^™

Context Matters: Profiles Of Emotion Regulation At Work And Home, Roxanne C. Lawrence

USF Tampa Graduate Theses and Dissertations

Previous research has often examined emotion regulation strategies in isolation, without considering how they may combine to form distinct profiles of emotion regulation. This study aimed to address this limitation by identifying profiles of emotion regulation strategies in the work and home contexts, and by examining their associations with individual differences and outcomes. Latent profile analyses (LPA) with expression of naturally felt emotions and the three emotion regulation strategies suppression, avoidance, and reappraisal as indicators revealed three profiles at work (i.e., low regulators, high regulators, and drain regulators) and three profiles at home (i.e., low regulators, gain regulators, and drain …

Effectiveness Of Virtual Onboarding, Shanker Menon

USF Tampa Graduate Theses and Dissertations

During the COVID pandemic that began in 2020, interest in onboarding efficacy increased with going virtual. This survey research study focused on the effectiveness of virtual onboarding by comparing it with face-to-face (traditional) and hybrid onboarding. It spanned 12 different business sectors and involved 730 respondents, including executives, managers, technical personnel, and non-managerial staff. This exploratory study investigated the influence of the onboarding process on important organizational variables, including turnover intention and perception of self-performance. In addition, the study investigated the perception of success of the onboarding process. Results indicated that hybrid onboarding was the most effective followed by virtual …

Psychosocial Factors Influencing The Mental Health And Maternal-Fetal Attachment In Pregnant Women During The Covid-19 Pandemic, Chinyere N. Reid

USF Tampa Graduate Theses and Dissertations

Background: Psychosocial distress, anxiety, depression, and reduced maternal-fetal attachment (MFA) during pregnancy can negatively affect the health of both mothers and their children. Stress during pregnancy is a significant risk factor for maternal mental health issues and low MFA. The global COVID-19 pandemic, which has resulted in millions of deaths worldwide, is a major stressor that has likely had a profound impact on maternal mental health and MFA during pregnancy.

Purpose: The purpose of this study was to examine the influence of COVID-19-related psychosocial factors on the mental health and MFA in pregnant women during the COVID-19 pandemic. This study …

“I Was Doing The Best With What I Had”: Exploring Student Veterans’ Experiences With Community Reintegration, Food Insecurity, And Health Challenges, Jacquelyn N. Heuer

USF Tampa Graduate Theses and Dissertations

Food insecurity is a concern for many populations, including college students and military veterans. The impacts of food insecurity on student veterans are understudied, especially in relation to community reintegration and health. Employing the theoretical frameworks of structural violence and embodiment, this dissertation explores how community reintegration, food insecurity, diet quality, and health interact and influence one another among post-9/11 student veterans in Florida. In doing so, this dissertation considers how the experiences of student veterans are shaped by social inequities (i.e., structural violence) and how these experiences become embodied, thereby shaping student veterans’ health outcomes.

Utilizing findings from surveys …

Deep Learning-Based Automatic Stereology For High- And Low-Magnification Images, Hunter Morera

USF Tampa Graduate Theses and Dissertations

Quantification of the true number of stained cells in specific brain regions is an important metric in many fields of biomedical research involving cell degeneration, cytotoxicology, cellular inflammation, and drug development for a wide range of neurological disorders and mental illnesses. Unbiased stereology is the current state-of-the-art method for collecting the cell count data from tissue sections. These studies require trained experts to manually focus through a z-stack of microscopy images and count (click) on a hundred or more cells per case, making this approach time consuming (~1 hour per case) and prone to human error (i.e., inter-rater variability). Thus, …

Iot Architecture For Enhancing Wayfinding And Accessibility In Smart Cities, Myles Keller

USF Tampa Graduate Theses and Dissertations

This research explores the potential of the Internet of Things (IoT) in enhancing urban wayfinding, particularly for the blind and visually impaired (BVI). Utilizing IoT's multi-layered architecture, smart cities deploy integrated sensors and devices to address urban challenges, with wayfinding as a key focus. While various accessible wayfinding methods have been explored, there exists a gap for more efficient solutions. Within this context, a collision warning system was developed for the BVI, integrated within a broader body sensor network (BSN) framework. Building on this, the study presents AWayNet, an RFID-based network, as a transformative solution. Simulations in the CARLA Simulator …

Booker Creek: Wet Season Water Quality Trends In A Florida Urban Stream, Alexandra M. Shostak

USF Tampa Graduate Theses and Dissertations

Booker Creek, a 1.9-mile stream with a 4.9-mi2 watershed, flows southeast through highly urbanized St. Petersburg, Florida, and empties into Bayboro Harbor, which connects with Tampa Bay. This study collected and analyzed water quality data for several parameters (TN, TP, nitrate-nitrite, ammonia, orthophosphate, chl-a, fecal coliform, dissolved oxygen, pH, turbidity, temperature, and salinity) every two weeks, at four different sites, during the 2022 wet season to characterize the current state and geographic variability of Booker Creek. Current creek sampling regimes, though consistent, do not sample at multiple sites along the creek. Urban streams do not display uniform water quality along …

“We Need To Figure Out Who We Are”: Reframing Manhood In An Online Discussion Forum, Tomas Sanjuan Jr.

USF Tampa Graduate Theses and Dissertations

In this thesis, I explore the potential of online communities in negotiating alternative forms of “doing” masculinity. I focus on the /r/bropill which is hosted on Reddit – home to thousands of active discussion forums called subreddits. I argue that the members of /r/bropill subreddit are attempting to redefine what it means to live your life not only as a man but as a “good man.” Using a purposive sample, I analyzed 24 discussions which totaled 1325 posts (n = 1325). I conducted a qualitative textual analysis of the original posts and comments inspired by grounded theory. My findings reveal …

Neuroendocrine Regulation Of Chemokine Receptor-Mediated Leukocyte Migration Via Heteromeric G Protein-Coupled Receptor Complexes, Garrett Enten

USF Tampa Graduate Theses and Dissertations

Neuroendocrine regulation of the innate immune system is a well-documentedphenomenon. The underlying mechanisms, however, are not well understood. Here we show that at least 20 members of the human chemokine receptor (CR) family heteromerize with one or more members of the α1-adrenergic receptor (AR) family and that all CRs, apart from CXCR1, heteromerize with arginine vasopressin receptor 1A (AVPR1A) in recombinant systems. These heteromeric complexes are detectable in human monocytes and the monocytic leukemia cell line THP-1. Though currently technical limitations prevent the direct visualization of endogenously expressed higher-order hetero-oligomeric receptor complexes, we provide evidence through functional analysis and proximity-based …

Cellulose Ester As Membranes For Controlled Release Fertilizer’S, Muhammed Salman Fajis

USF Tampa Graduate Theses and Dissertations

Growing environmental pollution and non-sustainable materials has escalated the need for research in sustainable practices for many areas including crop production and fertilization. The conventional coating for the controlled-release fertilizers (CRFs) is non-biodegradable. Hence, the development of novel biodegradable coatings for fertilizer prills has emerged as an important area of study. In this thesis, conducting synthesis and application of cellulose esters (biomass membrane) as an encapsulation for the controlled release fertilizers. Therefore, the coating would be effective for a controlled release of nutrients to the crops by sustaining nature. Here, synthesized biodegradable cellulose esters by 8 and 16-carbon fatty acids …

Time To Check In: The Effectiveness Of Modified Check, Connect And Expect For Children Of Incarcerated Parents, Talia E. Shuman

USF Tampa Graduate Theses and Dissertations

Parental incarceration affects approximately 3.5% of minors in the United States, or about 1 in every 28 children (Federal Interagency Forum on Children and Family Statistics, 2015). Parental incarceration is considered an adverse childhood experience (ACE). ACEs like parental incarceration are positively correlated with increased risk of injury, health problems, poorer attention and decision-making abilities, and difficulties forming healthy relationships (Center for Disease Control and Prevention, 2020). In addition, children who have experienced parental incarceration are also more likely to show increased internalizing and externalizing behaviors when compared to same-aged peers who do not have an incarcerated parent (Shlafer & …

Online News Portrayal During The Covid-19 Health Crisis And Journalism's Role In Misinformation In The U.S., Michou Ducilon

USF Tampa Graduate Theses and Dissertations

The COVID-19 pandemic has brought a wealth of new information regarding the virus's origin and treatment. Regrettably, the vast amount of online information has resulted in the proliferation of misinformation, as the World Health Organization reported. To investigate whether journalists may have contributed to this problem, a qualitative analysis was conducted on 15 news articles from top-tier media outlets. Using NVivo software, the articles were analyzed to identify linguistic words and visuals that fell into coding categories based on Behrendt's (2008) contextual analysis for evaluating text. Each article was then coded again to identify common themes. During this process, new …

Liminal Legality, Social Exclusion, And The Island Community: The Uncertain Futures Of Brazilian Immigrant Youth In Martha’S Vineyard., Bárbara F. De Paula

USF Tampa Graduate Theses and Dissertations

This project explores the realities of Brazilian undocumented immigrant youth who entered the United States before the age of 18 and have settled in the island community of Martha’s Vineyard located in Massachusetts. This project analyzes the barriers that Brazilian undocumented youth encounter in pursuing their dream futures, in the light of their legal status and the island context. The theoretical frameworks used in the study drew from notions of segmented assimilation and modes of incorporation (Bean, 2011; Patler, 2018a), immigrant social networks (Assis, 2003; Padilla, 2006), liminal legality, (Cebulko, 2014; Menjíver, 2006; Patler, 2018a) citizenship frames, (Friorito, 2019; Patler, …

Differences In Mental Wellbeing Factors Amongst College Students By Intersections Of Race/Ethnicity And Sexual Orientation/Gender, Hannah N. Schlichte

USF Tampa Graduate Theses and Dissertations

The aim of this study was to examine our understanding regarding the intersection of both racial/ethnic and sexual/gender minority identities and its impact on the mental health of college students. A secondary data analysis of the Wake Forest University Wellbeing Assessment was utilized. The total number of participants was comprised of 528 students from a large research university in the Southeastern United States. For this study, new categories representing the intersection of race/ethnicity (White, Black, Hispanic etc.) and sexual orientation/gender (LGBTQ, heterosexual, cisgender etc.) were created: double majority, single minority race/ethnicity, single minority sexual orientation/gender, and double minority. One-way ANOVA …

A Gis Workflow For Analyzing Spatiotemporal Variance In Food Pantry Access: A Case Study For Hillsborough County, Florida, Molly J. Darby

USF Tampa Graduate Theses and Dissertations

Researchers often use geographic information systems (GIS) to measure accessibility to food pantries, but the impact operating hours have on accessibility remains understudied. Unlike grocery stores or healthcare facilities, food pantries have irregular distribution schedules, therefore, measuring geographic accessibility alone potentially creates an inaccurate or inflated representation of access. This study proposes a GIS workflow for analyzing food pantry accessibility over space and time by considering hours of operation and location, allowing researchers to examine when and where access to food assistance is most limited over the span of a typical week. The method was applied to Hillsborough County, Florida …

Time-Series Analysis Of Coral Reef And Reef-Fish Biodiversity In The Florida Keys National Marine Sanctuary, Cara L. Estes

USF Tampa Graduate Theses and Dissertations

The general decline in coral-reef ecosystem health throughout the Caribbean between the 1970’s and late 1990’s seems to have slowed down or stopped, with only slight decreases in coral reef cover observed in the 2000’s through 2019. The earlier decline can be attributed to many different local and regional stressors that have acted together, and include naturally occurring (hurricanes, diseases) and anthropogenic pressures (increased sedimentation, fishing). These ecosystems provide a range of services to people, including food and protection from storms, with an annual benefit of billions of dollars. This has driven a desire to better understand these ecosystems. The …

Improving Interview Skills Through Virtual Reality With Behavior Skills Training For Students With Disabilities, Garrit Dubois

USF Tampa Graduate Theses and Dissertations

Individuals with disabilities experience lower employment rates compared to the general population, highlighting the need for interventions to enhance their employability. Interview skills are the most crucial skills to develop. Researchers have used behavioral skills training (BST) to improve vocal and non-vocal aspects of interviewee behavior. Additionally, virtual reality (VR) has been used to simulate the interview process and promote generalization of skills across various environments. However, limited research has investigated the use of VR for vocational skills training in students with disabilities, particularly those still enrolled in high school. This study aimed to examine the use of VR combined …

Regulated Intramembrane Proteolysis By M82 Peptidases: The Role Of Prss In The Staphylococcus Aureus Stress Response, Baylie M. Schott

USF Tampa Graduate Theses and Dissertations

Staphylococcus aureus is a major threat to human health, which is only exacerbated by its resistance to methicillin and other frontline antibiotics. Consequently, annual hospitalizations resulting from methicillin-resistant Staphylococcus aureus (MRSA) have been recorded in the hundreds of thousands for decades. However, the global impact of this opportunistic pathogen cannot solely be attributed to its antibiotic resistance, as S. aureus is also an expert at adapting to host conditions and responding to external stress. Here we attempt to gain a better understanding of a S. aureus factor that aids in circumventing such external insult - PrsS - a membrane protease …

Patterns In Biodiversity And Community Assemblage In Macrofaunal Fouling Communities On Tampa Bay Floating Docks, Cassidy C. Bell

USF Tampa Graduate Theses and Dissertations

Understanding biodiversity trends of highly disturbed urban landscapes is essential as anthropogenic factors continue to drive global biodiversity loss. Within marine ecosystems, macrofaunal fouling communities, aggregations of epibenthic invertebrates that colonize human-made structures, represent an ecologically important subset of urban coastlines. Tampa Bay is a highly urbanized estuary in Florida, USA, and is home to the state’s largest port, Port Tampa Bay. This makes the bay a prime site for the introduction of new species, with many organisms either considered invasive or cryptogenic, their origins left unclear. Many factors may contribute to the communities that form on urban structures including …

Knowledge Integration In Domain-Informed Machine Learning And Multi-Scale Modeling Of Nonlinear Dynamics In Complex Systems, Phat K. Huynh

USF Tampa Graduate Theses and Dissertations

Nonlinear dynamical systems have been extensively used to model various phenomena in the changing world around us, especially in science and engineering fields. Thanks to breakthrough advancements in sensing technologies, an increasingly high volume of multi-modal sensor data has been collected, which enables us gain better insights into complex systems dynamics and build sophisticated data-driven machine-learning-based dynamic models without having the access to the underlying governing equations. However, integrating domain-specific knowledge in machine learning algorithms remains pivotal for various reasons: it promises enhanced predictive accuracy, better model interpretability, and increased generalizability. This dissertation delves into three core research questions, each …

Evaluating Video Feedback To Improve Esports Performance In Street Fighter V, Romel C. White

USF Tampa Graduate Theses and Dissertations

eSports is a newly rising field with rapidly increasing cultural validity. Despite the wide array of similarities between eSports and traditional sports, behavioral skill acquisition interventions have yet to be applied to video game skills. Feedback-based behavioral interventions in particular have been commonly used and implemented for effective skill acquisition for traditional sports. Although video feedback has been established as effective in conjunction with video modeling for traditional sports, further research is needed to validate its efficacy as a standalone intervention. In this study, the effects of video feedback were analyzed with three participants in a nonconcurrent multiple baseline across …

Novel Fpga Speed Grade Authentication Method For Counterfeit Identification, Ana Maria Camacho Negrete

USF Tampa Graduate Theses and Dissertations

Today's society runs on modern microelectronics. Whether it is our computers, smartphones and tablets, navigation systems, and even automobiles, the impact of inferior components on our society's functioning is a well-known and serious challenge.Inferior components, in this context, refer to non-specification compliant parts that are known to enter the global supply chain either due to manufacturing/quality control errors or intentional component counterfeiting by non-OEM (original equipment manufacturer) sources. This thesis discusses the latter, which is a well-documented and growing challenge that poses a serious risk to every sector of our society. This has been further exacerbated by the global pandemic-driven …

Chemical Analysis Of Metabolites From Mangrove Endophytic Fungus, Sefat E Munjerin

USF Tampa Graduate Theses and Dissertations

Natural products hold a significant place in drug discovery for their abundant and unique secondary metabolites. These secondary metabolites which encompass a range of organic compounds such as alkaloids, phenols, peptides, flavonoids, polyketides, and terpenoids, can easily be exploited for drug development. Endophytic fungi, residing harmoniously with its host, have emerged as generous producers of bioactive secondary metabolites, displaying efficacy against a wide array of human pathogens, including the challenging ESKAPE pathogens.

The research explores endophytic fungi and their prospective for drug discovery and development through the synthesis of distinctive secondary metabolites. Endophytic fungus, HM13-26C-2B, collected from Honeymoon Island, Florida …

3d Musculoskeletal Analysis Of The Rhea Americana Forelimb And Implications For The Evolution Of Avian Flight, Sarah Elizabeth Guzinski

USF Tampa Graduate Theses and Dissertations

To understand the evolutionary gain, and loss, of avian powered flight, attention must be paid to the wing morphology of species across these transitions. However, paleognaths, while being the most well-known flightless birds, have greatly understudied forelimbs. Additionally, current literature regarding their forelimb anatomy generally lacks a three-dimensional (3D), biomechanical approach. Among the flightless paleognaths, the rhea is notable in having the least reduced forelimb. Though not used for flight, the wings of rheas are used in other behaviors such as courtship and threat display, as well as nest defense. In this study, I investigate the forelimb anatomy of an …

Use Of Silica Dust And Lunar Simulants For Assessing Lunar Regolith Exposure, Layzamarie Irizarry-Colon

USF Tampa Graduate Theses and Dissertations

The utilization of the lunar regolith holds immense potential for future space exploration, but the potential health risks associated with lunar regolith are a significant concern. This literature review seeks to critically assess the use of silica and lunar simulants standards and permissible exposure limits (PELs) to evaluate the adverse health effects of lunar regolith. The literature review covers an extensive analysis of existing research, health risks, toxicological properties, and physical and chemical composition associated with silica, lunar simulants, and lunar regolith by using three main sources: regulations, scholarly articles, and Kennedy Space Center (KSC) discussion. This comprehensive analysis forms …

The Aging Workforce: How It Relates To Incident Rates Within A Distribution Warehouse And A Chemical Manufacturing Building, Elisabeth V. Jones

USF Tampa Graduate Theses and Dissertations

Over the past 20 years or so, the average age of the global population has slowly increased. This is due to low birth rates as well as increased life expectancy. With this global population aging, there has also been a shift in the global labor market causing a trend termed the “aging workforce.” However, with the aging workforce comes a new set of issues for the health and safety professional because they create new hazards. This is due mostly because of the body undergoing physical, psychological, and cognitive decline as someone ages which causes decreased capabilities. Thus, the purpose of …

Developing A Point-Of-Care Detection Kit For Parkinson’S Disease Using Gold Nanoparticle-Based Lateral Flow Assay, Ali Aljassabi

USF Tampa Graduate Theses and Dissertations

Parkinson’s disease (PD) is the second most common neurodegenerative disease after Alzheimer’s disease and the fastest-growing neurodegenerative disorder in the world. The major issue with PD is that it takes several years of biological changes until the patient starts to experience physiological symptoms that could affect their daily lives. The major hallmark of PD is the appearance of Lewy body inclusions in the neuron’s cytoplasm, which is rich in a protein called α-Synuclein (α-Syn). Several studies have shown that the levels of α-Syn in blood increase because the excess α-Syn is released from neurons into the bloodstream through extracellular vesicles. …

Damned & Damned: Examining Vexatious Litigation And The Vexatious Litigant Statute In Florida Courts, Sarah L. Harper

USF Tampa Graduate Theses and Dissertations

This dissertation examines self-represented litigants subjected to limitations under the Vexatious Litigant statute (F.S. 68.093) and related case law. It draws data from official records, surveys, interviews with judges, and a thematic analysis of court orders. The present research consists of two studies: Study I focuses on the application of Florida's Vexatious Litigant statute and similar sanctions, and Study II explores judges' decision-making in cases involving challenging self-represented litigants. Restrictions on litigants' court access raise concerns about due process rights, and an assessment of the use of these sanctions and litigants' practices is vital for understanding their application. The findings …

Entanglements Of Teenage Food Security Within High School Pantries In Pinellas County, Florida, Karen T. Díaz Serrano

USF Tampa Graduate Theses and Dissertations

Food insecurity has the ability to shape an individual’s or a family’s everyday life and take emotional, psychological, and physical tolls. Among adolescents, not having access to nutritious food could lead to physical effects during growth and development. Moreover, the stress and anxiety of not knowing where their next meal is coming from and the social stigma associated with being food insecure can have negative effects on mental health. A recent solution to these issues is locating food pantries in high schools. Purpose: This exploratory study examined how high school students in Pinellas County, Florida perceive the use of a …

Gender Differences In Episodic Memory In Later Life: The Mediating Role Of Education, Sara Robinson

USF Tampa Graduate Theses and Dissertations

In the United States (U.S.), 14 million individuals aged 65+ are expected to be diagnosed with dementia by 2060, and women are nearly twice as likely to be diagnosed. Low education is a well-established risk factor for dementia and is hypothesized to partly explain the gender differences in late-life cognition. However, few studies have investigated education as a mediator of these gender differences. This study aims to investigate education as a mediator of gender differences in episodic memory using longitudinal data from the U.S. Health and Retirement Study (HRS). I used a sample of 35,721 respondents (20,190 women and 15,531 …