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Mapping Seafloor Habitats And Characterizing Demersal Reef Fish Communities On The West Florida Shelf Across Multiple Spatial Scales Using Multibeam Sonar And Underwater Video, Alexander R. Ilich

USF Tampa Graduate Theses and Dissertations

In this dissertation, I examine the role of spatial scale in deriving seafloor terrain attributes, modeling benthic habitat, and analyzing ecological patterns of the demersal reef fish communities on the West Florida Shelf (WFS), with implications for improving predictive habitat mapping and understanding fish-environment relationships. Spatial scale plays a central role in benthic habitat mapping and ecological inference, influencing how terrain attributes are derived, how habitats are modeled, and how ecological responses are manifested. This work integrates multiscale terrain analysis, acoustic remote sensing, and community ecology to evaluate how spatial scale influences both physical habitat representation and ecological analysis.

Chapter …

Association Of Social Isolation, Loneliness, Social Strain And Support With Cancer Onset, And Frailty And All-Cause Mortality In People With Cancer, Joanne Elayoubi

USF Tampa Graduate Theses and Dissertations

Cancer is the second leading cause of death both in the United States and globally and for individuals over sixty-five. In 2026, approximately 2,114,850 new cancer cases are projected to emerge according to the National Center for Health Statistics (Siegel et al., 2026). Cancer incidence is increasing, making older adults sixty-five and older at risk of frailty and mortality following cancer. Although social isolation, loneliness, lack of social support, and social strain have been found to be risk factors for poor health and mortality, it is not clear the extent to which social relationships are associated with incident cancer, and …

Hospitality As A Languageless Movement: Mapping The Interconnectedness Of Inclusion, Disability, And Hospitality, Alycia M. Bobak

USF Tampa Graduate Theses and Dissertations

This dissertation thinks with post-qualitative inquiry to explore how inclusion, disability, and hospitality move through spaces in higher education and how their meanings shift between policy, practice, and personal ethics and dispositions. Using Derrida’s notion of hospitality and Deleuze and Guattari’s concept of the Body without Organs, this study presents the consideration of how university spaces welcome students with disabilities and how feelings of belonging, receiving, and acceptance are produced within those spaces. Rather than viewing inclusion and disability as fixed concepts, this research considers how language and personal ethics continuously reshape their meaning through interactions and affect.

This study …

Success In Student Leadership: An Appreciative Inquiry Approach To A Student Leader Program, Ana M. Tayeb

USF Tampa Graduate Theses and Dissertations

This study explored the strengths and successes of a Student Leader Program within a Physician Assistant (PA) program at a large southeastern university, using an Appreciative Inquiry (AI) framework to understand how the program positions students for success. The program, established to support leadership development, academic engagement, and professional growth, includes elected student roles such as class president, vice president, wellness champion, volunteer liaison, and class liaisons. Through semi‑structured interviews with faculty, administrators, current Student Leaders, non‑leader students, and a Student Leader alumnus, the study examined lived experiences and perceptions of the program’s impact. Guided by the AI 4‑D cycle, …

Race, Ethnic, And Gender Disparities In Human Trafficking Risk, Identification, And Investigation, Emily D. Walker

USF Tampa Graduate Theses and Dissertations

Youth and human trafficking remain significant and complex issues. Existing literature suggests that trafficking risk, victimization, and identification are shaped by structural and social context, creating differential impacts across demographic groups, such as racial, ethnic, and gendered groups. Yet, current research has yet to fully capture the complexity of victimization across groups. This dissertation consists of three interconnected studies examining youth trafficking investigations. Using a mixed-methods approach and administrative data from Florida Department of Children and Families (DCF), this dissertation address three objectives (1) examining potential variation in documentation of trafficking risk, victimization, and narrative framing of youth trafficking investigations …

Using Contingency Mapping To Decrease Disruptive Behavior And Increase On-Task Behavior For Students With Autism Spectrum Disorder, Carelis Y. Pabey Pagan

USF Tampa Graduate Theses and Dissertations

Visual aids have been widely used in educational and therapeutic settings to support individuals with developmental disabilities, particularly autism spectrum disorder (ASD). Among these, contingency maps, a graphic tool that visually represents the outcomes of alternative behaviors and problem behavior, have shown promise in reducing problem behavior, increasing communication, and promoting independence. However, existing research on contingency mapping is limited. The proposed study extended this literature by evaluating the effects of contingency maps on academic engagement and disruptive behavior for children with ASD in a school setting during natural classroom activities. A multiple baseline design across participants was used to …

Philanthropic Grantmakers’ Roles In Transforming Higher Education: A Narrative Inquiry, Elizabeth Jean Larkin Davis

USF Tampa Graduate Theses and Dissertations

Philanthropic foundations have become influential actors in higher education reform, often supporting initiatives to improve student success, advance equity, and promote systemic change. Yet limited research has examined how philanthropic grantmakers understand and navigate their roles in shaping long-term change across the higher education field. This narrative inquiry explored the personal and professional experiences of eight philanthropic grantmakers working across different foundations, roles, and organizational contexts in the United States. Guided by organizational change theory, Strategic Action Fields theory, and sustainability planning in dynamic systems, the study examined how grantmakers made sense of their responsibilities, influence, and contributions to systemic …

Examining The Referral Pathway For Black Families Evaluated Through The Early Steps Program, Zelda Fleming

USF Tampa Graduate Theses and Dissertations

Research indicates that for children with or at risk for developmental delays, early intervention services are associated with improvements in academic and cognitive skills by the time they reach kindergarten (Atkins et al., 2020; Litt et al., 2017). Untreated developmental delays are linked to early school failure and social and emotional problems (Sher et al., 2020). Black children are 5 times less likely to receive early intervention services when compared to their White peers (Barnard-Brak et al., 2021; Feinberg et al.,2011). Thus, they often do not have the opportunity to receive early intervention services. The literature in this area suggests …

Portable Trace Gas Analysis With Multipass Cavity Raman Scattering, Charuka Muktha Arachchige

USF Tampa Graduate Theses and Dissertations

The continual increase in the production and utilization of chemicals across a growing range of industrial, environmental, and medical applications necessitates accurate and efficient measurement of molecular composition. Trace gas detection is particularly critical in industrialized settings, where the identification of colorless and odorless gases is essential for ensuring operational safety and regulatory compliance. Recent advances in optical instrumentation have positioned spontaneous Raman scattering as a promising analytical technique for trace gas analysis, with multipass cavity enhancement providing a cost-effective pathway to high detection sensitivity. However, existing implementations remain confined to laboratory-scale optical table setups, limiting their applicability in field …

Designing For Fitness And Resilience In Human Artificial Intelligence Systems, Thomas R. Gill

USF Tampa Graduate Theses and Dissertations

Over the last decade, new artificial intelligence models, frameworks, and applications have emerged that have radically changed the socio-technical landscape. These new technologies represent both great opportunities and great potential risks. Due to the recency of their emergence, there is little known about the longevity and long-term repercussions of artifacts powered by new artificial intelligence technology. In this dissertation, I evaluate A.I. and A.I.-based artifacts through the lens of the fitness-utility model, a tool developed by Gill and Hevner (2013) for the evaluation of an artifact's ability to survive and reproduce over long time horizons. In so doing, I also …

Preparing Preservice Teachers: Developing Skills For Working With Students With Disabilities In The Social Studies Classroom, Melissa Waugh

USF Tampa Graduate Theses and Dissertations

This study was aimed towards investigating the extant research, best practices, and teacher preparation standards related to working with students with disabilities in the social studies classroom. The study was guided using three research questions: Are students with disabilities’ learning needs reflected in the National Council for Social Studies National Standards for the Preparation of Social Studies Teachers?; How do preservice social studies teacher programs prepare their candidates for teaching students with disabilities as evidenced by Social Science Education methods course syllabi?; and, What might a college-level course aimed towards social studies teaching methods centering around students with disabilities’ learning …

Photoluminescent Studies Of Metal-Organic Frameworks For Small Molecule Sensing, Julia T. Dematteo

USF Tampa Graduate Theses and Dissertations

Metal–organic frameworks (MOFs) are highly tunable nanoporous materials with broad applications in gas separation, drug delivery, light harvesting, and chemical sensing. The incorporation of photoactive components into MOFs enables the development of optical sensors capable of detecting a wide range of analytes. Porphyrins and metalloporphyrins are particularly attractive for such applications due to their high molar absorptivity, strong emission quantum yields, and versatile interactions with chemical species.

In this work, two porphyrinic MOFs, PCN-222 and MOF1(Cd), are investigated. Both frameworks utilize tetrakis(4-carboxyphenyl)porphyrin (TCPP) as the organic linker, imparting optical functionality to the materials. Integration of TCPP into the framework induces …

Development And Initial Validation Of The Identifying Behavioral And Emotional Growth Indicators And Needs—Parent Rating (I-Begin-P), Samin Khallaghi

USF Tampa Graduate Theses and Dissertations

Multi-informant approaches provide a more comprehensive understanding of behavior patterns and are considered the gold standard for behavioral assessment. However, few screening tools for young children in school settings incorporate parental perspectives, and those that do remain under-researched with respect to their validity and reliability. To address these gaps, the Identifying Behavioral and Emotional Growth Indicators and Needs-Parent Form (I-BEGIN-P) was developed as an extension of the I-BEGIN-T (Teacher) scale for children aged 3 to 5 years. The purpose of this study was to develop and initially validate I-BEGIN-P. First, the content validity of I-BEGIN-P was assessed using expert panel …

Risk-Aware Deep Reinforcement Learning In Portfolio Optimization, Shimin Zhang

USF Tampa Graduate Theses and Dissertations

Portfolio optimization is important in investment, with the purpose of maximizing profit whilemanaging risk. The traditional portfolio optimization method, Modern Portfolio Theory, is based on the assumption that returns are normally distributed, which is always violated in practical financial market settings. In addition, traditional approaches to portfolio optimization are mostly designed as static optimizations and fail to account for the nonlinearity and non-stationarity of contemporary financial markets. Recent developments in deep reinforcement learning have attracted considerable attention for treating portfolio optimization as a sequential decision-making process. Traditional portfolio optimization methods usually evaluate risk based on the variance of the returns. …

Disclosing Hunger: Predictors And Screening Strategies For Food Insecurity In Undergraduate University Students And Adults Contexts, Jocelyn Emily Jarvis

USF Tampa Graduate Theses and Dissertations

Food insecurity is a growing public health concern among college students in the United States, with prevalence estimates exceeding those of the general population. Despite the availability of campus, community, and federal food assistance resources, utilization remains low, suggesting that barriers extend beyond structural access. This dissertation examines the psychosocial, behavioral, and institutional factors that shape food insecurity disclosure and help-seeking behaviors among undergraduate students, guided by the Social Ecological Model (SEM).

This work includes three complementary studies. Study One presents a scoping review synthesizing 16 U.S.-based studies to identify psychosocial determinants of food assistance utilization among food-insecure adults. Findings …

Vestitus Auctoritate: Visual Representations Of Power In Late Roman Sicily, Angela L. Costello

USF Tampa Graduate Theses and Dissertations

This dissertation examines how Late Roman iconography of dress and appearance acted as visual bolsters of elite identity in the province of Sicily by engaging with two villas and their mosaic corpora: the Villa Romana del Casale, and the Villa Romana del Tellaro. Traditional Roman scholarship on power have focused on monuments, military achievements, and imperial building programs, and while these are all necessarily facets of Late Roman identity, there are valuable avenues left unexplored. Some, but not enough, attention has been given to the role of dress iconography during Late Antiquity. This study addresses this gap by investigating how …

Strategic Dimensions Of Artificial Intelligence: Development Globalization, Investment Dynamics, And Firm Performance, Alysson Silveira

USF Tampa Graduate Theses and Dissertations

Artificial Intelligence (AI) is quickly changing the competitive landscape of most industries, and understanding how to incorporate this technology into products, services, and processes is becoming crucial for firms. This dissertation presents three studies that address different strategic challenges that arose with the unfolding of AI. First, I study how multinational enterprises globalize the development of AI. I argue that concentrating AI development or globalizing it has different implications for supply chain responsiveness and operations complexity. I use a combination of a rare dataset on software presence across 45 countries and financial data to show that AI development globalization has …

Van Der Waals Interactions Through The Lens Of 2d Materials With Emphasis On Many-Body Effects, Thi Xuan Diem Dang

USF Tampa Graduate Theses and Dissertations

This dissertation addresses the long-standing challenge of accurately and efficiently modeling long-range electron correlations, with a particular focus on van der Waals (vdW) interactions. These interactions play an essential role in predicting the structure, stability, and functionality of molecular systems and condensed matter materials. Although Density Functional Theory (DFT) has become a robust cornerstone of computational materials science, traditional formulations of the theory frequently fail to capture dispersive interactions, leading to significant errors in determining interlayer distances, binding energies, and stacking configurations. These limitations become particularly pronounced in layered materials and vdW heterostructures (HSTs), where weak long-range correlations are sensitive …

Transformative Leadership In Community Schools: Building Equitable Cultures And Sustainable Community Partnerships For Student Success, Latiecea Janie Hailey-Brown

USF Tampa Graduate Theses and Dissertations

Abstract

This qualitative autoethnographic inquiry explored how transformative and relational leadership were enacted and evolved during the creation, development, and sustainability of a community partnership school, and how these leadership experiences shaped my understanding of leadership and influenced my development and identity as a leader. Grounded in a constructivist paradigm and framed within a scholarly practitioner orientation, I critically examined my leadership experiences as assistant principal and principal of Havenwood: A Community Partnership School, the first community school in Rosewood County, Florida. Through reflective analysis of leadership practices, relationships, and decision-making processes, I illuminated how my leadership contributed to student …

Disability Stigma, Disability Identity, And Psychological Distress Among Young Adults With Disabilities, Dylan G. Serpas

USF Tampa Graduate Theses and Dissertations

Disability discrimination is positively associated with psychological distress. Internalized disability stigma or the extent to which negative beliefs about one’s disability become personally adopted is implicated as a mediator. Moreover, disability identity processes, including identity affirmation and rejection may shape downstream consequences of navigating disability discrimination and internalization processes. These relationships are particularly relevant among young adults with disabilities (YAWD) who navigate a critical developmental period characterized by identity formation and heightened perception to social evaluation. In this study, 233 YAWD aged 18 to 25 completed a cross-sectional survey measuring disability microaggressions, internalized disability stigma, disability identity (rejection and affirmation), …

Can Hope Be Changed In 30 Minutes? The Development, Refinement, And Pilot Evaluation Of A Hope-Based Single-Session Intervention, Aileen Kangavary

USF Tampa Graduate Theses and Dissertations

Background: Although mental health problems are on the rise among youth, nearly 80% do not access treatment. Schools serve as key settings to address adolescent mental health and wellness needs given the substantial barriers that limit access to community-based mental health services. Despite this potential, schools often face implementation challenges. Therefore, scalable and accessible approaches are needed to meet the growing demand for adolescent mental health support. Single-Session Interventions (SSIs) represent a promising, cost-effective, and digital avenue for providing timely mental health support to youth. Increasingly, research conceptualizes mental health through a two-dimensional framework that includes the presence of well-being …

A Portable Device To Elicit Sensory Trick And Monitor Forearm Muscle Activity In Pianists With Musician’S Dystonia, Josef Franczak

USF Tampa Graduate Theses and Dissertations

Musician’s Dystonia (MD) is a condition that can be acquired in professional musicians,causing involuntary contractions and the loss of fine motor control. The most common pharmaceutical treatment, botulinum toxin injections, has been shown to have side effects of muscle weakness and atrophy. The sensory trick, shown to temporarily relieve symptoms of dystonia, has potential to be used as an alternative or alongside current therapies, allowing patients with MD to return to playing music professionally. To systematically deploy the sensory trick and monitor forearm muscle activity, the first prototype of the Wearable Sensorimotor Integrator (wSMI) has been developed.

The wSMI is …

Reproductive Trends Of Male Atlantic Spotted Dolphins (Stenella Frontalis) Following Two Hurricanes In The Bahamas, Tara Southerland Pedersen

USF Tampa Graduate Theses and Dissertations

Marine mammals are impacted by hurricanes that may influence reproductive success and genetic diversity. Understanding how populations respond to demographic change is increasingly important as extreme weather events become more frequent. A population of Atlantic spotted dolphins (Stenella frontalis) on Little Bahama Bank in the Bahamas has been observed continuously since 1985. In 2004, two hurricanes struck the region within one month, resulting in the loss of approximately 36% of the population. Population declines can alter the operational sex ratio (OSR), social structure, and encounter rates among potential mates, potentially influencing patterns of reproductive success. Previous molecular studies showed that …

Photophysical Behavior Of Ruthenium-Based Complexes: A Study Of Ligand Variation And Encapsulation In Metal-Organic Frameworks, Delaney S. Sellers

USF Tampa Graduate Theses and Dissertations

Ruthenium (II) polypyridyl complexes have emerged as a prominent class of compounds in inorganic photochemistry due to their structural robustness, reversible redox chemistry, and tunable excited-state dynamics. Central to the investigation of these systems is the ability to manipulate the triplet metal-to-ligand charge transfer state (3MLCT). In the context of photoactivated chemotherapy (PACT), the strategic deactivation of this MLCT state to populate a dissociative triplet ligand field state (3LF) can enable the controlled, light-triggered release of caged cytotoxic agents. This work focuses on understanding the caging mechanism of various ligands to optimize the eventual delivery of cytotoxic ligands. In this …

Development Of A Coupled Hydrological-Nitrogen Modeling Framework For Urban Stormwater Pond Analysis, Tione Grant

USF Tampa Graduate Theses and Dissertations

Urbanization impacts the hydrological and biogeochemical processes that regulate water quality in downstream ecosystems, leading to increased stormwater volume and nitrogen loads in receiving aquatic environments. Although stormwater ponds are designed as simple hydraulic storage basins, they function more like managed ecosystems within urban drainage systems, offering both hydraulic attenuation and passive nutrient treatment. However, nitrogen removal efficiency varies significantly and depends on interactions between hydrological and biogeochemical factors. This thesis details the development, calibration, validation, and sensitivity analysis of a coupled hydrological-nitrogen model framework for Aaran’s Pond, an urban stormwater pond in Hillsborough County, Florida.

A process-based water budget …

Under Pressure: Effects Of The Hot Docs Behavioral Parent Training Program On Caregiver Blood Pressure, Bria N. Ferera

USF Tampa Graduate Theses and Dissertations

Chronic stress is heightened for caregivers of children with heightened disruptive behaviors. With chronic stress supported as a major factor leading to maladaptive parenting and caregiving practices, exploring new ways to collect data on parenting stress remains a critical research priority (van der Lubbe et al., 2024). Behavioral Parent Training (BPT) programs are linked to improved parent-child relationships and reduced problem behavior (Armstrong, 2006; Agazzi, 2021; Patrusky, 2025). However, few studies have used physiological biomarkers in conjunction with self-reported measures to explore connections in this area. Similarly, other physiological considerations are rarely considered upon evaluation of the impacts of BPT …

Trophic Structure Of Reef-Fish Assemblages In The Eastern Gulf Of Mexico Varies By Depth And Reef Type, Jessica L. Van Vaerenbergh

USF Tampa Graduate Theses and Dissertations

Globally, marine ecosystems are increasingly threatened by anthropogenic stressors, leading to reef degradation, changes in reef-fish assemblages, and altered trophic structure. In this study, I investigated reef-fish underwater visual survey data collected over a decade (2013-2023) from paired natural and artificial reefs in the eastern Gulf of Mexico. I applied the novel Normalized Reef Status Index (NRSI) to evaluate how biomass was distributed across the three trophic categories (i.e., Lower Trophic Position (LTP; 2.0-2.9), Central Trophic Position (CTP; 3.0-3.9), and Upper Trophic Position (UTP; ≥4.0). This index is a metric to assess the ecological status of reef systems by investigating …

Development And Evaluation Of The East Florida Coastal Ocean Model (Efcom), Orion B. Scharton-Witmer

USF Tampa Graduate Theses and Dissertations

Florida’s Atlantic coast has abundant resources in beaches, state parks, aquatic preserves, and wildlife refuges as well as densely populated coastal cities in low lying areas that are all subjected to natural disaster threats from the oceans. There is an urgent need for a high-resolution coastal ocean circulation model for this region. Based on the application of the Finite Volume Community Ocean Model (FVCOM), an East Florida Coastal Ocean Model (EFCOM) is developed, downscaling from the deep ocean, across the continental shelf, and into the estuaries. It employs an unstructured grid with horizontal resolution varying from 3 kilometers at the …

A System Dynamics Perspective Of User Adaptation: The Case Of Exoskeleton Technology, Enzo Novi Migliano

USF Tampa Graduate Theses and Dissertations

Technology implementation is a common occurrence in organizations to which workers must adapt. Although research on workers' technology acceptance is widely spread, research on the workers' technology adaptation process is less represented in the literature. The discrepancy in the literature permeates research on new technologies currently being implemented in organizations, such as occupational exoskeletons. As in other technologies, the variance research perspective dominates the literature on exoskeleton implementations. The current thesis aims to foster process research by formalizing the coping model of user adaptation (Beaudry & Pinsonneault, 2005) and exploring research questions regarding workers' adaptation to general technology and exoskeletons. …

In Search Of Protective Factors Against Gun-Carrying For Black Male Youth: A Dissertation- Sectional And Longitudinal Analysis Of Secondary Data, Kevin Edward Antwi

USF Tampa Graduate Theses and Dissertations

This study examines the relationship between risk and protective factors and gun carrying among Black male youth using both individual-level and population-averaged effects. Grounded in the risk and protective factors framework and the ecological systems model, the study explores how protective factors at the individual, peer, school, and community levels influence gun carrying at a single point in time and over time. This research aligns with the Grand Challenges of Social Work by preventing gun violence and informing prevention efforts. Using the baseline and 11 waves of data from the Pathways to Desistance Study, the analysis identifies factors that reduce …