Digital Commons Network^™

"What's A Computer?" Exploring Insurance Agents' Role In Small Business Cyber Insurance Transactions, Dalton A. Crabtree

USF Tampa Graduate Theses and Dissertations

This mixed-methods study examined how insurance agents' role identity impacts cyber insurance transactions, addressing gaps in professional practice and academic literature. Small businesses increasingly rely on cyber insurance for protection as cyber risk continues to evolve. The study employed sequential explanatory methodology with 25 interviews across three groups: insurance agents (n=15), corporate cyber insurance professionals (n=5), and small business owners (n=5). Thematic analysis using Katz and Khan's Role Episode Model informed development of the Cyber Insurance Role Identity Scale (CIRIS), tested with 100 agents. Six themes emerged. Key findings reveal that successful cyber insurance transactions require agents to transition from …

A Discussion Of Community: An Ethnography Of Designing Asynchronous Video Discussions To Reveal Student Perceptions Of Digital Presence In Online Learning, Chad S. Garcia

USF Tampa Graduate Theses and Dissertations

This mixed-methods digital ethnography investigates how video-based discussions (VBD) influence community building in asynchronous graduate education. Using the Community of Inquiry (COI) framework, this study looks at student experiences in a History of Higher Education class where traditional text-based discussions were replaced with video presentations and peer responses. The research explores how video discussions affect students' sense of presence, how video presence impacts engagement patterns, and which multimedia elements contribute to community development.

Data collection included semi-structured interviews with students and instructors, LMS analytics, video content analysis, and ethnographic observation throughout Spring 2024. Analysis revealed a notable disconnect between traditional …

Introductory Chemistry Student Success: Investigating Study Strategies And Evaluating An Informative Utility Value Intervention, Pallavi Nayyar

USF Tampa Graduate Theses and Dissertations

Improving retention in STEM (science, technology, engineering, and mathematics) programs is essential to meet the growing demand for skilled professionals in the domestic workforce. To achieve this, it is critical to understand and address the factors that influence student persistence in STEM degrees. Gateway courses such as general chemistry often serve as early barriers to STEM degree completion, with high rates of attrition that impact not only individual students but also institutions and society. Therefore, the aim of this work was to examine and influence the factors that contribute to student withdrawal from introductory chemistry courses in order to promote …

Human Adipose Stem Cell-Derived Small Extracellular Vesicles Modulate Glial Cell Response In Aged And Young Tbi Mouse Models, Salma S. Abdelmaboud

USF Tampa Graduate Theses and Dissertations

Traumatic brain injury (TBI) is a leading cause of long-term neurological impairment, with aging significantly increasing vulnerability and worsening outcomes. Older individuals experience greater cognitive and motor deficits after TBI and often show diminished responses to therapeutic interventions. Both aging and TBI independently promote heightened neuroinflammation and cognitive dysfunction, increasing susceptibility to poor recovery. This study investigated the therapeutic potential of small extracellular vesicles (sEVs) derived from human adipose-derived stem cells (hASCs) to promote neurological recovery and modulate neuroinflammation in a mouse model of TBI. Male C57BL/6 mice aged 3, 15, and 20 months underwent controlled cortical impact (CCI) and …

A Multidimensional Perspective Of Patterns Of Functioning And Well-Being, Lendi Nicole Joy

USF Tampa Graduate Theses and Dissertations

The Center for Behavioral Health Statistics and Quality estimates that 79.4% of U.S. adults will remain free from mental illness each year, but this does not necessarily mean they will enjoy positive psychological health and well-being. Well-being has been associated with positive outcomes such as greater health, longevity, work productivity, and increased social engagement. Thus, it is important for researchers to understand factors contributing to the development of well-being and optimal functioning. The current study used latent profile analysis to classify individuals based on their levels of well-being at ages 23 to 26 years and explored functioning indexes assessed when …

Analyses Of Morphological Effects Of Cryopreservation On Plasmodium Yoelii Sporozoites, Lauren J. Topley

USF Tampa Graduate Theses and Dissertations

Malaria is a vector-borne disease and is a major global public health threat caused by the genus Plasmodium. Of the five species that infected humans, Plasmodium vivax and Plasmodium falciparum contribute the highest rates of morbidity and mortality. Research efforts to develop antimalarial drugs and effective vaccines is imperative to the prevention of future cases. Plasmodium has three reproductive stages: sporogonic, liver, and blood. Sporozoites are injected into the human host from an infected female Anopheles mosquito, which travel to the liver to initiate liver stage malaria. Since few sporozoites are successful, the liver stage is a bottleneck of the …

He’S The Kid That No One Wanted: An Autoethnographic Examination Of Preschool Suspensions And Expulsions From A Mother’S Lens, Lisa M. Smith

USF Tampa Graduate Theses and Dissertations

This autoethnographic research examines the personal and professional journey of advocating against preschool suspensions and expulsions through the lens of a Black mother. Titled He’s The Kid That No One Wanted: An Autoethnographic Examination of Preschool Suspensions and Expulsions from a Mother’s Lens, " it dives into the complicated challenges faced while confronting exclusionary disciplinary practices in early childhood education. This research aims to illuminate the societal and institutional roadblocks encountered when navigating systems of power and to explore the impact of these challenges on both personal identity and professional advocacy. Using a blend of social media artifacts and memory …

Concentration And Composition Of Organic Contaminants In Blackfin Tuna, Yellowfin Tuna, And The Common Clubhook Squid In The Western Gulf Of Mexico, Lisa Rose-Mann

USF Tampa Graduate Theses and Dissertations

Cephalopods are an important component of pelagic food webs. They play ecological roles not only as predators but also as prey. However, their role as prey in the trophic transfer of organic contaminants to apex predators such as tunas in the Gulf of Mexico (GoM) is not well known. To investigate the importance of cephalopods in tuna diets, stomach samples were collected in February 2020 from tunas caught by rod and reel aboard the F/V Gulf Eagle near two large offshore floating oil/gas platforms in the northwestern GoM. Cephalopod samples were obtained from gut content analysis of 41 tunas caught …

Edge-Streamer: A Lightweight, Self-Supervised Event Segmentation Model, Lucas Miller

USF Tampa Graduate Theses and Dissertations

Event segmentation is the practice of autonomously detecting the boundaries of semantically connected sequences of actions within a video. It is connected to many areas of computer vision, including action recognition and event understanding. Nearly all current work requires the entire video to be stored in memory to be processed in multiple passes. This takes up valuable resources, increases processing time, prevents the use of low-power, low-memory devices, and precludes long-form content and live videos from undergoing event segmentation.

This thesis introduces EDGE-STREAMER, a real-time, lightweight, self-supervised, transformer architecture capable of performing event segmentation in a single pass. EDGE-STREAMER uses …

Conflicting Social Information And Its Impact On Sentence Comprehension In Young Adults With Dld: An Eye Tracking Study, Ansley Davis

USF Tampa Graduate Theses and Dissertations

Individuals must recognize linguistic and non-linguistic social cues to resolve contextual ambiguities in their conversations. When the linguistic and social cues match, sentence processing is facilitated. However, conflicts between linguistic and social stimuli (i.e., incongruency) can lead to prediction errors which slow sentence processing. Limited research has explored the social cognition conflict resolution skills in individuals with Developmental Language Disorder (DLD) despite their documented emotion processing deficits. This study considers the role of social prediction processing in adults with DLD as they engage in a social cognition conflict resolution task.

Young adults with DLD (n=29) and typically developing (TD) peers …

Gender Representation Of Composers In Recommended Wind Band Literature And Prominent Performances, Devon Alexis Gray Porter

USF Tampa Graduate Theses and Dissertations

The purpose of this research was to evaluate gender representation in recommended literature in wind band repertoire and prominent performances. I collected data from music lists approved by the National Band Association (NBA) state chapters, programs from the Midwest Clinic and College Band Directors National Association, music vendor catalogues, the Teaching Music Through Performance in Band series, and Florida Bandmasters Association (FBA) Music Performance Assessment (MPA) past performances. I evaluated names of composers to determine the male-female ratios and quantities for recommended works from these sources. I conducted further analysis to determine if trends existed in the relationships between composer …

Managing/Negotiating The Unexpected: Principals’ Sensemaking Of A School Reopening Policy During A Crisis, The Covid-19 Pandemic, Andrea O'Sullivan

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to investigate high school principals’ Sensemaking of a school reopening policy during the COVID-19 pandemic. I inquired about four high school Principals, in the State of Florida, made sense of an Executive Order to reopen schools during a pandemic. As method, I applied Weick (1995) interpretivist framework of Sensemaking as reconceptualized by Coetzee & Wilkinson (2020), as both a theoretical and an analytic framework for a priori analysis. Weick (1995) included seven guiding principles of identity, retrospect, ongoing, enactments, social, extracted cues, and plausibility. Coetzee and Wilkinson (2020) emphasize an eighth principle of reflection …

Beyond The Hype: The Fundamental Challenges Of Machine Learning-Based Android Malware Detection In Cybersecurity, Guojun Liu

USF Tampa Graduate Theses and Dissertations

Machine learning (ML) algorithms have achieved remarkable success across various domains, including cybersecurity. Inspired by these advancements, the academic security community has explored numerous ML-based approaches for Android malware detection. While ML holds significant promise in this domain, its practical deployment faces substantial challenges, including data collection, feature selection, app representation across different models, performance instability across datasets, and inherent limitations of learning-based malware detection. These challenges can lead to overly optimistic detection results and weaken the reliability of malware detection frameworks.

Android malware detection has been extensively studied using both traditional ML and deep learning (DL) approaches. Although many …

Phosphorus: From The Origins Of Life To The Origin Of An Industry, Joshua Abbatiello

USF Tampa Graduate Theses and Dissertations

The element phosphorus is a key biogenic element that is often the limiting reagent for life. Phosphorus is quickly bound by metal divalent cations making it virtually insoluble and inert in water (forming the phosphate mineral apatite). Due to this, it becomes imperative to understand alternative pathways to increase biogenically available phosphorus in environments. To that end, this dissertation involved examining olivine as an alternative source of phosphorus to apatite, analyzing a novel grain of iron silicide found via lightning reduction in a fulgurite, and finally sought to understand the impact of phosphate mining through phosphogypsum stacks. Olivine is a …

Beyond The Gray Ghost: John S. Mosby And The Power Of Legend, Kevin R. Youngberg

USF Tampa Graduate Theses and Dissertations

Civil War generals are among the most celebrated figures of their time. In the post-Civil war era, many of these officers retreated to farms, and businesses and disappeared into obscurity. This was not the case with Colonel John Singleton Mosby, who quickly transformed into a figure whose legacy from the Civil war gave him a unique place in the American imagination as the legendary Gray Ghost of the Shenandoah Valley of Virginia. He lived until 1916, a remarkable fifty years filling those decades with a host of accomplishments in public service both at home and abroad. His legacy is complex, …

Corrosion Mitigation And Monitoring Of Bridge Tendons And Failure Forecasting Of Wastewater Force Mains, Stanley Chike Agbakansi

USF Tampa Graduate Theses and Dissertations

Corrosion remains a significant threat to civil infrastructure, resulting in costly repairsand potential structural failures. This dissertation addresses three critical aspects of corrosion: mitigation and monitoring of post-tensioned bridge tendons, and failure forecasting of wastewater force mains due to internal corrosion.

First, the research investigates the effectiveness of corrosion inhibitors (CIs) applied via pressure injection (impregnation) in post-tensioned tendons. The protective mechanisms and long-term performance of various inhibitors were evaluated to identify the most effective formulations. Among the tested inhibitors, MCI-2020 — a water-based, migratory, mixed-type corrosion inhibitor — demonstrated the most promising results, showing excellent corrosion protection while preserving …

An Exploratory Analysis Of Automated Deception Detection For Mental Health Applications, Sayde Leya King

USF Tampa Graduate Theses and Dissertations

Deception in mental health settings can undermine therapeutic relationships, compromise treatment efficacy, and impact patient outcomes. Yet, research shows that mental health clinicians often perform no better than chance at detecting deceptive behavior in therapy. Automated deception detection, leveraging artificial intelligence (AI) and multimodal behavioral cues—such as eye gaze, body gestures, and facial expressions—offers a promising alternative. However, most existing research focuses on high-stakes legal contexts, limiting its applicability to mental health settings.

This dissertation addresses this gap by pursuing three key research objectives using a mixed-methods approach. First, we investigate mental health clinicians’ perspectives on AI-assisted deception detection through …

Digital Resistance And The Political Economy Of Authoritarian Decline And Economic Liberalization In Ethiopia, Anaol Dalle

USF Tampa Graduate Theses and Dissertations

This dissertation aims to examine the impact increased consumption of digital technologies, like social media and the internet, has on the stability and autonomy of low-capacity authoritarian countries. By using Ethiopia (2015-2021) as a case study, the dissertation argues that the sudden adoption and proliferation of digital platforms serves as an exogenous shock that pushes the state into a critical juncture that unravels institutional equilibria and transforms domestic incentive structures and institutions. This creates a power vacuum, which triggers a period of intense, and often violent, competition between elite groups, significantly destabilizing the state. In the absence of a cohesive …

Learning Analytics: An Innovative Technological Tool To Help Increase Student Retention And Graduation Rates In Us Higher Education Institutions, Fednold Thelisdort

USF Tampa Graduate Theses and Dissertations

Higher education institutions (HEIs) have embarked on a journey of innovation by adopting learning analytics (LA) in their operation, offering a more sustainable and innovative technological tool to increase student retention and graduation rates in US HEIs. LA, an emerging academic and technological tool, equips HEIs to gather, analyze, and interpret their students’ data. Since the publication of the first (conceptual) framework by Burke (2019), LA has matured into a research focus and practice, implemented in several institutional contexts at different scales and disciplinary/pedagogical contexts. This study explored the impact of the use of LA on student retention and graduation …

Physical Activity And Functional Mobility In Adults With Hearing Loss: A Series Of Embedded Studies Within A 6-Month Clinical Trial With Hearing Aids, Sarah L. Bochat

USF Tampa Graduate Theses and Dissertations

Adults with hearing loss engage in low levels of physical activity and demonstrate poor performance on measures of functional mobility. The impact of hearing rehabilitation on these outcomes is not fully understood. Previous investigations were largely quantitative and focused on older adults ≥ 65 years of age who may respond differently to hearing intervention than relatively younger adults. They also tended to focus on exercise rather than global engagement in physical activities and did not report hours of hearing aid use, an important indicator of intervention success. One purpose of this dissertation was to determine the feasibility of collecting accelerometry-assessed …

Room-Temperature Multiferroic Epsilon Iron Oxide Semiconductors: Thin-Film Growth And Characterization, Derick Detellem

USF Tampa Graduate Theses and Dissertations

There is an ever-growing need for larger computing power, nonvolatile memory and energy efficient devices as the number of applications that draw upon the current base of computer resources increases. At the forefront of research aiming to meet this need is the field of multiferroics. If it is possible to leverage the fast and energy efficient application of an electric field with the data storage capabilities of magnetic materials, then it would be possible to not only increase the robustness and energy efficiency of current memory, but possibly present new types of device components for computation application as well. Currently, …

Changes In Immune-Regulated Gene Methylation Over Time In Women Who Do And Do Not Develop Breast Cancer, Kyle Laney

USF Tampa Graduate Theses and Dissertations

Breast cancer survivors face elevated risks of chronic inflammatory conditions and immunedysfunction compared to the general population. These elevated health risks in survivors are well-documented but mechanistically poorly understood. This study aimed to characterize longitudinal changes in DNA methylation patterns of immune-regulatory genes in women who developed breast cancer compared to cancer-free controls. We conducted an EWAS using Sister Study cohort data, analyzing longitudinal changes in DNA methylation by comparing the difference in beta values between pre- and post-diagnosis time points in breast cancer cases versus changes over the same period in cancer-free controls. The analysis included 414 participants: 189 …

Applications Of Contracting Self-Similar Groups To Cryptography And Scale Groups, Arsalan Akram Malik

USF Tampa Graduate Theses and Dissertations

Given their peculiar properties, self-similar groups are of great interest both from applications and theoretical standpoints. In this work we study the scope of their applications in post-quantum cryptography and in constructing scale groups via lifting maps.

We propose self-similar contracting groups as a platform for cryptographic schemes based on simultaneous conjugacy search problem (SCSP). This class of groups admits fast polynomial-time algorithms for the word problem and element multiplication that can be used for effective encryption and decryption of messages. It contains extraordinary examples like the Grigorchuk group, which is known to be non-linear, thus making some of existing …

Healthy Bodies, Moral Minds, And Rural Ideals: Contextualizing Interwar British Childhood And Citizenship Through Children's Country Holidays Fund Vacations, Paula J. Pack

USF Tampa Graduate Theses and Dissertations

This dissertation uses the Children’s Country Holidays Fund (CCHF) as a critical lens to examine how philanthropy, childhood, class, public health, and rural nostalgia intersected within the broader context of citizen formation in interwar Britain. Founded in 1884 to provide country holidays for poor London schoolchildren, the CCHF evolved from a philanthropic response to Victorian slum life into an informal arm of welfare governance by the end of the interwar period. Through its country holidays, the Fund became an active participant in shaping ideals of health, morality, and civic responsibility in a period marked by heightened concern over national vitality …

Affirmation And Aspiration: Black Women Enrolled In Doctoral Programs At A Pwi Striving For The Tenure-Track, Anayah Alicia Walker

USF Tampa Graduate Theses and Dissertations

Black women remain vastly underrepresented in tenure-track positions at research universities in the United States, facing systemic barriers that hinder their academic progression. This study examines the experiences and strategies that contribute to Black women’s preparation for tenure-track positions while enrolled in doctoral programs at a predominantly white institution. Grounded in Black feminist thought coupled with an appreciative inquiry lens, this study utilized the sista circle methodology to capture the narratives of seven Black women from various academic disciplines. Findings revealed three experiences that contribute to Black women’s preparation for tenure track positions: intrinsic motivation, funding and institutional resources, and …

Democracy, Expertise, And The Disinformation Problem, Richard Randall Frohock Iv

USF Tampa Graduate Theses and Dissertations

Experts are an essential part of our social epistemology. They grant us access to knowledge that would otherwise be inaccessible. Because of this, experts are also typically seen as invaluable political contributors. Without expert contributions, public policy risks being ill-informed and therefore incapable of addressing society’s needs. Recently, however, the extent to which expertise should inform public policy has come into question. Fueled largely by disinformation, there is a growing movement against traditional experts. Those within this movement argue that experts have overstepped their bounds and are working against the societies they are meant to be helping. Fearing that that …

Which Adolescents Benefit Most From Positive Psychology Interventions: Examining The Common Factors Of Therapeutic Change, Nicolette Bauermeister

USF Tampa Graduate Theses and Dissertations

The literature has found positive psychology interventions to be effective at improving the subjective well-being of youth (Tejada-Gallardo et al., 2020). Further research is needed to identify variables such as common factors of change that could be contributing to whether youth report improved outcomes after participating in a positive psychology intervention. This study examined common factors of therapeutic change as predictors for outcomes such as positive affect, negative affect, and life satisfaction, which are components of subjective well-being. This dissertation aimed to fill the gap in the literature regarding common factors of change as predictors of outcomes in school-based positive …

Algorithms Of Eversion: Contemporary States And Digital Sovereigns, James Libengood

USF Tampa Graduate Theses and Dissertations

The rapid development of artificial intelligence (AI), the internet of things (IoT), and digitization have pushed digital sovereignty to the top of the governance agenda in the 21st century. This notion is expanded upon in this work through seven chapters encompassing theoretical underpinnings, methodological frameworks, and real-world case studies. It shows how multinational corporations dominate digital coloniality, and how the merge of physical and digital reality or eversion poses challenges. The study compares contrasting governance approaches, such as the European Union’s General Data Protection Regulation (GDPR), geared to ethical AI and data protection, versus BRICS nations’ stance on data localization …

The Only Constant Is Change: The Role Of Genetic Diversification In Cancer And Beyond, Malgorzata Tyczynska Weh

USF Tampa Graduate Theses and Dissertations

Genetic diversification, the process by which genetic variation arises in a population, is fundamental to evolution by natural selection. Mutation, a central diversification process, fuels adaptation across species, including in cancer. Yet most new mutations are neutral or deleterious on cell fitness, raising the question of how mutation-driven adaptation persists. To explore this paradox, I developed a spatial agent-based model (ABM) in which population fitness emerges from individual cells acquiring mutations at varied rates and with diverse fitness effects. I evaluated model behavior across adaptive states, mutation rates, and distributions of fitness effects. The results show that high mutation rates …

Exploring Culturally Responsive Literacy Practices In Prekindergarten: A Multimodal Approach By Teachers, Deeksha Thonta Aradhya

USF Tampa Graduate Theses and Dissertations

Children from culturally and ethnically diverse backgrounds are often expected to learn within different cultural contexts than those they have experienced in their families, homes, and communities. Some children are rarely exposed to the dominant culture and practices that are highly valued in schools before entering early education settings. When they start (pre)school, young children are often expected to immediately participate in cultural practices that may differ from those at home, which are considered indicative of being successful, ready, or capable. This research aimed to investigate the culturally responsive literacy practices used by teachers in a laboratory prekindergarten classroom. The …