Comparative Biomechanics: Blattodea Antennal Morphology And Physiology, Lucas W. Marsh

All Theses

Equipped with muscle-free antennae, many insects can twist and bend their antennae on demand. We hypothesized that hemolymph circulating through the antennae provides pressure that facilitates twisting and bending and provides a feedback control channel for tactile sensing in insects. To test this hypothesis, we conducted a thorough morphological and physiological analysis of antennae in three Clades of Blattodea. We studied morphology by evaluating the distinguishable features of the body and antenna, as well as the internal structure of the antennal lumen. Then, in a series of experiments on live cockroaches, we measured blood pressure along the antenna. This was …

Scrolling For Support: Social Media Use, Health Information Seeking, And Social Support In Individuals With Type 1 Diabetes, Loren Myers

All Theses

Type 1 diabetes (T1D) is a lifelong chronic illness that is rapidly increasing in prevalence. Continuous treatment is necessary for proper management, but barriers to care can cause some to turn to other sources for health-related information, like social media. Given the limited research on social media use and health information seeking behaviors in people with T1D, this study aims to gain an understanding of how people with T1D use social media, where they get their health information, and how social support is related to social media behaviors among people with T1D. Adult T1D participants completed an online survey that …

Anxiety And Intuitive Eating: Examining Dispositional Mindfulness As A Protective Factor, Jordan Signorelli

All Theses

Intuitive eating (IE) is an anti-diet approach focused on listening to internal hunger and fullness cues and is associated with reduced disordered eating patterns and improved dietary intake. However, anxiety negatively impacts IE. Dispositional mindfulness (DM) – one’s innate, present-centered, nonjudgmental awareness of thoughts, emotions, and bodily sensations – is associated with lower anxiety and greater IE. Yet, whether DM mitigates the negative impact of anxiety on IE remains underexplored. Grounded in the Cognitive Behavioral Therapy Framework, this study aimed to: 1) examine the relationship between anxiety and IE, 2) examine the relationship between DM and IE, 3) examine whether …

Addressing Medical Mistrust Among Women: Effects Of Narratives Acknowledging Mistrust On Identification, Credibility, And Persuasive Outcomes, Kylie A. Friday

All Theses

This study examines the effectiveness of narratives addressing medical mistrust in addressing medical mistrust and promoting preventive sexual health behaviors among women. Drawing on narrative persuasion frameworks, this research investigates how tailoring to aspects of medical mistrust influences identification, transportation, credibility, emotions, and persuasive outcomes. Particular attention is given to the role of medical mistrust as a key audience characteristic that may influence how individuals engage with and interpret health messages. By considering both emotional and cognitive mechanisms of persuasion, this study advances a more nuanced understanding of how narratives may function differently across audiences with varying levels of trust …

I Am The Perfect Wife: The Bildungsroman And The Disruption Of The System In Jane Eyre And The Hunger Games, Carolyn Carpenter

All Theses

None.

The Development And Evaluation Of A Group Therapy Program For Perinatal Loss In Rural Appalachia, Hope O'Neill

Electronic Theses and Dissertations

Perinatal loss can have vast adverse psychological consequences and has limited psychotherapeutic options to assist with those outcomes. Currently, there is no gold standard psychotherapy for the treatment of perinatal grief. Group therapy has proven to be an effective modality for various populations and has been shown to be beneficial for perinatal loss and the subsequent psychological outcomes. This study utilized a previously conducted systematic review to develop and evaluate a group psychotherapy for perinatal loss. The ten sessions of the group were completed by two participants and several constructs were explored pre- and post-intervention: grief, depression, anxiety, post-traumatic stress, …

“Better Late Than Never” – Exploring The Challenges And Triumphs From Late-Diagnosed Autistic Women, Angela C. Altomare

Electronic Theses and Dissertations

The diagnostic process for adult autistic women is a transformative experience that reshapes identity, their histories, and self-understandings. This study examines the impact of a late-in-life autism diagnoses on women through the examination of narratives from the Reddit community r/AutismInWomen, and autoethnography.

Drawing on personal experience as a late-diagnosed autistic researcher, and the shared stories within r/AutismInWomen, the research demonstrates the challenges experienced, such as navigating stigma, negotiating identity, and seeking support.

The research reveals that online platforms serve as critical spaces for stigma negotiation, identity validation, self-advocacy, and community building among autistic women. Furthermore, these narratives underscore …

On The Paleontology Of Belize, Alson Ovando

Electronic Theses and Dissertations

Paleontology can be considered an underrepresented and emerging area of science in Belize. A primary aim of this thesis is to provide a background of paleontology in Belize and present the first comprehensive study of Quaternary vertebrate fossils known from the country. Quaternary fossil sites across Belize include caves, rivers, and sinkholes. In addition to reviewing and assessing material from known sites, this thesis presents new information and discoveries that were made while investigating Belize’s Quaternary fossil record. This thesis also includes a geospatial model depicting ecoregions in Belize during the last glacial maximum. Overall, the results presented here demonstrate …

Academic Self-Efficacy Of Black, White, And Hispanic Students Pursuing Professional Education Degrees And Licensure At An Hbcu In Midwest Ohio, Nathan Boles

Electronic Theses and Dissertations

The purpose of this comparative quantitative study was to determine, using three self-efficacy scales, General Self-Efficacy (GSE), Academic Self-Efficacy (ASE), and Educational Self-Efficacy (ESE), the differences in academic and educational self-efficacy among Black, White, and Hispanic students seeking a Professional Education degree and licensure at a Historically Black College and University in Midwest Ohio. Pre-service students’ self-efficacy and goal commitment can affect their likelihood of graduating with a license and may directly affect the number of novice teachers of color in the classroom. The literature examines factors that disrupt students’ self-efficacy, academic confidence, and persistence through the theoretical frameworks of …

Stochastic Universal Differential Equations For Epidemiological Modeling: Uncertainty Quantification In Disease Transmission Dynamics, Alice Menaya Armah-Bonney

Electronic Theses and Dissertations

Epidemic forecasting requires not only predictions of expected case counts, but also quantification of uncertainty, although existing surrogate modeling frameworks for agent-based models remain fundamentally deterministic. In this thesis a Stochastic Universal Differential Equation framework is presented that extends the deterministic Universal Differential Equation approach by incorporating a learnable stochastic diffusion term, enabling calibrated probabilistic forecasts while preserving the mechanistic interpretability and computational efficiency of the deterministic baseline. In doing so, a two-phase training algorithm is introduced to ensure stable convergence and the framework is validated against the ensemble output from ExaEpi, an exascale agent-based model of a COVID-19 outbreak …

Leaving College In Rural Central Appalachia: A Hermeneutic Phenomenological Study Of Lived Experience And Meaning-Making, Amanda Sawyers

Electronic Theses and Dissertations

This hermeneutic phenomenological study explored how individuals raised primarily in rural Central Appalachian communities interpret and make meaning of their decision to engage in college departure prior to degree completion. The study examined college departure as a lived experience shaped by family obligations, cultural identity, and rural structural conditions. Ten semi-structured interviews were conducted with participants from West Virginia, Eastern Kentucky, Southwest Virginia, East Tennessee, and Western North Carolina who had enrolled in higher education but did not complete a degree. The main research question was: How do rural Central Appalachian residents interpret their college departure? Hermeneutic phenomenological thematic analysis …

Perceptions Of Effective Co-Teaching Partnerships In High School Inclusive Classrooms, Korri-Lee S. Wood

Electronic Theses and Dissertations

The purpose of this qualitative study was to examine the characteristics and contextual factors that general education and special education teachers perceive as essential for effective co-teaching partnerships in high school inclusive classrooms. The study, which involved in-depth interviews with general and special education teachers in co-teaching partnerships, was conducted within a constructivist paradigm to shed light on interpersonal, communicative, and systemic variables that contribute to a positive, productive co-teaching experience. Purposeful sampling was employed to select general and special education teachers who were part of co-teaching partnerships. Thematic analysis was used to analyze data from semi-structured interviews, and an …

Attendance Matters: Incentive Programs And Chronic Absenteeism In Elementary Schools, Aubryn Street

Electronic Theses and Dissertations

Chronic absenteeism is a common challenge in elementary education. Schools often use attendance incentive programs, such as rewards or recognition, to encourage students to attend regularly. However, it is not always clear whether these programs actually improve attendance. This study examined whether attendance incentive programs are effective and how school staff view and use these programs.

This mixed-methods study used both school attendance data and interviews with school personnel. Attendance data from two school years showed that schools with incentive programs did not have lower absenteeism rates than schools without them. However, attendance improved overall from one year to the …

University Student Mental Health: Service Utilization, Equity Gaps, And Strategies To Improve Access, Richard Mutua Kilonzo

Electronic Theses and Dissertations

Student mental health and access to care are pressing concerns in higher education. This study assesses mental health outcomes and access to campus mental health services at East Tennessee State University. Survey data from the 2023–2024 Healthy Minds Study were analyzed to report the prevalence of depression, anxiety, and suicidal ideation across the student population. The study evaluates disparities in these outcomes and barriers to care across student groups, with particular attention to equity-impacted students, especially sexual and gender minority students.

Findings indicate widespread psychological distress alongside persistent barriers, including long wait times, limited-service availability, and stigma-related concerns. These barriers …

Bergsonian Blend: Subjective Temporality Within Modernist Aesthetics Of Mental Illness, Lydia Victoria Gervais

Electronic Theses and Dissertations

Henri Bergson was a modernist French philosopher who wrote extensively on the topic of the lived experience of time, which he called durée, or duration. His contemporary, Sigmund Freud, was developing psychoanalytic theory in a growing field of psychological study, which serves as a prominent ancestor to modern psychiatry and current psychoanalytical literary studies. Fiction writers of the 1900s absorbed the zeitgeist of melded chronology and consciousness, interweaving themes of time and trauma in their works. Utilizing Henri Bergson’s durée as a philosophical framework, I examine the moralization of time-consciousness in connection with mental illness and investigate representations of …

On The Algebraicity Of The Tic-Tac-Toe Matroid And Homogeneous Mixed Bowtie Systems, Benjamin R. Allen

Electronic Theses and Dissertations

This thesis is presented in two parts. First, we explore whether the class of algebraic matroids is closed under duality, a decades-old open question. We consider the Tic-Tac-Toe matroid as a potential candidate to answer the open question. The Tic-Tac-Toe matroid is known to satisfy many of the necessary conditions for a matroid to be algebraic and has a non-algebraic dual.  Second, we focus on decompositions of the complete mixed graph into mixed bowties. A complete mixed graph has between every pair of vertices an undirected edge and antiparallel arcs. A mixed bowtie is a graph consisting of two 3-cycles …

Malnutrition And Frailty Risk Among Community Dwelling Older Adults In Northeast Tennessee, Shreeyesha Pradhan

Electronic Theses and Dissertations

Frailty and malnutrition are prevalent conditions among community-dwelling older adults, affecting approximately 10% and 25% of this population, respectively. Despite overlapping symptoms such as functional decline, their relationship remains underexplored in community dwelling older adults. This cross-sectional feasibility study examined the association between frailty and nutritional status among 47 older adults in the East Tennessee Tri-Cities area using the Fried’s Frailty Phenotype (FFP) and the Mini Nutritional Assessment-Long Form (MNA-LF®). Results indicated 13% were pre-frail, 24% were frail, 21% were at risk for malnutrition, and 2% were malnourished. Regression analyses revealed that self-perceived nutritional status (37.6%), daily meal frequency (29.0%), …

Addressing Substance Use Disorder In Rural Appalachia: Improving Access And Treatment Outcomes For Justice-Involved Individuals, Jessica Muldowney

Electronic Theses and Dissertations

Background: Opioid use disorder (OUD) represents a critical public health crisis disproportionately affecting justice-involved (JI) populations, with approximately 65% of incarcerated individuals having substance use disorders (James & Beatty, 2006). Rural Appalachian communities face compounded challenges due to limited healthcare access, provider shortages, and cultural stigma surrounding addiction treatment. Despite evidence demonstrating that medication-assisted treatment (MAT) reduces recidivism and overdose deaths, only 20% of correctional facilities offer these services (Klein & Seppala, 2019).

Objective: This mixed-methods study evaluated organizational readiness and infrastructure capacity for implementing evidence-based OUD interventions, specifically MAT programs across three rural counties in northwestern North Carolina.

Methods: …

Feasibility Of Assessing Dietary Patterns And Anxiety In College Students: A Pilot Study Using Nutrition Questionnaires, Gad-7, And Asq, Kylie Ford

Electronic Theses and Dissertations

Anxiety is highly prevalent among college students representing a significant public health concern. Research indicates that dietary patterns may influence mental health outcomes; however, the practicality of collecting comprehensive dietary and psychological data in college populations remains unclear. This pilot study assessed the feasibility of evaluating dietary patterns and anxiety using self-report instruments. Participants completed the Nutrition and Eating Habit questionnaire, the Generalized Anxiety Disorder-7 (GAD-7), and the Anxiety Sensitivity Questionnaire (ASQ). Although twenty-one students were recruited, survey completion rates were low, with only seven participants completing the nutrition questionnaire necessary to calculate the Dietary Inflammatory Index (DII). Descriptive analyses …

Ethical Engagement In Global Missions: A Qualitative Inquiry Into Planner Motivations And Host Experiences, Harrison J. Ihrig

Electronic Theses and Dissertations

Short-term mission (STM) trips are limited duration service experiences, commonly organized by faith-based organizations (FBO), in which volunteers travel domestically or international to provide ministry, community outreach, and/or health-related services. In recent decades, the number of these trips organized by organizations in the United States has increased exponentially, but the phenomenon is difficult to accurately measure due to its decentralized nature and the lack of standardized terminology. Despite their prominence, limited research has been conducted to examine planning, implementation, and evaluation processes of international STMs organized by FBO, particularly through a public health lens. The purpose of this study was …

Extreme Precipitation Events And Population Exposure: Site Recommendations For The Future Tennessee Mesonet, Victoria G. Redlund

Electronic Theses and Dissertations

This study examines frequency of and population exposure to extreme rainfall events in Tennessee to guide the placement of future mesonet weather stations. Using 1991-2021 daily nClimGrid precipitation records, extreme events were defined as events of rainfall ≥50 mm. These events were collated on an annual scale and normalized alongside square-root-scaled population densities derived from Landscan to develop extreme rainfall vulnerability maps. Results highlight where extreme rainfall is most frequent relative to population densities in each county. The findings were compared with models of mesonet suitability and feasibility to determine how meteorological needs correlate with siting needs such as land …

Ontogeny And The Effects Of Perinatal Stress In The First Immature Skeleton Of Teleoceras Aepysoma (Perissodactyla, Rhinocerotidae), Joe Gajewski

Electronic Theses and Dissertations

Recovery of an immature fossil rhinoceros (Teleoceras aepysoma) skeleton (ETMNH 32999) from the Gray Fossil Site in Tennessee offers the first insights into the ontogeny of the species. ETMNH 32999 is interpreted to be a subadult male in an age class equivalent to ~17-20% of potential lifespan. Comparative analyses support the hypothesis that subadults of related taxa are typically ~91% of average adult size in most dimensions. However, certain cranial dimensions are substantially lower than expected in ETMNH 32999, averaging only ~74% of the average conspecific adult. Such departure from typical growth rates is suggested to be attributable …

Utilizing Physics Informed Neural Networks For Disrupted Signal Dynamics, Nicholas J. Joyner

Electronic Theses and Dissertations

Physics-informed neural networks (PINNs) have been used in many applications including engineering and physical sciences. PINNs allow the incorporation of a priori understanding of a process’ structure into the modeling. We attempt to leverage the PINN structure toward the evaluation of disruptions to classical dynamical models by combining elements of ordinary differential equations into our loss function with sigmoidal gating to balance the penalties for deviations from the data with those for structural deviations. This enables the identification of the signal structure and the limits of disruption influence. As a use case, we consider stock value from 2019-2021, which expresses …

The Influence Of Intervention Strategies On Students With Disabilities Who Exhibit Challenging Behaviors In Rural Public Schools: Teacher Perceptions, Ben B. Robertson

Electronic Theses and Dissertations

This phenomenological qualitative study addressed rural teachers' perceptions of the influence of intervention strategies on students with disabilities who exhibit challenging behaviors. The purpose of this study was to examine teachers’ perceptions of the effect of intervention strategies on academic achievement, student behavior outcomes, and teacher self-efficacy through the lens of Bandura’s Social Cognitive Theory. This theory is a complex, dynamic interaction among people, their behaviors, and their environments. Data collection included 14 individual interviews, conducted on Zoom with educators from one school district in Southern Virginia, including seven general education teachers and seven special education teachers. Data analysis strategies …

Machine-Learning Landslide Susceptibility And Runout Modeling In The Nolichucky River Gorge After Hurricane Helene, Grace Braver

Electronic Theses and Dissertations

Extreme rainfall from Hurricane Helene (September 2024) triggered widespread landslides across the southern Appalachian region, highlighting the need for rapid landslide susceptibility assessments that capture both landslide initiation and downstream runout. Traditional susceptibility models often focus solely on initiation zones, limiting their ability to identify which slopes will generate destructive landslides or where material will travel. This study addresses that gap by (1) integrating Geographic Information System (GIS)-based machine learning susceptibility modeling using ArcGIS Pro: Maximum Entropy (MaxEnt) and Random Forest-Based and Boosted Classification and Regression (FBBC) and (2) the U.S. Geological Survey (USGS) Grfin (Growth, Flow, and Inundation) runout …

Media Portrayal Of High-Profile Female Victims Of Sexual Harassment, Chinenye Nwaneri

Electronic Theses and Dissertations

This rhetorical study investigated how the Nigerian media portray high-profile female victims of sexual harassment. The research was undertaken in response to concerns that media narratives often reinforce gender stereotypes and influence public perceptions of victims. Focusing on the sexual harassment allegations made by senator Natasha Akpoti-Uduaghan against Senate president Godswill Akpabio, the study analyzed newspaper coverage from Daily Trust and Vanguard between February and December 2025. Using Critical Discourse Analysis within the framework of Feminist Media Theory, the research examined how language and framing shaped the representation of the female accuser. The findings reveal that media coverage constructed the …

Perceptions Of Rural School Resource Officers On Training, Roles, And Interactions With Students In Special Populations, Mary Jane M. Allen

Electronic Theses and Dissertations

This qualitative inductive study was conducted with rural school districts located in the Middle Grand Division of Tennessee. School Resource Officers' (SROs) and K–12 school administrators’ perceptions of their roles were assessed. Perceptions of school policing from both samples were assessed regarding SRO training, roles, and expectations for working with school law enforcement officials. This also included respondents' views on how students with disabilities are treated. The research conducted in rural Middle Tennessee counties examined SROs’ and K–12 administrators’ perceptions through data collected from in-depth open-ended interviews and a pre-written analysis. The proliferation of police officers assigned to schools beginning …

Structured Representation Learning For Generalizable Deepfake Video Detection, Maowen Tang

All Theses

Deepfake video detection has become an important problem in multimedia forensics as modern generative models produce increasingly realistic facial manipulations. Although many existing detectors achieve strong performance on the datasets on which they are trained, their performance often degrades substantially on unseen manipulation methods and evaluation conditions. A major reason for this limitation is the premature collapse of spatial structure: many vision transformer based detectors aggregate patch tokens into a single global representation, thereby suppressing the localized and temporally uneven forensic cues that characterize manipulated video.

This thesis presents the Spatio-Temporal Slot Aggregation Network (ST-SAN), a video-level deepfake detection framework …

Bitcoin Options Risk-Reversal Predictability, Meng Hwee Neo

Dissertations and Theses Collection (Open Access)

This dissertation examines whether Bitcoin options risk-reversal (RR) spreads predict future Bitcoin returns, using daily Deribit data from April 2021 to December 2025 (1,723 observations).

In the primary 25-delta, 90-day specification, the RR coefficient is significant at the 1% level in a thirteen-variable baseline regression with Newey–West standard errors. Robustness tests across all available delta–tenor specifications show statistically significant RR coefficients in the majority of configurations, concentrating in the 30–180-day maturity band.

The butterfly spread (BF) also predicts returns. Both remain significant after controls are added: the RR t-statistic increases from 1.91 (univariate) to 3.73 (full baseline), and the BF …

Research On The Spatial Diffusion Process And Influencing Factors Of Traditional Chinese Medicine Brands: Evidence From Beijing Tong Ren Tang, Yuehua Shen

Dissertations and Theses Collection (Open Access)

Against the backdrop of the dual drivers of the revitalization and development of traditional Chinese medicine (TCM) and the rising demand for health-related consumption, the nationwide expansion of TCM chain brands has become a prominent issue of shared concern for both industry and policy circles. However, existing research largely treats cities as mutually independent units and overlooks the spatial externalities arising from geographic proximity. It also implicitly assumes that the driving factors remain stable over a brand's expansion life cycle. This makes it difficult to capture the dynamic evolution of the logic governing store expansion across different stages. Accordingly, this …