Computational Modeling Of Lamina Cribrosa Biomechanics, Lydia Schwartz

Electronic Theses and Dissertations

The lamina cribrosa is a critical structural component of the optic nerve head and is believed to play a central role in the development of glaucoma. Understanding how its geometry and microarchitecture influence the mechanical behavior is essential for improving computational models of the optic nerve head. However, the complex structure of the lamina cribrosa presents a difficult challenge for experimental and computational investigations. In this study, two computational modeling approaches were developed to investigate the influence of structural representation on lamina cribrosa biomechanics. A curvature-based continuum model was used to examine the effects of the anterior surface geometry, parameterized …

Customizable Acoustic Array Processor Using System-On-Chip Device, Aidan Stanford

Electronic Theses and Dissertations

Recently, a number of System-On-Chip (SoC) devices have been released that combine conventional microprocessors with a field-programmable gate array (FPGA) in the same package. While these devices have had success in other scientific fields, there is still much to explore regarding their applications to acoustics. Their flexibility in configuration may prove very useful in cases where upstream audio acquisition hardware must be changed on the fly, or when a scientist may decide to change parameters of their processing task. To explore the application of these devices to acoustic sensing, we investigate the use of a Xilinx SoC device to implement …

Iterative Decoding For Sccpm With Markov And Hidden Markov Sources, Zhijie Guo

Electronic Theses and Dissertations

Continuous Phase Modulation (CPM) is an excellent digital modulation scheme recognized for its constant envelope property, continuous phase transitions, and inherent memory. These characteristics enable excellent spectral and power efficiency, allow compatibility with nonlinear amplifiers, and make CPM particularly attractive for power- and bandwidth-constrained applications such as satellite and deep space communications. Serially Concatenated Continuous Phase Modulation (SCCPM) with iterative decoding further improves error performance, and its flexibility enables it to evolve alongside state-of-the-art channel coding technologies and show significant potential for performance enhancement.

This dissertation investigates SCCPM systems with binary Markov and Hidden Markov Model (HMM) data sources and …

Predicting Future Positions Based On Spatiotemporal Data, Andrew John Heskett

Electronic Theses and Dissertations

This thesis examines how different multi-agent prediction architectures perform when forecasting future player positions in soccer using only ball and player coordinate data, with-out relying on pretrained knowledge of soccer rules or tactical concepts. Spatial positioning is a fundamental part of soccer and is often a defining characteristic of high-level players. However, there is still no fully deterministic method for evaluating how effectively a player uses space. As multi-agent trajectory prediction methods have improved over the last decade, it has become increasingly feasible to develop systems that can analyze and eventually grade player movement. A necessary first step toward that …

The 6th United States Volunteer Infantry: The Last Of The Galvanized Yankees, Seth Ihde

Electronic Theses and Dissertations

This thesis examines the formation, service, post-war life, and impact of the 6th United States Volunteer Infantry Regiment. This regiment and the five preceding it consisted of Confederate POWs who enlisted in the Union Army between 1864 and 1865. The project intersects with a few different historiographies, including Confederate nationalism/dissent and the military’s role in westward expansion. The 6th was formed from soldiers in Camp Douglas, Illinois, Camp Morton, Indiana, and Camp Chase, Ohio. The soldiers were predominantly young and poor southern farmers. These men represent a form of southern dissent to Confederate nationalism and the claims of the Lost …

Physicochemical Interactions At The Ionic Liquid-Polymer-Biological Nanointerface, Sara Xuan Edgecomb

Electronic Theses and Dissertations

Treatment of central nervous systems (CNS) disorders remains a critical challenge in drug delivery. The blood brain barrier (BBB) is an obstacle preventing targeted delivery. Small and large drug molecules are unable to cross the BBB, highly limiting drug therapies. Only invasive techniques and symptom care are currently employed for neurological diseases.

This demands an innovative drug delivery approach to improve efficiency of targeted delivery to the brain, hence polymeric nanoparticles (NPs) being a promising solution. With their advantageous tunability, they can encapsulate various biomolecules and perform specific targeting. Ionic liquids (ILs) have become a novel surface modification of NPs …

Foundations And Scope Of Moral Standing, Vikas Beniwal

Electronic Theses and Dissertations

This thesis investigates the foundational grounds of moral standing. I contend that sentience, while frequently cited as the primary criterion, lacks sufficient justification when asserted as a necessary condition. I propose an alternate feature as sufficient grounds of moral standing.

Branding The Protector And Helper: How The U.S. Army National Guard Presents Itself In Humanitarian Outreach, Aaron Otoo Acromond

Electronic Theses and Dissertations

This study examines how the United States Army National Guard constructs and communicates its humanitarian identity during domestic disaster response through official social media. Addressing limited scholarship on how hybrid military institutions frame their roles in domestic crises, the research applies qualitative content analysis to visual and textual posts from official Facebook and Instagram accounts during three disasters: Hurricane Ian (2022), the Hawaii Wildfires (2023), and Hurricane Helene (2024). The analysis identifies three communication themes: operational preparedness and technical capacity, humanitarian assistance to affected civilians, and collaboration with civilian agencies. These narratives portray the National Guard as a professional and …

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 …

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 …

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 …

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 …

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 …

Rationalizing Atrocity: Vindicatory Careerism And Mass Murder As A Career Path, 1939-1943, Bethany G. Bare

Electronic Theses and Dissertations

This study examines members of the Nazi Schutzstaffel from an occupational perspective, focusing on how professional roles shaped their participation in systematic mass murder. As National Socialism gained influence in interwar Germany, it coincided with the rise of a generation of ambitious and embittered men eager to distinguish themselves. The transition from the T4 Program (1939-1941), the involuntary euthanasia of disabled Germans, to Operation Reinhard (1942-1943), the extermination of Polish Jews, demonstrates how mass murder evolved into a career path, as each of the men examined served as T4 personnel before transferring to Poland to assume positions as extermination camp …

Durable, Distributed Llm Inference On Cots Devices, Brycen E. Dunn

Electronic Theses and Dissertations

The advancement of Large Language Models (LLMs) has fundamentally changed the nature of natural language processing. The substantial memory requirements of frontier models creates a significant barrier to entry, centralizing inference. This thesis presents the design and implementation of a distributed inference framework designed to democratize LLMs by leveraging commodity devices. The framework combines the resources of heterogeneous COTS devices into a unified compute pool, enabling the inference of models exceeding a single device's memory capacity. A novel Task Partitioning Engine (TPE) analyzes model architectures, profiles node capabilities, and supports pipeline and expert parallelism strategies. The primary contribution is a …

A Machine Learning Framework For Early-Stage Cost Estimation Of Transportation Projects, Pritom Paul

Electronic Theses and Dissertations

To address the limitations of traditional planning-level cost estimating methods, such as reliance on statewide averages, heavy reliance on engineering judgment, and high levels of inaccuracy, this study developed two data-driven frameworks and corresponding tools. The first framework focused on resurfacing projects and used treatment-specific simple linear regression based on lane miles and geographic location. The second addressed a broader group of construction projects and used multiple linear regression with project length, route type, and right-of-way cost as key predictors. In both frameworks, the final estimates are computed by aggregating multiple estimates produced by county-, region-, and state-level models. The …

A Qualitative Study On Exploring The Underrepresentation Of Women Of Color In Fortune 500 Executive Leadership, Cherrese J. Belt

Electronic Theses and Dissertations

In this study the researcher examined the persistent underrepresentation of women of color in senior leadership roles within Fortune 500 companies. Despite the increasing number of highly qualified women of color, access to executive-level leadership opportunities remains disproportionately limited. The purpose of this qualitative phenomenological study was to explore the barriers experienced by women of color in advancing to senior leadership positions and to identify strategies used to navigate these barriers. The researcher collected data through semistructured interviews with 10 women of color in management and senior leadership roles, each with over 15 years of professional experience in the United …

Cultivating Diversity: Investigating Hispanic College Students’ Attitudes Toward Teaching Amid The U.S. Teacher Shortage Crisis, Daniela Andrea Hernandez

Electronic Theses and Dissertations

The underrepresentation of Hispanic teachers in U.S. public education remains a significant concern as Hispanic students comprise a growing proportion of the K–12 population. Despite this demographic shift, the educator’s workforce has not reflected the cultural and linguistic backgrounds of the students it serves. The purpose of this qualitative descriptive study was to explore first- and second-year Hispanic college students’ perceptions of teaching as a profession and to examine how their educational and personal experiences influenced their career interests. The study was informed by social cognitive career theory and culturally relevant teaching theory to better understand how self-efficacy, outcome expectations, …

Modernizing United States Marine Corps Enlisted Professional Military Education: Benefits Of Transitioning From Industrial To Technological Learning, Michael W. Hensley

Electronic Theses and Dissertations

Within organizational and societal contexts, there persists a belief that technologically infused asynchronous or synchronous educational programs, such as online, blended, or seminar-style formats, are inferior to in-person courses. Despite recent shifts in attitude caused by factors like the COVID-19 pandemic and global threats, the perception of such programs as substandard remains prevalent. This dissertation addresses the necessity of researching the applicability and benefits of these formats, particularly within the United States Marine Corps Enlisted Professional Military Education programs. Emphasizing the potential enhancement of warfighting abilities and leadership skills, this research investigates how technology-based educational programs can benefit enlisted marines …

Discrete-Event Simulation: A Leslie System Model For Transportation Demography, Md Zobaer Ahammad

Electronic Theses and Dissertations

Transportation systems are influenced by demographic change, household formation,and patterns of vehicle ownership. These factors affect long-run transportation demand and congestion levels within urban infrastructure. Understanding how demographic dynamics interact with transportation behavior is therefore important for analyzing the long-term evolution of transportation systems. This thesis develops a modeling framework that integrates discrete-event simulation with a Leslie-type matrix model to study transportation–demography interactions.Simulation outputs are aggregated to construct a transition matrix describing changes in transportation states. This matrix acts as a linear (or affine) transformation on the transportation state vector, allowing the system to be analyzed as a discrete linear …

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 …

Parent Engagement And Advocacy In Individualized Education Programs In Rural Appalachian School Districts, Mollie Rutledge

Electronic Theses and Dissertations

The purpose of this phenomenological study was to explore parent engagement and parent advocacy in the Individualized Education Program (IEP) development and implementation in rural Appalachian school districts. Parent engagement and parent advocacy in Individualized Education Program (IEP) development and implementation are persistent challenges in special education. By intentionally grounding this research in rural Appalachia, the researcher responded to calls for education research that is attentive to the complexity and diversity of rural communities. Parents in rural areas face unique challenges related to poverty, isolation, and limited resources that can influence their engagement and advocacy in the IEP process. The …

From Mono To Object: A Contextual Evolution Of R&B And Soul Vocal Production Techniques With Emphasis On Object-Based Audio In Dolby Atmos, Samuel W. Slape

Electronic Theses and Dissertations

The human voice is the central element in much of recorded commercial music, and in R&B it serves as the primary vehicle of expression. Across the evolution of reproduction formats, including mono, stereo, surround, and Dolby Atmos, engineers have adapted strategies to preserve vocal clarity while exploring new spatial possibilities. This thesis examines how these shifts in technology and perception have shaped vocal production, using R&B as a lens for the relationship between format and artistic practice. Psychoacoustics provides a foundation for understanding how listeners perceive localization, masking, and vocal prominence. Analytical approaches are introduced to distinguish direct and indirect …

Bass And Drum Grooves In R&B: Analysis And Composition, Hugh Taylor

Electronic Theses and Dissertations

The term “R&B” has existed within the musical lexicon for nearly eighty years. It was first introduced in 1949 to replace the label “race music,” and was a combination of blues, jazz, gospel, and rock. Since then, the genre has transitioned from swing-based, live instrumentation toward straight-eighth backbeats and electronically produced sounds. Despite these shifts, contemporary R&B continues to borrow from its ancestral roots while maintaining a modern aesthetic. A primary feature that has persisted through this landscape is the “groove,” specifically defined here as the rhythmic layer created by the drums and bass. In R&B, the bass provides both …

Pedagogy Of Immersive Audio In Music For Collegiate Application, Nathaniel Q. Stansbury

Electronic Theses and Dissertations

Academia has always struggled to keep up with the fast-changing audio industry. Recent developments in immersive audio have further widened this gap, and comparatively few pedagogical materials exist to assist in addressing the problem. This manuscript proposes a three-course curriculum designed to prepare undergraduate engineers for immersive music production. Course I introduces the history and terminology of immersive audio. Course II explores DAW signal flow, production procedures, and major immersive formats. Course III focuses on applied mixing, giving students hands-on experience. The curriculum acts as an opportunity for universities and educators to better equip students going into the music industry. …

Integrated Geophysical, Geotechnical, And Mineralogical Characterization Of Expansive Weches Formation Soils In East Texas: Implications For Infrastructure Design, Samuel Annobil

Electronic Theses and Dissertations

This study investigates the geotechnical, geophysical, and mineralogical characteristics of soils derived from the Weches Formation in Nacogdoches County, East Texas, with emphasis on the relationships among electrical resistivity, moisture condition, compaction state, and mineralogical composition. The Weches Formation is well known for producing clay-rich, moisture-sensitive soils that pose challenges to subgrade performance because of their plasticity and swelling behavior. Representative soil samples were collected and subjected to laboratory testing, including particle size analysis, Atterberg limits, Standard Proctor compaction, free swell tests, electrical resistivity measurements, and X-ray diffraction (XRD) mineralogical analysis. The soils are predominantly fine-grained and clay-rich, with USCS …

"Am I A Man Or A Muppet": A Rhetorical Analysis Of Generative Ai’S Representation Of Gender, Jessica Boaz

Electronic Theses and Dissertations

This thesis examines how generative artificial intelligence constructs and performs gender roles through a rhetorical analysis of the fully AI-generated podcast Fairytale Forensics. Drawing on theories of constitutive rhetoric, stereotyping, and McLuhan’s approach to the medium, this thesis investigates how AI-generated hosts interpret classic fairy tales while simultaneously reproducing and negotiating gender norms through the lens of prosopopoeia, metonymy and synecdoche. These performances rely on normative gender stereotypes that align with broader societal expectations, thereby potentially reinforcing existing cultural assumptions about masculinity and femininity. Ultimately, it demonstrates that AI-generated discourse does not merely reflect human biases but actively participates in …

The New Wild West: A Case Study Analysis Of The Communication Methods Surrounding Ai Infrastructure In West Texas, Thomas Sorensen

Electronic Theses and Dissertations

In the past several years, artificial intelligence has taken the world by storm. It has enabled numerous innovations across all sectors, and its usage continues to grow daily. This increase in demand for AI products has led to the development of AI data centers nationwide. Fueled by competition between the public and private sectors, many projects are underway. This study focuses on one such project in West Texas: the Stargate Data Center. This project is being constructed near Abilene, Texas, and has had an instrumental impact on the daily lives of its citizens. This research project seeks to answer the …

Retreat, Renew, Reflect: Exploring Digital Marketing Strategies For Faith-Based Retreat Centers, Rebecca A. Mickler

Electronic Theses and Dissertations

In today’s fast-paced world, retreat centers offer a vital opportunity for rest, reflection, and spiritual renewal. Despite growing societal awareness of mental health and wellness, many religiously affiliated retreat centers face stagnant participation, aging leadership, and operational challenges that threaten their long-term sustainability. This qualitative-dominant mixed methods study uses bright spots analysis to examine how Villa Maria Education and Spirituality Center (VMESC), a Catholic retreat center, can strengthen its digital marketing strategies to attract new audiences while maintaining mission alignment.

Bright spots analysis examines positive outliers, organizations that achieve notable success despite operating within similar constraints, to identify practices that …

Exploring The Way Up: Career Paths, Challenges, And Resilience Among Women Leaders In Higher Education, Angela M. Brown

Electronic Theses and Dissertations

Women represent the majority of students and faculty in higher education students in higher education in the United States, yet they remain underrepresented in executive leadership positions. Women pursuing these roles encounter unique challenges, and institutions have increasingly recognized the value of mentoring and sponsoring women who aspire to leadership. Guided by Kumar’s CR8 resilience theory, this qualitative descriptive study explored how women leaders in higher education in the United States describe their career pathways to leadership, the challenges they encounter, and the impact of mentoring/sponsoring in developing their resilience for career progression. Semistructured interviews were conducted with 11 women …