Digital Commons Network^™

Embodiment Among Collegiate Women Athletes: The Perceived Impact On Sport Performance, Commitment, And Enjoyment, Hannah Lynne Silva-Breen

Graduate Theses, Dissertations, and Problem Reports (ETD)

Collegiate women athletes report high rates of body dissatisfaction and wanting more support for improving their body image within their athletic departments. Guided by the Developmental Theory of Embodiment (DTE; Piran, 2017), the purpose of this study was to examine collegiate women athletes’ perceptions of the relationship between their embodiment and aspects of their sport experience. Participants were 311 women currently competing in 24 different sports within NCAA and NAIA athletics. Participants completed the Experience of Embodiment Scale, Subjective Performance Questionnaire, Sport Commitment Questionnaire-2, and open-ended response questions about the perceived relationship between these variables. A convergent parallel mixed methods …

Architecture And Mechanistic Engineering Of Nanocomposite Steam Electrodes For High-Performance Metal-Supported Protonic Ceramic Cells, Xuemei Li

Graduate Theses, Dissertations, and Problem Reports (ETD)

The advancement of proton-conducting ceramic cells (PCCs) is crucial for efficient energy conversion in hydrogen- and/or ammonia-based energy carrier systems. However, a bigger success requires significant progress in cell fabrication, interfacial stability, fast electrode kinetics, and high Faradaic efficiency. This study investigates the rational design, fabrication, and performance breakthroughs of PCCs, with a focus on electrode architecture engineering, material interfacial coupling, and mechanistic understanding of electrochemical processes.

The metal-supported fuel electrode structure of PCFCs was systematically optimized, revealing the significant influence of Ni diffusion on cell performance and durability. High power density and stable ammonia-fueled operation were achieved. A heterointerface-rich …

Dataless Neural Networks For Boolean Satisfiability And Network Optimization, Andrew Evan Gautier

Graduate Theses, Dissertations, and Problem Reports (ETD)

Combinatorial optimization problems (COPs) require searching over a finite solution space subject to constraints, with the goal of satisfying an objective function. They arise in operations research, scheduling, resource allocation, circuit design, and many other fields. Many problems in combinatorial optimization (including satisfiability and network design) are NP-hard. Traditionally, researchers have built approximate solvers that return near- optimal solutions efficiently by developing increasingly sophisticated heuristics and meta- heuristics. Deep learning has provided new opportunities for improving combinatorial solvers by leveraging neural guidance to prune the search space. Traditional neural networks have distinct drawbacks in this context: separate training and …

Comparing Unet And Hrnet For Geomorphic Feature Extraction From Digital Terrain Model-Derived Land Surface Parameters, Behnam Solouki

Graduate Theses, Dissertations, and Problem Reports (ETD)

Automated extraction of geomorphic features from high spatial resolution terrain data is important for environmental monitoring, geohazard assessment, and landscape change analysis. This study compares two convolutional neural network architectures, UNet and High-Resolution Network (HRNet), for semantic segmentation of mine benches and sinkholes from lidar-derived digital terrain models and land surface parameters. Mine benches represent anthropogenic, elongated, stepped landforms associated with historic surface mining, whereas sinkholes are natural, compact depressions common in karst terrain. Three terrain-derived input layers were used: square-root-transformed slope, broad-scale topographic position index, and fine-scale annulus topographic position index. Models were trained using five training sample sizes, …

Physics-Informed Machine Learning Methods To Predict Heavy-Duty Diesel Engine Performance And Emissions, Sandeep Guguloth

Graduate Theses, Dissertations, and Problem Reports (ETD)

The development of internal combustion engines for increased efficiency and reduced emissions demands improved design tools that are cost-effective, fast, and easy to integrate into existing engineering workflows. Low-dimensional physically based engine models serve this role by reducing the need for iterative experimental prototyping but historically rely on empirical correlations that sacrifice fidelity compared to CFD. Machine learning (ML) approaches, conversely, achieve high predictive accuracy but lack interpretability and generalize poorly beyond their training data. Physics-informed machine learning (PIML) bridges this gap by constraining the solution space to physically feasible predictions, offering a more reliable way to model in-cylinder phenomena. …

Smartbot V3: A Scalable Educational And Research Robotics Platform And Decentralized Construction Framework, Robert Tyler Cook

Graduate Theses, Dissertations, and Problem Reports (ETD)

Autonomous robotic systems are increasingly used in both engineering education and robotics research, creating a need for systems capable of supporting both within a common platform. This thesis presents SMARTbot V3, a scalable robotics platform developed to support undergraduate robotics education and multi-robot research.

SMARTbot V3 is a differential-drive mobile manipulator incorporating a 3-degree-of-freedom manipulator, LiDAR, RGB cameras, onboard computation, and Robot Operating System 2 (ROS2) software. The platform was designed to support scalable deployment through standardized hardware, modular construction, and common software. A fleet of twenty robots was manufactured and deployed for both educational and research activities. Educational validation …

Assessing Mobility And Upper Extremity Function Beyond Laboratory Settings In Manual Wheelchair Users With Spinal Cord Injury Using Inertial Measurement Units, Kathylee Pinnock Branford

Graduate Theses, Dissertations, and Problem Reports (ETD)

Manual wheelchair users with spinal cord injury (SCI) face chronic, repetitive shoulder demands that far exceed those of able-bodied daily life, placing them at high risk for rotator cuff pathology and long-term upper extremity dysfunction. Despite this burden, existing research has relied predominantly on brief laboratory assessments that capture only a narrow part of real-world mechanical demands, leaving critical gaps in the identification of true injury risk factors. This dissertation developed and applied inertial measurement unit (IMU)-based methods and novel algorithms to characterize arm use, mobility, and environmental context during a full week of free living behavior in 25 manual …

Surrogate-Based Approaches For Evaluating Post-Harvest Food Safety Interventions In Fresh Produce, Md Shafiul Islam Rion

Graduate Theses, Dissertations, and Problem Reports (ETD)

Pathogenic bacteria are still a threat to human beings worldwide as their presence is often unknown even if they are already present in fresh produces. This in turn resulted in several outbreaks and recalls across the United States. This dissertation investigated the survival of pathogenic bacteria and their potential non-pathogenic surrogates after antimicrobial interventions in different modes of applications on the surface of cantaloupes, butternut squash, and fresh cilantro. In the first study, peroxyacetic acid (PAA) was applied in three separate doses on nalidixic acid resistant Salmonella Typhimurium, Listeria monocytogenes, Enterococcus faecium, and Listeria innocua inoculated cantaloupe surfaces …

Comparison Of Push-Pull Air Curtain To Overhead Downdraft Systems On Aerosol Containment And Distribution In Controlled Environments, Manal Mutairi

Graduate Theses, Dissertations, and Problem Reports (ETD)

Abstract

Comparison of Push-Pull Air Curtain to Overhead Downdraft Systems on Aerosol Containment and Distribution in Controlled Environments.

This dissertation looks at the ongoing issue of tiny airborne particles created during medical and dental procedures and evaluates ways to reduce the risk of exposure for healthcare workers and patients to these particles. The first study focuses on the size, how long particles stay in the air, and how far they travel from common medical procedures that create aerosols, showing that tiny particles (less than 5 µm) can stay in the air long enough to escape basic droplet controls. As a …

Exploring Youth Soccer Coach Recruitment Practices, Han-Earl Lim

Graduate Theses, Dissertations, and Problem Reports (ETD)

This qualitative single-case study examined how a private-interest, nonprofit youth soccer club in the Midwestern United States recruits coaches, what coach qualities are prioritized in hiring, and how organizational and sociocultural conditions shape those practices. The study was guided by three research questions focused on (a) recruitment and early support processes, (b) hiring criteria and decision rationales, and (c) the organizational and sociocultural contexts influencing recruitment. Data were generated through five semi-structured interviews with four participants who were involved in recruitment practices (the Executive Director, the Assistant Director, and two full-time head coaches). Additional sources included an organizational mapping survey …

Leveraging Funds Of Knowledge And Funds Of Identity: Exploring Equitable Strategies For Diverse Classroom Settings, Evana Nusrat Dooty

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study explores how elementary teachers in the U.S. perceive and incorporate students’ Funds of Knowledge (FoK) and Funds of Identity (FoI) to promote equity in diverse classroom settings. A review of literature highlights the significance of culturally responsive pedagogy, FoK & FoI frameworks, and equity-oriented teaching practices. Semi-structured interviews were conducted to collect participants’ perspectives on leveraging students’ home and community knowledge in instructional planning and classroom interactions. Lesson plans were collected from all participants to get idea about how they could utilize  FoK and FoI approach in their classroom instruction. The findings highlight the need for teacher preparation …

Intersectionality In Discrimination, Posttraumatic Stress Symptoms, And Suicide Ideation: Black Americans In Appalachian Contexts, Jailyn May Wilson

Graduate Theses, Dissertations, and Problem Reports (ETD)

Racial discrimination is recognized as a race-based traumatic stressor that has been associated with posttraumatic stress symptoms (PTSS) and suicide ideation (SI). However, there remains a paucity of research investigating the impact of racial and other forms of discrimination on understudied populations, including Black Americans residing in Appalachian regions. The current study used an online self-report survey to examine PTSS as a mediator in the association between perceived discrimination and SI and to examine the moderating effect of the number of identity factors with which one experienced discrimination (i.e., race, gender, region) on the relationship between perceived discrimination and PTSS. …

Women In Music: Experiences Of Women Oboists In Us Symphony Orchestras, Brianna Corgel

Graduate Theses, Dissertations, and Problem Reports (ETD)

The evolution of women in American music has been a gradual and ongoing process. Historically, women were largely excluded from public musical life and did not achieve widespread acceptance as professional musicians until the 20^th century, largely due to prevailing cultural and societal expectations. In the 19^th century, women typically performed in domestic settings for small gatherings of family and friends. Female instrumentalists were generally limited to the piano and a few string instruments, while wind instruments—such as the oboe—were discouraged because they were considered unladylike or visually unappealing when played. The 20^th century saw the emergence …

Dispositional Mindfulness And Autonomic Reactivity, Thomas Dylan Boyer

Graduate Theses, Dissertations, and Problem Reports (ETD)

To explain how different facets of mindfulness were associated with task performance in distinctive ways, Lindsay and Creswell (2017) proposed the Monitor and Acceptance Theory (MAT). According to this model, the mindfulness facet of monitoring present state awareness was thought to influence task performance differently than the nonjudgmental acceptance facet of mindfulness, but no studies to date have examined this model with respect to an individual's physiological response to stressful tasks. Because dispositional mindfulness has been associated with both increased and decreased physiological and affective reactions to stress in previous studies, the present study tested whether the Monitoring facet of …

Timing, Spectral, And Single-Pulse Properties Of Radio Pulsars, Evan Francis Lewis

Graduate Theses, Dissertations, and Problem Reports (ETD)

Radio pulsars are highly magnetized, rapidly rotating neutron stars which emit beams of radio waves from their magnetic poles. Their incredible rotational stability allows for their use in a variety of high-energy astrophysical studies, though the details of their internal structure and emission mechanisms are still unknown. We use observations of a cross-section of the pulsar population in order to investigate the nature of their evolution, their emission properties, and their environments.

First we derive timing solutions for three pulsars discovered through their sporadic single pulses. It was possible to obtain timing solutions through a set of single-pulse times of …

Three Essays In Health Economics, Caroline Andressa Welter

Graduate Theses, Dissertations, and Problem Reports (ETD)

Health outcomes and access to care are shaped by the interaction between public institutions, administrative rules, and responses to health risk. This dissertation investigates how barriers to access, changes in perceived risk, and policy design influence participation in public programs, preventive health behavior, and  treatment continuation. Across three essays in health economics, I examine how individuals respond to disruptions in service delivery, epidemic exposure, and administrative burden, with a focus on vulnerable populations that depend on public systems of care.
The first essay analyzes the impact of Social Security Administration field office closures on participation in federal disability programs during …

Effects Of An Early-Onset Hfd On Hepatic Functioning In A 3xtg Model Of Ad, Matthias Hirst

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background: Approximately 1 billion people currently live with obesity. Driven by factors such as a high-fat diet (HFD), this pathology can have drastic effects throughout the body, with the liver in particular being a main target of its downstream consequences. Although it is capable of storing lipids, excess fat can conglomerate in the liver and contribute to various hepatic pathologies. A specific pattern of hepatic dysfunction seen in response to an HFD is increased acetylation of mitochondrial proteins. Further, expression and activity of insulin-degrading enzyme (IDE), involved in the degradation of Aβ, are altered in response to an HFD. Aβ …

Sustainable Nutrient Management Opportunities For Small Communities In The U.S. With Lagoon Wastewater Treatment Systems, Denis Sigei Ruto

Graduate Theses, Dissertations, and Problem Reports (ETD)

Lagoon wastewater treatment systems are among the most widely used secondary treatment technologies serving small and rural communities in the United States due to their low capital and operating costs, minimal energy requirements, and operational simplicity. While effective for removal of organic matter and suspended solids, most lagoon systems were not designed to achieve advanced nutrient removal. As regulatory priorities increasingly emphasize control of total nitrogen and total phosphorus to protect receiving waters and public health, lagoon-dependent communities face growing compliance challenges. These challenges are exacerbated by aging infrastructure, limited technical capacity, financial constraints, and insufficient infrastructure data, highlighting the …

Three Essays On Urban Transportation, Daniel Amorim Souza Centuriao

Graduate Theses, Dissertations, and Problem Reports (ETD)

Urban environments are shaped by dynamic interactions between infrastructure development, policy interventions, and episodic demand shocks, all of which can generate unintended externalities in the form of motor vehicle collisions, injuries, and fatalities. This dissertation investigates the determinants of traffic safety in dense urban settings, with a particular focus on how different sources of urban activity affect collision risk and severity. Using New York City as a case study and leveraging high-resolution spatial and temporal data, I examine three distinct but interconnected mechanisms: construction activity, traffic safety policies, and large-scale events.

The first chapter analyzes the impact of urban development, …

Preliminary Analysis Of Soil Volatile Organic Compounds As Soil Health Indicators, Thorne Taul

Graduate Theses, Dissertations, and Problem Reports (ETD)

Over the past decade, soil health (SH) has gained popularity due to the novelty of sustainable soil use related to human wellbeing. Soil health describes the overall quality of soil and its capacity to function over time. As interest in SH grows, researchers continue to explore new soil health indicators that can improve knowledge on how soil health is assessed and managed. Some indicators directly reflect soil health status, and some indirectly relate to processes and functions occurring within the soil. Volatile organic compounds (VOCs) are naturally occurring compounds that play a role in multiple soil processes. They are associated …

The Effects Of Gesture And Age On Jurors’ Perceptions Of Child Witnesses, Jihan Hani Rashed

Graduate Theses, Dissertations, and Problem Reports (ETD)

Jurors’ perceptions of child witnesses can have significant influence in judicial outcomes, particularly in cases where children’s testimony is central (Goodman et al., 1997; Goodman et al., 1998; Castelli et al., 2005). The role of gesture in shaping jurors’ perceptions is underexplored. Studies highlight that gesture enhances memory recall and reduces cognitive load, making it an important component of effective communication (Goldin-Meadow et al., 2001; Hudson & Sheffield, 1998; Cook & Fenn, 2017). The present research consisted of two studies examining whether child witnesses’ use of gesture during recall of an alleged crime affected jurors’ perceptions of witness credibility and …

Rurality, Infant Feeding Practices, And Perinatal Cardiovascular Health Behaviors, Elly Marie Marshall

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: Cardiovascular diseases are a leading cause of pregnancy-related deaths in the United States, with higher rates in rural areas. While limited healthcare access contributes to this disparity, other factors remain unclear. Breastfeeding provides long-term protection against cardiovascular disease, but modern infant feeding practices are complex and may impact maternal cardiovascular health (CVH) in unexpected ways. Healthy CVH behaviors of sufficient sleep duration, adequate physical activity, a healthy diet, and nicotine avoidance can enhance protection against future cardiovascular disease risk. Therefore, the aims of this dissertation are to 1) assess associations between rurality and first trimester CVH behaviors; 2) synthesize …

Psychometric Assessment Of The Ambivalent Ageism Scale: Investigating Measurement Invariance And Stability Across Groups And Time, Carly Pullen

Graduate Theses, Dissertations, and Problem Reports (ETD)

The goal of the current study was to examine the psychometric properties of the Ambivalent Ageism Scale (Cary et al., 2017) and to provide an understanding of how ageist attitudes might change or remain the same in response to a cultural and societal event. Measurement invariance is the assessment of the psychometric equivalence of a construct (e.g., ageism) across groups or waves of measurement (Putnick & Bornstein, 2016). The first step in measurement invariance analyses is configural measurement invariance, which is the evaluation of the factor structure, with the goal of producing the same number of factors and the same …

The Bleeding Edge Of Misogyny: How Gender-Based Harassment And Infrastructural Neglect Shape Menstrual Distress, Mackenzie J. Miller

Graduate Theses, Dissertations, and Problem Reports (ETD)

Despite growing attention to menstrual health, organizational research has largely overlooked how workplace conditions shape menstrual experiences. Dominant perspectives frame menstruation as an individual issue that negatively affects work, neglecting how features of the work environment – such as gender-based harassment and access to menstrual-related infrastructure – contribute to menstrual distress. Addressing this gap, this dissertation adopts a bidirectional perspective, examining how social and material workplace conditions shape menstrual distress, defined as the extent to which menstrual symptoms interfere with daily functioning. Drawing on the transactional model of stress and objectification theory, I hypothesized that gender-based harassment would predict menstrual …

Bringing Patriarchy To Looksmaxxing: Identification And Exploration Of Strategies To Restabilize The Patriarchy In The Looksmaxxing Community, Mackenzie Grace Freeman

Graduate Theses, Dissertations, and Problem Reports (ETD)

Research literature on looksmaxxing is subsumed under the incelosphere, which is acknowledged as a white and male supremacist space. Yet, researchers fail to attend critically to the structure of patriarchy, choosing instead to base their analyses within the mainstream hegemonic masculinity paradigm. Using a Bourdieusian framework, this project fills a gap in the literature by transcending the mainstream paradigm to explain how the looksmaxxing community uses the body as a site of crisis management in response to patriarchal backlash, with the ultimate goal of restabilizing the patriarchy. This project uses a community-led survey from a popular online looksmaxxing community. This …

Early Life Adversity And Reward Reactivity In Humans, Maria C. Potts

Graduate Theses, Dissertations, and Problem Reports (ETD)

Both animal and human research has identified early life adversity (ELA) as a prominent risk factor for substance use disorder (SUD). However, the underlying mechanisms linking ELA to SUD development remain unclear. Animal studies point to differences in reward responsiveness as the primary explanation; specifically, that ELA could lead to individual differences in the attribution of incentive salience to reward-predictive cues, or the “sign-tracking” behavioral phenotype. Sign-tracking has been linked to addiction-related behaviors in both animal and human studies, but no human studies have examined whether sign-tracking could partially explain the link between ELA and SUD. In fact, human studies …

Forces Of Movement: How Changing Perceptions Of Slavery And Freedom Affected Black Lives In The Mason-Dixon Borderland, 1861-1872, Rachael B. Nicholas

Graduate Theses, Dissertations, and Problem Reports (ETD)

The Mason-Dixon Line, first surveyed between 1763 and 1767, became the symbolic “dividing line” between free and slave states in antebellum America. This perception of the Mason-Dixon Line allowed a larger borderland to grow around it: the Mason-Dixon Borderland, which consisted of northern Maryland, Washington, D.C., southern Pennsylvania, northern Virginia, and the Shenandoah Valley (western Virginia and the eastern panhandle of West Virginia).

Americans used slavery and freedom as referents to make decisions about survival, military policy, politics, and freedom-seeking during the Civil War. Those decisions had consequences for their movement across the Mason-Dixon Borderland, causing it to change as …

Unsuccessful? Universal Human Rights And The United Nations: Russian Imperialism In Ukraine And The Post-Udhr International System, Sofiia Novytska

Graduate Theses, Dissertations, and Problem Reports (ETD)

Human universality has always stood as a controversial subject and remains politically contentious today. Following the humanitarian crisis of World War II, the international community was determined to protect the integrity and dignity of people worldwide by developing the United Nations’ Universal Declaration of Human Rights. However, universal human rights were not invented by the Declaration and were already conceptually established in global ancient thought, further evolved into Early Modern scholarship, and later paved the way for modern humanitarian frameworks. The UDHR was not universally well-received, and was criticized for its revolutionary legal character, postcolonial contestation, and practical ambiguity. The …

Development Of Periodic Plasmonic Nano-Structures For Enhanced Labeled Bio-Sensing Systems, Kyle Zackary Smith

Graduate Theses, Dissertations, and Problem Reports (ETD)

The biomedical industry has seen sustained growth over the past half century, with a continually increasing demand for flexible, easy-to-use, and cost-effective tools. One large area of commercial interest has been point-of-use or point-of-care diagnostics, using optical based Lab-On-Chip (LOC) style systems. Label and label-free fluorescence detection systems are common benchtop modalities that have seen recent integration into these portable, cost-effective LOC applications. However, despite their maturity, there are still opportunities to improve device characteristics, specifically in reference to throughput, limit-of-detection (LOD), and hybrid integration (along with associated costs).

Optical research avenues at WVU have focused on improving these systems …

The Deposition, Prevalence, And Persistence Of Gunshot Residue In Standard And Less Lethal Ammunition, Liliana Claire Barbosa

Graduate Theses, Dissertations, and Problem Reports (ETD)

During the discharge of a firearm, gunshot residue (GSR) is released and settles into nearby surfaces, leaving traces that can provide valuable information for forensic investigations. This study aims to improve understanding of the deposition, prevalence, and persistence of standard and less-lethal ammunition through an analytical framework that examines collection and analysis protocols, revealing connections among multiple traces for effective use in investigations and courtroom proceedings.

Research into the chemical residues of less lethal ammunition (LLA) is a critical frontier in shooting investigations. While standard leaded ammunition has over a century of established literature, the chemical fingerprints of LLA residues …