Genetics Of Mycangial Development And Host Colonization Within The Ambrosia Symbiosis, Mckeon James Laws

Graduate Theses, Dissertations, and Problem Reports (ETD)

Ambrosia beetles, a polyphyletic group of weevils, utilize pouch-like structures at various locations on the body to transport for their sole food source, their fungal partner. Ambrosia fungi are known to originate from multiple unrelated fungal lineages with no consensus of traits required to become a fungal cultivar. While the biology and ecology of both partners is in many cases well understood, the genetic underpinnings of this fascinating mutualism remain a mystery. The aim of this dissertation is to add to the understanding of the ambrosia symbiosis by providing insights into its molecular and genetic underpinnings through RNA sequencing data, …

Cell-To-Pack Modeling Of Lithium-Ion Batteries: From Bayesian Parameterization To Pack-Level Optimization, Derek Slack

Graduate Theses, Dissertations, and Problem Reports (ETD)

One of the major hurdles for electric or hybrid aviation is the comparative energy density between lithium-ion batteries and jet fuel. To help obtain maximal power-to-weight ratio in electric or hybrid powertrains the battery pack design should be optimized to be as light as possible while meeting thermal safety and power requirements. The proposed solution is an optimization routine beginning with a cell-level parameter estimation of lithium-ion battery cells, where data driven Bayesian Gaussian Processes replace empirically or analytically derived parameters in a first principles electrochemical model in PyBaMM, as functions of the transient state of the cell. The resulting …

Multiphysics Modeling Of Microwave-Assisted Calcination Of Soec Perovskite Precursors, Hongwei Liu

Graduate Theses, Dissertations, and Problem Reports (ETD)

The calcination of precursor powders is a critical step in the synthesis of solid oxide electrolysis cells (SOECs), where phase purity and microstructural control directly influence electrochemical performance. Conventional calcination methods are energy-intensive and time-consuming, often requiring prolonged high-temperature processing. In this thesis, microwave-assisted calcination is investigated as an alternative approach to enable rapid, energy-efficient processing of SOEC per- ovskite precursor powders. Microwave heating offers distinct advantages, including volumetric and selective heating, reduced processing times, and improved energy utilization compared to con- ventional thermal methods. A multiphysics modeling framework is developed, which integrates electromagnetic wave propagation, governed by Maxwell’s equations, …

Assessment Of Emissions Factors For Produced Water And Other Atmospheric Liquid Storage Tanks On Natural Gas Sites, David Glenn Childs

Graduate Theses, Dissertations, and Problem Reports (ETD)

As the US natural gas (NG) sector continues to grow, concerns have increased regarding the effects and increasing volume of greenhouse gases emitted into the atmosphere. While NG is a cleaner burning fuel than diesel and gasoline, unburned methane (CH₄) has a global warming potential (GWP) 27-30 times that of carbon dioxide (CO₂). To better quantify CH₄ emissions on NG sites, the US Department of Energy (DOE) granted West Virginia University (WVU) funding to collect direct measurements at well sites and compressor stations.

In this work, a total of 18 sites, including controlled and uncontrolled …

Empowered Choices: A Quality Improvement Women’S Health Initiative In Faith-Based Nursing For Women Recovering From Substance Use Disorder, Jennifer Mewshaw

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: Women with substance use disorder (SUD) face higher rates of unplanned pregnancy, reproductive infections, and delayed prenatal care. Faith community nurses (FCNs) often already serve within this community and have a long history of promoting public health interventions. However, they lack the knowledge and confidence in sexual and reproductive health (SRH) education.

Evidence Review: A literature review identified barriers to SRH care for women with SUD and the role of FCNs in community and public health interventions. Evidence supports providing FCNs with the knowledge and skills to deliver SRH education and support for women with SUD using trauma-informed and …

The Tax Governance Triangle: An Attitudinal Theory Of State Capacity And Tax Compliance., Abdul Wahid Uqaily

Graduate Theses, Dissertations, and Problem Reports (ETD)

The Tax Governance Triangle: An Attitudinal Theory of State Capacity and Tax Compliance

Abdul Wahid Uqaily

Variation in states' extractive capacity is a central puzzle in comparative politics and political economy. Existing scholarship explains this variation largely through institutional quality, administrative capability, or coercive enforcement, with less attention to the attitudinal foundations that shape key actors' willingness to sustain an effective fiscal system. This dissertation addresses that gap by asking: how do the attitudes and behaviors of citizens, bureaucrats, and elites shape variation in a state's extractive capacity?

To answer this question, the dissertation develops the “Tax Governance Triangle” and …

Development Of A Protocol To Improve The Use Of Diabetes-Specific Formula, Lauren Nicole Sanetrik

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: Enteral nutrition (EN) is often necessary for hospitalized patients who are unable to meet their nutritional needs orally. Patients with diabetes mellitus (DM) receiving EN are at risk of hyperglycemia, which contributes to poor wound healing, infection, and prolonged hospitalization. Diabetes-specific formulas (DSFs) are designed to optimize glycemic control compared with standard formulas (SFs); however, their use is inconsistent due to the absence of standardized protocols.

Purpose: The purpose of this Doctor of Nursing Practice (DNP) quality improvement project was to implement and evaluate a protocol to increase DSF utilization among patients with DM receiving EN, with the goal …

Does Diverse Seeding Adoption Reduce Production Costs? The Case Of Diverse Forage Seeding Strategies In West Virginia., Ivan Andres Wong

Graduate Theses, Dissertations, and Problem Reports (ETD)

Feed and harvested forage represent a major share of production costs in Appalachian cow-calf systems, where a pronounced summer forage gap forces producers to rely on purchased hay. This thesis evaluates whether adopting diverse forage seeding strategies reduces production costs relative to the existing pasture management practice, accounting for the spatial heterogeneity of West Virginia’s production environments. The analysis proceeds in two steps. First, an unsupervised K-means clustering of 14 farms enrolled in the NRCS Conservation Innovation Grant field trial groups the farms into two agroclimatic clusters, Highland-Cool and LowlandWarm, using elevation, growing-season Growing Degree Days, growing-season precipitation, and soil …

Cultural Perceptions And Willingness Or Reluctance To Use Ai Chatbots For Emotional Support By International African Students In Higher Educational Institutions In The United States, Zakariah Issah

Graduate Theses, Dissertations, and Problem Reports (ETD)

The increasing use of artificial intelligence (AI) chatbots for emotional support underscores the need to understand how cultural perceptions shape their adoption among international African students in higher education institutions in the United States. Guided by the Technology Acceptance Model (TAM) and Social Stigma Theory, this qualitative study explored the perceptions, motivations, and barriers influencing the use of AI chatbots for emotional support. Semi-structured interviews were conducted with 20 undergraduate and graduate students from 10 African countries. The findings reveal that participants viewed AI chatbots as conditional and situational sources of emotional support rather than replacements for human relationships. Convenience, …

Examining Drivers Of Brook Trout (Salvelinus Fontinalis) Fecundity And Recruitment In Central Appalachian Headwater Streams, Emilee Esther Briggs

Graduate Theses, Dissertations, and Problem Reports (ETD)

The persistence of fish populations depends on the repeated production and survival of new year classes, also referred to as recruitment. Recruitment is broadly defined as the number of individuals in a fish population or stock that survive to a specific stage. However, the broader recruitment process reflects the cumulative outcome of many earlier life stages, including egg survival, fry emergence, and survival through the recruitment period. As a result, recruitment can vary substantially among years and populations, producing strong or weak year classes that influence population abundance and persistence. Understanding why recruitment varies is therefore central to fisheries ecology …

Stakeholder Perceptions Of West Virginia’S Artificial Food Dye Ban In K–12 School Meals: Initial Year Of 2025-2026, Leah Michelle Rogers

Graduate Theses, Dissertations, and Problem Reports (ETD)

OBJECTIVES: Artificial food dyes (AFD+) are an increasing policy concern in the U.S., particularly in children’s foods. West Virginia’s House Bill 2354, the first statewide AFD+ ban implemented in K-12 schools, restricts seven AFD+ in state-funded meals. Little is known about how AFD+ bans are perceived or implemented. This study examined how the ban functioned within school food systems and the barriers and facilitators experienced by school stakeholders within the initial year of implementation during the 2025-2026 school year.

METHODS: A cross-sectional, observational mixed-methods study was conducted among implementers, enforcers, and receivers of the policy. A survey tool …

Innovative Strategies For Stabilizing Zinc Anodes: From Molecular Design To Practical Zinc-Ion Batteries, Nhat Anh Thi Thieu

Graduate Theses, Dissertations, and Problem Reports (ETD)

Aqueous zinc-ion batteries (AZIBs) have become increasingly attractive as grid-scale energy storage solutions due to their safety, low cost, and environmental friendliness. However, the anode-electrolyte interface in AZIBs is prone to instability due to severe dendrite growth, self-corrosion, parasitic water-induced side reactions, and hydrogen evolution reactions (HER), which collectively lead to poor cyclability. To date, various interfacial engineering strategies have been investigated to address these challenges and improve the stability of Zn metal anodes. This dissertation presents a unified strategy for regulating Zn deposition through synergistic electrode and electrolyte design in laboratory-scale coin cells and then applies these concepts to …

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. …

Dielectrophoretic Biomarkers For Cancer Detection And Cell Analysis: Integrating Microfluidics And Ai, Raphael Olumide Oladokun

Graduate Theses, Dissertations, and Problem Reports (ETD)

Pancreatic ductal adenocarcinoma (PDAC) carries a five-year survival rate of 13%, driven largely by late-stage diagnosis and the absence of sensitive noninvasive screening tools. Current diagnostic methods lack the sensitivity to detect disease-associated systemic changes at early and precancerous stages, representing a critical clinical gap. This dissertation addresses the central hypothesis that PDAC and its pathological subtypes induce measurable, disease-associated electrophysiological changes in circulating PBMCs that can serve as correlative liquid-biopsy biomarkers. To test this hypothesis, this work asks: can dielectrophoresis (DEP), impedance and zeta potential analysis with AI-assisted classification distinguish benign pancreatic conditions (non-malignant control), precancerous lesions (primarily IPMNs), …

Romantic Narrative In Three Early Piano Cycles By Robert Schumann: Papillons, Op. 2; Fantasiestücke, Op. 12; And Kinderszenen, Op. 15, Lingqing Huang

Graduate Theses, Dissertations, and Problem Reports (ETD)

This research project compares Romantic instrumental narrative in Robert Schumann’s Papillons, Op. 2; Fantasiestücke, Op. 12; and Kinderszenen, Op. 15, with particular attention to how pianists communicate cyclic continuity in performance. In this study, narrative continuity refers to relationships formed across ordered short pieces through contrast, interruption, return, literary association, fantasy, memory, tonal and motivic recall, and the shaping of sound and time. Comparative score analysis shows that Schumann creates a distinct form of continuity in each cycle. In Papillons, he creates a public, ballroom-based form through masquerade, waltz-like dance, abrupt entrances, interruption, and the gradual dissolution of the social …

Development And Validation Of A Multi-Output Neural Network-Based Virtual Temperature Sensor For Electric Vehicle Thermal Management, Dalton Michael Wiggins

Graduate Theses, Dissertations, and Problem Reports (ETD)

Battery electric vehicles (BEVs) rely on accurate thermal management to ensure component performance, efficiency, safety, and long-term durability. Critical propulsion system components, including electric motors and high-voltage battery packs, are commonly monitored using physical temperature sensors. However, these sensors increase system cost, introduce additional hardware complexity, and may be impractical for directly measuring temperatures at critical internal locations. Virtual temperature sensors (VTSs) provide a software-based alternative by estimating component temperatures using readily available vehicle operating data.

This research presents the development and validation of a long short-term memory (LSTM) neural network-based virtual temperature sensor capable of simultaneously estimating the motor …

An Evidence-Based Practice Initiative To Expedite Pediatric Recovery And Discharge Following Myringotomy Tube Placement, Nicole Marie Rillera

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: The use of multiple sedatives, anxiolytics, and analgesics to prevent emergence agitation (EA)in pediatric patients undergoing myringotomy (MT) placement at West Virginia University Medicine Children's is leading to prolonged lengths of stay in the post-anesthesia care unit (PACU). These extended stays are causing delays in subsequent procedures and raising concerns for staff, patients, and their families.

Evidence Review: The combination of intranasal dexmedetomidine given preoperatively and intramuscular ketorolac given intraoperatively for pediatric patients reduces the incidence of EA more effectively than oral midazolam and acetaminophen.

Purpose: This evidence-based practice project aims to establish a standardized, evidence-based anesthesia plan to …

Social Media Appearance Pressures And Body Dissatisfaction In Collegiate Athletes: Model Refinement, Group Differences, And Exploratory Insights, Hannah Hunter Miller

Graduate Theses, Dissertations, and Problem Reports (ETD)

In considering athletes’ body image, it is necessary to examine the psychosocial factors, and related psychological processes, that influence it. The body-related pressures athletes experience while navigating social media represent a relatively new and increasingly influential factor that warrants further investigation. The purpose of this study was threefold: (1) to replicate and refine Miller and colleagues’ (in press) model; (2) to examine differences in model variables and relationships across demographic and contextual groups; and (3) to explore aspects of social media perceived as contributing to appearance pressures, as well as strategies athletes may use to mitigate these pressures and their …

Improving Access To Care And Utilization Of Telehealth In Pediatric Inflammatory Bowel Disease Patients Through Scheduling Interventions: A Quality Improvement Project, Sarah R. Bergstrom

Graduate Theses, Dissertations, and Problem Reports (ETD)

Abstract

Improving Access to Care and Utilization of Telehealth in Pediatric Inflammatory Bowel Disease Patients Through Scheduling Interventions: A Quality Improvement Project

Sarah Bergstrom

Introduction/Background. Inflammatory bowel disease (IBD) tends to affect pediatric patients with a more severe, aggressive phenotype as compared to adults. Following closely with a pediatric gastroenterologist (GI) is best practice to manage pediatric IBD. However, pediatric subspecialty clinics are generally located within academic institutions in urban areas. Patients in rural areas often have limited access to pediatric GI care, and poor access to care is associated with increased risk of poor disease control. Telehealth subspecialty …

Increasing Documentation Of Endotracheal Tube Cuff Pressures: A Quality Improvement Initiative For Flight Crew Providers, Matthew D. Noss

Graduate Theses, Dissertations, and Problem Reports (ETD)

ABSTRACT

Background: There was a lack of documentation of endotracheal tube (ETT) cuff pressures (CPs) by flight crew providers at Base 1 of HealthNet Aeromedical Services. A three-month pre-intervention data collection showed 1.8% of patients had initial CPs documented. Inadequate documentation and monitoring of ETT CPs can lead to patient complications such as tracheal injury and aspiration making this an important area for quality improvement.

Purpose: To increase documentation of ETT CPs through education and evidence-based interventions.

Intervention: This project implemented an educational in-service on ETT cuff syringe manometry for flight crew providers. The educational intervention consisted of …

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 …

Evaluation Of Engineering Controls In Mitigation Of Fecal And Chloride Contamination To An Urban Stream, Gabriel J. Zenny

Graduate Theses, Dissertations, and Problem Reports (ETD)

Fecal coliform contamination is a major contributor to surface water pollution in the United States’ (U.S.) waterways, whether from combined sewer overflows (CSOs) (point source pollution), runoff from precipitation and snowmelt (nonpoint source pollution), or exfiltration from aging and failing infrastructure. In addition to fecal bacteria, chloride contamination is also a major, prevalent surface water contaminant impacting U.S. waterways. Chloride contamination is predominantly released into U.S. waterways as nonpoint source pollution, endemic to northern areas that use industrial brine and salt as a form of mitigation for ice accumulation on roadways. The purpose of this research was to investigate impairment …

Semantic-Weighted Lidar–Camera Slam For Robust Mapping In Vegetation-Rich Environments, David Aigbovboise Akhihiero

Graduate Theses, Dissertations, and Problem Reports (ETD)

Many LiDAR odometry and SLAM methods are lightweight and effective, but they assume that all LiDAR point returns are equally reliable. In practice, this assumption is often violated in vegetation rich or semi transparent environments, where in a single beam footprint, LiDAR beams may intersect multiple scattering surfaces like leaves, branches or glass. These ambiguities in returns produces probabilistic or biased range measurements that violate the assumptions of most geometric registration frameworks and can lead to drift and inconsistency.

To address this challenge, this dissertation proposes a semantic-weighted LiDAR-camera SLAM framework that integrates class dependent weights into a front-end LiDAR …

An Assessment Of Disease Risks, Population Genetics, And Spatial Ecology Of Appalachian Cottontails (Sylvilagus Obscurus) And Snowshoe Hares (Lepus Americanus) In West Virginia, Usa, Madison Leigh Miller

Graduate Theses, Dissertations, and Problem Reports (ETD)

Snowshoe hares (Lepus americanus) occupy a large range across the United States and Canada. While snowshoe hare populations are generally considered stable in the interior of their range, populations along range edges are experiencing declines, possibly driven by climate-related factors such as seasonal coat color mismatch. West Virginia represents one of the southernmost extents of the species’ range, yet little is known about the population genetic status or population sizes of snowshoe hares in the state. Appalachian cottontails (Sylvilagus obscurus) are another lagomorph species found in West Virginia. This species experienced a historical decline and currently …

A Quality Improvement Initiative To Reduce Pressure Ulcers In Spinal Cord Injury Patients, Nicholas Post

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background: Pressure ulcers are a significant concern for hospitalized patients, leading to various complications and increased medical costs. Despite common preventative interventions, pressure ulcer rates remain elevated. The prevalence of pressure ulcers contributes to patient suffering, extended hospital stays, increased healthcare expenses, and even fatalities. This emphasizes the critical need for additional prevention strategies. The reported increase in pressure ulcer injuries among spinal cord injury patients in the Surgical Intensive Care Unit (SICU), along with 7E and 8NE step-down units, at a large academic hospital highlights the pressing issue.

Purpose: The purpose of this project was to develop and …

Elucidating Structure–Reactivity Relationships In Ni-Catalyzed Co2 Methanation, Majed Alam Abir

Graduate Theses, Dissertations, and Problem Reports (ETD)

The catalytic hydrogenation of carbon dioxide (CO₂) to methane represents a promising strategy for carbon utilization and renewable energy storage within power-to-gas systems. When coupled with hydrogen derived from renewable electricity, CO₂ methanation enables the conversion of intermittent energy sources into storable and transportable chemical fuels compatible with existing natural gas infrastructure. Nickel-based catalysts have emerged as leading candidates for this reaction due to their high activity towards CO₂ methanation, abundance, and cost. However, the performance and long-term stability of Ni catalysts are strongly influenced by catalyst support properties, Ni nanoparticle size, and promoter effect, and …

Structured Education To Reduce Medication Errors In A Group Home Setting A Quality Improvement Project, Alicia Abate

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: Medication errors in residential group homes contribute significantly to preventable morbidity and mortality amongst a vulnerable population.

Evidence Review: A review of the literature demonstrated that initial and ongoing structured education, continuous monitoring help and enhanced communication strategies improve medication administration safety, thereby reducing the incidence of medication errors.

Purpose: The purpose of this DNP project was to reduce medication administration errors among direct care staff in a residential group home setting through implementation of structured, individualized medication administration education modules following medication errors.

Methods: Guided by the Plan, Do, Study, Act (PDSA) model, this project evaluated the feasibility, …

Improving Access To Treatment For Alcohol Use Disorder For Veterans: An Evidence-Based Practice Policy Analysis, Mary Rizzo

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: Alcohol use disorder (AUD) is common among veterans and is associated with poor health outcomes. Although extended-release naltrexone (XR-NTX) is an effective treatment, maintenance injections at the VA Pittsburgh Healthcare System are only available at the main medical center, requiring many veterans to travel long distances each month.

Purpose: The purpose of this evidence-based practice policy analysis was to evaluate the feasibility of offering XR-NTX injections at Community-Based Outpatient Clinics (CBOC) and develop a policy recommendation to improve access to care.

Intervention: This project examined the current XR-NTX administration process and compared it with alternative approaches used within the …

The Histamine-3 Receptor In Cardiac Fibrosis: A Novel Role In Fibroblast Function, Heather Linsky

Graduate Theses, Dissertations, and Problem Reports (ETD)

In the United States, heart failure affects approximately 6.7 million individuals. Despite a number of available therapies, heart failure prevalence continues to grow, suggesting the need for a broader range of effective therapies. More specifically, heart failure with preserved ejection fraction comprises approximately 50% of all heart failure cases and, as the name suggests, is a disease of diastolic dysfunction as opposed to systolic dysfunction. A hallmark of heart failure with preserved ejection fraction is myocardial fibrosis, which is a key contributor to diastolic dysfunction, and is the major focus of this dissertation work. In the heart, histamine-3 receptor activation …

Factors Influencing Eastern Wild Turkey (Meleagris Gallopavo Silvestris) Productivity And Nesting Chronology In West Virginia, Kirstin Palumbo

Graduate Theses, Dissertations, and Problem Reports (ETD)

Identifying drivers of variation in the timing of breeding behaviors, such as courtship activities and nesting chronology, is important for the effective management of avian species. Likewise, productivity is an important component of game bird population dynamics and can be broken up into multiple components such as the probability of nesting, clutch size, and nest success. One species that experiences a relatively long reproductive season is the Eastern wild turkey (Meleagris gallopavo silvestris). Contemporary research in the southeastern United States has raised concerns regarding declines in both wild turkey populations and overall productivity. West Virginia, however, is unique …