Digital Commons Network^™

Deep Learning-Based Co-Current Upward Gas-Liquid Two-Phase Flow Regime Identification In An Annular Conduit, Joshua Robert Macomber

Graduate Theses, Dissertations, and Problem Reports (ETD)

Flow regime identification in co-current upward gas-liquid flow through annular conduits remains a significant challenge in petroleum engineering, with major safety and operational implications. It is also important across industries involving the transport of multiphase fluids. Misidentifying flow regimes can introduce major operational risk, yet regime boundaries in annular gas-liquid flow are often visually complex and context dependent.

The objective of this study was to evaluate the utility of convolutional neural network (CNN) classifiers for flow regime identification. The CNN was trained using annular flow image dataset published by Texas A&M University. The dataset consists of approximately 947 RGB images …

The Impacts Of Experiential Learning On Moral Development, Jacob Tyler Greenfield

Graduate Theses, Dissertations, and Problem Reports (ETD)

Burnout remains a widely studied phenomenon in the healthcare literature, with much of the focus placed on reactive mitigation strategies that lack meaningful engagement with moral development. Healthcare education programs rarely incorporate formal learning experiences that promote moral development as a means of addressing burnout symptoms. This qualitative single case study examined how health professions students describe the impact of experiential learning on their moral development. Participants engaged in adapted photovoice methods, focus groups, and interviews to reflect on how serving as a Project MUSHROOM student leader influenced their morality. Four themes emerged: 1) recognizing bias and the need to …

Programs Of Support For Wardship Experienced Students: Exploring Program Directors' Expectations And Experiences Through A Bioecological Framework, Adalheid Faith Crum

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this research is to explore the expectations and experiences of program directors of campus support programs which center wardship experienced students. This research question guided the current study: What expectations and experiences influenced program directors’ development and reform of a wardship-centered campus support program? This inquiry applies Ürie Bronfenbrenner’s Person–Process–Context–Time (PPCT) bioecological model. Semi-structured interviewing was utilized for this case study. In this research, six directors of campus support programs centering wardship experienced students were interviewed. Additionally, this work employs content analysis of twenty-eight National Research Collaborative for Foster Alumni and Higher Education (NRC-FAHE) publications, introducing fourteen …

Bridging The Gap: An Innovative Life Skills And Job Readiness Initiative For Those Facing And/Or Experiencing Homelessness, Alyssa Rae Lester

Graduate Theses, Dissertations, and Problem Reports (ETD)

Homelessness disrupts occupational functioning across all domains of daily life, yet individuals in transitional housing frequently lack access to structured life skills programming tailored to their current level of functioning. This doctoral capstone project developed, implemented, and evaluated a life skills and job-readiness curriculum at the West Virginia Coalition to End Homelessness West Run transitional housing facility in Morgantown, West Virginia. Grounded in Bronfenbrenner's Ecological Model of Human Development and the Bridging the Transition from Homeless to Housed framework, the curriculum addressed four domains: personal development, household management, financial literacy, and vocational readiness. A mixed-methods design combined a structured staff …

Exploring The Determinants And The Effects Of Crypto Assets, Qiu Zheng

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation consists of three studies that primarily delve into the factors influencing and outcomes of firms’ crypto assets. The first paper examines the association between corporate crypto assets and firms’ credit ratings. Using a large sample of U.S. public firms, we find that firms holding crypto assets receive significantly better future credit ratings, particularly when their activities are related to crypto mining, which generates relatively stable cash flows. However, crypto exposure also increases disagreement among credit rating agencies, reflecting the uncertainty associated with evaluating crypto-related risks. This effect is more pronounced when firms operate in less transparent information environments …

Understanding Housing Market Adjustment: Evidence From Population Shocks, Regulation, And Monetary Policy, Michael Tyler Duncan

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation studies how housing markets adjust to demographic shocks, local regulation, and macroeconomic policy through three related essays. Chapter 1 develops a dynamic stochastic general equilibrium (DSGE) model and panel VECM evidence to study how population volatility affects housing prices, rents, and construction. It finds that population shocks generate strong price responses across housing markets and more pronounced effects in tight housing markets and declining regions. Chapter 2 examines local rental registry policies using county-level difference-in-differences analysis and finds limited aggregate effects but meaningful heterogeneity across treatment intensity and market segments. Chapter 3 revisits the macro-housing VAR literature on …

Comprehensive Evaluation Of Co₂ Eor Numerical Modeling In The Clinton Sandstone Of The Appalachian Tri-State Region Using Compositional Reservoir Simulation (Cmg Gem), Bushra Aref Alqattan

Graduate Theses, Dissertations, and Problem Reports (ETD)

ABSTRACT

The Clinton Sandstone of the Appalachian Basin represents a mature hydrocarbon-producing formation with potential for carbon dioxide (CO₂) enhanced oil recovery (EOR). This study develops a compositional reservoir simulation model using the CMG software suite (WinProp, Builder, and GEM) to evaluate the performance of CO₂ injection in improving oil recovery within the Clinton formation.

A three-dimensional reservoir model was constructed using representative geological and petrophysical properties consistent with those of the Clinton Sandstone. Fluid behavior was modeled using a compositional equation-of-state (EOS) approach to accurately capture phase behavior, miscibility development, and CO₂–oil interactions under reservoir conditions. Injection scenarios were …

Process Modeling, Operability Analysis, And Techno-Economic Optimization Of Soecs For Sustainable H2 Production, Krishna Murthy Busam

Graduate Theses, Dissertations, and Problem Reports (ETD)

The global imperative to decarbonize energy systems has intensified research into sustainable hydrogen production pathways, as hydrogen emerges as a critical energy carrier for sectors difficult to electrify directly. Among water electrolysis technologies, solid oxide electrolyzer cells operating at elevated temperatures offer the highest theoretical efficiency by utilizing thermal energy to reduce electrical energy requirements, yet comprehensive frameworks integrating electrochemical modeling with process operability analysis and techno-economic optimization remain scarce in the literature. This dissertation develops a process systems framework for proton-conducting solid oxide electrolyzer cells that bridges the gap between fundamental electrochemical phenomena and industrial-scale process economics. At the …

Statistical Analysis Of Evidence In Criminal Cases, Giuliana Leon Carrillo

Graduate Theses, Dissertations, and Problem Reports (ETD)

Ideally, the evaluation of relevant forensic evidence must corroborate the hypotheses that the prosecution and/or the defense holds regarding the commitment of a crime. Therefore, optimal forensic evidence would be the one that can be found all the time under the same circumstances, and cannot be found otherwise, making the forensic scientist able to evaluate this evidence given the hypotheses provided. Nevertheless, this is hard to find, as ideal evidence being only a concept.

In this project, the probabilistic interpretation of relevant forensic evidence investigated in criminal cases with the aid of Wigmore charts and Bayesian networks was proposed. Using …

Optimization Of Carbon Capture And Sequestration In The Tri-State Hub West Virginia, Ohio, And Pennsylvania, Saif Abdullah Saif Al-Nabhani

Graduate Theses, Dissertations, and Problem Reports (ETD)

Carbon Capture and sequestration (CCS) is a critical way for the decarbonization of power and industrial sectors. The Tri-State area between West Virgina, Ohio and Pennsylvania are a diverse region with various CO₂ sources, deep saline, depleted reservoirs, pipeline network, and the midstream infrastructure that makes it possible for Captured CO₂ to be safely and economically moved and stored over long periods of time. This project addresses the need for an integrated optimization framework that includes CO₂ sources to potential storing sites using a transportation network design and a subsurface model that secures storage and minimizes leakage risk.

The model …

Improving The Continuity Of Care For Opioid Use Disorder: Investigating Fentanyl Overdose Outcomes And Pharmacy-Level Buprenorphine Access, Lyn Yuen Choo

Graduate Theses, Dissertations, and Problem Reports (ETD)

Opioid overdose (OD) deaths remain a leading cause of injury-related death in the United States (US) and approximately 76,516 drug OD deaths were predicted in the past year prior to April 2025. While previous research has focused on fatal opioid ODs, less is known about outcomes following non-fatal opioid ODs (NFOO) involving fentanyl. Patients who experienced a fentanyl OD may develop significant morbidity and inpatient mortality due to fentanyl’s high potency, rapid onset of action, and decreased response to naloxone. Research efforts to improve continuity of care for opioid use disorder (OUD) are highly needed to ensure appropriate follow-up care …

Shaping Occupational Self-Efficacy In Complex Jobs: Cognitive Flexibility, Role Stressors, And The Workplace, Carolyn Henn

Graduate Theses, Dissertations, and Problem Reports (ETD)

Career advancement in many professions requires employees to move beyond a single specialized role and perform effectively across different responsibilities. These complex jobs often combine technical work, project oversight, client interaction, financial accountability, and coordination with others. Successfully managing these overlapping responsibilities requires strong occupational self-efficacy, but not much is known about the factors that shape employees’ confidence in their ability to perform in complex jobs, particularly under role stress. This study uses cross-sectional survey data from 132 full-time professionals working in complex, multi-role jobs across a range of industries to examine how cognitive flexibility, role stressors, and job demands …

A Survey Of Disability-Inclusive K-12 Public School Music Programs In The United States Where Best Buddies Friendship Programs Have Been Established, Geena Louise Jeffries Mattox

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study examines the presence and structural characteristics of disability-inclusive band, orchestra, and choir programs serving students with intellectual and developmental disabilities (IDDs) in K-12 public schools across the United States that implement the Best Buddies School Friendship Program. Intellectual and Developmental Disabilities is defined as group of chronic, lifelong conditions that originate before age 22, affecting physical, learning, language, or behavior areas. Despite federal legislation, peer reviewed scholarship specifically addressing access to performance-based music ensembles for students with IDDs remain comparatively limited. Employing a survey distributed nationwide within a defined population of schools implementing Best Buddies Programs, administered via …

Assessing Water Quality In Drinking Water Distribution Systems: Rural Infrastructure Challenges, Hydrodynamic Effects On Biofilms, And Biofilm Contribution To Disinfection By-Products Formation, Vinila Vasam

Graduate Theses, Dissertations, and Problem Reports (ETD)

Access to clean and safe drinking water remains one of the most persistent public health and environmental challenges in the United States. Maintaining water quality after leaving the treatment plant in drinking water distribution systems (DWDS) is a complicated and often overlooked challenge. Most research focuses on water treatment and source water quality, but not on the miles of pipe that follow. Aging infrastructure, complex flow patterns in the DWDS, and limited resources make water quality management especially difficult. This dissertation includes three core studies: 1) A system-level analysis of small and rural utilities in the geographically complex region of …

The Hidden Process Of Student Placements: Perspectives From Slp, Ot, And Pt Coordinators, Almara Jane Sidney Hutchinson

Graduate Theses, Dissertations, and Problem Reports (ETD)

This comparative multi-case study examined the unseen processes behind clinical placement planning in allied health education. Clinical placements are essential to preparing students in speech-language pathology (SLP), occupational therapy (OT), and physical therapy (PT); however, little research has explored how Directors and Coordinators of Clinical Education (DCE/CCEs) navigate the complex decision-making involved in planning these experiences. Guided by Greco and Myers’ (2024) framework conceptualizing placement planning as an interaction between process and experience, this study explored how coordinators described their planning processes and the role of student-centeredness within them.

Semi-structured interviews were conducted with 12 DCEs/CCEs representing SLP, OT, and …

So There I Was, Jesse Marie Baggett

Graduate Theses, Dissertations, and Problem Reports (ETD)

This written thesis provides a description and analysis of my thesis exhibition, So There I Was, which presents a body of ceramic sculptures and paintings that explore themes of adventure, travel, and shared experiences. The work reimagines personal experiences through a cast of animal characters, with a rabbit acting as a stand-in for myself. These narratives are inspired by events from my own life and are transformed into imaginative scenes that emphasize playfulness, wonder, and storytelling.

The sculptures combine toy-like animal figures, pull carts, and miniature architectural structures to create playful environments that resemble playsets or staged scenes where …

New Fossil Mygalomorph Spiders (?Idiopidae, Pycnothelidae) From The Lower Cretaceous Crato Formation Of Brazil, Elis Maria Gomes Santana

Graduate Theses, Dissertations, and Problem Reports (ETD)

The infraorder Mygalomorphae represents one of the earliest-diverging lineages of spiders, but its fossil record remains sparse relative to the modern diversity of the group. This is a reflection of both ecological and preservational biases, such as the predominantly fossorial habits of many mygalomorphs and the strong bias of the spider fossil record toward amber deposits. Compression fossils from rock deposits are therefore especially important for documenting the evolutionary history of the group. Here, two new mygalomorph fossils from the Lower Cretaceous Crato Formation, Araripe Basin (Brazil) are described. The first specimen is tentatively referred to ?Idiopidae based on male …

Evaluation Of The Antimicrobial Activity Of Four Endodontic Sealers Against Streptococcus Mutans And Enterococcus Faecalis Using The Agar Diffusion Test, Dakota Alan Bailey

Graduate Theses, Dissertations, and Problem Reports (ETD)

Abstract

Evaluation of the Antimicrobial Activity of Four Endodontic Sealers Against

Streptococcus mutans and Enterococcus faecalis Using the Agar Diffusion Test

Dakota A. Bailey, D.D.S.

Introduction: The antimicrobial activity of root canal sealers may contribute to the elimination of residual microorganisms that persist following chemomechanical preparation. Limited research has directly compared contemporary bioceramic sealers with traditional sealers against both Streptococcus mutans and Enterococcus faecalis. NeoSEALER EzFlo is a recently introduced bioceramic sealer with limited published antimicrobial data. The purpose of this study was to evaluate the antimicrobial activity of EndoSequence BC HiFlow, NeoSEALER EzFlo, AH Plus Jet, and Kerr Pulp …

Provider Satisfaction Between General Dentists And Endodontists, Vaidehi Kumar

Graduate Theses, Dissertations, and Problem Reports (ETD)

Purpose: Burnout and low professional fulfillment are major issues for dental providers, impacting their well-being, patient care, and workforce stability. While burnout has been widely studied in dentistry, less is known about professional fulfillment and how it varies by specialty and work environment. This cross-sectional study compared professional fulfillment and burnout between general dentists and endodontists, and examined how practice setting, demographics, and job factors affect occupational well-being. Methods: Licensed dentists (n=147; 72 general dentists and 75 endodontists) participated in an anonymous online survey. The Professional Fulfillment Index (PFI) was used to measure three sub-domains: Professional Fulfillment, Interpersonal Disengagement, and …

Behavioral Adaptation To Systematically Changing Local Conditions Of Reinforcement, Kento Yasukawa

Graduate Theses, Dissertations, and Problem Reports (ETD)

Adaptation is the continual process of behavioral change in response to changes in environmental contingencies. One example of adaptation is to track the temporal distribution of reinforcers. The present dissertation investigated how responding tracked cyclically changing reinforcement schedules (i.e., cyclic interval [CI]) and how such tracking was influenced by concurrently available alternative reinforcement schedules. Across two experiments, four pigeons responded under a CI 60-s schedule in which the interreinforcer intervals (IRIs) changed systematically according to a sinusoidal function. The primary dependent variable was postreinforcement pauses (PRPs), with local response rates (response rates per IRI) examined as a secondary measure of …

Real-Time Lidar-Based Vehicle Detection Using Pointpillars For Connected And Automated Vehicle Applications, Jared Townsend Behr

Graduate Theses, Dissertations, and Problem Reports (ETD)

This work explores the implementation of a real-time LiDAR processing model for autonomous vehicle design. Automotive perception systems are becoming increasingly important as Advanced Driver Assistance Systems (ADAS) and Connected and Automated Vehicle (CAV) technologies continue to progress toward higher levels of autonomy. Reliable perception is paramount for autonomous features, such as adaptive cruise control (ACC), where identifying and tracking a lead vehicle is a safety critical task.

Many production ADAS perception systems primarily rely on radar and camera sensors for object detection and sensor fusion. These sensors work well to achieve classification and accurate distance detections; however, they are …

An Evidence-Based Practice Initiative To Promote Debriefing Within The Obstetrics Surgical Team, Rachel Lynn Runatz

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: Operating room debriefing is an evidence-based strategy shown to improve communication, efficiency, patient safety, and safety culture; however, debriefing is inconsistently performed in obstetric operating rooms due to workflow, cultural, and time-related barriers.

Purpose: The purpose of this Doctor of Nursing Practice (DNP) project was to increase the frequency of debriefings in the Birthing Center operating rooms at WVU Medicine Children’s Hospital through implementation of a nurse-driven, evidence-based debriefing initiative.

Intervention: A nurse-driven debriefing protocol was implemented using the Iowa Implementation for Sustainability Framework. Interventions included staff education, accessible laminated debriefing documents, identification of nurse champions, leadership support, and …

Improving Sedative Administration In Patients Receiving Paralytics During Intubation: A Quality Improvement Initiative Within A Large Academic Medical Center In West Virginia, David Bryon Underwood

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: Awake paralysis (AWP) occurs when long-acting neuromuscular blockers outlast short-acting sedatives during intubation, leaving patients chemically paralyzed but conscious. This highlights the critical need for timely post-intubation sedation.

Background: A 2024 review in the Neurological Critical Care Unit (NCCU) revealed that 72% of patients who received rocuronium were not given a post-intubation sedative. The difference in duration of action of paralyzing agents versus sedatives can result in patients being conscious while paralyzed, potentially resulting in hemodynamic instability and psychological harm.

Purpose: The quality improvement initiative aimed to reduce the number of patients receiving neuromuscular blocking agents without post-intubation sedation. …

Video-Based Heart Failure Education: A Feasibility Study, Avery Pivont

Graduate Theses, Dissertations, and Problem Reports (ETD)

Video-Based Heart Failure Education: A Feasibility Study

Avery Pivont

Background:  Heart failure (HF) is a leading cause of hospitalization in the U.S., contributing to high readmission rates and significant healthcare costs. Many of these readmissions are preventable and often stem from inadequate patient education. Effective patient education is a critical component of HF management; however, many healthcare facilities lack specialized HF nurse educators, resulting in inconsistent patient education.

Problem Statement: A quality improvement team at a large academic hospital identified increased heart failure (HF) readmission rates across an entire health system, largely attributed to inconsistent discharge education and limited availability …

The Coal Mining Kids: Constructing A Working-Class Gay World In West Virginia (1900-2001), Hannah Ford

Graduate Theses, Dissertations, and Problem Reports (ETD)

Located in southwestern West Virginia, Bluefield has been the site of Bluefield State University, the Norfolk & Western Railway headquarters, the Baldwin-Felts Detective Agency, and the Shamrock Bar. The Shamrock was a gay bar opened by Helen Compton, in operation from the late 1960’s until 2001. Bluefield’s early industrial success in coal mining and the railroad quickly urbanized the space between 1900 and 1930, facilitating a diverse, working-class cultural foundation for Bluefield’s gay world. In the 1960’s, urban renewal efforts initiated by the War on Poverty, in combination with public awareness of homosexuality induced by the Lavender Scare, set the …

Multi-Omic Characterization Of Immune And Metabolic Responses To Inflammatory Challenges In Sheep, Samanthia Raceine Johnson

Graduate Theses, Dissertations, and Problem Reports (ETD)

To meet the demands of the growing population, it is imperative to develop sustainable and applicable ways to improve animal health and productivity. The first step in doing so is understanding the mechanisms that govern health and immune response and find ways to appropriately modulate them to improve animal health and productivity. The objective of this study is to use multi-omic techniques to understand breed-specific immune responses in sheep that may contribute to their resistance and susceptibility to parasites and to a greater extent, immunocompetence. Known parasite-resistant breed, St. Croix (STC) were compared to parasite susceptible Suffolk (SUF) sheep for …

Macroinvertebrate Response To Two Highway Construction Projects In West Virginia, Brenden Nauman

Graduate Theses, Dissertations, and Problem Reports (ETD)

Highway development and construction are frequently required to provide efficient transportation for an increasing human population. Specific to the Appalachian region, highway development has been a major goal since the mid 1900’s, with the aim of promoting economic growth and ease of travel. While highways provide necessary services to humans, their construction and presence often impact nearby waterways through multiple mechanisms including sedimentation and urbanization. To understand the degree of impact, streams are often monitored using biological data, which can be used to quantify effects. In this work I used freshwater macroinvertebrate communities to monitor changes in stream health surrounding …

Experimental Evaluation Of 100 Ft X 10 Ft Frp Truss Pedestrian Bridge, Ashish Dhital

Graduate Theses, Dissertations, and Problem Reports (ETD)

ABSTRACT

Experimental Evaluation of 100 ft x 10 ft FRP Truss Pedestrian Bridge

Ashish Dhital

FRP truss bridges are now increasingly used in pedestrian bridge applications due to their high strength-to-weight ratio, corrosion resistance, better impact performance compared with conventional materials, and ease of assembly. These advantages make FRP systems attractive for accelerated construction, remote-site installation, and environments where steel or reinforced concrete bridges may experience corrosion-related deterioration. Due to insufficient data on both strength and serviceability (i.e deflection, frequency) performances. Full-scale testing of FRP pedestrian bridges of longer spans (50’-100’) is needed to better understand the dynamic behavior, long-term …

The Effects Of Music Therapy On Anxiety And Sedation Requirements For Total Knee Arthroplasty Patients Undergoing Regional Anesthesia: An Evidence-Based Practice Pilot Initiative, Kyra Marie Savrese

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: Excessive noise in the operating room negatively impacts patient comfort and outcomes, particularly in patients undergoing spinal anesthesia who have the potential for awareness.

Background: Research demonstrates that music therapy is a low-cost, low-risk intervention that reduces perioperative anxiety and sedative requirements. Literature supports the use of music as an adjunct to anesthesia care, especially in orthopedic populations.

Purpose: At J.W. Ruby Memorial Hospital, orthopedic procedures with regional anesthesia expose patients to high noise levels, often leading to increased anxiety, sedation use, and longer recovery times. Addressing this problem aligns with institution goals for safe, patient-centered care.

Methods: Using …

Energy Partition And Heating Mechanisms In Asymmetric Antiparallel Magnetic Reconnection, Aleksandra Abova-Volkova

Graduate Theses, Dissertations, and Problem Reports (ETD)

Magnetic reconnection is a fundamental plasma physics process whereby a change in magnetic field connectivity drives the conversion of magnetic energy into energy of the surrounding plasma, often explosively. One of the many settings where it occurs is at the dayside magnetopause of Earth and other planets, where the magnetic field, number density, and/or temperature in the plasmas on the two sides upstream of the reconnection site are asymmetric. How the incoming magnetic energy gets partitioned into outgoing energies during asymmetric reconnection remains an outstanding question; of special interest is the fraction that gets converted into internal energy of ions …