A Durability Evaluation Of Class B Concrete Bridge Substructures Under West Virginia Freeze–Thaw Conditions, Nathaniel Wayne Dunbar

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study evaluates whether the West Virginia Division of Highways (WVDOH) Class B concrete specification for bridge substructures remains adequate under modern durability and design-life expectations. The current specification, which permits a minimum compressive strength of 3,000 psi, reflects practices established when shorter service lives were generally assumed. Modern AASHTO LRFD provisions are based on a 75-year design life, raising concern that this lower-strength concrete may not provide sufficient durability under West Virginia’s climatic conditions.

To address this issue, bridge inspection data, regional climate mapping, and durability modeling were used to assess the condition and performance of concrete substructures across …

Parameter Estimation Of A 100 Seater Simulated Passenger Aircraft, Michael James Winston

Graduate Theses, Dissertations, and Problem Reports (ETD)

Virtual flight test aircraft provide good opportunities to test new parameter estimation methods. However, good estimates for the parameters in VIRTTAC Castor, a virtual test aircraft, are unavailable. This thesis uses two well-established time domain methods, the Output Error Method and the Filter Error Method, to estimate the parameters of VIRTTAC Castor. Three standard maneuvers were used: Elevator 3-2-1-1, Rudder Doublet, and Aileron Multi-Step. The parameters were estimated across three different flight conditions: weight, altitude and air speed, which resulted in 27 tests for each maneuver. All parameters, and standard deviations estimated are included in the appendix as a table.

Effects Of Environmental And Anthropogenic Gradients On Fish Beta Diversity In Central Appalachian Streams, Alanna Kaylee Lowther Smith

Graduate Theses, Dissertations, and Problem Reports (ETD)

Understanding the environmental and spatial drivers of community composition is essential for conserving freshwater biodiversity. We examined how environmental gradients, land cover, and spatial structure influence fish beta diversity in wadeable streams across West Virginia, USA. We quantified total beta diversity and partitioned it into species replacement and richness difference components and used local contributions to beta diversity (LCBD) to identify compositionally unique sites. Community–environment relationships were evaluated with distance-based redundancy analysis (dbRDA), and a beta regression GLMM was used to test how elevation, slope, land cover, and stream order (factor) predicted LCBD while accounting for spatial structure (dbMEMs) and …

Green Bank Chime/Frb Outriggers Commissioning And Analog System Development, Kholoud Sharif Tag Alkhatem Khairy

Graduate Theses, Dissertations, and Problem Reports (ETD)

The main objective of this thesis is to document the development and commissioning of the Canadian Hydrogen Intensity Mapping Experiment. (CHIME) outrigger at the Green Bank Observatory. (GBO) in Green Bank, WV. This novel cylindrical wide-field radio transient telescope is currently operating in conjunction with CHIME. The CHIME outrigger at GBO aims to contribute significantly to the field of radio astronomy, with implications for both Fast Radio Burst. (FRB) science and broader astronomical research. The construction and commissioning of the CHIME outrigger at the GBO mark a pivotal step forward in pursuing high-precision wide-field detection and localization of radio transients, …

Watershed-Level Survey Of Antimicrobial Resistance From Onsite Wastewater Systems, Trey Franklin Clark

Graduate Theses, Dissertations, and Problem Reports (ETD)

The emergence of antimicrobial resistance (AMR) has quickly become one of the largest global health and development threats. Research related to environmental modes of transmission of AMR has accelerated in recent years, and the US Environmental Protection Agency is particularly interested in this emerging contaminant. Knowledge of how onsite (decentralized) wastewater treatment systems contribute to this issue is lacking, so this research serves to analyze and quantify the environmental dissemination of AMR and fecal contamination from these sources at a watershed level while using statistical analysis to assess relationships between physiochemical, spatial, and sampling parameters. This research surveyed four watersheds …

A Learning History Of A State Physical Activity Plan, Jessica Nicole Riffee

Graduate Theses, Dissertations, and Problem Reports (ETD)

Physical inactivity remains a persistent public health concern in the United States, disproportionately affecting rural populations like West Virginia. To address statewide physical activity challenges, West Virginia developed one of the nation’s first state level physical activity plans, ActiveWV: 2015, that was revised to ActiveWV: 2030. Limited research has investigated how statewide physical activity plans unfold over time or how stakeholder learning can drive improvement.

This dissertation employed a learning history action research methodology to construct a collective narrative of the development, dissemination, implementation, and evaluation activities across both iterations of the West Virginia Physical Activity Plan. Reflective interviews with …

The Professional Backgrounds And Experiences Of Higher Education Trustees And Its Influence On Decision Making, Jade J. Irving

Graduate Theses, Dissertations, and Problem Reports (ETD)

There are many complex decisions that must be made among the board of governors within institutions of higher education. Recent headlines on the decisions of trustees regarding campus closures and consolidations, program cuts, and presidential appointments have put a spotlight on the individuals responsible for making such decisions. This study examined how trustees of public 4-year institutions in the state of West Virginia perceive the value of their professional backgrounds and experiences in fulfilling their governance responsibilities. Using an explanatory sequential design, this study investigated how trustees’ professional experiences shape their decision-making processes through the theoretical lenses of sensemaking theory …

Three Essays On Sustainability Economics, Hélène Flore Nguemgaing

Graduate Theses, Dissertations, and Problem Reports (ETD)

As global economies face increasing resource dependencies and supply chain challenges, it becomes essential to understand the vulnerabilities that threaten economic stability. This dissertation investigates three empirical issues in agribusiness and critical minerals using econometric models to estimate the following: 1) the impact of supply chain disruptions on stock market returns during COVID-19; 2) the extraction of rare earth elements from acid mine drainage treatment by investigating the impacts of ownership and legislation in West Virginia and Pennsylvania; 3) China-to�FOBb (Free-on-Board) price transmission in rare earth elements markets: a copula-based dynamic tail dependence analysis.

The first essay evaluates how events …

A Multi-Case Study Exploring Ncaa Division I Athletic Departments’ Mental Health Culture Through Stakeholders’ Perspectives, Kimberly Ann Granados Tolentino

Graduate Theses, Dissertations, and Problem Reports (ETD)

Despite the NCAA’s ongoing efforts to guide athletic departments into providing sufficient mental health support to student-athletes, psychological well-being continues to be a primary area of concern for collegiate athletes. Student-athletes are as likely as the regular college population to experience mental health issues, but less likely to seek services (Watson, 2005). Researchers have continued to examine the perceived barriers preventing student-athletes from utilization of mental health services which include a lack of knowledge, limited access, and perceived negative stigma (e.g., Harris & Maher, 2023; Yoon & Petrie, 2023). Organizational culture–loosely defined as a group’s accumulated shared learning in which …

Influence Of Deck Area And Average Daily Traffic On The Deterioration Of Bridge Superstructures., Faysal Ahamed

Graduate Theses, Dissertations, and Problem Reports (ETD)

State Departments of Transportation (DOTs) are responsible for maintaining approximately 623,000 bridges across the United States. Effective bridge management requires a comprehensive understanding of the factors influencing structural deterioration. Numerous studies have explored the effects of average daily traffic (ADT) and deck area (DA) on bridge deck deterioration. Given the interdependence between bridge decks and superstructures, it is plausible that ADT and DA significantly influence superstructure condition ratings and deterioration trends. However, their impact on superstructures remains insufficiently studied. In addition, existing studies primarily focus on overall bridge deterioration without adequately differentiating between superstructure designs and materials and maintenance authorities. …

Determination Of Spatial Origin Of Striations On Fired Projectiles, Kaitlin A. Dolan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Firearms examination has been a mainstay of Forensic Science for over a century. One of the principal assessments performed by firearm examiners is the comparison of fired projectiles to a suspect firearm. The AFTE theory of identification, as it pertains to firearms and toolmarks, supports the basis that the barrel of a firearm will impart class and individualizing characteristics onto the fired projectile. The characteristics are developed by the interaction of the projectile surface with the lands of the barrel. Features on the lands, which are incidental to the process of manufacturing, dictate the characteristics observed on the fired projectile. …

Repeatability And Reproducibility Of Minutiae Mark-Up, Lyrek Lockley

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study investigated the repeatability and reproducibility of minutiae mark-up. The use of fingerprints as a mode of identification has been around for thousands of years with contributions from figures like Sir William Hershel, Thomas Taylor, Henry Faulds, Sir Francis Galton and many more. Latent fingerprint impressions can be deposited by the perpetrator of a crime on a variety of surfaces at a crime scene. Many times, fingerprints are the most widely recovered and used evidence from a crime scene. Once fingerprints are collected, they go through the analysis, comparison, evaluation, and verification (ACE-V) process. This study will focus on …

Improving Timely Palliative Care Consultation In The Micu: A Nurse-Driven Quality Improvement Initiative, Sandy Louise Gray

Graduate Theses, Dissertations, and Problem Reports (ETD)

ABSTRACT

Improving Timely Palliative Care Consultation in the MICU: A Nurse-Driven Quality Improvement Initiative

Sandy L Gray

Background: Early palliative care in intensive care units improves outcomes and reduces costs, yet referrals are often delayed. At J.W. Ruby Memorial Hospital’s medical intensive care unit (MICU), baseline median time to consultation was 112 hours (mean=246), exceeding recommended benchmarks and highlighting the need for a standardized process.

Purpose: This quality improvement project evaluated a nurse-driven screening tool to improve timeliness and consistency of palliative care consultations in the MICU.

Intervention: The tool was embedded in the electronic health record (EHR) …

Evidence-Based Lighting Design For Healthcare: Health Effects Of Timed Blue-Light At Night (Blan) On Night-Shift Staff, Seyedeh Nazli Hosseini

Graduate Theses, Dissertations, and Problem Reports (ETD)

The effects of light at night on night-shift clinical staff in healthcare settings is a topic of growing significance, considering the widespread adoption of artificial lighting and the increasing prevalence of night-shift work in the healthcare industry. The intersection of neuroscience and architecture provides a unique lens to explore the intricate relationship between lighting conditions and the circadian hygiene of night-shift medical staff. This project investigates the strategies associated with light exposure schedules for staff during night-shift work in healthcare settings.

Exposure to artificial light at night may contribute to mood disturbances and sleep disorders and consequently affect alertness and …

Simulation Of Annpet For Neural Network Training And System Performance Benchmarking, Pete Martone

Graduate Theses, Dissertations, and Problem Reports (ETD)

Monte Carlo (MC) simulations are often used to provide insight into complex physical phenomenon. They can generate realistic results without the necessity to construct costly and complex apparatus. The ultimate value of these simulations depend on how accurately the physics can be modeled and if a sufficient volume can be produced to account for statistical variance. In medical imaging device development, MC simulations of Positron Emission Tomography (PET) scanners have typically been used to model the performance of new systems. The imaging group in the Department of Radiology have developed a unique detector design for a pre- clinical PET scanner …

Communicated Narrative Sensemaking In The Grandparent-Grandchild Relationship, Madison Clara Martin

Graduate Theses, Dissertations, and Problem Reports (ETD)

Storytelling is a primary form of communication between grandparents and grandchildren that has been shown to strengthen relational bonds and enhance grandchildren’s well-being. However, the specific narrative features and interactional processes involved in grandparent-grandchild storytelling remain underexplored, particularly regarding how they influence well-being and perceptions of generational differences. Guided by Communicated Narrative Sensemaking (CNSM) theory, this study examined the content (story framing) and process (interactional sensemaking behaviors) of grandparent-grandchild storytelling episodes as reported by young adult grandchildren (N = 110). Participants completed an online survey in which they recounted a storytelling episode with a grandparent and reported on individual well-being …

Coming Out To My Christian Loved Ones: Online Workshop Effectiveness For Increasing Lgbtq+ Individuals And Lgbtq+ Ally Communication Efficacy And Impacts On Personal-Enacted Identity Gaps, Samantha Renee Leggett-Bradley

Graduate Theses, Dissertations, and Problem Reports (ETD)

It is not uncommon for passages from the Christian Bible to produce schisms in families, friendships, mentorships, workplace relationships, individual churches, and denominations. These challenging conversations are often around LGBTQ+ topics. Many marginalized LGBTQ+ individuals and allies in these spaces become outgroup members who feel insecure and less confident enacting aspects of their own identities or identities they support. A lack of communication efficacy for how to navigate LGBTQ+ related conversations with Christian loved ones may lead to detrimental physical, mental, and emotional outcomes.

This study surveyed 134 LGBTQ+ individuals and allies as well as conducted semi structured interviews with …

Approaches To The Synthesis Of Highly Substituted Arenes, Kh Tanvir Ahmed

Graduate Theses, Dissertations, and Problem Reports (ETD)

While benzene rings and their derivatives are among the most frequently encountered ring systems in natural products, pharmaceuticals, agrochemicals, dyes, and functional materials, polysubstituted arenes are relatively scarce. The analysis of FDA-approved small molecules provides valuable insights into the characteristics of successful drugs while also highlighting gaps in the availability of synthetic methods capable of efficiently accessing diverse substitution patterns on aromatic rings. Highly substituted arenes are typically synthesized through sequential modification of a pre-existing benzene core; however, this stepwise approach becomes increasingly challenging with each additional substitution. An alternative strategy involves the direct construction of benzene rings via annulation …

Analysis Of The Public Acceptance Of Cryptocurrency In The Central African Republic, Bruno Gbado

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation explores the public acceptance of cryptocurrency in the Central African Republic (CAR), applying the Technology Acceptance Model (TAM) as the theoretical framework. The study adopts a research model and survey instrument derived from a previous published research paper. Data were collected through paper-based surveys from 357 respondents, mostly students and faculty members at the University of Bangui in the CAR. The responses were analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM) with Smart PLS software. The results reveal that increased awareness of cryptocurrency significantly boosts its acceptance, with factors such as perceived ease of use and perceived …

Photocarrier Dynamics In Dielectric And Metal-Dielectric Nanocatalysts In Ambient And Operando Conditions, Sunil Gyawali

Graduate Theses, Dissertations, and Problem Reports (ETD)

Photocatalysis, a promising method for solar-to-chemical energy conversion, relies on sunlight to generate excited charge carriers in catalysts with sufficient lifetimes and mobilities to drive photoreactions. Thin-film semiconductors are essential for reducing charge recombination and enhancing mobility but suffer from a low surface-to-volume ratio problems, resulting in a reduced absorption coefficient and limiting solar-energy-conversion efficiency. Nanostructures address these limitations by enhancing light absorption and surface reactivity. However, efficient photocatalysis also requires that the semiconductor’s band edges align with the redox potential of the desired photoreaction, limiting light absorption to just some of the whole solar spectrum. In hybrid and composite …

Tree Crown Economics Of Broadleaf Deciduous Forests, Yiting Fan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Tree crown architecture, a critical determinant of forest ecosystem processes such as photosynthesis, evapotranspiration, and spectral reflectance, is shaped by adaptive trade-offs in resource use and environmental responses. However, significant gaps remain in our understanding of how these traits vary across species, environmental gradients, and temporal scales. This dissertation addresses these gaps by employing remote sensing data across three interconnected studies. Together, these studies advance tree crown economic theory, highlighting how crown traits mediate trade-offs between light capture and water-use efficiency and how these traits influence forest responses to global change. Collectively, this dissertation offer insights for improving models that …

The Dark Tetrad And The Intention To Invest In Cryptocurrency, Amy Bauer-Sinicin

Graduate Theses, Dissertations, and Problem Reports (ETD)

The Dark Tetrad comprises four distinct negative personality traits with some overlapping qualities: narcissism, Machiavellianism, psychopathy, and sadism. Characterized as being risky and speculative, cryptocurrencies are not backed by government banks like fiat currencies, nor do they offer the same privacy when engaging in transactions.

Narcissists may view cryptocurrency investment as an opportunity to showcase their financial acumen, reinforcing their self-image. Machiavellians see the decentralized, loosely regulated market as ideal for exploiting opportunities through strategic manipulation. Psychopaths, drawn by the market’s volatility, may engage in exploitative schemes for personal gain. Sadists may find satisfaction in the power and control they …

Beyond My Control: The Role Of Sense Of Control On Cognitive Functioning And Depressive Symptoms In Older Adults, Sabine Lohmar

Graduate Theses, Dissertations, and Problem Reports (ETD)

Depression and depressive symptoms commonly coincide with mild cognitive impairment (MCI) and dementia in older adults (Ismail et al., 2017; Panza et al., 2010), with its prevalence varying based on dementia severity, diagnostic criteria, and dementia subtype (Chi et al., 2015; Ismail et al., 2017; Leung et al., 2021; Lopez et al., 2003). This relationship is hypothesized to exist for a variety of reasons, including that depressive symptoms occur as an emotional response to cognitive functioning (Bennett & Thomas, 2014; Richard et al., 2013). Emotional responses may be explained by a decline in sense of control, or the belief in …

A Sense Of Purpose In Life And Efforts To Increase It In Higher Education, Jacob Edwin Alderson

Graduate Theses, Dissertations, and Problem Reports (ETD)

A sense of purpose in life, defined as a dispositional tendency to pursue goals and activities in line with one’s overarching life direction (Hill, 2016), has been discussed as a key individual difference factor to foster in today’s college students (Colby, 2020; Pfund, Bono, & Hill, 2020). As such, the present dissertation sought to understand the psychosocial and academic benefits associated with having a sense of purpose in life in college via two studies: 1. Assessing changes in a sense of purpose in life across the first year of college and how these changes were associated with academic performance and …

An Epidemiological Study Of Finger, Hand, And Wrist Injuries In The Department Of Air Force And Us Workers, Melody Kay Gwilliam

Graduate Theses, Dissertations, and Problem Reports (ETD)

ABSTRACT

An Epidemiological Study of Finger, Hand, and Wrist Injuries in the Department of Air Force and US workers

Melody Gwilliam

Background and Objectives: Fingers, hands, and wrists (FHW) are the leading injured body parts in work-related injuries in the United States (U.S.) and in the U.S. Department of the Air Force (DAF). There has been limited research on risk factors for FHW injuries. Workers across all industries are at risk for these injuries. The objectives of these studies are to 1) describe and compare FHW injuries among enlisted, officer, and civilian U.S. Department of the Air Force (DAF) …

Free Energy Approaches To Understanding The Mechanism Of Membrane-Active Peptides, Hannah R. Scott

Graduate Theses, Dissertations, and Problem Reports (ETD)

Cancer is a leading cause of death in the world today. Current methods of treatment fail to distinguish the difference between cancer cells and cells of healthy tissue, leading to off-target effects, often with terminal outcomes. A potential solution to this challenge is to target the cancer cells’ microenvironment. One universal characteristic across all cancer cells is the acidic extracellular environment. The pH-Low Insertion Peptide (pHLIP) is a membrane-active peptide with acid-sensitive function, undergoing folding and insertion into a transmembrane alpha-helix. pHLIP is a promising candidate to be used to deliver anti-cancer agents exclusively to cancer cells. Although the mechanism …

Assessment Of Analytical Workflows Of Gunshot Residue Evidence And Strategies For Implementation Of Advanced Technology In Crime Laboratories., Leah D. Thomas

Graduate Theses, Dissertations, and Problem Reports (ETD)

The rise in gun violence in the United States has increased the demand on forensic agencies to process evidence promptly and accurately. The exchange of imperceptible traces among objects, suspects, and victims can provide critical insights into the interactions and sequence of events during a crime. Gunshot residue (GSR) is a type of trace evidence that holds significant investigative value in shooting reconstructions. GSR can help identify potential shooters, intermediate targets, and bullet trajectories; however, its analysis is often expensive and time-consuming. Consequently, there is an urgent need for more effective solutions.

Methods for on-site screening can significantly streamline forensic …

Deep Learning-Driven Biometric Security: Advancing Liveness Detection And Anti-Spoofing Techniques, Banafsheh Adami

Graduate Theses, Dissertations, and Problem Reports (ETD)

Biometric authentication has become a key part of our everyday lives—from unlocking smartphones with a fingerprint or face to verifying identities in banks and airports. These systems rely on our unique physical or behavioral traits, making them both convenient and secure. Unlike passwords, biometrics cannot be forgotten or stolen in the traditional sense. However, they are not without risk. One of the biggest concerns is spoofing: attempts by attackers to fool systems using fake biometric traits, such as silicone fingerprints or AI-generated videos.

As generative AI tools become more powerful and accessible, the ability to create convincing fake biometric data …

Reconnection-Driven Electron Acceleration, Ripudaman Singh Nirwan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Magnetic reconnection converts the magnetic energy available in a plasma to the kinetic energy of its constituent particles. In the simplest case, it occurs between anti-parallel magnetic field lines meeting in a plane. Another variant known as ‘component reconnection’ involves field lines reconnecting at an angle, giving a non-zero magnetic field component perpendicular to the plane of reconnection. This component is known as the ‘guide field’ and it is normalized to the reconnecting field in the literature. The guide field controls the particle-scale dynamics of reconnection and influences the ensuing particle acceleration.

Component reconnection occurs in the Earth’s magnetosphere, along …

A Paleobiological And Paleoecological Analysis Of Mississippian Trilobites With Segmentation Abnormalities, April Catherine Cerami

Graduate Theses, Dissertations, and Problem Reports (ETD)

Trilobites are a well-preserved group of arthropods, with a fossil record extending from the Cambrian to the end of the Permian. Abnormalities, such as injuries or teratological defects, have been observed and described in multiple individuals, although investigating how these abnormalities occur in populations has been largely overlooked.

One possible cause of abnormalities in marine arthropods is heavy metal pollution. Such metals can leave individuals more susceptible to teratological deformities and injuries, interfering with the molting and healing process. Here, methods for analyzing elemental composition and preservation of the trilobite cuticle were refined, finding that 30 μm thin sections are …