Digital Commons Network^™

Measuring And Modeling Riparian Wetland Saturated Hydraulic Conductivity, Nutrient Concentrations And Shallow Groundwater Dynamics In An Appalachian Mixed Land Use Catchment, Bidisha Faruque Abesh

Graduate Theses, Dissertations, and Problem Reports (ETD)

The paucity of research on accurate predictions of saturated hydraulic conductivity (Ksat), spatiotemporal analysis of nutrient concentrations relative to water source types (stream and shallow groundwater (SGW)), water flow directions, and land use in riparian wetlands of Appalachian mixed land use catchments underscored the need for this study. Additionally, the lack of SGW flow simulations and stream-SGW interactions using three-dimensional (3D) numerical models (i.e., MODFLOW) in these riparian wetlands further highlighted the research gap. Observed data including soil properties, Ksat, surface water (SW) and SGW levels, and nutrient concentrations, including nitrate (NO3-N), nitrite (NO2-N), ammonium (NH4-N), orthophosphate (PO43-P), total nitrogen …

Enhancing Reservoir Modeling And Simulation Through Artificial Intelligence And Machine Learning: A Smart Proxy Modeling Approach, Andrew Timothy Jenkins

Graduate Theses, Dissertations, and Problem Reports (ETD)

The application of numerical reservoir simulation (NRS) has been a common approach within the oil and gas industry for decades, providing a means to model and forecast dynamic subsurface interactions, as a basis for reservoir management and development decisions. These techniques have expanded to application within carbon capture utilization and storage (CCUS) projects as domestic and global policy shift towards reducing carbon emissions while maintaining the energy needs of our modern society. NRS techniques have become a core process for permitting approval in Class VI (large-scale geological sequestration) wells due to the fundamental similarity of these types of subsurface processes. …

Exploring Physical Activity Promotion And Implementation Within Inclusive Post-Secondary Education Programs: A Mixed-Methods Design, Shannon P. Zimmerman

Graduate Theses, Dissertations, and Problem Reports (ETD)

Adults with intellectual and developmental disabilities (IDD) exhibit lower physical activity levels compared to their non-disabled counterparts, with only 23% of U.S. adults with IDD engaging in the recommended 60 minutes per day of moderate-to-vigorous physical activity. Inclusive Post-Secondary Education (IPSE) programs in the U.S. offer an opportunity to promote physical activity and address the critically low physical activity levels. Few IPSE programs have formalized physical activity courses, warranting an evaluation and development of the national curriculum in this area. This study expands on previous work by examining current physical activity promotion strategies at both the program and course levels. …

Reconstructing Δ14c Production Events Using Tree Rings: Does Tree Physiology Affect Estimates Of Atmospheric Δ14c?, Meagan Rory Walker

Graduate Theses, Dissertations, and Problem Reports (ETD)

Cosmic rays and solar energetic particles (SEP) bombard the Earth’s geomagnetic field, posing a threat to satellites, space stations, and human space exploration. These rays and particles also produce radiocarbon (¹⁴C) in Earth’s atmosphere, thus records of past ¹⁴C concentration in the atmosphere may be indicative of past cosmic and solar activity. Rapid increases in the concentration of atmospheric radiocarbon ¹⁴C, (Miyake events) first identified in tree rings, are thought to be a result of solar eruptive activity triggering the release of solar energetic particles, though the precise nature of past events remains unresolved. The first …

Implementation Of Bayesian Statistics To Answer Diverse Engineering Questions: Applications In Cancer Immunology And Engineering Education, Anika C. Pirkey

Graduate Theses, Dissertations, and Problem Reports (ETD)

Quantitative Systems Pharmacology (QSP) refers to a mechanistic modeling approach used for assessing potential therapeutics by linking the molecular and cellular level mechanisms of the disease and therapeutic to the system-wide dynamics and clinical endpoints relevant to the disease. Although the field of QSP is still in its relative infancy, the mathematical methodology employed to predict the kinetics of these systems are not new and can be applied to a wide variety of systems. For instance, similar to QSP’s goal of guiding the development of novel therapeutics for various disease states, there exists a need to develop novel interventions in …

Additive-Dependent Regioselective Boracarboxylation Of Alkenes Using Low Valent Copper And Co2, Carly H. Gordon Ph.D.

Graduate Theses, Dissertations, and Problem Reports (ETD)

As a major greenhouse gas, carbon dioxide (CO₂) is an abundant and renewable C₁ feedstock, and developing methods for fixing CO₂ into high-value products is a major interest for the movement of greener chemistry. The boracarboxylation of alkenes provides access to difunctionalized products containing pharmaceutically relevant motifs, including carboxylic acids and boron-containing moieties. Significant work has been done to improve the versatility and efficiency of this methodology, with the recent expansion into a wide variety of terminal alkenes. The use of different phosphine and alkene additives have demonstrated positive effects on reaction rates and productivity, indicating …

Something From Nothing: Reimaginings, A Resource Guide For The Horn Sonata By Frank Gulino, Albert J. Houde Iii

Graduate Theses, Dissertations, and Problem Reports (ETD)

Since publishing his first work in 2006, American composer Frank Gulino has been the driving force behind some seventy new pieces of music. With music commissioned and performed by top professionals around the world, Gulino’s star has risen quickly backed by his prowess for writing music for brass instruments in solo works and chamber music. The subject of this document is a sonata for horn and piano entitled Reimaginings, a work commissioned by the author in 2020. This document presents a biographical sketch of the composer, an interpretation for performing the work, and suggestions for learning key skills needed …

Inherently Porous Metal Structures With Sufficient Mechanical Properties Through Direct Writing Of Bio-Based Inks, Havva Eda Aysal

Graduate Theses, Dissertations, and Problem Reports (ETD)

There is currently a burgeoning interest in developing 3D printed metal structures with inherent porosity and sufficient mechanical properties for mass customization in the biomedical field. Current approaches for 3D printing of biocompatible metals rely on powder-bed fusion methods which are energy intensive and utilize large amounts of metal powder that is challenging to recycle. In addition, such methods aim on producing dense parts and porosity generation, within the printed part, is challenging due to the complex physics of the melting pool. Here, a relatively new and promising approach is undertaken to study the 3D printing of inherently porous structures …

A Quality Improvement Initiative To Reduce Preanalytical Blood Gas Errors, Layla Haver Newbrough

Graduate Theses, Dissertations, and Problem Reports (ETD)

Abstract

Introduction: Laboratory testing is one of the most commonly performed procedures in healthcare and resulting data are paramount to clinical decision making. Background: Preanalytical blood gas laboratory errors often stem from the incorrect recording of a patient’s fraction of inspired oxygen (FiO2) within the laboratory collection application. Incorrect FiO2 may cause erroneous results or delays in reporting results that have the potential to negatively impact patient safety and medical management.

Purpose: The purpose of this quality improvement initiative was to reduce the occurrence of preanalytical blood gas laboratory errors. Methods/Interventions: This initiative combined modification of the laboratory collection application …

Genetic Knowledge And Causal Beliefs: Implications For Health Behavior In Clinical And Non-Clinical Samples, Jamey T. Brumbaugh

Graduate Theses, Dissertations, and Problem Reports (ETD)

Objective: As the genomic era in healthcare continues to surge, it is vital to examine genetically-related psychological concepts, such as genetic knowledge and genetic causal beliefs, in genetically relevant clinical groups. Parents /caregivers of children born with cleft lip and/or palate represent a population whose knowledge and beliefs about genetics may be influenced by their frequent utilization of genetically-related healthcare services (e.g., genetic testing and genetic counseling). To date, little is known about how such beliefs vary across disease types. Even less is known regarding how disease-specific genetic causal beliefs relate to perceived behavioral control for disease development. Method: A …

Taking The Red Pill: A Content Analysis Of Ambivalent Sexism And Precarious Manhood In Alpha Male Podcasts, Madalen Lea Fields

Graduate Theses, Dissertations, and Problem Reports (ETD)

Podcasts have become increasingly popular across various platforms (e.g., Spotify or Apple podcasts). A more recent trend is the emergence of “alpha male” podcasts. The goal of these podcasts is to instruct young men how to stop being “betas” and on achieving “alpha male” status. These podcasts are a subset of the manosphere, a term used to describe media focused especially on hegemonic masculinity, which is characterized by their promotion of misogynistic beliefs and sexist rhetoric. Drawing upon social science research, three forms of sexism (i.e., ambivalent sexism, precarious manhood and violence against women) serve as analytical frameworks for understanding …

Reconceptualizing South Asia: Bangladeshi Literature And The Politics Of Representation, Qazi Arka Rahman

Graduate Theses, Dissertations, and Problem Reports (ETD)

I explore Bangladeshi literature’s specificity and contributions in the context South Asia. This project expands the existing oeuvre of South Asian literary and postcolonial studies by bringing Bangladeshi literature into current debates on nation, nationality, and identity. I investigate the role of literary texts in developing a national ethos by doing analysis of twentieth to twenty-first-century Bangladeshi novels – in English and Bangla – to argue the necessity of developing a temporal understanding of South Asia rather than a spatial one. The dissertation demonstrates how Bangladeshi novels have contributed to and subverted the idea of “imagined community” following Bangladesh’s independence …

Risk Of Parasiticides To Dung-Associated Beetles In West Virginia, Haylie J. Brown

Graduate Theses, Dissertations, and Problem Reports (ETD)

Ecosystem services provided by dung-associated beetles, such as reducing pasture fouling, parasite suppression, supporting nutrient recycling, and increasing water infiltration, contribute to animal and pasture health. However, parasiticides used to manage cattle parasites, particularly flies and helminths, in West Virginia, can adversely affect these non-target beetles. We assessed the exposure and impact of some parasiticides used in WV including Clarifly^® (active ingredient [a.i.] diflubenzuron), Cydectin^® (a.i. moxidectin), LongRange^® (a.i. eprinomectin), and Safe-guard^® (a.i. fenbendazole). In Chapter 1, we review the use of parasiticides in the US and their non-target effects on beneficial dung-associated beetles. In Chapter …

Corporate Tax Competition: An Examination Of National Tax Reaction Functions To Corporate Tax Rate Reductions In Other Countries, Yaw O. Awuah

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation primarily examines tax competition at the national level, with a particular focus on the tax reaction functions of countries within the Organization for Economic Cooperation and Development (OECD). There are three different studies in the dissertation. The first study uses the Tax Cuts and Jobs Act of 2017 (TCJA) as a setting to empirically examine whether members of the OECD reduced their own statutory corporate tax rates in response to the US statutory corporate tax cut ushered in by the TCJA in a process of tax competition. The second study is a non-empirical examination of tax competition and …

An Examination Of The Underlying Implications Of Environmental, Social, And Governance Measures On Firm Practices, Lewis James Hardway

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation is comprised of three studies that seek to determine the impact environmental, social, and governance (ESG) policies and initiatives have on different levels within the firm. The first study takes a page from business management research. It proposes a moderated mediation model of leader-member exchange and its effects on corporate entrepreneurship. Corporate entrepreneurship seeks to engage employees in bringing forward new ideas to enhance the firm’s position and aligns with the social aspects of ESG, especially those concerning employee stakeholder matters. This study finds that through psychological empowerment, high-quality relationships can bring forward increased engagement by individuals in …

Testing A Conceptual Model Of Age, Gender, Perceived Discrimination And Well-Being, Kelly Smith

Graduate Theses, Dissertations, and Problem Reports (ETD)

Both age and gender are personal characteristics that are at least in part outwardly visible and act as a category for social judgments (Cuddy & Fiske, 2002). The current study examined associations among individuals’ views on their aging, their gender typicality, well-being, and perceived discrimination. Research Question 1 asked whether views on aging and gender typicality interact to influence perceptions of discrimination; Research Question 2 explored the same potential interactions’ influence on well-being. Research Question 3 explored whether any interaction between views on aging and gender typicality and well-being was mediated by perceptions of discrimination. Participants represented the adult life …

Experimental And Chemical Modeling Of Applied Dc Electric Field Induced H2 – Air Axisymmetric Laminar Co-Flow Diffusion Flames With Low Carbon Impurities, Susith Dilshan Pathmasiri Gunamuni Halowitage

Graduate Theses, Dissertations, and Problem Reports (ETD)

The effect of externally applied DC electric fields on flame structure was investigated in a stationary atmospheric axisymmetric laminar H₂–Air flame with less than 100 ppm carbon equivalent impurities. Flame OH chemiluminescence signals were recorded using a UV-sensitive CCD array as a function of voltage (+10 to -10 kV) applied to a stainless-steel ring electrode placed around the burner nozzle. Changes in chemiluminescence signal are reported as a function of electrode height above the burner, airflow, and fuel composition. Significant changes in OH* distributions were observed for voltages below -5 kV. Under optimum conditions, the height of the …

Lgbtq+ Clothing Habits In Appalachia, Kirstyn Korte

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study investigated clothing preferences among cisgender queer women within Appalachia and whether they used these preferences to identify their own peers. It also further investigated whether they use clothing as a tool to conceal or reveal their own LGBTQ+ identity. Participants were invited for two interviews each. Between interviews, there was a one-week rumination period for each woman. The women reported themes of using clothing to blend in with their hetero-normative surroundings as they grew up and now lean into a more alternative style and less narrow-minded view of clothing. Perspectives gained from interviewees lined up with current knowledge …

Studies In Nonlinear Chemical Dynamics Of Propagating Precipitation Waves, Md Boshir Ahmed

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation explores the intricate dynamics of pattern formation in nonlinear chemical systems, specifically focusing on the phenomena of propagating waves and Liesegang patterns in aluminum and zinc hydroxide systems. Through a combination of experimental setups and theoretical models, the study delves into the mechanisms driving these patterns, providing insights into their formation, evolution, and underlying principles.

The research begins with an introduction to nonlinear dynamics and pattern formation, emphasizing the significance of these concepts in understanding complex natural systems. It then moves into a detailed examination of Liesegang bands, discussing classical and reverse systems, and introducing the redissolution process …

Regulation Of Diabetic Cardiomyopathy Through Mitochondrial Import Of Long Non-Coding Rnas, Andrew Dodge Taylor

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: The leading cause of mortality in patients with diabetes mellitus is heart failure. When mitochondrial health and function is disrupted, cardiac contractile function is compromised. Therefore, understanding mitochondrial regulation may benefit predicting and countering diabetic cardiomyopathy. MicroRNAs (miRNAs) play a crucial role in diabetic cardiac mitochondrial protein expression. Long noncoding RNAs (lncRNAs) have been shown to regulate miRNAs, but not in the mitochondrion. Additionally, it has yet to be confirmed if lncRNAs utilize the same mechanisms for mitochondrial import that miRNAs use, or if lncRNA presence in the mitochondrion fluctuates in diabetic mitochondria like miRNA presence does. The …

On Uncertainty For Ill-Posed Robot Decision Problems, Jared Joseph Beard

Graduate Theses, Dissertations, and Problem Reports (ETD)

As robots adopt more real world responsibilities, they will be expected to solve more complicated problems. In some cases limited prior knowledge will result in unmodelled environmental conditions; in others, multiple users may have competing perspectives on how to frame a decision problem. Many existing frameworks, namely Markov decision processes (MDP) presuppose users have identified a specific problem with models sufficient to solve or learn a problem. If we wish to extend MDPs to novel problems or those heavily dependent on user feedback, autonomous decision makers must be able to identify limitations in how a given problem is framed and …

Historical Evolution Of The Late 20th-Century Maritime Claims, The Concept Of The Nine-Dash Line, And The Dispute In The South China Sea, Kamil Nowak

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study discusses the origins and development of the South China Sea dispute. It briefly analyzes the overlapping maritime claims, their justifications and legal aspects, and key clashes between the actors across the second half of the 20th century. It uses a historical perspective to assess the present-day conflict. The study discusses the impact of international agreements, national policies, claimants' domestic factors, and external influences connected to the geopolitical situation of the period to determine how they influenced the dispute. The analysis reveals that amidst more pressing global events, the South China Sea issue was frequently overlooked by the international …

Planar Semiconductor-Superconductor Topological Quantum Devices: Realistic Modeling Tools, Purna Prasad Paudel

Graduate Theses, Dissertations, and Problem Reports (ETD)

Planar semiconductor-superconductor (SM-SC) heterostructures hold significant promise for realizing topological superconductivity and hosting Majorana zero modes (MZMs) --- particle-hole symmetric quasiparticle excitations that emerge as localized zero-energy modes either at the edges of one-dimensional topological SCs or at the vortex cores of two-dimensional topological SCs. Due to their non-Abelian exchange statistics and topological protection, MZMs are prime candidates for constructing topological qubits and achieving fault-tolerant topological quantum computation. Despite notable progress, significant experimental and engineering challenges remain to realizing functional MZM-based qubits. One major challenge is the small topological gap achievable in these systems, rendering MZMs fragile against disorder. Additionally, …

Astrocyte Reprogramming By Th17 Cells In Autoimmune Neuroinflammation: Mechanisms And Implications, Sarah Marie Milne

Graduate Theses, Dissertations, and Problem Reports (ETD)

Multiple sclerosis (MS) is a cell-mediated, demyelinating autoimmune disease that affects the central nervous system (CNS). T helper (Th) 17 cells mediate the pathogenesis of MS and its animal model, experimental autoimmune encephalomyelitis (EAE), in part by infiltrating the CNS and interacting with astrocytes, a resident glial cell. Astrocytes are central to coordinating several inflammatory processes in the CNS and can respond to cytokines and chemokines produced by encephalitogenic Th17 cells. Pathogenesis of MS and EAE requires the infiltration of immune cells from the periphery, including autoreactive T cells, B cells, monocytes, and neutrophils, that lead to neuroinflammation, demyelination, and …

Multidisciplinary Approach To Injury Rehabilitation: The D1 College Athlete Perspective, Lindsey Leatherman

Graduate Theses, Dissertations, and Problem Reports (ETD)

Sport injuries continue to be unavoidable disruptions in student-athletes’ athletic careers with over 200,000 injuries estimated to be reported each year in college sport (Kerr et al., 2015). Researchers continue to emphasize the importance of an interprofessional approach to rehabilitation to help athletes manage the adverse psychological and emotional reactions to injury (Appaneal et al., 2009; Gervis et al., 2020; Putukian, 2016). The purpose of this study was to extend and replicate the research of Clement and Arvinen-Barrow (2021) by incorporating perspectives of Division I US student-athletes. The current study describes 321 NCAA Division I collegiate athletes’ experiences of receiving …

The Effects Of Diet-Induced Obesity On Cerebral Microvascular Bioenergetics, Alec Anthony Hanshew

Graduate Theses, Dissertations, and Problem Reports (ETD)

Obesity is a worldwide epidemic but is especially a concern in the United States with over 40% of the population being obese. Obesity is known to cause increased metabolic demand, systemic inflammation, peripheral vascular dysfunction, and increased levels of oxidative stress and reactive oxygen species (ROS). However, the role of obesity on cerebrovascular bioenergetic function has not been fully elucidated. This study aimed to determine the impact of diet-induced obesity on cerebrovascular bioenergetics. 72, 6-month-old C57Bl/6 male and female mice were randomized into control and HFD groups. Control mice were subjected to the feeding of standard chow (18% fat, 24% …

Development Of Lab-On-A-Chip Platforms Incorporating A Novel Acoustic Atomization Induced Pump Based On A Vibrating Sharp Edge Capillary., Balapuwaduge Lihini Tharanga Catherine Mendis

Graduate Theses, Dissertations, and Problem Reports (ETD)

Capillary Vibrating Sharp-edge Ionization device (cVSSI device) was developed by our laboratory with a low cost and an easy fabrication procedure. The generation of small liquid droplets by this technique has been used as an ionization source for mass spectrometry analysis platforms. On usual applications incorporating the cVSSI device a syringe pump was connected to the back end of the vibrating sharp tip capillary to ensure continuous loading of sample into the capillary to sustain the ionization process at the tip end of the vibrating sharp tip capillary. We were able to observe that upon the generation of droplets the …

Assessing Carbon Sequestration Of Mixed Hardwood Forests Through Optimizing Harvesting Strategies And Biomass Utilization For Biochar, Bibek Aryal

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study investigated the long-term carbon stock of central Appalachian mixed hardwood forests under several harvesting strategies. The strategies were optimized to maximize both long-term carbon sequestration and timber supply during harvest using Mixed-Integer Linear Programming (MILP) models. Clear-cut (CC), Partial cut (PC), and mixed harvesting methods to unharvested conditions over 190 years were studied. Initially, harvested forests showed lower sequestration rates than unharvested forests but eventually surpassed them, with CC showing the highest rates over time. Younger forests, particularly those aged 85 to 130 years, exhibited peak carbon sequestration rates. Regarding carbon stock, the unharvested scenario initially had the …

Love And Solitude In Latin America: An Actor’S Take, Performing Graciela In Diatriba De Amor Para Un Hombre Sentado By Gabriel Garcia Marquez, Claudia C. Sevilla

Graduate Theses, Dissertations, and Problem Reports (ETD)

In this thesis I take a journey through twentieth century Latin America through inhabiting the role of Graciela created by the late great Gabriel Garcia Marquez in his only work of theatre. Through detailed historical research I explore human topics such as marriage and isolation embodied in Graciela that in a sense mirror a people and a continent. The challenges of producing a play with no budget or partners and the freedoms and constraints of performing a one-person show, which included an audience that does not speak the language the play is written in. How does an actor adapt to …

Dynamic Load Identification Using Optimal Sensor Placement And Dynamic Condensation Methods, Iole Pecora

Graduate Theses, Dissertations, and Problem Reports (ETD)

Knowledge of excitation loads that structures experience during their service life is pivotal in different engineering fields, not only from a structural design optimization point of view but also as prevention of possible damages to the structures themselves. However, in case of dynamic events such as tornadoes, structures subjected to impulsive load due to their vicinity of explosions, the excitation load cannot be directly determined through direct measurements. In these scenarios, the inverse problem is used, and it is called load identification. This type of problem tries to determine the excitation load knowing the system response through a series of …