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Analyzing Viability Of Blue Indium Gallium Nitride Leds For Use In Space Missions Using A Low Earth Orbit Cubesa, Bertrand Edward Wieliczko

Graduate Theses, Dissertations, and Problem Reports (ETD)

The payload capacity of spacecraft is constrained by the weight of the craft itself, including fuel and electronic systems. The protective measures used to shield onboard electronics from the harsh space environment, characterized by high-energy particles and significant temperature fluctuations, can further diminish the available payload capacity. This thesis explores the potential of naturally radiation-hard alternatives to commonly used electronic materials, such as Silicon, to reduce the need for shielding and other protective measures, thereby decreasing the weight and cost of space missions.

III-V semiconductor materials, such as Gallium Nitride (GaN), are known for their inherent resilience to temperature swings …

Occupational Therapy’S Role In Low Vision Throughout The Lifespan, Ka Ki Tse

Graduate Theses, Dissertations, and Problem Reports (ETD)

Low vision and blindness significantly affect individuals' engagement in occupational performance. While West Virginia (WV) offers low vision rehabilitation programs to enhance occupational performance, several challenges remain unresolved. This doctoral capstone project aimed to collaborate with low vision professionals to deliver comprehensive low vision services and advocate for the integration of occupational therapy practitioners (OTPs) in the low vision field. A needs assessment and literature review were conducted to identify gaps and develop strategies for addressing the gaps. A qualitative study design was chosen to explore the perspectives of current low vision providers regarding the role of OTPs. The study …

Investigation Of Deoxyfluorination Of Alkyl Alcohols Using Pentafluoropyridines Through A Covalent Intermediate, Christopher Allen Bias

Graduate Theses, Dissertations, and Problem Reports (ETD)

Organofluorines are an omnipresent class of organic molecules, especially in pharmaceuticals. Selective fluorination of drug molecules allows for the influence of properties including metabolic activity, solubility, and intrinsic potency. Deoxyfluorinations are typically performed via generation of nucleophilic fluoride from a deoxyfluorination agent. Traditionally, diethylaminosulfur trifluoride (DAST) is the reagent of choice for these reactions, and it remains a popular reagent today. However, it has a propensity to form elimination side products and explode. Several research groups have recently developed new classes of deoxyfluorination agents including imidazole-based reagents (PhenoFluor) and sulfonyl fluorides (PyFluor) that exhibit better functional group tolerance and much …

Community Resource Programs Impact On Marginalized Communities Access To Health Care Services: A Program Development Project, Alexis N. Foehrkolb

Graduate Theses, Dissertations, and Problem Reports (ETD)

Caring for children and meeting their needs comes with a variety of considerations regarding temperament, developmental progress, and socioeconomic impact. For children with special healthcare needs (CSHCN), those considerations become more complex. Community resource programs are designed to help families of CSHCN get access to the resources they need regarding general and healthcare services. A program was developed in collaboration with Parents Place of Maryland (PPMD) to create materials effective in educating parents of CSHCN on desired topics of interest, create a virtual environment where parents felt safe asking questions regarding specific topics of interest, and determine the most effective …

Ready Oer Not: Engaging Teachers With Student Identity Through Open Pedagogy, Emily Helton

Graduate Theses, Dissertations, and Problem Reports (ETD)

This research project centers on in-service K-12 teachers’ experiences of a continuing education course about open education resources (OER) and how to use them in ways that support students’ ability to use identity resources while engaging with disciplinary learning experiences. Using a qualitative design-based research approach, I sought to both improve the course and examine how teachers took up the ideas from the course in their planning and teaching. While OER are valuable resources for K-12 teachers in and of themselves because they are free and often available in easily adapted formats, their licensing typically allows edited versions to be …

Eating Concerns And Self-Injury Among Collegiate Populations: A Comparison Of Sexual Orientation Groups, Matthew Kasopsky

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study examined the prevalence of eating concerns and nonsuicidal self-injurious behaviors (NSSIB) in college students seeking services at college and university counseling centers (UCCs), focusing on whether sexual minority students experience these issues at higher rates than their heterosexual peers. Eating concerns and NSSIB are understudied among sexual minority individuals. Previous research has demonstrated that through prejudice, stigma, and social stress, sexual minority individuals may be at a higher risk of developing mental health concerns and conditions than their heterosexual counterparts. The present study used a cross-sectional design to examine data from a sample of collegiate clients nationwide. Data …

Enhancing 5g Fixed Wireless Access In Rural Settings Via Machine Learning-Driven Resource Optimization, Maryam Amini

Graduate Theses, Dissertations, and Problem Reports (ETD)

Providing broadband access to rural communities continues to be an important societal problem whose solution would help to break down the digital divide. While 5G wireless networks may be used for rural broadband, a key challenge is the placement of base stations, which is exacerbated by the use of high frequencies in the millimeter-wave band. Such technology requires an unobstructed line of sight, demanding meticulous planning of the number, height, and location of base stations for optimal coverage. Conventional methods, such as ray-tracing to simulate signal propagation across varied terrain, are computational costly and not feasible for vast coverage areas. …

Application Of High-Resolution Fiber Optic Data To Enhance Completion Design, Christian J. Pacheco

Graduate Theses, Dissertations, and Problem Reports (ETD)

MS Dissertation Defense

By

Christian Pacheco

Title: Application of High-Resolution Fiber Optic Data to Enhance Completion Design Major: Petroleum and Natural Gas Engineering Date: Thursday, April 18, 2024 Time: 4:00 PM Place: 141 Engineering Science Building

Abstract

Well stimulation is a technique that has been used in the industry for decades, and with the ability to drill wells horizontally the practice has become more valuable and effective than ever before. Its use is consistently being optimized and completions design plays a crucial role in the recovery of hydrocarbons. Several different downhole tools and measurements have been used to optimize these …

Uncovering The Emotional Line: An Analysis Of Three David Maslanka Wind Ensemble Works Using Formal Emotive Intensity Analysis, Michael John Kahle

Graduate Theses, Dissertations, and Problem Reports (ETD)

David Maslanka (1943–2017) was a prolific American composer who wrote most frequently for the medium of concert band/wind ensemble. His music is frequently performed by ensembles around the world. Due to his more intuitive and idiosyncratic compositional style, Maslanka would center what he described as the “emotional line” of the work, certain aspects of his music are undetected by traditional analytical models. Formal Emotive Intensity Analysis bridges that gap to focus on the supposed emotional line within Maslanka’s work. Through a case study of three of Maslanka’s works for wind band, The Seeker, Concerto No. 3 for Piano and Wind …

Transparent And Conductive Gallium Oxide Electrode For Simultaneous Recording And Optogenetic Stimulation, Christopher Patrick Carey

Graduate Theses, Dissertations, and Problem Reports (ETD)

Neural electrode technology has been around for centuries since the times of Galvani. In early electrophysiology experiments metal wires were used to induce contractions in dissected animals. The metal wire electrode has since been a standard tool to both stimulate and record neural activity. In the past two decades, a new strategy for neural stimulation has been formulated based on the emergent field of optogenetics. Optogenetics refers to the use of light-sensitive proteins genetically imbedded in the membrane of a neuron to elicit neural activity. This technique offers more selectivity in the stimulation of neurons. Typical optogenetic neural electrodes, or …

Developing The 21st Century Piano Studio, Brianna Mae Eddy

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study explores the needs of the contemporary piano studio, including business policies, the use of technologies, mental health and neurodivergence in students, and the influence and use of social media. Focused on the needs of both the private-studio piano teacher and traveling piano teacher, the paper offers insight into studio ownership and management with an emphasis on providing experiences that meet the needs of contemporary students. The paper includes a brief history of private piano instruction as well as information for developing studio policies, business issues related to current tax requirements and forms, and resources for financial and general …

Mechanistic Insight Into Maternal Electronic Cigarette Exposure And Its Effect On Offspring Cerebrovascular And Neurocognitive Health, Amber Victoria Mills

Graduate Theses, Dissertations, and Problem Reports (ETD)

Electronic cigarettes (Ecigs) have replaced smoking within the last decade as the preferred nicotine delivery system because of their advertising to the younger populations. Marketing has sold the idea that use of Ecigs are safer than smoking and this messaging has resonated with youth and other vulnerable populations such as pregnant women. Despite over 2.8 million children under 18 (Annual National Youth Tobacco Survey) deciding to vape, there is little information about what this will do to the next generation. Further, it is that same population that will soon reach an age when they will want to have children. There …

Selected Piano Etudes From The Mid-20th To 21st Centuries: A Catalogue, Min Ji Baek

Graduate Theses, Dissertations, and Problem Reports (ETD)

Etudes, which initially appeared in the seventeenth century as small collections of exercises, have evolved into significant concert pieces, showcasing the development of virtuosity over time. This study compiles a selected catalog of piano etudes from the mid-20th century to the 21st century, accompanied by brief biographies of each composer. Beginning with a historical overview of piano etudes, this paper catalogs etudes by 50 composers, divided into two chapters that respectively present etudes from the 1940s–1980s and the 1980s–2020s, listed alphabetically by the composer's last name. The final chapter provides a concise summary of the catalogue’s contents, highlighting its potential …

Effect Of Haemonchus Contortus Excretory/Secretory Protein On Differences In Host Neutrophil Migration, Hannah Grace Teddleton

Graduate Theses, Dissertations, and Problem Reports (ETD)

An excretory/secretory (E/S) product, common to many helminths, is neutrophil inhibitory factor (NIF) which negatively affects neutrophil migration and activity. Due to differences in neutrophil accumulation between parasite resistant St. Croix STC and parasite susceptible Suffolk (SUF) sheep, we hypothesized that Hc-NIF may inhibit migration of SUF and not STC neutrophils. Previous studies have demonstrated that Hc produces NIF but is not commercially available. To test our hypothesis, neutrophils were cultured from STC and SUF sheep in the presence of Ancylostoma caninum-derived NIF (Ac-NIF) and measure chemotaxis to Interleukin-8 (IL-8), HcLA or H. contortus third-stage excretory/secretory (E/S) products. Neutrophils were …

Machine Learning And Rna Bioinformatics, Jason Rafe Miller

Graduate Theses, Dissertations, and Problem Reports (ETD)

The applied science of bioinformatics encompasses computational analysis of molecular biology data. Advances in genomics and DNA sequencing technology have enabled computational analysis of ribonucleic acids (RNAs), which play diverse and critical roles in most cells. To assist the study of human RNA, we trained machine learning models on RNA nucleotide sequences, devoid of domain knowledge. We built models that distinguish long non-coding lncRNA from protein-coding mRNA, and models that predict the cytoplasmic vs. nuclear preferences of lncRNAs. In a review of published lncRNA subcellular localization classifiers, we show that the commonly used validation protocol generates optimistic performance measures, and …

Exploring Crystal Polymorphism In Additive-Assisted Chemical Vapor-Deposited Transition Metal Chalcogenides And Oxides, Lawrence Kirimi Mubwika

Graduate Theses, Dissertations, and Problem Reports (ETD)

Crystal polymorphism is a phenomenon in which compounds with the same chemical formula can be crystallized into different crystal structures. This phenomenon can be observed in elemental materials, such as diamond and graphite, as well as in compounds, such as the trigonal (1H) or octahedral (1T) prismatic MoS₂. Crystals can also exhibit polytypism by stacking different polymorphs in a certain order, with the stacking sequence determining the variation between polytypes. Although all polymorphs and polytypes have the same chemical composition, each polymorph and polytype possesses unique electronic and physical properties.

This study explores the additive-assisted chemical vapor deposition …

Selective Recovery Of Various Critical Metals From Acid Mine Drainage Sludge, Gorkem Gecimli

Graduate Theses, Dissertations, and Problem Reports (ETD)

Non-fuel minerals and commodities vital to the modern economy and national security are known as critical minerals. They are essential to modern high-tech industries, defense applications, clean technology, fuel cells, mobile phones, high-capacity batteries, permanent magnets, phosphors, and metal catalysts, among other things. Over fifty elements are deemed essential to varying degrees (European Commission, 2017; Department of Energy, 2020; Burton, 2022). Given their current position, a single supplier or small group of producers can easily dominate the mineral pricing as they supply the majority of these essential minerals. Due to the extended area of usage, ongoing population expansion, and increased …

Reformed-Based Approaches To The Teaching And Learning Of Science, Sahar Vali

Graduate Theses, Dissertations, and Problem Reports (ETD)

This qualitative practice-based study explores the efficacy of reformed-based science teaching approaches in fostering meaningful student engagement within elementary science classrooms, framed within the science-as-practice paradigm. Utilizing three theoretical frameworks, the Next Generation Science Standards (NGSS) and Ambitious Science Teaching (AST), and the Teacher Noticing, this research investigates how these frameworks influence student engagement in scientific disciplinary practices. The study draws on data from an NSF-funded project on teacher noticing in fifth-grade classrooms in West Virginia. Through a practice-based research approach, the relationship between teachers’ pedagogical practices and student engagement in science and engineering practices as outlined by NGSS and …

Teaching Cultural Humility Practices In Appalachia: The Value Of Conducting Conversations Based In Education, Bailey A. Riggs

Graduate Theses, Dissertations, and Problem Reports (ETD)

Recent literature highlights the paradigm shift from utilizing cultural competence practices to cultural humility practices within the field of occupational therapy, and health sciences (Fisher- Borne, et al., 2015). The idea of cultural competency suggests that culture is unchanging, and individuals can master cultural knowledge. The perception of knowing culture can be perceived as an unwillingness to learn about culture. In contrast, cultural humility promotes the value of lifelong learning and introspection, encouraging greater self-awareness, reflection of personal biases, and recognition of power imbalances. This approach aims to better integrate educational approaches to serve diverse populations in a culturally affirming …

Data-Driven Approaches For Achieving Carbon Neutrality: Predictive Models For Reducing Co2 Emissions And Enhancing Industrial Sustainability, Farzana Islam

Graduate Theses, Dissertations, and Problem Reports (ETD)

In response to the escalating challenges posed by climate change and industrial inefficiency, this thesis presents a comprehensive investigation aimed at advancing the predictive modeling of global CO2 emissions and enhancing operational efficiency in steel manufacturing through Electric Arc Furnace (EAF) temperature optimization. Leveraging a rich dataset sourced from the World Development Indicators database alongside a meticulously curated dataset specific to EAF operations, our study applies an innovative blend of econometric and machine learning techniques, including Pooled Ordinary Least Squares (Pooled OLS), Random Effects (RE), Fixed Effects (FE), and Seasonal Autoregressive Integrated Moving Average with Exogenous Variables (SARIMAX) models. The …

Site Specific Probable Maximum Precipitation Implications For High Hazard Dams In West Virginia, Levi Jacob Cyphers

Graduate Theses, Dissertations, and Problem Reports (ETD)

Estimates of probable maximum precipitation (PMP) are necessary for designing the maximum reservoir storage necessary to prevent dam overtopping. Recent investigations in Ohio, Virginia, and Pennsylvania imply that reducing PMP rainfall estimates in West Virginia may be appropriate; however, additional studies in this data deficient region with changing climate is necessary before any reductions are contemplated. The objective of this study was to re-evaluate PMP for the Howard Creek Dam watershed in West Virginia. The 6-hr, 10 mi² PMP was evaluated for current (2019) and projected (2100) climates and compared to the design PMP. Then, the impact of the …

Comparison Between Coronally Advanced Flap With Sub-Epithelial Connective Tissue Graft And Tunnel Technique With Sub-Epithelial Connective Tissue Graft In Achieving Mean Root Coverage At Multiple Recession Defects: A Retrospective Study, Christian Daniel Davila

Graduate Theses, Dissertations, and Problem Reports (ETD)

Aim: The primary objective is to retrospectively compare the mean root coverage (MRC) achieved using a coronally advanced flap and sub-epithelial connective tissue graft (CAF + CTG) with that achieved using the tunnelling technique and sub-epithelial connective tissue graft (TUN + CTG) for the treatment of multiple recession defects. The secondary objectives are to compare the proportion of complete root coverage (CRC) achieved with CAF + CTG compared to TUN + CTG, compare the proportion of CRC achieved in these two techniques with respect to level of training (American board-certified periodontist or Graduate periodontics residents) and to evaluate the …

Machine Learning Maintenance Costs Prediction Model For Heavy-Duty Alternative Fuel And Diesel Vehicles, Esteban Fernandez Villar

Graduate Theses, Dissertations, and Problem Reports (ETD)

Medium- and Heavy-Duty Vehicles (MHDVs) are essential to global logistics and transportation. Around 77% of these vehicles are diesel-powered due to its powertrain mechanical characteristics that make them reliable and energy efficient. However, the environmental implications of diesel combustion, particularly its direct contribution to air pollution and greenhouse gas (GHG) emissions, have increased the interest in alternative fuel vehicles (AFVs). These alternatives include Natural Gas (NG), Propane, Hybrid Electric Vehicles (HEVs), and Battery Electric Vehicles (BEVs), each presenting unique benefits and challenges in terms of required fueling infrastructure, energy efficiency, environmental impact, and total cost of operation (TCO). Maintenance costs …

Lighting The Cylcone, Maren Taylor

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis will give an account of the lighting design process for Ride the Cyclone presented at West Virginia University. Not only will it focus on the role of a lighting designer in a theatrical production but also the production process from the first design meeting to striking the show. I will describe my process, what worked, what new approaches I tried, and evaluate the evolution of the lighting design. In addition, I will include the details of working alongside the other designers in this collaborative process. Research images, paperwork, and production photos will be used to detail the process.

Effects Of Land Cover Changes And Hydropower Development On Fish Communities In Amazonian Floodplain Rivers, Samuel Baron Grinstead Hessburg

Graduate Theses, Dissertations, and Problem Reports (ETD)

In Amazonian River systems, diverse fish communities depend on the floodplains for providing feeding opportunities and critical spawning habitat during the seasonal flood pulse, which annually submerges floodplain forests. In the Amazon, large-scale deforestation and hydroelectric dam construction can have profound impacts on entire ecosystems by altering river-floodplain connectivity. This study attempts to improve understanding of Amazonian fish responses to these two stressors. The first chapter aims to understand how deforestation impacts floating meadow fish assemblages. For this study, we surveyed fish in floodplain lakes along the lower Amazon River, recording their abundance in relation to forest cover and local …

Commonplace, Heather Lepp

Graduate Theses, Dissertations, and Problem Reports (ETD)

The paper as follows will explore the conceptual and aesthetic decisions behind my MFA thesis exhibition titled Commonplace. It will outline my personal history, philosophical outlook, and conceptual framework behind making utilitarian pottery to elevate daily experiences. It will also investigate my individual exploration into beauty in relation to the process of making my work. Formal considerations such as visual, tactile, and functional aspects of the work will be addressed. Sharing, gathering, and preparing food influences me as a maker, and being attentive inspires me to create utilitarian wares that are used as cherished tools to enrich daily life.

Assessment Of Instrument Exploring Underwear Preferences Of Incontinent Geriatric Women In Assisted Living, Cassandra M. Stewart

Graduate Theses, Dissertations, and Problem Reports (ETD)

Urinary incontinence is a urologic condition commonly occurring in geriatric individuals and often results in disability. This affects not only physical functioning, but also psychological and emotional implications. Prior research focused on prevention and using smart technology to improve the current products available to help manage urinary incontinence. Little research has been completed to examine the preferences of geriatric individuals and assess what they are looking for in incontinence products. The purpose of the study was to create an instrument to assess the individual preferences of older adults for these products in a community living environment. Research questions included: (1) …

Puberty-Associated Changes In Kiss1r, Mc3r, And Mc4r In The Ewe, Ashleigh Caitlyn Thomson

Graduate Theses, Dissertations, and Problem Reports (ETD)

The neural mechanisms that control the onset of puberty are not completely understood. In livestock, the onset of puberty relies on an increase in gonadotropin releasing hormone (GnRH) and luteinizing hormone (LH). Kisspeptin, neurokinin B, and dynorphin neurons (KNDy) and their receptors, Kiss1r, NK3R, and KOR, respectively, are important regulators of puberty. Previous data from our laboratory has shown that KNDy neurons may be responding to other inputs, including the melanocortin system, that will affect the timing of puberty. Given this, we examined kisspeptin receptor (Kiss1r) mRNA expression in GnRH neurons as well as examining melanocortin 3 and 4 receptor …

Advances In Machine Learning Aided Seismic Interpretation And Inversion For Subsurface Characterization, Tobi Micheal Ore

Graduate Theses, Dissertations, and Problem Reports (ETD)

Geophysical data are used to “remotely sense” the subsurface to illuminate structures, stratigraphy, and features that are of interest in the exploration for energy, suitable storage for carbon dioxide, geothermal development, and environmental considerations. The interpretations of these data typically are regarded as partially an art, as it depends on the experience of the interpreter. This is further exacerbated with the big data era as this data is large and takes several days, even longer, to manually interpret. To bridge this gap of speed and subjective bias, machine learning has been successfully applied to automate the geophysical interpretation process. This …

When The Right Man Rings Them?, Alan Wayne Cline

Graduate Theses, Dissertations, and Problem Reports (ETD)

This research aims to outline the suitability of Vaughan Williams’s songs to a broader selection of performers, including singers in academic settings and professional musicians around the globe. The significance of Ralph Vaughan Williams's impact on the music world is difficult to question. Among his considerable accomplishments are the editing of the Anglican English hymnal, the advocation for traditional British folk songs as national works of art, the composition of the same number of symphonies as Beethoven and Dvořák, and, most notably for singers, the writing of song cycles and collections of songs. While these accomplishments are significant, his songs …