Digital Commons Network^™

Increasing The Reliability Of Software Systems On Small Satellites Using Software-Based Simulation Of The Embedded System, Matthew D. Grubb

Graduate Theses, Dissertations, and Problem Reports (ETD)

The utility of Small Satellites (SmallSats) for technology demonstrations and scientific research has been proven over the past few decades by governments, universities, and private companies. While the research and technology demonstration objectives that can be provided by these SmallSats are becoming similar to larger spacecraft, their reliability still falls behind. This is in part due to the reduced cost of SmallSat missions in comparison to large spacecraft, which requires cheaper components, rapid development schedules, and accepted risk. In these missions, the importance of the flight software is often overlooked, and the software is rushed through development and not fully …

Describing A Putative Corollary Discharge Circuit In Drosophila, Kaitlyn Nicole Boone

Graduate Theses, Dissertations, and Problem Reports (ETD)

Corollary discharge (CD) circuits provide critical information about movement and behavior to provide context to sensory processing. However, to date, there has not been a comprehensive study of CD circuits at a single-cell level. In this thesis, I aimed to resolve the connectivity of ascending histaminergic neurons, consisting of two pairs, the mesothoracic pair (MsAHNs) and metathoracic pair (MtAHNs) at a single-cell level and characterize contexts of activation. Using transgenic techniques, connectomics and transcriptomics, we identify neural populations receiving input from the AHNs and neural populations with significant output to the AHNs. We explored where the AHNs predominantly receive synaptic …

Erosion And Sediment Controls On Reclaimed Mine Refuse Impoundments, Sara Dalen

Graduate Theses, Dissertations, and Problem Reports (ETD)

To ensure the sustainable use of one of West Virginia’s precious resources, conscientious long-term management of residual waste is of immense importance. This thesis examined two main topics: i) the dewatering process of acid mine drainage (AMD) sludge, and ii) an investigation of soil loss predictions of a reclaimed coal refuse impoundment.

The first aspect of this thesis addresses clarification and remediation of AMD prior to disposal is a prominent component to preventing runoff and seepage of environmentally detrimental byproducts. To examine the effects of flocculation and dewatering more closely by means of geotextiles, an AMD sludge was analyzed. The …

#Canceled: Positionality And Authenticity In Country Music’S Cancel Culture, Gabriella Saporito

Graduate Theses, Dissertations, and Problem Reports (ETD)

From its beginning in film and television and its early adoption by Black Twitter, cancel culture has become a phenomenon in the era of social media. Marked by the popular hashtags #cancel, #canceled, #[InsertNameHere]isOverParty, and #Surviving[InsertNameHere], cancel culture is a practice which involves publicly denouncing and/or shaming a person or company when they do something that is considered offensive or objectionable. It saw a resurgence in the era of #MeToo that has not slowed down in an age dominated by social media presidents and global pandemics. Cancel culture has also seen a recent re-adoption by the political right, which begs …

Causal Determinants Of College Success, Benjamin Blemings

Graduate Theses, Dissertations, and Problem Reports (ETD)

The first essay focuses on alcohol access in college, which is an impediment to many students' success. Alcohol sales to general seating at college football games has been broadly adopted despite results suggesting greater alcohol availability increases crime and college alcohol abuse. Using differences-in-differences, this paper estimates how allowing alcohol sales in college football general seating sections affects crime. Reductions in crime are found after sales are allowed. After sales begin, those under the age of 21 are still not legally permitted to purchase in-stadium alcohol, but are still affected by changes in other stadium policies or law enforcement strategies. …

Three Essays On The Impact Of Cuteness On Consumer Behavior, Alexis Taeeun Yim

Graduate Theses, Dissertations, and Problem Reports (ETD)

Over the last decade, the world has seen a rise in the popularity of cute stimuli. Adorable baby pictures, fluffy puppy videos, and whimsical emojis seem ever-present in social media news feeds and friends’ posts. In addition, products marketed toward adults that feature cute characters drive sales worth billions of dollars. The growing presence of cute stimuli in our daily lives is accompanied by emerging research on their social and behavioral impacts. Correspondingly, the current dissertation consists of three essays that contribute to the literature on cuteness by empirically testing the impacts of cuteness in the marketplace. To extend the …

Exploring Early Signaling Associated With Complex Stressors, Julia A. Penatzer

Graduate Theses, Dissertations, and Problem Reports (ETD)

Humans are constantly exposed to a vast number of stressors in our everyday lives from social interactions to physical activity to chemical exposures, to name a few. These stressors have significant impacts on an individual, from the cellular to whole organismal level. The body contains an intricate communication system that elicits a number of both biological and physiological responses as it attempts to maintain homeostasis. Observing these responses to stressors, can offer insight into a number of outcomes, which can be beneficial (increasing life longevity) or detrimental (leading to a disease state). By measuring specific biological adaptations at particular time …

The Memorization, Preparation, And Performance Of Piano Music: Cognitive Foundations And Current Neuro-Music Research, Amy M. Simpson

Graduate Theses, Dissertations, and Problem Reports (ETD)

Memorization of piano music for performance has often been shrouded in mystery. A body of neuro-music research has emerged, mostly in the last twenty years, that addresses how musicians perceive, learn, and memorize music, and how these processes operate in music performance. This paper is a compendium of current research on music perception, learning, memorization, and performance, specifically focused on piano music and piano performance. It is intended to benefit both pianists (performers, teachers, students), and neuro-music researchers.

This research explains the operation of human memory systems and, from this platform, addresses aspects of music memorization such as multi-modal approaches …

Advancing The Spatial Turn In History Through Deep Mapping: Ghost Maps, Neogeography, And Frederick Jackson Turner, Jessica L. Mathai

Graduate Theses, Dissertations, and Problem Reports (ETD)

The permeation of the spatial turn into the humanities, and in particular history, has both imbued scholarship and opened up new areas for research. This dissertation examines the conceptual and theoretical implications of advancing the spatial turn in history and evaluating existing approaches such as Historical GIS and ghost mapping as a foundation for deep mapping. The resulting deep map developed in this study utilizes Neogeography and web technology in the form of JavaScript Application Programming Interfaces (APIs) to develop a prototype that overcomes many of the limitations that occur when simultaneously integrating multiple sources of data and software functionality, …

A Selective Study On Chinese Art Songs After 1950, Gehui Zhu

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this paper is to provide an insightful study of Chinese art songs after 1950. A number of works have been written in English about the repertoire of Chinese art songs, but most of these studies concentrated on songs written before 1950. It is difficult for English speakers to find and study Chinese art songs after 1950. In fact, they have largely been ignored. However, these songs have significant pedagogical and aesthetic values. This study aims to provide musicians and voice teachers a handy and practical tool to study and sing Chinese art songs composed after 1950.

This …

Biological Conversion Of Carbon Dioxide To Value-Added Chemicals, Owen James Mcgrath

Graduate Theses, Dissertations, and Problem Reports (ETD)

As Carbon Dioxide (CO₂) levels in the atmosphere continue to rise due to human intervention, there is increased urgency to take actions to mitigate the potential ramifications. Many countries have instituted a CO₂ tax and have provided funding to finding potential solutions to our growing CO₂ problem. Further investigating CO₂ capture, sequestration, and utilization is key to combating rising CO₂ levels and methods being investigated have increased substantially in recent years. Converting CO₂ into fuels and value-added chemicals provides a unique opportunity to create materials of value from a substance that is being …

Next-Generation Re-Entry Aerothermodynamic Modeling Of Space Debris Using Machine Learning, Nicholas Sia

Graduate Theses, Dissertations, and Problem Reports (ETD)

The number of resident space objects re-entering the atmosphere is expected to rise with increased space activity over recent years and future projections. Predicting the survival and impact location of the medium to large sized re-entering objects becomes important as they can cause on ground casualties and damage to property. Uncertainties associated with the re-entry process makes necessary a probabilistic approach, which can be computationally expensive when using high-fidelity numerical methods for estimating aerothermodynamic properties. To date, object-oriented analysis is the dominant tool used for atmospheric re-entry modeling and simulation, where aerothermodynamic coefficients are used to determine the risk a …

Effects Of 4-Methylcyclohexanemethanol On Stress Response Pathway Regulators, In Saccharomyces Cerevisiae, Suk Lan Ser

Graduate Theses, Dissertations, and Problem Reports (ETD)

Hydrotropes are small molecules capable of inducing liquid-liquid phase separation by altering the solubility and conformation states of organic compounds that are increasingly becoming important in organizing chemical reactions and regulating complexes. They prevent protein aggregation causing these proteins to form condensates. Mediator, a highly conserved multi-subunit complex, plays an important role in transcription. Med15, a subunit found within the tail domain of the Mediator complex, works with stress-induced transcription factors and is regulated by many kinases, including CDKs and the AMP kinase, Snf1. Living cells respond by changing molecular and cellular pathways when they are exposed to stressful conditions. …

Grouping Algorithms For Informative Array Testing In Disease Surveillance, David Sokolov

Graduate Theses, Dissertations, and Problem Reports (ETD)

In order to maintain normal operations and prevent unnecessary morbidity and mortality during times of disease outbreak, institutions find a need to conduct frequent and widespread testing of their constituents, often under significantly limited testing resource constraints. Faced with the challenge of how best to allo- cate these limited resources to maximum effect, institutions are increasingly turning to group (or “pooled”) testing, which involves testing strategically-chosen groups of patient samples rather than individual samples, producing significant testing resource savings under certain regimes of disease prevalence. While group test- ing can be conducted without any a priori knowledge of individual disease …

Transform Based Approaches For The Detection Of Astrophysical Signals, Marwan Mahfud Alkhweldi

Graduate Theses, Dissertations, and Problem Reports (ETD)

Development of new algorithms for the detection of isolated astrophysical pulses is of interest to radio astronomers. Both Fast Radio Bursts (FRBs) and several Rotating Radio Transients (RRATs) were detected through the application of a single pulse search algorithm. The conventional approach to detect astronomical pulses requires an exhaustive search for the correct dispersion measure. Its accelerated versions involve signal processing in Fourier transform space.

In this dissertation, we present several new transform-based approaches for the detection and analysis of astrophysical signals with the latest being the most effective and advanced of all. It is implemented in several steps. First, …

Using Molecular Dynamics To Characterize The Relationship Between Membrane Components And Dynamics And Supramolecular Organization Of Membrane Proteins, Eric Sefah

Graduate Theses, Dissertations, and Problem Reports (ETD)

Molecular dynamics (MD) simulations have gained impetus as a technique for elucidating structural and dynamical information about membrane proteins (MP). In particular, coarse-grained (CG) MD simulations have provided valuable information about the relationship between membrane components and supramolecular organization of MPs. In this work MD simulations are used to characterize the effects of hopanoids on bacterial membrane dynamics and association in a model protein proteorhodopsin (PR), as well as the role of the extended C-terminus of the human adenosine receptor (A_2AR) on its dimerization. PR is found to dimerize in a manner that is dependent on both the …

Novel Mechanisms Of Neuronal And Hormonal Regulation Of Large Intestinal Electrolyte Transport, Andrew John Nickerson

Graduate Theses, Dissertations, and Problem Reports (ETD)

The mammalian colon plays a vital role in maintaining overall electrolyte and fluid homeostasis in the body, and it possesses the ability to either secrete or absorb water depending upon the needs of the organism. Secretion or absorption of electrolyte ions, such as Na⁺, Cl^- and K⁺, drives the movement of water across the colonic epithelium – the inner gut lining where all transport takes place. Aberrant absorptive and/or secretory activity within the colonic epithelium is central to the pathogenesis of many gastrointestinal diseases, such as irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), constipation …

Language Choice On Psychological Reactance In Instructor/Student Email Exchanges, Christiana Robey

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis investigated undergraduate students’ perceptions and interpretations of language cues used within instructor email requests. Guided by Psychological Reactance Theory (PRT; Brehm, 1966; Brehm & Brehm, 1981), this thesis examined whether instructor email requests, containing different levels of powerful language and verbal immediacy cues, would impact students’ willingness to follow through with instructor requests. Two hundred thirty-four undergraduate students participated in the four-condition experiment which consisted of the email manipulation conditions containing varying levels of an instructors’ powerful language (e.g. “must;” Miller et al., 2007) and verbal immediacy (e.g., “our class;” Witt & Wheeless, 2001) cues. After reading an …

Getting Connected: Exploring The Role Of Sustainability Labels In Tourism Marketing Communications, Elvira Kizilova

Graduate Theses, Dissertations, and Problem Reports (ETD)

While sustainability has become an important brand differentiator in many industries, current research suggests that tourism businesses rarely use sustainability labels in their communications, e.g., on their websites or other types of advertisements.

This dissertation examines the role of sustainability labels in increasing consumer preferences for sustainable travel destinations. Drawing on social exchange theory and anthropomorphism framework, we propose that sustainability labels increase consumer visit intentions, willingness to recommend a destination to someone else, and willingness to pay price premium for the sustainable offer. These effects are mediated by perception of goal congruence and connectedness with a destination. We further …

Huntingtin Aggregation At Interfaces Associated With Membranes And Organelles, Adewale Vincent Adegbuyiro

Graduate Theses, Dissertations, and Problem Reports (ETD)

Huntington’s Disease (HD) is a genetic neurodegenerative disease caused by the expansion of polyglutamine (polyQ) domain within the first exon (exon1) of the huntingtin (htt) protein. Due to this mutation within the polyQ domain, htt aggregates into various toxic species such as oligomers, fibrils, and other amorphous aggregates. While the aggregation of htt strongly correlates with polyQ length, other factors, e.g. interaction with membranes or organelles and posttranslational modifications (PTMs), modulate aggregation. The first 17 N-terminal amino acids (Nt17) that precede the polyQ in htt-exon1 enhances aggregation and facilitated binding of htt to membranous organelles, promoting morphological changes and disfunction. …

Pandemic Pedagogy: A Zoom Teaching Experiment Using Cognitive Theory Of Multimedia Learning Principles Of Multimedia Design, Kevin C. Knoster

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this dissertation was to conduct an experimental study exploring the applicability of multimedia principles of effective instructional design to Zoom teaching. In the wake of the COVID-19 pandemic, educators across higher education were forced to rapidly transition from traditional face-to-face instruction to online teaching. One of the most common ways in which colleges and universities navigated this transition in the United States was via mass adoption of the video conferencing platform Zoom. However, best practices have not yet been identified to assist instructors inexperienced with online teaching in adapting to remote instruction via Zoom. This dissertation argued …

Analysis And Classification Of Software Fault-Proneness And Vulnerabilities, Mohammad Jamil Ahmad

Graduate Theses, Dissertations, and Problem Reports (ETD)

Software bugs are expensive to fix and can lead to catastrophic consequences. Therefore, their analysis and the use of machine learning for prediction are of the utmost importance. Many prediction models have been proposed and different factors affecting the prediction performance have been extensively studied. This work addresses four topics in two areas in software engineering: software fault-proneness prediction and analysis and classification of security-related bug reports. The first topic focuses on the effect of the learning approach (i.e., the way software fault-proneness prediction models are trained and tested) on the performance of software fault-proneness prediction which lacks extensive research …

Sexual And Place-Based Identity: A Life Course Analysis Of Lgbtq+ Undergraduate Understandings Of Climate Change In Appalachia, Brandon Anthony Rothrock

Graduate Theses, Dissertations, and Problem Reports (ETD)

LGBTQ+ persons face heightened vulnerability to climate change-induced disasters due to their sexual orientation, gender identity, and gender expression. Yet, there are limited studies that examine how LGBTQ+ students, particularly in a higher-education setting, understand climate change in relation to their sexuality. With a majority of studies on LGBTQ+ persons and climate change focusing on LGBTQ+ experience during and after disaster, there is a gap in understanding LGBTQ+ perceptions of climate change in the day-to-day. Particularly in Appalachia, a region characterized by a strong place-attachment to and a collective identity with the natural environment, studies of marginalized groups’ perceptions of …

Decision-Making Involvement, Social Support For Healthy Behaviors, And Nutritional Adherence In Adolescents With Cystic Fibrosis, Jennifer Kelleher

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background: Adolescents with cystic fibrosis (awCF) exhibit suboptimal adherence to dietary and enzyme recommendations despite the fact that eating a high calorie diet with enzymes significantly improves lung functioning. Furthermore, during adolescence teens and their caregivers begin to negotiate treatment responsibility, shifting treatment tasks to the youth. As such, it is important to understand which aspects of the complex decision-making process (e.g., expressing an opinion, asking for information from parents/adults, making joint decisions with parents) relate to better dietary adherence in adolescents with CF and how parents can best support these healthy behaviors. Thus, this study aimed to identify how …

Effects Of Nonexamples On Concept Formation, Catherine Louise Williams

Graduate Theses, Dissertations, and Problem Reports (ETD)

Concept formation is affected by the examples and nonexamples provided during training, but the degree to which examples and nonexamples should differ is unknown. Two experiments compared concept formation when different kinds of nonexamples were used during training. Both experiments included a within-subject comparison of concept formation following three training conditions: a) nonexamples that were more similar to the examples, b) nonexamples that are less similar to the examples, and c) no nonexamples. Arbitrary concepts were trained in Experiment 1 and concepts akin to those that could be taught in a classroom were trained in Experiment 2. Before and after …

Identifying Self-Determined Learning Practices Within Social Media For Teacher Professional Development, Leah Mcjilton

Graduate Theses, Dissertations, and Problem Reports (ETD)

The collective increase of learner-centered teaching and substantial technology use in the classroom has given instructors potential opportunities to support students in developing lifelong learning skills. The ability to manage one’s own learning is an essential skill for lifelong learners in today’s workforce. Heutagogy, or self-determined learning, suggests that individuals have agency with respect to how, what, and when they learn. Heutagogy provides a framework for making the most of these developments, drawing on established learner-centered education theories. The key principles of heutagogy provide a foundation for designing and developing learning environments using social media. In order for teachers to …

Wild And Wonderful: How Both A Local And National Newspaper Framed West Virginia Leading Up To The 2016 Election, Emily Grace Martin

Graduate Theses, Dissertations, and Problem Reports (ETD)

During the 2016 Presidential election, journalists from all over the country flocked to West Virginia to try to understand the draw to then-candidate Donald Trump. There is a well-documented history of outsiders flooding the state and its surrounding Appalachian states to attempt to make sense of the current political situation, all while operating off of stereotypes and preconceived notions about the people of the Mountain State. This study aims to determine how stereotyping and the concept of framing or othering — when in-groups create out-groups — were used by a local West Virginia paper, as well as a national newspaper …

A Case Study Investigating Therapy Methods Used By Speech Language Pathologists Working With Children With Autism Spectrum Disorders, Julia Byers Van Volkenburg

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study was an in-depth examination of the experiences of five speech language pathologists (SLPs) working with children with Autism Spectrum Disorders (ASD) during language therapy sessions. This case study aimed to better understand the various therapy techniques being used by the SLPs through interviews and a reflective journal kept by the researcher. It also sought to examine the ways those therapy techniques may have included creative dramatics. Through thematic analysis, major and minor themes emerged from the interviews. The main theme of the study was the importance of individualizing therapy for students with ASD. Individualizing therapy was supported by …

A Short Film That Addresses Substance Use Disorders In Rural Communities And Strategies In Prevention And Treatment Of Addiction, Sarah R. Poteracki

Graduate Theses, Dissertations, and Problem Reports (ETD)

This research paper and accompanying video (link to the short film is here: https://drive.google.com/drive/folders/1etDnUmEvkOds8J0EKnq1gnFO79-GggjY) offer insight into the current state of research collaboration surrounding substance use disorders in West Virginia. This professional project explores the importance of collaboration both in a research and clinical setting and in the social realm. The film was shown at the 2nd annual meeting for the Appalachian Node of the National Institute on Drug Abuse Clinical Trials Network on February 25, 2021. I interviewed 14 researchers and experts from a diverse range of disciplines who shared insights and strategies in the prevention and treatment of …

Correctional Officer Opinions About Offenders With Mental Illness: The Relationships Among Opinions, Burnout, Emotional Intelligence, And Mental Health Training, Courtney Hull

Graduate Theses, Dissertations, and Problem Reports (ETD)

Rates of mental illness among incarcerated individuals in the United States are high and have been well documented. Correctional officers are on the front line of identifying symptoms and alerting mental health professionals to problems as they arise. Correctional officers often lack an understating of mental illness, feel ill-equipped to manage mental health crises, and experience high levels of job-related stress. The objective of this study was to better understand the relationship between correctional officers’ emotional intelligence and opinions about mental illness, and to identify if burnout moderated the relationship between the variables. Additionally, the study sought to understand the …