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Production, Best Management Practices, And Market Impacts Of Forest Biomass Harvest And Collection In The Mid-Atlantic Region, William E. Smith

Graduate Theses, Dissertations, and Problem Reports (ETD)

Time motion studies were conducted at five mid-Atlantic sites that spanned various operations in West Virginia, Ohio, and Pennsylvania. The harvest systems included integrated harvests where chips were produced in the forest, roundwood systems where only roundwood was produced, and a centralized chipping system. The study collected overall productivity and machine utilization data at the various harvesting operations. The cost per green ton of woody biomass ranged from $18.46 to $39.8 resulting in an average of $30.33 among the five systems. Hauling had the highest average price per green ton at $9.10, while loading had the lowest at $1.73 per …

Machine Learning Assisted Framework For Advanced Subsurface Fracture Mapping And Well Interference Quantification, Mohammad Faiq Adenan

Graduate Theses, Dissertations, and Problem Reports (ETD)

The oil and gas industry has historically spent significant amount of capital to acquire large volumes of analog and digital data often left unused due to lack of digital awareness. It has instead relied on individual expertise and numerical modelling for reservoir development, characterization, and simulation, which is extremely time consuming and expensive and inevitably invites significant human bias and error into the equation. One of the major questions that has significant impact in unconventional reservoir development (e.g., completion design, production, and well spacing optimization), CO2 sequestration in geological formations (e.g., well and reservoir integrity), and engineered geothermal systems (e.g., …

An Analysis Of Urban Land Use Land Cover (Lulc) Changes In Lilongwe City, Central Malawi (2002–2022), Zola Manyungwa

Graduate Theses, Dissertations, and Problem Reports (ETD)

Lilongwe, Malawi’s capital city, has grown nearly tenfold in the last 40 years with a 4-5% annual population growth rate, and the city’s population is projected to double over the next decade. Rural to urban migration and natural increase are the driving factors of the city’s urban expansion. Characterised by the urbanisation of poverty, Lilongwe is experiencing uncontrolled and unplanned urban expansion that has led to the growth of informal settlements. Urbanisation leads to land use land cover (LULC) changes that negatively impact the quality of life and the environment. Lilongwe faces many challenges, including high levels of poverty, inequality, …

Understanding Emerging Travel Behavior In New York City, Md Amdad Hossen

Graduate Theses, Dissertations, and Problem Reports (ETD)

Many large cities face significant challenges in providing safe, economical, equitable, reliable, and efficient mobility services. Moreover, mobility service options have been changing unprecedentedly due to the advent of emerging mobility services. Understanding the impacts of emerging mobility services (e.g., for-hire vehicles, bike sharing) on other travel modes (e.g., transit, non-motorized modes, personal car) and evolving travel behavior is critical to promote sustainable modes for urban residents and reduce auto-dependency. New York City (NYC) has been conducting annual mobility survey since 2017 to understand the emerging travel behavior and mode choice characteristics. This dataset presents a unique opportunity for conducting …

Essays On Public Policy, Justin Craig Heflin

Graduate Theses, Dissertations, and Problem Reports (ETD)

The first chapter examines the impact of Red Flag Laws on homicide rates and suicide rates. Red Flag Laws seek to implement gun control measures by allowing the removal of firearms from individuals who pose a danger to themselves or others. Using a two-way fixed effects (TWFE) difference-in-differences (DiD) estimations, I demonstrate a negative and plausibly causal relationship between a state implementing a Red Flag Law and homicide rates. While there is also a reduction in suicide rates, I am unable to make causal claims. This study is the first to empirically examine Red Flag Laws, with an eye towards …

Dietary Supplementation And Functional Foods: From Development To Clinical And Public Health Implications, Rachel Grace Newman

Graduate Theses, Dissertations, and Problem Reports (ETD)

A rigorous research process is the foundation for the development and ultimate recommendation for use of dietary supplements and functional foods. This dissertation uses three seemingly disparate studies to explore the diverse research methodologies used in dietary supplement and functional food development and use. The first study focuses on primary research on the development of microgreen lemon balm herbal tea, employing experimental methodologies to assess its nutritional and bioactive properties compared to adult lemon balm herbal tea. Results showed that adult lemon balm tea contained higher total phenolics, total flavonoids, rosmarinic acid, and antioxidant capacity than microgreen teas, with hot …

Evaluation Of Emerging Screening Technologies For The On-Site Detection And Identification Of Methamphetamine And Its Precursors In Simulated Clandestine Lab Operations, Alexis Nicole Wilcox

Graduate Theses, Dissertations, and Problem Reports (ETD)

Stimulant drugs comprise one of the top drug categories abused in the United States. Due to its accessibility, low price, and manufacturing simplicity, methamphetamine is frequently placed within the top 10 seized drugs in the country. As of March 2023, methamphetamine is the most seized controlled substance in the United States, with 34,291 kg. In 2022, the United States seized over 79,000 kg of methamphetamine. One reason for the proliferation of methamphetamine is related to the production itself, which does not require large warehouses but can be manufactured in houses using relatively accessible materials and small containers. When a clandestine …

The Influence Of Spirituality On Caregiver Burden And Quality Of Life In Older Adult Informal Caregivers, Stephanie Marie Young

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background: Caregiver burden reduces quality of life (QOL) and is associated with poorer health outcomes. Older adults may be more susceptible to caregiver burden due to advancing age and declining health. Spirituality has been shown to reduce caregiver burden and improve QOL.

Purpose: The purpose of this study was to evaluate the direct or indirect influence of spirituality on caregiver burden and caregiver QOL in older adult caregivers. The specific aims were 1) to determine the prevalence of caregiver burden in a nationally representative sample of older adult informal caregivers of other adults and 2) to investigate the relationships among …

Understanding The Effects Of The Covid-19 Pandemic On West Virginia Students In Secondary School, Hannah Mckenzye Layman

Graduate Theses, Dissertations, and Problem Reports (ETD)

Abstract 1

Background: The COVID-19 pandemic negatively impacted the mental health of young people. Mental health disparities among youth are abundant, so understanding how the pandemic may have affected specific sub-groups to develop tailored interventions to mitigate variations in health disparities is essential. Methods: School-based survey data from the Young Mountaineer Health Study (YMHS) was used to create generalized estimating equations models predicting anxiety and depression among early adolescents. The cohort sample included 2,322 students. Waves 1, 2, and 3 were collected ~6 months apart. Independent variables included COVID-19-related emotional impact (scale range: 5-25) and social support. Results: Average age …

Development And Characterization Of Monoclonal Antibodies Against Pseudomonas Aeruginosa, Jason Kang

Graduate Theses, Dissertations, and Problem Reports (ETD)

Antimicrobial resistance (AMR) has emerged as a global crisis, posing significant challenges to the treatment and management of infectious diseases. The escalating prevalence of antibiotic-resistant bacteria has made many antimicrobial therapies ineffective, necessitating the development of alternative strategies to combat microbial infections. The rise of multidrug-resistant pathogens, such as Pseudomonas aeruginosa and Serratia marcescens, further exacerbates this problem, as these pathogens exhibit high levels of resistance to multiple antibiotics and cause severe infections in vulnerable populations. In response to the need for alternative therapeutic approaches, monoclonal antibodies (mAbs) have emerged as promising candidates for combating AMR. In this work, we …

Study Of Barrier Face Coverings And Respirator Exhalation Filtration Efficiency And Exhaled Air Velocity During Wear, Weihua Yang

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study aimed to assess the effectiveness of different types of respiratory protection, including National Institute for Occupational Safety and Health (NIOSH) Approved respirators and surgical masks in healthcare settings, as well as barrier face coverings (BFCs) used by the public as source control. The assessment was based on three components: total outward leakage (TOL), particle size distribution, and exhalation airflow velocity. To achieve this, the study utilized headform testing systems to measure TOL and airflow velocity. Specifically, a hard surface headform was used for NIOSH Approved respirators and surgical masks, while two soft surface headforms of different sizes were …

Looking Inward, Looking Back: John Le Carré And The Spy Narrative After The Cold War, Rachel Lynn Hoag

Graduate Theses, Dissertations, and Problem Reports (ETD)

The genre of spy fiction confronts a paradigm-shifting event in the 1990s with the end of the Cold War. Despite critical speculation that the genre had outlived its usefulness, spy fiction writers navigate this period of transition, and the genre remains broadly popular with the reading public. This study examines how the work of Britain’s foremost espionage writer, John le Carré, navigates the changing geopolitical landscape of the late twentieth and early twenty-first century. In mapping this terrain, one sees two distinct impulses emerge: a tendency to look inward and a tendency to look back. To look inward, the novels …

Profiles Of Positive And Negative Risk-Taking Among Asian And Non-Asian American Emerging Adults, Yea Won Park

Graduate Theses, Dissertations, and Problem Reports (ETD)

Emerging adults can engage in both positive and negative risk-taking. Based on recent previous research that identified various risk-taking profiles (Duell et al., 2022), the current project extends the literature in several ways. The purpose of this study was to (1) identify profiles of risk-taking behavior among US college students, (2) examine how correlates of cognitive values and interpersonal factors relate to risk-taking groups, and (3) investigate the role of cultural values in risk-taking profiles among Asian and non-Asian American college students. The sample was 401 participants recruited from universities in the US. Latent Profile Analyses indicated that 4-profile solution …

Exploring Opportunities And Challenges Of Adopting Exoskeletons And Exosuits In Construction: Identifying Facilitators, Barriers, And Potential Solutions To Those Barriers, Dilruba Mahmud

Graduate Theses, Dissertations, and Problem Reports (ETD)

Exoskeletons and exosuits (collectively termed as EXOs) have the potential to reduce the risk of work-related musculoskeletal disorders (WMSDs) by protecting workers from exertion and muscle fatigue due to physically demanding, repetitive, and prolonged work in construction workplaces. However, the use of EXOs in construction is in its infancy, and much knowledge for driving acceptance, adoption, and application of this technology is still lacking. This paper aims to identify the potential facilitators and barriers to adopting EXOs in the construction industry, along with potential solutions to those identified barriers to fostering the adoption of EXOs in construction workplaces through a …

Exploring Prenatal Care In A Rural Appalachian State: A Project Watch Study Of Barriers And Facilitators In All Births From May 2018 To March 2022, Madelin Gardner

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: PNC is essential in protecting the health of birthing person and infant. Teenage and advanced maternal age (AMA) birthing persons are known risk factors for poor birth outcomes. However, less is known about whether these age groups are associated with inadequate PNC. Births to teenagers continue to be of concern in rural areas however, little is known about the association between inadequate PNC and poor infant outcomes in teenage populations. Previous studies have determined that greater risk of inadequate PNC has been linked to more rural areas compared to more urban areas. WV is the third most rural state …

Chemotherapy-Induced Pdl-1 Expression In Cancer-Associated Fibroblasts Promotes Chemoresistance In Nsclc, Gayathri Heenatigala Palliyage

Graduate Theses, Dissertations, and Problem Reports (ETD)

A cure for cancer is out of reach for most patients due to chemoresistance. Cancer-associated fibroblasts (CAFs), one of the most abundant types of stromal cells in the tumor microenvironment, are known to provide functional and structural support for tumor progression. These cells also play a role in cancer chemoresistance, but a detailed understanding of the process, particularly in chemoresistant lung cancer, is lacking. In this study, we investigated programmed death-ligand 1 (PDL-1) as a potential biomarker for CAF-induced chemoresistance and evaluated its role and underlying mechanisms of chemoresistance in non-small cell lung cancer (NSCLC). We demonstrated that chemotherapy-stimulated CAFs …

Morphological, Physiological, And Transcriptional Responses Of Populus Trichocarpa To Water Deficit Stress, Kristin Justine Ratliff

Graduate Theses, Dissertations, and Problem Reports (ETD)

Under the threat of climate change with continued fossil fuel use, investment in developing renewable energies is increasingly important. One category of renewable energy sources, biofuels, is well suited to industries that require a liquid fuel source. However, producing biofuel feedstocks is challenging from a sustainability perspective, as they require extensive land area and resource input to grow on marginal lands. The identification of strategies that feedstock species use to maintain productivity with limited to no resource inputs could aid in the selection of optimal genotypes or targets of breeding or engineering efforts to maximize productivity in feedstock plantations. Some …

Adverse Childhood Experiences And Intimate Partner Violence In Gender Minority Populations, Claire Mason Mccown

Graduate Theses, Dissertations, and Problem Reports (ETD)

Childhood adversity has been linked to numerous health and mental health concerns in adulthood (Felitti et al., 1998). Among the many outcomes associated with adverse childhood experiences (ACEs), victimization and perpetration of intimate partner violence (IPV) remains a public health crisis. Research has found that those identifying as gender minority individuals are disproportionately impacted by IPV (Messinger, 2017; Peitzmeier et al., 2020). Further, gender minority individuals experience equivalent, if not higher, rates of ACEs when compared to their cisgender counterparts (Baams, 2018; Juárez-Chávez et al., 2018; Schnarrs et al., 2019; Tobin & Delaney, 2019). While many factors contribute to the …

Sex Differences In Endothelial Function, Metabolism, And Sleep: Responses To Disrupted Circadian Rhythms, Olga Hecmarie Meléndez-Fernández

Graduate Theses, Dissertations, and Problem Reports (ETD)

Circadian rhythms are endogenous cycles that recur approximately every 24 h, and manifest in virtually every physiological and behavioral process among the vast majority of organisms. These rhythms, sustained by the central circadian clock, the suprachiasmatic nucleus (SCN) of the hypothalamus, allow for optimal timing of biological processes that ensure organisms’ homeostasis, and are entrained to precisely 24 h by daily exposure to light. Disruption of the molecular mechanisms that drive these rhythms have negative consequences on physiology and behavior that may impair survival. The molecular mechanisms that underlie these effects are widely studied and linked to multiple diseases and …

Internalized Heterosexism, Shame Proneness, And Disclosure In Clinical Supervision Among Sexual Minority Supervisees, Christian Joseph Carey

Graduate Theses, Dissertations, and Problem Reports (ETD)

Sexual minority supervisees face unique struggles including prejudice, discrimination, and heterosexism, which may impact their psychological well-being and development within the supervisory experience through shame proneness and reduced disclosure. This study aims to explore the challenges facing sexual minority trainees and contribute to the empirical knowledge of multicultural supervision. Thus, this study proposes two mediation models for the hypothesized relationships among internalized heterosexism, shame-related withdrawal, shame-related negative self-evaluation, and disclosure in supervision. A total of 170 supervisees identifying as sexual minorities completed an online survey. The primary analysis included a three-step linear regression and confirmatory analysis for mediation. The results …

Effects Of Combined Ethanol And Nicotine Administration On Delay Discounting In Male And Female Sprague-Dawley Rats, Rebecca Lillian Chalme

Graduate Theses, Dissertations, and Problem Reports (ETD)

Ethanol (EtOH) and nicotine (NIC) are among the most commonly used and co-used drugs in the world. Co-use occurs in people who use one or both drugs chronically, but also in people who only consume one or both drugs acutely, often in a “bingeing and chipping” pattern. Given that each drug on its own has previously been shown to affect impulsive choice in delay-discounting procedures, with some indication that drug effects could vary by sex, the purpose of the present experiments was to investigate effects of combined EtOH and NIC at a range of dose combinations on delay discounting in …

Mitigation And Preparedness In Disaster Communication: Examining The Need For Closing The Loop In The Discourse Of Renewal Theory, Abigail Renee Riggs

Graduate Theses, Dissertations, and Problem Reports (ETD)

Flooding across rural Appalachia has historically negatively impacted communities, and flood frequency is only expected to increase in the region as global temperatures rise. This indicates a need for effective disaster and crisis communication in flood-prone communities within the region. The discourse of renewal and readiness for renewal theories provide potential avenues for improving crisis and disaster communication. Readiness for renewal in particular focuses on closing the gap between the pre and post-crisis phases. However, readiness for renewal has yet to be applied to disaster communication and has not been studied qualitatively. Additionally, ethical guidelines for communication within renewal have …

Love, Life, And Controversial Topics: A Content Analysis Of The Top Liked Abortion Tiktok Videos Before And After The Overturning Of Roe V. Wade, Jill E. Sturges

Graduate Theses, Dissertations, and Problem Reports (ETD)

TikTok is a trendy social media platform that has attracted billions of monthly users. Anyone can post a short video about their interests, beauty, relationships, travel, and controversial topics if they are 13 or older. Many young adults turn to social media platforms, such as TikTok, to help them make decisions regarding their everyday lives and to discuss controversial topics, such as abortion. The concern with social media content is the misinformation and disinformation that can spread rapidly across the globe with a click of a button. Numerous studies have begun to examine social media platforms for the accuracy of …

Conservative Anabaptists Descriptions Of Delay, Comfort In Connectedness, And Ease In Cultural Tension When Seeking And Responding To Healthcare, Matthew Donald Hottle

Graduate Theses, Dissertations, and Problem Reports (ETD)

Abstract

Conservative Anabaptists description of delay in health seeking behaviors, comfort in connectedness, and ease in cultural tension when seeking and responding to healthcare

Background: Conservative Anabaptists are a large ethnic religious population that continues to grow in the United States. This includes groups of Amish, Mennonites, Hutterites, and Brethren populations residing in rural areas. These groups are known to experience adverse health related outcomes such as community acquired infections, advanced cancer diagnosis, and undiagnosed chronic conditions such as hypertension, diabetes, and heart disease. Therefore, the concept transcending health values has been developed to better understand how conservative anabaptists describe …

Effects Of Ethanol And Nicotine Co-Administration On Risky Choice In Rats, Erin E. Wylie

Graduate Theses, Dissertations, and Problem Reports (ETD)

Individuals often engage in the comorbid use of alcohol (ethanol) and nicotine, leading to further-escalated health consequences than the use of either drug in isolation. Given the poor health outcomes resulting from the combined administration of ethanol and nicotine, some of which may be due to increased risky choice, more basic research is needed to better characterize drug/dose interactions on risky choice. Probability-discounting procedures involve a series of discrete choices between a smaller, certain reinforcer (i.e., a safer choice) and a larger, increasingly uncertain reinforcer (i.e., a riskier choice). Probability-discounting procedures allow for the assessment of …

Cue Reactivity In Electronic Cigarette Users With Sign-Tracking Or Goal-Tracking Behaviors, Polina Krom

Graduate Theses, Dissertations, and Problem Reports (ETD)

Polina Krom

Cue reactivity is an important predictor of addiction course and relapse. However, cue reactivity is only observed after an addiction develops. As such, it is unclear to what degree cue reactivity represents a state stemming from the addiction process versus a trait-like propensity towards developing cue-reward associations. Work in animal models has pointed to important individual differences in trait-like inclination to attribute incentive salience to reward-predictive cues that is associated with addiction-relevant behavioral and neurobiological features. These individual differences manifest as sign-tracking (ST) and goal-tracking (GT) behaviors during Pavlovian conditioning. Little research has attempted to translate ST and …

Three Essays On Health And Environmental Economics: Applications Of Spatial Econometrics And Spatial Analysis, Mohammed Syedul Islam

Graduate Theses, Dissertations, and Problem Reports (ETD)

Spatial interaction and the locational structure between observations play key roles in the field of econometrics for both cross-sectional and panel data analysis. Compared to a non-spatial econometric model, a spatial model relaxes the assumption of independency in observations. This research applies spatial and non-spatial econometrics in three different fields of applied economics: (1) drinking water and air quality violations impacts on lung and bronchus cancer incidence in the contiguous United States (U.S.); (2) spillover effects of non-pharmaceutical interventions (NPIs) on COVID-19 cases across the contiguous U.S. counties; and (3) urbanization impacts on carbon dioxide (CO₂) emissions in …

“Ingenious Entanglements”: Sheriffs, Capitalism, And Civil Society In America, 1750-1850, Chad R. Holmes

Graduate Theses, Dissertations, and Problem Reports (ETD)

Sheriffs served as indispensable legal actors who facilitated the expansion of democracy and capitalist transformation, processes that eventually limited their ability to profit from their work and diminished their social status. This dissertation is organized around specific sheriffs and the actions they performed to illustrate how county officers influenced society beyond the execution of court orders. These men—Rhode Island’s Beriah Brown, Pennsylvania’s John Barker, and Massachusetts’s Elisha Porter, Luke Baldwin, and Charles P. Sumner—believed they understood how to balance community demands and state directives in ways that would produce personal profit and greater authority. The work of these officers and …

Glial Cell-Specific Contribution Of Pkr-Like Er Kinase (Perk) In Neuroinflammation And Behavior, Anirudhya Lahiri

Graduate Theses, Dissertations, and Problem Reports (ETD)

Neurological disorders such as multiple sclerosis (MS) are a major public health concern in the US, with no available therapeutic cure. Chronic neuroinflammation and aberrant proteostasis in the central nervous system (CNS) are the major hallmarks of neurological diseases. Endoplasmic Reticulum (ER) is a major cellular organelle involved in protein synthesis, folding and maturation of various secretory and transmembrane proteins. Pathophysiological stressors such as trauma and infection result in misfolded protein accumulation in the endoplasmic reticulum (ER) lumen, which results in ER stress. To regain proteostasis (protein homeostasis), cells activate the unfolded protein response (UPR). UPR is an evolutionarily conserved …

Evaluate A Mixer Of Hydrogen Peroxide And Peroxyacetic Acid To Mitigate Microbial Cross-Contamination Of Salmonella Typhimurium And The Surrogate Enterococcus Faecium During Triple-Washing Of Butternut Squash, Jesica M. Temple

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background: Recent foodborne illness outbreaks have been linked to fresh fruits and vegetables. For public safety, awareness of the risks of contamination from foodborne pathogens that can occur during post-harvest farming practices is essential to prevent foodborne outbreaks. Controlling the spread of foodborne pathogens on produce requires proper washing procedures, antimicrobials and doses. Given the speed and diversity of the produce being distributed, local incidents may become international emergencies. Methods: Studies were included if they assessed the efficacy of antimicrobials and various washing procedures and had to conclude the mitigation of cross-contamination of foodborne pathogens on produce grown in the …