Digital Commons Network^™

Gender Leadership Imbalance In Sport Organizations In Latin America, Monica Yamile Gonzalez-Cuevas

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of the study was to examine gender imbalance at the leadership level of sport administration at National Olympic Committees (NOC), National Paralympic Committees (NPC), and National Sport Organizations (NSF) of countries members of the Pan American Sports Organization (PASO). Specifically, this study examined how social and human capital, socio-cultural aspects of each country, and power-based discourses affect the advancement of women’s careers at the micro, meso, and macro levels of analysis.

A total of 12 participants were selected to participate in this study. Participants were all female sport administrators holding the position of president, vice-president, or secretary-general of …

The Heart Of Everything In The Middle Of Nowhere: The Role Of Rural Identity In The Formation And Deployment Of Political Attitudes In Pennsylvania, Mikaela G. Zimmerman

Graduate Theses, Dissertations, and Problem Reports (ETD)

The world of American politics continues to infiltrate households across the United States as technological advancement extends the reach of breaking news and government action. With this expanding reach, communities all over the country are digesting and contemplating their place in national politics more fervently than ever. At the crux of this discussion is the backbone of political engagement and action—identity and its resulting political attitudes. For decades, partisanship has been a point of contention amongst American citizens. Cities across the nation showcase protests, demonstrations, town hall meetings, and more illustrating citizens’ care for their democratized input in government affairs. …

Extension Of A Bayesian Method For Viral Genome Re-Sequencing To Multi-Dimensional Parameters, Sarah Fleischer

Graduate Theses, Dissertations, and Problem Reports (ETD)

Next Generation Sequencing (NGS) refers to all sequencing methods post Sanger Sequencing. Sequencing By Synthesis is the most well-known method, however it’s inaccessible price is difficult for some. Thus, a different method also exists, re-sequencing– which relies on a reference genome to check the validity of each base call. The standard for determining the validity of a base call is a one parameter quality score. But, previously a two-parameter Bayesian method was successfully used for re-sequencing the viral genome. However, a quality parameter was previously not used in the construction of the cumulative density function for the likelihood. This paper …

Medicaid In The Orthodontic Community: Provider Trends And Perceptions, Miranda L. Fabrega

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background and Objectives: Medicaid is a federal and state insurance program aimed at helping economically disadvantaged individuals and families with gaining access to health care. Lack of provider participation in the Medicaid program leaves many Medicaid-eligible individuals with the inability to obtain certain medical services, such as orthodontic care. The objective of this study was to use an electronic survey to better understand the beliefs and behaviors of orthodontists in regard to participation in the Medicaid program, and to determine if differences exist between Medicaid providers and non-Medicaid providers. Experimental Design and Methods: Survey: Requests to participate in an electronic …

Cbct Use In Orthodontic Residency Programs In Usa, Su Min Han

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background and Objectives: Cone beam computed tomography (CBCT) scans in dentistry have been up and coming forms of x-ray technology that allows cross-sectional images to form a comprehensive 3-dimensional representation of the mouth. While the typical use for CBCT imaging is reported to be for implant dentistry, there are many contexts in which it is indicated in orthodontics. There are various schools of thought regarding when CBCT is indicated for specific diagnosis of problems or general use in the collection of initial, progress and post-treatment orthodontic records. There are programs that follow the Radiology guidelines for taking CBCT scans10 and …

Critical Perspectives On Produce Prescription Programs & Us Federal Nutrition Policy, Alanna K. Higgins

Graduate Theses, Dissertations, and Problem Reports (ETD)

Produce prescription programs, interventions operating at the intersection of food access and public health, are steadily increasing in number across the United States since 2010. I leverage key informant interviews, participant observations, and event ethnographies to form a four-year institutional ethnography of the implementation of produce prescriptions within West Virginia alongside a legal-policy archaeology methodology to understand how produce prescriptions have been institutionalized and funded within the US Farm Bill. While much of produce prescription program growth is attributed to an expansion of federal funding starting in 2014, this dissertation demonstrates that these programs and the federal legislation which has …

A Multi-Method Evaluation Of Parent And Child Factors Associated With Child Abuse Potential, Lindsay R. Druskin

Graduate Theses, Dissertations, and Problem Reports (ETD)

Child abuse is a pervasive, global problem impacting millions of children (Stoltenborgh et al., 2015). Researchers have largely relied on the use of parent-report questionnaires to examine a variety of risk factors for child abuse (see Azar, 2002; Stith et al., 2009), leaving a gap in the research regarding the link between observed parent and child behaviors and child abuse potential. Utilizing a sample of families clinically referred for child behavioral problems, the proposed study pursued a multi-method approach to explore relations between parent factors (parent attachment, emotion regulation, harsh behaviors, and stress), child factors (child disruptive behaviors), and the …

A Shock To The System: Analyzing Ethnocentric Populist Support Before And After Crises, Kyu Chul Shin

Graduate Theses, Dissertations, and Problem Reports (ETD)

Using the question of what is driving the support for populists in the mid-late 2010s in Western Europe and the United States as the starting point, this dissertation attempts to answer a number of different questions related to populists: Were the reasons behind support for populists in countries that saw an increase in support for populisms similar to those that saw a decrease in support? Are the reasons for supporting right-wing populists different from more general ethnocentric populists? Are the reasons that Americans supported Donald Trump similar or different from the reasons behind support for Western European populists? Following migration-related …

Amelioration Of Mitochondrial Bioenergetic Dysfunction In Diabetes Mellitus: Delving Into Specialized And Non-Specific Therapeutics For The Ailing Heart, Andrya Jean Durr

Graduate Theses, Dissertations, and Problem Reports (ETD)

Morbidity and mortality of the diabetic population is influenced by many confounding factors, but cardiovascular disease (CVD), remains the leading cause of death. Mitochondrial dysfunction is central in the development of cardiac contractile dysfunction, with decreased mitochondrial bioenergetic function, increased dependence on free fatty acid utilization, and a decrease in glucose utilization having been shown to contribute to contractile dysfunction. Strategies targeting the amelioration of mitochondrial bioenergetic function are attractive for limiting diabetes-induced heart failure, and preserving health-span. The goals of this dissertation were to assess two mitochondrial-centric approaches for the amelioration of mitochondrial and cardiac contractile dysfunction in diabetes …

Design And Control Of Intensified Membrane Reactor Systems Through Module-Based Design Approach, Brent Bishop

Graduate Theses, Dissertations, and Problem Reports (ETD)

As interest in the modularization and intensification of chemical processes continues to grow, more research must be directed towards the modeling and analysis of intensified process units. Intensified process units such as membrane reactors pose unique challenges pertaining to design and operation that have not been fully addressed in the reported literature. This work aims to address the design and control challenges caused by the integration of phenomena and the loss of degrees of freedom (DOF) that occur in the intensification of modular membrane reactor units.

First, a novel first-principles approach for modeling membrane reactors is developed using the AVEVA …

Ethane Dehydrogenation For Light Olefins Production Over Stable Catalyst, Xiaoyan Wang

Graduate Theses, Dissertations, and Problem Reports (ETD)

Accompanied by the development of modern industry, the demand for light olefins (e.g., ethylene, propylene, butene, butadiene) increases year by year. Light olefins are important intermediates in producing polymers (Polyethylene, Polypropylene, etc.) and rubber (Styrene Butadiene Rubber, Polybutadiene rubber, etc.). The primary process for the production of light olefins is steam cracking of petroleum liquids (naphtha and distillate fuel oil). It is an energy-intensive process, requiring high temperature (750-850℃) and pressure (1.0-4.5 MPa). Meanwhile, due to undesired side reactions, this process has lowered the efficiency of light olefins production and suffers from severe coking issues. Furthermore, as petroleum liquids become …

A Study On Supereulerian Digraphs And Spanning Trails In Digraphs, Omaema A. Lasfar

Graduate Theses, Dissertations, and Problem Reports (ETD)

A strong digraph D is eulerian if for any v ∈ V (D), d+D (v) = d−D (v). A digraph D is supereulerian if D contains a spanning eulerian subdigraph, or equivalently, a spanning closed directed trail. A digraph D is trailable if D has a spanning directed trail. This dissertation focuses on a study of trailable digraphs and supereulerian digraphs from the following aspects.

1. Strong Trail-Connected, Supereulerian and Trailable Digraphs. For a digraph D, D is trailable digraph if D has a spanning trail. A digraph D is strongly trail- connected if for any two vertices u and …

The Purpose And Process Of Commissioning New Music For Low Brass Instruments: A Guide, Michael Kennard Waddell

Graduate Theses, Dissertations, and Problem Reports (ETD)

The euphonium, trombone, and tuba do not have the breath of solo and chamber music repertoire that other instruments such as the piano or violin do. The majority of works being written for these instruments today is being written via direct commissions and commission consortiums. This research analyzes the importance of expanding the repertoire of these instruments, along with detailed guidance on starting a consortium project and seeing it through to completion. The author, and interviewees Frank Gulino, Adam Frey, and George Alberti, detail their experiences working on consortium projects, and their views on the ethical importance of advancing the …

Zonulin As A Mediator Of Psychological Stress And Periodontal Disease, Casey D. Wright

Graduate Theses, Dissertations, and Problem Reports (ETD)

The prevalence of chronic inflammatory diseases is on the rise. Some have posited the permeability of tight junctions in gastrointestinal epithelium tissues as a potential mechanism for precipitating inflammatory processes throughout the body. Zonulin is the only known modulator of tight junction permeability and has been implicated in numerous chronic inflammatory processes (e.g., proinflammatory cytokine production) and diseases, more generally. The role of zonulin in oral inflammation, however, has yet to be explored. Periodontal disease is the most common oral inflammatory condition and primary perpetrator of tooth loss. Periodontal disease also is associated with a number of other health problems …

Ion Velocity Distribution Functions In Cutting-Edge Plasmas, Mitchell Cameron Paul

Graduate Theses, Dissertations, and Problem Reports (ETD)

Cutting-edge plasma experiments continue to push the frontiers of plasma science. Two such groups of experiments, helicon sources and laboratory magnetic reconnection, are the focus of this thesis. The relatively high plasma density achieved for modest input powers makes helicon source plasmas ideal testbeds for fusion-relevant phenomena without the complexities associated with fusion devices. Examples include plasma-material interaction (PMI) studies, divertor region studies, and boundary physics studies. As advancements in helicon source design and technology make operation at higher power for longer times possible, understanding of the plasma dynamics, particularly ion dynamics, is vital.

Laboratory experiments are essential to advancing …

Modeling, Fabrication, And Characterization Of Rf-Based Passive Wireless Sensors Composed Of Refractory Semiconducting Ceramics For High Temperature Applications, Kavin Sivaneri Varadharajan Idhaiam

Graduate Theses, Dissertations, and Problem Reports (ETD)

Real-time health monitoring of high temperature systems (>500^oC) in harsh environments is necessary to prevent catastrophic events caused by structural failures, varying pressure, and chemical reactions. Conventional solid-state temperature sensors such as resistance temperature detectors (RTDs) and thermocouples are restricted by their operating environments, sensor dimensions and often require external power sources for their operation. The current work presents the research and development of RF-based passive wireless sensing technology targeting high temperatures and harsh environmental conditions. Passive wireless devices are generally classified as near-field and far-field devices based on the interrogation distance. Near-field sensors are placed at …

Carbon Monoxide Sensing Of Nickel Oxide At 1000 ℃ To 1200 ℃ For In Situ Combustion Control: Behavior, Mechanism, And Application, Yi Wang

Graduate Theses, Dissertations, and Problem Reports (ETD)

An advanced smart sensor network is essential to a combustion system, which is in favor of in situ, locally placed, and low-cost gas sensors. However, most chemical/electrochemical sensors fail to work in a combustion boiler, due to the demanding working temperatures (> 1000 ℃). This work for the first time reports a well-functioning mixed-potential type CO sensor at 1000 ℃ - 1200 ℃ using nickel oxide (NiO) as the sensing material. The influence of feed gas flow rate, electrode thickness, and porosity on sensor behavior is investigated, delivering notable and fast responses to 1000 ppm in 3% O₂: …

Appalachian Adolescents In An Out-Of-School-Time Program: Examining The Role Of Social Support From Family And Friends For Coping Skills And Intellectual Risk-Taking Outcomes, Summer Kuhn

Graduate Theses, Dissertations, and Problem Reports (ETD)

Research on young adults has emphasized the importance of social support for generating positive physical, mental, and academic outcomes. This study aims to understand the impact of social support from family and friends on coping skills and intellectual risk-taking among high school seniors participating in an Out-of-School-Time (OST) program in Appalachia. Data from the program’s annual evaluation (2014-2018) was analyzed to measure associations between perceived social support from family and friends and students’ coping skills and intellectual risk-taking. Moreover, potential differences in these associations across genders were considered. Analyses found a significant association between family-based social support and coping skills, …

Adverse Childhood Experiences And Alcohol Use Trajectories In College Students, Rebekah Lynn Damitz

Graduate Theses, Dissertations, and Problem Reports (ETD)

Heavy alcohol use during college can result in numerous negative outcomes (e.g., accidents, worse academics, risky sexual behaviors, etc.). Understanding the risk-factors associated with elevated alcohol use in college are needed so prevention and/or interventions can be implemented to inhibit such dangerous behavior. Adverse childhood experiences have been identified as one key factor in the initiation and escalation of alcohol use, but there is limited research on samples that are in emerging adulthood. Specifically, the transition to college is a time when many students escalate drinking and can form the basis for longer term drinking patterns. It is not yet …

Sleep And Cardiovascular Reactivity To An Acute Virtual Stressor, Alaina Grace Tiani

Graduate Theses, Dissertations, and Problem Reports (ETD)

Inappropriate response and magnitude of cardiovascular reactivity (CVR) to stress is a proposed mechanism through which environmental stressors are linked with poor cardiovascular health outcomes (Chida & Steptoe, 2010; Krantz & Manuck, 1984). Studies of reactivity to various laboratory tasks commonly control for factors known to influence CVR such as smoking, medication use, caffeine intake, and BMI; however, few have considered the influence of sleep on CVR. In order to determine whether sleep characteristics need to be assessed and considered in studies of CVR, this study aimed to examine the association between indices of sleep quality and the magnitude and …

Relation Of Child Feeding Behaviors & Caregiver Qualities To Adherence To Nutritional Therapy In Type 1 Diabetes Management, Corrine N. Ahrabi-Nejad

Graduate Theses, Dissertations, and Problem Reports (ETD)

Type 1 diabetes (T1D) is a chronic illness, typically diagnosed within childhood, that affects the ability of the pancreas to produce insulin. Significant daily self-management behaviors are required to maintain metabolic control for patients with T1D. Nutritional therapy, including adequate intake of macronutrients, is one self-management behavior necessary to optimize health. Adherence to such nutritional guidelines is associated with improved glycemic control, decreased instances of acute health complications (e.g., hyperglycemia, hypoglycemia), and can also prevent insulin resistance. Despite the critical importance of nutritional therapy, adherence to these guidelines remains low within pediatric populations. Therefore, it is important and necessary to …

Air-Assisted Communications Using Line-Of-Sight Links, Shaikha A. Alkandari

Graduate Theses, Dissertations, and Problem Reports (ETD)

Recently, there has been a rapid increase in the use of air-assisted communications involv-
ing the use of airborne platforms such as unmanned aerial vehicles (UAVs). In air-assisted
networks, the UAVs can act like base stations in a traditional cellular network as long as an
appropriate backhaul is available. Alternatively, the UAVs could serve as relays, for instance,
connecting two ground-based users who are within range of the UAV. UAVs have the benefit
of being deployed and reconfigured rapidly and on demand.
Meanwhile, there has been a trend towards the use of higher and higher frequencies,
including those in millimeter-wave …

Low- And High-Wattage Vaping During Pregnancy Influence Aortic Structure And Function In Rat Offspring, James Ian Frazier

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: Electronic cigarettes (e-cigs) are being marketed as a healthier alternative to traditional cigarettes, yet the health consequences of e-cig usage (also called vaping) are still being investigated. E-cigs are easily customized for user preferences. For example, the choice of flavors, nicotine concentration, and/or the temperature (i.e., wattage) used to heat the e-liquid can be selected in many devices. Emerging evidence suggests that vaping during pregnancy impairs cerebral vascular function in rodent offspring. In this study, we sought to investigate the potential effects of changes to e-cig device wattage (i.e., 5W vs. 30W) with maternal vaping during pregnancy on vascular …

Development Of Oxide Dispersion Strengthening (Ods) Alloys Powder For Additive Manufacturing, Changyu Ma

Graduate Theses, Dissertations, and Problem Reports (ETD)

Additive manufacturing (AM) fabricated oxide dispersion strengthened (ODS) alloys are given high expectations for critical structural components such as the first stage turbine blade for their excellent creep strength and oxidation resistance compared to superalloys. However, the powder feedstock processing is still an open question since current state-of-the-art processes are not capable of achieving ultrafine strengthening elements such as Y₂O₃ in powder which leads to agglomeration issues in as-consolidated alloys. In this research, the oxidation behavior and stability of ultrafine oxide in AM-printed alloys using mechanically alloyed powders were evaluated at 1100 ^oC. In addition, a …

Combinatorial Approaches For Effective Design, Synthesis, And Optimization Of Enzyme-Based Conjugates, Jordan Scott Chapman

Graduate Theses, Dissertations, and Problem Reports (ETD)

The specificity and efficiency with which enzymes catalyze selective chemical reactions far exceeds the performance of traditional heterogeneous catalysts that are predominant in industrial applications such as conversion of commodity chemicals to value-added products, fuel cells, and petroleum refinement. Moreover, biocatalysts exhibit exceptionally high product turnover at ambient conditions with little health and environmental burden. These advantageous qualities have led to the prolific use of enzyme catalysis in pharmaceutical, detergents, and food preservation industries wherein their use has greatly reduced waste generation, Unfortunately, the full slate of benefits that enzymes can impart to a broader range of chemical processes is …

Analysis Of Emissions Profiles Of Hydraulic Fracturing Engine Technologies, Nicholas Joseph Wells

Graduate Theses, Dissertations, and Problem Reports (ETD)

In the past twenty years natural gas production in the United States has significantly increased. This is largely due to technological advancements in unconventional methods of horizontal drilling and hydraulic fracturing. With these new and improved technologies, the United States has been able to increase its natural gas dry production per year by 14.5 trillion cubic feet per year from 2001-2021, a 74.1% increase. Horizontal drilling allows the wellbore to have more contact with the source rock, thus allowing more hydrocarbons to be extracted. Hydraulic fracturing allows oil and gas companies to have access to low permeable source rock, previously …

Playing-Related Medical Injuries And Health Conditions In Collegiate Saxophonists: A Survey Of Saxophonists In North American Universities, Michael Anne Tolan

Graduate Theses, Dissertations, and Problem Reports (ETD)

When compared to other areas of musical performance, medical research on the performing arts is limited when it comes to studies on woodwind players, particularly saxophonists. The gap in research may be attributed to the circumstances surrounding selection processes and identifying subjects for study. For example, saxophonists are not salaried professionals in orchestras, which are commonly pooled for medical research. Establishing contact with saxophonists to conduct studies can prove difficult due to the wide range of genres that utilize the saxophone. Some issues may also be attributed to research methodology. To find the onset of injuries, researchers in previous studies …

Assessment Of Quechers Extraction Protocol For The Lc-Ms/Ms Detection Of Emerging Fentanyl Analogs In Biological Specimens For Clinical And Forensic Purposes, Kylea M. Morris

Graduate Theses, Dissertations, and Problem Reports (ETD)

Drug abuse within the United States is a dynamic and pervasive issue that affects the quality and life expectancy of our society. One of the major drug classes that are constantly utilized is opioids. Opioids are prescribed for pain management in patients suffering from cancer and other medical illnesses. Long-term use of opioids could lead to tolerance in humans, which poses a risk of reaching fatal overdose levels. Unfortunately, opioids are abused recreationally, and in some instances, individuals are unaware of the presence of dangerous synthetic drugs like fentanyl, hidden in materials such as heroin, cocaine, oxycodone, and methamphetamine. Recent …

Investigating The Marketing Language Among Online Retailers Of Violin Strings To Determine The Implied Aesthetic, Kira Kay Browning

Graduate Theses, Dissertations, and Problem Reports (ETD)

The aim of this research is to determine if language in the advertising of violin strings is acting as an exclusionary tool in favor of a Western art music “sound” produced by “classical” violinists. It posits that the marketing of strings to violinists is a topic laden with unacknowledged biases and values of musicians within Western art music. The aesthetic values attached to playing Western art music for the violin in the United States are passed on through pedagogic practice and acculturation of language. Product descriptions for strings in the United States employ language which adheres to these cultural values …

Evaluation Of A Comprehensive Diabetes Mellitus Protocol At A Rural, Federally Qualified Health Center In Southern West Virginia, Hannah D. Davis

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background: Diabetes mellitus is a chronic disease that affects nearly 34 million Americans. In rural Appalachia, the population is affected disproportionately at a rate of 14% compared to the national average of 10%. Diabetes is a lifelong, chronic condition managed best by a multidisciplinary team-based approach to achieve optimal disease control. Best practices in the care of diabetes support the use of evidenced based care protocols and leveraging technology to decrease the burden of disease. Type 2 diabetes mellitus (T2DM) is the most common type, making it the focal population for evaluation.

Purpose: The purpose of this project was to …