Digital Commons Network^™

Development And Testing Of A Biochar Combustor For A Stirling Engine, Kyle Bryant Vickery

Graduate Theses, Dissertations, and Problem Reports (ETD)

Nonrenewable resources persist as a necessity for perpetuating the current technology and standards of living maintained throughout the world. Biochar is an alternative and renewable fuel source that constitutes the potential to provide energy comparable to coal. Designing and fabricating components that can efficiently harness biochar’s energy to power machinery would demonstrate a successful renewable energy source. The scope of this research is to explain the feasible design, fabrication, and results of technology involving the burning of biochar and transference of hot combustion products for the purpose of powering a Stirling Engine. This design consists of a solid fuel burner, …

Bone Marrow Stroma-Induced Transcriptome Signatures Of Multiple Myeloma As Modulated By Junb, Jasleen Kaur Gandhi

Graduate Theses, Dissertations, and Problem Reports (ETD)

The bone marrow (BM) microenvironment acts as a breeding ground for drug resistance in multiple myeloma (MM). The interaction with bone marrow stromal cells (BMSCs) confer environment-mediated drug resistance (EMDR) to multiple myeloma. We investigated BM stroma-induced transcriptome signatures of MM cells through a sophisticated analysis of gene expression. In particular, we defined transcription program modulated by JunB, an emerging regulator of MM pathogenesis and a member of the transcription factor superfamily activator protein 1 (AP-1), in response to BM stimulation. The data and results lay down a foundation for future studies to illustrate the regulatory role of JunB in …

Pathfinding Fast Radio Bursts Localizations Using Very Long Baseline Interferometry, Pranav Rohit Sanghavi

Graduate Theses, Dissertations, and Problem Reports (ETD)

Fast radio bursts (FRBs) are millisecond-duration, bright radio transients of extragalactic origin. The Canadian Hydrogen Intensity Mapping Experiment (CHIME) telescope’s CHIME/FRB instrument and other radio telescopes across the globe have detected hundreds of FRBs. Their origins are a mystery. Precise localization within the host is critical to distinguish between progenitor models. This can be achieved through Very Long Baseline Interferometry (VLBI). Until now, VLBI localizations have only been carried out in targeted follow-up observations of some repeating sources which comprise a small fraction of the FRBs.

For this work, an interferometric array of 6m dishes was constructed at the Green …

Post-Processing Precise Point Positioning Solutions With Parameter Optimization, Maria A. Gonzalez Castaneda

Graduate Theses, Dissertations, and Problem Reports (ETD)

Precise Point Positioning (PPP) technique can offer position solutions with centimeter-level accuracy by fusing precise satellite orbits and clocks with un-differenced, dual-frequency, pseudo-range, and carrier-phase observables. PPP presents a compelling alternative to Differential Global Positioning Systems, with the benefit that it only requires a single receiver and does not require simultaneous observations from many stations, making it appealing for ongoing research on hydro-graphic survey applications. The National Oceanic and Atmospheric Administration has been working on a buoy system tracked with a Global Positioning Systems receiver and Inertial Measurement Unit sensor using the PPP technique. In the interest of obtaining accurate …

Genetic Analysis And Telemetry Study Of Migration Habits Of The Endangered Atlantic Sturgeon, Cassia Marie Busch

Graduate Theses, Dissertations, and Problem Reports (ETD)

Atlantic sturgeon are a long-lived anadromous fish that ranged from Labrador, Canada to Florida, US. Due to overharvest in the late 1800’s and 1900’s, Atlantic sturgeon populations across the coast experienced a dramatic population crash. Recovery of this species has faced challenges due to anthropogenic threats, such as vessel strikes, bycatch, and habitat degradation. In 2012, Atlantic sturgeon were added to the United States Endangered Species Act (ESA). Under the ESA, populations were listed as five distinct population segments (DPS), reflecting their geographic arrangement and genetic structure: Gulf of Maine DPS (threatened), New York Bight DPS (endangered), Chesapeake DPS (endangered), …

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 …

Short-Term International Sport For Development And Peace Programs: A Retrospective Analysis And Critique Informed By Stakeholders’ Perspectives In A Two-Year Follow-Up, Adam Hansell

Graduate Theses, Dissertations, and Problem Reports (ETD)

Sport for Development and Peace (SDP) programs are a popular approach to promoting positive development throughout the world, spanning health, education, peace, and social issues. However, scholars have identified critical shortcomings of SDP work, including the potential to reinforce neoliberalist tendencies and values imposition from the Global North to the Global South. Deporte y Cambio Social was a short-term SDP program established through partnership between American and Mexican constituent groups with aims to empower girls and women through soccer. Through six semi-structured, two-year retrospective interviews, the purpose of the present study was to explore cross-cultural understandings of power and intercultural …

Theoretical Investigation Of Sofc/Soec Degradation Mechanisms And Mitigations, Fuming Jiang

Graduate Theses, Dissertations, and Problem Reports (ETD)

America has a rapid growth in the development of renewable power generation in the twenty-first century. Hydrogen energy especially is the major topic in development of renewable power generation because it has the ability to provide for energy in transportation, combined heat and power generation and energy storage systems with little or no impact on the global ecosystem. Electrolysis and fuel cell technology for hydrogen energy storage has brought interest to the researchers worldwide.

Solid oxide electrolysis cells (SOECs) and Solid oxide fuel cells (SOFCs) are promising hydrogen energy technologies that can utilize chemical energy to produce and store electricity. …

Evaluating The Validity And Reliability Of Textile And Paper Fracture Characteristics In Forensic Comparative Analysis, Zachary Bailey Andrews

Graduate Theses, Dissertations, and Problem Reports (ETD)

In a comparative forensic analysis, an examiner can report that a physical fit exists between two torn or separated items when they realign in a manner unlikely to be replicated. Due to the common belief that it is unlikely that two unrelated fractured objects would match with distinctive characteristics, a physical fit represents the highest degree of association between two items. Nonetheless, despite the probative value that this evidence could have to a trier of fact, few studies have demonstrated such assumptions' scientific validity and reliability. Moreover, there is a lack of consensus-based standard protocols for physical fit comparisons, making …

A Workflow For Unconventional Reservoirs Optimization Using Supervised Machine Learning In Conjunction With Orthorhombic Elasticity Modeling, Aymen Ab Ali Alhemdi

Graduate Theses, Dissertations, and Problem Reports (ETD)

Due to the anisotropy and heterogeneous nature of unconventional reservoirs like shale, a comprehensive parametric study to optimize hydraulic fracture treatment for such reservoirs is a tough challenge, especially when natural fractures are present. Most of the current frac simulators do not consider the anisotropy of rock elasticity in the shales. Besides, using the fracture simulation linked with reservoir simulation for the parametric study to understand the impact of multiple different design parameters on fracture propagation and production is time expensive and low efficient. The study proposes a workflow including a new orthorhombic (OB) rock algorithm to interpret geomechanical properties …

Microwave-Assisted Carbon Nanotube Growth From Methane On Surface Catalyst Exsolving Perovskite Oxide, Angela M. Deibel

Graduate Theses, Dissertations, and Problem Reports (ETD)

The novel method of using a perovskite exsolution catalyst, strontium titanium nickel oxide (STNO), proved capable of simultaneously producing carbon nanotubes (CNTs) and CO_x-free hydrogen during methane decomposition under microwave irradiation. An optimization of common perovskite materials was conducted for microwave-responsiveness with the results reported in this study. Out of the materials screened, strontium titanium nickel oxide (STNO) was the best candidate to achieve an acceptable methane conversion rate as well as a decent responsiveness to microwave. STNO was further optimized through Ni content, reduction dwell time, and reduction temperature to produce the best methane conversion and CNT …

Healing Gardens For Assisted Living Facility At Cortland Acres, Thomas, Wv, Pooja Keshav Pawar

Graduate Theses, Dissertations, and Problem Reports (ETD)

The affection humans feel for nature is called biophilia. Connecting with nature helps in healing. The connection with nature can be established by incorporating biophilic elements like air, water, plants, and views of nature into the design. (Kellert,2018). According to Kaplan’s Attention Restoration theory, exposure to nature improves focus and the ability to concentrate. (Kaplan,1989)

Connecting with nature provides to be helpful in health care facilities for frail elderly, people with Alzheimer’s and Other Dementias, Hospice care facilities, Mental and Behavioral Health Facilities, and Assisted living facilities. (Marcus,2013)

The aim of this project is to create comfortable, safe, and accessible …

Current Practices Used To Increase The Success Rate Of The Inferior Alveolar Nerve Block In Mandibular Molars With Symptomatic Irreversible Pulpitis, Nishtha Chauhan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: Pain control during endodontic access is important to ensure patient comfort. Achieving adequate anesthesia in an acutely inflamed mandibular molar poses a treatment challenge as the reported failure rate is 30- 83%. A number of pre-medications, anesthetic techniques and adjuncts have been researched to determine their effect on the anesthetic success of the inferior alveolar nerve block (IANB). The purpose of this research was to describe the current clinical practices used by the members of the American Association of Endodontists in pain control of inflamed mandibular molars.

Methods: A cross-sectional observational study design was used. The study …

On The Classification Of Generalized Pseudo-Orthogonal Lie Groups Via Curvature, Cohomology, And Algebraic Structure, Adam C. Fletcher

Graduate Theses, Dissertations, and Problem Reports (ETD)

The study of Lie groups has yielded a rich catalogue of mathematical spaces that, in some sense, provide a theoretical and computational framework for describing the “world in which we live.” In particular, these topological groups that represent the rigid motions of a space, the behavior of subatomic particles, and the shape of the expanding universe consist of specialized matrices. In what follows, we define a new collection of matrices with a very specific transposition relation and attempt to classify this Lie group algebraically, geometrically, and topologically. We consider fields, $\Bbb{F},$ of characteristic zero and define the group of pseudo-orthogonal …

A Combinatorial 5-Htr Expression Pattern Within The Ventral Projection Neurons Of The D. Melanogaster Olfactory Circuit., Mohd Freezely Ezzani Bin Mazri

Graduate Theses, Dissertations, and Problem Reports (ETD)

Neuromodulation allows neurons within a circuit to respond to stimuli from the environment according to the correct ecological value, context, and internal state of the animal. Serotonin (5-HT) is a neuromodulator that can generate different outcomes based on its target’s serotonin receptor (5-HTR) expression by affecting secondary messenger cascades. Within the Drosophila olfactory system, ventral projections neurons (vPN) express all five insect 5-HTR that project into two olfactory processing regions, the antennal lobe (AL) and the lateral horn (LH). The significance of this 5-HTR expression is unknown. In this study, I theorized the patterns of 5-HTR expression of vPNs. I …

An Examination Of Career Orientation Courses And College Students' Career Decision Self-Efficacy, Logan R. Mayhew

Graduate Theses, Dissertations, and Problem Reports (ETD)

Career development is an ongoing concern for college administrators as the modern knowledge era generates new and fluctuating jobs. College students are more anxious than in previous decades about starting their careers and making vocational decisions. Building career decision self-efficacy in students results in greater feelings of confidence and increases demonstration of career-related behaviors. Students in three online career courses at West Virginia University were assessed for gains in career decision self-efficacy in comparison with a control group after participation in the courses and compared on the basis of gender. Results of a mixed ANOVA indicated a significant increase in …

Essays On Clean Water Act And Safe Drinking Water Act, Sharaban Tahura Anica

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation empirically examines three issues related to CWA and SDWA: 1) Financial Assistance and Environmental Compliance; 2) Financial Assistance Priorities from the Clean Water State Revolving Fund; and 3) Drinking Water Compliance during COVID-19 Pandemic.

Using the National Pollution Discharge Elimination System compliance and the Clean Water State Revolving Funds (CWSRF) data for wastewater treatment plants in nine states between 2010 and 2018, chapter 2 examines a) the effect of non-compliance on the distribution and size of awarded CWSRF loans, and b) the effects of the CWSRF provision and award size on post-funding compliance. Funded facilities are found to …

A Narrative Inquiry Into Veterans In Engineering, Miracle David Solley

Graduate Theses, Dissertations, and Problem Reports (ETD)

Much research has been conducted on student veterans, in general; however, research on student veterans in engineering majors is very sparse. There is national recognition of the importance of student veterans in science, technology, engineering, and mathematics (STEM) fields as evidenced in the passage in 2020 of a bill investigating the lack of veteran students in these fields. This study adds to the literature by answering the following two research questions: What are the experiences of veteran engineering students? How has military service impacted those experiences? Twelve students and five professors from a Doctoral University: Very High Research Activity in …

Advancing Compound Detection And Identification Using Vibrating Sharp-Edge Spray Ionization, Anthony Paul Debastiani

Graduate Theses, Dissertations, and Problem Reports (ETD)

Advancing Compound Detection and Identification Using Vibrating Sharp-Edge Spray Ionization

Anthony Paul DeBastiani

‘Omics consists of various areas, including genomics, proteomics, lipidomics, and metabolomics with a goal of detection and identification of biomolecules present within each of these classes within an organism. Current omic analytical methods include the use of mass spectrometry (MS) coupled with various separation techniques, including liquid chromatography (LC), with the use of heated nebulization gas assisted electrospray ionization (HESI). Although the rapid progress in LC-MS platform development has lead to significant enhancements in omic studies, significant limitations in the detection and identification of low abundant species …

Finite Element Method Calculation Of A Prestressed Self Consolidating Concrete Beam, Vladyslav Machulsky

Graduate Theses, Dissertations, and Problem Reports (ETD)

In this study, a prestressed concrete box beam produced for the Stalnaker Run Bridge (SRB) replacement project using self-consolidating concrete (SCC) was simulated using finite element method (FEM) numerical technique. ANSYS, a commercial FEM software, was used to build the prestressed SCC box beam model. The FEM model was developed to understand the behavior of concrete and steel under prestressing loads, long-term effects, and superimposed loads. The SOLID65 and REINF264 element types were chosen to simulate the behavior of concrete and steel materials. Experimentally measured mechanical properties of concrete from the SRB project were used in the analysis allowing for …

Enemies, Allies, And Opportunities: The Politics Of Noblewomen’S Lawsuits In Early Modern Piedmont, Catherine Ferrari

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation considers early modern law courts as political venues in which noble families not only asserted claims to wealth, property, and inheritance but also sought to enhance their reputation and influence. By studying the archives of elite families in Piedmont from the mid-sixteenth to the mid-seventeenth centuries, I argue that noblewomen used the law to gain a political voice, defending their legal claims against other family members in highly visible conflicts in which not only their property but their standing at the court of the duke of Savoy was at stake. These women exploited legal procedures and drew on …

What Is The Perceived Self-Efficacy Of Defined Job Competencies For West Virginia University Extension Faculty?, Lacey Dawn Seckman

Graduate Theses, Dissertations, and Problem Reports (ETD)

The central mission of the Extension Service is to diffuse knowledge and resources developed by teaching and research experts at land grant universities to clientele within local communities (Cummings, et al., 2015; Hall & Broyles, 2016; Seevers & Graham, 2012). Making sure faculty are prepared to carry out their roles in all aspects to serve their clientele is key to quality Extension programs. Extension faculty can come from various backgrounds, interests, and expertise, all of which are influencers of self-efficacy. Having defined competencies for employees in Extension can help express what to expect in this job day-to-day. McClelland (1973) described …

Elucidating Biogeochemical Reactions Of Iron For Ammonium Removal And Nutrient Recovery From Wastewaters: Moving Toward Sustainable Wastewater Management, Rifat Anwar

Graduate Theses, Dissertations, and Problem Reports (ETD)

Development and applications of anaerobic treatment technologies has been discussed as an effective alternative to conventional aerobic processes for removal of nitrogen from wastewaters. With abundance of iron and its high reduction potential, employing ferric reduction-based reaction pathways in engineering processes could be an effective strategy to promote energy efficiency of wastewater treatment. In particular, ferric reduction coupled to ammonium oxidation (Feammox), a novel microbial metabolic function recently found to occur under anaerobic/anoxic condition through iron dosing, can be used for nitrogen pollutant removal. Iron dosing for wastewater treatment could also promote other microbial and chemical reactions that facilitate nutrient …

The Process And Case Study Approach To Implementing A Nutrition-Specific Dissemination And Implementation Science Training In Appalachia, Ayron E. Walker

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: Nutrition professionals face implementation challenges due to their lack of knowledge to incorporate D&I science into intervention design. To improve intervention outcomes, nutrition professionals must be trained in D&I science, which are currently absent in the field.

Aims: To identify and assess nutrition educators and practitioners perceived motivations, self-efficacy, and attitudes in using D&I science to inform the educational design and strategies of a nutrition-specific D&I curriculum for nutrition educators. Then to test feasibility of the nutrition-specific curriculum in increasing knowledge, self-efficacy, and attitudes by a case study approach, pre/post intervention design.

Methods: First, scoping review methodology involved the …

Stormwater Sensitivities To The Climatic And Land Cover Drivers In A Heavily Urbanized Coastal Basin Along The Northern Gulf Of Mexico, Usa., Md Faisal Razy

Graduate Theses, Dissertations, and Problem Reports (ETD)

Stormwater runoff response in a complex coastal-urban basin varies with the changes in climatic and land cover drivers. This thesis aims to assess the runoff responses to variation in climatic and land cover variables and perform a sensitivity analysis in complex coastal-urban basins. The Buffalo San Jacinto Basin (BUSJ) of southeast Texas, USA was considered a pilot study area for this research. BUSJ is a heavily urbanized coastal basin, draining an area of 3132 km² through the City of Houston, Texas into the northern Gulf of Mexico, USA. A process-based hydrological model was developed with fine spatio-temporal resolutions for …

“I Lost Everything I Owned… Now I’M Growing That Back”: Narratives Of Redemption After Meth Immersed Lives, Danielle M. Stoneberg

Graduate Theses, Dissertations, and Problem Reports (ETD)

There is a lack of knowledge on how the process of desisting (i.e., maintaining abstinence) works for those leaving immersed drug lifestyles, leaving a need for a better understanding of the role and impact of identity in drug desistance. Through secondary analysis of interview data from a sample of 33 former methamphetamine manufacturers, this study examines the applicability of Maruna’s (2001) redemption narrative framework and identifies other aspects featured in their narratives that signaled identity change. Results found all participants discussed at least one component of the framework in their interviews. Their narrative identities changed over time to recognize that …

Charge Dynamics Of Inas Quantum Dots Under Resonant And Above-Band Excitation, Gary R. Lander Jr

Graduate Theses, Dissertations, and Problem Reports (ETD)

Research involving light-matter interactions in semiconductor nanostructures has been an interesting topic of investigation for decades. Many systems have been studied for not only probing fundamental physics of the solid state, but also for direct development of technological advancements. Research regarding self-assembled, epitaxially grown quantum dots (QDs) has proven to be prominent in both regards. The development of a reliable, robust source for the production of quantum bits to be utilized in quantum information protocols is a leading venture in the world of condensed matter and solid-state physics. Fluorescence from resonantly driven QDs is a promising candidate for the production …

Human Welfare & Emergencies: Education, Natality, And Violence, Erika Antolin Davies

Graduate Theses, Dissertations, and Problem Reports (ETD)

I identify changes in human action during emergencies such as heavy precipitation and shelter-in-place orders. In two chapters I explore the effects of precipitation on educational attainment and birth rates as residential broadband access increases. In my third chapter I identify the movement of pets in and out of the home as a trigger for domestic violence during the COVID-19 lockdown. I estimate difference-in-difference regressions with panel data, coming to three conclusions. First: educational attainment in Appalachia is stunted by precipitation, as students have difficulty getting to school in bad weather. As this historically under-educated region of the US gains …

Identification Of Sesquiterpenes In Wild Tomato Accessions With Activities Against The Potato Aphid And Their Tissue-Specific Engineering In Cultivated Tomato, Fumin Wang

Graduate Theses, Dissertations, and Problem Reports (ETD)

The potato aphid (Macrosiphum euphorbiae Thomas) poses a serious problem in the commercial production of horticultural crops including tomato, since it causes damage by stylet feeding and the transmission of viruses for which it serves as the vector. Application of conventional pesticides being the fundamental tactic in the control of the aphid is increasingly considered insufficient and problematic due to emerging pest resistances and biosafety issues, highlighting the continuing need to develop new efficient and sustainable approaches. Alternatively, glandular trichomes of plants are well-known epidermal hairy tissues producing various secondary metabolites that involve in plant-insect interactions, while the terpene …

On Generalizations Of Supereulerian Graphs, Sulin Song

Graduate Theses, Dissertations, and Problem Reports (ETD)

A graph is supereulerian if it has a spanning closed trail. Pulleyblank in 1979 showed that determining whether a graph is supereulerian, even when restricted to planar graphs, is NP-complete. Let $\kappa'(G)$ and $\delta(G)$ be the edge-connectivity and the minimum degree of a graph $G$, respectively. For integers $s \ge 0$ and $t \ge 0$, a graph $G$ is $(s,t)$-supereulerian if for any disjoint edge sets $X, Y \subseteq E(G)$ with $|X|\le s$ and $|Y|\le t$, $G$ has a spanning closed trail that contains $X$ and avoids $Y$. This dissertation is devoted to providing some results on $(s,t)$-supereulerian graphs and …