Digital Commons Network^™

Adapting To The Digital Age: Information Management Strategies For Improving Customer Perceptions Of Digital Banking In Ghana, Crystal Frema Davis

Electronic Theses and Dissertations

Mobile money services are crucial in the financial landscape of Ghana’s economy. Despite Ghana's successful Mobile Money Interoperability (MMI) project, significant disparities exist in digital banking service utilization. Using Design Science Research, this study examines customer hesitancy in digital banking adoption. The TIDE framework was developed by analyzing the information management practices and artifacts of MTN Mobile Money, Banks and reviewing the literature. It comprises three key pillars: Security Management, Customer Education, and Experience Enhancement. This framework aims to instill digital trust, improve service adoption and utilization, and promote financial inclusion and digital literacy. Expert reviews acknowledged its potential to …

The Reliability And Validity Of Accelerometry And Gnss, Christine Coniglio

Electronic Theses and Dissertations

This dissertation seeks to evaluate the reliability, validity, and utility of accelerometers and GNSS in sport-like scenarios, assess accelerometry-derived metrics and GNSS for distance prediction, and explore how accelerometer placement, specifically chest and back, affect the detection of various locomotor events. In Study I, the purpose was to investigate the accelerometer reliability and predictive capabilities of accelerometers and GNSS to predict a known distance. Thirty physically active female participants (mean height = 163.6 ± 6.8 cm, mean weight = 57.8 ± 8.7 kg) completed jogging trials over two courses (5m and 20m). Each participant wore two tri-axial accelerometers (100Hz) and …

Mathematics Outcomes For Career And Technical Students Enrolled At A Community College In East Tennessee, Malissa Trent

Electronic Theses and Dissertations

The primary purpose of this study was to compare the success of college-ready and academically underprepared community college students in a college-level math course designed for career and technical programs. A non-experimental two-group comparative design with existing data examined differences in academic metrics based on participation in a corequisite learning support mathematics course. The study used a sample size of 1070 students from a community college in East Tennessee who were enrolled in a college-level Trigonometric Applications course between the fall of 2015 and the spring of 2024. Due to a lack of prior academic preparation, 500 of these students …

Assessing The Relationship Between The Incidence Of Campylobacteriosis And Ecological Risk Factors In Tennessee, Emmanuel Angmorteh Mensah

Electronic Theses and Dissertations

Background: Campylobacteriosis although is the leading causes of bacterial diarrheal illnesses, have not gained prominent awareness and there are gaps in the understanding of transmission routes for sporadic, non-outbreak cases and their risk factors at the communal level to humans. This study, therefore, aimed to identify the campylobacteriosis risk factors and risk perception from the existing literature in the United States, determine the incidence and ecological risk factors for campylobacteriosis zip code level in Tennessee, and to perform spatiotemporal analysis of campylobacteriosis incidence cases in Tennessee.

Method: To achieve the first aim, a scoping review was conducted to synthesize …

Learning Behaviors In Physics-Informed Deep Learning, Alex Glover

Electronic Theses and Dissertations

Physics-informed deep learning is a methodology in artificial intelligence aimed at combating the large training data requirement and the barrier of domain awareness that deep learning architectures commonly face in applications. Stochastic modeling integrated into the predictive models provides that domain knowledge. Variations of the Intelligent Driving Model impact the learning behaviors of the joint-training architecture. This thesis examines the effect of substituting the standard linear Intelligent Driving Model with a modified nonlinear version, as applied to real human driving behavior on the I-80 interstate. The experimentation also critically evaluates the complications that impede the viability of this architecture in …

Kinetic Analysis Of Hydrolysis And Hydrothermal Conversion Of Methyl Cellulose To Dodecane, Joseph Olembo Were

Electronic Theses and Dissertations

Environmental pollution due to emission of greenhouse gases and increasing global energy demand are some of the concerns associated Analysis with the use of fossil fuels. These concerns have triggered the exploration of sustainable and efficient methods for renewable energy production. One such method is the conversion of cellulosic biomass to hydrocarbon fuels using hydrogen bronze metals. Cellulose is the most abundant biomass globally, and thus its utilization can lead to more sustainable energy production. Previous studies have reported the conversion of cellulose to hydrocarbons at high temperatures and hydrogen pressure. This work focuses on the conversion of methyl cellulose …

A Kinetic Analysis On Hydrolysis And Hydrothermal Conversion Of Cellulose To Dodecane, Joel Nyangoka Onyancha

Electronic Theses and Dissertations

Cellulose, the most abundant biomass on Earth, offers a promising pathway for alternative energy through conversion into alkane hydrocarbons. Traditional methods rely on high temperatures and high-pressure hydrogen, often derived from petroleum. In this study, we investigated the conversion of Microcrystalline Cellulose using hydrogen metal oxides (bronzes) under milder conditions. Following ASTM E3417-24 hydrolysis protocols, we employed hydrogen bronzes with toluene for product extraction. This approach enabled conversion at lower temperatures without pressurized hydrogen. Products were analyzed using Gas Chromatography Mass Spectrometer for identification and Gas Chromatography Flame Ionization Detector for quantification. Our findings revealed the formation of a possible …

The Food Truck: A Multi-Product Newsvendor With Trans-Shipment Cost, Samuel Ajibola

Electronic Theses and Dissertations

The Newsvendor Problem is a key model in supply chain management that focuses on determining the optimal order quantity to minimize costs under uncertain demand. This thesis introduces the Food Truck Problem, an extension of the Newsvendor model that incorporates nonlinear transshipment costs for inventory transportation. In this context, a Food Truck must determine the optimal stock levels for multiple products while minimizing costs related to stock shortages, excess inventory, and transportation. Unlike traditional Newsvendor models, our approach explicitly considers a quadratic transshipment cost, which necessitates the use of Lagrangian duality and Karush-Kuhn-Tucker (KKT) conditions for analysis. Moreover, we apply …

Digital Revival: The Role Of Social And Streaming Media In The Resurgence Of Appalachian Country Music, Jacob Cody Powers

Electronic Theses and Dissertations

This study investigates the role of digital media, specifically social media, and streaming platforms, in the resurgence of Appalachian country music. In recent years, niche music genres have found new life through online platforms, which offer unique avenues for discovery, engagement, and community building. Using a mixed methods approach, this research combines quantitative survey data and qualitative thematic analysis to explore how audiences discover Appalachian country music on platforms such as TikTok, YouTube, and Spotify. A cross-sectional survey was distributed to college students and social media users, collecting responses on participants' digital engagement habits, platform preferences, and motivations for exploring …

Investigating The Role Of The Hypocretin/Orexin System In A Novel Model Of Polysubstance Dependence, Tyler Zarin

Electronic Theses and Dissertations

Substance use disorders (SUD) in the United States are steadily increasing. Potent and dangerous substances such as methamphetamine (MA) and fentanyl (FEN) are often co-used as a polysubstance (POLY), either intentionally or unknowingly as FEN is a common adulterant. SUD is characterized by physiological and psychological dependence involving the negative reinforcement of anhedonia and withdrawal which drive hypermotivated drug-taking behaviors. Current theory suggests that recruitment of hypocretin/orexin (HCRT) neuropeptide in reward and stress associated brain regions contributes to drug dependence. Despite strong evidence for HCRT’s role in mono-drug dependence, a relevant model for POLY dependence has yet to be developed, …

Assessing The Utilization Of Building Information Modelling (Bim) In The Preservation Of Cultural Heritage: A Case Study Of Ashe-Street Courthouse, Boluwatife J. Oluwamakinde

Electronic Theses and Dissertations

This study examines how Building Information Modeling (BIM) was used in the Ashe Street Courthouse restoration, with an emphasis on its role in heritage preservation. It follows a context-oriented instrumental case study methodology and a systematic four-step approach: reviewing literature and historical records, conducting semi-structured interviews with renovation architects, and analyzing project documentation. The study compares BIM with traditional methods to assess documentation quality, stakeholder collaboration, and project efficiency. Findings show that BIM increases documentation accuracy through real-time modifications while preserving historical data. It also enhances collaboration by providing a centralized platform for architects, engineers, and preservation specialists, reducing errors …

Interdisciplinary Collaboration: The Impact Of Curriculum Support Through Museum/Education Partnerships In Rural Communities, Erin Gentry

Electronic Theses and Dissertations

Museum education is a dynamic field, and often an underutilized or nonexistent resource in the educational sphere of rural communities. Within the current system of rural K-12 schools, a local museum can serve as both educational enrichment and entertainment/reward. The author’s research explores how museums in rural communities can actively collaborate with schools through a fusion of art and science using an interdisciplinary curriculum model to provide educational support and enrichment to both students and teachers. This research focused on high school students enrolled in a Title 1 charter school located within a rural district in east Texas. The author …

College Readiness In Mathematics Related To Student Academic And Belonging Mindsets, Tabitha Sherrell

Electronic Theses and Dissertations

My quantitative study investigated the differences and correlations between students’ academic (growth vs. fixed) mindsets and belonging mindsets when enrolled in a college-level mathematics course or enrolled in both the college-level mathematics and learning support mathematics courses. The study was conducted at a Tennessee community college in the Fall 2021 semester. Sixty-two students completed the paper survey, which consisted of 17 items that measured academic (growth vs. fixed) and belonging mindsets and included demographic items (age and gender) and ACT mathematics scores. I conducted independent t-tests to find any significant differences between academic (growth vs. fixed) mindset scores and belonging …

Car Price Prediction Using Machine Learning: Analyzing The Dvm-Car Dataset, Yaman Abu Ghareebaih

Electronic Theses and Dissertations

The objective of this study is to predict car prices using machine learning models and the DVM-CAR dataset, which includes over 1.4 million images and car specifi- cations from 899 car models. Key factors such as mileage, engine power, and year of registration were analyzed for their correlation with car prices. Extensive data cleaning was performed, including filling missing values, identifying outliers, and normalizing numerical variables. Discrete variables like car make and body type were encoded using one-hot encoding. Linear relationships were analyzed with Multiple Logistic Regression, and Random Forest models were used for nonlinear patterns. Model performance was evaluated …

Development Of A Portable Electroencephalogram With Display, Seth D. Davis

Electronic Theses and Dissertations

In this experiment, the goal was to design, build, and test an Electroencephalogram (EEG) circuit that would then be paired with a touchscreen display as a portable unit for use in Schizophrenic research at East Tennessee State University at the Quillen College of Medicine. The requirements for this prototype denoted that the device had to be able to obtain a signal from two electrodes placed on the head of an individual with a third attached to the ankle as a ground, amplify and filter the signal, and display the results on a touchscreen display for recording and analyzing. The circuit …

Ai For Sustainability In Appalachian Businesses: Challenges And Successes, Mariatu Mahmoud

Electronic Theses and Dissertations

This qualitative study examines the perception of Artificial Intelligence (AI) and how this technology can advance sustainable development in small businesses in Central Appalachia. Participants described how they leveraged AI-enabled technologies to address economic challenges as well as how they overcame the technological barriers often associated with emerging technologies. Findings reveal that AI can significantly improve efficiency, streamline workflows, and enhance visibility for Appalachian entrepreneurs. However, the research also highlights challenges, including trust issues, limited resources, and resistance to change, which hinder adoption. Results from this study produce strategies for adopting AI that enable small businesses to integrate innovation while …

University Administrators’ Perceptions On Social Inequalities And Retention Of First-Year African American Students At Historically Black Colleges And Universities (Hbcus), Toni V. Smith

Electronic Theses and Dissertations

Low retention rates of African American students in U.S. higher education institutions remain an issue, with researchers exploring possible contributing factors, including social inequalities. This qualitative descriptive study explored the perspectives of administrators from Historically Black Colleges and Universities (HBCUs) on the unique barriers African American students face in the HBCU context, including financial hardship, academic unpreparedness, and limited opportunities for social integration. Data were collected through detailed, voice-recorded, semistructured interviews conducted via Zoom with administrators, including provosts, presidents, and directors from 12 current and former HBCUs, to explore how policies initially perceived as unfavorable could positively impact institutional leadership …

Barriers To Female Advancement In Health Sciences Education: A Qualitative Study Examining The Effect Of Culture And Values On Leader Selection, Christie C. Moreno

Electronic Theses and Dissertations

Leadership in the 21st century has been broadly defined as a process of influence toward achieving shared goals. However, despite research affirming the leadership capabilities of both men and women, persistent gender disparities in executive leadership remain across sectors, particularly within academic health professions education. This qualitative phenomenological study explored the lived experiences of women in executive leadership roles at graduate health sciences centers in Texas. The purpose was to understand the barriers to advancement, the role of organizational culture and values, and the environmental and individual factors influencing leadership trajectories. Prior studies have identified that women often ascend to …

A Narrative Inquiry Regarding The Influence Of University Leadership On The Success Of First-Generation College Students With Financial Need, Jordan Westley Jones Sr.

Electronic Theses and Dissertations

First-generation college students experience unique challenges related to their journey in higher education. These challenges include a lack of knowledge of college resources, adapting to college expectations, and integration into college social systems. Additionally, when factoring in the financial challenges that present at a higher rate with first-generation college students, this population is faced with significant barriers that limit their ability to be successful in college without the support of leadership to help them be successful. Leadership influences the success of students in college through the development of strategic initiatives, programs, and services that address the needs of their students. …

Impact Of A Transplant Nurse Navigator In The Dialysis Setting, Judith D. Pozzerle

Electronic Theses and Dissertations

Patients with kidney disease have better patient outcomes and quality of life with a kidney transplant. However, the transplant process is complicated with inherent inequalities and biases and patients frequently fail to initiate a referral for transplant evaluation. The Centers for Medicare and Medicaid have now placed financial incentives to improve the number of patients transplanted. The only way to increase the number of patients transplanted is to start with a referral for evaluation. Studies have been done highlighting the barriers, but there is a lack of studies implementing strategies to improve these numbers. Utilizing Kotter’s change theory and describing …

Preeclampsia: Implementation Of The American College Of Obstetricians And Gynecologists Standardized Protocol, Sheila Ann Harwell

Electronic Theses and Dissertations

Preeclampsia is a significant medical condition that affects the perinatal population, posing risks to both the mother and fetus. Complications associated with preeclampsia include stroke, seizure, placental abruption (premature separation of the placenta from the uterus), fetal growth restriction (impaired growth due to reduced blood flow through the placenta), premature birth, and low-birth-weight infants with associated developmental issues. Because there is no cure for preeclampsia, the current management involves the timely administration of intravenous antihypertensives to reduce the risk of stroke and seizure. The gap in practice identified was the obstetrical department’s lacking a standardized protocol, compared to adopting the …

Some Things Askew: Cautionary Quips And Satirical Scenarios, David C. Clark

Electronic Theses and Dissertations

Some Things Askew: Cautionary Quips and Satirical Scenarios is a collection of sculptures and drawings that depict objects from a dreamlike, dystopian world. Each piece contributes to a larger narrative that illustrates the presumed inhabitants of this skewed landscape, chronicling their journeys, interactions, and existence within it. Faux paint treatments conceal the diverse materials employed in the creation of these works. This self-reflective story conveys themes of perseverance and hope as the characters strive to survive—and even flourish—amidst the dark and unusual circumstances they face. A hint of sarcastic humor and whimsy permeates the collection, offering comic relief and emphasizing …

Women Overcoming Barriers In Stem: How Mentors, Allies, And Sponsors Assist Career Trajectories In Higher Education, Leila Marie Romeo

Electronic Theses and Dissertations

This study focused on the personal narratives of women in STEM in both public and private higher education institutions within various roles. Specifically, the researcher aimed to determine the following: (a) if mentors/allies influence the career trajectories of women in STEM in higher education institutions and (b) if mentors/allies aid in the support of women in STEM in higher education institutions. The researcher used semistructured interviews with a narrative analysis to determine areas of struggle for the sample within their careers and how mentors, allies, and sponsors were present throughout their careers to help the women overcome these challenges. Data …

Experiences And Perceptions Of Latina Leaders In Higher Education: A Regional Study, Marlee R. Stephenson

Electronic Theses and Dissertations

This dissertation focused on and discussed the experiences and perceptions of Latina women in senior level leadership positions within higher education. The problem of this study was the continued underrepresentation of Latina women in senior roles, and this was seen within the overall low percentage of women in senior roles like president, the absence of women mentorship at senior levels, and the continued barriers women face in senior-level positions. The purpose of this study was to understand how the mentoring relationships, backgrounds, and leadership experiences impact or influence the careers of Latina women leaders in higher education within the Southwest …

Empowering Educators, Transforming Futures: An Explanatory Multiple Case Study Of The Smou Schools In Saudi Arabia, Hana Ali Alzandi Alghamdi

Electronic Theses and Dissertations

Saudi Arabia’s Vision 2030 emphasizes educational reform as a critical pathway for national development, highlighting the role of educators in fostering student success. The Smou program, a professional development initiative, seeks to enhance the instructional and leadership capacities of school leaders and teachers in elementary public schools. This study explores how school leaders navigate their role in supporting teachers’ application of Smou program strategies and how teachers perceive their preparation for implementing these strategies in their instructional practices. Using an explanatory multiple case study approach, the research explores two elementary schools in the Mecca region—one high-performing and one low-performing—selected based …

Development, Optimization, And Validation Of A High-Sensitivity Capillary Zone Electrophoresis System For Bioanalytical Applications, Aaron I. Mena

Electronic Theses and Dissertations

Capillary zone electrophoresis (CZE) is a powerful analytical technique widely used for biomolecular separation due to its high resolution, efficiency, and sensitivity. This report presents the development and validation of a novel CZE system designed to improve modularity, reproducibility, and operational efficiency. The system integrates a laser-induced fluorescence (LIF) detection method with a 488 nm laser, enhanced fluid control through a negative pressure system, and a user-friendly GUI for automated operation and data acquisition. Performance verification included pressure stability tests, fluorescence accuracy assessments, and electrophoretic reproducibility studies. Comparative analysis with a previous CZE iteration confirmed improved baseline stability, peak resolution, …

Advancing Tka Biomechanics: From Joint Simulator To Boundary Condition Development, Yashar Ali Behnam

Electronic Theses and Dissertations

This dissertation addresses four specific aims that collectively attempted to advance the experimental and computational analysis of total knee arthroplasty (TKA) components. The first study focused on the development of a novel whole knee joint simulator capable of simultaneous tibiofemoral and patellofemoral knee loading. This simulator employs custom fixturing to facilitate dynamic, unconstrained, muscle-driven PF articulation alongside controlled TF contact mechanics. Validation against experimental measurements showed strong agreement, demonstrating the simulator's potential as a valuable tool for future TKA design and surgical technique investigations.

The second study verified implant-specific physiological boundary conditions which accurately simulate activities of daily living using …

Determinants Of Knee Motion In Health, Disease, And Repair, Sean Edward Higinbotham

Electronic Theses and Dissertations

The human knee joint is a complex and intricate structure, enabling a wide range of motions and facilitating various dynamic activities throughout a person's lifetime. The combination of the knee's complexity and its role as a primary load-bearing joint has made it susceptible to regular wear and tear, leading to pain and the development of Osteoarthritis (OA), to which, the only treatment currently is total knee arthroplasty (TKA). Despite TKA being a mature procedure, 20% of patients receiving a TKA are dissatisfied with their “new” knee. To reduce that 20% dissatisfaction and improve surgical outcomes, orthopedic companies are developing advanced …

Recently Terminated Ncaa Collegiate Football Coaches’ Perspectives On Organizational Support Received From Former Athletic Director And Athletic Department, Jeffery John Hancock

Electronic Theses and Dissertations

Every year, many head football coaches at the NCAA Football Bowl Subdivision are fired

without cause. The leading factor of these dismissals occurs when the team fails to meet

stakeholders’ expectations of winning enough games. Termination is not only problematic for

the coach, but the team, athletic department, its student-athletes, and the institution, as often a

change in coach does not solve the problem. Many factors lead to a losing season in both

athletics and corporations, including the level of organizational support. In the research on

collegiate coaching, this is an overlooked topic. The purpose of this qualitative, descriptive case …

Management Of Aggressive And Disruptive Behavior In The Emergency Department Using De-Escalation Techniques And Simulation: A Quality Improvement Project To Improve The Knowledge And Confidence Of Emergency Department Nurses And Clinical Staff, Ernestine Darby-Littlejohn

Electronic Theses and Dissertations

Abstract

Approximately 40% of all healthcare workers have reported episodes of violence by patients over the last 2 years. This Veteran’s Health Agency reported 824 disruptive events reported in the last 5 years, of which 56 occurred in the emergency department. Research shows that interventions are not always timely, resulting in the clinical staff requesting the Veteran’s Health Agency Police to intervene when a veteran’s level of stress is escalating. The gap in practice is shown to be related to a lack of knowledge in the clinical staff in managing high stress levels exhibited by some veterans, limited knowledge of …