Digital Commons Network^™

Landslide Susceptibility And Tree Ring Eccentricity Analysis Along Unstable Slopes Of The New River Watershed, Anderson And Morgan Counties, Tn, Megan Palmer

Electronic Theses and Dissertations

Landslides are mass movements that affect infrastructure across East Tennessee, causing problems for the Tennessee Department of Transportation (TDOT). An assessment of conditions and locations of unstable slopes can aid TDOT in infrastructure management. Landslide susceptibility was evaluated for Anderson and Morgan counties, TN, off State Route 116 in the New River watershed. Susceptibility maps used a landslide inventory and six factors: elevation, slope, geology, distance from stream, rainfall, and curvature, input in forest-based classification and logistic regression models. Additionally, affected trees along these unstable slopes in Anderson and Morgan counties were cored to analyze mass movement impacts on tree …

Conversion Of Microcrystalline Cellulose To Hexane Using Hydrogenated Metal Oxides At Low Temperature And Pressure, Mubarak Osman

Electronic Theses and Dissertations

Increasing global energy demand and environmental concerns have fueled the exploration of sustainable and efficient methods for renewable fuel production. The conversion of cellulosic waste to hydrocarbon fuels using hydrogenated metal oxides presents a novel and eco-friendly approach to sustainably address energy demand. In this study, hydrogenated metal oxides were used as catalysts in a relatively low-temperature and atmospheric-pressure environment to facilitate the conversion of cellulosic waste into hydrocarbon fuels. Hydrogenated metal oxides have been introduced as potential hydrogen transfer catalysts. The expected result is the selective conversion of cellulose to hexane at relatively low temperatures, which significantly reduces energy …

A Phenomenological Study Of The Experiences Of Undergraduate Students Who Participated In The Ronald E. Mcnair Postbaccalaureate Achievement Program, Alexandria C. Craft

Electronic Theses and Dissertations

The purpose of this qualitative study was to explore the lived experiences of former McNair Program participants at a regional postsecondary institution in northeast Tennessee. More specifically, the study examined how past participants of a McNair Program perceived their program experiences related to their post-undergraduate educational endeavors and career pursuits. Although research has been conducted on McNair Programs, no research has been conducted on the lived experiences of individuals who participated in a McNair Program in northeast Tennessee within the last two decades, and little to no research has been conducted to identify the program components that former participants believe …

Factors Influencing Student Persistence Through Undergraduate Degree Completion: A Case Study Of The Social Engagement Of Black Students At A Private Historically Black College And University., Kayla Siddell

Electronic Theses and Dissertations

This qualitative exploratory single-case study examined the social engagement strategies utilized by one HBCU and the influences of these strategies on Black undergraduate students' sense of belonging and social engagement, which have been found to support and improve student persistence. Previous research on Black undergraduate students' social engagement and persistence has been primarily conducted at predominately White institutions (PWIs), with few studies explicitly focusing on social engagement and persistence at HBCUs. The site selected for this study was an HBCU under the pseudonym Fillmore State University (FSU). A qualitative exploratory case study was utilized as this methodology allowed the researcher …

The Influence Of The Principalship In Retaining Novice Teachers, Casey Whittle

Electronic Theses and Dissertations

Abstract

The purpose of the qualitative descriptive study was to understand novice teachers’ perspectives of principal behaviors that keep them employed in a North Texas school district. A purposive sample of 12 novice secondary teachers and six secondary principals participated in semistructured interviews. The individual interviews were recorded and transcribed. In vivo coding and structural coding were used to analyze the data. The findings of the study confirmed that participants in the study believed certain behaviors of secondary principals influenced novice teacher retention. Novice teacher participants expressed a need to trust their principal and fit into the principal’s vision and …

Culture Education Program To Improve Work Culture In Healthcare, Ngufor Fube Divine

Electronic Theses and Dissertations

Abstract

This study investigated the efficacy of a culture educational intervention program in addressing toxic work culture within healthcare settings. The prevalence of toxic work environments in healthcare has been linked to adverse outcomes for both employees and patients. The purpose of this study was to assess the impact of a targeted culture educational intervention on shifting organizational culture towards more positive dimensions, specifically focusing on Clan, Adhocracy, Market, and Hierarchy cultures. Utilizing a quantitative quasi-experimental design, this study employed repeated measures to assess participants' perceptions of organizational culture before, immediately after, and preferred following the intervention. The sample consisted …

Community College Engineering Degree Partnerships With 4-Year Universities, Jeffrey Mark Stear

Electronic Theses and Dissertations

Increasing the number of STEM professionals and reducing inequities in STEM are national priorities. Community colleges are important to address these concerns because they represent a higher percentage of underrepresented minority (URM) and women students. However, students starting 4-year STEM degrees in community college have had a lower completion rate. Partnerships between community colleges and 4-year universities have the potential to improve success for community college students, but more research is necessary. The purpose of this ex post facto, quantitative, correlational study was to determine the relationships among participation in different types of partnerships between community colleges and 4-year universities, …

The Impact Of Gratitude On Academic Advisor Job Satisfaction, Alexandria M. Widener

Electronic Theses and Dissertations

Academic advisors face high job demands and have among the highest turnover rates in higher education. Gratitude may have a positive impact on job satisfaction, but it has not been studied in this population. The purpose of this quantitative correlational study was to understand how dispositional gratitude at work, expression of gratitude at work, and receipt of gratitude at work predict job satisfaction in academic advisors. Academic advisors who were members of NACADA: The Global Community for Academic Advising, served in a full-time role at an institution of higher education in the United States, had worked a minimum of 6 …

Resiliency, Mindset, And Academic Performance: A College Athlete's Perspective, Trisha C. Giacomazzi

Electronic Theses and Dissertations

The problem addressed in this qualitative case study was the low graduation rates self-reported by the National Association of Intercollegiate Athletics institutions when compared to the general student population at a small Christian university in the Southern United States. In this study, I sought to acquire a deeper understanding of the degree to which an athlete’s mindset and psychological resilience influenced their perseverance and academic achievement on their path toward graduation. Utilizing semistructured interviews as the primary data collection method, I used purposive, convenience, and snowball selection methods to enlist a total of 10 participants from a pool of 52 …

An Exploration Of The Role Of Alternative Certification Programs In Teacher Preparedness, Bianca Dugas

Electronic Theses and Dissertations

Alternative certification programs (ACPs) recently gained popularity due to their brevity and appeal to second-career candidates. However, research shows that alternatively certified teachers often need more pedagogical skills than traditionally certified teachers, leading to the possibility of experiencing challenges their first year as an educator. To address this problem, the role of ACPs in teacher preparation was investigated to identify ways to close the gaps and provide ongoing support to alternatively certified teachers. The purpose of this study was to explore the preparedness of teachers based on their experiences in their ACPs. The study was framed within Malcolm Knowles’s adult …

Quantum-Powered Battery Scheduling In Modern Distribution Grids, Diba Ehsani

Electronic Theses and Dissertations

The rising need for exploiting a novel and evolved computation is an increasing concern in the power distribution system to address the exponential growth of distribution-connected devices. Scheduling numerous battery energy storage systems in an optimal way is one of the emerging challenges that will be more noticeable as the number of batteries, including residential, community, and vehicle batteries, increases in the grid. This thesis focuses on this topic and offers a necessary component in building the quantum-compatible distribution system of the future. Using a constrained quadratic model (CQM) on D-Wave’s hybrid solver as well as a binary quadratic model …

The Interplay Of Spin, Charge, And Heat: From Metal/Insulator Heterostructures To Perovskite Bilayers, Sam M. Bleser

Electronic Theses and Dissertations

In this dissertation begin with an investigation of non-local spin transport in an amorphous germanium (a-Ge) sample via the inverse spin Hall effect (ISHE). In that study we show that commonly used techniques such as differential conductance and delta mode of a paired Keithley 6221/2182a for non-local resistance measurements can lead to false indicators of spin transport. Next, we turn out attention to a thickness dependent study in thermally-evaporated chromium (Cr) thin films on a bulk polycrystalline yttrium-iron-garnet (YIG) substrate. This project analyzed the spin transport in the Cr films versus thickness via the longitudinal spin Seebeck effect (LSSE). This …

Harmonic Data: Ai Music, Edm Transcription, & Minimalist Jazz, Trevor Freed

Electronic Theses and Dissertations

This thesis presents research in the domains of music theory and music technology. The topics of the three chapters are as follows: (1) the technical and artistic limitations of artificial intelligence when generating music, (2) the transcription of electronic dance music (EDM) using a hybrid notation system, and (3) the effective convergence of jazz and minimalism in the music of Joe Hisaishi from Studio Ghibli. Each topic investigates a different aspect of harmony and the modern ways in which humans communicate in terms of harmony. The first chapter surveys the latest research projects in AI-generated music and proposes ideas for …

Thermal, Electrical, And Spin Transport: Encompassing Low-Damping Ferromagnets And Antiferromagnetic/Ferromagnetic Heterostructures, Matthew Ryan Natale

Electronic Theses and Dissertations

Continuing technological advancements bring forth escalating challenges in global energy consumption and subsequent power dissipation, posing significant economic and environmental concerns. In response to these difficulties, the fields of thermoelectrics, spintronics, and spincaloritronics emerge as contemporary solutions, each presenting unique advantages. Thermoelectric devices, based on the Seebeck effect, other a passive, carbon-free energy generating solution from waste heat. Although current thermoelectric technology encounters hurdles in achieving optimal efficiencies without intricate designs or complex materials engineering, recently research into low-damping metallic ferromagnetic thin films have provided a new method to enhance spin wave lifetimes, thus contributing to thermoelectric voltage improvements. As …

Finite Element Analysis Of Thermal-Mechanical Instabilities In Nonmetallic Friction Composite Material, Joseph-Shaahu Shaahu

Electronic Theses and Dissertations

Thermal-mechanical instability (TMI) has been a research topic of interest as it focuses a lot on transportation systems. Thermal-mechanical instability was first noticed in railway and experimentally studied with a pin-to-pin or pin-to-surface setup of sliding contact. The topic has been extended into brakes and clutches which are two of the most common sliding systems most susceptible to thermal buckling and thermoelastic instability (TEI), where thermal buckling and thermoelastic instability are two sub-categories of thermal-mechanical instability. Thermal-mechanical instability is an ongoing research to better understand the phenomenon and the limits at which such instability occurs. This work delved into the …

Phenomenological Inquiry Into Middle School Teachers’ Perception Of Creativity, Katalin Grajzel

Electronic Theses and Dissertations

Researchers do agree that creativity is an ability that can be developed and should be fostered (Guilford, 1958; Parnes, 1961). Teachers play an important role in creativity development and often serve as gatekeepers to identify gifted and talented students (Bianco et al., 2011; Novak & Jones, 2021; Schack & Starko, 1990). However, teachers’ judgment of their students’ creativity often only correlates weakly with the results of creativity measures (Kettler et al., 2018; Torrance, 1963). Therefore, in this study I explored teachers’ perception of creativity and creative students as well as factors that support or hinder creativity. The findings revealed that …

Cross-Institutional Collaboration And Exhibit Making: “On The Gold Mountain: Chinese Mining History And Heritage Of Idaho” At The Idaho Museum Of Mining And Geology, Jordan Kathleen Bennett

Electronic Theses and Dissertations

The Gold Rush, which brought many new immigrant communities to the American West, made a permanent impact on American culture by prompting the development of many Western towns. However, the Chinese immigrant mining population in the Boise, Idaho area has had little museum representation despite the more than 300,000 Chinese people who emigrated to the US between the 1840s and 1880. To rectify this, the Idaho Museum of Mining and Geology (IMMG), in collaboration with members of the Payette National Forest, the Asian American Comparative Collection, Boise State University/US Army Corps of Engineers, and the University of Denver, developed an …

Data-Driven Approaches For Enhancing Power Grid Reliability, Behrouz Sohrabi

Electronic Theses and Dissertations

This thesis explores the transformative potential of data-driven approaches in addressing key operational and reliability issues in power systems. The first part of this thesis addresses a prevalent problem in power distribution networks: the accurate identification of load phases. This study develops a data-driven model leveraging consumption measurements from smart meters and corresponding substation data to reconstruct topology information in low-voltage distribution networks. The proposed model is extensively tested using a dataset with more than 5,000 real load profiles, demonstrating satisfactory performance for large-scale networks. The second part of the thesis pivots to a crucial safety concern: the risk and …

#Getinked: An Anthropological Exploration Of Tattooing And Social Media, Delanee Taylor

Electronic Theses and Dissertations

This thesis aims to address two inquiries regarding contemporary tattooing. The first goal is to explore how social media has changed the practice of tattooing while the second goal is to examine how tattoos are used to express or explore the differing facets of a person’s identity. Identity theory, social identity theory, semiotics, and the concepts of stigma and deviancy form the theoretical framework which allows one to understand the ways in which tattoos can provide insights into the various aspects of someone’s identity as well as how social media can influence members of the tattoo community. An online survey, …

Coping Strategies And Stress Of The Undergraduate Nursing Student In The Clinical Setting: An Evidence Based Practice Quantitative Study, Ashley Calverley

Electronic Theses and Dissertations

The assessment of perceived stress and coping behaviors related to first-semester clinical might benefit students in nursing education. The assessment of most common coping behaviors and perceived stress related to the clinical setting is essential due to difference in personalities, learning abilities, and coping behaviors among nursing students today. Previous research has suggested the initial clinical period results in adverse outcomes, such as poor academic performance, elevated burnout levels, and diminished personal well-being. These factors are detrimental to academic success in nursing programs. Evidence supports that helping students develop positive stress/coping abilities will aid in adapting in both the academic …

Dispositional Gratitude At Work Predicts Job Satisfaction Of Software Developers, Jordan Gabriel Tate

Electronic Theses and Dissertations

Software developers can suffer from negative emotions at work and low job satisfaction. Less is known about how positive emotions at work impact software developers. Gratitude is one positive emotion that has predicted job satisfaction in other studies. The purpose of this quantitative correlational study was to explore how gratitude at work predicts job satisfaction among software developers. The broaden-and-build theory of positive emotions and the find-remind-and-bind theory of gratitude guided the study. Participants included 146 software developers who were recruited via LinkedIn using purposive sampling. Participants completed an online survey, including the Gratitude Questionnaire-Six Item Form and the Appreciation …

Empowering Voices: Exploring The Career Trajectories Of Women Of Color Hr Professionals Amid Disruptive Change, Brandi R. Muñoz

Electronic Theses and Dissertations

This study investigated strategies to enhance diversity, equity, inclusion, and belonging initiatives in organizational leadership, focusing on supporting women of color in the workplace. The specific problem addressed was the underrepresentation and barriers faced by women of color in leadership positions despite their potential contributions to organizational success. The study employed a qualitative approach, combining qualitative interviews with socioeconomic data analysis. Data collection methods included semistructured interviews with women of color and a survey to gather demographic and employment information. The sample consisted of 16 women of color human resource professionals working in various industries and organizational settings across the …

The Role Of Organizational Leadership In The Success Of Higher Education Institutions: A Portraiture Study On Ashesi University In Ghana, Amanda Childress-Kannan

Electronic Theses and Dissertations

Research shows that higher education institutions in sub-Saharan Africa are severely under-resourced, systemically lack strong leadership, have low enrollment numbers, lack scholarly productivity, and have high rates of attrition and turnover of students and faculty. Higher education institutions in sub-Saharan Africa do not compete well globally, with low research productivity and failure to retain top scholars. Higher education institutions in Ghana are particularly facing this problem: Ghana has a relatively stable government, society, and economy, with less corruption and other malfeasance as compared to other countries in sub-Saharan Africa. Even with these advantages, Ghana generally fails to establish and maintain …

Life After The Pandemic: Use Of An Educational Coping Strategy Tool Kit For Healthcare Professionals, Christine Thorpe-Gilpin

Electronic Theses and Dissertations

Research has proven that acute care healthcare professionals (i.e., nurses, certified nursing assistants, and respiratory therapists have been experiencing ongoing challenges and ineffective coping mechanisms. The Toolkit for Emotional Coping for Healthcare Staff (TECHS) educational toolkit has introduced practical coping skills that could benefit healthcare workers. Using the TECHS has effectively inspired the development and usage of practical coping skills among healthcare workers. There were three tools included in the TECHS educational material to understand and manage adversity, which can be repeated for new or recurring stressful situations in a personal or team-based approach. These tools were based on cognitive-behavioral …

Increasing Folic Acid Self-Efficacy In College-Age Women Of Childbearing Age, Kristie Lynn Buchanan

Electronic Theses and Dissertations

Preventative measures taken by women of childbearing age before and during conception limit the risk of fetal defects or complications. One specific measure that is recommended by the Centers for Disease Control and Prevention is that all women of childbearing age take folic acid 400 mcg daily. Evidence-based research suggests that taking 400 mcg daily limits the risk of fetal neural tube defects if taken daily and started at least two months before conception. Fetal neural tube defects are classified as defects that damage the baby’s spine and brain. The researcher conducted an evidence-based practice project that sought to determine …

Effectiveness Of Antibiotic Stewardship For Healthcare Providers At Urgent Care Clinics, Helen T. Adewole

Electronic Theses and Dissertations

Antibiotics have revolutionized modern medicine; however, the overuse in urgent care and primary care significantly contributes to the global burden of infections resistant to available antimicrobial medicines. Approximately 30% of the antimicrobials prescribed in acute care settings are unnecessary. Patient demand for antibiotics has seemingly skyrocketed following the recent COVID-19 pandemic. Practitioners must be knowledgeable about antibiotic stewardship initiatives, such as the wait-and-see approach, to reduce antibiotic overuse and improve the trajectory of antibiotic resistance and patient health outcomes. The gap in practice was the limited awareness of scientific evidence-based tools to partner with patients and improve antibiotic prescription patterns. …

Parameter Identifiability Analysis And Calibration For Power System Dynamic Models, Lei Wang

Electronic Theses and Dissertations

Accurate dynamic models are crucial for stable and reliable power system operation, making their validation essential. The accuracy of parameter estimation is influenced by several factors, including available observables, model structure, and estimation methods. However, in dynamic models, estimating parameters can be difficult when some of them are unidentifiable, meaning their values cannot be uniquely determined from the available data. This challenge may stem from limited impact of parameters on the measured outputs, parameter interactions, or poor data quality. Therefore, an identifiability analysis should be conducted prior to parameter estimation or model calibration. This preliminary step helps to determine which …

Establishing Recharge Rates In The High Plains Aquifer: Mapping, Precipitation Modeling, And An Evaluation Of The Chloride Mass-Balance Method, Arindam Mukherjee

Electronic Theses and Dissertations

In this dissertation, three studies related to understanding and predicting recharge are presented. First, geospatial techniques were used to identify potential groundwater recharge areas in the High Plains Aquifer. Second, a precipitation generator was developed to produce site specific synthetic precipitation series that depend on daily precipitation occurrences, particularly on the distribution of wet spells for sites to be used in numerical modeling. Third, the unsaturated flow code VS2DI was modified to allow the simulation of chloride accumulation from recharge, and this model was used to evaluate errors in the Chloride-Mass-Balance (CMB) method for estimating recharge due to heterogeneity.

In …

Modified Loss Functions For Algorithmic Bias Mitigation, Christina Joy Trotter

Electronic Theses and Dissertations

Artificial intelligence and machine learning are becoming more present in everyday life. Training data distributions, amongst other variables, can cause these systems to be unfair. Users, as well as other individuals, may be negatively impacted. This work studies using modified loss functions to mitigate race and sex bias caused by data and models.

In the first experiment, the trade-off between fairness and accuracy when data is biased and unbiased is explored. A group risk function is introduced and used to create two versions of a modified loss function: Max Group Equity and Max Group Equality Binary Cross-Entropy (BCE). Both functions …

De Novo Design Approaches Toward The Development Of Artificial Cu Proteins (Arcups) For Activation Of Small Molecules With Functional Relevance To Cu Monooxygenases, Divyansh Prakash

Electronic Theses and Dissertations

Metalloenzymes catalyze various redox reactions in biogeochemical cycles involved in energy conversion. Our research focuses on Cu-based metalloenzymes, which perform diverse functions in nature and play a crucial role in substrate activation, energy conversion such as oxidizing methane to methanol by particulate methane monooxygenases (pMMOs), and biomass degradation by lytic polysaccharide monooxygenases (LPMOs), useful in biofuel production. However, much is unknown about how the active site and secondary/tertiary-sphere interactions in these enzymes determine their function. De novo protein design enables the creation of simpler model systems that closely resemble the structure and function of native enzymes. Using de novo protein …