Digital Commons Network^™

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 …

Commitment To The Profession: Elementary Teacher Perceptions Of Self-Determination And Professional Retention In Tennessee, Riley A. Prickett-Armstrong

Electronic Theses and Dissertations

Teacher burnout and loss of teachers in the profession have affected school and district capacity to effectively staff all positions. The pandemic brought about unique changes and challenges to classrooms worldwide, disrupting the educational process for over 94% of the world’s student population. The purpose of this phenomenological study was to examine factors influencing teacher self-determination and retention at the elementary school level in Tennessee school districts to better understand how administrators can support teachers. The central research question investigated elementary teacher perceptions of self-determination and professional retention. A series of in-depth interviews with twelve participants produced data and subsequent …

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 …

Racial And Geographic Disparities In Primary Care Transitions For Postpartum Women With Gestational Diabetes And Hypertension In South Carolina, Kajol Dahal

Electronic Theses and Dissertations

Introduction Gestational diabetes (GDM) and gestational hypertension (GH) are significant public health issues with lasting implications for maternal and child health (MCH). Despite clinical guidelines recommending postpartum care for all women, especially those with chronic conditions, less than 50% receive a visit within 12 months of childbirth. Recent policy changes extend postpartum Medicaid coverage from 60 days to 12 months. This study assessed differences in postpartum care visits by race/ethnicity and geography after the extension of postpartum coverage in South Carolina. Methods A retrospective cohort of 27,056 women (aged 20-44) who gave birth in 2021 were analyzed using Medicaid claims …

The Moderating Role Of Social Support For Lgbtq People In South Central Appalachia: Present Yet Unimpactful?, Paige Henry

Electronic Theses and Dissertations

Lesbian, gay, bisexual, transgender, and queer (LGBTQ) minority stress theory states that LGBTQ people experience stressors specific to their identity that result in negative mental health outcomes. Social support has been shown to protect against these negative outcomes, but South Central Appalachia is known to be high stigma and low resource for this population. The present study examined the potential moderating impact of four sources of social support (family, friends, partners, and pets) on the relationship between minority stress experiences and psychological distress for LGBTQ people living in South Central Appalachia. Participants included 116 LGBTQ adults living in South Central …

Exploring Predictors Of Treatment Dropout In Primary Care Behavioral Health Using Andersen’S Behavioral Model Of Health Services, Mara W. Sindoni

Electronic Theses and Dissertations

A recent meta-analysis indicated a 19.7% dropout rate from outpatient mental health care. Andersen’s Behavioral Model of Health Services identifies predisposing, enabling, and need factors as potential predictors of treatment dropout. The Primary Care Behavioral Health (PCBH) model aims to improve accessibility of mental health care but research on dropout in this setting is lacking. This study examined bivariate relationships between Andersen's factors and dropout in PCBH, and interviewed participants about their intentions to attend subsequent PCBH visits. No statistically significant bivariate relationships were found, likely due to small sample size (n = 15). Reflexive Thematic Analysis identified two themes …

Reading Between The Lines: A Mixed Methods Investigation Of Teachers’ Understanding And Implementation Of The Science Of Reading, Karen L. Dumas

Electronic Theses and Dissertations

Throughout the nation, the science of reading (SoR) is sweeping through schools, realigning instructional practices, altering curricula, and causing a shift in educators’ ideologies. Therefore, exploring teachers’ understanding of the science of reading and the classroom implementation may offer valuable insights for school leaders, policymakers, and educators during this period of transition. This explanatory sequential mixed methods investigation researched SoR knowledge and implementation of K-3 general education teachers in Pennsylvania.

This study took place in two phases: quantitative followed by qualitative. During the quantitative phase, 141 K-3 teachers in Pennsylvania participated in the Teacher Understanding of Literacy Constructs and Evidence-Based …

“With Neither Hope Nor Fear”: Continuity In The Life Of Isabella D’Este, Alyssa Murphy

Electronic Theses and Dissertations

Isabella d’Este is traditionally viewed as the most notable female art patron of Renaissance Italy, primarily studied for her excellent taste. This positive interpretation has left her out of the reputational rehabilitation that modern historians have applied to many of her contemporaries, and what recent work has been done focuses on her marriage. However, Isabella outlived her husband by nearly twenty years, and contrary to writers who view that widowhood as an afterthought, she remained a dominant political and cultural figure in her own right. This thesis reassesses Isabella’s letters to argue that the traditional segmentation of her life does …

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 …

Inner Bonds, Caitlin M. Maltbie

Electronic Theses and Dissertations

The artist, Cait Maltbie, discusses their Master of Fine Arts exhibition, Inner Bonds, which was installed at Slocumb Galleries in Johnson City, TN, from March 24, 2025, through April 4, 2025, with a public reception held on March 27, 2025. The exhibition consisted of multi-disciplinary work: zines, screenprints, and a sculptural installation mimicking the scenery and emotional environment of the imaginary Inner Bonds world. Inner Bonds refers to their comic series about feelings and how they are handled, from which all the content for this exhibition is derived. The work is focused on deconstructing the artist’s feelings so that they …

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 …

Student Performance And Course Modality: The Relationship Between Outcomes, Modality, And Course Subject, Olivia Baxley

Electronic Theses and Dissertations

The purpose of this quantitative study was to identify if a significant relationship existed between teaching modality and student performance outcomes while also considering the factor of course subject being taught during the 2021-2023 academic years. Three courses were included in the research: Math 1630 Finite Mathematics, English 1010 Composition I, and Biology 1110 General Biology. Each of the three courses are introductory level courses in the math, English, and science subject. The study also included statistical analysis on gender as related to student performance outcomes.

The findings presented of this research showed a significant relationship between teaching modality and …

Brand Media And Health Perceptions: A Thematic Analysis Of Generational Differences, Julie Irene Diaz

Electronic Theses and Dissertations

This thesis explores the influence of brand identity and media on shaping evolving perceptions of health across generations. The three generations considered are Generation X, Millennials, and Generation Z. The initial hypothesis predicted the popular media and brands that each generation interacts with are most likely to influence their perception. Additionally, the health brands most popular with each generation would influence their overall health perception, based on the identity and values of the brand. A qualitative study was conducted using focus groups to gather data about health perceptions, brand identity, media influence, and holistic health. The findings suggest that individuals …

Immersive Influence: Examining The Impact Of Virtual Reality On Brand Perception Among The Innovation Generation, Holden Gaylor

Electronic Theses and Dissertations

Now more than ever, brands must create innovative and engaging experiences to enhance perception and build consumer trust. Virtual reality (VR) offers an opportunity for brands to achieve these goals by providing immersive, interactive experiences that, when done right, can strengthen key brand metrics. Despite the growing use of VR in experiential marketing, research on VR’s effectiveness in shaping brand perception and influencing authenticity remains limited. Grounded in media richness theory, this study examined how VR impacts brand perception and whether media richness influences authenticity.

Using a mixed-methods approach, 20 participants engaged with the “Wendyverse,” a branded VR environment. Pre-, …

Performative Masculinity In Ducal Literature In Florence (1520-1580), Matthew T. Perkins

Electronic Theses and Dissertations

Ducal literature of sixteenth-century Florence illuminates the performative nature of gender and sexuality, especially in regard to masculinity. The impetus of this study is Benvenuto Cellini’s autobiography, My Life. While contemporary historiographical studies examine Cellini’s work for its overt misogyny and violence, this work argues that the performative nature of gender, through interdisciplinarity and contextual analysis, offers a highly complex view of masculinity. Cellini’s autobiography directly relates to Giorgio Vasari’s The Lives of the Most Excellent Painters, Sculptors, and Architects. Vasari’s accounts of Michelangelo di Lodovico Buonarroti Simoni and Giovanni Antonio Bazzi, called Il Sodoma, emphasize the importance of fashioned …

Diversity In Beauty Brand Marketing On Instagram: The Case Of Fenty Beauty, Julia K. Narh

Electronic Theses and Dissertations

Diversity in beauty brand marketing is increasingly important as platforms like Instagram shape consumer perceptions. This study analyzes how Fenty Beauty, MAC Cosmetics, and L’Oréal represent diversity, particularly skin tone, in their Instagram content, using source credibility theory and social identity theory. A content analysis was conducted to evaluate how visual elements relate to engagement, measured by likes, comments, and shares. Findings show that Fenty Beauty features more dark-skinned models than its competitors. However, posts with darker-skinned models do not receive higher engagement. Instead, factors like model attractiveness and hair type, especially curly hair, drive interaction. Although Fenty’s posts generally …

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 …

The Importance Of The Relationship Between General And Special Education Co-Teachers In Inclusive Preschool Programs, Ruth Copeland, Ruth B. Copeland

Electronic Theses and Dissertations

A qualitative case study was designed to examine the importance of the relationship between general and special education co-teachers in inclusive preschool programs. The holistic strengths-based portraiture method will be used to study the positive aspects of the relationships of two co-teaching teams. In-depth interviews with individual teachers, co-teaching teams, and administrators combined with a questionnaire and classroom environmental rating scales were used to examine the culture and community that build positive relationships between general educators and special educators who co-teach in an inclusive preschool setting. The main goal of this research was to identify critical elements that contribute to …

Intraspecific Genetic Variation In Green Salamanders (Aneides Aeneus) At Bays Mountain Park, Brianna Drake

Electronic Theses and Dissertations

Accurate taxonomy is crucial for conserving vulnerable cryptic species like the green salamander (Aneides aeneus) in the Southern Appalachian Mountains. Prior studies identified three distinct lineages within the A. aeneus complex: Northern Appalachians, Southern Appalachians, and Blue-Ridge Escarpment. One previously collected sample indicated green salamanders in northeast Tennessee fit within the Northern lineage. The present study uses molecular data of A. aeneus at Bays Mountain Park (BMP) in Kingsport, Tennessee, to determine where the BMP population fits within these lineages. It was hypothesized that individuals from BMP belong in the northern lineage. Tail tips were collected from thirty-four …

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 …

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 …

Held On By A Thread, Annie M. Hutchins

Electronic Theses and Dissertations

The artist, Annie Hutchins, discusses her Master of Fine Arts thesis exhibition, Held on by a Thread, which was installed at Tipton Gallery in Johnson City, TN, from March 6, 2025, through March 28, 2025, with a public reception held on March 7, 2025. The exhibition is a collection of textile works containing repurposed material artifacts of the life she shared with her maternal family since childhood. The artwork incorporates found objects from the artist’s home, including domestic textiles, clothing, handmade sewing projects, family photographs, and sewing notions. The artworks are made using the printmaking technique of photo emulsion screen …

Forest School Educators’ Approaches And Perceptions Of Teaching, Learning, And Children's Behaviors: A Qualitative Multiple-Case Study, Saundra Stiles

Electronic Theses and Dissertations

This qualitative multiple-case study explored five forest schools in the East Tennessee region of the United States. The aim of this research study was to further the understanding of forest schools. The purpose of this study was to understand and describe forest school educators’ approaches and perceptions to teaching and learning in relation to behavior management, the environment, and challenging behavior, as well as the ways in which forest school educators engage children in learning. This multiple-case study utilized a demographic survey, observations, photographs, focus groups, and semi-structured interviews to collect data. Data were analyzed using two-cycle coding, which revealed …

Administrator Perceptions Of Strategic Use Of Web-Based Digital Tools To Facilitate Learning, Shelley Sayers

Electronic Theses and Dissertations

The purpose of this phenomenological study was to examine the perceptions of principals, assistant principals, and supervisors in the strategic use of web-based instructional tools to facilitate learning in 6th, 7th, and 8th grade English Language Arts. The study focused on administrators and supervisors in one district in Tennessee because these educational leaders observe classroom teachers regularly through the Tennessee Educator Acceleration Model.

Data collection strategies included semi-structured individual interviews with 12 educators who are in administrative or supervisor roles within the school district. Analysis of data occurred by transcription of interviews, member checking, and coding. The researcher then identified …

Characterization Of Residual Mineral Content Of Bauxite Stockpiles In Saline County, Arkansas: An Xrd Analysis Approach, Andrew Kaze Sezibera

Electronic Theses and Dissertations

The Saline Mining District of central Arkansas once led U.S. alumina production and hosts extensive bauxite and nepheline syenite deposits. With the depletion of highgrade ore, renewed interest in bauxite stockpiles has focused on critical mineral potential. Previous X-ray Fluorescence studies have identified critical elements in significant concentrations, including uranium (U), thorium (Th), gallium (Ga), molybdenum (Mo), and lanthanides (Ln). This study examines five stockpiles (SP1, Clay, SP2, SP3, and SP4) in Section 20 of the Aluminum Company of America (ALCOA) Saline County bauxite mine, using Xray Diffraction (XRD) on 25 samples to characterize mineral phases and compare them with …

Angelic Wasting: The Impacts Of The Enlightenment, Evangelicalism, And The Industrial Revolution On Romanticization Of Tuberculosis In England, 1800-1850, Sara M. Sudano

Electronic Theses and Dissertations

This thesis aims to elucidate the intersections between the portrayal of tuberculosis in the Romantic era and the Enlightenment, evangelism, and the Industrial Revolution. This study aims to do so by locating and analyzing depictions in the primary source representations of the disease, then considering the effects of the three factors mentioned above on its representation. The Enlightenment, evangelism, and the Industrial Revolution interacted in a variety of ways, and the influence of all three factors was found within the representations of tuberculosis, albeit in often indirect ways. In the novels of Elizabeth Cleghorn Gaskell and Charlotte Brontë, tuberculosis was …

Lidar-Based Delineation Of Karst Features In The Gypsum Plain, Eddy County, New Mexico And Culberson County, Texas, Kaitlyn Rae Levassar

Electronic Theses and Dissertations

The Gypsum Plain of the Delaware Basin encompasses approximately 1,800 km² of massive to laminated gypsum (anhydrite in the subsurface) outcrop of early Ochoan Castile and Salado strata. These extensive Permian-age evaporites host significant karst phenomena as a result of the region's complex hydrogeologic system which has continuously evolved since the early Paleogene. Karst features that manifest surficially as sinkholes when breached range from extensive hypogene cave systems to epigene features and suffosion caves. In contrast, paleo-collapse structures forming breccia pipes attesting to more ancient karst within these strata often manifest as topographic highs across the Gypsum Plain.

Until …

Identifying Salt Suture Zones And Lithological Changes Of The Louann Salt In The Gulf Of Mexico Basin, La. U.S.A., Jamie Dale Singer

Electronic Theses and Dissertations

The Louann Salt, a key evaporite unit in the Gulf of Mexico Basin, influences salt tectonics, hydrocarbon migration, and basin evolution. This study examines Louann Salt deposition and deformation within the Puma Diapir, focusing on mineralogical, geochemical, and structural features of suture zones in three offshore wells (Puma 2(w), Puma 3, and Panther). Using drill cuttings, X-ray fluorescence (XRF), inductively coupled plasma mass spectrometry (ICP-MS), X-ray diffraction (XRD), well-log data, and 3D seismic interpretation, the study analyzed salt composition and suture formation. Results show the salt primarily consists of halite, with minor anhydrite, gypsum, and sylvite, indicating continuous precipitation. Geochemical …

Non-Esl High School Teachers’ Instructional Training And Professional Development Needs And Their Emergent Bilingual Student Classrooms, Brynn Erin Caddell

Electronic Theses and Dissertations

The U.S. emergent bilingual student population continues to grow and is projected to increase nationwide. The growing population of students has specific academic and social needs that need to be addressed and provided for emergent bilingual students to be successful. This qualitative case study examined the instructional needs of high school non-English as a second language (ESL) teachers who serve emergent bilingual students and how the district can support the instructional practices of high school teachers in an urban school district in Texas. The problem addressed in this study was the lack of instructional training and professional development for secondary …

The Effects Of Gibberellic Acid, Smoke Water, And Cold Stratification On The Germination Of Asclepias And Liatris Seeds, Jemima Essien

Electronic Theses and Dissertations

Seed dormancy presents a significant challenge in the propagation of many native perennial species, including members of the Asclepias and Liatris genera. This study evaluated the effects of cold stratification and chemical treatments on the germination performance of six Liatris species and five Asclepias species using water (control), gibberellic acid (GA), smoke water (SW), or a combination of both (GA+SW) as chemical treatments. The primary objective was to determine whether smoke water could significantly enhance germination and serve as a viable pre-treatment method for horticultural use. Results indicated that stratification significantly enhanced germination, with stratified seeds achieving an average germination …