Digital Commons Network^™

Reflecting On Psychotherapy In Adolescence: A Qualitative Analysis Of Processes Of Change, John Parigger

Electronic Theses and Dissertations

There is a sharp increase in anxiety and depression symptoms in adolescence, and many forms of psychotherapy are shown to be effective. However, most research has examined average effects for manualized treatments that address multiple areas of functioning, which makes it difficult to determine how psychotherapy causes positive change. Process-based therapy postulates that all psychotherapies work through promoting adaptive biopsychosocial patterns of behavior (i.e., processes of change). Research has increasingly focused on the process-based therapy model, and there is a need for qualitative studies to incorporate lived experience into our understanding of change processes. The current study utilized the process-based …

Tennessee General Education Preschool Teachers’ Perceptions Of Their Preparedness To Teach Young Children With Disabilities, Misty M. Moody

Electronic Theses and Dissertations

Under the Individuals with Disabilities Education Act (IDEA), local education agencies (LEAs) must educate young children with disabilities in the least restrictive environment (LRE) while ensuring opportunities to learn alongside their non-disabled peers. As inclusive opportunities for preschool-aged children with disabilities continue to expand, general education preschool teachers play an important role in providing instruction that meets the diverse needs of all children. However, limited research has examined general education preschool teachers’ perceptions of their preparedness to teach young children with disabilities, particularly in Tennessee.

This qualitative study explored Tennessee general education preschool teachers’ perceptions of their preparedness to teach …

Beyond Symptoms: Examining Perinatal Mental Health Care Among Black, Indigenous And People Of Color With Polyendocrine Metabolic Ovarian Syndrome, Vinaya Thomas

Electronic Theses and Dissertations

Perinatal mood and anxiety disorders (PMADs) are as a public health concern in the United States. Individuals from minoritized racial/ethnic groups face a significantly elevated risk of maternal morbidity, mortality, mental health disorders, and associated adverse outcomes. Emerging studies also reveal a higher likelihood of experiencing perinatal mental health concerns in individuals with polycystic ovarian syndrome (PCOS), currently known as polyendocrine metabolic ovarian syndrome (PMOS). People who identify as Black, Indigenous, or a person of color (BIPOC) face unique healthcare challenges given the added structural and social burdens. This online survey study aimed to 1) understand the relationship between PMOS …

Kinesiology Department Chairs’ Perceptions Of Their Training And Preparation, Kason O’Neil

Electronic Theses and Dissertations

Department chairs are responsible for leading academic departments in higher education.  These individuals regularly make important decisions regarding such things as managing faculty and academic programming, overseeing budgets, and supporting student needs. Despite these responsibilities, many people become department chairs without receiving formal leadership training. This study explored how kinesiology department chairs across the United States viewed their preparation for the role and the importance of leadership training. A total of 111 department chairs completed an online survey about their background, previous training, and the importance of training for different administrative responsibilities. The results showed that most chairs had little …

Weathering The Divide: Social Determinants, Neighborhood Context, And Systemic Lupus Erythematosus Among African American Women, Vanessa Cl Morman

Electronic Theses and Dissertations

Background: Systemic lupus erythematosus (SLE) disproportionately affects African American women and contributes to racial health disparities in the United States. Although genetic susceptibility influences disease risk, growing evidence suggests that social determinants of health (SDOH), including neighborhood conditions, structural racism, and socioeconomic disadvantage, contribute to disease development and progression. Epigenetic mechanisms may provide a biological pathway linking adverse social conditions to chronic disease disparities. This dissertation examined the influence of SDOH on SLE disparities through evidence synthesis and empirical investigation to inform public health practice and policy.

Methods: This integrated learning experience consisted of three complementary manuscripts. Aim 1 was …

Exploring Competitive Dynamics Between Pseudomonas Baetica And Salmonella In A Polymicrobial System, Braxton E.M. Stout

Electronic Theses and Dissertations

The global rise in antimicrobial resistance has catalyzed a greater focus on polymicrobial research aimed at characterizing microbial interactions and uncovering new therapeutic strategies. Though it has long been of interest, environmental soil-derived bacteria remain largely under-represented in research and thus uncharacterized in this field. This project aimed to identify soil microbes that display inhibitory mechanisms to potential nosocomial pathogens. Soil sample S1S3-2 displayed inhibitory phenotypes toward numerous bacteria and was identified as Pseudomonas baetica. In both planktonic and biofilm growth, P. baetica was able to inhibit Salmonella arizonae through a contact-dependent and temperature-dependent manner. Screening of a transposon insertion …

Computational Studies Of Triplet State Formation In Zinc Dipyrrin Complexes, Reuben Kwabla Adigbli

Electronic Theses and Dissertations

Zinc dipyrromethene complexes are promising earth-abundant photosensitizers due to their strong visible-light absorption and tunable excited states. To rationally design them for photocatalysis and photodynamic therapy, a molecular-level understanding of triplet-state formation is needed, but details of intersystem crossing remain unclear. To study the effect of π-extension, we synthesized an indole-substituted zinc dipyrrin complex: the dipyrromethane ligand was prepared from indole and mesitaldehyde, oxidized to the dipyrromethene, then coordinated with zinc. DFT and TD-DFT calculations determined ground and excited-state geometries and energies in different solvents, modeled absorption spectra, and visualized charge distributions. The results show how solvent polarity shifts energies …

An Assessment Of Accessibility And Affordability Of Inpatient Psychiatric Care In Tennessee, Kailee Havrda

Electronic Theses and Dissertations

Introduction: Access to mental health has seen changes over the past decade, but little research and attention have been given to access to inpatient psychiatric facilities. Inpatient psychiatric care is crucial for patients experiencing mental health emergencies who need immediate access to care. Gaps in spatial accessibility, affordability, and the access and assessment process were identified due to a lack of available information in the field.

Methods: Secondary data from the Tennessee Department of Health were used to assess financial accessibility through payer source charges and patient encounters, as well as through mapping of inpatient psychiatric facilities and conducting drive …

Kindergarten Teachers’ Perceptions Of Instructional Approaches For Teaching Sequencing Concepts: Worksheet, Hands-On, And Beebot-Integrated Lessons, Savannah P. Partin

Electronic Theses and Dissertations

The purpose of this qualitative multiple-case study was to explore kindergarten teachers’ perceptions of three instructional approaches for teaching sequencing concepts: worksheet-based instruction, hands-on manipulative instruction, and BeeBot-integrated instruction. Sequencing is a foundational early literacy skill that supports reading comprehension, story retelling, and understanding the order of events. Although sequencing is commonly taught through traditional instructional methods, limited research has examined how kindergarten teachers perceive the use of educational robotics as a tool for literacy instruction. The study was guided by constructivist theory, sociocultural theory, and developmental systems theory. Participants included six kindergarten teachers from a public elementary school in …

Cultural Humility In The Workplace: A Causal-Comparative Study Of Foreign And Local Hire Employees In International Education, Natalie A. Ortiz

Electronic Theses and Dissertations

Cultural humility is recognized as a framework for fostering respectful relationships in culturally diverse workplaces. However, limited research has examined cultural humility within international education in regard to workplace dynamics and power imbalances that may exist between foreign and local hire educators. The purpose of this quantitative causal-comparative study was to examine differences in perceived cultural humility levels between foreign and local hire employees in PreK-12^th grade private international schools in Central Asia and Eastern Europe. The study also examined whether years of international educational experience and the number of international educational assignments influenced perceived cultural humility levels. Data …

Barriers To Veterans Affairs (Va) Healthcare Utilization: Exploring The Underutilization Of Va Healthcare Services Among Rural, West Texas Veterans, Adam G. Rodgers

Electronic Theses and Dissertations

Rural veterans forgo Department of Veterans Affairs (VA) healthcare at disproportionate rates, and this study found that the primary barrier is not enrollment but utilization. Seven of the eight participants were already enrolled yet remained functionally outside the system. The purpose of this qualitative single-case study was to explore why rural West Texas veterans forgo and underutilize Veterans Health Administration (VHA) healthcare. Two research questions examined the perceptions contributing to that decision and the barriers preventing access. Andersen’s behavioral model of health services use provided the framework. Semistructured virtual interviews with eight rural West Texas veterans were analyzed using Braun …

Organizational Systems, Support Structures, And Principal Retention In Urban Secondary Schools: A Job Demands And Resources Analysis Of Belonging And Isolation, Meredith L. Perry

Electronic Theses and Dissertations

Principal turnover remains a challenge in high-poverty secondary schools, where leadership stability is critical to school improvement and student success. Although factors associated with principal attrition have been studied, less is known about how district-level systems and support structures shape principals’ experiences of connection, belonging, and professional isolation. This qualitative multiple-case study was conducted within a program evaluation context to examine how district policies, processes, and support structures functioned as job demands and job resources influencing principals’ experiences and retention decisions within a large urban school district. Guided by the job demands–resources (JD-R) framework, the study included four secondary principals …

The Role Of Hardiness On Leadership In Big-Box Retail Managers, Cari Alvarez

Electronic Theses and Dissertations

Retail managers face constant customer demands, unpredictable staffing, and high-pressure performance expectations, yet little research has examined how these leaders sustain effectiveness under such conditions. This qualitative descriptive study explored how big-box retail managers in the United States described their development and use of hardiness across the constructs of control, commitment, and challenge to lead in a complex retail environment, an area not previously examined in the literature. Hardiness theory served as the theoretical framework for the study. Data were collected through 12 semistructured interviews with retail managers and an online questionnaire completed by 45 qualifying respondents. Interview data were …

Navigating Leadership Transitions In Academic Affairs At Small Historically Black Colleges And Universities In The Southern United States: A Qualitative Study, Marquita Renee Mitchell

Electronic Theses and Dissertations

This study explored the specific problem that necessitates the functionality of departmental leadership, its outcomes, and emphasized leadership transitions. Researching leadership transitions can potentially enhance our understanding of how small HBCUs, particularly HBCUs with a student population of fewer than 5,000, can effectively navigate, ensuring the continuity and sustained success of the academic affairs department within the Southern U.S. region. To address this gap, this study engaged narrative methods while employing transformational leadership theory as a theoretical lens to explore the immediate and long-term impacts of leadership transitioning on strategic initiatives, staff morale, and outcomes within the academic affairs department, …

The Low Participation Of Women In The Truck Driving Industry, Aurora Floodine

Electronic Theses and Dissertations

Women remain underrepresented in the United States trucking industry, particularly in leadership roles, despite ongoing efforts to increase workforce diversity and address persistent driver shortages. This qualitative phenomenological study explored the lived experiences of female trucking professionals who began their careers as truck drivers and later advanced into leadership positions. The study examined the strategies that facilitated women’s progression into leadership and the systemic barriers that may limit their advancement within the trucking industry. Semistructured interviews were conducted with 11 female trucking professionals, and the resulting data were analyzed using thematic analysis. Six themes emerged from the findings: (a) independence, …

Don’T Let Us Down: A Phenomenological Study Of African American Employees’ Perceptions Regarding The Benefits Of Professional Development In Student Affairs, Courtney Nicole Demings

Electronic Theses and Dissertations

The experiences of student affairs professionals are critical to the success of higher education, allowing for a concentrated exploration of African American student affairs professionals who are often employed in 2-year U.S. community colleges. The general problem was that African Americans may leave student affairs in community colleges if they do not perceive supervisory support for professional development and, in turn, career advancement. The purpose of this dissertation was to understand and interpret their lived experiences, illuminate the barriers to their career advancement, and discuss the impact of supervisory support. As such, this action research employed qualitative research through the …

Enterococcus Abundance, Distribution, And Environmental Controls At A Sandy Shoreline, South Carolina, Usa, Helen Kehoe

Electronic Theses and Dissertations

Water quality monitoring crucially protects the health of beachgoers around the world. However, water-adjacent sediments, such as sandy beaches, are known to harbor harmful bacteria, yet are not monitored despite their intensive recreational use. This project monitored the abundance of fecal indicator bacteria (FIB), specifically Enterococci, in sandy beach sediments at beaches routinely monitored for water quality in Myrtle Beach and North Myrtle Beach, South Carolina. Surface sediment core sampling (0-5 cm) in the swash zone was conducted once per month for 4 months at 24 beaches in tandem with state-accredited surf-water FIB monitoring using IDEXX’s Enterolert test (Standard Method …

Spatial Variation In Resource Use And Species-Level Trophic Niches Of White And Brown Shrimp In North Inlet–Winyah Bay, South Carolina, Josie Bryan

Electronic Theses and Dissertations

Atlantic white (Penaeus setiferus) and brown shrimp (Penaeus aztecus) are ecologically and economically important species in the southeastern United States, supporting coastal food webs and valuable commercial fisheries. To understand their trophic dynamics in the North Inlet-Winyah Bay estuary, we conducted a spatial and temporal analysis using carbon (δ¹³C), nitrogen (δ¹⁵N), and sulfur (δ³⁴S) stable isotopes to evaluate trophic position and basal source contributions across three habitat types (river, bay, and marsh). Linear models were used to evaluate the effects of size (rostrum–carapace length, RCL, in mm), habitat, and species on trophic position, as well as the effects of habitat …

Comparison Of River Plume Classification Methods Using In-Situ Data, Payton Merica

Electronic Theses and Dissertations

River plumes transport terrigenous materials into the ocean, such as nutrients, pollutants, or sediment. These plumes can be separated into regions, including the source region, near-field, mid-field, and far-field, historically defined broadly by the governing forces in each region. Existing methods for classifying these plume regions are limited and often only take into account a subset of influencing factors. This study seeks to compare prior plume region classification methods, such as the Froude number and Rossby radius of deformation, to dominant dynamics within each region using momentum scaling proposed by Garvine (1995). Comparisons were derived from observational data collected during …

Long-Term Trends And Drivers Of Commercial Shrimp Fisheries Across The Southeastern U.S. Atlantic Coast, Trinity Assels

Electronic Theses and Dissertations

Long-term dynamics of southeastern U.S. Atlantic commercial shrimp fisheries reflect interacting environmental and socioeconomic processes rather than uniform regional decline. However, integrated, multi-state assessments linking these drivers to fishery-dependent indicators remain limited for the region. This study analyzed over four decades (1980–2023) of confidential fishery-dependent data from coastal South Carolina, Georgia, and northeastern Florida, focusing on the region where white and brown shrimp dominate commercial landings. Segmented regression analysis was used to identify structural shifts in long-term trends of landings, participation, and catch-per-unit-effort (CPUE), while multiple linear regression models identified seasonal temperature variables associated with interannual variation in shrimp CPUE. …

Presence And Impact Of Herbicides On Intertidal Benthic Communities, Marco Sanderson

Electronic Theses and Dissertations

The growing reliance and widespread use of herbicides on a global scale is negatively affecting non-targeted biota and, consequently, their ecosystems. Herbicide levels and their impacts have been extensively researched around the world in riverine and lacustrine ecosystems. However, studies of the levels and effects of herbicides on coastal intertidal benthic communities have been lacking. This study focused on testing spectrophotometric methodologies for herbicides (atrazine and glyphosate) and documenting their presence and levels in sediment, water, and biotic tissue of intertidal coastal beaches and marshes of Waties Island and Singleton Swash, Horry County, South Carolina. A laboratory microcosm was employed …

Initial Pilot Test Of A Single-Session Social Support Program For Increasing Social Approach Behavior And Social Support In Emerging Adults, Emily L. Jones

Electronic Theses and Dissertations

Emerging adulthood, the developmental stage between adolescence and young adulthood (Arnett, 2000), is marked by increases in autonomy, changes in social dynamics, and identity exploration (Arnett, 2015). During this stage, social stressors may trigger or exacerbate preexisting mental health problems (Slavich & Auerbach, 2018), though few emerging adults seek or receive mental health support (Zhao et al., 2025). Single-session interventions, or “specific, structured programs that intentionally involve just one visit or encounter” (Schleider et al., 2019), may present an opportunity to provide some support to those who face barriers to participation in traditional forms of treatment (Janota et al., 2022). …

Molecular Interactions Of The Gas–Solid Interface: Svocs On Swelling Clays And San Joaquin Soil Surfaces, Liesl T. Jensen

Electronic Theses and Dissertations

Soil-derived mineral dust plays an important role in atmospheric chemistry by acting as a reactive interface for gas–particle interactions that influence the fate and transport of organic contaminants. Among soil components, clay minerals dominate surface reactivity due to their high surface area, structural complexity, and the presence of chemically active sites arising from cation exchange capacity and surface acidity. Environmental conditions, particularly relative humidity, further regulate these interactions by altering surface accessibility and competitive adsorption processes.

Despite the recognized importance of mineral dust, gas-phase interactions between organic compounds and clay minerals remain insufficiently understood, particularly under atmospherically relevant conditions. This …

Adolescent Depressive Symptoms And Adult Functioning Within Major U.S. Racial Groups, Summer N. A. Millwood

Electronic Theses and Dissertations

Depression is the leading cause of disability among adults in the U.S and is associated with negative short- and long-term social, emotional, economic, and physical health outcomes. Notably, rates of depression among children and adolescents are rapidly increasing across the globe. Depression in youth disrupts crucial developmental processes that can adversely affect concurrent and longitudinal socioeconomic and health outcomes. Although extant research delineates the consequences of adolescent depression for adult functioning (e.g., lower educational attainment, fewer economic resources, worse physical health), studies that examine these associations within racially minoritized populations are scarce. This gap in the literature is especially striking …

Designing Inclusive Stem Curricula: A Design-Based Study Of Teacher Learning And A Queer Inclusive Framework, Kyle Nolting

Electronic Theses and Dissertations

STEM (Science, Technology, Engineering, and Mathematics) education has historically marginalized queer identities, shaping inaccurate curricula and fostering unwelcoming classroom environments. To address this, my research uses design-based research to investigate the design of queer-inclusive STEM curricular resources. I partnered with in-service secondary STEM teachers amidst a series of professional development courses to co-create curricular resources. My research is grounded in queer theory, using a Gender Inclusive Framework to collaboratively develop inclusive design principles. My findings revealed a strong desire by teachers for more authentic and fluid representations of gender and sexuality in STEM curricula, particularly beyond the biological science discipline. …

The Development And Validation Of Gains-Id, A Guidebook For Adapting Intervention Sessions For Students With Intellectual Disability, Kayla Mccreadie

Electronic Theses and Dissertations

Targeted interventions can equip students with intellectual disabilities (ID) with essential academic skills that support positive post-secondary outcomes. However, the lack of interventions specifically designed for this population creates barriers to equitable education. Until more interventions are developed, educators may benefit from resources that help adapt evidence-based practices to meet the needs of students with IDD.

The first manuscript introduces GAINS-ID (Guide for Adapting INtervention Sessions for Intellectual Disabilities). Based on best practices and Universal Design for Learning (UDL), the guide offers examples of adaptations to various intervention components—such as time, materials, environment, …

Asian American Men's Experiences Of Gendered Racism In Online Competitive Gaming, Calvin Weiting Lee

Electronic Theses and Dissertations

In the U.S., Asian Americans men make up a large portion of active players in online competitive video games. In these settings, harassment, racism, and hate speech are prevalent and often normalized. The purpose of this study was to explore Asian American men’s experiences of gendered racism in online competitive gaming spaces. Using an Interpretative Phenomenological Analysis approach (Smith, Flowers, & Larkin, 2022) and applying the Intersectionality Framework (Crenshaw, 1989; Collins, 2000), six Asian American men were interviewed about their experiences of gendered racism while playing online competitive games. Two Group Experiential Themes emerged from their accounts: 1) Gendered racism …

Biases Toward Threat In Categorization And Attention Allocation When Evaluating Static And Dynamic Emotional Crowds, Delaney Mcdonagh

Electronic Theses and Dissertations

Visual representations are often biased, and these biases can manifest across many different stages of perception. For example, when categorizing nuanced, ambiguous, or fleeting emotional expressions, most perceivers are biased to interpret expressions as negative. Biases also manifest at the level of attention-allocation as observers dynamically examine and attend to expressions as they visually navigate a crowd. To comprehensively understand biased emotion perception, it remains critical to understand how bias manifests across the process of making emotional judgements, both as observers gather information about faces over time and as they make a final categorization of what they see. Biased patterns …

Ensuring Safety In Battery Management Systems: A Control Barrier Function Approach, Magdalena Kossek

Electronic Theses and Dissertations

Safe and efficient operation of batteries is paramount to extending their lifespan and ensuring reliability in battery management systems. This work presents a new approach for maximizing safety and performance of lithium-ion batteries in a variety of applications with a view towards efficiency in computation. The aim is to maximize a battery’s output (its power, speed of charging, and overall efficiency) while preserving its longevity and ensuring operational safety. This challenge is tackled by developing a novel control algorithm for advanced lithium-ion battery management leveraging control barrier functions (CBFs) to ensure safe and efficient operation during fast charging and discharging. …

Behind Prison Walls: Unmasking The Victimization Experience Of A Transgender Inmate: A Narrative Study, Kevin E. Hemminger

Electronic Theses and Dissertations

Transgender individuals experience disproportionately high rates of victimization within the U.S. criminal justice system, at rates some studies estimate as four times greater than those of cisgender individuals (Marchi et al., 2025). Victimization may occur at the hands of correctional officers, institutional staff, or fellow inmates. This narrative study focuses on the life story of a formerly incarcerated transgender woman, tracing her experiences before incarceration, throughout her time at two different correctional facilities in two different states, and her life following release. While Community Based Research (CBR) was not adopted as a formal methodological framework, its principles — centering lived …