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 …

Leveraging Mammal Mycophagy To Determine Environmental Drivers Of Truffle Diversity, Brittany Hartsock

Electronic Theses and Dissertations

Many mycorrhizal fungi are hypogeous (truffle-forming), producing underground fruiting bodies. Studying truffles is inherently challenging due to their hidden nature. However, mycophagous mammals provide a unique opportunity to study hypogeous fungi because they rely on truffles as a food source. Although several truffle species have recently been described in the southern Appalachian region, their fruiting patterns remain poorly understood. To address this, we quantified truffle richness and spore loads from 670 Peromyscus scat samples collected across 42 sites spanning an environmental gradient during 2024 in the Blue Ridge Mountains of East Tennessee. We found that truffle richness and spore abundance …

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 …

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 …

School Leadership And Collaboration: A Case Study Of Leaders’ Experience Implementing Vertical Alignment Practices, Tara R. Wehmeyer

Electronic Theses and Dissertations

Changing student demographics within a large elementary school increased the need for collaboration between leadership and staff as they implemented a wide range of initiatives to support student learning. Grounded in the transformational leadership theoretical framework, this exploratory case study sought to systematically observe and gather knowledge about the experiences of campus leaders as they implement vertical alignment teams to foster a collaborative approach while instituting required initiatives. The sample included seven campus leadership team members and data collection utilized transcribed semistructured interviews, debriefing sessions after vertical alignment team meetings, meeting observations, and a researcher’s journal. All data were analyzed …

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, …

Trophic Ecology Of A South Carolina Estuarine Predator Guild, Shane John Molander

Electronic Theses and Dissertations

Estuaries are among the world’s most productive ecosystems in the world and are characterized by the convergence of two distinct habitats, creating a mosaic of environmental conditions from inland rivers to the nearshore ocean. Many fishes occupy estuaries during various life stages for growth, reproduction, or foraging, and may reside in them seasonally. The co-occurrence of species, particularly upper-trophic level carnivores, can result in competitive interactions for prey resources within a shared environment. Identifying the degree of these interactions as well as understanding basal energy consumption can inform food web dynamics and how overlapping species use shared spaces. I used …

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 …

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, …

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. …

Pushing Forward: The Dialectical Experiences Of Apida Psychologists In Predominantly White Counseling Settings, Shaun A. Fossett

Electronic Theses and Dissertations

Asian Pacific Islander Desi Americans (APIDAs) are the fastest growing racial group in the United States, yet they remain significantly underrepresented in the field of psychology and notably absent from research examining the professional experiences of racial and ethnic minority clinicians. Existing scholarship has documented the prevalence of racialized organizational structures, microaggressions, and the enduring “model minority” stereotype that both obscures and exacerbates APIDA challenges in professional environments. However, no known published studies have investigated the non–client-facing experiences of APIDA psychologists working in predominantly White counseling settings. The purpose of this interpretive phenomenological analysis (IPA) study was to explore how …

Field-Like- And Self-Spin-Orbit Torques In Magnetic Multilayer Films, Kyle Jeffrey Peterson

Electronic Theses and Dissertations

Spin-orbit torques (SOTs) have been realized as an energy efficient mechanism to manipulate and drive magnetization dynamics in magnetic multilayer films. Their damping-like and field-like components provide distinct pathways for controlling the magnetization, enabling switching, sustaining magneto-oscillations, and driving domain-wall motion with potential applications in nonvolatile memory, spin-based logic, and microwave signal generation. However, the accurate quantification and interpretation of these torques remains complicated by experimental sensitivity, the co-symmetry of the Oersted field and the effective field due to the field-like torque, and assumptions regarding the material layers from which the torques originate. The body of work set forth in …

Exploring Foundations Of Animal Host-Microbe Interactions In A Freshwater Sponge, Jacob S. Pawley

Electronic Theses and Dissertations

The most ancient eukaryotic immune defense mechanisms evolved in unicellular species. Multicellular eukaryotes, however, expanded these mechanisms to meet challenges unique to multicellular life, including barrier formation, long-distance cell signaling, and coordinated responses that eliminate microbial threats while minimizing damage to the host. As such, animal immune signaling pathways are exceptionally intricate and diverse. Though, most of what is understood about animal host–microbe interactions stems from a small handful of model systems. Here, I evaluate host–microbe interactions and innate immunity in sponges using the highly tractable freshwater sponge, Ephydatia muelleri. I report the discovery of an external host-derived matrix …

Protest, Police, Peace, And Violence: Understanding Variation In Police Violence At Protests, Louis Pascarella

Electronic Theses and Dissertations

Why do police engage in violence at some protests but not others? Existing research highlights the importance of protest characteristics, political context, police culture, organizational incentives, and interactions between protesters and law enforcement. While these factors help explain patterns of repression, they provide limited insight into why police responses can shift rapidly from restraint to widespread violence during the course of a protest event.

This dissertation examines variation in police violence during the 2020 George Floyd Uprising through a comparative analysis of protest events in Denver, Colorado and Seattle, Washington. Drawing on original event reconstructions based on livestreams, helicopter footage, …

Disrupted Family Ecosystems: Intergenerational Estrangement, Nonnormative Events, And Perceptions Of Established Adults – A Case Study, Seth Wyncott

Electronic Theses and Dissertations

The issue of intergenerational family estrangement has gained increased exposure in research and popular literature; however, significant gaps remain in understanding the lived experience of adult-children who maintain separation from their parents. Complicating matters, the family is not a solitary unit but is intertangled within a macrolevel sociocultural ecosystem. This ecosystem includes normative and nonnormative stressors which are subject to diverse interpretations depending on the historic and evolving character of the family and its members. As such, it is important to examine the dynamic character of estrangement in familial and sociocultural context.

Utilizing a case study method with semi-structured phenomenological …

Well-Being Beyond The Binary In Perinatal Healthcare: An Application Of Reproductive Justice, Orphea D. Wright

Electronic Theses and Dissertations

Gender diverse birthing individuals face several systemic barriers to accessing affirming and empowering perinatal healthcare. The present study utilizes the term gender diverse and the abbreviation TGE to describe those who self-identify as broadly non-cisgender, an umbrella term for people whose gender identity differs from their sex assigned at birth. Gender identities that may be included in this definition include transgender/trans, gender expansive, non-binary, gender fluid, gender nonconforming, gender variant, gender queer/queer, and/or agender. Gender diverse individuals face unique barriers in perinatal healthcare due to the pervasiveness of cisnormativity in perinatal healthcare spaces. Research has documented the harm caused to …

An Investigation Of Pelvic Kinematics And Implications For Total Hip Arthroplasty, Kathryn Holland Colone

Electronic Theses and Dissertations

Total hip arthroplasty (THA) is one of the most commonly performed orthopaedic procedures, with approximately 500,000 surgeries performed annually in the United States alone. Although THA is widely regarded as highly successful, postoperative complications persist, highlighting the multifactorial nature of THA outcomes. Previous studies have demonstrated the importance of implant positioning and soft tissue mechanics, yet challenges remain in optimizing surgical decisions on a patient-specific basis. Recent advances in surgical planning tools have shifted the focus of preoperative planning toward optimizing patient-specific outcomes, highlighting the need to better understand how patient anatomy, surgical technique, and joint mechanics interact to influence …

And There Was Battle In Heaven: Angels, Demons And Depictions Of Good And Evil In The Avesta And 1 Enoch, Christopher Brent Ghan

Electronic Theses and Dissertations

The Zoroastrian texts of the Avesta and the Second Temple era apocalyptic text of 1 Enoch represent two of the world’s most enduring and influential articulations of the concepts of good and evil forces in monotheistic religious contexts. This dissertation applies Bruce Lincoln’s theory of weak comparison to compare the depictions of good and evil intermediate beings – angels, fallen angels and Nephilim in 1 Enoch and yazatas and daevas in the Avesta – to explore how both of these corpuses use these beings to address questions of evil while maintaining their monotheistic natures, and to define and explore their …

Mystical Revelation And Knowledge Of God: Reclaiming Spirituality In Theology Through The Mystics, Elizabeth A. Merski

Electronic Theses and Dissertations

Since the scholastic era, the pursuit of God has occurred preeminently through reason, leading to an imbalanced theology of God that persists to the present day in the form of intellect-centered theology. As a resolution, this work proposes that the mobilization of private, mystical revelation as a source of legitimized theological knowledge of God has the potential to close the existent epistemological gap between reason/belief and theology/spirituality, demonstrating the integral unity between authentic knowledge of God and the receiver’s personal acceptance of God in faith. After examining the required methodological components for the discipline of theology and identifying criteria for …

Becoming A Therapist In A Foreign Land: Narratives Of International Trainee Clinicians Of Color In The U.S., Prathma Sharma

Electronic Theses and Dissertations

The focus of this dissertation project is on the community of trainee clinicians of color, who have been consistently overlooked in the literature on mental health. This dissertation employed narrative analysis as a methodological framework to explore the experiences of international trainee clinicians of color as they navigated the complex landscape of mental health training in the United States. In an increasingly globalized world, the voices and perspectives of these individuals offered critical insights into the challenges, triumphs, and unique pathways that shaped their professional development. Much of the literature on diversity and inclusion tends to individualize the challenging experiences, …

Development Of Minimalist Trifunctional Building Blocks For Chemical Biology Probe Synthesis, Luke E. Bohrer

Electronic Theses and Dissertations

The completion of the Human Genome Project in 2003 generated expectations that genomic information would accelerate the discovery of new protein drug targets and FDA-approved therapies. However, many small-molecule drug candidates continue to fail in clinical trials, and much of the human proteome remains undercharacterized in terms of structure, function, and disease relevance. Chemical tools are therefore essential for defining protein function, mapping protein interactions, and identifying disease-associated molecular mechanisms. Among these tools, small-molecule chemical probes provide a powerful strategy for connecting biological activity with target identification, functional analysis, and the development of effective therapies.

This dissertation describes the development …

Dialogic Communication Ethics As A Hopeful Response To Artificial Intelligence, Kristen Haldeman

Electronic Theses and Dissertations

Within the past five years, a new technology has dominated modern culture: artificial intelligence. With a multiplicity of ways to respond to this new environment, this dissertation situates a response to artificial intelligence by combining the media ecology and communication ethics perspectives. Media ecology explores historical roots and biases of technology to learn about their influence of humanity. A dialogic communication ethics seeks to find an opening for hope to emerge. Hope, grounded in the works of Jacques Ellul and the Christian tradition, offers a new rhetorical perspective by shifting focus away from technology and to our neighbor.

Race And Trauma: An Analysis Of Trauma Symptomology Across Diverse Youth Populations, Mara J. Niccoli

Electronic Theses and Dissertations

The adverse effects of trauma, particularly among youth who identify as Black, is a critical issue. This study investigated the relationship between race and trauma symptomology among children and adolescents who received weekly trauma therapy. With the use of clinical assessment data, this study sought to determine whether Black youth presented to treatment with higher trauma acuity than non-Black youth and if there were disparate outcomes in symptomology after treatment. The results indicated that on average, Black youth presented to treatment with lower trauma acuity than non-Black youth, and there were disparate outcomes in trauma symptomology between the two racial …

Between Care And Despair: An Existential Phenomenological Study Of Eco-Anxiety As Lived Experience, Conor H. Sukhdeo

Electronic Theses and Dissertations

This dissertation explores the lived experience of eco-anxiety among young adults aware of the ongoing ecological crisis but not directly exposed to climate-related disasters. Grounded in the human science tradition, ecopsychology, and existential phenomenology, this study employed Scott Churchill’s (2022) approach to Existential Phenomenological Research (EPR) to deepen our understanding of the phenomenon of eco-anxiety. Four participants, residing in Pittsburgh and aged 18-25, produced written experiential descriptions and participated in open-ended phenomenological interviews. As outlined by EPR, this data was analyzed through meaning unit delineation, imaginative variation, phenomenological reduction, and structural synthesis to produce individual situated structures of eco-anxiety for …

Experiences Of Novice Assistant Principals: Perceptual Evidence From Texas, Gregory Vidal

Electronic Theses and Dissertations

Assistant principals play essential roles in supporting instructional leadership and campus operations. However, limited research has examined how novice assistant principals experience their transition into administration and interpret their preparation and support. This study addressed the gap in understanding how novice assistant principals in a suburban Texas public school district made sense of their preservice preparation and early leadership practice, and how these experiences shaped their perceptions of training and organizational supports. The purpose of this qualitative, experiential, phenomenological study was to explore the lived experiences of novice assistant principals during their first three years in the role. The study …

Making Sense Of Generative Ai: A Qualitative Single Case Study Examining How College Students Describe Its Use In Academic Coursework, Hollie L. Reese

Electronic Theses and Dissertations

Generative artificial intelligence has become increasingly present in higher education, creating opportunities and challenges related to teaching, learning, academic integrity, and student preparation for future professional settings. The problem addressed in this study was the growing misalignment between students’ use of generative artificial intelligence tools and the guidance, expectations, and policies provided within college courses. The purpose of this qualitative case study was to explore how college students described their use of these tools in academic courses and to identify the benefits and challenges associated with integrating them into learning experiences. Data were collected through semistructured interviews with undergraduate students …

Weathering More Than Storms: Understanding The Mental Health Disparities Of Black Farmers In The Appalachian Region, Aliyah Smith

Electronic Theses and Dissertations

Black farmers in Appalachia represent a vital and historically marginalized population within one of America’s most economically distressed regions. Black farmers have endured generations of systemic racism, resulting in land loss, economic hardship, and mental stressors. This study examines the intersection of race, agriculture, and behavioral health to illustrate how structural barriers and cultural stigmas shape the mental well-being of Black farmers across Appalachia.

Findings from the analysis will guide the development of a conceptual model based on constructs from the Social-Ecological Model (SEM), Intersectionality Theory, and Critical Race Theory (CRT). This study will use Key Informant Interviews (KIIs) conducted …

Navigating The Dark Side: Emotional Labor's Impact On Hr Professionals' Wellness, Esmeralda Amelia Rendón

Electronic Theses and Dissertations

This qualitative descriptive study was designed to document and describe how female-identifying human resource (HR) generalist practitioners serving as sole or primary employee relations practitioners in small- to medium-sized organizations across the United States experience and manage emotional labor in their roles, cope with its demands, and how these experiences impact their wellness and perceptions of organizational support. Despite the centrality of emotional labor (EL) in human resource professionals’ (HRPs) roles, little was known about how HRPs in these underresourced environments cope with these demands. Data were collected through semistructured virtual interviews with eight participants and analyzed using Braun and …