Digital Commons Network^™

Implementing Hypertension Guidelines Into Clinical Practice, Misti Michele Mays

Electronic Theses and Dissertations

Hypertension is a complex chronic disease process, and it is essential to educate the patient on the disease process, as well as on all aspects of self-management. It is essential that providers choose an evidence-based guideline by which they will manage their hypertensive patients. In addition, providers must schedule regular follow-up appointments with their patients, along with a wide variety of other multifactorial components in regard to the management of patients diagnosed with hypertension. In addition, providers have a responsibility to stay informed on new approaches to blood pressure management by reviewing the professional literature on a regular basis. Much …

Leading The Charge: A Qualitative Descriptive Study Exploring How Public Middle School Principals Perceive And Enact Their Role As Advocates For School-Based Mental Health, Tanya Irby Tucker

Electronic Theses and Dissertations

Adolescent mental health concerns have increased significantly during the middle school years, requiring school leaders to expand their role in supporting students’ social, emotional, and psychological well-being. Although schools are uniquely positioned to deliver comprehensive mental health services, how public middle school principals perceive and enact their role as advocates for school-based mental health services remains underexplored. The purpose of this qualitative descriptive study was to explore how public middle school principals perceive and enact their role as advocates for school-based mental health services. Guided by social cognitive theory (SCT), this study examined how personal beliefs, behavioral practices, and environmental …

Architecture As Frozen Music: An Original Wind Ensemble Work Exploring Architectural Metaphors In Contemporary Music, Leighannah J. Turner

Electronic Theses and Dissertations

Architecture has long served as a source of inspiration for Western art music composers from the Early Renaissance through the Neoclassical period. While the relationship between music and architecture has been widely studied, much of the existing research focuses on traditional mediums such as the symphony orchestra. This project explores the concept of music as “frozen architecture” – introduced by Friedrich Schelling – and the metaphorical correlations as described by Vitruvius and Lupishko, applying these concepts to the contemporary medium of the wind ensemble through my original composition. My work integrates the architectural principles proposed by Vitruvius and Lupishko while …

Rooted Or Restless: Retaining Teachers From Urban And Suburban Backgrounds In Rural Texas, Martha Saucedo Ms.

Electronic Theses and Dissertations

Rural school districts across the United States continue to experience persistent challenges in retaining teachers, particularly those from urban and suburban backgrounds who transition into geographically isolated rural communities. These educators often encounter professional isolation, cultural adjustment, and limited access to resources, which influence their long-term commitment to rural schools. The purpose of this qualitative case study was to explore how teachers from urban and suburban backgrounds experienced geographical and professional isolation in rural schools within a Texas Education Service Center region in a rural area and how leadership practices influenced their sense of belonging, place attachment, and retention. This …

Transformative Leadership In Action: A Narrative Study Of Principals’ Influence On Students’ Achievement, Staci Taylor Fullmighter

Electronic Theses and Dissertations

This narrative inquiry examined how principals in low-performing high-minority urban schools use transformational leadership to improve academic outcomes. The purpose of this research was to describe principals’ leadership behaviors that are perceived to positively influence academic achievement among students who identify as minority and low socioeconomic status and are attending or have attended urban school districts with high concentrations of the identified population. Data were collected through semistructured interviews with principals, and narratives were studied to identify trends across their experiences. Four themes emerged: (a) trust and shared accountability, (b) encouraging creativity and risk-taking, (c) communicating shared goals, and (d) …

African American Male Dual Enrollment Graduates Perceptions Of The Transition To The 4-Year University, Kendra L. Harrison

Electronic Theses and Dissertations

The purpose of this qualitative exploratory case study was to explore how African American men who earned an associate degree from dual enrollment programs in Texas perceive the transition to a 4-year university to pursue a bachelor’s degree. The 4S model of Schlossberg’s transition theory was the conceptual framework that undergirded the study. Purposive sampling was used to recruit 20 participants. The researcher collected and triangulated data using a questionnaire and semistructured interviews and analyzed it using six-step thematic analysis. Results revealed competence and confidence from dual enrollment program resulted in a smooth transition to college, participants’ African American male …

The First 3 Years: Novice Teacher Perspectives On Staying In Education, Tammy M. Allen

Electronic Theses and Dissertations

Teacher attrition presents a persistent challenge for educational systems, with novice teachers leaving the profession at disproportionately high rates during their first 5 years. Rural schools face compounded difficulties in recruiting and retaining qualified educators due to geographic isolation, limited resources, and additional workload demands. The purpose of this qualitative study was to investigate novice secondary teachers’ perceptions of factors influencing their intent to remain in education. In this study, self-determination theory, which examines autonomy, competence, and relatedness as psychological needs supporting intrinsic motivation, and four capital theory, which addresses human, social, structural, and positive psychological capital as interconnected components …

Addressing The Problems Of Data Variations, Quality, And Scarcity In Training Deep Neural Networks, Jian Sun

Electronic Theses and Dissertations

The performance of deep neural networks (DNNs) is strongly influenced by the characteristics and quality of the underlying datasets. This Ph.D. dissertation addresses three pervasive data challenges-imbalance, quality degradation, and scarcity-that commonly hinder the effectiveness of DNNs in computer vision (CV) and natural language processing (NLP) applications.

Class imbalance remains one of the most frequent causes of degraded model generalization. While Focal Loss effectively mitigates inter-class imbalance by assigning higher weights to minority classes, it struggles with intra-class imbalance, particularly in video datasets where longer clips dominate feature representation. To address this, I implement and utilize …

Contribution Of G4 Structure To Alzheimer’S Disease And Tau Pathology, Lena Michaela Kallweit

Electronic Theses and Dissertations

The occurrence of Alzheimer’s Disease (AD) is rapidly increasing as our global population ages. With the majority of therapeutic drugs in the last couple of decades failing clinical trials, new molecular targets are needed to combat the expected influx of new AD cases. AD pathogenesis is associated with abnormal protein aggregation, characterized in part by intracellular accumulation of hyperphosphorylated tau (p-tau) in neurofibrillary tangles (NFTs). RNA has been identified as a major non-proteinaceous component of NFTs and has been implicated as an active cofactor in tau aggregation and spread. Recent work has shown that aggregates from AD brains contain almost …

Critical Roles And Critical Rolls: A Frame-Analytical Perspective Of Self-Making, Safe Spaces, And Worldbuilding In Tabletop Role-Playing Games, Cal Quayle

Electronic Theses and Dissertations

Many gamers prefer to play tabletop roleplaying games, or TTRPGs, in order to a) join a community, and b) tell a story collaboratively with friends and acquaintances. This thesis discusses selfhood-making, safe spaces, and allegory in imaginary worlds from the perspective of Erving Goff man’s frame analysis. It relies on a theoretical framework of imagined communities, the magic circle, and subcreation. This research culminated in the understanding that people play TTRPGs for a variety of reasons - collaborative storytelling and exercising critical thinking skills, but respondents overwhelmingly reported that they enjoyed the ability to socialize with friends and strangers, and …

Bridging Professional Development Gaps In Pacrao Through Gamification, Chad Everett Saunders

Electronic Theses and Dissertations

This study examined the extent to which a gamified professional development platform can foster skill development, knowledge application, and engagement among members of the Pacific Association of Collegiate Registrars and Admissions Officers (PACRAO). Grounded in the principles of humanism (Rogers, 1969) and andragogy (Knowles, 1990), and operationalized through gamification (Kapp, 2012), this study evaluated whether game-based mechanics aligned with adult learners’ professional development needs within a geographically dispersed regional association. To address these constraints, a prototype gamified platform, PACRAO University, was developed to provide a flexible, self-paced, and contextually relevant learning environment. Using a quantitative, within-subjects repeated measures design, …

Problematizing The Critical Dimensions Of Whiteness With Educational Leaders, Lerita Yvette Cavness

Electronic Theses and Dissertations

This action research examines whether and how whiteness is “weaponized” by a P-12 educational leader, the impact whiteness has on their identities, and whether engagement with Critical Whiteness Studies (CWS) will increase pro-equity behaviors. The research employs a layered mixed-methods approach, and a deductive analysis triangulation plan framed by the Critical Dimensions of Whiteness Model (CDWM). This N-of-1 case study included a four-phase intervention workshop series and one post interview. The findings identify how one educational leader engaged in the selfweaponization of whiteness. The findings identify that CWS supported by the CDWM is a disruptive but healing path to awareness …

Exploring The Lived Experiences Of Black Women In Undergraduate Stem Core Expansion Pathways, Lizzie L. Evans Martinez Alvarez

Electronic Theses and Dissertations

The use of social incongruence in the film Hidden Figures, which juxtaposed with STEM education as the most powerful in contrast with Black women as the least powerful, supported the argument for the specific problem of practice to examine the unmet need for socially and ethnically diverse student populations in U.S. STEM higher education and careers. The purpose of this hermeneutic phenomenological research study was to identify and analyze the lived experiences of Black women regarding barriers they perceive in the STEM educational and career decision-making processes, while exploring transformational pathways to STEM academic success. The study specifically analyzed …

Exploring The Personal Management Interview Program As A Burnout Prevention Strategy In Policing: A Qualitative Case Study, Lance C. Arnold

Electronic Theses and Dissertations

Police officers in the United States experience severe burnout at rates exceeding other service professions, with approximately 75% experiencing burnout symptoms. Current interventions predominantly focus on individual coping mechanisms rather than addressing organizational and leadership factors contributing to burnout. This qualitative single-case study explored the perceptions and experiences of police leaders and officers concerning the utility of a personal management interview program to foster positive leadership behaviors as a resource-oriented preventive strategy against burnout in a midsize municipal police department in Texas. The study employed semistructured virtual interviews with eight participants: four police leaders and four police officers who had …

The Influence Of Community Engagement On Educator Job Satisfaction And School Culture In K–5 Schools: A Multicase Study, Hailee Jo Fojtasek

Electronic Theses and Dissertations

This qualitative multicase study examined how school leaders and educators perceived the

influence of community engagement, particularly volunteerism, on campus culture and teacher

job satisfaction in K–5 schools in the North Texas region. Continuous teacher attrition and

weakening campus morale have resulted in increased attention to leadership strategies that

support retention. However, the role community engagement has in supporting educators has

been underexplored. The purpose of this study was to investigate how educators and

administrators experienced and interpreted community engagement efforts on their campus and

how those efforts shaped school culture and teacher job satisfaction. Guided by social capital

theory, …

Texas Secondary Spanish Teachers’ Perceptions Of Factors Influencing Instructional Self- Efficacy, Satisfaction, And Effectiveness, Tana Verlane Palafox

Electronic Theses and Dissertations

Ongoing shortages of certified world language teachers and declining enrollment in secondary language programs have intensified concerns about teacher burnout, professional isolation, and instructional quality. Research has indicated that collaboration, targeted professional development, and supportive leadership influence teachers’ instructional self-efficacy, job satisfaction, and instructional effectiveness. However, limited research has examined how secondary Spanish teachers in Texas experience these issues. This qualitative collective case study explored how Texas secondary school Spanish teachers perceive the impact of their professional experiences on instructional self-efficacy, job satisfaction, and instructional effectiveness. Grounded in Bandura’s social cognitive theory and Vygotsky’s social constructivism, the study examined how …

A Narrative Study On The Resilience Of Women In Technology Careers, Gina J. Baldridge

Electronic Theses and Dissertations

In spite of the promotion of science, technology, engineering, and mathematics (STEM) education and careers, there is a lack of women entering the STEM workforce and majoring in STEM subjects. Women can experience gender bias and workplace marginalization in STEM careers, but have learned coping strategies that have contributed to their technology career resilience. The purpose of this narrative qualitative study was to explore how women working as individual performers and leaders in technology companies told their career stories of resilience through the perspective of change acceptance, confidence, and communication, three factors in Kumar’s CR8 model of resilience. The model …

Women Working Well: The Experiences Of Black Women Nonprofit Leaders In The Tristate Area, Erika K. Stanley Wesley

Electronic Theses and Dissertations

This qualitative narrative inquiry study examined the lived experiences, challenges, and leadership practices of Black women nonprofit leaders in the northeastern United States. Guided by Black feminist thought and positive leadership theory, the study explored how participants’ identities informed leadership enactment and how positive leadership practices influenced organizational impact and change. Data were collected through semistructured interviews with 11 Black women nonprofit leaders and analyzed using thematic analysis to identify patterns across participant narratives. Findings aligned with four research questions. Participants described unique experiences characterized by identity as power, cultural bridge-building, and the weight of representation. Key challenges included funding …

Intersecting Identities: The Leadership Journeys And Challenges Of Black Women Senior Leaders In Southern U.S. Predominantly White Institutions, Quizanae' Yvonne Cooper

Electronic Theses and Dissertations

This study looked at what Black women in high‑level leadership roles are experiencing at predominantly White institutions in Texas and Florida now that diversity, equity, and inclusion (DEI) policies have been rolled back. Using Black feminist theory and intersectionality as the foundation, the research focused on how race and gender shape their leadership, their decision‑making, and the ways they navigate their careers. Through in‑depth interviews with 10 Black women in executive positions, the study uses a narrative approach to understand their stories. Eight major themes emerged, and many participants explained that losing DEI initiatives created new obstacles, reduced support systems, …

Work Environments Matter: The Impacts Of Interpersonal Relationships On Student Affairs Professionals, Lawrence R. Daniel

Electronic Theses and Dissertations

This qualitative study examined how everyday workplace relationships influence engagement, professional identity, and retention among student affairs professionals in higher education. Guided by relational leadership theory, the study explored how leadership is experienced not only through formal position or authority, but also through relational presence, psychological safety, and advocacy. Seventeen student affairs professionals representing diverse institutional types, geographic regions, and career stages participated in in-depth semistructured interviews. Data were analyzed using reflexive thematic analysis and incorporated both in vivo and line-by-line coding to ensure that findings remained grounded in participants’ voices and lived experiences. Nine themes emerged from the analysis. …

Building Beyond The Classroom: A Qualitative Case Study On Enduring School-Community Partnerships In Deep East Texas, Christa Lacey

Electronic Theses and Dissertations

Schools across the United States face increasing challenges related to student achievement, equity, and engagement that extend beyond the classroom. School–community partnerships are frequently used to expand support systems for students; however, many collaborations remain short-lived or fragmented. The purpose of this qualitative collective case study was to explore the characteristics and conditions that contribute to successful and enduring school–community partnerships between public schools and the Boys & Girls Clubs of America (BGCA) in the Educational Service Center Region 7 of Texas. Guided by Social Capital Theory, Epstein’s Overlapping Spheres of Influence, and Distributed Leadership, this study examined how campus …

New Teacher Attrition Rate In Relation To Lack Of Administrative Support, Amy Avina

Electronic Theses and Dissertations

The purpose of this qualitative study was to examine new teacher attrition in relation to perceived administrative support. Teacher attrition remains a persistent challenge in U.S. public education, particularly among novice teachers within their first 5 years of service. High turnover rates negatively affect school stability, instructional continuity, and student achievement, underscoring the need to better understand factors influencing teachers’ decisions to remain in or leave the profession. The problem addressed in this study was the limited understanding of how novice teachers perceive administrative support and how these perceptions influence their willingness to stay in the teaching profession. The researcher …

Leader Rounding For Outcomes To Improve Employee Retention, Laura R. Escobar

Electronic Theses and Dissertations

Intention to leave a nursing staff position, if not addressed, may lead to an increased rate of nursing turnover. High turnover rates can negatively affect staffing patterns, increase organizational costs, and disrupt the continuity of patient care. A quantitative quasi-experimental pre-/posttest design was used to evaluate the impact of the High Reliability Organization Leader Rounding for Outcomes tool to reduce the intent-to-leave scores, as measured by the Turnover Intention Scale (TIS-6), compared to current practice over 12 weeks. Implementation of the tool provided a structured leader rounding process designed to strengthen communication, recognize staff contributions, and proactively identify workplace concerns. …

Longevity, Resilience, And Thriving Of Women In Ministry: A Case Study Of Women In Ministry From A United Pentecostal Holiness Church, Eunice Cheryl Feltus Little

Electronic Theses and Dissertations

Abstract

The problem of ministry attrition caused by burnout is well documented. Research attributes the impact of burnout on the resilience, longevity, and thriving of ministry workers to role-related stress and adversity. High attrition rates throughout religious organizations and a lag in longevity and resilience contribute to a shortage of ministry workers. Some ministry workers leave the vocation because of stress and burnout, yet others persevere. Despite the possible adverse effects, many men and women find a sense of well-being and joy in ministry work. This qualitative distributive case study focused on those who stayed in ministry and the strategies …

Impact Of The Lace Index Scoring Tool On Sepsis Readmissions, Tabitha M. Keaty Sheppard

Electronic Theses and Dissertations

Sepsis is a life-threatening medical emergency that negatively affects patients and healthcare organizations worldwide. Consequently, sepsis survivors are presented with even greater health risks following acute hospitalizations, and the financial implications on healthcare organizations increase with each patient readmission. This quality improvement project studied the impact of the LACE Index Scoring Tool on sepsis readmissions within a single healthcare organization in the southern region of the United States. Per quality metric data, sepsis readmissions have remained a prevalent issue at the project site. The purpose of this doctoral project was to reduce 30-day sepsis readmissions following the implementation of the …

Patient Wait Time And Throughput Interventions In The Cardiology Outpatient Setting, Chioma Ohiri Tawose

Electronic Theses and Dissertations

Healthcare collaboration and patient care require effective communication. Poor communication impacts wait time. Inadequate communication in the outpatient cardiology clinic can lead to disruptive patient throughput, or workflow, and extend patient length of visit. The purpose of this project was to implement a means of communication for clinicians and healthcare assistants to improve patient flow and cut down idleness, ultimately reducing patient wait time. The project established the incorporation of a built-in electronic health record communication notification system, the Event Button, for asynchronous communication between staff. A quantitative quality improvement design was used to conduct this project. Inferential and descriptive …

A Taxonomy-Driven Modular Defense Against Non-Canonical Language In Vision-Language-Action Models, Viraj Samson

Electronic Theses and Dissertations

Vision-Language-Action (VLA) models have recently achieved strong performance across manipulation benchmarks, but these benchmarks rely on highly templated instructions on which the models are typically fine-tuned, leaving their behavior under realistic language-side perturbation unclear. It remains an open question whether the linguistic flexibility inherited from vision-language pretraining survives this fine-tuning, or whether the resulting policies become narrowly tuned to benchmark phrasing and brittle to the intent-preserving language variation that real users naturally produce. We address this gap with a systematic study of VLA robustness under non-canonical instructions, comprising three components: a structured taxonomy of intent-preserving variations spanning linguistic, orthographic, and …

The Monstrosity Of “Deor”: Apophasis In Character And Form, Ada Smith

Electronic Theses and Dissertations

T. A. Shippey once referred to “Deor” as “that most perfect of Old English poems.” And indeed, the poem cannot help but inspire the reader to deep contemplation, even as it baffles scholars in so many ways. From its rare stanzaic structure to its anomalous refrain—“þæs ofer eode þisses swa mæg”—the elegy has inspired much debate within the scholarship. In fact, one of the few agreements among the scholars of “Deor” is the poem’s capacity to undermine all interpretations. The poem has the remarkable quality of mentioning many well-known legendary and historical figures while, at the same time, denying the …

Assessing The Impact Of Local–State Revenue Shares And Property Tax Structure On Effective Farmland Tax Rates: Panel Evidence From Seven Midwestern States, 2009–2022, Imtiaz Amin Chy

Electronic Theses and Dissertations

Property taxes are the primary revenue instrument of local governments in the United States, yet the burdens they impose are distributed unevenly. Farmland, because it cannot be relocated, often absorbs a disproportionate share. This paper examines two related questions: what fiscal factors determine how heavily agricultural land is taxed, and do those tax rates capitalize into farmland asset values? Using an annual panel of Iowa, Illinois, Indiana, Kansas, Minnesota, Nebraska, and Wisconsin from 2009 to 2022, we first document how each state allocates property tax revenue across four major spending categories (education, public welfare, health, and utilities) finding that all …

Data-Driven Optimization Of Memory Effects And Critical Components In Cascading Failure Interaction Networks, Md Farhan Tanvir

Electronic Theses and Dissertations

Cascading failures are a major concern for modern power systems‚ where a small failure can cascade through the network to create a large blackout. Because such an event could have catastrophic economic and social costs it is important to understand cascading failures‚ how to model them‚ and the possibility of reducing them. In this thesis‚ we develop a data-driven framework based on actual utility outage data to model and reduce cascading failures. The proposed methodology is based on generation-dependent interaction models and in this study interaction matrices obtained from historical outage events are used to describe the interaction between generations. …