Digital Commons Network^™

Leadership Experiences Of African American Women Vice Principals, Shakisha Mccray

Theses and Dissertations

This qualitative dissertation explores the lived experiences of African American women vice principals, an underrepresented group in educational leadership. There is a need to address the gap in scholarly research that disproportionately focuses on principals and European ethnicity. This study includes the voices and counter-stories of five African American women vice principals. Using critical race theory and Black feminist thought as theoretical frameworks, the study examines how race and gender influence their leadership experiences. Data was collected through interviews and analyzed to identify key themes. The research questions focus on how these vice principals describe their roles and responsibilities and …

High- Speed Wireless Interference Separation Based On Photonic Deep Learning Accelerators And Three-Dimensional Image Reconstruction For Medical Applications, Taichu Shi

Theses and Dissertations

This dissertation is centered on fast wideband interference management through advanced photonic signal processing and hybrid communication architectures. The core of this work is based on an optical pulse sampling technique proposed for photonic blind source separation (BSS) to recover wideband signals from their sub-Nyquist samples. With the use of ultra-short optical pulses to obtain statistically representative samples, this method retains important statistical properties of the signals while significantly reducing constraints imposed by analog to digital conversion and digital signal processing. Building on this foundation, we further apply the photonic BSS system within a hybrid free space optical (FSO) and …

The Tur Nout Effect: Challenging The Median Voter Theorem, George Thomas Rogers

Theses and Dissertations

The classical Median Voter Theorem (MVT) predicts that, in a two-party system with majority rule, candidates will converge toward the ideological center to capture the median voter. This logic, grounded in spatial models of political competition, assumes full voter participation and fails to account for the growing ideological polarization in modern democracies. This thesis reevaluates the MVT by incorporating probabilistic turnout into a utility-based model of voter behavior. It theorizes that turnout is shaped not only by ideological proximity but also by expressive motivations, including both strong affinity and strong aversion to candidates. A novel measure of turnout utility is …

Examining Coping, Individual Resilience, And Family Resilience As Strengths-Based Factors For Lgbtq+ Individuals, Elizabeth Moriarty Combs

Theses and Dissertations

Lesbian, Gay, Bisexual, Transgender, Queer/Questioning, and More (LGBTQ+) individuals are part of a diverse and complex community that has unique considerations regarding physical and mental health. While there is ongoing health equity research regarding LGBTQ+ individuals, the focus is often on health disparities. A strengths-based approach to helping LGBTQ+ individuals through research and other avenues may be beneficial. This multi-manuscript dissertation includes two studies that explored the current literature on strengths-based factors such as coping, individual resilience, and family resilience within LGBTQ+ individuals, as well as determined the feasibility of utilizing these factors to assist LGBTQ+ individuals with health and …

Action Research To Explore The Use Of Augmented Reality To Support High School Students In Understanding And Creating Art Work In A Drawing Course, Alicia Joanne Cobler

Theses and Dissertations

High school students in Drawing 1 at a high school in South Carolina struggle to understand meaning or make personal connections to their own artwork. The purpose of this action research was to evaluate the implementation of immersive reality technology, specifically augmented reality (AR), in art for high school Drawing 1 students to help them understand meaning in art and create their own meaningful artwork. Creating personally meaningful symbolic works of art is one of the first Visual Art National Core Standards (National Core Visual Art Standards, 2014). Creating meaning in artwork allows students to understand society, provide an opportunity …

William Hogarth's Portraiture: A Vehicle For Social Commentary, Kaitlyn Elizabeth Hoff

Theses and Dissertations

William Hogarth is often celebrated for the critiques of eighteenth-century England seen throughout his widely reproduced satirical print series and paintings, however his contributions to portraiture offer a compelling extension of his artistic vision and techniques. This research aims to explore Hogarth’s use of portraiture as a vehicle for social commentary and moral messaging, revealing broader themes of morality, nationalism, and identity among all of his works, comparing this approach to that of both his contemporaries and his own prints.

In examining Hogarth’s portraits alongside other formal portraiture, the socio-political landscape of the time, and existing scholarship, methods such as …

Electrocatalytic Degradation Of Methylene Blue Using Graphene Oxide, Antimony Oxide, And Graphene Oxide-Supported Antimony Oxide Ink-Based Electrodes, Maria Irene Myers Armas

Theses and Dissertations

This study investigates the electrocatalytic degradation of methylene blue (MB) using copper mesh electrodes coated with graphene oxide (GO), antimony oxide (Sb₂O₃), and their composite (GO/Sb₂O₃). These materials were evaluated across a pH range of 2 to 8 using sodium sulfate as the supporting electrolyte. UV-Vis spectroscopy at 665 nm confirmed dye degradation, with removal efficiencies reaching up to 95% at pH 2. However, degradation decreased at higher pH, with 40 – 60% removal at pH 8, depending on the electrode. Kinetic analyses revealed optimum performance under acidic conditions. GO/Sb₂O₃ electrodes demonstrated the most consistent and effective performance across all …

Investigating The Threshold Of Opa1-Mediated Mitochondrial Fusion In Shsy5y Cells, Jorge Alberto Elizondo

Theses and Dissertations

Mitochondrial dynamics occurring under stress-induced conditions in SHSY5Y neuroblastoma cells provide insight into the OPA1-mediated mitochondrial fusion threshold in cells of varying energetic demands. Mitochondria are dynamic structures that are continuously balancing fusion and fission, depending on cellular needs. The ability to fuse and divide relies on the maintenance of the mitochondrial transmembrane potential. Stress-induced conditions in SHSY5Y cells were induced via utilization of carbonyl cyanide m-chlorophenylhydrazone (CCCP), a protonophore that disrupts the transmembrane potential. OMA1 protein reacts to the loss of transmembrane potential and subsequently cleaves the fusion-active isoforms of OPA1, L-OPA1. This causes an accumulation of S-OPA1, the …

Foxo Factors’ Ability In Binding To And Inducing Tcf7 In Glioblastoma Cells, Stephanie Oyervides

Theses and Dissertations

Glioblastoma Multiforme (GBM) is an aggressive astrocytoma tumor type with a poor prognosis and limited immunotherapeutic options for those inflicted. Stem gene expression of this cancer indicates a direct relationship with the transcription factors, Forkhead box subfamily O (FOXO-1, -3 and - 4). These transcription factors are evolutionarily conserved, partially redundant. They are involved in diverse and fundamental biological processes such as cell survival, stem cell homeostasis, cell fate determination, cell cycle maintenance, metabolism, and apoptosis. Increasing evidence suggests interconnectivity between the WNT Pathway and FOXO transcription factors; however, the mechanism and full extent to which these interactions play a …

The Impact Of Students' Attendance On Their Academic Success: A Ypar Study, Quennella Smith

Theses and Dissertations

Youth participatory action research (YPAR) is a collaborative research approach that empowers students to examine issues affecting their lives and communities. This action research aimed to investigate the relationship between students’ attendance and academic success on middle school students, focusing specifically on eighth-grade students based on the theoretical framework of the critical race theory (CRT) in education and the self-determination theory (SDT). Three research questions were explored related to the impact of students’ attendance on their academic success: 1) What do students consider factors that lead to their poor attendance? 2) How do students feel they can be supported in …

The Mediating Role Of Gratifications In Gamified Ai Chatbot Engagement: Astimulus-Organism-Response Approach, Deukmook Bae

Theses and Dissertations

Recent technological advancements and evolving consumer preferences have prompted a substantial shift from live sport attendance to mediated sport consumption, particularly among younger audiences. In response, enhancing the quality of mediated sport experiences has become a strategic priority for sport marketers seeking to maintain consumer engagement and market relevance. Although second-screen usage has been introduced to support this transition, its effectiveness remains uncertain due to limited interactivity, lack of personalization, and the potential for user distraction.

To address these limitations, AI chatbots have emerged as a compelling alternative, offering adaptive, user-centered interactions that promote deeper engagement and enrich the mediated …

An Investigation Of Preservice And Novice Elementary Education Graduate Students’ Self-Efficacy Toward Teaching Engineering Design, Victoria Harkins Cameron

Theses and Dissertations

This mixed-methods action research study examined how an experiential learning–based pedagogical approach influenced the development of teaching engineering self-efficacy in preservice and novice elementary education graduate students. Grounded in Bandura’s self-efficacy theory and Kolb’s experiential learning cycle, the study examined the impact of mastery experiences, vicarious experiences, verbal persuasion, and affective states on shaping participants’ instructional self-efficacy. Data were collected using the Teaching Engineering Self-Efficacy Scale (TESS), written reflections, and a focus group. Engineering pedagogical content knowledge was the only TESS construct to show statistically significant gains, while qualitative findings indicated broader growth in self-efficacy and emotional readiness. The study’s …

The Effect Of An Interdisciplinary Project On Students’ Understandings Of Mathematical Interdisciplinarity: A Qualitative Action Research Study, Jaime Krause

Theses and Dissertations

The siloed nature of education has likely caused some high school students to not recognize the interdisciplinary nature of mathematics, leading them to misunderstand its relationship to other subject areas. A misunderstanding of mathematical interdisciplinarity can cause issues when these students approach interdisciplinary problems later in life. The purpose of this study was to observe, investigate, and analyze the ways in which students understand mathematical interdisciplinarity following a collaborative and interdisciplinary project. I implemented a descriptive qualitative action research approach to determine how a collaborative interdisciplinary project on NASA technology in a high school mathematics course affects students’ understandings of …

The Impact Of The Flipped Learning Approach On Student Engagement In A High School Chemistry Classroom, Alana Lyn Hicks

Theses and Dissertations

This mixed-methods action research study investigated the impact of the flipped classroom approach on student engagement and attitudes within a science classroom. Data was collected using student-reported responses on the Classroom Engagement Inventory, Motivated Strategies for Learning Questionnaire, student journal entries, teacher reflective journals, and an observation tracking chart kept by the classroom teacher. Findings revealed that the flipped classroom model significantly increased affective and cognitive engagement among students in a larger class size, as well as for medium-achieving students and girls. These results suggest that while the flipped classroom has the potential to enhance engagement, its effectiveness is influenced …

Professional Learning Communities And Digital Literacy: A Framework For Elementary Education, Lauren Hunt

Theses and Dissertations

As digital technologies redefine the definition of literacy, elementary teachers face the challenge of effectively integrating digital literacies into their classroom spaces. This dissertation examines how professional development can enhance teachers’ understanding and implementation of high-quality digital literacy practices. Grounded in the New Literacies framework, the study identifies key characteristics of effective digital literacy instruction and explores how professional development that is contextualized, meaningful, and sustained can foster these practices. Using data from classroom observations, professional learning communities, and teacher interviews, the research highlights how individualized coaching and collaboration empower teachers to create authentic, engaging, and critical digital literacy experiences. …

Assessing Health And Academic Disparities In The Deep South: The Enduring Impact Of Segregation And Redlining In Georgia, Bridget Hamilton

Theses and Dissertations

Background: Within the American South, marginalized Black populations continue to suffer from health disparities. A key resource that could aid in the prevention of health disparities such as teen pregnancy is the school nurse. School nurses are well positioned to assist in the development of independent health maintenance among student populations. However, school nurses remain understaffed and underfunded throughout most of the United States, which limits their effectiveness. It is possible that within southern states there are inequities in how school resources are allocated that have ties to segregation and redlining practices that systemically marginalized Black populations throughout the 1900s. …

Enhancing Self-Efficacy In Ap Psychology Through Targeted Intervention Strategies, Felicia Jennifer Butler

Theses and Dissertations

The purpose of this mixed-method action research case study was to measure the effects of an individualized intervention on academic self-efficacy and academic achievement in an Advanced Placement (AP) psychology class. The study focused on four students who received a failing grade on the first unit test and took place over an eight-week period. Quantitative data was collected in the form of assessment data (both formative and summative), survey questions modeled after the General Academic Self-Efficacy Scale (GASE), and assignment completion. Qualitative data was collected in the form of semi-structured interviews and open-ended reflection questions. The findings suggest that psychology …

Effects Of Science Of Reading Pedagogy On Student Self-Efficacy In The Elementary Intervention Classroom, Emily Marie Robinette

Theses and Dissertations

This action research study investigated the effects Science of Reading pedagogy and curriculum have on students’ reading self-efficacy within the setting of the elementary intervention classroom. The theoretical framework, Albert Bandura’s self-efficacy theory, guided the study’s research questions, review of literature, methodology, and data analysis. The conceptual framework of the Science of Reading theory and educational movement served as the primary source of design and implementation of the intervention. Students participated in pre-, mid-, and post intervention interviews which measured students’ perceptions about their reading self-efficacy throughout the intervention period. They also participated in weekly reading self-efficacy questionnaires, which provided …

Separate But Not Equal: A Sequential Explanatory Mixed Methods Study Of Adjunct Structural Empowerment, Experiences, And Perceived Needs In A Midwestern Community College, Shauna Sowga

Theses and Dissertations

Higher education institutions are increasingly reliant on contingent or gig-based labor in the form of adjunct faculty. Adjunct faculty make up the majority of community college faculty, yet they tend to receive the least support, resources, and training investments from colleges. This is no different at Metro Community College, a large, urban college in the Midwest. The problem of practice for this study revolves around Metro Community College social sciences adjunct faculty’s needs for support, resources, and training to do their jobs effectively. This sequential explanatory mixed methods study examined these adjuncts’ structural empowerment, experiences, and perceived needs for support …

Lessons In Game Use: Examining Engagement And Content Knowledge With The Use Of Digital Game-Based Learning Lessons In Biology, Rebecca Anne Valencia

Theses and Dissertations

According to both national and local data, students in high school biology classes are disengaged in content learning and do not demonstrate sufficient understanding of the content taught during units focused on the mechanisms of heredity and gene expression. Traditional teaching methods do not hold their interest which leads to disengagement and missed learning opportunities. The purpose of this action research was to evaluate the effect of digital game-based learning lessons on biology 1 students’ engagement and content knowledge application regarding the mechanisms of heredity and gene expression, as well as on the students’ perceptions of their digital game-based learning …

Unveiling Injustices In Theodore Dreiser's “An American Tragedy” And Susan Glaspell's “A Jury Of Her Peers”, Athena Maria Dotsikas

Theses and Dissertations

Crime and its representation in new age media is seeping into every avenue of discussion nowadays. The influence of crime is most notably evident in literature, where real cases inspired fictional novels and short stories that explore social issues and injustices. Since the 16th century, true crime has captivated human curiosity while also shedding light on the United States legal and justice system. Ultimately, true crime narratives provide a deeper understanding of human psychology and the reasons behind a number of gruesome and horrific incidents. This thesis investigates how Theodore Dreiser’s An American Tragedy and Susan Glaspell’s A Jury of …

Impact Of Participation In Extracurricular Activities On Female Students’ Motivation, Noha Ibrahim

Theses and Dissertations

This study investigated the impact of extracurricular activities (ECAs) on academic motivation among female high school students at a semi-governmental international school in the UAE. It addressed three research questions: (1) the effect of ECA participation on academic motivation, (2) students’ perceptions of how these activities influence their motivation, and (3) teachers’ perspectives on their impact. I conducted this action research in a school of 4,500 K-12 students predominantly local and from high-income backgrounds with an international teaching staff. Participants included grade 11 and 12 female students (ages 16–18) enrolled in one of four clubs (Reading, International, Sports, and Art) …

Cultivating Smiles On The Frontier: The Making Of Brazil’S Soybean Capital And Community Building In Sorriso, 1980-2020, Nathalia Francio Cocenza

Theses and Dissertations

This dissertation explores the transformation of Sorriso, a small municipality in Mato Grosso, Brazil, into one of the world's leading soybean producers, placing its local history within the broader context of global agricultural and economic shifts from 1980 to 2020. Sorriso represents the unique convergence of local, regional, and international forces that reshaped Brazil's agricultural landscape. This study critically examines the political, environmental, and social dynamics that positioned Sorriso at the forefront of soybean production, illuminating the town's transition from a remote frontier settlement to a global agribusiness hub.

Through a detailed analysis of previously unstudied archival sources, interviews with …

The Digital Forum: A Pedagogical Approach To Teaching College English Composition, Thomas Edward Plichta

Theses and Dissertations

This action research study focused on the identification of ways to improve the curriculum of freshman Writing Intensive Seminars using an innovative multimodal pedagogical methodology, the Digital Forum, in addition to formal papers and in-class writing. The research examined a Writing Intensive Seminar with approximately 20 students; There were two Research Questions for the present study. RQ1: How does the incorporation of the Digital Forum as a pedagogical approach in college freshman writing classes influence students' levels of behavioral, cognitive, and emotional engagement? RQ2: How does the incorporation of Digital Forums in freshman English Composition courses affect the quality of …

Structure-Activity Relationships Of Isothiourea And Silicon Phthalocyanine Catalysts, Christian J. Harrison

Theses and Dissertations

Efficient organic synthesis often relies on improving catalyst designs and investigating reaction mechanisms to accomplish feats such as high stereoselectivity, low catalyst loadings, and performing sustainable chemistry. Within the field of organocatalysis, intermolecular interactions between a catalyst and a substrate are a large contributing factor to the control of a reaction, including rate and selectivity. Investigating mechanisms can provide information on the type of intermolecular interactions occurring in the reaction, aiding future reaction and catalyst development. This dissertation will explore two recent projects and how probing intermolecular interactions through simple modifications provides information useful for new catalyst designs and properties. …

Characteristics Of Individuals Who Desired A Mentor But Did Not Have One: A Nationally Representative Study, Kenzie Delposen

Theses and Dissertations

Youth are experiencing increased mental health challenges due to the parallel increase in loneliness and social isolation. Mentorship has emerged as a potential solution to reduce social isolation and provide support, guidance, and encouragement to young people. The context of the mentoring relationship positively impacts adolescent lives by promoting a safe, stable, nurturing relationship (SSNR) to reinforce the intrinsic motivation to connect with others. However, many young people lack these relationships despite indicating that there were times when they wanted one (Garringer & Banning, 2023). Access to mentorship is influenced by factors such as racial or ethnic background, socioeconomic status …

Camp In The Kitchen: Feminism And Craft In Liza Lou's Beaded Worlds, Aurora X. Bell

Theses and Dissertations

Kitchen (1991–96) was the first major work of art by American artist Liza Lou. It is an installation of a life-size kitchen in which every surface and object is covered in glass beads. Kitchen, which Lou refers to as a monument to women’s unsung domestic labor, received considerable critical attention and drew the artist into ongoing conversations around the relationship between “fine art” and “craft” and about the role of feminism in the art of the 1990s. In contemporary interviews, however, Lou expressed discomfort with the label of “craft” as well as with feminist art that she considered “didactic.” …

Promoting The Mathematical Success Of High School Geometry Students Through Project-Based Learning, Amanda Shankle-Erdman

Theses and Dissertations

This action research study explores the impact of project-based learning (PBL) on the mathematical success of high school geometry students, particularly those from low socioeconomic backgrounds. Students from low SES households often face challenges in acquiring foundational math skills, which in turn leads to low math-related self-efficacy and poor academic performance. The study aimed to determine whether implementing PBL enhances students' understanding of geometry, improves students’ math-related self-efficacy and anxiety, and changes students’ attitude toward math by creating real-world connections to their lived experiences. Using a convergent mixed-methods approach, the study collected both qualitative and quantitative data from high school …

Characterizing Dissolved Organic Matter Composition In A Southeastern United States Watershed, Gwendolyn Marcelette Hopper

Theses and Dissertations

Dissolved organic matter (DOM) has important roles in many biogeochemical cycles. DOM is primarily composed of dissolved organic carbon (DOC), nitrogen, and phosphorus, and the processing of DOM is important for nutrient regulation and carbon cycling. In the coastal plains of the southeastern United States, there are many rivers and streams known as “blackwaters” with exceptionally high concentrations of chromophoric dissolved organic matter (CDOM) leached from terrestrial soils, coinciding with a region experiencing some of the nation’s highest rates of development. As changes in land use and climate continue to occur, DOM composition from natural to anthropogenically impacted systems can …

Multi-Dimensional Strategies Impacting Beginning Readers’ Word Solving And Engagement, Brooke Clayton

Theses and Dissertations

This dissertation studied the impact of reading instruction on beginner-level readers’ decoding skills and engagement among four first-grade students in Lexington, South Carolina. The following research question directed the study:

Will an instructional strategy foregrounded on direct, systematic phonics instruction in conjunction with multi-dimensional reading strategies improve beginner readers’ decoding skills and engagement?

The study is grounded in several theoretical frameworks, including Scarborough’s Reading Rope (Appendix A), the Simple View of Reading, the Active View of Reading (Appendix C), Onset-Rime phonics instruction, and Self-Determination Theory. Interventions included the LETRS Science of Reading Phonics Small Group Plan (Moats & Tolman, 2019) …