Digital Commons Network^™

Exploring The Effects Of Polymer-Graphene Interactions On Bulk Composite Properties Using Finite Element Analysis, Bryant Grove

Dissertations

As a filler in high performance materials, graphene significantly enhances the mechanical properties of polymer composites. Experimental characterization of graphene composite enhancements is limited by labor-intensive processes in both synthesizing composites for different purposes and in characterizing the interactions between graphene and polymer composites that lead to these enhancements. Computational approaches such as finite element analysis (FEA) are suitable alternatives that go beyond experimental analysis. This dissertation demonstrates the utility of FEA in analyzing polymer graphene composites with an emphasis on modeling the interaction between graphene fillers and the matrix within the interphase formed between them. The accessible design framework …

The Perceived Cultural Intelligence Of Leadership And Its Impact On Employee Organizational Commitment And Workplace Well-Being, Melinda Bowens

Dissertations

In today’s continuously evolving workplace, the role of leadership has expanded beyond traditional management competencies to encompass the ability to recognize, navigate, and leverage cultural differences. This quantitative study examines the relationship among perceived leader cultural intelligence, employee workplace well-being, and organizational commitment. Recognizing that workplace well-being and organizational commitment are critical to the overall health and success of organizations, it is essential to gain a greater understanding of the factors that influence these constructs. Accordingly, this study collected from 410 participants to investigate the relationship between perceived cultural intelligence of leadership, employee organizational commitment, and workplace well-being. Employing a …

Generations At Work: Examining Differences In The Nonprofit Sector, Cory J. Bergeron

Dissertations

This non-experimental quantitative dissertation examined generational differences among non-management employees in the United States nonprofit sector, where multiple generational cohorts work side by side. The problem addressed is that nonprofit leaders’ limited understanding of how distinct generational experiences shape employees’ work-related attitudes and preferences can contribute to conflict, reduced engagement, and costly turnover in already resource-constrained organizations. Grounded in Mannheim’s generational theory and Becker’s human capital theory, the study conceptualized generational cohorts as groups whose shared formative experiences influence what they value in their work context and how those values translate into human capital that affects organizational outcomes.

Using a …

“We Have Not Failed Our Country In The Past; We Shall Not Fail Her In The Future.”: The Army National Guard In Peace And War During The Interwar Period And World War Ii, Bearington C. Curtis

Dissertations

This dissertation explores one of the most fundamental questions in the War & Society field of American history: how the American people organize for war and how the citizenry has negotiated with themselves and their government to formulate a compromise that is culturally acceptable and militarily practical. Addressing such an elemental yet sweeping question of how a society organizes for war necessitates engagement with a broad swath of historiography, including institutional history, traditional and new military history, cultural assumptions of race and masculinity, politics, and civil-military relations. By taking a holistic approach, the various interests that shaped American military policy …

Pro Rege Chr. Brass Band: A Century Of Sound, Jonathan T.J. Henneveld

Dissertations

The Christian Brass Band Pro Rege of Heerenveen, The Netherlands, celebrated its one hundredth birthday in 2024. As one of the most prominent community-based brass bands in the region, Pro Rege is part of a Dutch wind ensemble tradition that goes largely undocumented. While they and other bands like them function as cultural and educational institutions, academic literature remains limited, almost ignoring them completely. This dissertation wishes to address this oversight by providing an historical study of the brass band from its establishment in 1924 to the present day.

Starting out in the Dutch ensemble tradition of the Fanfare band, …

Small College Registrars As Leaders: A Multiple Case Study Of Shared Leadership, Kyle John Wigboldy

Dissertations

This study investigates the leadership relationship between the small college registrar and the people with whom they work most closely. The college registrar is not structured to be a strategic leader within the small college, but their leadership contributions across the campus are constantly felt. This research uses a qualitative case study approach to explore how three college registrars lead and participate with coworkers.

This investigation used a multiple case study design where data collection involved exploring three small colleges of fewer than 1,000 students. The study used semi-structured interviews with the registrar at each of the three colleges, and …

Having Our Say: A Sociological Examination Of English Instruction In Urban High Schools And Effects On Black And Latino Identities, Jena Marie Escareno

Dissertations

This interdisciplinary study integrates a macro‑sociological perspective on language bias with an examination of English language instructional policies and practices that shape the identities of Black and Latino former urban high school students. Its purpose is to apply a sociological framework capable of illuminating the intersections of language, race, and social justice. By bridging linguistic, sociological, and educational theories, the study seeks to explain why current approaches to language instruction remain ineffective for urban learners and may inadvertently harm minority cultural identities.

Persistent disparities in urban academic achievement often highlight race and ethnicity as explanatory factors without acknowledging how these …

Exploring The Lived Experiences Of Second-Career Educators, Kyle Avink

Dissertations

School districts across the United States face a persistent teacher shortage driven by high attrition rates, declining enrollment in teacher preparation programs, and increasing demands on educators (Carver-Thomas & Darling-Hammond, 2017). Teacher attrition is especially high within the first three to five years, with nearly 40-50% of new teachers exiting within their first five years (Carver-Thomas & Darling-Hammond, 2017; Cells et al., 2023; Gray et al., 2015; Ingersoll et al., 2025). In response, many states have expanded alternative certification pathways that allow professionals from other fields to enter teaching, making second-career educators a potential solution to workforce challenges (Afacan, 2022; …

Assessing The Viability Of Cryptocurrency As A Payment Method: A Consumer Perspective, Aadavan Dharumaiyan

Dissertations

The problem addressed in this study was the limited mainstream adoption of cryptocurrencies for daily retail transactions despite continued technological advancement and increasing institutional interest. The purpose of this qualitative study, grounded in Husserlian descriptive phenomenology, was to explore the perceptual and behavioral factors influencing this adoption gap. Participants were recruited using snowball sampling, resulting in eight participants divided into two cohorts: active cryptocurrency payment users (Cohort 1, n = 2) and cryptocurrency holders who did not use cryptocurrencies for payments (Cohort 2, n = 6). Data were analyzed using the Moustakas phenomenological approach to identify patterns in participant experiences. …

Unpacking American Reception Of Glocalized Non-English Content In The Netflix Era, Sur Govindarajan

Dissertations

The swift growth of streaming services has revolutionized the worldwide distribution of media, making it possible for non-English and non-English-adjacent content to reach American consumers on a never-before-seen scale, which is sometimes perceived as an indication of increasing cultural tolerance. However, while a lot is known about what audiences see, far less is known about how they really understand and assess these stories. There is a fundamental vacuum in our understanding of audience reception as a lived, meaning-making process because previous research has mostly focused on consumption patterns. In order to close that gap, this study examines how American audiences …

Navigating Recovery: A Qualtitive Study Of Harm Reduction And Sobriety Among African American In Redlined Chicago Neighborhoods, Erica N. Tate

Dissertations

This qualitative study examines the lived experiences of African American individuals residing in historically redlined communities in Chicago who are maintaining sobriety using harm reduction strategies. Grounded in the context of structural inequities, the study explores how social determinants of health, including limited healthcare access, transportation barriers, and community disinvestment, shape recovery pathways. Semi-structured interviews were conducted with individuals in sustained recovery and providers, and the data were analyzed using inductive and deductive thematic approaches. Findings indicate that recovery is an ongoing process influenced by environmental exposure, trauma, and access to support systems.

Participants identified harm reduction strategies, such as …

From Policy To Practice: Examining The Influence Of Family Engagement In Administrative Evalustions On School Partnerships, Leadership Perceptions, And Family Engagement Planning In Title I Schools., Shauana L. Harris

Dissertations

This study examined the impact of a policy requiring family and community engagement metrics to be included in administrator evaluations as a strategy to improve engagement practices and student outcomes. The purpose of the study was to determine the extent to which the policy influenced administrator practices related to partnering with families on academic performance, family engagement planning, and administrators’ perceptions of changes in family engagement practices. This study used a mixed-methods research design. Data were collected through surveys of Title I school administrators in the state under study and through an analysis of School Improvement Plans and Parent and …

Ptsd, Policy, And Passion: An Advocate's Autoethnographic Journey To Improve Veteran Care, Christopher L. Stansbury

Dissertations

                                                                Abstract

This autoethnographic study focuses on Post-Traumatic Stress Disorder (PTSD) among U.S. veterans and the policies and practices that impact life outcomes. The research answers the questions: (1) what insights emerge from the author’s embedded advocacy experience; (2) what systemic barriers impede veterans’ access to PTSD treatment; and (3) how does military culture shape help-seeking behavior. This research draws on the author’s multigenerational and institutional ties to military service—as descendant of a Korean-era veteran, Marine and Army servicemember, VA employee, and veteran advocate. The researcher constructs detailed autoethnographic and composite narratives of the lived experiences of service members who develop …

Agents Of Agency: Identifying Teacher Traits And Trainings Associated With Promoting Student Agency, Clara Mateo

Dissertations

This study shifts the focus of mathematics teacher quality from the traditional metric of test scores to “student agency,” defined as a learner's capacity to access power, make decisions, and take ownership of their learning process. While the literature on student agency provides ample qualitative insights, it is largely composed of small-scale studies. This research addresses this gap by conducting a large-scale, nationwide quantitative analysis to identify teacher factors associated with the promotion of student agency. The central research question is: What teacher demographics, dispositions, and professional development experiences are associated with increased student agency?

This study used a cross-sectional …

The Impact Of Framing Effects And Moral Values On Prosocial Engagement, Olajuwon Olagbegi

Dissertations

Framing effects can shape perceptions, beliefs and behavior, particularly in prosocial contexts. The current study examined how language framing (social justice, social activism, volunteerism) and moral values influence interest in prosocial engagement across low- and high-cost helping scenarios. Participants (N = 219) were randomly assigned to one of three framing conditions and reported willingness to help in both low- and high-cost situations. They also completed the Moral Foundations Questionnaire. Replicating prior work (Olagbegi and colleagues, 2024), participants were more willing to engage in low- than high-cost helping. Across conditions, social justice framing elicited the greatest willingness to help. Higher fairness …

An Assessment Of The Deep And Coastal Responses To Hurricane Passage In The Gulf Of Mexico, Using Complementary Observational Records And Model Simulations, Senam Kofi Tsei

Dissertations

In this dissertation, I examine and discuss different ocean features and ocean processes essential to the intensification of tropical cyclones in the Gulf of Mexico, drawing on observations, theory, and numerical model analyses across both the deep ocean and continental shelf-regimes. In the deep ocean, I integrate in situ measurements, theoretical framework, a 1D shear driven mixed layer model, and a high resolution model outputs to evaluate how salinity-driven stratification, Loop Current warm core eddies, pre-existing warm mixed layer temperatures, and the governing mechanisms mixed layer adjustment shape the upper ocean response before, during, and after storm passage. In the …

Intelligent Surveillance For Weapon Threat Detection: Transformer-Based Detection And Segmentation Using Thermal And Rgb Imagery, Akhila Kambhatla

Dissertations

Proactive public-safety surveillance requires deep learning systems that can detect and segment weapons reliably under real-world conditions. This research develops and evaluates a progressive, multi-phase pipeline that moves (i) from RGB object detection to pixel-level semantic segmentation and (ii) from visible-spectrum cameras to thermal imagery to improve robustness under low-light, clutter, and occlusion. Early phases establish strong detection baselines using one-stage and two-stage detectors (YOLOv5 and Faster R-CNN) for multi-class weapon localization, followed by practical optimization through pruning and ensembling to reduce false positives and computational overhead while maintaining real-time feasibility. Building on the limitations of bounding-box localization, the methodology …

A Multiple Case Study Of Place-Based Promise Programs, Chad Edward Inabinet

Dissertations

This qualitative multiple case study examines three place-based Promise Programs situated in Midwestern community colleges to understand how they are designed, implemented, and experienced by staff and students. Guided by General Systems Theory, data are collected from program documents, archival sources, and 13 interviews with staff and students across three sites. Within- and cross-case analyses explore program origins, design features, partnerships, student supports, financial sustainability efforts, and outcome tracking. Findings show that: funding models shape eligibility and long-term stability; partnerships with K–12 districts, colleges, funders, and community organizations are essential for implementation; proactive supports, such as advising and mentoring, improve …

Transition Experiences Of Early Middle College Completers: A Grounded Theory Study, Sarah Louise Drabik Cheatham

Dissertations

Early middle college (EMC) students arrive at universities academically prepared yet institutionally undefined, occupying a space between traditional first-year and transfer student identities. Emerging through the Early College High School Initiative, EMC programs were structured to expand college access by embedding college coursework within the high school experience (Edmunds et al., 2012; Edmunds et al., 2017a; Haxton et al., 2016; Miller et al., 2013). Students frequently graduate from EMC with significant college credit, up to an associate’s degree, and demonstrate strong rates of post-secondary credential attainment and accelerated progress toward a bachelor’s degree (Edmunds et al., 2012; Edmunds et al., …

Perceptions And Practices: A Qualitative Study Of Middle Grades Physical Science Teachers’ Knowledge And Use Of Formative Assessment, Michelle Morgan

Dissertations

Declining content mastery scores in middle grades physical science across the River Valley School District, as reflected in College and Career Ready Performance Index data, have raised concerns about instructional practices and the use of formative assessment. Although formative assessment is widely recognized as a high-impact practice, limited research has examined how middle school physical science teachers’ conceptual knowledge aligns with their instructional planning and classroom practices. The purpose of this qualitative multiple case study was to explore teachers’ knowledge of formative assessment and the relationship between their stated beliefs and instructional practices. Participants included five eighth-grade physical science teachers …

The Impact Of Targeted Remediation On Reading Growth Among Remedial Middle School Students, Jennifer Givens

Dissertations

Many middle school students enter secondary education with below grade-level reading skills and are unable to demonstrate measurable growth without structured intervention. This study examined relationship between participation in a targeted Remedial Education Program (REP) English Language Arts (ELA) course and reading growth, as measured by the Northwestern Evaluation Association’s Measures of Academic Progress (NWEA MAP) Reading assessment. A quasi-experimental design compared fall-to-winter MAP Reading RIT growth between students enrolled in REP and academically similar students receiving special education services but not enrolled in REP. This study also investigated whether the effects of the intervention varied based on gender or …

Students’ And Teachers’ Perceptions Of The Impact Of I-Ready On Students’ Math Achievement, Tanisha L. Wright

Dissertations

This semester-long qualitative study included semi-structured interviews to gather ideas, opinions, and impressions (perceptions) regarding the i-Ready Program, a computer-based solution used to address students’ math deficiencies.  The researcher interviewed three teachers who volunteered to participate. These teachers had at least five years of teaching experience and at least two years of i-Ready use. The researcher also interviewed eight students with varying learning abilities. Parental consent was obtained to conduct the interviews.

Although this program is very popular and used in multiple school districts, this research aims to determine whether it is the best solution for our school district in …

Secondary Teachers’ Perceptions Of Professional Development And Learning, Shannon Thompson Lawson

Dissertations

The purpose of this qualitative research was to examine how secondary teachers perceive their professional learning and development experiences and how organizational and leadership structures shape those perceptions. This study was grounded in phenomenographic methodology, which seeks to understand the qualitatively different ways individuals experience a shared phenomenon. Leader–member exchange (LMX) theory and transformative learning theory served as interpretive frameworks for examining relational leadership dynamics and shifts in instructional beliefs and practices.

A purposeful sample of 10 secondary teachers (Grades 9–12) from a suburban public high school participated in the study. Data were collected through semistructured interviews and analyzed using …

Examining The Domestic Politics Of Nuclear Policymaking In America: Us Participation In Nuclear Agreements From 1948 To 2024, Stephanie A. Stapleton

Dissertations

his dissertation examines how partisan polarization and party affiliation shape US participation in nuclear agreements. Consensus views within the nuclear policy community hold that Republican governments are necessary to make new agreements, but Republicans generally oppose new nuclear restrictions. Prompted by a trio of agreement terminations between 2018 and 2020, this research tests whether polarization has become a structural factor restricting US engagement in nuclear agreements. Using an original dataset of 86 nuclear agreements spanning arms control and extended deterrence between 1948–2024, this dissertation uses a quantitatively focused embedded mixed-methods design complemented by senior nuclear policy practitioner interviews. This research …

A Cross-Cultural Comparison Of Pre-Service Mathematics Teacher Preparation Approaches In Jamaica And Historical Black Colleges And Universities In The Southeast United States, Sandra Riley-Brown

Dissertations

This qualitative comparative case study embarked on an in-depth exploration and comparison of the approaches to pre-service mathematics teacher preparation programs (PMTPP) in Jamaica and Historically Black Colleges and Universities (HBCUs) in the Southeast United States (U.S.), employing a cross-cultural lens. The primary objective of the study was to identify and analyze the similarities and differences between the methodologies utilized in PMTPP across these two regions, with a specific focus on how HBCUs addressed the preparation of culturally responsive educators. The research took two distinct phases. The initial phase involved a thorough analysis of documents provided by the participants. This …

A Case Study Of Experiential Learning In A High-Poverty Middle School, Diona F. Brown

Dissertations

This study examined the impact of experiential learning on student achievement in a high-poverty Title I middle school and explored how school leaders perceive and support its implementation. Grounded in experiential learning, active learning, and social justice theories, this research aimed to better understand how instructional practices can improve outcomes for students facing economic and educational challenges. A convergent parallel mixed-methods design was used. Quantitative data were collected through pre- and post-assessments administered to two groups of eighth-grade mathematics students: one receiving experiential learning instruction and the other receiving traditional instruction. Qualitative data were collected through surveys of school administrators …

The Digital Divide And Participation In Financial Services: A Self-Determination Theory Perspective, Melissa A. Cunningham-Sereque

Dissertations

The global financial technology (FinTech) market reached nearly $395 billion in 2025 and is projected to surpass $1 trillion within the next decade (Fortune Business Insights, 2025). As digital technologies become increasingly embedded in banking and financial services, this dissertation responds to calls within the Information Systems (IS) discipline to better understand digital access, inclusion, and participation in financial systems (PFS). Drawing on Conservation of Resources (COR) Theory, this study used prominent dimensions from extant digital divide literature to build a digital resource domain consisting of connectability, affordability, usability, mentality, and skill. These dimensions are proposed to influence intrinsic motivation, …

Examining Mathematics Teachers' Competencies For Facilitating Collaborative Learning In High School Settings, Tessy J. Pereira

Dissertations

Collaborative Learning (CL) – an instructional approach in which students work interdependently in groups to achieve shared academic goals through mutual engagement – has gained remarkable attention in high school mathematics classrooms; yet research examining the pedagogical competencies teachers need to effectively plan, implement, and reflect on CL remains limited. Pedagogical competencies, as defined by Kaendler et al. (2015), refer to the observable teaching behaviors that support student collaboration throughout an instructional cycle. This case study examined how seven high school mathematics teachers demonstrated five competencies – planning, monitoring, supporting, consolidating, and reflecting – using the Implementing Collaborative Learning in …

Recruiting And Retaining Teachers In A Rural School District: A Case Study, Gerald J. Bavero

Dissertations

         This exploratory case study aimed to understand the specific strategies that rural school leaders employ to address the challenges associated with recruiting and retaining teachers in rural schools.  It sought to understand the effectiveness of these strategies within the unique economic and cultural landscape of South West County and to identify practices that could inform broader educational policy and practice in this and similar rural settings.  A qualitative case study approach utilizing semi-structured interview questions was conducted to discover what teacher recruitment and retention strategies school leaders implement and how teachers perceive these strategies.  Findings indicate both formal and informal …

A Phenomenological Study Of Teachers Who Use Oral Reading To Foster Student Reading Fluency And Engagement, Donyetta Grimes

Dissertations

The National Reading Panel (2000) recommends oral reading instruction as a means to improve overall reading fluency and reading comprehension. Oral reading fluency is a necessary foundational skill, and students who have not mastered it by the end of third grade, when students transition from learning to read to reading to learn, become struggling adolescent readers (Ming, 2018). Furthermore, there is a lack of research on reading fluency past the primary grades (Makebo et al., 2022). Additionally, research gaps exist when considering teachers’ actual practices during reading instruction (O’Sullivan et al., 2009). This gap is particularly concerning considering that teachers …