Digital Commons Network^™

Challenges In Providing Equitable Education For Primary School Students With Learning Disabilities In Zimbabwe: Teachers’ Experiences., Joyce Madzinga

Dissertations

This study examines the challenges primary school teachers in Zimbabwe face when supporting students with learning disabilities (LDs). Many learners with LDs are excluded from adequate classroom support due to systemic, cultural, and resource limitations. Learning disabilities are often under-recognized as compared to other disabilities because they are invisible. Raising awareness and empowering educators are crucial steps toward addressing these hidden needs and ensuring they are recognized and met. Six teachers were interviewed using a qualitative ethnographic approach. Findings reveal obstacles, including insufficient training in special education, limited teaching resources, high pupil-teacher ratios, negative societal attitudes, and poverty-related constraints. Additional …

Appearance Over Function - The Impact Of Long-Term Oral Contraceptive Use On Brain Development, Breast Tissue Composition, And Future Lactation Outcomes, Fiona M. Wang

Dissertations

This integrative review examines the long-term effects of combined oral contraceptive (COC) use beginning in puberty on brain development, breast tissue composition, and future breastfeeding outcomes. Puberty is a critical developmental stage during which hormonal changes significantly impact the neurological and reproductive systems. The introduction of synthetic estrogen and progestin through COC use during this time may disrupt natural hormonal pathways, potentially altering neuroendocrine signaling and breast tissue maturation. Such changes may have lasting consequences, including impaired milk production, a weakened milk ejection reflex, disrupted maternal-infant bonding, and reduced overall breastfeeding success. The review synthesizes findings from endocrinology, neuroscience, and …

The Global Phase Space Of The Three-Vortex Interaction System And Its Application To Vortex-Dipole Scattering, Atul Anurag

Dissertations

This dissertation presents a global reduction of the classical three-vortex problem that is free from coordinate singularities, enabling a comprehensive analysis of the system's dynamics across all circulation regimes.

To achieve this, a two-step symplectic reduction procedure is developed. The first step introduces Jacobi coordinates adapted to the symplectic structure of the vortex system, and the second applies a Lie-Poisson reduction to the resulting system. This formulation eliminates the non-physical singularities associated with collinear vortex configurations and facilitates a global phase space analysis, including a detailed and novel investigation of bifurcations.

Within this reduced framework, all relative fixed points are …

Robust Ai Solutions For Financial Markets Through Generative Modeling, Dynamic Graph Learning, And Reinforcement-Based Portfolio Optimization, Jingyi Gu

Dissertations

Financial markets are inherently uncertain and dynamic, driven by complex factors such as macroeconomic signals, investor sentiment, and evolving inter-asset relationships. While machine learning has advanced financial modeling, existing approaches often fall short in addressing the real-world intricacies of finance. This dissertation confronts two critical challenges, human-driven stochasticity and risk-intensive decision-making under real-world trading constraints, while seizing a pivotal opportunity, the structural dynamics of evolving financial systems. These elements are foundational to advancing robust and practical financial intelligence.

To this end, this dissertation develops a unified framework for robust financial modeling and decision-making. The framework is architected as a progressive, …

Large-Scale Graph Algorithms And Applications With An Emphasis On Fintech Data, Fuhuan Li

Dissertations

Graph algorithms are essential analytical tools with applications spanning cybersecurity, biology, social media, and increasingly, financial technology (FinTech). The complex and interconnected nature of financial data, particularly in cryptocurrency networks, presents unique opportunities for graph-based analysis in fraud detection and anomaly identification.

This dissertation presents the design and implementation of scalable graph algorithms tailored for large-scale networks, with particular emphasis on FinTech applications. The primary contributions include: (1) novel cover-edge based triangle counting algorithms that significantly reduce computational overhead through breadth-first search preprocessing, achieving substantial speedups over traditional methods and dramatic communication reduction in distributed settings, (2) optimized parallel implementations …

Bodipy-Based Photocages For The Controlled Release Of Hydrogen Sulfide And Persulfides, Yanmei Li

Dissertations

Reactive sulfur species (RSS) such as hydrogen sulfide (H2S) and hydropersulfides (RSSH) are crucial mediators in a variety of physiological and pathological processes. Their regulatory roles span from maintaining cellular redox balance to influencing signaling pathways critical for homeostasis and stress responses. This dissertation investigates H2S and RSSH as biologically important molecules and explores the development of boron-dipyrromethene (BODIPY)-based photocages for its controlled, light-triggered release. Given H2S and RSSH's critical role in redox regulation and cellular protection, achieving spatiotemporal control over its delivery is essential for both therapeutic and research applications. BODIPY scaffolds offer favorable photophysical properties, including visible-light activation …

Reduced Order Models Of Hydrodynamically Interacting Flapping Wings, Jose Pabon

Dissertations

Fish schools exhibit a collective behavior and self-organization that is mediated by hydrodynamic interactions between individual fish. However, the long-time evolution of hydrodynamically interacting collectives is challenging to investigate due to the persistent influence of long-lived vortical structures, and the high-resolution requirements of direct numerical simulation at large Reynolds numbers. Reduced-order models have therefore played an important role in theoretical investigations of collectives of swimming bodies. The main results detailed herein are several new reduced-order models of swimmers that self-propel by flapping, i.e., by executing a prescribed periodic rigid body motion. The models are extensions of a discrete-time dynamical system …

Harnessing Graphs For Knowledge Representation In Natural Language Processing, Uras Varolgunes

Dissertations

This work proposes innovative methods for integrating domain-specific knowledge into natural language processing tasks through the use of graphs, aiming to enhance the performance of models across various domains, including finance and healthcare. Several novel approaches are proposed that fuse graph structures with modern deep learning techniques, addressing the challenges of missing word embeddings, label prediction, and graph representation learning for large language models.

First, a powerful embedding method built on top of the recent advances in latent graph learning is introduced to address the critical problem of word embedding imputation. Second, a graph-enhanced label attention model designed for medical …

Optimizing Hip And Knee Assistance For Walking And Sit-To-Stand Transitions: An Intrinsic Muscle Mechanics Based Predictive Approach, Neethan Ratnakumar

Dissertations

As the global population ages, the demand for wearable assistive technologies continues to rise, driven by their potential to enhance mobility and independence in older adults. Effectively designed controllers for lower-limb exoskeletons to assist sit-to-stand (STS) and walking are crucial for delivering efficient, safe, and comfortable assistance during daily activities. Traditionally, controller optimization involves biomechanical modeling and user-specific customization. Musculoskeletal simulations play a central role in this process by providing insights into human-exoskeleton interaction dynamics, thereby informing and refining control strategies.

This work presents a simulation-driven approach for developing exoskeleton controllers for walking and STS using two distinct methods: optimal …

Development And Implementation Of Novel Mass Spectrometric Methods For Metabolism Studies In Drug Discoveries, Huifang Yao

Dissertations

The field of drug discovery has evolved significantly over the past few decades, with a growing emphasis on understanding the metabolic pathways and biotransformation processes that influence the pharmacokinetics and pharmacodynamics of drug candidates. Novel mass spectrometric methods have emerged as powerful tools in this domain, facilitating the comprehensive analysis of metabolic profiles and enabling the identification of metabolites with implications for safety, efficacy, and overall drug development. However, challenges remain in quantifying metabolic flux—an essential aspect of understanding drug action—particularly due to the limitations of traditional isotope kinetic assays, which often involve lengthy sample preparation and the use of …

Multi-Messenger Diagnostics Of The Origin And Transport Of Solar Energetic Particles, Meiqi Wang

Dissertations

Impulsive solar energetic electron events (SEEs) are a common phenomenon originating from the Sun. They are characterized by rapid onset and brief duration, and are commonly associated with solar flares. Solar radio bursts, which offer a rich variety of diagnostic tools for solar activities, exhibits a close relationship with impulsive solar energetic electron events. Such diagnostics are particularly powerful when combined with multi-wavelength remote sensing and in situ observations. The dissertation focuses on combining state-of-the-art microwave imaging spectroscopy data obtained by the Expanded Owens Valley Solar Array (EOVSA) with other multi-messenger observations to investigate the origin of impulsive solar energetic …

2+2 Doesn't Always Equal 4: A Mixed Methods Approach To U.S.-Born Children Of Immigrants' Cultural Identities And Belonging, Teriin Lee

Dissertations

Within the next generation, one in five adults born in the United States will be a child of immigrants. Despite this, research on children of immigrants is limited. Specifically, the scholarship on this growing demographic limited their experiences to cultural identity, as it pertains to belonging. Simply put, the literature supposes that children of immigrants’ cultural identities define their sense of belonging. Moreover, the literature lacks insight into the lived experiences of children of immigrants, despite the increasing prevalence of this population.

This study aimed to address how children of immigrants experience cultural identity and belonging. A mixed methods research …

Developing An Instrument To Measure Teacher Attitudes Toward Multilingual Pedagogies, Lauren H. Ramers

Dissertations

In an increasingly globalized world, substantial numbers of multilingual learners occupy K–12 and higher education spaces bringing diverse linguistic resources that, when intentionally and appropriately leveraged, can significantly enhance English language learning outcomes. Multilingual pedagogies, which honor and build upon students' full linguistic repertoires, are essential for fostering equitable and inclusive learning environments. This quantitative exploratory study investigated teachers' attitudes toward multilingual teaching with the goal of developing a reliable survey instrument—the Multilingual Pedagogy Scale (MPS)—to measure how teachers perceive language learning in multilingual classrooms and what they report doing in their classrooms.

First, a review of the research helped …

Racial Identity And Belonging Among Asian American Undergraduate Students In The Midwest, Seema M. Dahlheimer

Dissertations

Asian American students are often deemed overrepresented in higher education, leading to inequities in admissions, scholarships, and student support. This perception feeds and is fed by the model minority stereotype, which characterizes Asian Americans as hard-working and high-achieving and creates intense pressure to succeed academically (Poon et al., 2016). In addition, Asian American college students often experience racism and xenophobia, which can undermine their sense of belonging on campus. However, in the Midwest, where their immigration is more recent and conversations about race are often framed in terms of Black and white, Asian Americans often feel invisible and othered (Lee, …

Can We All Get Along? Assessing Interdisciplinary Collaborations At A School Of Health Sciences, Merly Thomas

Dissertations

This study explores the process, conceptualization, and understanding interdisciplinary collaborations through a lens of organizational learning. More specifically, this research focuses on the barriers, challenges, definitions, and self-constructed metrics with a health sciences campus, situated in a religious institution in the Midwest. Through a single institution qualitative case study, this research interviews 16 participants, spanning across program coordinators, directors, and individuals in both operations and administration, to examine how a school of health sciences housed at an academic medical campus, operates across disciplines and departments, to advance interdisciplinary collaborations that foster a more productive and engaged workforce. Findings illuminate the …

Comprehending Students' Experiences With A Language Learning Resource Center: A Descriptive Phenomenological Study Of College Life And Belonging, Paulina Dzieza

Dissertations

This study explores the impact of Language Learning Resource Center (LLRC) services on college students' overall college experience and their sense of belonging on campus. In the constantly evolving world of higher education, higher education institutions work to provide welcoming spaces where students can flourish academically and socially. In higher education, where there is a growing focus on student support services, the LLRC is essential for promoting academic achievement, cross-cultural interaction, and social integration for foreign language learners. This qualitative study, guided by a combined theoretical framework of Community of Practice and Ethics of Care, aims to advance knowledge of …

The Residual Impact Of Slavery On How Enslaved Black Females Defined And Made Meaning Of Sexual Violence: A Content Analysis, Suzanne R. Bates

Dissertations

Thompson-Miller & Picca (2016) and Feimster (2023) argued that enslaved African American women, and even free African Americans after the Civil War were victims of non-consensual sexual activity and rape. The NISVS report revealed that before the age of 18 years old, 35.5% of African American women experienced contact sexual violence, 29.5% experienced non-contact unwanted sexual encounters, and 20.7% experienced rape (Basile et al., 2022). Researchers of slave scholarship have made the case for the importance of including discourse on slavery and enslaved Black females’ experiences when discussing present day sexual violence among Black women in the US today (Balfour, …

The American Politics Of Firearms - The Case Between Illinois And Missouri, Michael J. Thompson

Dissertations

The issue of gun control is a hot topic in the field of American politics. It is a huge issue in the field of political science and in American public policy. In 2023, there were 18,874 firearm deaths in the United States, excluding suicides. The highest was in 2021 with the firearm related deaths at 21,068. One side argues that firearms can cause serious harm and death while the other side argues they can also reduce the rates of gun violence. There are different opinions on how to resolve the issue of mass shootings across the country. According to prior …

Muscarinic Acetylcholine Receptor 1: Implications For Precision Medicine And Rett Syndrome Therapeutics, Mackenzie Smith

Dissertations

Rett syndrome (RTT) is a rare neurodevelopmental disorder caused by mutations in the gene coding for methyl-CpG binding protein 2 (MeCP2). Currently, there is no cure for RTT and few effective treatment options to address the social, cognitive, motor, and respiratory symptoms that patients face. With the goal of identifying novel targets, our lab performed RNA-sequencing experiments in human autopsy samples and found decreased levels of the M1 muscarinic acetylcholine receptor. We have established that potentiation of this receptor in a Mecp2+/- mouse model of RTT rescues social, cognitive, and respiratory phenotypes, providing support for using drugs that act on …

Biophysical Effects Of Altered Myosin Binding Protein Stoichiometry In Atrial Myofilaments, Kelly N. Araujo

Dissertations

Cardiomyopathies, such as hypertrophic and dilated subtypes, are leading causes of heart failure and are often driven by genetic mutations that disrupt the structure and function of the cardiac sarcomere. While much of the research has focused on ventricular involvement, the role of atrial sarcomere dysfunction remains unexplored. The regulation of contractile function by sarcomeric proteins in the atria remains poorly understood, especially the impact of protein stoichiometry among myosin binding proteins. Cardiac myosin binding protein-C (cMyBP-C) and its atrial paralog, myosin binding protein H-like (MyBP-HL), have been shown to have a stoichiometric relationship within the atrial sarcomere. These two …

Precarious Privilege: Exploring The Intersection Of White Teacher Habitus And Social Justice In International Schools, Kevin L. Workman

Dissertations

This qualitative study explored the underresearched phenomenon of White teacher allyship within an emergent diversity, equity, inclusion, and justice (DEIJ) movement in international schools. Gaining momentum in 2020 as a digital, postcolonial counterstory, the movement exposed structural inequities and racism across the international school ecosystem. Applying an antiracist reading of Bourdieu’s (1977) theory of practice, the study analyzes how White teachers (n = 8) from diverse international contexts understand, experience, and assess their participation in DEIJ activities. Thematic analysis of interview data corroborated the digital voices, explicitly identifying White supremacy as a key force shaping the field’s doxa. The study …

Archival Articulations Of Belonging: Resistance, Reimagination, And Resilience In School And In Incarceration, Caroline Hastings

Dissertations

Belonging is a universal desire, providing purpose and comfort, that supports our ability to survive and triumph through difficulty. A lack of belonging can impact one’s likelihood of becoming incarcerated. In turn, incarceration stigmatizes individuals and disrupts connections with family, friends, and community members. This study of individual’s experiences of belonging analyzed reflective written accounts created during incarceration. This phenomenological qualitative examination of belonging for formerly and currently incarcerated individuals, disproportionately people of color and individuals with disabilities, sought to deepen our understanding of belonging as a force in their lives. In the United States, high rates of incarceration impact …

Adapting To Change: Adn Faculty Perspectives About The Future Of Adn Education: A Qualitative Case Study, Linda D. John

Dissertations

The purpose of this qualitative single case study was to offer more insight into how the adoption of the BSN as the entry-level for nursing practice affects the future ADN education and what the change means for ADN faculty at multiple programs throughout regions of the United States. Eleven ADN faculty were sampled to acquire their perspective about this phenomenon.

Joint Kinematics And Kinetics During Vertical Jump Landings With Progressively Increasing External Loads, Darcie L. Yount

Dissertations

This study examined sagittal and frontal plane kinematics and kinetics during countermovement jump (CMJ) landings performed with either a traditional barbell (BB) or a hexagonal bar (HEX) across increasing submaximal loads in recreationally active males. Generally, hip and knee flexion angles and joint mean angular velocities decreased as loads increased. Hip extension and knee flexion moments increased as load increased up to 20 kg, at which point these values decreased. Performing the CMJ with the HEX exhibited increased frontal plane stability compared with the BB group. Additionally, the BB group exhibited stiffer landing strategies, with decreased sagittal plane joint angles …

Elizabeth Female Academy: A Historical Case Study Revealing Antebellum Mississippi's Role In Shaping The Southern Belle, Summer Cutrer Tierno

Dissertations

Historians and educational scholars have extensively examined the subject of women's education, resulting in a rich body of literature that traces its evolution over the centuries. Moreover, this body of work encompasses significant movements advocating for women's rights to education and the establishment of colleges specifically for women. Scholars have also analyzed the challenges women encounter in accessing educational opportunities, including societal norms, economic barriers, and institutional discrimination. Notable works highlight the contributions of key figures, such as Mary Wollstonecraft, who advocated for women's education in both historical and contemporary contexts. Overall, this comprehensive scholarship not only documents the advancement …

Exploring The Connection Between Emotional Intelligence And Academic Achievement In Senior Nursing Students, Kimberly Smith

Dissertations

The need for nurses is now greater than ever, with a projected shortage of nearly five million nurses by 2030. Several factors exist that hinder the number of practice-ready nurses, causing nursing programs worldwide to explore and re-examine admission practices and increase student retention rates. The American Association of Colleges of Nursing (AACN, 2024) reported that over 100,000 students were denied enrollment in baccalaureate and graduate nursing programs in 2024, indicating that maximizing admission processes is crucial in addressing the current nursing shortage. This emphasizes the need for greater participation to ensure that all students have access to the educational …

Uncle Sam Plays Matchmaker: Intimate Encounters, War Brides, And Marital Policy In The Vietnam War Era, Daniel P. Ward

Dissertations

During the Vietnam War era, thousands of American GIs married Southeast Asian women who immigrated to the United States together. While considerable scholarly attention has focused on the political and social dimensions of the Vietnam era sex work industry, the regulation of marriage and immigration policies for Vietnamese American couples provide new perspectives to explore. Although intimate encounters with local women also pervaded other twentieth century conflicts, the Vietnam War saw the American military implement a new system to screen and regulate war bride marriages. In doing so, Military Assistance Command, Vietnam (MACV) constructed the first interservice set of marriage …

Examining Nonprofit Social Service Sector Burnout And Turnover: Trait Mindfulness As A Moderator Of Work-Life Balance And Compassion Fatigue, Melissa L. Brown

Dissertations

Nonprofit burnout and turnover surpass all national industries, specifically in the social services subsector. In contrast to their for-profit counterparts, nonprofit turnover rates remain on the rise. While literature indicates that one of the primary drivers of nonprofit turnover is burnout, more granular research proposes that nonprofit social service employees encounter a distinct form of burnout generated by the exposure to secondary traumatic distress known as compassion fatigue. This study investigated the antecedents of this phenomenon by examining trait mindfulness as a moderator of work-life balance and compassion fatigue among nonprofit social service providers. To sustain a workforce that provides …

Adolescent Students’ Adaptability During The Covid-19 Pandemic Impacting Their Academic Preparedness In College: A Qualitative Exploration Of Resilience In Secondary School Disruptions, Nicole Tyanne Jameson

Dissertations

This study, conducted several years after the onset of the COVID-19 pandemic, takes a unique approach to investigating the long-term effects of the pandemic-induced disruptions on adolescents during secondary schooling and their academic preparedness in college. The study combined a descriptive qualitative analysis of academic routine data with quantifiable resilience scores, providing a comprehensive understanding of the challenges students faced, their adaptability and resilience, and the overall impact on their education journey into college. This comprehensive descriptive qualitative study utilizes triangulation of quantitative data and qualitative approaches to understand the subject matter thoroughly. The quantitative scores meticulously analyzed resiliency and …

Teaching Students Who Have Been Identified With Autism In The Private Piano Teaching Studio: An Application Of General Music Resources And Interviews With Specialists In The Field, Joy Parker

Dissertations

This dissertation is a practical resource for private piano teachers seeking to gain a better understanding of teaching students with autism. Resources used in general music instruction of students with autism were consulted, and relevant information was adapted for the private piano setting. Additionally, resources that are tailored to private piano teaching of students with an identified disability were consulted.

Interviews with three individuals who have experience working with individuals with autism were conducted, and methods and strategies that they found to be most successful were ascertained. One of the interviewees was Dr. Derek Polischuk, Professor of Piano and Director …