Digital Commons Network^™

An Exploratory Study In Sports Geography: The Interaction With The Environment And Sense Of Place In Endurance Running Events, Jackson Steffener

Dissertations and Theses @ UNI

This study examines how endurance running shapes runners' sense of place through interactions with physical environments, social dynamics, and embodied experience. With sports geography, it explores how participants form emotional and spatial connections to race settings while moving through varied landscapes under physical strain. A phenomenological multi-site case study design was used, focusing on four endurance events in Iowa that differed in terrain, setting, and structure.

Data were collected from 46 participants using mental mapping and semi structured field notes. Mental maps identified meaningful locations along race courses, while field notes captured emotional responses, environmental conditions, and social interactions. Thematic …

The Politics Of Survival: South-South Migration, Urban Informality, Governance, And The Food Security Nexus In Nairobi, Kenya, Zack Ahmed

Theses and Dissertations (Comprehensive)

This dissertation contributes to the scholarship on South-South migration by integrating food security into the analysis of urban governance and migrant livelihoods in Sub-Saharan Africa. While migration and development have been widely examined, their connection to food systems remains underexplored, particularly in urban settings where informality, displacement, and transnational mobility converge. The research addresses this gap by investigating how Somali migrants and refugees in Nairobi’s Eastleigh navigate food insecurity within overlapping systems of governance, inequality, and transnational exchange. It explores three dimensions: the structural and socio-economic determinants of migrant household food insecurity, the impact of the COVID-19 pandemic as a …

Cognitive Load Classification Using Functional Near-Infrared Spectroscopy, Pratham Shah

Theses and Dissertations (Comprehensive)

This thesis investigates the classification of cognitive load using functional near-infrared spectroscopy (fNIRS) signals recorded during an N-back working memory task. The study introduces a novel short-channel correction layer designed to suppress superficial physiological noise adaptively, addressing limitations of traditional General Linear Model (GLM) based regression. A single participant dataset comprising 69 validated sessions was analyzed using both conventional machine learning and deep learning approaches. Traditional classifiers: Linear Discriminant Analysis (LDA), Support Vector Machines (SVM), Random Forests, and Gradient Boosting were first evaluated using statistical features (mean, variance, peak, and slope). Among these, Gradient Boosting achieved the highest accuracy (55.6%), …

Error-Driven Density Control For Compact Gaussian Splatting Under Sparse Supervision, Abdelrhman Elrawy

Theses and Dissertations (Comprehensive)

This thesis studies efficiency and stability challenges in Gaussian-splatting-based reconstruction under sparse supervision. In few-shot novel view synthesis, standard 3D Gaussian Splatting (3DGS) can overfit the limited training views and grow an unnecessarily large number of primitives due to limitations in its Adaptive Density Control (ADC) mechanism. This thesis introduces an error-driven reformulation of ADC that triggers densification using opacity gradients as a lightweight proxy for rendering error, and shows that such aggressive densification must be paired with delayed and conservative pruning to prevent destructive create--destroy cycles. When combined with depth-based geometric regularization, the resulting framework produces substantially more compact …

Investigating The Immunostimulatory Potential Of Dsrna-Silk Nanoparticle Complexes In Melanoma, Samuel J. Peters

Theses and Dissertations (Comprehensive)

The rate of resistance to immune checkpoint inhibitor treatment in metastatic melanoma is quite high, with an overall rate of 70%. Melanoma achieves these high rates of resistance by suppressing the immune response in the tumour microenvironment (TME), making them immunologically “cold”. The type 1 interferon response could be leveraged to initiate immune responses in melanoma, making their “cold” TMEs “warm” again. Double-stranded ribonucleic acids (dsRNAs) are potent activators of an innate immune response; however, they are susceptible to degradation by nucleases present in the body and need a carrier. Silk nanoparticles (SNPs) are an ideal drug-delivery platform as they …

Investigation Of Mercury Bioaccessibility In Subsistence Fishes From The Canadian Subarctic, Kiran Mateo Sharma Mr

Theses and Dissertations (Comprehensive)

Fish consumption is the primary pathway for human exposure to methylmercury (MeHg), a global contaminant of concern known to cause adverse health effects. Fort Albany First Nation, a remote Indigenous community in northern Ontario that relies on fish for both subsistence and cultural practices, has expressed concern regarding the safety of local fish consumption. Community members and leaders have communicated several priorities for scientific research that are the foundation of this thesis. Specifically, consumers of wild-caught fish have asked how traditional cooking methods may affect mercury concentrations in fish, and how mercury concentrations in little-studied organs, such as liver and …

Is Prosocial Behavior A Unique Correlate Of Academic Success In Emerging Adulthood?, Jacqueline Di Biase

Theses and Dissertations (Comprehensive)

Prior developmental research has frequently linked prosocial behavior to stronger academic functioning during childhood and adolescence (Cruz et al., 2024; Gerbino et al., 2018; Oberle et al., 2022), yet its relevance to academic success in emerging adulthood remains unclear. Guided by a Positive Youth Development (PYD) framework, the present study sought to address gaps in emerging adulthood research by examining the academic relevance of prosocial behavior while accounting for influential developmental assets and testing its independent contribution to academic achievement. Undergraduate students (N = 501) completed a cross-sectional self-report survey assessing prosocial behavior, self-control, dutifulness, sociability, and cumulative grade …

Wattage- And Composition-Dependent Ocular Surface Toxicity: An In Vitro Study On E-Cigarette Aerosol Exposure In Human Corneal Epithelial Cells, Tzu-Ling Lin

Masters Theses

As electronic cigarette consumption continues to escalate globally, its impact on non-respiratory mucosal surfaces, particularly the ocular surface, remains largely understudied. This study investigated the toxicological effects of e-cigarette aerosols using a human corneal epithelial cell (HCE-2) model. Our findings reveal that aerosol exposure induces a significant, dose-dependent reduction in cell viability, exacerbated by higher device wattage and specific flavor agents such as watermelon. Exposure was found to trigger intracellular oxidative stress and the activation of apoptotic pathways, leading to programmed cell death. Furthermore, the upregulation of proinflammatory cytokines suggests that vaping may predispose users to chronic inflammatory conditions of …

A Real-Time Autonomous Mobile Robotic System For Crack Detection And 3d Laser Profiling In Construction Using Two-Stage Deep Learning, Emmanuella Ogun

College of Graduate Studies: Theses & Dissertations

This thesis presents an autonomous mobile robotic system that integrates real-time visual crack detection with laser-based three-dimensional profiling for building inspection. The system coordinates SLAM-based navigation, deep learning perception, and manipulator-guided measurement within a unified ROS 2 framework, enabling scan-on-demand workflows where laser profiling occurs selectively at visually detected defect locations. The detection pipeline employs a two-stage architecture combining U-Net semantic segmentation with Pix2Pix residual refinement, achieving 73.9% mean intersection-over-union and 76.4% F1-score on the CrackSeg9k benchmark while maintaining 16 frames-per-second real-time throughput. Real-world validation demonstrated 95% detection success on 80 campus images under challenging conditions. The profiling subsystem utilizes …

Examining Firefighter Perceptions Of Stress And Recovery Across A Shift And Engagement In Recovery Activities, Nathan T. Ebersole

College of Graduate Studies: Theses & Dissertations

The occupational demands of firefighting, such as fire suppression and rescue tasks, working in hazardous conditions, inconsistent sleep patterns, and exposure to traumatic events, can lead to work-related injuries, burnout, and feelings of isolation. To date, there is limited research on the impact of a single work-shift on firefighter perceptions of stress and recovery and the recovery activities that may influence these perceptions. Thus, the purpose of this study was to examine the effect of a single work-shift on firefighter perceptions of stress and recovery status as well as the recovery activities firefighters choose to engage in. Forty-three firefighters across …

Professional Learning Community Implementation And Perceptions Of Influence On School Culture, Herbert L. Chambers Jr.

College of Graduate Studies: Theses & Dissertations

As school leaders strive to achieve educational success at all levels in schools, this research provided educational professionals with feedback on how the implementation of professional learning communities (PLCs) is perceived as influencing school culture. The purpose of this non-experimental quantitative survey design was to examine how educators perceived that school culture is influenced by the practice of PLCs. Descriptive statistics were calculated for 57 survey items. This research design provided the perceptions of school leaders, teachers, and support staff at the elementary, middle, and high school levels based on five identified dimensions of the Professional Learning Community Assessment – …

"Spectrum", Mackinzey H. Critzer

College of Graduate Studies: Theses & Dissertations

These body of works explores themes centered around ASD/Autism Spectrum Disorder, including symptoms involved, my personal views/experiences of it, social issues, and other related topics. My work consists of various mediums, digital pieces/prints and physical installations that involve bright color tones, human/humanoid figures, and various symbols.

I Am Because We Are: A Narrative Inquiry Of Waiver Teachers’ Sense Of Belonging In Title I High Schools, Bernard Young

College of Graduate Studies: Theses & Dissertations

This qualitative narrative inquiry examined how former waiver teachers in low-performing Title I high schools in Georgia experienced a sense of belonging within their school communities and how that sense of belonging influenced their engagement in professional learning and their perceived effectiveness in supporting student achievement. Grounded in the Belongingness Hypothesis and guided by narrative inquiry methodology, the study framed participants’ experiences through the Bildungsroman structure to explore their journeys of professional becoming. Data were collected using a life-story interview protocol that combined open-ended narrative invitations with responsive follow-up questioning and were analyzed through a multi-phase narrative inquiry process informed …

Misinformation, Disinformation, And More, Rebecca Kyser

Surviving the Stacks Comic

No abstract provided.

Prevalence Of Dementia In Selected Middle East And North Africa (Mena) Countries: A Systematic Review And Meta-Analysis, Mohsen Sedighi, Mohammad Hasan Shahabi, Alireza Amanollahi, Khurshid Alam, Soudabeh Shemehsavar, Zahra Shirzadi, Serena Sabatini, Ahmad R. Khatoonabadi, Matthew Prina, Akram A. Hosseini, Claire V. Burley, Jennifer Dunne, Simin Mahinrad, Iman Dajani, Ralph N. Martins, Blossom C.M. Stephan, Ali Chaari, Hamid R. Sohrabi

Research outputs 2022 to 2026

Data on dementia epidemiology in the Middle East and North Africa (MENA) region is limited. This systematic review and meta-analysis examined dementia prevalence across MENA. Databases were searched up to October 2024. Analyses were stratified by country and sex. Pooled prevalence was estimated using a random-effects model with a 95% confidence interval (CI). Fifty-two studies on the selected countries met inclusion criteria, covering 87,219 individuals with dementia from a total population of 1,045,908. The pooled prevalence was 12.16% (95% CI: 9.61–14.96) for the region and the Israel had the highest prevalence (17.00%), followed by Iran (13.20%), Turkey (11.40%), Saudi Arabia …

Intravenous Infusion Of Nicotinamide Adenine Dinucleotide (Nad+) Versus Nicotinamide Riboside (Nr): A Retrospective Tolerability Pilot Study In A Real-World Setting, Kirsten Reyna, Greer Heinzen, Nikita Patel, Marie Ritter, Alexandra Siojo, Henry Legere, Rachele Pojednic

Research outputs 2022 to 2026

Background: Nicotinamide adenine dinucleotide (NAD⁺) is a cofactor for NAD⁺-dependent enzymes that regulate DNA repair, cellular metabolism, and immune function. Supplementation with NAD⁺ and its precursors is commonly used to prevent age-related disease and extend healthspan. Commercial clinical and wellness settings increasingly provide intravenous (IV) NAD⁺ and nicotinamide riboside (NR) despite limited evaluation of safety and effectiveness. These considerations are important, as NAD⁺ and its precursors differ in reported side effects, cellular uptake, and metabolism. This study sought to compare commercially administered NAD⁺ IV and NR IV in humans by evaluating infusion …

Sustainable Healthcare In Action: Six Practice Changes That Make A Difference, Christine Catling, Carol Crevacore, Melisa Young, Wayne Varndell, Jack Cornish, Sue Sheppard-Law, Elaine Correia Moll

Research outputs 2022 to 2026

Problem: Planetary health, linking the well-being of human populations with the stability of Earth's natural systems, is increasingly recognised as essential for all organisations. Healthcare is a major contributor to environmental harm, responsible for an estimated 4.4% of global net emissions. As a result, healthcare workers have an important role in driving sustainable, low-waste practices within clinical settings. Aim: This paper outlines six practical, evidence-informed changes that can be introduced within healthcare organisations: adopting reusable tourniquets, reducing unnecessary glove use, recycling medication blister packs, promoting reusable nappies, using reusable or compostable blueys, and reintroducing stainless steel holloware. Discussion: These examples …

Review Of Outcomes: Quality Improvement Of Upper-Extremity Necrotizing Soft Tissue Infections, Cailey A. England Bs, Ryan A. Reinhart Bs, Tien Do Do, Maame A. Effirim Bs, Dylan Bezzini Md

Summer Research Program Abstracts

No abstract provided.

The Relationship Between Functional Measures And Patient Reported Outcomes In Adult Spine Patients, River M. Tomlinson, Eric Klineberg, Jacob Jelmini, Nicole Baker

Summer Research Program Abstracts

No abstract provided.

Use Of Sonorheometry To Treat Trauma-Induced Coagulopathy, Dawson L. Weiss, Gabrielle E. Hatton, Miranda E. Wood, Oscar I. Estrada Munoz, David H. Kim, John A. Harvin

Summer Research Program Abstracts

No abstract provided.

Women In Science: A Theoretical, Historical, And Creative Work, Stephen M. Devito

Antioch University Dissertations & Theses

This creative dissertation investigates the barriers that patriarchy has historically created for women scientists as they pursue scientific discovery. It also examines theater as a critical and creative practice for challenging the patriarchal system. To contextualize this inquiry, the study reviews literature on women scientists whose significant contributions were historically minimized, overlooked, or neglected. Additionally, multiple plays, movies, and creative theatrical works are discussed in the literature review, with particular emphasis on different styles of using theater to illuminate the achievements of women scientists. The creative component of this dissertation is an original musical play that explores Albert Einstein’s relationship …

We’Re The Aunties Now: Intersections Of Mourning Practices, Intergenerational Trauma, And Matrilineal Responsibility In Oneida Life, Marena Bridges

Antioch University Dissertations & Theses

This dissertation examines how Oneida and broader Haudenosaunee mourning practices, as I have lived and understood them, shape grief, healing, and matrilineal responsibility in my family. Using Indigenous autoethnography and storywork, I first present a crafted narrative, then return to that narrative through reflexive thematic analysis. The analysis identifies patterned meanings in how grief is structured, shared, and carried across closely stacked deaths in the maternal line. Mourning practices function as community infrastructure that organizes time, redistributes labor, transmits knowledge, and sustains continuing bonds with the dead. At the same time, repeated loss produces a form of matriarchal ascension, concentrating …

Octavia E. Butler's Healing Heroines: An Exploration Of Black Girl Magic In The Patternist Series, Monique Skinner

Antioch University Dissertations & Theses

This study explores the concept of healing as Black Girl Magic in the five novels that make up Octavia E. Butler’s Patternist series. Through textual analysis backed in Afrofuturist theory the study answers the questions: How does Butler depict Black women as healers in the Patternist series? and What is her vision of Black women in the Afrofuture? On a deeper level, the study uses character analysis to examine the literary trope of the Black woman healer and how her magical power translates as literal Black Girl Magic. Through a journey of speculative literary discovery, we uncover the archetypes of …

Emotionally Healthy Black Men: Guidelines For Supporting Mental Health Treatment For Black Men In Ohio, Eira Nichell Yates

Antioch University Dissertations & Theses

This study examines the barriers that prevent Black men in Ohio from seeking treatment for depression and other mental health conditions and explores strategies to improve engagement and outcomes. Although depression is the most prevalent mental health disorder in the United States, it remains underdiagnosed and undertreated among Black men, contributing to persistent mental health disparities. The limited body of research addressing help-seeking behaviors within this population necessitated the use of a Delphi methodology to obtain expert consensus on key challenges and promising practices. A panel of subject-matter experts in mental health, social services, and culturally responsive care participated in …

The Phenomenon Of Church Growth Through Authenticity: How African American Gen Z Christians Are Sharing The Gospel Of Jesus Christ Without The Program Structure Of The Black Baptist Church, Devin E. West

Antioch University Dissertations & Theses

This dissertation examines the perspectives of Black Generation Z Christians regarding factors within the Black Baptist church that may limit their full engagement. In this study, the Black Baptist church refers to congregations with predominantly Black membership led by Black pastors. Generation Z, born between 1997 and 2012, is forming its religious identity within a rapidly changing cultural and institutional environment. Historically, the Black Church has served as a central institution in African American communities, functioning as a place of worship as well as a source of social support, leadership development, identity formation, and justice advocacy (Lincoln & Mamiya, 1990). …

Building A Digital Altar For The Justice-Centered Torch-Bearers: The Role Of Digital Networks In Supporting Contemporary Racial Justice Activists Through Contemplative Practices, Renée L. Bradford

Antioch University Dissertations & Theses

This mixed-methods study aimed to identify factors critical in building a digital support network employing contemplative practices to support activists engaging in racial justice work in the United States. The research question that guided this study was: What factors do racial justice activists regard as critical in building a digital support network employing contemplative practices? The study’s importance lies in addressing the evolving landscape of digital activism while honoring the spiritual and relational foundations that have historically sustained social justice movements, particularly as contemporary activists navigate new technological tools while seeking to maintain authentic connection and contemplative grounding. Key findings …

Through The Eyes Of A Daughter: Blues City Cultural Center And The Black Arts Movement, Ayana Williams

Antioch University Dissertations & Theses

This creative dissertation examines the Blues City Cultural Center (BCCC) as a living continuation of the Black Arts Movement in the American South. Founded in Memphis, Tennessee, in 1979 by Deborah Frazier and Levi Frazier, Jr., BCCC emerged from the cultural and political momentum of the Black Arts and Black Power Movements and continues to sustain their principles through original theater, community-based arts education, and grassroots cultural organizing. Challenging the notion that the Black Arts Movement is a concluded historical period, this study argues that the movement remains ongoing, adaptive, and deeply embedded within Southern Black communities. Using a creative …

Navigating Financial Futures: A Case Study Of A Targeted Financial Literacy Program For African American College Students, Michael L. James

Antioch University Dissertations & Theses

This dissertation presents a qualitative analysis of a targeted financial literacy program designed for African American college students. The dissertation examined how African American college students describe and make meaning of their participation in a targeted financial literacy program, particularly in relation to the program’s structure, content, and delivery. Despite growing interest in financial literacy education, interventions that acknowledge the persistent wealth gap and systemic financial inequities faced by African Americans remain underexplored. Employing a case study research method within a program understanding framework, this study investigated a program at Historically Black Colleges and Universities (HBCUs). Findings reveal that the …

The Efficacy Of International Conflict Feminism In Postconflict Peacebuilding: Learning From The Lived Experiences Of Liberian Women Through A Decolonial Lens, Kristen N. Mcnutt

Antioch University Dissertations & Theses

Focusing on Liberia, this study investigates the efficacy of governance feminism (GF) and international conflict feminism (ICF) in postconflict liberal peacebuilding, specifically analyzing United Nations Security Council Resolution 1325 and the Women, Peace, and Security (WPS) agenda to reveal critical gaps between policy narratives and the lived realities of Liberian women. Grounded in decolonial feminism and the coloniality of gender and peace frameworks, the research integrates ideographic narrative analysis of UN Women and Liberian government policy reports, a day-in-the-life study with 13 Liberian women, and surveys and interviews with multilevel actors across international organizations, government, and grassroots organizations, guided by …

Navigating An Uncharted Path: Chief Diversity Officer Challenges In Creating And Implementing A Dei Strategy Plan Within Major Hospital Systems, Diane Shines Mcdaniel

Antioch University Dissertations & Theses

This qualitative phenomenological study investigated the major challenges Chief Diversity Officers (CDOs) face when creating and implementing DEI strategy plans within major hospital systems in the United States. The study was guided by one research question: What are the major challenges that Chief Diversity Officers face in creating and implementing a DEI strategy plan within major U.S. hospital systems? A phenomenological design was used to examine the challenges of six Chief Diversity Officers serving in major U.S. hospitals as they led DEI strategy planning and implementation. Data were generated through semi-structured interviews consisting of eight open-ended questions designed to elicit …