Digital Commons Network^™

Simulation And Characterization Of Fuel Cell System Incorporated Internet Of Things, Ahmad N. Alhjouj

Mechanical Engineering Theses

Small air-cooled proton exchange membrane fuel cell (PEMFC) systems are increasingly relevant for portable and distributed applications, yet practical modeling and monitoring methods remain limited: high-fidelity physics-based models are too costly for real-time use, while purely data-driven models discard physical interpretability. This thesis develops an experimentally grounded gray-box framework for the characterization, reduced-order modeling, and IoT-enabled monitoring of a small hydrogen PEMFC system. A low-order nonlinear state-space model couples an electrochemical voltage layer to a lumped thermal layer, with parameters identified in stages using self-adaptive differential evolution. Identifiability analysis shows that static loss parameters are well constrained, while dynamic parameters …

Bridging The Gap In Patient Attendance: A Dnp-Led Quality Improvement Project To Reduce No-Show Rate By Implementing Text Message Reminders, Charles D. Rogers

Master's Theses or Doctor of Nursing Practice

Missed medical appointments contribute to revenue loss, workflow inefficiencies, increased staff burden, and reduced patient access to care in primary care settings. This Doctor of Nursing Practice (DNP) quality improvement project evaluated the impact of an automated text message (SMS) reminder system on no-show rates in a privately owned, medium-sized family practice in a rural setting, aiming to reduce the baseline no-show rate of 11.4% to 10% or less. Guided by the Model for Improvement and the Plan-Do-Study-Act (PDSA) framework, automated SMS reminders were sent 48 hours prior to scheduled appointments. Existing 24-hour phone call reminders were maintained. Formative assessments …

The Impact Of Somali Parental Involvement On Elementary Education In Minnesota: Opportunities And Challenges, Abdiqani Abdullahi Elmi

All Electronic Theses and Dissertations

Abstract This qualitative study examines the challenges faced by Somali-American parents in Minnesota regarding involvement in their children's education, particularly during elementary school. The elementary level is a critical stage for students' learning and a foundational pillar for both academic development and social integration, making parental involvement during this stage especially important. However, immigrant families, specifically Somali-Americans, face significant challenges that impede their ability to participate actively in their children's educational journey. This qualitative phenomenological research investigated barriers that might stem from limited formal education, low English proficiency, cultural, linguistic, and socioeconomic challenges. The methodology used in this research is …

Barriers To Creativity: Addressing Anxiety And Self-Doubt In Secondary Visual Arts Students, Wenlai Fang

All Electronic Theses and Dissertations

Adolescence is a crucial stage for self-development and creativity development. During this period, middle school students will experience creative anxiety and self-doubt about creative expression in multiple dimensions. To help students manage the uncertainties inherent in the creative process and build confidence and resilience, this study, based on Rhodes' (1961) 4P creativity framework (Person, Process, Press, and Product), systematically investigated the obstacles to the development of adolescent creativity and identified teaching intervention measures for fostering a supportive creativity ecosystem.
This study demonstrated that the development of adolescent creativity is a result of multi-faceted and multi-dimensional interactions from the 4P creativity …

Examining Obsessive-Compulsive Symptomatology And Maternal Functioning During The Postpartum Period: Implications For Disclosure And Assessment, Meghan Collins

PCOM Psychology Dissertations

Maternal mental health is a significant global health concern, with nearly one in five new mothers experiencing a mental health disorder during the perinatal period. Timely screening, assessment, and treatment are critical for the well-being of both mother and infant, given the potential adverse effects of unaddressed mental health concerns. While much of the existing literature has focused on perinatal depression and anxiety, research specifically examining obsessive-compulsive symptoms and unwanted or intrusive thoughts remains limited. The present study investigated the relationship between obsessive-compulsive symptoms and maternal functioning, as well as experiences related to the assessment and disclosure of intrusive thoughts. …

The Mistaken Turn To Church Autonomy, Peter J. Smith, Robert W. Tuttle

GW Law Faculty Publications & Other Works

With increasing frequency and intensity, courts and commentators have advanced a doctrine of church autonomy that shields matters of internal church affairs from judicial scrutiny. Judges and scholars have invoked the doctrine in cases that involve disputes over property, employment, and governance of religious institutions. When applied, the doctrine ordinarily requires the dismissal of suits by aggrieved employees, congregants, or affiliated religious entities, thereby leaving employment and property disputes to unreviewable resolution by church authorities.

The turn to church autonomy is a regrettable mistake that contributes to the unjustifiable expansion of free exercise protections for religion at the expense of …

Ele 4880 : Diagnostic And Prescriptive Reading Instruction, Teaching, Learning, And Foundations

Approved Course Proposals

No abstract provided.

Cds 2200 : Language Acquisition, Cds

Approved Course Proposals

No abstract provided.

Eng 3401 : Methods Of Teaching Composition In Middle And Secondary Schools, English

Approved Course Proposals

No abstract provided.

Wlf 1101: Beginning French I, World Languages And Cultures

Approved Course Proposals

No abstract provided.

From Barriers To Breakthroughs: Academic Advising And Resilience Among Online Social Work Students In Appalachia, Jessica Williamson

DSW Capstone Projects

This Doctor of Social Work (DSW) capstone project examines how academic advising can be leveraged as a resilience-informed intervention to support persistence among online social work students in the Appalachian region. Although online education has expanded access to higher education, Appalachian students continue to face significant structural, technological, and cultural barriers, including limited broadband access, financial instability, geographic isolation, and norms that emphasize self-reliance. These challenges contribute to lower retention and degree-completion rates, highlighting the need for intentional, context-responsive support strategies. This project integrates three scholarly products: a systematic literature review (SLR), a conceptual paper, and a practice application paper. …

Effects Of Tech-Based Self-Monitoring And An Interdependent Group Contingency On Group Engagement, Ariana K. Hefter

Theses and Dissertations--Early Childhood, Special Education, and Counselor Education

This study evaluated the effects of a class-wide self-monitoring (SM) intervention delivered via the I-Connect app and paired with an interdependent group contingency, on whole-group engagement in a general fourth grade classroom. Participants included 23 students during a 30-min instructional period. The researcher measured group engagement using momentary time sampling (MTS) with planned activity check (PLACHECK) with a fixed rotation schedule in 30-s intervals and recorded the percentage of students on-task per session. A withdrawal (ABAB) design was used to examine the effects across the baseline and intervention phases. Results indicated a slight increase in group engagement during the intervention …

Simulating Social Attitudes With Llms: Accuracy, Demographic Effects, And Refusal Behavior In The Sensitive Domain Of Suicide Prevention, Cristina J. Perez, Michael P. Vasquez Jr., Philippe J. Giabbanelli, Patrick Y. Wu

VMASC Publications

Large language models (LLMs) are increasingly used to simulate public opinion, yet their validity in sensitive policy domains remains underexplored. We evaluate whether LLMs can reproduce attitudes toward suicide prevention policies using 32 questions drawn from seven nationally representative U.S. surveys (2023-2025). We systematically vary demographic conditioning (race/ethnicity, gender, age, education, income, party), prompt framing (direct elicitation, respondent embodiment, specialist embodiment), and model architecture (GPT-5 Nano, DeepSeek V3.2, Meta Llama 3.1 8B, Mistral Small 24B). Across 811,560 prompts, the mean absolute error—the average gap between predicted and human response distributions—is 23 percentage points. We also find that LLM responses to …

An Exploration Of Geomagnetically Induced Currents And The Accessibility Of Geomagnetic Data Collection, Richard Le

Physics Theses

Geomagnetically Induced Currents (GICs) are electrical currents induced in long grounded conductors during geomagnetic disturbances. They represent one of the primary space weather hazards to critical infrastructure, particularly high-voltage power transmission systems and other grounded conductor networks such as pipelines. As modern society becomes more dependent on these systems, understanding and mitigating the impacts of space weather has become increasingly important. This thesis examines the physical mechanisms that generate GICs, from the interaction of the solar wind with Earth’s Magnetosphere to Magnetosphere-Ionosphere-Thermosphere (MIT) coupling and the current systems that drive geomagnetic disturbances (GMDs). Case studies from Zimbabwe and Finland illustrate …

Computational Study Of Rotating Detonation Combustors, Aditya Balasubramaniam

Mechanical and Aerospace Engineering Theses

Rotating detonation combustors (RDCs) are pressure-gain combustion devices that sustain one or more continuously rotating detonation waves, offering potential thermodynamic and performance advantages over conventional deflagration-based systems. Their behavior depends strongly on combustor geometry and operating conditions. Understanding these effects is therefore essential for the design and optimization of practical RDCs. Accordingly, this thesis numerically investigates annular RDCs with two primary objectives: (1) to evaluate the effects of propellant mass flux and (2) to assess the influence of annular width on detonation-wave dynamics and combustor performance.

A finite-volume framework is used to solve the compressible reactive Euler equations with hydrogen–air …

Scalable Quantum Network Routing Through Reinforcement Learning And Resource Optimization, Tasdiqul Islam

Computer Science and Engineering Dissertations

Long-distance quantum communication depends on distributing high-delity entanglement across quantum repeaters. Entangled states are fragile: they decohere in memory, are consumed when used, and lose delity after each swap. Quantum routing therefore diers from classical routing: an algorithm must decide not only the path, but when to generate, store, swap, and consume entanglement before they lose their usefulness. This dissertation studies scalable resource allocation and routing for quantum networks under delity, memory, and concurrency constraints. It rst addresses re- peater deployment with heuristics that nd near-optimal locations while cutting com- putation from days to seconds versus integer linear programming (ILP). …

Early Detection And Objective Assessment Of Neonatal Hypoxic-Ischemic Encephalopathy Severity, Soheila Norasteh

Bioengineering Dissertations

Hypoxic–ischemic encephalopathy (HIE) is a neonatal brain injury caused by reduced oxygen and blood flow to the brain around the time of birth. It remains a major cause of neonatal mortality and long-term neurodevelopmental impairment worldwide. Therapeutic hypothermia is the standard treatment for moderate-to severe HIE and improves outcomes when initiated within the first six hours of life. Therefore, accurate assessment of injury severity during this period is essential. Cur rently, HIE severity is determined primarily through neurological examination and classified as mild, moderate, or severe. However, these examinations are subjective, cannot provide continuous monitoring of brain function, and may …

Reliable And Label-Efficient Learning For Open-World Visual Perception And Robot Learning Under Uncertainty, Zongyao Lyu

Computer Science and Engineering Dissertations

Modern learning systems deployed in open-world environments must make reliable decisions despite predictive uncertainty, previously unseen classes, limited annotations, and distribution shifts. This dissertation develops methods for reliable and label-efficient learning in visual perception and robot control.

First, this work studies uncertainty in object detection by representing semantic and spatial predictions probabilistically. A deep-ensemble framework aggregates detections into class-probability distributions and probabilistic bounding boxes, while a subsequent extension combines deep ensembles with Monte Carlo dropout to further investigate predictive uncertainty. Second, this dissertation addresses open-set recognition, where classes absent during training may appear at inference time. An empirical study shows …

Advancing Hate Speech Detection: Binary And Multiclass Approaches From Traditional Methods To Parameter-Efficient And Ontology-Guided Language Models, Mahmoud Abusaqer

Graduate Theses/Dissertations

The widespread proliferation of hate speech on social media platforms poses significant challenges for content moderation and user safety, requiring automated systems that are simultaneously accurate, efficient, and capable of fine-grained distinctions. This thesis investigates hate speech detection through five published manuscripts organized into two complementary threads: binary detection (hateful vs. non-hateful) and multiclass detection across demographic targeting categories. The binary thread progresses from a broad 38-model baseline spanning traditional machine learning, deep learning, and transformer architectures (where RoBERTa reaches 91.48% accuracy and CatBoost remains competitive at 88.60%) to parameter-efficient adaptation, in which Low-Rank Adaptation (LoRA) of large language models …

Constraining The Tectono-Climatic Evolution Of The Northern Rocky Mountains: Insights From Volcanic Glass, Leaf Water, And Leaf Wax Hydrogen Isotopes, Rijumon Nandy

Earth & Environmental Sciences Dissertations

The Eocene-Oligocene period in the North American Cordillera represents a period of great intrigue with complex interactions among tectonics, climate, and surface processes. Although this period is generally associated with synorogenic extension associated with gravitational collapse of the Cordillera, the paleotopographic history remains debated. Existing studies offer conflicting interpretations, suggesting either sustained elevations or modest uplift during this time. Notably, recent reconstructions based on volcanic glass δD values have proposed renewed uplift during the early Oligocene, which needs to be tested with a more extensive and robust dataset. Concurrently, global cooling and aridification during this interval may have been amplified …

Associations Between Cognitive Scripts Of Insecure And Anomalous Attachment And Psychopathology Symptoms In A Normative-Risk Community Sample, Andrea “Andie” Youniss M.S.

Selected Full Text Dissertations, 2011-

Adult insecure and disorganized attachment representations have been shown to be consistently associated with internalizing and externalizing symptoms in adulthood. A recently validated coding system (Groh & Haydon, 2024) was developed to assess insecure (i.e., deactivating and hyperactivating) and disorganized (i.e., anomalous) scripted attachment representations via the Attachment Script Assessment (ASA; Waters & Waters, 2006) – a word prompt task traditionally designed to assess secure base script knowledge. Deactivating scripts reflect minimized or ignored attachment-relevant problems; hyperactivating scripts entail exacerbated attachment-relevant issues; and scripts with anomalous content contain disorganized or contradictory attachment-relevant concerns that shape how caregiving interactions are expected …

Culturally Responsive Dialectical Behavior Therapy With Chinese Sexual And Gender Minority Individuals: A Qualitative Study, Weiyi Liao M.S.

Selected Full Text Dissertations, 2011-

Professional guidelines emphasize the importance of adapting evidence-based treatments to the cultural and contextual needs of minoritized populations. Although substantial research has examined lesbian, gay, bisexual, transgender, and queer (LGBTQ+) mental health, comparatively little is known about the psychotherapy experiences of Chinese sexual and gender minority individuals or how dialectical behavior therapy (DBT) may be delivered responsively with this population. DBT is an evidence-based treatment for emotion dysregulation, self-harm, and suicidal behavior that explicitly addresses the effects of invalidating environments. Because Chinese cultural contexts and LGBTQ-related minority stress may both shape emotional expression, help-seeking, and treatment experiences, this qualitative study …

Post-Boom(Er) Maximalism In The Americas: Valeria Luiselli's “Lost Children Archive”, Antonio Barrenechea

English & Linguistics Articles

This article poses an alternative non-Anglophone starting point for twenty-first century maximalism through the Latin American Boom and “la novela total” that is its crowning achievement. Among such works are Gabriel García Márquez’s One Hundred Years of Solitude (1967) and Carlos Fuentes’s Terra Nostra (1975). The term’s 1960s conception by Peruvian author Mario Vargas Llosa predates Thomas Pynchon as figurehead for maximalist theorizing within First World academic environments that control the conversation. Furthermore, I examine Mexican author Valeria Luiselli’s Lost Children Archive (2019) as a case of post-Boom(er) maximalism that differs from the big novels of the Latin American luminaries. …

Geography Of Erasure: Manufactured Housing, Heat Exposure, And State Neglect In Florida, Gianna M. Hutton

Pomona Senior Theses

This thesis examines Florida's manufactured housing communities through the intersecting frameworks of energy justice, critical heat studies, and housing displacement scholarship, centering how structural, political, and economic forces shape uneven exposure to thermal insecurity and housing precarity. Using a mixed-methods approach combining statistical regression analysis of American Community Survey microdata (2019-2023) and spatial case study of Miami-Dade County's heat governance and The Li'l Abner Mobile Home Community’s displacement, this research investigates how manufactured housing residents experience compounded exclusions across energy systems, urban heat governance, and housing security. The findings reveal that manufactured home residents face a 26% higher energy burden …

Place-Branding In The Japanese Agricultural Industry: A Discourse Analysis Of National, Prefectural, Municipal, And Producer Perspectives, Miyu L. Owada

Pomona Senior Theses

This essay is a case study of place-based agricultural branding in Japan, particularly in the sub-urban context of Mitaka City, Tokyo. Shifting the focus from rural revitalization models typically studied in this field, this study brings sub-urban landscapes into the conversation. Although existing studies assume a top-down policy is implemented for agricultural branding in Japan, the study assesses to what extent this structure holds true for the Mitaka context, comparing narratives across four tiers: the national Ministry of Agriculture, Forestry, and Fisheries (MAFF), the prefectural Tokyo Metropolitan Government (TMG), the municipal Mitaka City and Japan Agricultural Cooperatives (JA) Tokyo Musashi …

An Ideological Target Through The Archaeological Archive: The Islamic State’S Destruction Of Palmyra And Its Impact On Local Syrian Identity, Tristen A. Leone

Pomona Senior Theses

This paper investigates how Palmyra's multicultural archaeological archive incited ISIS's destruction of the site during the Syrian Civil War through an analysis of sepulchral and religious architectural structures and onomastic practices. In contributing the cultural heritage scholarship, this paper places the motives of Islamic extremist groups in conversation with intellectual discourse around the multicultural identities of the Ancient Near East during the Roman Imperial Period. Further, through anthropological methodological frameworks and the photographic archive of excavation efforts at Palmyra, I aim to center modern local communities' experiences of living on and near an archaeological site like Palmyra. In consulting modern …

Art Heals Chicago: Murals On The South Side Of Xicágo, Brenda Rodriguez

Pomona Senior Theses

Mural making as a collective art form is a tool for healing, resistance, and cultural pride in Black and Brown communities. With my focus being on Mexican American communities on the South Side of Chicago, specifically Pilsen. I make ties to indigenous motifs and the history of Mexican Muralism to show how it has evolved and how murals in the 1960s and 70s were used for healing from violence and the revolution. Murals that include images that reference the Mesoamerican past and preconquest life are a powerful way of reclaiming one’s identity and asserting one's indigeneity in the present and …

Accelerating Ai Innovation In Healthcare: Real-World Clinical Research Applications On The Mayo Clinic Platform, Yue Yu, Xinyue Hu, Sivaraman Rajaganapathy, Jingna Feng, Ahmed Abdelhameed, Xiaodi Li, Jianfu Li, Xiaoke Liu, Liu Yang, Nilüfer Ertekin-Taner, Phil Fiero, Soulmaz Boroumand, Richard Larsen, Maneesh Goyal, Clark C Otley, Nansu Zong, Vijay H Shah, John D Halamka, Cui Tao

Faculty, Staff and Student Publications

Artificial intelligence (AI) holds promise for healthcare, but real-world implementation remains difficult. The Mayo clinic platform (MCP) addresses this by providing scalable, multi-institutional, de-identified data and analytical tools. Through four research projects, we demonstrate MCP's ability to support efficient cohort identification, AI model development, and real-world evidence generation. MCP enables broader accessibility and standardization compared to institutional EHRs, positioning it as a powerful platform for advancing translational research and precision medicine.

The Ai-Native Health Science Institution Innovation Theater Vs. Structural Redesign, Jiajie Zhang, Martin J Citardi, Xiaoqian Jiang, Sean Savitz

Faculty, Staff and Student Publications

Academic health institutions face a new constraint: cognitive labor. Many adopt AI through additive initiatives that risk becoming "innovation theater"-visible activity without structural change. We argue this reflects a mismatch between rapid AI advances and slower institutional evolution. AI-native institutions treat AI as infrastructure, requiring governance, shared platforms, and workforce readiness. The challenge is not adoption but redesign; those that fail risk widening gaps and accelerating irrelevance.

Integrating Perspectives Of People With Aphasia: A Holistic Approach To Community Aphasia Groups Within An Intensive Comprehensive Aphasia Program, Mckinlee A. Mihelish

Graduate Student Theses, Dissertations, & Professional Papers

Introduction: People with aphasia (PWA) experience chronic communication deficits that impact daily life. Community Aphasia Groups (CAGs) are commonly used to address these challenges and have demonstrated psychosocial and communicative benefits; however, they lack standardized structure and are implemented with variability across settings. Additionally, much of the existing research focuses on group-level outcomes rather than participant-driven priorities, limiting clinicians’ ability to tailor interventions. This study examined what PWA want from CAG participation and how these priorities may change over time.

Methods: This quantitative study investigated priority changes among PWA participating in a CAG within a summer 2025 Intensive Comprehensive Aphasia …