Digital Commons Network^™

An Integrated Data-Driven Framework For Coupling Upland Process Models And In-Stream Hydraulic Geometry Estimation, Ahmet Nazim Sahin

Electronic Theses and Dissertations

Large-scale watershed simulation platforms, such as the Agricultural Integrated Management System (AIMS), are essential for water resource management but are often limited by a critical lack of detailed in-stream channel data required for comprehensive river analysis. This study addresses this gap by developing and validating an integrated, data-driven framework that couples upland process models with in-stream hydraulic geometry estimation at a national scale. The research was executed through two complementary thrusts founded on the National Hydrography Dataset Plus (NHDPlus).

First, a geospatial workflow was developed to create NHDPlus-driven input files for the Annualized Agricultural Non-Point Source (AnnAGNPS) model—a tool for …

Beyond Guns Vs. Butter: Gendered Dynamics In Security Policy Preferences, Elaine Elizabeth Tagert

Electronic Theses and Dissertations

This dissertation challenges the foundational assumptions of the “guns versus butter” debate by recentering gender, insecurity, and state legitimacy in the analysis of public opinion. Drawing on over 300,000 individual responses across 80 countries, and original survey data from post-conflict Colombia, it demonstrates that the commonly held belief that women are more likely to prioritize welfare over security is both context-dependent and empirically unstable. Rather than reflecting innate preferences, gendered policy attitudes emerge from lived experiences of violence, inequality, and institutional trust.

The first empirical chapter reveals a striking reversal of conventional expectations in the Global South: in regions where …

Deep Learning Approaches For Predicting Strain Energy In Heterogeneous Materials, Junesh Gautam

Electronic Theses and Dissertations

Finite Element Analysis (FEA) faces computational challenges when analyzing nonlinear and heterogeneous materials. Utilizing the Mechanical MNIST dataset, comprising 60,000 simulated samples of 28x28 pixel domains under large deformation, the study evaluates classical regression methods (Linear Regression, Random Forest, Gradient Boosting) and advanced deep learning architectures (Convolutional Neural Networks (CNN) and Residual Networks (ResNet)). CNN models achieved superior performance, with a Mean Squared Error (MSE) of 4.21 and an R2 value of approximately 0.982, outperforming classical regression models and slightly surpassing ResNet architectures. These deep learning methods automatically learn spatial relationships from pixel-based representations, eliminating the need for manual feature …

Strategies For Success: Developing The Hero Within To Increase Persistence Of Community College Students Returning From Academic Dismissal, Angela Cavazos

Electronic Theses and Dissertations

Students are enrolling in college at a higher rate than ever before, yet retention rates continue to be problematic for higher education institutions across the United States. Many students fail to persist beyond their first year and are often forced out due to academic difficulties. Students who return from academic dismissal are likely to be dismissed again. This quasi-experimental quantitative action research study aimed to evaluate the impact that a student success intervention course designed through an asset-based positive self-leadership framework and focused on the development of psychological capital constructs of hope, efficacy, resilience, and self-efficacy (HERO) had on the …

Exploring The Perceptions Of School Leaders And Teachers Towards The Role And Value Of School Librarians, Amanda Galliton

Electronic Theses and Dissertations

This study explored the perceptions of school leaders and teachers toward the role and value of school librarians in a North Central Texas Education Service Center area. The study investigated how superintendents, principals, and teachers view the contributions of certified school librarians to student achievement and school culture, particularly in light of budget cuts and the elimination of librarian positions. Using a mixed-methods approach, this research gathered information from superintendents, principals, and teachers, using quantitative and qualitative data and then quantitizing that data. The results reveal a significant variance in perceptions among superintendents, principals, and teachers, as well as a …

Design And Optimization Of The Injection Molding Process Of Glass Fiber Reinforced Polymeric Car Fender Using Computational Simulation, Synthia Ferdouse

Electronic Theses and Dissertations

The increasing demand for lightweight and energy-efficient materials in the automotive industry has accelerated the adoption of fiber-reinforced polymer composites. This research presents the design and optimization of the injection molding process for glass fiber-reinforced polymer (GFRP) car fenders using computational simulation. The effects of various gate types and locations on key process parameters, including fiber orientation, volumetric shrinkage, shear rate, and fill time, were investigated using Finite Element Analysis (FEA), Autodesk Moldflow Insight 2024, and MATLAB-based Multi-Criteria Decision-Making (MCMD) techniques. Simulations were conducted across multiple configurations involving three, four, and five gates, with several variations in location. Among all, …

Learning Positive Deviance Techniques: How Non-Conformity To Vote-Buying Is Practiced And Its Outcomes, The Ugandan Context, Collins Kwarisima

Electronic Theses and Dissertations

This research has investigated the use of positive deviance or exemplary behavior as an innovative approach to addressing political corruption, specifically the vote-buying practice in Uganda. To understand the techniques of positive deviance in vote-buying, this study was guided by the main research question: How is non-conformity to vote-buying practiced, and what are its outcomes? Individual and focus group interviews were utilized to collect qualitative data from 40 respondents (voters and political leaders) who deter the vote-buying practice in Rukungiri District, Western Uganda. With the help of community gatekeepers, the study followed the inclusion criteria to identify voters and political …

Effect Of Six-Day Germination On Chemical Composition, Functional, And Nutritional Properties Of Pea Varieties, Hojjat Abdollahikhamene

Electronic Theses and Dissertations

Pulses, particularly peas, have long been a crucial source of protein in vegetarian and cost-effective diets worldwide. They have gained popularity in Western diets as more people turn to plant-based proteins as alternatives to animal products. Peas are known for their high protein content; however, their use in food products has been limited due to factors like poor solubility and digestibility. Germination improves the nutritional profile of peas by enhancing protein content and digestibility. The objective of this study was to determine the effects of six days of germination on the nutritional composition and functional properties of different varieties of …

Improving K-Mean Clustering: A Comparative Study Of Parallelized Version Of Modified K-Mean Algorithm For Clustering Of Satellite Images, Yuv Raj Pant

Electronic Theses and Dissertations

Efficient clustering of high-dimensional satellite image datasets remains a critical challenge, particularly due to the computational demands of spectral distance calculations, random centroid initialization, and sensitivity to outliers in conventional K-Mean algorithms. This study presents a comprehensive comparative analysis of eight parallelized variants of the K-means algorithm, designed to enhance clustering efficiency and reduce computational burden for large-scale satellite image analysis. The proposed parallelized implementations incorporate optimized centroid initialization for better starting point selection, a Dynamic K-mean sharp method to detect the outlier to improve cluster robustness, and a Nearest-Neighbor Iteration Calculation Reduction method to minimize redundant computations. These enhancements …

Modeling Fluid Flow In Complex Biological Systems: Implications For Dense Tumor Microenvironments, Metastasis, And Bone Cancer, Mohammad Mehedi Hasan Akash

Electronic Theses and Dissertations

The transport of biofluids in physiological systems plays a critical role in understanding and optimizing therapeutic interventions for diseases such as cancer and respiratory infections. This dissertation focuses on developing and validating a comprehensive computational framework for studying multiphase transport in complex biological environments. The research emphasizes the use of Computational Fluid Dynamics (CFD) to simulate and analyze plasma perfusion in solid tumors, particle deposition in respiratory airways, and fluid transport in cancer metastasis and bone cancer systems. By addressing the challenges of modeling biological transport phenomena, this work provides valuable insights into therapeutic planning and experimental validation. The study …

One Rung At A Time: Climbing The Ladder Toward Aquatic Connectivity In Eastern South Dakota, Evan Spencer

Electronic Theses and Dissertations

Roads and streams are synonymous with their connection to movement, the acquisition of resources, and as pathways to new opportunities. However, the factors that define good roads and ecologically connected streams are rarely without conflict. Road infrastructure at stream-road crossings has the potential to fragment stream networks. Tube culverts, where streams pass under the road through metal pipes, are particularly concerning for stream connectivity. Undersized, aging, or inappropriately installed culverts can develop vertical drops at the outflow due to high velocities and stream bed scouring. The outlet drop can function as a barrier, preventing the upstream movement of fish. Due …

Semantic Think-On-Graph (Semtog) : Enhancing Graphrag Through Semantic Community Detection, Sugam Mishra

Electronic Theses and Dissertations

Graph-based Retrieval-Augmented Generation (GraphRAG) enhances large language models (LLMs) by grounding their reasoning in structured knowledge graphs, making them more reliable for multi-hop reasoning and factual QA. A central mechanism in Think-on-Graph systems such as ToG[14] and FastToG[7] is community detection, which groups locally related nodes into compact subgraphs so that LLMs can reason over focused, information-rich neighborhoods instead of traversing the entire graph. However, these methods rely purely on structural connectivity, often scattering semantically related entities across different communities and weakening the evidence provided to the LLM. We propose Semantic Think-on-Graph (SemToG), a semantic-aware extension of FastToG[7] that integrates …

Fungal Biotransformation Of Thin Stillage And Soybean Hulls And Bacterial Production Of Lysine In Ethanol Industry Co-Products, Bhawana Khadka

Electronic Theses and Dissertations

Thin stillage (TS) and whole stillage (WS) are major by-products of the corn ethanol industry. These by-products are generated in large quantities and contain nutrients that remain after yeast fermentation. Current industrial utilization of these by-products involves a series of downstream processing steps such as centrifugation and evaporation, which are energy-intensive and often result in nutrient losses. Traditionally, these by-products are dried to produce distillers dried grains with solubles. In this study, microbial fermentation was investigated as an alternative bioprocessing tool to expand the utilization of these by-products. The first objective was to explore the upcycling of TS, both alone …

Formulation And Immunogenicity Of L1 Orf1 Mrna Vaccine In Mice, Raj Nandani

Electronic Theses and Dissertations

This dissertation presents the design, formulation, and immunogenicity evaluation of a novel mRNA vaccine targeting the L1 ORF1p protein, a tumor-associated antigen. The vaccine was synthesized using in vitro transcription and encapsulated in lipid nanoparticles (LNPs), with both unmodified uridine and N1-methylpseudouridine variants tested. Physicochemical characterization confirmed optimal particle size (160–220 nm), acceptable zeta potential, and encapsulation efficiency ranging from 74% to 92%, with preserved RNA integrity post-formulation. These results validate the robustness of the formulation workflow and its suitability for antigen delivery. Immunogenicity studies in C57BL/6 mice revealed modest but promising immune responses. While early activation markers (CD69) and …

The Souls Of Black Ghosts: Centering Intergenerational Trauma Of Black Americans From Harriet Tubman To Beloved, Jasmine Mccray

Electronic Theses and Dissertations

Intergenerational trauma is being debated and researched in fields such as neuroscience and sociology, and yet many question whether one can genuinely feel the negative effects of a lived experience from a distant ancestor. This project aims to raise awareness on the attempts at erasing Harriet Tubman’s heritage through scholarship on her disability, and to highlight the presence of intergenerational trauma (as defined by Dr. DeGruy’s observations in Post-Traumatic Slave Syndrome) in Toni Morrison’s Beloved. I note the ripple effects of chattel slavery in the United States seen in the consciousness and unconsciousness of Black Americans within a …

Investigating The Portrayal Of Native Americans In Florida’S K-12 Social Studies/History Textbooks: A Critical Content Analysis, Marisa Miceli Schnirman

Electronic Theses and Dissertations

Textbook bias is an enduring and contentious issue in the United States. U.S. textbooks have long been criticized for perpetuating bias and reinforcing dominant narratives that marginalize minority groups, such as members of Indigenous nations. This study confirms that biases continue to exist in textbooks and promote the harmful narrative that Indigenous peoples are people of the past. This narrative undermines the survivance (Vizenor, 1998), contributions, and very existence of Indigenous peoples. Using a critical lens, this content analysis examines the portrayal of Indigenous peoples in select fourth-grade, eighth-grade, and high school social studies and history texts used in Florida …

The Observer & The Observed, Azarakhsh Shafieikadkani

Electronic Theses and Dissertations

This thesis examines the concept of the gaze and its role in shaping identity, particularly in relation to marginalized genders, including women and non-binary individuals. Rooted in feminist and psychoanalytic theories, the research interrogates the power dynamics between the viewer and the viewed, exposing the ways in which patriarchal structures influence visual representation. Drawing from personal experiences of growing up in Iran and the complexities of immigration, the project critically engages with how societal norms manipulate identities and reinforce objectification. Through experimental photography, I distort and deconstruct the human form using materials such as hair gel on plexiglass and matte …

Fictional Prophecies: How Kazuo Ishiguro’S Never Let Me Go And Olivia Wilde’S Don’T Worry Darling Foreshadow The Threats Of Biotech And Metaverse Realities, Taylor Pack

Electronic Theses and Dissertations

This thesis intends to embrace conversations about technological advancements and create space for examining the ways in which popular technologies of the 2020s are the beginning of a dangerous future for marginalized bodies if gone unchecked and under-regulated. This paper investigates the ways in which modern forms of technology are at risk of mimicking the novel Never Let Me Go by Kazuo Ishiguro and the film Don’t Worry Darling, directed by Olivia Wilde dystopias and argues the need for more conscious consumerism of technology and media alike to acknowledge the ways in which the control of women’s bodies is a …

“This Generation Of Women Is Finished”: Misogyny As Social Bonding On Social Media And Patriarchal Constructions Of Femininity, Emma Mierzejewski

Electronic Theses and Dissertations

This thesis explores online discourse between users on social media platforms, specifically Instagram, in an effort to better understand the patriarchal influence on American social culture. Users on the platform regularly write off misogynistic comments as simply “dark humor” or an extreme expression of one’s “freedom of speech.” At the same time, supportive comments are also influenced by those same misogynistic expectations. I argue that misogynistic thinking in comments and a willingness to uphold them for social bonding provides deeper insights into our society’s attitudes towards women, their roles, and conceptions of femininity in general. I conducted a content analysis …

Human-Ai Interaction In Driving Behavior Analysis: Machine Learning And Pattern Mining For The Unobtrusive Cognitive Assessment, Sonia Moshfeghi

Electronic Theses and Dissertations

Creating unobtrusive, intelligent sensing systems that can be embedded into daily life and assess changes in the physical and cognitive functions of people has garnered significant attention. This dissertation presents a data-driven pattern recognition framework that integrates human-AI interaction and machine learning to analyze and quantify cognitive decline in older drivers based on the data stream of their driving data. This study harnesses real in-vehicle sensing data collected from +65 older drivers. Various AI-enabled data analytics modeling techniques are developed and tested to understand the driving patterns of older drivers, the relations between driving data and their cognitive functions, and …

Interleukin-1 Type I Receptor Implicated In Emergence And Severity Of Generalized Tonic-Clonic Seizures In A Transgenic Mouse Model Of Adult-Onset, Progressive Epilepsy:, Tashi Dillon

Electronic Theses and Dissertations

Interleukin-1 β (IL- 1β) is a proinflammatory cytokine with proconvulsive properties that is elevated in epilepsy. The hippocampal dentate gyrus (DG) buffers hyperexcitability, and deficits in granule neuron gating contribute to epileptogenesis. Excess brain derived neurotrophic factor (BDNF) may drive hyperexcitable circuit assembly, promoting a seizure-producing breakdown of the gating function. We use a transgenic mouse model of forebrain BDNF (TgBDNF) overexpression that exhibit spontaneous generalized tonic/ clonic seizures (GTCSs) at ~3 months, which progress as evidenced by prolonged periods of post-generalized EEG suppression (PGES). This is accompanied by hippocampal hypertrophy and brainstem cell loss. A strain globally lacking IL-1 …

Institutional Learning And International Student Enrollment: A Case Study Of Perceptions Of Practice, Debra Szabo

Electronic Theses and Dissertations

This dissertation examines the application of Peter Senge’s Learning Organization Theory at Florida Atlantic University (FAU), focusing on administrators' perceptions of institutional learning amid increasing international student enrollment. Higher education institutions must balance market-driven behaviors with collaborative learning environments as they navigate a competitive global landscape.

The study stresses the need to investigate institutional learning outcomes and the impact of rising international student enrollment on university policies, procedures, and organizational learning. It explores the relationship between espoused theories, strategic goals designated by FAU, and theories-in-action, which reflect actual practices in recruiting and supporting international students. By integrating Argyris and Schön's …

“Thank You For Hearing Me”: Listening To Stories Of Linguicism, Caroline Asher Webb

Electronic Theses and Dissertations

This dissertation examines the effects of linguicism on nonnative speakers of English who are currently studying in higher education in the United States or other English-dominant countries. Linguicism, also called linguistic discrimination, others and discriminates against people based on their oral or written language use. Rooted in master narratives of Standard English, monolingualism, and the native speaker, linguicism, unlike other forms of discrimination, such as gender or racial discrimination, is subtle and unmarked, thus permeating the consciousness of even the most well-intentioned of people.

Using a Critical Race Theory framework, the present study utilized a storytelling methodology to gather first-hand …

Amalia E Carlo (1812) By Pietro Carlo Guglielmi In Napoleonic Naples: Unearthing A Forgotten Opera, Barbara Salani

Electronic Theses and Dissertations

This dissertation offers a significant contribution to musicology, illuminating an opera lost to obscurity for over two centuries. Its reconstruction is the result of interdisciplinary research encompassing Italian socio-political history, philology, and cultural-linguistic analysis. The opera is Amalia e Carlo, a masterpiece by Pietro Carlo Guglielmi, composed in 1812, which enjoyed a brief period of success before succumbing to the shifting tides of time and political change. Its libretto and musical score were scattered and relegated to the obscurity of archives and closets in Tuscany, Naples, and Munich. The research aims to elucidate the opera's importance not only within the …

Gendered Violence And Identities: Exploring The Role Of Violence Against And Abductions Of Women In Cracking India And Lajwanti, Erin Mammel

Electronic Theses and Dissertations

This article argues that representations of women’s bodies as symbols of honor during the partition of India and Pakistan in Bapsi Sidhwa’s Cracking India and Rajinder Singh Bedi’s Lajwanti frame violence against these bodies, and forced conversions and marriages, as forms of dishonor among religious rivals within split territories, which attempt to uphold men’s nationalistic identities. Many scholars, such as Rachna Mehra and Rituparna Roy, have studied the displacement of recovered and rehabilitated women in these texts. There has been less scholarship, however, that explores gendered forms of violence with Hindu nationalist notions of masculinity. Through the lens of postcolonial …

The Single Vote: The Senators Who Acquitted Andrew Johnson, Benjamin Maxwell Cohen

Electronic Theses and Dissertations

On February 24th, 1868, the House of Representatives impeached Andrew Johnson, and in May of that same year, he would be acquitted in the United States Senate by one vote. At the center of these events were the seven Republican Senators who defected from their party and found the President not guilty. This thesis examines the conflicts between Johnson and the Radical Republicans, framing this within the broader political context of the era as the key to understanding the political nature of Johnson’s 1868 trial. This politicization culminated in the Tenure of Office Act, which was both protectionist and antagonistic …

Essays On Entrepreneurship And Government Policy, Abdul-Kadir Ameyaw

Electronic Theses and Dissertations

Government policy has long been used as a lever to stimulate entrepreneurship, yet its outcomes vary widely across contexts, prompting renewed interest in how such policies shape entrepreneurial activity. This dissertation investigates the multifaceted relationship between government policy and entrepreneurship using a two-essay framework that draws on extant literature and qualitative field data. It examines how policies not only create structural conditions but also activate symbolic mechanisms that influence individual behavior and occupational choices.

The first essay conducts a systematic review of 166 articles published in leading management and entrepreneurship journals between 1993 and 2024. It maps theoretical perspectives, methodological …

Advances In General Relativistic Simulations Of Neutron Stars, Ananya Adhikari

Electronic Theses and Dissertations

Increasingly improving gravitational wave (GW) detectors with progressively lower signal-to-noise ratios will provide GW signal data with higher accuracy. They will also detect GW signals from compact body coalescence (CBC) events, such as binary neutron star (BNS) mergers, more frequently. This, in turn, poses a two-fold challenge to the numerical relativity community: generating numerical relativity simulations with greater accuracy at greater speed and performing tailored simulations to investigate observed GW events post-fact. Towards addressing the first challenge, we present here a new hybrid spatial differentiation scheme that combines a discontinuous Galerkin (DG) method highly efficient at handling smooth fields with …

Motherhood: An Orphan Of American Politics A Comparative Analysis Of State Actors As Institutions, Kristina Ramskyte-Juszczak

Electronic Theses and Dissertations

The political geography of America is relatively unique in the world: the United States is a powerful and wealthy country, but also consists of sub-national actors that retain significant legal powers within their own borders. The political actors in America, at both this smaller level and at the larger Federal level, have uniquely strong institutional power to shape the social and civic life of their citizens. Despite their absolute significance to the survival of their societies, mothers and mothers’ rights have largely been ignored or taken second place to other political issues. As many countries in Europe and other regions …

Cultivating Mindsets Of Persistence: Experiences Of Undergraduate Women Students In Stem Programs At A Public Research University, Etina Qirjo

Electronic Theses and Dissertations

In the fields of Science, Technology, Engineering, and Mathematics (STEM), women's representation is disproportionately low across high school, higher education, and professional sectors. The purpose of this phenomenological study was to examine the factors influencing the persistence of undergraduate women STEM students at a public university by identifying available resources, uncovering obstacles and investigating their personal experiences. Data collection involved semi-structured interviews with a sample of 12 female participants enrolled as undergraduates in STEM majors at a public university. The research design chosen for the study was qualitative, focusing on stories from women’s experiences that provide an understanding of what …