Diversity-Driven Xor Secret Sharing: Reliable And Secure Multi-Path Transmission, Richard M. Olu Jordan

Computer Science and Engineering Theses - Archive

The growing reliance on distributed storage and multipath communication sys- tems has intensified the need for security mechanisms that remain robust even when individual nodes or channels are compromised. Secret sharing provides an information- theoretic approach to achieving both confidentiality and availability, and XOR-based constructions in particular offer lightweight and highly structured designs. This thesis develops a unified analytical framework for understanding and evalu- ating XOR-based secret sharing schemes across multiple operational settings, includ- ing plaintext storage, encrypted-data scenarios, and noisy binary symmetric chan- nels (BSCs). Building on a general (t, n) system model, we examine five threshold configurations—(2, 3), …

Guided-Mode Resonant Nanopatterns For Raman Generation And Photonic Devices, Renjie Chen

Electrical Engineering Dissertations - Archive

This dissertation explores advanced strategies for enhancing Raman amplification in silicon photonic devices, focusing on guided-mode resonance engineering and resonant mode manipulation. Silicon, despite its indirect bandgap, exhibits a strong Raman scattering coefficient, enabling it to function as a viable gain medium for integrated photonic systems. However, the realization of efficient, compact, and low-threshold silicon Raman amplifiers and lasers necessitates innovative design approaches that overcome inherent material and structural limitations.

The first chapter provides a fundamental overview of optics, including physical principles, spectral characteristics, guided-mode resonance, simulation methods, and nanopattern fabrication methods.

The second chapter delves into silicon-based Raman amplification …

Experimental And Numerical Modelling-Based Optimization Of Additive Manufacturing Processes, Vishnu V. Ganesan

Mechanical and Aerospace Engineering Dissertations - Archive

ABSTRACT

Experimental and Numerical Modeling-Based Optimization of Additive Manufacturing Processes

Vishnu V Ganesan, Ph.D.

The University of Texas at Arlington, 2025

Supervising Professor: Dr. Ankur Jain

Experimental and numerical modeling play a pivotal role in advancing additive manufacturing technologies by enabling a deeper understanding of complex, multi-physics processes that govern part quality, performance, and reliability. These manufacturing techniques—ranging from Powder Bed Fusion (PBF) and Material Extrusion (MEX) to Automated Fiber Placement (AFP)—involve tightly coupled thermal, mechanical, and material phenomena that are challenging to capture through empirical observation alone. Experimental methods offer critical validation and insights into real-world behavior, while numerical …

Topology-Driven Performance Analyses In Consensus Algorithms For Multi-Agent Systems, Brandon Ayala

Mechanical and Aerospace Engineering Theses - Archive

This thesis presents a simulation-based analysis of consensus algorithms in multi-agent systems, focusing on how network topology influences convergence performance. Both first-order and second-order linear consensus dynamics were examined across a variety of network configurations, including undirected and directed versions of cycle graphs, star graphs, minimum spanning trees, and fully connected graphs. In addition to standard consensus problems, leader-follower network structures were introduced to explore the impact of leader placement on convergence behavior, and extensions to multi-leader systems were analyzed to study robustness and convergence under multiple reference inputs. Graph-theoretic properties such as connectivity, degree distribution, and Laplacian eigenvalues were …

Multi-Agent Differential Games Under An Altruistic Equilibrium, Craig Alan Lovell

Mechanical and Aerospace Engineering Theses - Archive

This work studies a multi-agent differential game with linear dynamics under the Berge equilibrium. The governing coupled differential equations for a two-agent and a three-agent game under the Berge equilibrium are derived. These games are simulated and compared to the Nash equilibrium. A sensitivity study is performed which validates that, under some criteria, the Nash equilibrium can be recovered from the Berge equilibrium. Policy fusion between the Berge and Nash equilibrium is explored in a two-agent game. A five-agent game under the Berge equilibrium is simulated and multiple teams of agents in this game are evaluated. Finally, a mixed game, …

Animal Triangulation – Expanding The Oppressed/Oppressor Binary To A Triadic Constituency: The Oppressor, The Proxy, And The Oppressed, Katherine A. Abelanet

English Dissertations - Archive

Drawing on three fields of study, Animal Studies, Black Studies, and Shakespeare Studies, this dissertation examines animal triangulation as a system of oppression in which three constituents are triangulated for the benefit of the oppressor. Through triangulation, the oppressed/oppressor duality expands, creating a triad: the oppressor, the proxy, and the oppressed. This reimagining of the traditional binary of oppression opens new areas of conversation by adding an additional component. In animal triangulation, a proxy is created when an oppressor trains an animal or an animalized human to produce an abusive outcome on an oppressed group. By using a proxy, the …

Institutional Pressures And Nonprofit Executive Burnout: A Mixed-Methods Examination Of Organizational Culture And Leadership Sustainability In Texas, Lenita R. Dunlap Phd

Public Affairs Dissertations - Archive

Abstract

Nonprofit leader burnout represents a critical challenge threatening organizational sustainability and mission effectiveness across the nonprofit sector. Rather than an individual failing or isolated organizational pathology, burnout emerges as a systemic phenomenon embedded within institutional forces that operate across the nonprofit field. This mixed-methods examination employs a statewide Texas sample to capture institutional field-level dynamics that operate across municipal and regional boundaries, recognizing that nonprofit organizational fields transcend local contexts through statewide funding networks, professional associations, and regulatory environments that create coherent institutional pressures (DiMaggio & Powell, 1983). While research demonstrates that high work demands and resource constraints exacerbate …

Bridging The Digital Equity Gap: Engaging And Empowering Generation Z Employees In Municipal Government. A Multiple Exploratory Case Study, Amuche L. Agu

Public Affairs Dissertations - Archive

Abstract

Bridging the Digital Equity Gap: Engaging and Empowering Generation Z Employees in Municipal Government. A multiple Exploratory Case Study

Amuche Louis Agu, Ph.D.

The University of Texas at Arlington, 2025

Supervising Professor: Alejandro Rodriguez, Ph.D.

Digital equity and technology fluency are crucial for team building, organizational development and community engagement. It provides a touchpoint for municipalities to establish relationships with residents and offer valuable services. Digital equity is foundational to technology driven engagement, and essential for the attainment of individual, organizational and community development goals. Digital equity is not only critical for effective communication, but also a fundamental tool …

Governance Matters: Evaluating The Drivers Of County-Level Economic Resilience In Texas Using Panel Data From The Post-Covid Recovery (2013-2023), Omar Wesley Bailey

Public Affairs Dissertations - Archive

This quantitative study examines the impact of adaptive governance measures taken by county governments in Texas on their Gross Domestic Product (GDP). The measures were selected based on their fit to adaptive governance theory. The years from 2013 to 2023 are covered, as they encompass the economic shock caused by the COVID-19 pandemic. The measures included the number of special-purpose districts, publicly available budgets, the urban-rural continuum association, the presence of performance dashboards, audits, FEMA-approved hazard mitigation plans, and the number of county revenue sources. The year and county were utilized as a fixed effect to capture time trends such …

Warring Identities: The Transition From Servicemember To Civilian Employee, Michael Beeson

Business Administration Dissertations - Archive

This dissertation explores the role that military service identity plays in the transition to civilian employment. While there is a large volume of research on both the servicemember transition out of the military and military service identity, this dissertation contributes to this literature by examining the intersection of military service identity and the transition to civilian employment. This dissertation is designed to examine the nature of the military identity as servicemembers separate from the military and transition to civilian employment using competing theoretical identity frameworks rooted in identity and social identity theories. First I conduct a survey study that examines …

Validation Of Non-Invasive Methods For The Measurement Of Gonadal And Inter-Renal Steroid Hormones In A Desert-Adapted Amphibian (Scaphiopus Couchii), Alexander T. Baugh, Callie Cho , '23, Alice Onyango-Opiyo , '23, Sophie A. Rodner , '25, Senna Mieth , '25, Daniel Oakes , '24, Liam Halstead , '25

Biology Faculty Works

For aquatic and semi-aquatic vertebrates like amphibians, it is possible to estimate excreted hormone levels using non-invasive methods such as waterborne and salivary sampling. These techniques allow monitoring of endocrine activity over varying, repeated and simultaneous integration periods while minimizing handling-related stress that can ‘contaminate’ hormone estimates, including estimates of baseline glucocorticoids. Here we have validated the extraction and quantification of three steroid hormones (corticosterone, CORT; 17-b estradiol, E₂; testosterone, TST) in Couch’s spadefoots (Scaphiopus couchii)—a desert-adapted anuran of special interest for physiology, evolution and conservation—using non-invasive waterborne and minimally invasive salivary hormone methods. We combined extraction and …

An Exploration Of Teacher Exodus In Predominantly African American Secondary Public Schools Amid Covid-19, Keith Demond Ford

Educational Leadership & Policy Studies Dissertations - Archive

For some time, K-12 teachers across America have been resigning from classrooms in large numbers. Like many of the nation’s communities, schools in American neighborhoods of color have seen an overwhelming amount of teacher resignations amid the COVID-19 pandemic. According to existing literature, education’s traditional systemic norms and health protocols which were initiated during COVID-19 motivated classroom teachers to leave their jobs. This qualitative study uses a phenomenological methodology as it discovers that an interrelatedness of factors influences six participants to resign from their classroom teaching roles at predominantly African American middle and high schools during and immediately following …

Case Study Exploring How Data-Driven Decision-Making Influences Culture At A Title I Elementary School, Cameron K. Ramirez

Educational Leadership & Policy Studies Dissertations - Archive

This qualitative case study explores how data-driven decision-making influences school culture at a Title I elementary school in Texas. Grounded in the conceptual frameworks of data-driven decision-making (Gill et al., 2014) and transformational leadership (Leithwood & Jantzi, 2005), this study investigated how school leaders and staff implement, interpret, and sustain data practices within a high-accountability context. Using a phenomenological approach, interviews were conducted with the principal, assistant principal, two instructional specialists, and three teachers, and artifacts were collected for data triangulation. The findings revealed that effective data use is cultivated through immersive, contextualized professional learning, collaborative systems, leadership modeling, and …

Functional Enhancement Of Pancreatic Islets Through Photobiomodulation For Potential Diabetes Therapeutics, Kelli Fowlds

Bioengineering Dissertations - Archive

Islet transplantation is a potential therapeutic route for type 1 diabetic patients facing chronic ketoacidosis and/or hypoglycemia unable to be properly regulated with standard insulin administration. However, successful engraftment is hampered by a multitude of factors. Harvested islets face rapid, substantial degradation due to hypoxia and nutrient depletion once isolated. Transplanted islets are additionally susceptible to the instant blood-mediated inflammatory reaction (IBMIR). This combination of factors leads to more than half of transplanted islets failing to engraft post-surgery. Many areas of research are dedicated to investigating alternative approaches or supplemental treatments to improve the success rate of engraftment and insulin …

Novel Electrophysiological Biomarkers In Pediatric Drug Resistant Epilepsy And Genetic Epilepsy Syndromes, Sakar Rijal

Bioengineering Dissertations - Archive

Pediatric epilepsies, particularly those that are drug-resistant or genetically driven, represent some of the most complex neurological disorders encountered in childhood. Central to their pathophysiology is a disruption in the delicate balance between cortical excitation and inhibition (E/I), often resulting from impaired GABAergic interneuron function. This imbalance manifests as aberrant network dynamics and altered neural oscillations, giving rise to seizures and long-term cognitive impairments. In this thesis, we developed a translational framework to identify electrophysiological biomarkers that (i) assess cortical E/I imbalance and (ii) map epileptogenic zones, with the aim of enhancing diagnosis, guiding surgical planning, and informing therapeutic monitoring …

Small-Scale Green Infrastructure In Urban Networks - Trinity Presbyterian Church As A Pilot Project, Selvana Getsy -

Landscape Architecture Masters & Design Theses - Archive

Rapid urbanization and increasing impervious cover in cities like those within the Dallas-Fort Worth metroplex have intensified flooding, heat, erosion, and declining ecological quality. Although large-scale green infrastructure (GI) interventions are widely recognized as solutions to these issues, small-scale institutional landscapes remain a neglected yet powerful component of urban GI networks. This study functions as a pilot/demonstration project to evaluate the potential of small-scale GI interventions at Trinity Presbyterian Church, Plano, Texas. The goals are to reduce stormwater runoff, provide ecological and microclimatic improvements, increase community engagement, biodiversity enhancement, and environmental awareness in public institutional settings.

The study utilizes a …

Streets Of Belonging: Reimagining Bataan Street As A Demonstration Project For Cultural Preservation In La Bajada, Avigail Gutierrez

Landscape Architecture Masters & Design Theses - Archive

The objective of this research is to examine how landscape architecture can be used to preserve cultural identity and community life in neighborhoods experiencing gentrification. The study focuses on the La Bajada community in West Dallas and explores how design can help protect the neighborhood’s character and history while improving comfort, safety, and accessibility in public spaces. The research investigates the role of Bataan Street and its traffic islands as social and cultural anchors within the community. It evaluates how landscape architecture can strengthen belonging and resilience against displacement. The study is guided by a research question: How can the …

Transforming A Public Flexible Space Into An Artistic Place For Leisure – An Artistic Intervention For Downtown Arlington., Sowmya Kanaka

Landscape Architecture Masters & Design Theses - Archive

Open flexible spaces are often underutilized, undefined, or lacking identity, hold immense potential to become vibrant artistic places that support leisure, culture, and community life. transforming such flexible spaces into Community-led arts places serve as adaptable environments that can shift to meet evolving cultural and recreational needs. By integrating artistic intervention through public art, interactive installations, and creative spatial programming, formerly Underutilized open space becomes an anchor of activity drawing residents and visitors and influencing adjacent areas to align with its renewed identity. Arts-driven public spaces attract consistent foot traffic and recurring events, stimulating social and economic exchange. When artistic …

Engineered Biomimetic Muscle Graft For Skeletal Muscle Regeneration, Julia O. Aguirre

Bioengineering Theses - Archive

This study aims to develop a synthetic muscle graft that closely mimics the architecture, viscoelastic properties, and bio-signaling characteristics of natural skeletal muscle. By analyzing the native skeletal muscle microstructure, biochemical, and mechanical properties, we establish design parameters for a biomimetic scaffold. The engineered graft integrates tunable mechanical compliance, aligned microarchitecture, and signaling cues to promote cell recruitment, adhesion, proliferation, and maturation. To further enhance biofunctionality, an electrically conductive polymer was incorporated to improve the electrical conductivity, and the graft was loaded with the bioactive lipid signaling mediator “Prostaglandin E2” (PGE2) to support myogenesis during muscle regeneration. The grafts were …

Integrating Off-Spec Scms Into Plc Blends, George A. Qubty

Civil Engineering Theses - Archive

Off-spec supplementary cementitious materials (SCMs) remain underutilized due to variability in reactivity and non-conformance with existing standards. This study evaluates the hydration behavior and fresh-state and mechanical performance of these materials in Portland limestone cement (PLC) systems. One Class F fly ash (FA), one bottom ash (BA), and two calcined clays (HACC and LACC) were evaluated as 20 % replacements to PLC. Hydration behavior was characterized using isothermal calorimetry and thermogravimetric analysis (TGA), while fresh-state and mechanical performance were assessed through flow table, Vicat setting time, load–crack mouth opening displacement (CMOD) flexural testing, and compressive strength testing. HACC increased compressive …

An Analysis Of Structural, Organizational, And Physical Approaches To Disaster Vulnerability: A Case Of Hurricane Harvey In Houston, Tx, Tarsha Hardy

Planning Dissertations - Archive

Global warming and climate change have led to the increased and intensified presence of natural disasters. Cities grapple with the continual challenge of physical, structural, and organizational approaches to reducing disaster vulnerability while constantly working to prioritize the accessibility of safe spaces for the future. The aim of this dissertation is to examine spatial data from Harris County, Texas, in conjunction with key insights from key planning and government decision makers to determine how they can form collaborative and strategic alliances for the development of disaster vulnerability reduction strategies that increase access to safe spaces during imminent disasters. As a …

Beyond Legislation: Challenges And Opportunities Of The Inclusion Of Vulnerable Migrants To The Formal Egyptian Labour Market, Mahmoud Magdy Abdallah, Fatma Younis, Merihan Elsalakawy, Angham Saeed Sadek

Papers, Posters, and Presentations

Egypt hosts a significant number of refugees, asylum-seekers, and vulnerable migrants. There are over 9 million migrants of diverse nationalities, including 1.5 million migrants living in a vulnerable situation (JPMR, 2022). As of June 2025, approximately one million registered refugees and asylum-seekers reside in Egypt (UNHCR, 2025). This substantial population faces considerable legal, economic, and social hurdles. Their presence in the Egyptian labor market presents a complex dynamic, given that they are mostly present in the informal labor market, making it more challenging for the state to benefit from their inclusion in the formal labor market. Furthermore, the formal inclusion …

From Misconception To Inclusion: Policy Pathways For The Integration Of Migrants And Social Cohesion In Egypt, Ghada Abdullah, Haytham Shoman, Riham Bahgat

Papers, Posters, and Presentations

Egypt is located at the crossroads of Africa, the Middle East, and Europe, with over 9 million migrants, including around 1.5 million migrants living in vulnerable situations (IOM, 2022) and around 992,000 registered refugees and asylum-seekers from 133 countries (UNHCR, 2025a) according to the latest available data. Public and policy discussions, however, remain shaped by the widespread stereotypes and confusion in distinguishing between migrants and refugees. This can promote exclusion, disinformation, and social tension. Misconceptions can hinder integration, limit access to services, and erode social cohesion in a country navigating economic constraints and adapting to ongoing demographic changes.

This policy …

Vision Of Nuclear Power Deployment In Latin America And The Caribbean: A Focus On Small Modular Reactors And The Regional Experience Of Central Argentina De Elementos Modulares, Alejandra Loreto Alfaro, Florencia Rentería, Camila Araujo

International Journal of Nuclear Security

Increasing the number of nuclear power reactors in the Latin American and Caribbean region presents technical, financial, regulatory, and environmental challenges. Focused on fostering economic stability, growth, and human capacity development, the deployment of small modular reactors (SMRs) emerges as a key aspect in the region’s energy landscape. The emergence of SMRs represents an opportunity for multidisciplinary cooperation among different sectors. To comprehensively address the challenges related to the protection of nuclear facilities in the region, the Tlatelolco Treaty and the Non-Proliferation Treaty should be strengthened as legally binding instruments to enforce the safety and safeguarding principles integral to the …

Associations Between Older Hispanics’ Diabetes Control And Their Caregiver’S Health Literacy, Jorge Rico

Nursing Dissertations - Archive

Background: Older Spanish-speaking Hispanics are a rapidly growing population in the United States that face disproportionally high rates of diabetes and inadequate health literacy. Familism is valued among Hispanics and caregivers may play an important role in overcoming the social determinants of health facing this vulnerable population. Methods: This descriptive correlation study sought to explore correlations between the caregiver’s health literacy and the patient’s control of diabetes. Findings: Mixed effects model found a significant correlation between the caregiver’s print literacy and the patient’s hemoglobin A1c. Conclusion: The findings are encouraging for future research to explore interventions that target the caregivers …

The Lived Experiences Of Older Adults With Cancer Who Are Non-Adherent To Prescribed Oral Chemotherapy: A Descriptive Phenomenological Study, Ludmila Kosmari

Nursing Dissertations - Archive

Background: Despite the ease of receiving OCT, patients’ OCT adherence is low. With this low prevalence rate, patients are not likely obtaining the full life-promoting effects of OCT. Since medication adherence is often related to lived experiences and standardized medication adherence instruments may not capture these experiences completely, the purpose of this study was to explore how the lived experiences of older adults with cancer influence their adherence to OCT.

Methods: the researcher used a descriptive phenomenological design and conducted individual interviews with 20 older adults with cancer. All participants were prescribed OCT and reported missing at least one dose. …

Case Management For End-Stage Renal Disease Patients, Jamie L. Andrews

Doctor of Nursing Practice (DNP) Scholarly Projects - Archive

Background: Social determinants of health (SDOH) and health literacy directly impact adults with end-stage renal disease (ESRD) on hemodialysis (National Institute of Diabetes and Digestive and Kidney Diseases [NIDDK], 2022; Ulrich, 2020). Adults with ESRD account for 1.5 million hospital admissions and 500,000 re-admissions within 30 days annually (NIDDK, 2022). Case management is essential in reducing re-admissions for adult ESRD patients, requiring abilities to identify factors affecting adult ESRD patients appropriately.

Methods: Therefore, an evidence-based practice (EBP) project using the IOWA Model framework was implemented to increase the knowledge base in identifying care and resources for ESRD patients for telephonic …

Nursing Workplace Rituals: Communication Before, During, And After Covid-19, Angel Infante

Nursing Dissertations - Archive

ABSTRACT

NURSING WORKPLACE RITUALS: COMMUNICATION BEFORE, DURING, AND AFTER COVID-19

Angel Infante, PhD

The University of Texas at Arlington, 2025

Professors: Dr. Deborah Behan (Committee Chair), Dr. Yungfei Kao (Committee Member), and Dr. Jessica Grace Smith (Committee Member)

Background: According to Griner et al. (2021) many disruptions caused confusion for healthcare workers during the pandemic. Communication is imperative when dealing with everyday disruptions in a hospital setting. However, it is even more important to learn about the different types of communication and what is communicated during a past pandemic to know how and what to communicate in a future pandemic. …

Factors Contributing To Technostress In Nursing Education: A Study Of Master Of Science In Nursing (Msn) Education Students, Jennifer Weber

Nursing Dissertations - Archive

This mixed-methods study examined factors contributing to technostress among Master of Science in Nursing (MSN) Education students enrolled in a fully online program. Guided by the Technostress Trifecta Model, the study explored the relationships among age, grade point average (GPA), years of nursing experience, and self-rated technical skills, as well as students’ perceptions of technology use in learning.

Data were collected from 94 participants using the Technostress Scale by Upadhyaya and Vrinda (2021). Quantitative analyses showed that self-rated technical skill was significantly associated with lower perceived technological complexity, while age was significantly associated with both techno-invasion and techno-uncertainty. GPA and …

Decreasing Hospital-Acquired Clostridium Difficile Infections, Angel S. Louder

Doctor of Nursing Practice (DNP) Scholarly Projects - Archive

Clostridium Difficle Infection (CDI) is a significant healthcare threat due to its ability to be transmitted rapidly in healthcare settings. Patient engagement and participation in infection prevention initiatives at admission will lead to early implementation of isolation precautions, diagnosis of infectious pathogens, and treatment. A quality improvement project was implemented at a south-central Texas acute care hospital to engage alert and oriented adult patients, using a bundled approach to screen for the early detection of CDI within 48 hours of hospital admission, thereby reaching the goal of reducing hospital-acquired CDIs. This initiative improved patient engagement with CDI screening, reducing confirmed …