Digital Commons Network^™

Chatbots In The Classroom: Understanding The Impact Of Chatbot Integration In Writer’S Workshops On High School Students’ Writing, Gabriel Cerda

Theses and Dissertations

Writing is a complex developmental skill, and much research has been conducted to understand in which ways to best close the gaps that national data indicates exist for students in K-12 education. This quasi-experimental study explored how integrating chatbots as dialogue agents within a writer’s workshop framework influences the quality of written compositions among Grade 12 students. The research was grounded in the Direct and Indirect Effect Model of Writing (DIEW) and the Writer(s)-Within-Community (WWC) model, which emphasize both the cognitive and social-emotional dimensions of the writing process.

Participants received real-time, individualized feedback, with pre- and post-test essays evaluated using …

Curriculum, Power And Pedagogical Becoming: An Autoethnographic Inquiry Into Lived Curriculum, Teacher Agency And Institutional Constraints, Norma Ochoa Urban-Palomarez

Theses and Dissertations

My dissertation, Curriculum, Power, and Pedagogical Becoming, examines the complex relationship between institutional curriculum structures, teacher agency, and the lived realities of classroom practice within U.S. public schooling. Situated at the intersection of curriculum theory and critical pedagogy, the study investigates how power operates through scripted curricula, pacing mandates, and fidelity-driven instructional models, and how these mechanisms shape pedagogical decision-making, professional identity, and the educational experiences of Hispanic students of poverty, language, and color. While standardization is frequently framed as a vehicle for equity and accountability, this research explores how institutional constraints may simultaneously regulate teacher practice and delimit possibilities …

Two Essays On Finance: The Dark Side Of The Ceo Inside Debt: Evidence From Stock Price Crash Risk And Cybersecurity Risk And Corporate Bond Yield Spreads, Amir Gholami

Theses and Dissertations

This dissertation comprises of two papers. In the first paper, I found that despite being thought of as a governance mechanism, CEO inside debt seems to distort firms’ information environment. My results indicate that the CEO inside debt creates an incentive for managers to hoard bad news to prevent technical defaults, leading to increasing stock price crash risk. My results are robust after addressing endogeneity using the instrumental variable (IV) approach, a difference-in-differences test based on the implementation of Internal Revenue Code Section 409A Final Regulations, and Oster’s omitted variable diagnostic test, and selection bias using the propensity score matching …

From Witness To Weapon: How Elizabeth Barrett Browning’S “The Cry Of The Children” Embodies And Transforms The Rhetorical Situation, Elyssa Vianey Solis

Theses and Dissertations

Elizabeth Barrett Browning’s “The Cry of the Children” employs trauma-driven rhetoric to expose Victorian child labor exploitation.

Combining literary analysis with rhetorical theory, this research contextualizes the poem within 19th-century industrial exploitation, showing how Browning transforms documentary evidence like the 1842 Children’s Employment Commission Report into emotional testimony. Visceral imagery, ironic juxtaposition, and embodied suffering weaponize pathos to reveal systemic abuse and moral urgency. Applying Lloyd Bitzer’s and Richard Vatz’s theories, we can posit that Browning both responds to and defines the crisis, merging poetic protest with social reform as civic intervention.

By engaging Bitzer and Vatz, this paper argues …

The Role Of Operational Context In Shaping Energy Management Portfolios: A Comparative Case Study Of Two Manufacturing Facilities, Cynthia Aranda

Theses and Dissertations

Using two facilities as illustrative examples, this research investigates how a manufacturing plant's operational and financial context may influence its investment decisions in energy-efficiency measures. This challenges the primacy of the simple payback period (SPP) as a screening tool and instead demonstrates the role of operational context in investment decision-making. To this extent, this study is anchored to a qualitative comparative case study analysis of two ITAC energy assessments for two manufacturing plants in Texas: a higher value-added aerospace MRO plant (GE Aerospace, TR0060) versus a cost-sensitive automotive stamping plant (UMP Metal Stamping, TR0061). The two cases illustrate two different …

Spatiotemporal Evolution Of Flow Decline And Water Consumption In A Highly Regulated Transboundary River: The Lower Rio Grande/Bravo, Ana Yarely Casillas Rodriguez

Theses and Dissertations

Long-term flow variability in transboundary rivers reflects the combined influence of water availability, infrastructure development, and binational water use. Integrating historical discharge with evolving water-use data remains challenging due to fragmented records and nationally bounded assessments. This study reconstructs a 125-year discharge record (1900–2025) from historical Water Bulletins and modern observations at 12 gauging stations, providing a spatiotemporal assessment of flow evolution and water-budget components in the Lower Rio Grande/Bravo (LRG).

Discharge records were grouped into four hydrologic regimes—natural (1900–1913), pre-dam (1935–1950), post-dam (1974–1989), and modern (2010–2025)—and analyzed alongside binational water-use data across major sectors. A basin-scale water budget, using …

Identification Of Peptides For A Muc13 Cancer Vaccine, Abigail Olivia Gomez

Theses and Dissertations

Mucin 13 (MUC13) is a transmembrane glycoprotein that is frequently overexpressed in epithelial cancers. Its extracellular domains and cytoplasmic signaling potential contribute to disrupted cell adhesion, increased invasion, and cancer-promoting pathways, making MUC13 a promising target for immunotherapy. This project used an in-silico approach to identify MUC13-derived peptides predicted to bind HLA class I molecules and support CD8+ T cell-mediated immune responses. Bioinformatics tools were used to screen candidate epitopes for HLA binding affinity, antigenicity, toxicity, IFN-γ-inducing potential, and population coverage, allowing rational prioritization of peptide candidates for experimentation. Selected peptides were evaluated in THP-1-derived macrophages using RT-PCR, Western blotting, …

Developing Bilingual Expressive Language Tools For Spanish-Speaking Families In The Rio Grande Valley, Edessa Xcarlet Reyes

Theses and Dissertations

This pilot study examines the development of dialect-sensitive expressive language tools for bilingual children in the Rio Grande Valley. A cross-sectional survey design was used to examine Spanish-speaking caregivers’ confidence, language use, and perceptions of communication support across home, school, and medical settings. The study focuses on culturally and linguistically responsive practices that account for regional Spanish dialectal variation. Findings from this research are intended to inform the development of family-centered expressive language resources and contribute to equitable assessment and intervention practices for bilingual children in speech-language pathology.

The Rio Grande Valley In Text: Exploring The Borderland Within Social Studies Textbooks Via Synoptic Text, Ana Laura Escobar Fuentes

Theses and Dissertations

This qualitative, synoptic text inquiry examines how fourth-grade Texas history social studies textbooks portray Mexicans, Mexican Americans, and the U.S-Mexico border, specifically the Rio Grande Valley (RGV). This research sought to answer the following questions: How do Texas history social studies textbooks portray Mexicans, Mexican Americans, and the US-Mexican border in three South Texas school districts? Within these portrayals, what historical representations/content are included, diminished, or excluded regarding the vast majority of the Mexican or Mexican American community?

Guided by the conceptual framings of Miller and Almaraz and Valerio-Jiménez (consensual history), Garza and his colleagues (critical histories), Anzaldúa’s geography of …

Writing And Witnessing Ourselves Into Being: Testimonios Of A Chicana Educator And Latine Students For Social Justice In A Writing Course At A Hispanic Serving Institution, Amy Montoya

Theses and Dissertations

A qualitative study of first-year writing students at a Hispanic Serving Institution (HSI) sought to understand the extent to which the practice of writing testimonios transformed how students constructed their sense of identity for social justice. Guided by the research question: How does the practice of writing testimonios in a writing course at an HSI shape faculty and student identity for social justice? This qualitative study analyzed the lived experiences of three former Latine female undergraduates and the researcher in a co - participatory testimonio methodology study. Grounded in the conceptual frameworks of decolonization (Mignolo & Walsh, 2018; Paraskeva, 2013) …

A New Approach To Generate Combinatorial Patterns In Logical Analysis Of Data And Its Application To Predict College Retention, Salihah Ahmed E. Jaafari

Theses and Dissertations

Student retention and degree completion remain central challenges for higher-education institutions, with significant implications for student success, institutional effectiveness, and public accountability. While advances in predictive analytics have enabled earlier identification of students at risk of withdrawal, many commonly used machine learning approaches suffer from limited interpretability, constraining their practical usefulness for advising, intervention, and policy decision making. This dissertation addresses the problem of predicting student persistence by developing and evaluating optimization based, interpretable classification models within the Logical Analysis of Data (LAD) framework. Building on existing LAD formulations, this research introduces two novel pattern generation models, the Best Term …

Electrical Resilience In Water Treatment Plants: An Extreme Weather And Lightning Protection Study, Genesis Martinez

Theses and Dissertations

Water treatment plants (WTPs) are vital infrastructure systems that depend on sensitive electrical, electronic, and control equipment to ensure the continuous supply of safe drinking water and effective wastewater treatment. As global temperatures rise and climate change accelerates, the frequency and intensity of extreme weather events—such as hurricanes, flooding, and increased lightning activity—are becoming more pronounced. These events pose significant risks to the electrical resilience of water treatment facilities, often leading to power outages, equipment failures, grid instability, and prolonged service disruptions. This report explores the impacts of extreme weather, with a particular focus on lightning and electrical surges, on …

Unlocking Innovation: The Impact Of Psychological Safety, Organizational Structure, And Rigidity On The Pursuit Of Innovation Within The Firm, Robert Kyle Rudd

Theses and Dissertations

Innovation is often a competitive advantage generator, growth, and organizational success. However, there is relatively little empirical literature that describes how organizations may be designed such that employees also feel significant freedom to innovate. This dissertation investigates the role of psychological safety and organizational design conditions, perceived organizational structure and perceived organizational rigidity as joint predictors of perceived freedom to innovate (PFTI) of employees.

The quantitative, cross-sectional survey design was used to gather data of 425 full-time U.S.-based employees who were recruited through CloudResearch. Respondents undertook validated scales of psychological safety, perceived organizational structure, perceived organizational rigidity and perceived freedom …

Hybrid Machine Learning For Zero-Day Malware Detection: An Adaptive Static-Dynamic Analysis Approach, Garrett Farmer

Theses and Dissertations

In an era of swiftly evolving cyber threats, zero-day malware continues to be one of the most challenging classes of attacks to detect and mitigate. Traditional signature-based methods often fail to detect novel malicious code, leaving institutions vulnerable to unknown exploits. This thesis proposes a machine learning (ML)-based framework that is designed to detect unknown malware variants. By combining both static and dynamic techniques, such as file structure exam ination and sandbox-based runtime analysis, this approach aims to successfully capture malicious characteristics. The proposed custom pipeline addresses the computational overhead that is associ ated with deep inspections, outlining a staged …

Are College Students Thinking Twice About Having Kids? How Political Factors May Affect The Future Birth Rate In The United States, Gloria Flores

Theses and Dissertations

The trend of the birth rate decline is an important phenomenon which has attracted scholarly attention in the United States. Prior research has explored factors such as income, education, and personal preferences. However, there is minimal research on how the political environment affects people’s family planning decisions. That is, in what ways might perceptions of modern politics affect whether people decide to have children? The limited amounts of research in other countries focusing on political efficacy and its effects on people’s decision to have children have found that people are highly sensible about their political environment when it comes to …

Teacher Stories In A Place-Based Science Education Program In The Trans-Nueces Region, Brian Craig Gabrysch

Theses and Dissertations

This qualitative study examines the emerging professional narratives of five educators involved in the Integrated Oceans Program at a coastal South Texas school district situated within the Trans-Nueces region. Guided by the central research question—What are the emerging teacher stories from a place-based science program in the Trans-Nueces region, and what do we learn about place-based science education from the narratives?—the study employs narrative inquiry methodology following Riessman (2008) and Bruner (1985) to investigate how educators construct meaning from their practice within a program anchored to the Laguna Madre wetlands ecosystem.

The theoretical framework integrates interpretivism (Benton & Craib, 2010), …

Investigating The Ability Of Foxo1 To Maintain Stem Cells, Stella Aime Rios

Theses and Dissertations

Forkhead box O (Foxo) transcription factors are key regulators of stem cell identity and tumor aggressiveness. Prior work from our group and others demonstrates that Foxo factors maintain stem-like states across diverse biological systems; however, the mechanisms by which Foxo1 suppresses differentiation remain poorly defined.

Using C2C12 myoblasts as a model, we investigated whether Foxo1 preserves stem-like programs through regulation of the nuclear pore protein Nup210. RNA interference was used to generate Foxo1 knockdown cells, followed by qRT-PCR, RNA-sequencing, and fluorescence microscopy. Transcriptomic analysis revealed widespread gene expression changes involving metabolic, mitochondrial, and transcriptional pathways. Notably, Nup210 expression was significantly …

On The Structure Of The Homotopy Lie Algebra Of Local Rings, Dawson M. Strong

Theses and Dissertations

This thesis investigates the construction and homological properties of the homotopy Lie algebra π(R) of a commutative local ring (R,m,k). Drawing upon the theoretical framework of differential graded (DG) algebras, we first establish the theory of minimal free resolutions and other standard topics in homological algebra. The core of this work details the iterative construction of the acyclic closure R⟨Y⟩ of k over R, which is achieved by the systematic adjunction of exterior and divided power variables to eliminate cycles in homology. We demonstrate that this acyclic closure serves as a minimal free resolution and provides the means to define …

Mechanistic Investigation Of Arsenic Removal From Drinking Water Using Metal–Organic Frameworks And Granular Activated Carbon, Mousa Almousa

Theses and Dissertations

Arsenic contamination in groundwater represents a critical environmental and public health challenge due to its high toxicity and widespread occurrence in natural aquifers. Chronic exposure to arsenic, even at trace levels, is associated with severe health effects, including skin lesions and increased cancer risk. Conventional treatment technologies, such as adsorption using activated carbon or metal oxides, often suffer from limited selectivity, regeneration difficulty, and reduced efficiency under varying pH conditions. Therefore, developing advanced sorbent materials with high capacity, selectivity, and structural stability is essential for addressing arsenic pollution in decentralized water systems.Metal–organic frameworks (MOFs) have recently emerged as promising materials …

Geochemical Modeling Of Co2 Sequestration In Saline Aquifer: Broom Creek Saline Aquifer, Lawrence Chima Asouzu

Theses and Dissertations

Geological carbon sequestration in deep saline aquifers is widely regarded as a critical technology for mitigating anthropogenic CO₂ emissions. This dissertation presents a formation-specific, kinetically constrained reactive transport modelling study of CO₂ storage performance in the Broom Creek Formation, a quartz- and feldspar-dominated saline aquifer in the Williston Basin, North Dakota.

A high-resolution geological model was constructed in Petrel using well logs, well tops, and Sorensen’s permeability correlation, then exported via RESCUE file into CMG GEM for dynamic reactive transport simulation. The base-case scenario involved injection of CO₂ at 15 MMScf/day for one year, followed by 199 years of post-injection …

Non-Terrestrial Colonial Security And Critical Contingency Operations, Augustine Gabriel Wesley Batten

Theses and Dissertations

Since the turn of the century, the dependence of state functionality and capability on cyber infrastructure has grown exponentially, resulting in an equally expanding list of means to exploit this dependency. Cyberattacks have demonstrated the ability to target the space industry and critical infrastructure beyond our atmosphere. The potential damage this growing threat can bring is what this research aims to prepare for and mitigate. The purpose of this research is to determine cyber-attack indicators and develop responses designed to mitigate the effects of worst-case scenarios. It is important to understand that this study included a theoretical scenario to address …

Integrating Emotional Intelligence Into Interpreter Training: A Syllabi Analysis And Curriculum Review Framework, Caroline Lynn Becker

Theses and Dissertations

This qualitative study examines how Interpreter Training Programs (ITPs) incorporate emotionalintelligence (EI) into their curricula. To examine how these competencies are addressed, this study analyzed course syllabi from accredited four-year interpreter education programs using a structured review protocol. Syllabi from Collegiate Commission on Interpreter Education- accredited programs at both public and private institutions were included. Findings indicate that EI is rarely named, explicitly taught, or formally assessed within course descriptions or assignments. While many programs include components aligned with EI domains, such as ethics instruction, supervision, cultural engagement, and reflective practice, these elements are embedded implicitly rather than framed as …

Studying The Hidden Heat: A Theoretical Approach To Better Understanding The Thermal Conditions Of The Yellowstone Volcano In Wyoming, Usa, Daniel Burke Brunson

Theses and Dissertations

Using the spatiotemporal record of the 2.1–0 Ma ignimbrite flare-up of the Yellowstone Plateau Volcanic Field (YPVF) as a proxy for batholith formation at depth, this dissertation develops and applies the Finite Difference Heat Flow Simulation (FDHFS) program to model crustal thermal evolution beneath the supervolcano. FDHFS, a modular C++ numerical simulator, solves the transient heat equation incorporating variable thermal conductivity, radiogenic heat production, and directional advection in three-dimensional Cartesian grids. Validation against analytical benchmarks and seafloor-spreading analogs confirms its fidelity for combined conduction-advection processes in heterogeneous crustal settings.

High-resolution volume–time analysis of major ignimbrite pulses (Huckleberry Ridge, Mesa Falls, …

Numerical Verification Of A Gpu-Accelerated Particle-In-Cell Code For Low-Temperature Plasma Simulations, Wei Guo

Theses and Dissertations

This thesis presents the numerical verification of Comet, a GPU-accelerated Particle-in-Cell with Monte Carlo Collisions (PIC/MCC) code designed for low-temperature plasma simulations. To ensure efficient deployment across heterogeneous computing architectures, the framework leverages the Kokkos performance-portability layer for high-performance execution. Verification was conducted through a series of hierarchical stages with increasing physical complexity, benchmarking each component of the fundamental PIC/MCC simulation cycle. This structured approach establishes the numerical fidelity of the code's algorithmic building blocks prior to its application in predictive plasma research.

The first stage verifies field interpolation and particle pusher modules against canonical single-particle cases, focusing on ion …

Enhancing Geothermal Productivity In The Red River Formation, Williston Basin: Utilization Of Unconventional Stimulation Technology And Sco2 Injection To Improve Geothermal Inlet Temperature, Fluid Flow Rate, And Project Economics, Etochukwu Jude Uzuegbu

Theses and Dissertations

Geothermal energy is a reliable renewable energy source capable of delivering consistent baseload electricity while emitting very low concentrations of greenhouse gases. In very low permeable geothermal reservoir, the geothermal system’s efficiency and economic feasibility are heavily dependent on reservoir productivity, which includes the fluid circulation and heat extraction efficiency. This research assesses the geothermal inlet temperature dynamics, fluid production and techno-economic viability of two reservoir productivity enhancement approaches: Hydraulic Fracturing (Base Case model) and Fishbones stimulation (Proposed Case model) under various operational conditions. The research aims to evaluate the influence of these two approaches on the geothermal inlet temperature, …

A Behavior Analytic Blueprint For Rapport-Building: Investigating The Key Elements For Success, Nelmar Jacinto Cruz

Theses and Dissertations

Rapport can be defined as a positive relationship between people built through specific actions. Building rapport can benefit organizations by improving performance and increasing work satisfaction. Despite these benefits, research on rapport remains scarce. Curry et al. (2019) completed the most recent rapport study and found that rapport-building led to increased productivity and discretionary effort. The present study replicated and extended Curry et al. (2019) and addressed three limitations of their research: the lack of a control group, the large disparity in time spent with the experimenter, and the rigidity of their rapport conversation script. The study was completed in …

Design And Simulation Of Anti-Resonant Hollow-Core Fiber For Sensing Applications, Pravallika Kante

Theses and Dissertations

This thesis presents the design and simulation of an 8-tube single-ring anti-resonant hollow-core fiber for sensing applications, with particular emphasis on methane gas detection at the fundamental absorption wavelength of 3.3 µm. Conventional solid-core silica optical fibers exhibit strong multi-phonon material absorption beyond 2.5 µm, rendering them fundamentally unsuitable for efficient light guidance and direct gas sensing at mid-infrared wavelengths. Anti-resonant hollow-core fibers overcome this limitation by guiding light predominantly through an air-filled hollow core via the anti-resonant reflecting optical waveguide mechanism, in which the thin silica glass walls of the cladding tubes act as Fabry-Pérot etalons that confine the …

Moon Adaptive Technology For Extraterrestrial Architectural Robotics (Matear), Candela Noemi Solis Zampini

Theses and Dissertations

The Moon Adaptive Technology for Extraterrestrial Architectural Robotics (MATEAR) focuses on the development of an autonomous robotic system capable of providing structural building blocks directly from lunar regolith. As a sustained human presence on the Moon becomes a necessity, the costly and limited payload capacity associated with transporting construction goods from Earth creates a critical challenge. MATEAR addresses this problem through in-situ resource utilization (ISRU), integrating a regolith processing system onto a remote operated vehicle. The proposed system is designed to collect lunar dust, mechanically compact the material, and apply thermal treatment to enhance cohesion through sintering. These regolith-made bricks …

Comprehensive Analytical Approaches To Biophysical And Hard Matter Systems, Carlos Munoz

Theses and Dissertations

In this work we define the methods and experimental techniques that are used in the synthesis, characterization, and development of biophysical and hard matter systems. These efforts encompass six principal areas: Comprehensive characterization of pathogenic bacteria, development of novel chemical methods for probing binding affinities in cellular systems, understanding the electronic properties of silicon/silicon dioxide interfaces, characterization of catalytic perovskite oxide materials, and lastly, heteroepitaxial growth of vanadium nitride thin films on the silicon nitride surface.The Lyme disease spirochete Borrelia burgdorferi (B. burgdorferi) causes an infection with diverse clinical outcomes, which can include arthritis as well as cardiac and neurological …

Numerical Investigation Of Plume–Surface Interactions Using Automated Adaptive Mesh Refinement, Fahim Shahriyar

Theses and Dissertations

This work presents a numerical investigation of plume–surface interactionsusing the Direct Simulation Monte Carlo (DSMC) method, coupled with the devel opment of an automated adaptive mesh refinement (AMR) framework for rarefied flow simulations. A two-dimensional axisymmetric configuration is used to simulate the impingement of a rarefied exhaust plume on a flat surface under vacuum condi tions representative of experimental test facilities. Surface pressure, shear stress, and heat flux induced by plume impingement are computed and compared with published experimental and numerical results to validate the DSMC approach. To address the strong mesh sensitivity and computational inefficiency associ ated with uniform …