Digital Commons Network^™

Chronicles Of A Caliche Road: Lessons From The Monte Through A Poetic Currere Of Language, Memory, And Identity, Brenda Ochoa

Theses and Dissertations

This autobiographical study explores how language, memory, and identity are shaped through lived experience in the South Texas brushland known as the monte. Situated within the cultural and linguistic landscape of the Rio Grande Valley, the study examines how land, native plants, and regional wildlife function as an informal curriculum that shapes voice, silence, and ways of knowing beyond formal schooling. Grounded in autobiographical inquiry, the study uses poetic currere as both an analytic process and a mode of representation to illuminate the relationship between language experience, memory, and identity across time. Data sources include personal memories, reflective journals, original …

Developing A Qpcr Method For Evaluating Parasitoid Wasps As A Potential Means Of Control Of The Southern Cattle Fever Tick Rhipicephalus (Boophilus) Microplus In South Texas, Abbey Abalos

Theses and Dissertations

Ixodiphagus spp. wasps are natural enemies of ticks that have been reported to cause mortality in multiple tick species. Parasitoid wasps may represent a potential biocontrol alternative to traditional chemical tick control methods, which are challenged by non-target toxicity and the development of pesticide resistance in species of concern such as Rhipicephalus microplus, a pest of livestock that causes billions of dollars in loss to the livestock industry worldwide. Rhipicephalus sanguineus s.l. is a congeneric species of R. microplus, and parasitism of R. sanguineus by Ixodiphagus sp. in areas of co-occurrence has been observed. It is unknown if R. microplus …

A Visit-Count-Based Complete Foraging Strategy For Robot Swarms, Arturo Yahir Gonzalez

Theses and Dissertations

Swarm robotics systems often rely on a balance between exploration and exploitation to perform tasks like Central Place Foraging. While exploitation methods such as pheromone trails and site fidelity are well-studied, the efficiency of the underlying random search exploration remains a challenge, frequently leading to redundant coverage and wasted time as multiple agents repeatedly search the same fruitless areas. This thesis introduces a memory-enhanced exploration strategy designed to improve the efficiency of random search in a swarm of simple robots.

In our proposed algorithm, each robot, constrained with limited memory, periodically logs its recent locations while exploring. This spatial data …

The Impact Of Nutrition On Insecticide Resistance And Gene Expression In Aedes Aegypti, Esmeralda Guadalupe Rosas

Theses and Dissertations

The development of insecticide resistance in Aedes aegypti, a major vector of dengue and Zika viruses, threatens vector control efforts, particularly in endemic regions such as South Texas. Insecticides remain widely used; however, their overuse has accelerated metabolic resistance mediated by cytochrome P450 enzymes. Environmental factors such as larval nutrition may influence mosquito physiology and resistance-associated gene expression, yet this relationship remains poorly understood. This study examines how larval nutritional conditions affect the expression of cytochrome P450 genes linked to pyrethroid resistance in Aedes aegypti. Larvae were reared under five dietary treatments differing in lipid and protein ratios, and adults …

Parasites Of Meaning: When Interpretation Becomes Infection, Kimberly Medrano

Theses and Dissertations

This thesis examines the impulse to seek moral certainty in morally ambiguous first-person confessional narratives and argues that such certainty is unnecessary. When confronted with narrators whose moral positions remain unclear, readers often project their own moral frameworks onto the text to place the narrator within specific moral binaries. This impulse reveals the reader’s discomfort with ambiguity. This study analyzes the confessional narration, No Longer Human by Osamu Dazai. The thesis will explore how its confessional narrator resists moral clarification. Drawing on Friedrich Nietzsche's critique of moral binaries and J. Hillis Miller’s concept of the “Critic as Host,” this thesis …

Teaching Under Restriction: Pre-Service Teachers’ Experiences With Censorship, Johnny Salinas

Theses and Dissertations

This qualitative study examined the perceptions of pre-service teacher candidates at a predominantly minority university in South Texas about educational censorship in K–12 schools. Grounded in critical theory, the research explored how restrictive policies—including book bans and legislation related to race, gender, and identity—affect candidates’ developing professional identities and career aspirations. Data were collected through an anonymous, open-ended questionnaire and analyzed to identify six interconnected themes: autonomy and fear, book bans, policy and legislation, race and identity, subject-specific impacts, and readiness and confidence. Participants described an increasingly tense educational climate marked by heightened scrutiny and ambiguous policy expectations. They voiced …

Soil Water Content Beneath Agrivoltaic Installations In A Subtropical Semi-Arid Climate, John Justin Rodriguez

Theses and Dissertations

Agrivoltaics (AV) not only beneficially influences agricultural microclimates in the field, AV systems can generate on-site energy to offset operational costs, diversify income sources, and improve overall resilience, while providing environmental co-benefits such as reduced heat stress on plants and improved resource use efficiency. This thesis evaluated agrivoltaic shading effects on SWC and soil temperature using high-resolution in situ measurements collected over one year in an active vineyard, incorporating row type, soil depth, shading, and time of day. With precipitation as the primary water source, shaded soils exhibited up to 24.53% lower SWC relative to sun-exposed soils, likely due to …

Linking North American Demographic Trends To Mexican Non-Breeding Grounds In A Migratory Warbler, Majuwana Gamage Dulanthi Dileka Kariyawasam

Theses and Dissertations

Migration enables species to exploit seasonal resources despite high energetic costs and mortality risks, making it a key focus for conservation under environmental change. I investigated migratory connectivity in Orange-crowned Warblers using stable hydrogen isotopes (δ²H) from feathers collected at nine non-breeding sites across Mexico. Results indicated generally weak connectivity (MC = 0.18), with most sites hosting individuals from six breeding clusters across Canada and the United States. However, one northwestern breeding group showed strong connectivity, suggesting crosswise migration to eastern Mexico. By integrating these findings with long-term Breeding Bird Survey data, I detected contrasting population trends, with Pacific Coast …

Structure–Property Engineering Of Sn-Based Hybrid Perovskites Via Bulky Organic Cation Incorporation: From 3d To 2d Architectures, Kevin Alejandro

Theses and Dissertations

This thesis investigates tin-based hybrid organic/inorganic perovskites (HOIPs) as a lead-free alternative to silicon solar cells. To manipulate optoelectronic and efficiency of the semiconductors, methylammonium was substituted with bulky propylammonium and tetrabutylammonium cations to induce quasi-2D/3D Ruddlesden-Popper phases. X-Ray Diffraction confirmed 2D layered phases in propylammonium hybrids (5-15%), while tetrabutylammonium hybrids faced steric limits, triggering vacancy ordered perovskite phases at 1% concentration. Optical analysis showed a bandgap narrowing from 1.30 eV to 1.26 eV with increased substitution. Although photovoltaic performance generally declined, the 10% propylammonium hybrid achieved the highest fill factor of ~0.79, indicating superior internal charge transport. This work …

The Application Of Natural Language Processing Towards Auditing Of Unstructured Data: A Design Science Approach, Dennis K. Amoatey

Electronic Theses and Dissertations

Financial auditors must manually review large volumes of unstructured text that may include contracts, internal policies, footnotes, and journal entry descriptions. This time-intensive process introduces risk of human error and inconsistency. Despite advances in automation, no systematic approach exists for applying Natural Language Processing (NLP) to this problem at scale. Using a design science approach, this study develops a framework that demonstrates how NLP techniques can be incorporated across key phases in the audit process, including planning, internal controls evaluation, evidence gathering, and reporting. Initial evaluation through expert feedback had a mix of responses. While some argued difficulty with data …

The Developmental And Emotional Journey Of Bear Trap Garden From Proposal To Production, Mikayla Delos-Santos

Theses

Beginning with the conception of an idea and ending with a three-year reflection, this thesis outlines the creation of a full-length play: Bear Trap Garden by Mikayla Delos-Santos, which will have a production with the School of Theatre and Dance at Southern Illinois University Carbondale on April 23-26, 2026. Bear Trap Garden is a dystopian crime drama that takes place in a matriarchal society in the distant future. Emme, a bright and eager sixteen-year- old volunteers in the boys’ school. She meets Elliot, a boy who was raised outside the system by his mother, now dead, and his father, now …

Effects Of Androgens And Chronic Stress On Anxiety Related Behaviors And Stress Induced Neural Activity In Alzheimer’S Disease Mice, Mekenna Hobson

Psychology

Alzheimer's disease (AD) is a chronic neurodegenerative disorder that is characterized by a progressive decline in cognitive function. Neuropathologically, AD is shown as cortical intracellular neurofibrillary tangles (NFT) and extracellular β-amyloid (Aβ) plaques (Riverol & Lopez 2011) along with cerebral hypometabolism, neuroinflammation, and neuronal death (Armstrong et al. 2021). There are indications that early to mid-life stress has an impact on the risk of cognitive decline and plays a part in the pathology of the neurodegeneration that comes with AD (Armstrong et al. 2021). Psychological stress contributes to emotional states like depression and anxiety. It has been shown that people …

Perceptions On The Moral And Ethical Applications Of Generative Ai In Creative Game Development, Isabella Maccera

Emergency Preparedness, Homeland Security, and Cybersecurity

As AI tools become increasingly embedded in creative industries, they introduce both opportunities for efficiency and concerns regarding authorship, intellectual property, job displacement, and professional identity. Guided by three research questions focused on creativity, ethics, and workflow adaptation, this research employs a qualitative methodology using semi-structured interviews to capture participant experiences and interpretations. This study frames GenAI not as an isolated tool, but as part of a broader system that reshapes creative labor, collaboration, and organizational structure. Inductive coding and thematic analysis reveal five central themes: perceptions of AI in creative workflows, ethical and intellectual property concerns, employment and identity …

American Industry And Soviet Blood: U.S.-U.S.S.R. Collaborations During The Interwar And Wartime Years, Evan Banaszewski

History

This project will examine the connections between American corporations and the Soviet state from the late 1920’s through WWII. In particular, this project will focus on ventures undertaken by said corporations towards the modernization of Soviet industrial might, including, but not limited to, Ford-built automotive plants, Albert Kahn-designed factories, and General Electric-built hydroelectric grids. These ventures not only helped the Soviets transform a historically agricultural society into an industrial one but also enabled the rapid conversion of peacetime infrastructure into hubs of wartime production. The project then situates these private indirect contributions alongside the direct aid provided by the American …

Los Juegos De Rol Como Una Herramienta Psicoeducativa, Víctor E. Quintana Villarreal

Journal of Roleplaying Studies and STEAM

Los juegos de rol han funcionado durante mucho tiempo como un medio para compartir y crear historias en conjunto con colegas y amigos. De ellos, se desprenden también habilidades y herramientas fundamentales para la vida, por lo que un método para sistematizar estos juegos de tablero y dados a funciones educativas es necesario para potenciarlos como herramientas psicoeducativas.

La siguiente, es una propuesta planteada desde el marco constructivista para generar espacios con los juegos de rol como eje central del aprendizaje, y se relatan a través de un marco teórico, seguido de una proposición metodológica, una serie de pasos para …

Journal Of Roleplaying Studies And Steam (Jrpssteam) Vol. 5 [2026], Número 1 (Issue 1), Romano Ponce-Díaz Phd, Cristo Leon, Ivan Avila, Sarah Lynne Bowman, Kjell Hedgard Hugaas, Alexandra Schreiber Ma, Jaime Eduardo García Maya, Víctor Emmanuel Quintana Villarreal Vic Emma, Francisco Gonzalez Ing., Daniel Romero Benguigui, Antonio Roda-Martínez

Journal of Roleplaying Studies and STEAM

El presente número del Journal of Roleplaying Studies and STEAM examina la convergencia entre las prácticas lúdicas, el diseño narrativo y los procesos de mediación sociocultural en la investigación contemporánea. Las contribuciones reunidas en este número abordan el juego de rol como un dispositivo de producción de conocimiento, intervención psicoeducativa y reelaboración de representaciones culturales. Nos podemos atrever a señalar que la educación es la convergencia entre la ludología, las ciencias sociales, los estudios visuales y el análisis cultural; entendiendo a la educación como la actividad consciente e intencionada de transmitir información y conocimientos a las siguientes generaciones.

Martin Heidegger …

Advancements In Wall Systems For Cold Climate Timber Frame Structures, Albert Gérard

Architecture Theses

Timber frame buildings hold a privileged place in the homebuilding industry, where they are prized as a uniquely desirable construction method. Commonly cited reasons for their appeal are the way they feature natural materials and the prominent use of solid wood joinery. Although construction methods for the structures themselves were established through a series of seminal 1980s and 1990s English-language publications, the lack of a suitable wall system has continued to present challenges to achieving more widespread adoption.

Leveraging Drone-Based Thermal Imagery And Artificial Intelligence To Advance Wildland Fire Behavior Quantification And Prediction, Phinehas Lampman, Eric Rowell, Adam K. Kochanski, Jan U.H. Eitel, Jason W. Karl, Leda N. Kobziar

Faculty Research, Scholarly, and Creative Activity

Background: Quantifying and predicting wildland fire behavior is crucial for fire management, ecological research and mitigating wildfire impacts. Rate of spread (ROS), fireline intensity (FI) and fire radiative power (FRP) are key fire behavior metrics. Aims: This study leverages uncrewed aircraft systems (UASs) equipped with thermal infrared (TIR) sensors and machine learning models to quantify and predict fire behavior. Methods: Using repeat-pass UAS-based TIR imagery, we derived high-resolution FRP, FI and ROS estimates and trained artificial neural network (ANN) and random forest (RF) models to predict ROS. Key results: This approach predicted ROS with low error (mean absolute errors (MAEs) …

Transformer Vulnerability To Geomagnetically Induced Currents Using Layered Soil Conductivity Models, Junior A. Sterling

Masters Theses

Geomagnetically induced currents (GICs) pose a significant threat to modern power transformers connected to long high-voltage transmission systems, particularly in regions with low subsurface electrical conductivity. During geomagnetic disturbances (GMDs), time-varying magnetic fields induce surface electric fields that drive quasi-DC currents through grounded transformer neutrals. These currents can bias transformer cores, leading to saturation, waveform distortion, and potential system instability. Despite extensive research, the role of regional Earth conductivity in shaping electric fields and transformer response remains an area requiring deeper investigation.

This study analyzes how contrasting Earth conductivity profiles influence GIC magnitude and transformer saturation risk using two representative …

Tunable Physical Color In Nanostructured Materials: Exploring Reversible Mechanisms For Active Optical Control, Matt Hughes

Chemistry & Biochemistry Undergraduate Honors Theses

Vanadium Dioxide (VO₂) thin films have been grown on silicon wafers using atomic layer deposition of TDMAV (tetrakis(dimethylamino)vanadium(IV)) and H₂O as precursors. A quartz crystal microbalance (QCM) measurement was used during deposition to confirm growth and resulted in a growth rate of approximately 0.6 Angstroms/cycle. X-Ray Reflectivity (XRR) was performed to confirm growth thickness and reported an approximately 30 nm thin film after 500 cycles of TDMAV precursor deposition. X-Ray photoelectron spectroscopy was utilized to determine the phase of the vanadium samples and confirmed the presence of vanadium dioxide as prepared and after annealing under nitrogen …

Sequential Products Of Anaerobic Denitrification In Calcareous And Noncalcareous Soils By Use Of The Gas Chromatograph, Grant S. Cooper

All Graduate Theses and Dissertations, Fall 2023 to Present

The sequential products of anaerobic denitrification were determined on seven Western soils (four alkaline, two acid, and one neutral) by soil and gas analysis. The soils with 1% alfalfa and added KNO3 were incubated at moistures slightly greater than field capacity and with an atmosphere of He. The soils and gases were periodically analyzed and balance sheets prepared. The sequence of NO3-->NO2-->N2O-->N2 operated in all soils. The rates of nitrogen interchanges and maximal amounts of nitrate, N2O2 and N2 were determined. From this data it was postulated that the rate-limiting process for denitrification in acid soils is …

Effects Of Training And Self-Monitoring On Paraeducators' Use Of Behavior Specific Praise, Camille J. Lopez

All Graduate Theses and Dissertations, Fall 2023 to Present

Paraeducators support students with disabilities in special education classrooms but often receive limited training in effective behavior support strategies. This study examined whether training combined with self-monitoring increased paraeducators’ use of positive, specific praise and reduced the use of reprimands during instruction. Paraeducators were trained to use and track their own praise while working with students. Results showed increased use of positive praise and decreased reprimands following the intervention. These findings suggest that brief, low-cost training and self-monitoring can improve paraeducator instructional practices and support positive classroom environments for students with disabilities.

Where Were Women?: Women In The United States Intelligence Organizations From The Office Of Strategic Services To The Central Intelligence Agency, Madison Harris

All Graduate Theses and Dissertations, Fall 2023 to Present

United States intelligence historians have largely neglected the importance of women’s intelligence labor as well as the centralized intelligence organizations that existed from World War II to the early years of the Central Intelligence Agency (CIA) – including the Office of Strategic Services (OSS), Strategic Service Unit (SSU), and Central Intelligence Group (CIG). While assumptions about women in intelligence work during this period are usually drawn from stereotypical portrayals in popular media, such as books and movies, this thesis utilized statistical data and other agency sources to build a broader understanding of women’s actual labor.

This thesis demonstrates that women …

Cannabis: A Model Plant To Study Light-Mediated Reproductive Development, Madigan J.H. Eckels

All Graduate Theses and Dissertations, Fall 2023 to Present

Cannabis (Cannabis sativa) is a plant of increasing importance for research, medical, recreational, industrial, and agricultural purposes, but a strict legal landscape means that it was chronically understudied. Now that research institutions can utilize this plant for study, we require updated terminology to describe various cannabis flowering types that occur under ideal and non-ideal growing conditions. We introduce new flowering terminology and describe them in text and with photographs.

Plants use light as a resource to power photosynthesis, and a greater total sum of photons generally increases yield. In controlled environment agriculture where growers utilize light fixtures instead …

Designing A Uae-Centric Integrated Mobility System: Linking Transport,Traffic, And Urban Data For Smarter Travel, Alreem Jabir Alshamsi

Theses

Urban mobility systems are central to smart city performance; however, in many rapidly developing cities, mobility services remain fragmented across agencies, platforms, and datasets. In the United Arab Emirates (UAE), cities such as Dubai and Abu Dhabi have made significant investments in digital infrastructure and intelligent transport solutions. Despite this progress, existing mobility applications continue to operate in functional silos, limiting real-time adaptability and cross-domain integration. Current platforms primarily focus on transport coordination and congestion avoidance, with limited integration of broader urban datasets such as building access schedules, environmental conditions, and localized service availability. This research addresses the absence of …

Subject. Object. Thing., Cristin Hand

Theses

Subject. Object. Thing. is part of an accumulating record of self-construction and self-reflection. The work considers the complications of visibility through self-portraiture, how the desire to be seen exists alongside the impulse to withhold, obscure, and substitute. Working across photography, performance, collage, and sculptural constructions made for the camera, I fragment, disassemble, and reconfigure my body as photographic subject and material. This exploration is structured around a series of oppositions; concealment/exposure, anonymity/specificity, subject/object, naked/nude, and destruction/reconstruction. I do not attempt to resolve these oppositions. Instead, I consider where these categories blur, contradict themselves, and become unstable. Central to this inquiry …

Tom: Toward A Design Language For Object Personality, Mike Minerva

Theses

Design has been chasing seamless efficiency for decades, creating smoother interactions, more compliant objects, and experiences that disappear entirely. When an object is frictionless, it does not lack personality. It has a personality. One that is obedient, meaningless, and remarkably boring. An object that pushes back has boundaries, and that resistance comes from a position of caring. Objects have always been able to refuse. What is new is that the refusal can now come from inside the object, from memory, adaptive thinking and a disposition toward the person using it. Expressed consistently over time, that agency is perceived as personality. …

Like A Rolling Lychee, George Meng

Theses

I grew up in Shanghai, China—a megacity with over 25 million people. I was privileged enough to avoid the grueling fate of taking the National College Entrance Examination (Gaokao). At 16, I moved to Sewanee, a small college town in rural Appalachia with a population of only 3,000. Overshadowed by that curiosity was the collision of two worlds and my sense of belonging and identity. I wasn’t fully aware of how I watched and copied others’ behaviors and mannerisms to blend in as an adolescent. Being a minority in the middle of nowhere Tennessee meant I was conditioned into fitting …

Validity Of The Schrage Equation In Prediction Of Evaporation Rate Of Liquid N-Dodecane In High-Pressure Nitrogen Gas: A Molecular Dynamics Study, Wazih Tausif, Jordan Hartfield, Md Amin Haque, Zhi Liang

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Evaporation of liquid fuel in a high-pressure air is a process that critically influences fuel–air mixing in advanced propulsion systems. In this work, we use molecular dynamics (MD) simulations to study the validity and accuracy of the Schrage equation in quantifying the evaporation and condensation rates of n-dodecane (a diesel surrogate) in air (approximated as N2 gas) with gas pressure varying from 0 atm to above the critical pressure of n-dodecane. The MD simulation results show that the evaporation coefficient (αe) is higher than the condensation coefficient (αc) at the evaporating n-dodecane surface and is lower than αc at the …

Prairie Haven: Combating Urban Sprawl With Ecological Landscape Assemblage In Forest Lake, Minnesota, Ryan Anthony Calhoun

Landscape Architecture Theses

Contemporary residential developments frequently default to sprawl, creating fragmented environments that lack both environmental resilience and authentic human interconnection. This thesis explores how landscape architects can utilize Assemblage Theory to design residential developments where sustainable materials, ecological systems, and social elements dynamically assemble to create a meaningful, human-scaled sense-of-place. By synthesizing the structural planning efficiency of New Urbanism, the ecological imperatives of Landscape Urbanism, and the metrics-driven performance of Ecological Urbanism, this research develops a hybridized operational approach to residential development. Applied to a master plan in Forest Lake, Minnesota, the design for “Prairie Haven” demonstrates how treating a neighborhood …