Digital Commons Network^™

Comorbidity And Violence: What Role Does Resilience Play In Preventing Violent Acts?, Madeline J. Petit

Theses and Dissertations

The conjunction of substance use disorders, mental illnesses, and violence has been shaped through traditional risk-centered models, yet these approaches fail to explain why most individuals do not engage in violent behavior despite being high risk. This study aims to investigate how resilience may buffer the criminogenic effects of comorbidity and help understand the majority of those at risk who remain nonviolent. The data for this study is drawn from the MacArthur Violence Risk Assessment Study, which consisted of 2.255 person-waves, as the data examined comorbidity across 5 waves, consisting of 451 participants in each wave.Each participant in each wave …

Characterizing A Low-Gradient Stream In Central Illinois As Gaining Or Losing And Observing Seasonal Changes In This Behavior, Eric Timothy Brunner

Theses and Dissertations

While the seasonal behaviors of low-gradient streams have been studied, the behavior of surface water and groundwater interactions within low-gradient streams in glaciated terrain is not fully understood. A third order, low-gradient glacial stream with a saturated riparian buffer in central Illinois was studied to determine the direction of flow between the surface water and groundwater. The goals of this study were to determine 1) whether the stream was gaining or losing water, and 2) whether the gaining or losing nature of the stream-aquifer system changes seasonally. At both an upgradient and downgradient location, two wells were installed: one in …

The Role Of Body Composition In Predicting Fitness Performance Of Law Enforcement Officers, Taylor J. Parmentier

Theses and Dissertations

Law enforcement officers (LEOs) perform physically demanding tasks such as foot pursuits, lifting, carrying, dragging, and physical restraint. Effectively performing these duties requires significant muscular strength, endurance, and cardiorespiratory fitness. Lower fitness levels pose risks for reduced health, performance, slower recovery, increased fatigue, and potentially affecting decision-making under strenuous conditions. The purpose of this study was to identify the strongest predictor of physical fitness performance among active-duty LEOs. Body composition analysis and a comprehensive fitness evaluation of twenty-nine male LEOs (age: 36.2 ± 9.3 years, body mass (BM): 95 ± 13.7 kg, height: 1.8 ± 0.1 m) was completed. The …

An Application Of Molecular Dynamics To Hed Plasma Physics: Point And Group Defect Diffusion In Coulomb Crystals, Levi Webb

Theses and Dissertations

Molecular dynamics (MD) simulations are used to explore the microscopic behaviors of complex systems that cannot be easily studied experimentally. In particular, the microphysics of high energy density (HED) astrophysical plasma environments remain inaccessible by modern experiment---even in laser facilities, these plasmas exist only on short timescales that do not lend easily to investigation. The diffusion of point and group defects through crystallized plasmas in the cores of white dwarfs and neutron star crusts, called Coulomb crystals, has potentially macroscopic implications for the evolution of these bodies. Thus, I employ the widely-used MD code LAMMPS to simulate small Coulomb crystal …

Informing Policies: Examining Socio-Cultural Factors Influencing The Prevalence Of Gender-Based Violence, Patricia M. Ebubechukwu

Theses and Dissertations

Despite growing policy attention and legal reforms, Intimate partner violence (IPV) remains a persistent public health and human rights concern in Nigeria. This study examines the socio-cultural influences on the prevalence of gender-based violence among ever-married women in Nigeria using data from the 2024 Nigeria Demographic and Health Survey (NDHS). Drawing on a nationally representative sample of 19,863 women aged 15 to 49, the research investigates how geopolitical zone, internalized gender norms, religious affiliation, educational attainment, and household wealth shape women’s experiences of physical, sexual, and emotional IPV. Guided by social norms theory and the ecological model of violence, the …

Managing Multi-Drug Resistance: An Evolutionary Game Theory And Optimal Control Approach, Shukhrat Nasrulloev

Theses and Dissertations

Multi-drug resistance is an evolutionary process in which treatment eliminates sensitive cells, allowing resistant clones to dominate. This thesis investigates this process using a framework integrating population dynamics, evolutionary game theory, and optimal control theory. We develop a two-population logistic growth model describing competition between drug-sensitive and drug-resistant cells under treatment, construct dose-dependent payoff matrices and replicator dynamics to characterize evolutionary competition, and derive a critical drug level D_crit = (r_S - rR)/(dS - d_R) at which resistant cells gain a fitness advantage. An optimal control problem is formulated via Pontryagin's Maximum Principle to identify schedules …

Perceived Barriers To Physical Activity And Campus Recreation Facility Usage In College Students Referred Or Not Referred To An Exercise Is Medicine® On Campus Program, Benjamin M. Colbert

Theses and Dissertations

INTRODUCTION: Approximately 36-50% of college students are inactive and report numerous barriers to being physically active. Physical activity (PA) barriers are any obstacle an individual believes affects their PA participation. Individuals who perceive more barriers are less likely to participate in PA and as such, interventions that target barriers may increase PA participation. Exercise is Medicine^® on Campus (EIM-OC) is one intervention that may improve PA levels on college campuses by reducing barriers. The purpose of this study was to document PA and campus recreation facility barriers in university students and examine the influence of an individualized EIM-OC intervention …

The Impact Of Sports Betting Legalization On Marital Status, Hosea Gitonga Njogu

Theses and Dissertations

This study examines the causal Impact of sports gambling legalization on marital stability in the United States using data from the Current Population Survey Annual Social and Economic Supplement (CPS-ASEC) and the American Community Survey (ACS) from 2013 to 2024. The analysis leverages variation in the staggered adoption of state-level sports gambling laws and applies two-way fixed effects, event-study, and the Callaway and Sant’Anna (2021) difference-in-differences estimators, controlling for geographic and individual characteristics. Legalization increases divorce rates by 0.42 percentage points in the CPS and 0.51 percentage points in the ACS, corresponding to increases of 2.4% and 2.6%, or approximately …

Enhancing Hospital Length Of Stay Using Ai Agent Modular Capabilities, Dami Fred

Theses and Dissertations

Hospital Length of Stay (LOS) analysis is essential for managing hospital efficiency and financial performance, yet the analytical depth required remains inaccessible to many organizations due to technical and resource constraints. This thesis introduces the AI Agent Modular Capabilities (AIAM) framework, which decomposes LOS analysis into discrete, codifiable capabilities integrated into a single skill activatable with one prompt. Seven AI Agent Modular Capabilities were developed using a Work Breakdown Structure and tested against a simulated hospital scenario across three successive skill versions. Results demonstrate that the packaged AIAM skill produces comprehensive, consistent, multi-section LOS analyses from a single interaction, outperforming …

Elite Cues Vs. Economic Vulnerabilities: What Explains Isolationist Foreign Policy Attitudes Among Americans?, Sabyasachi Karmaker

Theses and Dissertations

This thesis examines whether contemporary isolationist foreign policy attitudes among Americans are better explained by elite political cues or by economic vulnerabilities. Using data from the 2024 American National Election Study (ANES), the study also examines which mechanism holds more explanatory power in shaping isolationist views. The findings show that both elite cues and economic vulnerabilities are associated with isolationist attitudes, but elite cues have greater explanatory power. These results suggest that contemporary American isolationism is more strongly associated with political identity and elite messaging than with economic hardship alone.

Sibling Relationships Within The Context Of Chronic Conditions, Megan M. Sulak

Theses and Dissertations

This investigation explored how siblings and caregivers experience family life when one or more children have a chronic condition, with specific attention to examining what promotes connection, bonadaptation, and resilience among sibling pairs. Interviews with 10 members of 4 families contributed to the development of a grounded theory whose core theme centered on how knowledge often drove sibling relationship quality.  When individuals with chronic conditions, along with their siblings and parents, were able to access accurate knowledge and understanding about their condition, how to navigate fluctuations in health or illness, and the health care system, they reported being better able …

Abject And Uncanny Manifestations Of Sexuality And Sexual Desire In Nineteenth-Century Gothic Literature, Varvara Kuznetsova

Theses and Dissertations

This thesis explores the ways in which psychoanalytic concepts of the abjection and the uncanny were used to depict monsters and monstrous bodies in nineteenth-century Gothic literature as a site of social, cultural, and sexual transgression. Through the intersections of queer theory, monster theory, and psychoanalytic theory, I examine and analyze depictions of women as monstrous figures in Samuel Taylor Coleridge’s Christabel (1816), Mary Shelley’s Frankenstein; or, The Modern Prometheus (1818), and Sheridan Joseph Le Fanu’s Carmilla (1872). In particular, I aim to detail how language and descriptions of women monsters become coded elements that reveal monstrosity and transgression.

Symmetry In Latin Hypercubes, Levi Neiburger

Theses and Dissertations

Let [n] = {1, ..., n}. A hypercube H of order n and dimension d is a d-dimensional array whose nᵈ cells are indexed by [n]ᵈ. A hyperplane in H is obtained by fixing one coordinate, while allowing the remaining d–1 coordinates to vary. We wish to color each cell of H from a palette of n^d-1 colors such that each hyperplane is polychromatic.

Our main result is the following. Let n be sufficiently large. There exists a symmetric coloring of the d-dimensional hypercubes of order n whose all hyperplanes are polychromatic if and only if: …

Built Different: Place, Identity, And The Holistic Well-Being Of Female Student Athletes, Jaye Mack

Theses and Dissertations

This research furthers the conversation surrounding holistic female student-athlete wellness, recognizing that their experiences can be inequitable – influenced by the intersectionality of race, gender, and athletic identity (Armstrong et al., 2018; Druckman et al., 2018; Neeley et al., 2021). This research accredits the physical environments where athletes train, recover, and connect as an underexplored factor in holistic well-being.

The Indivisible Self Model of Wellness (IS-WEL) was used to (1) explore the influence of physical design features on female student athletes' holistic well-being and (2) understand how their identity shapes how they experience and attach meaning to their team environments. …

The Effects Of Personality Traits On Relationship Satisfaction Among Romantic Partners In Ghana, Emmanuel Owusu

Theses and Dissertations

This study examined the associations of personality traits, as conceptualized by the five- factor model, on relationship satisfaction among individuals in romantic relationships in Ghana. The research explored how individuals’ self-reported traits and their perceptions of their partners’ personality traits are associated with relationship satisfaction. A cross-sectional survey design was used, and data were collected through an online questionnaire administered via Qualtrics. Participants consisted of adults residing in Ghana, most of whom were involved in romantic relationships. After data screening procedures, 149 usable responses were included in the analysis.

Self-reported personality traits were measured using the Big Five Inventory – …

Between Stigma And Strength: How Ghanaian Mothers Navigate Societal Judgement And Build Resilience While Raising Children With Disabilities., Vera Bonku Turkson

Theses and Dissertations

The study explores the lived experiences of mothers raising children with disabilities in Ghana, West Africa. The purpose of the study is to understand mothers’ everyday caregiving realities, their experiences with social stigma, and the ways they build resilience. A semi-structured interview was conducted where a total of eleven Ghanaian mothers/caregivers were interviewed through phone calls, WhatsApp calls, and Zoom. The data were then analyzed using Braun and Clarke’s (2006) thematic analysis guide, which resulted in the development of five themes. The findings reveal that mothers’ experiences are shaped by continuous caregiving demands, financial strain, and deeply embedded cultural beliefs …

Framing Belonging And Exclusion: A Dialogic Narrative Analysis Of English- And Spanish-Language Immigration Coverage During The Trump 2024 Presidential Election, Evangeline T. Cruz

Theses and Dissertations

I investigated how English- and Spanish-language news outlets narratively constructed Latinx immigrants during the Trump 2024 presidential campaign, a period marked by heightened anti-immigrant rhetoric and political volatility. While past scholarships examined immigration framing through tone, sentiment, or frequency analysis, limited attention has been given to the deeper narrative structures that shape public meaning-making. This study addresses this gap by applying Dialogic Narrative Analysis (DNA) and Critical Thematic Analysis (CTA) to a bilingual dataset of 120 newspaper articles from The New York Times, Los Angeles Times, El Diario, and La Opinión published between November 2024 and February 2025.

Findings reveal …

Cover Crop Effects On Soil Porewater Nutrients And Hydrothermal Properties, Md Mahadi Hasan

Theses and Dissertations

Adoption of winter cover crops in the U.S. Midwest may reduce nitrogen (N) and phosphorus (P) leaching from soils, potentially shrinking the hypoxic zone by limiting nutrient runoff into the Gulf of Mexico. To evaluate the impact of selected winter cover crops on soil porewater N and P concentration, a field study was conducted at the Illinois State University Research Farm (ISURF) and the Western Illinois University Research Farm (WIURF). The experimental design was a block experiment with four replications.  Cover crop treatments included a winter fallow, wild pennycress (WPC), golden pennycress (GPC), cereal rye (CR), annual ryegrass (AR), and …

Type Ii Diabetes Treatment Comparison Via Compartment Modeling, Abigail M. Collins

Theses and Dissertations

Type II diabetes mellitus affects one in ten adults worldwide, yet the effects of treatment type and adherence level on developing complications and quality of life have not been well characterized at the population level, and mathematical modeling offers a structured way to examine these dynamics. This thesis adapts the Boutayeb et al. (2004) model to incorporate dynamic treatment types and levels of adherence, producing nine scenarios in which complication development rate and complication recovery rate differed, to compare peak complications and quality of life across treatment and adherence conditions. Using a system of ordinary differential equations and compartment modeling, …

From Deference To Dialogue: How International Gtas From High Power Distance Cultures Adapt To U.S. Classroom Dynamics, Deborah Akua Afi Appiah

Theses and Dissertations

International graduate teaching assistants (GTAs) from high power distance cultures play a significant role in undergraduate education at U.S. universities, yet they face challenges that go well beyond language proficiency. Coming from educational backgrounds where teacher authority is unquestioned and hierarchical, these GTAs must navigate American classrooms that operate on fundamentally different assumptions, where authority is earned rather than assumed, informality is the norm, and students expect to question, negotiate, and be personally known by their instructors. The present study examined how eighteen (18) international GTAs from seven (7) high power distance countries perceived and adapted to these differences while …

“Is This Really Funny?” Humor, Rape Myths, And Social Semiotics In Nigerian Comedy Skits, Grace Oluwatofunmi Adeyemo

Theses and Dissertations

This study examines how rape myth narratives are normalized through humor in Nigerian comedy skits. While existing research has identified rape-supportive beliefs in digital entertainment, it has paid less attention to the processes through which these meanings become socially acceptable. Guided by social semiotics, the study analyzes how semiotic resources use humor to normalize rape myth narratives in Nigerian comedy skits. Using a qualitative design, twelve purposively selected Nigerian comedy skits on YouTube were analyzed. The findings reveal that refusal is constructed as temporary, persistence is portrayed as effort, men's refusal is framed as abnormal, and consent is shaped by …

Fuchs' Problem For Quasi-Cyclic Groups, Dalen F. Elliott

Theses and Dissertations

Fuchs’ problem asks which groups can arise as the group of units of a ring. Although the finite cyclic case has been completely classified, much less is known in the infinite setting. This thesis contributes to this problem by investigating quasi-cyclic. (Pr¨ufer) groups and their finite direct products. We show that for every odd prime p, there is no commutative ring R such that R×∼= Cp∞. This obstruction arises from characteristic restrictions and the algebraic structure of finite fields. More generally, we prove that any group in which every element has order a power of an odd prime p and …

Thinking Machines: Cybernetics, Artificial Intelligence, And Technological Anxiety In The American Cold War, Erin Mae Wilcox

Theses and Dissertations

Following the Second World War, cybernetics emerged as a cross-disciplinary study in philosophy, neurophysiology, electrical engineering, and mathematics. Cyberneticists proposed the formal study of the man-machine analogy; that is, to equate biological structures to a complex mechanical system. Drawing from this analogy, cyberneticists used programmable digital computers to emulate the functions of the human brain. The study of artificial intelligence emerged within this cybernetic discourse in the early 1950s; yet, by the mid-1960s, the two disciplines suffered a methodological fracture. Drawing from a tradition generated by this fracture, historians have traditionally examined cybernetics and artificial intelligence in isolation from one …

Secret-Keeping Experiences Of Young Adults, Jace C. Griffith

Theses and Dissertations

In 2020, researchers Frijns et al. called for a new wave of secret-keeping research which prioritized the person-centric experience of youth keeping secrets. This study added to that collection by comparing two kinds of secret-keeping which are not compared in existing research: secrets which are related to abuse, and secrets which are not. Researchers in the field of child welfare study only abuse-related secret-keeping, almost always qualitatively. Alternatively, researchers of non-abuse secret-keeping or general secret-keeping collect almost entirely quantitative data, absent of the personal experience of secret-keeping.

Through an online survey, 205 undergraduate students were asked to reflect on an …

Predicting Job Performance: The Incremental Validity Of Cognitive Reflection Tests Over General Cognitive Ability And Conscientiousness., Olivia Earll

Theses and Dissertations

Cognitive reflection is the ability to suppress intuitive thinking (Type 1) in favor of deliberative, analytical thought (Type 2). This study investigated cognitive reflection as a predictor of supervisor-rated job performance, exploring its incremental validity over general cognitive ability and conscientiousness. Results indicated that all three variables positively predicted job performance, with cognitive reflection explaining a significant, unique portion of the variance. Exploratory analyses confirmed that this predictive validity remained consistent across industry, age, and sex. Furthermore, cognitive reflection significantly moderated the relationship between general cognitive ability and job performance. These findings highlight the value of deliberative reasoning as a …

Social Media, Masculine Body Ideals, And The Drive For Muscularity: A Serial Mediation Model Across Sexual Identities, Sean P. Mcdaniel

Theses and Dissertations

Body image concerns among men are increasingly prevalent yet remain understudied compared to women’s experiences. Drawing on objectification theory, the present study examines the relationship between social media influence and men’s drive for muscularity through a serial mediation model. Specifically, the present study investigates whether the internalization of masculine body ideals and engagement in body surveillance behaviors mediate the link between social media influence and the drive for muscularity. Furthermore, the present study model attempts to explore how these processes differ across sexual identities, given evidence that sexual minority men face distinct sociocultural pressures regarding appearance. Adult male-identifying social media …

Effects Of Compost Incorporated Versus Surface Applied On Soybean Yield And Soil Health, Maheshwari Kuchanapally

Theses and Dissertations

Compost application is increasingly recognized as a sustainable soil management practice that enhances soil health and crop production. However, the method of application, incorporated versus surface applied, may influence its effectiveness in improving soil properties and crop productivity. This study evaluated the effects of compost application method on soybean (Glycine max L. Merr.) yield and soil health at Illinois State University Research Farm in Lexington, Illinois, across two growing seasons, 2024 and 2025. The 2024 experiment used a Completely Randomized Design comparing incorporated versus surface-applied compost (n = 4; 8 plots). The 2025 experiment used a Randomized Complete Block Design …

Data Defines Success: Algorithm For Dataset Quality Assessment In Deep Learning For Malware Detection, Matei Ionescu

Theses and Dissertations

The field of artificial intelligence is based upon the premise of constructing architectures through which to propagate training data. However, the majority of existing research literature is focused on architecture. While necessary, the attention devoted to the architecture should not so precipitously exceed that of the data. It should be noted that this disparity is not without reasonable cause. Data quality is often exceedingly difficult to verify due to particularities of the field or subfield; LLM repositories of text are distinct from image recognition pictures of dog breeds which are distinct from EEG waveforms of human brains which are distinct …

Building Resilience And Academic Belonging Through An Educational Intervention For Latine Families, Britney Ramos

Theses and Dissertations

Latine students continue to experience disparities in college persistence and completion despite the growing rate of enrollment in higher education. Previous research has focused on the importance of family involvement, culturally responsive programming, and the sense of belonging for Latine students. However, continued research is needed to better understand how family-centered programs support both Latine youths’ sense of belonging and their perceived preparedness for college. This study focuses on how participation in the Juntos Para Una Mejor Educación program relates to Latine youths’ sense of belonging and perceived preparedness for college, as well as how family expectations shape these outcomes. …

Between Tradition And Transition: Cultural Negotiations And Contraceptive Perceptions Among Ghanaian Students In The United States, Beatrice Amissah

Theses and Dissertations

As global mobility continues to rise, international students often encounter new cultural norms and health practices that differ from those in their home countries. While some studies have focused on contraception within the context of gender and types, less focus has been placed on diasporic populations, especially how students navigate tensions surrounding contraception within new cultural environments. This study explores how Ghanaian students in the United States interpret, negotiate, and respond to contraceptive messaging while navigating the cultural transition between their heritage and host societies. Drawing on Berry’s (1980)  Acculturation Theory, the study examines the tensions students experience, the strategies …