Digital Commons Network^™

Advancing Human-Computer Interaction Systems Through Explainable And Secure Ai Integration, Ifiok Udoidiok

Theses and Dissertations

As artificial intelligence (AI) systems increasingly shape how humans interact with digital environments, the need for transparency, security, and robustness in intelligent decision making has become critical. This thesis explores how explainable and secure AI techniques can be integrated into modern human-computer interaction (HCI) systems to enhance trust, resilience, and alignment with human operators.

We present three related studies, each addressing a distinct challenge in the design of human-centered AI. First, we apply XAI methods, specifically Local Interpretable Model-Agnostic Explanations (LIME), to deep learning (DL) based CAPTCHA solvers. By interpreting model attention patterns, we uncover exploitable weaknesses in text CAPTCHA …

Laboratory Application Of An Aircraft Particle Imaging Probe To Characterize Levitated Ice Crystals And Their Aerodynamic Drag, Cheyenne Phoenix Harrison

Theses and Dissertations

Ice crystals in the upper atmosphere range in size from a few nanometers to a few millimeters, creating potential damage to vehicles traveling at hypersonic speeds; this problem has not yet been investigated with controlled laboratory techniques. This thesis investigates ice crystal impacts on high-speed flight vehicles and their aerodynamics by exploring a new method to combine ice crystal and shock wave experimental apparatuses to achieve experiments of observing ice crystals and shock waves interacting. The objectives of this research are: (1) to consistently produce levitated ice crystals in a setup that can feasibly release the ice crystals into a …

Inorganic Arsenite [I-As (Iii)] Represses Human Renal Progenitor Cell Characteristics And Induces Neoplastic-Like Transformation, Md Ehsanul Haque

Theses and Dissertations

Studies on populations exposed to inorganic arsenic (iAs) have shown an association between this particular exposure and the development of chronic kidney disease (CKD) and renal cell carcinoma (RCC). However, there are few studies addressing how acute exposure of the human kidney to iAs might lead to long-term alterations that might lead to CKD or RCC. This study’s hypothesis is that renal exposure to iAs might alter the renal cells responsible for the repair and regeneration of nephrons damaged by iAs exposure or other renal toxicants. The kidney possesses a minority epithelial cell population that co-express PROM1 and CD24 that …

Evaluation Of Schlafen Family Proteins In Triple Negative Breast Cancer, Savannah Brown

Theses and Dissertations

This dissertation explores the role of Schlafen (SLFN) family proteins in Triple-Negative Breast Cancer (TNBC), a subtype known for its aggressive behavior and poor response to treatment. Through a series of studies, this dissertation examines the interplay between multiple SLFN proteins, chemotherapy resistance, and immune modulation, revealing the potential of SLFN12 as both a biomarker and therapeutic target for improving treatment outcomes, particularly in overcoming chemoresistance in TNBC.

Breast cancer, the most common cancer worldwide, includes various subtypes like TNBC, which lacks estrogen, progesterone, and HER2 receptors, making it resistant to conventional therapies. SLFN proteins, first discovered in mice, regulate …

Cisplatin-Induced Nephrotoxicity And Adaptive Responses In Renal Progenitor Cells: Molecular Insights From Transcriptomic And Proteomic Analyses, Eloho Ighofose

Theses and Dissertations

Cisplatin is a widely used chemotherapeutic agent known for its efficacy against various solid tumors, but its clinical utility is limited by dose-dependent nephrotoxicity. The renal proximal tubule, particularly its epithelial cell population, is highly susceptible to cisplatin-induced injury due to its role in solute transport and high metabolic activity. Recent advances suggest that renal progenitor cells play a key role in epithelial repair following nephrotoxic injury; however, the molecular mechanisms underlying their response to cisplatin remain poorly understood.This study investigates the impact of both acute and chronic cisplatin exposure on immortalized human renal progenitor cells (HRTPT, CD24⁺/CD133⁺) using a …

The Body Is On, Kitty F. Davies

Theses and Dissertations

THE BODY IS ON is a visual art exhibition that considers queer embodiment, pervert as political identity, the arriving climate catastrophe, and difficulty in artmaking. I make use of various concepts from Deleuze and Guattari to interconnect my own with the primary goal to ask: what does futurity look like or mean in these climates (in both a literal, warming sense and an increasingly fascistic, political one), and how do we actualize that future?

The Future Of Democracy Is At Risk As Declining Local Media Erodes Voter Turnout, Melissa Boehning Libert

Theses and Dissertations

The loss of local news sources has social and political consequences. The effects of media decline have been studied extensively at the national level and less so at the state level. However, this is only the second attempt to examine the effects of local media decline. This thesis argues that local media is in crisis, and its decline is correlated with another crisis: diminishing municipal voter turnout. This research examines losses in local newspapers in 45 Illinois counties and how that decline has affected voter turnout in municipal elections held from 2005 to 2023. Regression results suggest that voter turnout …

From Unprepared To On Track: Closing The Kindergarten Readiness Gap By Using A Team-Based Approach To Implement A Multi-Tiered System Of Supports (Mtss) Framework With Fidelity, Erica Filipiak

Theses and Dissertations

We live in a world where preschool and even kindergarten are optional years in schooling, only perpetuating the problem of incoming kindergartener students systemically lacking foundational skills necessary to successfully begin their academic careers. Access to quality preschool is an equity problem that needs to be discussed and researched. Preparing a student to enter kindergarten with the appropriate foundational academic skills does not just set them up for kindergarten success, but also for success in future grade levels. Therefore, a co-design team focused a problem of practice at an elementary school to provide the kindergarten teacher with additional support by …

Intersectionality And The Canon Of Romanticism, Serenah Minasian

Theses and Dissertations

This dissertation discusses the origins of the canon and the place it has in British Romanticism studies both past and present. This research begins unpacking what has already been done in this sector of study and takes it steps further by the use of Crenshaw’s “intersectionality” theory. The “Introduction” unpacks past scholarly work and its role in the present studies and how we must move beyond the past. “Chapter I” serves as a historical breakdown of the canon’s role and impact in both literary studies and Romanticism studies in specific. “Chapter II” provides an in depth analysis of two major …

The Impact Of Selected Winter Cover Crops On Soybean And Corn Yield, Seed Quality, And Economic Returns, Ashley Stockmaster

Theses and Dissertations

Cover crops are being used to reduce nutrient runoff from agricultural fields and to mitigate climate change. However, cover crops may reduce summer cash crop yields and affect seed quality early in adoption. Therefore, this study evaluated soybean and corn yield, seed quality, and a cost-benefit analysis following cover crops.

This study was conducted at the Illinois State University Research Farm and the Western Illinois University Research Farm to evaluate the impact of selected cover crops on soybean and corn yields and seed quality. The experimental design was a randomized block design replicated four times. Cover crop treatments consisted of …

Workplace Sexual Harassment Of Men: Impact On Job Satisfaction, Job Stress, And Withdrawal Behavior, Kassandra Diaz

Theses and Dissertations

This study investigates male sexual harassment in the workforce and its impact on key occupational outcomes, including job satisfaction, job stress, and withdrawal behaviors as well as perpetrator sex. Using archival data from a stratified random sample of 209 male faculty and staff members at a large Midwestern university, the study explores differences in how verbal and physical sexual harassment relate to these workplace variables. Findings revealed that male employees reported more instances of verbal sexual harassment than physical. Verbal sexual harassment was significantly associated with decreased job satisfaction and increased withdrawal behaviors, whereas physical sexual harassment showed no significant …

Predictive Modeling For Healthcare Data Using Nonlinear Bayesian Methods, Prince Kofi Asare

Theses and Dissertations

Unplanned hospital readmissions represent a significant challenge for healthcare systems, contributing to substantial financial burdens and highlighting gaps in patient care coordination. In the U.S., approximately 20% of Medicare beneficiaries are readmitted within 30 days, costing billions annually. Social determinants of health, such as income, housing stability, and social support, account for up to 80% of health outcomes, yet their integration into predictive models remains underexplored. This study introduces a novel Bayesian framework for predicting 30-day readmission risk, combining Gaussian Process models with spike-and-slab priors and Bayesian Lasso regression with Laplace priors. Utilizing Markov Chain Monte Carlo methods, the approach …

Cultivating Counter-Stories To Deficit Narrative Of Students: A Literacy Problem Of Practice, Amanda Brown

Theses and Dissertations

In urban schools across the United States, literacy outcomes remain inequitable, especially for BIPOC students and those living in poverty. In District 17, the mandate to rigidly implement a purchased curriculum resource reinforces deficit-oriented views of student ability and limits teachers’ professional agency to adjust instruction based on formative data. As a result, instruction becomes disconnected from student needs and identities, further exacerbating literacy inequities.

Guided by Mintrop’s cycle of inquiry, this qualitative study examined how participation in a 90-day inquiry cycle influenced the narratives teachers constructed about their students’ literacy abilities. Kindergarten through third grade teachers collaboratively planned and …

Making Monsters: The Intersection Of Black And Queer Characters In Vampire Fiction, Jalissa Jones

Theses and Dissertations

For centuries we have looked at the vampire as a monster, one that skirts the line into acceptability not only because of the vampire's motivations, but more importantly because our depictions of vampires make them desirable to us. This thesis explores the vampire archive, and the question of how the monstrosity of the vampire interacts with race, sexuality, and gender to further uphold notions of white supremacy. This thesis will look at the classic vampire canon set forth by Bram Stoker’s Dracula and Carmilla by Sheridan Le Fanu and two contemporary black vampire narratives: The Gilda Stories by Jewelle Gomez …

Lower Extremity Individual Muscle Forces In Females During Loaded Hex-Bar Squat Jumps, Jadon Konkel

Theses and Dissertations

The purpose of this study was to describe the individual muscle forces and contributions to extensor force occurring during the propulsive phase of unloaded jumps in females and explore how these are influenced by increasing loads using the hex bar modality. Ten, college-aged females (height: 1.66 ± 0.09 m; weight: 68.63 ± 9.66 kg) with weightlifting experience performed hexagonal bar squat jumps at bodyweight (BW), BW+20% and BW+40% of 1RM. Traditional motion capture techniques were employed to collect dominate lower limb kinematics and kinetics. Individual muscle forces were estimated utilizing Static Optimization in OpenSim using a Gait2392 musculoskeletal model. Muscle …

Meeting Athletes Where They Are At: Mental Performance Consultants' Perspectives Of Developmentally Appropriate Consulting, Eleanor R. Cain

Theses and Dissertations

Mental performance consulting (MPC) involves using techniques and strategies designed to teach or enhance psychological skills that facilitate performance and a positive approach to sport competition (Vealey, 2024). MPC can be particularly valuable during adolescence as youth experience cognitive, social, and emotional changes. However, there is a lack of understanding regarding how to uniquely and effectively utilize MPC to help young athletes enhance their wellbeing, long-term development, and performance (Thrower et al., 2023). The purpose of this study was to gather mental performance consultants’ perspectives of the developmental considerations involved in mental performance consulting with adolescent athletes. Participants included 17 …

How Latine College Students Experience, Maneuver, And Navigate Within The Colonizing Notion Of Smartness, Jasmine Jetton-Gonzales

Theses and Dissertations

This study explores how Latine college students, particularly those who are the first in their family to attend college, navigate and maneuver within the dominating colonizing notion of smartness in academia. Rooted in an Anglo-centric educational framework, the American education system often marginalizes Latine students by devaluing their cultural and linguistic knowledge while upholding Eurocentric standards of intelligence. Using a qualitative critical research approach, this study employs testimonios to examine the lived experiences of Latine college graduates in Illinois. Findings reveal that Latine students frequently encounter systemic barriers that challenge their academic identity, including racialized perceptions of intelligence, institutionalized deficit …

Do Exploratory Probing Movements Predict Perceived Geometric Or Affordance Properties Of A Surface?, Arghya Kashyap

Theses and Dissertations

People use different exploratory movements to perceive different properties of a handheld object and different exploratory wielding movements to perceive different properties of a wielded object. We investigated whether people use different exploratory probing movements to perceive different properties of a surface. Participants probed a surface and attempted to perceive either an affordance (whether they could stand on that surface) or a geometric property (angle of inclination) of that surface. Perceived angle was nearly perfectly correlated with (but imperfectly scaled to) surface angle. The perceived boundary between surfaces that could be stood on and those that could not be stood …

Transformative Social Emotional Learning Practices And Instructional Engagement In The Kindergarten Classroom, Lisa Skelly

Theses and Dissertations

The kindergarten teachers at Catalina Elementary School have identified a crucial issue: their students' inability to self-regulate is impeding their learning and classroom engagement. The kindergarten team engages in ongoing professional learning with a focus on transformative social emotional learning. The teacher team explores whether on-going professional learning based in transformative social emotional core competencies impacts their direct instruction of transformative social emotional standards. Teachers further support implementation of the transformative social emotional core competencies using structured play-based activities. Following the on-going professional learning sessions, the teacher team would craft a whole group lesson and select an activity to embed …

Growing Through The Questions: Studying Sticking Points To Strengthen Commitments To Socially Just English Language Arts Teaching, Kaitlyn P. Blake

Theses and Dissertations

This teacher-research study explores sticking points that emerge in my high school English language arts (ELA) classroom as a way of aligning my practice with my socially just ELA teaching framework, especially in my early career years. Using qualitative methods to focus on my classroom interactions with students, two specific sticking points emerged as significant to my learning. Although I initially interpreted these sticking points as being between the students and me, my analysis revealed that the sticking points were actually a result of my socially just framework being challenged by my own enactment of it. Learning to reframe these …

Stress And Behavior In Beef Calves During Weaning, Kathleen E. Tierney

Theses and Dissertations

Animal welfare in commercial livestock operations has been an increasing topic of concern. It is well known that stress can have significant behavioral and physiological repercussions. It is especially important in commercial operations to reduce stress, as animal efficiency is the leading priority. In an effort to reduce stress on animals and improve welfare in livestock operations, several studies have evaluated common husbandry practices. One of the most widely studied practices is weaning, which encapsulates the process of removing the young from the dam. Several studies have evaluated the effects of weaning on beef cattle through a variety of behavioral …

The Effects Of Training And Peer Coaching On The Fidelity Of Explicit Instruction On Social-Emotional Learning In Early Childhood Education, Ashley A. Strausbaugh

Theses and Dissertations

The current study investigated how training and peer coaching could improve fidelity of explicit instruction practices in early education teachers for social-emotional learning. Three teams of preschool teachers were trained in the use of explicit instructional practices and paired up to provide coaching in these practices during the intervention. The training and coaching were based on the model by Dunst et al. (2019), which identifies that providing training that includes elements of information, demonstration, practice opportunities, coaching and feedback increases the likelihood of moving knowledge to practice. A multiple baseline design was used to investigate fidelity of explicit instruction for …

Teaching The Twenty-First Century: A Pedagogical Approach To Contemporary Violin Repertoire From Beginner To Advanced, Holly Workman

Theses and Dissertations

Violin pedagogy has largely ignored the last century of repertoire. Students finish their training with very few of the technical or musical skills required for the successful performance of contemporary music. This document discusses why newer repertoire should be added for all students and how teachers may introduce it to the traditional program of study without excessive disruption to the existing methods of teaching. Finding appropriate repertoire can be very difficult so this document includes a series of appropriate works which encompass beginner, intermediate, and advanced ability levels. Contemporary techniques must be taught in a guided manner and each chapter …

The Relationship Between Cardiac Patient Beliefs And Experiences With Insurability And Their Decisions On Whether Or Not To Pursue Genetic Testing, Julia Schoeni

Theses and Dissertations

Since the enactment of the Genetic Information Non-Discrimination Act (GINA) in 2008, genetics providers have been incorporating conversations about GINA in pre-test counseling. There is currently limited evidence of the effects of personal or family histories of cardiomyopathy or aortopathy and associated genetic testing on patients seeking insurance policies not protected by GINA, including life, long term care, and disability insurance. This study aimed to determine whether individuals with a personal or family history of cardiomyopathy or aortopathy are having conversations about future insurability with their healthcare providers and how they perceive their ability to get these insurances when deciding …

Novel Redox Oxygen Active Materials For Solid Oxide Cells And Thermochemical Hydrogen Production, Jiaxin Lu

Theses and Dissertations

This dissertation investigates novel materials designed to significantly enhance the performance and durability of oxygen electrodes for solid oxide cells and redox active materials for thermochemical hydrogen production. The first part of this work evaluates Ta-doped BaCoO₃₋δ (BCT) and its structural analog SrCoO₃₋δ (SCT), focusing on their catalytic performance in oxygen reduction and evolution reactions. Among BCT compositions (x = 0.1, 0.3, 0.5), the BCT10 (x = 0.1) composition exhibited the highest oxygen vacancy concentration, electronic conductivity, and lowest polarization resistance. However, SCT10 surpassed BCT10 in these critical performance parameters and also demonstrated greater stability over extended operational periods. Notably, …

Knowledge And Ontology Enhanced Approach To Natural Language Understanding (Koe-Nlu) In Computational Social Media And Healthcare, Naga Usha Gayathri Lokala

Theses and Dissertations

Natural Language Understanding (NLU) faces both opportunities and challenges as the amount of social media and healthcare data grows. This is particularly evident in context-sensitive applications such as evaluating cognitive health, identifying mental health symptoms, and monitoring drug abuse. Even though traditional NLU models work well for processing language in a wide range of areas, they often lack the ability to understand language in a specific domain, reason in context, and incorporate structured external knowledge. This dissertation talks about the Knowledge and Ontology Enhanced Approach to Natural Language Understanding (KOE-NLU), a new framework that is meant to make NLU systems …

Invention Beyond The Author, Jonathan Brent Butler

Theses and Dissertations

The following dissertation examines how what Michel Foucault calls the “author function” affects contemporary students of writing and examines some historical alternatives to this way of conceptualizing the writing process and the writer’s role in it. Chapter 1: Author (Dys)function describes the author function and its discontents, the problems of the Romantic conception of “genius,” and summarizes the following chapters. Chapter 2: Early Writing Instruction focuses on classical approaches to rhetorical instruction that emphasize habit and aim at the cultivation of a particular subjectivity characterized by the capacity to respond to shifting rhetorical situations; this chapter draws on the work …

Choice Overload In The Digital Age: A Cognitive Neuroscience Approach, Jacob Matthew Stanley

Theses and Dissertations

This dissertation examines the neural mechanisms of value-based multiattribute decision making through the lens of choice overload during consumer choice. Two behavioral experiments established that choice sets of a moderate size with nine options were perceived as most optimal compared to choice sets with three and 24 options, and options chosen from the largest set size were judged to be the least satisfying. A functional MRI study then examined how the brain responds to choice sets varying in size and complexity by manipulating the number of options presented as well as the presence of asymmetrically dominated decoy alternatives during a …

Origen Of Alexandria On Cancticles: Exegeses And Homilies As Forming Christian Identity, Annaline Bethany Cely

Theses and Dissertations

This dissertation focuses on how Origen of Alexandria, through both homilies and exegetical commentary practice, presents Canticles as a piece of literature fittingly understood as Scripture. For Origen, Scripture is the source text by which Christians can engage with God and mold their lives upon Christ. This dissertation mimics Origen's own methodology by performing a line-by-line reading of his work, which allows the reader immediate access to Origen's work while also acting as a commentary of Origen's commentary. As of Fall 2025, there are no commentaries in English on any Church Father (only translations) which is concerning as the reading …

Influence, Confidence, And Interest In Mathematics: The Route To Increasing Female Participation In Stem, Lisa Galbreath Neaton Black

Theses and Dissertations

Women are underrepresented in STEM professions despite initiatives to encourage young women to pursue these financially rewarding careers. Studies show this divide is not due to inability or lack of female participation in higher education, as women tend to outscore their male counterparts on standardized tests and make up approximately 59% of the postsecondary student population. Rather, the disconnect in the high school-to-college STEM pipeline for young women seems to center on mathematics. In response, this action research study focused on addressing societal influence and mathematical confidence and interest using a constructivist approach in an honors Algebra 2 class.Hands-on activities, …