Digital Commons Network^™

Neural Network Algorithm And Analysis For Multi-Label Ecg Data Classification, Akhil Raghava Kalal

Theses and Dissertations

Electrocardiogram (ECG) analysis is a fundamental diagnostic tool in cardiology, providing critical insights into cardiac function that directly impact patient care decisions and treatment outcomes. As healthcare systems face increasing demands, automated ECG interpretation using artificial intelligence offers promising solutions to improve diagnostic accuracy, reduce physicians workload, and enhance early detection of life threatening conditions.

This thesis compares two advanced deep learning architectures, CNN-GRU and Wide and Deep Transformer, for multi-label classification of 12-lead ECG data. Using data from the PhysioNet/Computing in Cardiology Challenge 2020, I evaluated both architectures across 27 different cardiac abnormalities. Results demonstrated that CNN-GRU architecture consistently …

Investigation Of The Human Temporal Styloid Process As A Bony Indicator Of Speech, Sommer A. Martin

Theses and Dissertations

The temporal styloid process in humans serves as an attachment point for the styloglossus, stylohyoid, and stylopharyngeus, which are involved in tongue movement and deglutition. I hypothesized that the length of the ossified styloid process in humans is the result of selection for increased musculature that would support tongue movements involved in speech. This hypothesis assumes that the relative length of the ossified temporal styloid process is unique to humans. A comparative analysis of the presence or absence of the temporal styloid process was conducted on ten genera of Old-World primates, and it was found that the length of this …

A Phenomenological Look At Mental Blocks In Artistic Gymnastics, Lauren M. Rogers

Theses and Dissertations

Mental blocks are a poorly understood but pervasive and challenging phenomenon in artistic gymnastics that are characterized by a disconnect between the mind and body and an interference with athletes’ ability to physically perform previously automatic skills. This study used interpretive phenomenological analysis to explore the lived experiences of female D-I collegiate gymnasts in the United States who have struggled with mental blocks, examining the characteristics, causes, and management strategies through semi-structured interviews. Findings suggest that mental blocks are best understood on a spectrum and are difficult to attribute to a single cause as they often stem from a combination …

Centralized Deep Reinforcement Learning For Homogeneous Multi-Component Maintenance Optimization, Joseph W. Wittrock

Theses and Dissertations

This thesis explores an application of reinforcement learning (RL) in maintenance optimization. Recent advances in hardware-accelerated computation and deep learning have made RL a powerful tool for solving optimization problems which are too complex for traditional methods. Maintenance optimization involves improving the efficiency and effectiveness of maintenance activities through data-driven approaches, ultimately reducing costs and increasing asset availability. Making informed maintenance decisions is crucial to long-term sustainability.

A desirable maintenance policy maximizes a utility signal while minimizing the cost of maintenance. Techniques in sequential decision making such as dynamic programming (DP) and RL have found success in optimizing these maintenance …

Larval Environments Affect The Implementation Of The Sterile Insect Technique On Aedes Mosquitoes, Katherine G. Evans

Theses and Dissertations

Sterile Insect Technique (SIT) is an effective method for controlling pests and has been increasing in popularity to control Aedes mosquitoes. SIT involves inundating an area with sterilized male mosquitoes to reduce egg hatch and ultimately the number of wild adults. Previous research indicates that enacting mortality early in the larval life of Aedes mosquitoes can result in counter-productive effects, due to reduced competition among developing larvae. I hypothesize that the effectiveness of SIT at reducing adult populations is modified by densitydependent mortality and density-dependent growth among larvae. I performed two field-to-lab studies and developed an individual-based model to test …

Do You Hear It?: Perceptions Of A Vocational Calling And Retention Considerations For Student Affairs Professionals, Tim Holbrook

Theses and Dissertations

This phenomenological study examines the perceptions of student affairs professionals of their work as a job, career, or calling and how that perception corresponds to their feelings about the course of their future professional endeavors. The research subject pool included student affairs professionals employed by large research institutions who graduated from master’s degree programs between the years of 2017 and 2020.

The study suggests that while these early-career student affairs professionals exhibited a pro-social orientation that attracted them to community-oriented work and they find personal meaning in their employment, there is a risk that individuals in student affairs may be …

Skin And Bones: Transgenerational Trauma, Experimental Storytelling, And The Texture Of Hope, A Creative Dissertation, Janine Blue

Theses and Dissertations

This dissertation theorizes and enacts experimental storytelling as a method for engaging transgenerational trauma, highlighting how form shapes the ways histories are remembered, embodied, and reimagined across generations. Grounded in hope rehearsal as both a theoretical and creative framework, this project examines how BIPOC writers use experimental writing techniques to navigate the afterlives of historical trauma and reclaim storytelling as an act of meaning-making, communal care, and futurity. The dissertation begins with a critical chapter that explores these experimental techniques as strategies for recovery and resistance. The dissertations’ creative chapter, Andre Lyle: Skin and Bones, expands on these ideas …

Perceptions Of A Hypothetical Student As A Function Of Binge Eating Disorder And Gender, Erin Rose Hennessy

Theses and Dissertations

Stigma toward those with binge eating disorder and a gender bias toward eating disorders can lead to misattribution of symptoms as well as a reduced likelihood of having the diagnosis of eating disorders (Currin, Schmidt, and Waller 2007). Symptoms of binge eating, such as being overweight, have different social meanings than an eating disorder that can lead to being underweight, such as anorexia (Saguy and Gruys 2010). In addition, social support has been previously found to have positive relationships with eating disorder recovery. The purpose of this study was to understand differences in people’s perceptions of targets who are overweight …

Scrolling For Two: An Exploration Of Pregnant Women's Social Support And Information Seeking Behaviors Using Technology During The Covid-19 Pandemic, Sarah Knowlton

Theses and Dissertations

Pregnant women faced additional challenges in accessing reliable support and pregnancy- related information, leading to increased distress during the COVID-19 pandemic. Quarantine measures limited doctor’s appointments and isolated pregnant women from their families, which meant that meaningful connections and convenient information was important.

The purpose of this study is to explore the implications of COVID-19 social distancing on pregnant women, with a focus on three questions: 1) what digital technologies did pregnant women use for support and information seeking purposes during the pandemic? 2) how did pregnant women use technology to seek social support during the pandemic? 3) how did …

“Money Is Just A Tool, Not The Goal”: Examining Messages That Parents Tell Their Children About Money, Hannah Delorto

Theses and Dissertations

Parental communication plays a crucial role in a young person's development of financial knowledge and behaviors, such as budgeting, saving, investing, retirement preparation, consumer skills, and avoiding excessive debt. This research focuses on emerging young adults aged 18-25, who are a vulnerable group of spenders. Participants shared memorable messages they received about money and rated the messages for positive or negative affect. Then, they answered questions measuring their financial literacy, perceived financial wellbeing, attitude about the importance of money. Four major themes were represented in the data of memorable messages: daily habits, long-term goals, family finances, and the meaning of …

The Experiences Of Black Male Dei Administrators At Historically White Institutions, Kwame R. Patterson Jr

Theses and Dissertations

This study examined the lived experiences of Black male Diversity, Equity, and Inclusion (DEI) administrators at Historically White Institutions (HWIs) in higher education. Drawing from Critical Race Theory (CRT) and the Campus Racial Climate Model, this research utilized a qualitative narrative inquiry to understand how Black male DEI administrators experience and navigate their roles, as well as the support systems they rely on to overcome barriers encountered at HWIs. I conducted interviews with 11 Black male DEI administrators from various HWIs. Three major themes emerged from the analysis: (1) Limited Legacy: What am I here for?, which highlights the unique …

Exploring How Political Affiliations Influence Trust In Ai Applications, Md Imran Ahsan

Theses and Dissertations

This paper examines the impact of partisanship on public trust in the utilization of Artificial Intelligence (AI) by private and public institutions. This study utilizes data from the “Artificial Intelligence: American Attitudes and Trends” survey (Zhang & Dafoe, 2019). Survey-weighted OLS regression models are employed to examine the variations in trust levels across different private and public institutions. This study hypothesizes that H1: Compared to Republicans, Democrats will report higher levels of confidence in public institutions to develop AI in the best interests of the public. H2: Compared to Democrats, Republicans will report higher levels of confidence in private institutions …

The Evolution Of Social Protection Norms Within The International Monetary Fund, Cindy W. Ziem

Theses and Dissertations

This research explores the evolution of social protection norms within the International Monetary Fund (IMF) and identifies the key norm entrepreneurs. Social protection, which encompasses policies and programs designed to help individuals and communities manage risks, combat poverty and inequality, and access economic opportunities, has undergone significant transformation on a global scale. Traditionally, social policies were not included in the IMF’s agenda, which primarily focused on fiscal matters. However, the Fund has increasingly recognized social protection as vital for macroeconomic stability. This shift reflects a broader transformation in international norms and the progressive inclusion of social policies within global economic …

Exploring Nitrate Reduction In A Saturated Riparian Buffer Through A Three-Dimensional Reactive Contaminant Transport Model In An Agricultural Area, Mcclean County Central Illinois, Franklin O. Ijigade

Theses and Dissertations

Saturated Riparian Buffers (SRBs) are engineered systems designed to remove nitrate and other pollutants from subsurface agricultural drainage water before it reaches a stream. This study utilizes a high-resolution coupled flow and reactive transport model to explore nitrate reduction and transformation in an SRB in glacial sediment. The influence of material heterogeneity on nitrate reduction and the effectiveness of the SRB was investigated. The study was conducted in an SRB located next to and receiving tile drainage water that ultimately drains into a 3^rd order stream (T3 stream) in central Illinois, USA. A three-dimensional steady groundwater flow model was …

Driving The Green Agenda: Examining Individual Preferences For Vehicle Emissions And Inspection Programs, Vera A. Ackah

Theses and Dissertations

This research paper examines the factors influencing individual preferences for vehicle emissions and inspection programs. Drawing on the Value-Belief-Norm theory and Rational Choice Theory, the study examines how environmental attitudes, concerns, and the cost of inspection programs shape an individual’s support. The study analyzed survey responses from 326 individuals at Illinois State University and found that individuals with greater environmental concern and belief in the effectiveness of emissions testing were more likely to support requiring annual vehicle emissions and inspection programs. Furthermore, funding the cost of vehicle emissions and inspections through state taxes, rather than requiring individual vehicle owners to …

Application Of Floating Wetlands To Improve Urban Stream Quality, Daniel Chukwunonso Chukwudi

Theses and Dissertations

Urban streams, impacted by urbanization, often exhibit degraded water quality due to elevated nutrient levels, a phenomenon known as urban stream syndrome. This study evaluates the effectiveness of a floating wetland (FW) system in reducing nitrate as nitrogen (NO₃-N) and phosphate (PO₄³⁻) concentrations in a side canal of the Chicago River’s North Branch, adjacent to Goose Island, Chicago, IL, from 2018 to 2023. Using a five-year dataset, including new sampling from May to December 2023, the research addresses two questions: (1) Do FWs lower NO₃-N and PO₄³⁻ concentrations in urban streams? and (2) Do FWs exhibit seasonal differences in nutrient …

Theoretical Frameworks Used To Conceptualize The Intersection Of Deafness, Emotional/Behavioral Disabilities, And Language In The Literature: A Scoping Review, Jeremy M. Peterson

Theses and Dissertations

The prevalence rate for emotional/behavioral disabilities (EBD) among d/Deaf and hard of hearing (d/DHH) students has consistently been reported as statistically elevated in the literature, but the exact reason for this high prevalence has not been determined. Factors such as diagnostic shadowing, language proficiency, and difficulties in interfamilial communication have been identified; however, recent research suggests that language deprivation may also be a contributing factor. The intersection of language deprivation and EBD among d/DHH students has been studied by numerous researchers, but, to date, no one has explored how these topics are conceptualized together in the literature. As such, I …

The Effects Of Gsa Participation On Bias-Based Bullying And School-Related Outcomes For Perceived Sexual And Gender Minority Youth, Marissa L. Shaull

Theses and Dissertations

Despite growing attention to discrimination faced by sexual and gender minority groups, perceived sexual and gender minority students face intolerance and prejudice within their schools. This study addresses the complex experiences of perceived and self-identified sexual and gender minority youth (SGMY) subjected to bias-based bullying and its effect on their school experience. This study investigated the impact of bias-based bullying on school-related outcomes, such as academic self-efficacy, absenteeism, school climate, and identity disclosure, for SGMY, while also examining Gay-Straight Alliances (GSAs). Participants in the study are self-identified and perceived SGMY, and heterosexual adolescents. An anonymous self-administered Qualtrics survey was utilized …

The Impact Of Ableist Microaggressions On The Supervisory Relationship And The Influence Of Burnout And Self-Efficacy, Berenice Contreras

Theses and Dissertations

Disabled graduate students often report experiences of ableist microaggressions in their training environment, as disability-affirming practices tend to be overlooked in higher education institutions (Kattari et al., 2019; Lund et al., 2020). Ableist microaggressions are verbal, nonverbal, and/or environmental messages that relay derogatory messages toward individuals with disabilities and normalize everyday forms of discrimination enacted toward them (Annamma et al., 2013; Kattari et al., 2019). Studies demonstrate that disabled graduate students in health psychology graduate programs report higher exposure to ableist experiences during pre internship training and supervision compared to other stages of graduate training (Lund et al., 2014; Lund …

What’S Age Got To Do With It? The Cognitive Effects Of Racial And Gendered Microaggressions Among Black Women And The Role Of Age, Colorblindness And Racial Identity, Jazsmine Towner

Theses and Dissertations

Racial microaggressions are brief, everyday derogatory interactions in the form of subtle insults, gestures, or slights (Sue et al., 2007). Microaggressions often are intentional or unintentional interactions that communicate denigrating messages to individuals holding marginalized identities. Previous research suggests that exposure to microaggressions directly results in cognitive depletion (Banks & Landau, 2021). The purpose of this study was to examine the impact of exposure to racial and gendered microaggressions on Black women’s cognitive functioning and the role of racial centrality, age, and colorblind attitudes. I hypothesized that (a) condition assignment would predict changes in cognitive functioning for Black women, (b) …

The Moderating Effects Of Need-Supply And Demand-Ability Fit On The Relationship Of Vocational Interest Fit And Job Satisfaction, Munkhjin Bat-Ireedui

Theses and Dissertations

The current study examined the relationship between vocational interest fit and global job satisfaction and explored how demand-ability fit and need-supply fit moderated this association. The results showed that there was a significant positive relationship between vocational interest fit and job satisfaction. Furthermore, while demand-ability fit and need-supply fit were positively associated with job satisfaction, their moderating effects were non-significant. This study showcases the importance of different types of fit in relation to global job satisfaction. The discussion provides future research ideas, including longitudinal or time-lagged study design and development of fit scales via artificial intelligence.

Normalizing Delinquency And Risky Behaviors In Adolescents: An Application Of Neutralization Theory To Parents, Audrey Cheatham

Theses and Dissertations

Sykes and Matza’s Neutralization theory (1957) was originally developed to explain juvenile involvement in delinquency, with extensions of this theory being used to understand crime in other offending groups. Although neutralization theory has been widely applied to offenders, far less research has examined how neutralizations may be used by non-offending groups. This study applies Sykes and Matza’s framework to parents to explore whether neutralizations are being employed to justify risk taking or delinquent behavior among their adolescent children. This study also examines how parents differentiate risky behavior from delinquent behavior, as well as their attitude towards seven major risk factors …

Improving Student Behavior And Safety On Bus Route 40 Through A Team-Based Climate Intervention, Kathleen M. Lopez Rodriguez

Theses and Dissertations

Student transportation is a daily yet often overlooked component of school climate, safety, and equity. This Dissertation in Practice (DiP), aligned with Carnegie Project on the Education Doctorate (CPED) principles of inquiry, collaboration, and continuous improvement, examined how a structured, team-based intervention could improve student behavior and bus climate on Bus Route 40 at Pinecrest Primary School. Guided by improvement science principles and grounded in a commitment to equity, the study applied a 90-day Plan–Do–Study–Act (PDSA) cycle to test and refine strategies aimed at fostering safety, belonging, and accountability among students. The intervention organized students into color-coded teams that earned …

From Likes To Enrollment: How Social Networking Sites Shape College Decision-Making, David Hermann

Theses and Dissertations

This study applied Chickering and Reisser’s seven vectors of student development (1993), MacMillan’s existential framework (2009), and Chickering and Gamson’s principles for good practice in undergraduate education (1999) as guiding theoretical and conceptual frameworks. These perspectives informed the analysis of voices from young adults in rural communities and explored how recently graduated high school students perceived their use of social networking sites (SNSs) in the college search and decision-making process. I developed five overarching themes from the qualitative data: 1) informational role of social media, 2) visual media and campus impressions, 3) authenticity, peer influence, and human connection, 4) frustrations, …

A Qualitative Inquiry Into The (In)Visibility Of Black Women Leaders In Social Work, Jere Murry

Theses and Dissertations

Black women are vital contributors and innovators within the American workforce yet remain underrepresented in executive leadership roles in most employment settings. Despite the contributions Black women have made, our continued marginalization is a direct result of systemic oppression and institutionalized racism, which persistently deny Black women opportunities for leadership ascension (Beckwith et al., 2016; Collins, 2000; Crenshaw et al., 1995; Wilkerson, 2020). This qualitative narrative approach explores the stories of Black women leaders employed in the child welfare and foster care system, illuminating the challenges, including systemic barriers, limited mentorship, and inequitable career advancement practices. This study examines the …

Building Student-Teacher Relational Trust Through The Promotion Of Student Voice Initiatives, Scott Scherquist

Theses and Dissertations

This Dissertation in Practice investigated how student voice initiatives can strengthen student–teacher relational trust within an urban Pre-kindergarten through eighth grade (PreK-8) school serving a predominantly Black student population. Grounded in Khalifa’s (2018) Culturally Responsive School Leadership framework, the study implemented a 90-day cycle of inquiry focused on a three-part pathway intervention: the establishment of a Student Voice Committee, professional development on culturally responsive practices, and Student Consultation for School Change. A convergent mixed methods design was employed, combining two administrations of the 5Essentials Survey with pre- and post-intervention interviews of students and teachers. Findings revealed disparities between student and …

Turning The Page On Toxic Friendships: How Stories Can Transform Female Friendships, Ericka Renee Bush

Theses and Dissertations

Relational aggression, subtle behaviors such as gossip, exclusion, and social manipulation, can significantly undermine female students’ sense of belonging, peer relationships, and engagement in school. At Sinclair Intermediate School, Illinois 5Essentials Survey data revealed a sharp decline in peer relationship scores among female students, along with evidence gathered through student interviews, analysis of bullying report forms, and observation from an SEL lesson. This Dissertation in Practice investigates how a targeted intervention, Turning the Page on Toxic Friendships: How Stories Can Transform Female Friendships, can strengthen female peer relationships through bibliotherapy. Grounded in Carnegie Project on the Education Doctorate principles and …

Navigating Intelligence: Exploring The Social Implications Of Smartness For Economically Disadvantaged Black Boys, Errika Tenise Baker Perkins

Theses and Dissertations

With a focus on how perceptions of race and socioeconomic class interact to influence friendships and peer acceptability, this study examined the social experiences of Black males with academic potential who come from low-income families. Using Critical Race Theory (CRT), Du Bois’ concept of double consciousness, and the framework of racial opportunity cost as guiding frameworks, the study examined how “smartness” functions as a cultural practice tethered to whiteness and how these dynamics affect identity and belonging.

This study was conducted using a qualitative research design, leveraging an interpretivist paradigm. To extract the stories of the research participants, semi-structured interviews …

Maternal Materialities: Objects, Rituals And Material Evidence Of Medieval And Early Modern Childbirth Edited By Costanza Gislon Dopfel, Claire Kilgore

Medieval Feminist Forum: A Journal of Gender and Sexuality

No abstract provided.

2025 Annual Report, Children's Advocacy Institute, University Of San Diego School Of Law

CAI Annual Reports

No abstract provided.