Digital Commons Network^™

Three Funny Things: A Multicultural Validation, Jon Hook

Dissertations

This dissertation evaluated the efficacy of Three Funny Things, a humor-based positive psychology intervention (PPI) designed to enhance subjective well-being (SWB) and reduce depressive symptoms. Subjective well-being was operationalized through self-reported happiness, measured by the Authentic Happiness Inventory (AHI), and depressive symptomatology, measured by the Center for Epidemiologic Studies Depression Scale (CES-D). A repeated-measures design was employed across three time points: baseline (Time 1), post-intervention (Time 2), and one-month follow-up (Time 3). Participants (N = 126) represented a racially diverse community sample, including individuals identifying as White (61%), Black or African American (18%), Hispanic or Latino/a (11%), Asian (6%), and …

Development Of The Hydrogeology Concept Inventory And Exploration Of Its Embedded Spatial Thinking Components, Oluwarotimi Akindele Popoola

Dissertations

Hydrogeology is a sub-discipline of geoscience that deals with the occurrence and movement of water and possible contaminants within the subsurface. Understanding basic principles of hydrogeology is important for applying practical solutions to hydrogeology problems. Hydrogeology is a visuospatial discipline in which spatial thinking skills play a significant role. To assess the hydrogeology knowledge of students, a valid and reliable assessment instrument with spatial components is required.

This research was conducted as a series of quantitative studies with three goals: (1) to develop the Hydrogeology Concept Inventory (HCI), a valid and reliable measure of upper-level undergraduate students’ hydrogeology knowledge, (2) …

A Content Analysis To Investigate The Evidence Of National And State Health And Physical Education Curriculum Standards In Illinois High Schools, Amber Lyn Stewart

Dissertations

Does curriculum in Illinois high schools have evidence of National and State Health and Physical Education Standards? This study consisted of a quantitative descriptive content analysis to examine the extent to which Illinois high school curriculum material included National and State physical education and health standards. The researcher utilized a rubric that was aligned to the three sets of standards: SHAPE America’s National Physical Education Standards; the National Health Education Standards; and the Illinois Learning Standards for Physical Development and Health. The primary aim was to thoroughly examine how the standards are currently integrated. Research Question 1 (RQ1) asked, “What …

Using Descriptive Phenomenology To Understand Women In Leadership Navigating Work-Life Integration Before And After The Coronavirus Pandemic, Tara Elaine Scroggins Glass

Dissertations

This phenomenological study examined the lived experiences of women leaders as they integrated professional and personal roles before, during, and after the COVID-19 pandemic. Although leadership during crisis has been widely studied, limited research has explored how women leaders across diverse sectors negotiated organizational change while sustaining worklife integration. Guided by the Haddon et al. (2009) model of work-life integration and informed by role conflict, conservation of resources, and intersectionality theories, this study sought to capture the essence of women leaders’ experiences navigating unprecedented disruption. Data were collected through semi-structured virtual interviews with twelve women leaders representing healthcare, education, corporate, …

Sustaining The Workforce: Using Improvement Science To Improve Teacher Self-Efficacy And Well-Being, Stephanie A. Hagerty

Dissertations

Teacher stress remains one of the most pressing challenges facing the education profession, contributing to job dissatisfaction and teacher attrition. This dissertation examines the impact of an intervention designed to improve teacher self-efficacy and well-being. The Leadership Alphabet of Disposition Development Engagement and Reflection (LADDER) framework on teacher self-efficacy and well-being was implemented within a middle school setting. Improvement Science and Adaptive Leadership guided the case study. As defined by Hinnant-Crawford (2020), “Improvement Science is a methodic way of improving; it is distinct from evaluation or impact studies” (p. 23). The goal was to design, implement, and evaluate a strategy …

Using Improvement Science To Build Collective Teacher Efficacy Among Special Education And General Education Co-Teachers In A Title I Elementary School, Pauletha Monique Butts

Dissertations

In this improvement science dissertation, I examined how strengthening co-teaching approaches through targeted training on roles and responsibilities and scheduling time for collaboration builds collective teacher efficacy to improve student achievement for all learners. I conducted a root cause analysis using the Gately and Gately (2001) Co-teaching Rating Scales to better understand the barriers to effective co-teaching in a Title I elementary school in a midsize school district. I implemented two intervention cycles to support general and special education teachers in increasing collective teacher efficacy. The first intervention provided a one-day professional development seminar. The second intervention facilitated planning of …

Existence, Difference, And The Nigerian Woman: A Feminist Praxis Beyond Patriarchy, Hannah Yemisi Ajewole

Dissertations

This dissertation investigates the postcolonial condition of Nigerian woman through a critical philosophical engagement with feminist theory, focusing particularly on Simone de Beauvoir’s existentialism and Irigaray’s ethics of sexual difference. It interrogates the historical processes through which gender became the basis of hierarchy in the Nigerian society, arguing that colonial and patriarchal override precolonial forms of relationality—marked by dual-sex relationship and age-based hierarchies—into rigid, male-dominated structures of authority and representation. Drawing also on Oyèrónkẹ́ Oyěwùmí’s critique of western gender epistemologies, the work contextualizes the Nigerian woman’s experience within a broader matrix of colonial imposition, cultural displacement, and epistemic violence. This …

Assessing The Impact Of Social Network On Cyber-Argumentation, Bhargav Krishna Thota

Dissertations

Argumentation is one of the basic activities people perform in our society. People often spend a lot of time arguing about social, cultural, economic, financial, political, and other issues. Existing cyber-argumentation platforms facilitate large-scale discussions among participants and play an important role in the analysis of collective opinions and collective decision-making. However, they do not provide social networking capabilities and are not designed to be used in social networking environments. Social networks in argumentation platforms can reveal the patterns, shifts, and true relationships between the users in a discourse that influence the collective decision-making process, outlier opinions and so on. …

Peer Mentoring And Teacher Collaboration: A Case Study Of Practices And Self-Efficacy In A Rural Title I School, Whitney Ensley

Dissertations

This qualitative case study examined how peer mentoring influences teacher self-efficacy at a rural elementary school in southeastern Georgia. Using Bandura's self-efficacy theory and Wenger's communities of practice framework, the research investigated how teachers engage in mentoring relationships and how these practices contribute to professional growth.

Semi-structured interviews and reflection journals were conducted with ten elementary teachers representing diverse experience levels (1-21+ years) and grade levels. Findings revealed that meaningful peer mentoring occurred primarily through informal, trust-based relationships within grade-level teams rather than formal programs. Teachers engaged collaboratively in lesson planning, data analysis, and problem-solving.

Results demonstrated that peer mentoring …

Teacher Perceptions Of Culturally Relevant Pedagogy In High School Social Studies Classrooms: An Ethnographic Case Study, Sheronda L. Hardy

Dissertations

Historically, scholarly research regarding the education of Black, Indigenous, and People of Color (BIPOC) has been written through a deficit lens. Research that acknowledges positive learning experiences and outcomes is limited. This qualitative ethnographic case study aims to contribute to the growing body of social studies literature that offers insights into the need for asset-based pedagogies, such as Gloria Ladson-Billings' Culturally Relevant Pedagogy (CRP), as well as the impact that this framework has on BIPOC student populations. By exploring the perceptions of high school social studies teachers regarding CRP, teacher preparation programs, and professional development, this study of five teacher …

Breaking Barriers For Student Success: Leading In Challenging Times, Lisa Marie Dewey

Dissertations

This study explores how Diversity, Equity, and Inclusion (DEI) directors in one Midwestern state understand and lead equity initiatives in K–12 public education. The purpose of the study was to examine how DEI leaders make sense of their roles and the challenges of sustaining equity work within complex and often politicized systems. Using a basic qualitative methodology, the research examined how personal identity, sociopolitical context, and organizational structures shape DEI leadership. Critical Race Theory (CRT) framed the study, centering race, power, and systemic inequity in participants’ experiences.

Seven DEI directors participated in semi-structured interviews. Three key themes emerged. First, participants’ …

Educational Data Mining Techniques To Analyze Student Behavior In A Learning Management System, Mohamad Ali Bin Baba

Dissertations

This study identifies course-level patterns of LMS use in fully asynchronous graduate engineering management courses and examines the relationships between LMS use, course type, student satisfaction, and performance. Using the Community of Inquiry (CoI) framework and Moore’s interaction types, LMS metrics were mapped to learner–content, learner–learner, and learner–instructor interactions and clustered with k-means across nine courses. Profiles emerged—content-dominant, instructor-active, and balanced—showing that knowledge-based courses often emphasize content engagement, while application-based courses tend to be more balanced or instructor-driven. Satisfaction correlated most strongly with teaching/social-presence indicators (e.g., feedback cadence, discussion activity), whereas performance aligned with content-oriented engagement. The five strongest predictors …

Adsorption-Based Electrochemical Assay For Nucleic Acid Detection On 2d Nanomaterials, Prabhangshu Kumer Das

Dissertations

Electrochemical biosensing based on the adsorption of nucleic acids onto two-dimensional (2D) nanomaterials offers distinct advantages over conventional techniques, including enhanced sensitivity, selectivity, and simplified probe immobilization. Significant efforts have been directed toward developing sensing platforms that exploit the high surface area and unique physicochemical properties of materials such as graphene oxide (GO) and molybdenum disulfide (MoS₂) to achieve efficient signal transduction. This adsorption-based approach eliminates the need for complex surface modifications or labeling, as nucleic acids interact with 2D surfaces through π–π stacking, van der Waals forces, hydrogen bonding, electrostatic interactions, and ion bridging.The efficiency of nucleic acid immobilization …

A Line In The Sand: Investigating Late Pleistocene-Holocene Stratigraphy And Large-Scale Morphodynamic Evolution Along The Mississippi Coast, Carrie Miller

Dissertations

The imprints of past geomorphic evolution are embedded in the geologic record, providing valuable insights into the mechanisms that induce changes within coastal systems and the magnitude of those changes. Large-scale paleo morphodynamic evolution often occurs due to cyclonic activity, variations in sediment supply, and relative sea-level rise. The landscape of the U.S. Gulf Coast reflects a combination of erosional, depositional, hydrological, and climatic factors that remain of ongoing interest to geoscientists seeking a holistic understanding. Low- lying coastal plains, such as those along the Mississippi and Louisiana coasts, are particularly susceptible to future sea-level rise. Projected sea-level rise over …

Sex And Danger, Airborne Ranger: A Historical Analysis Of G.I. Songs, Jody Calls, And Marching Cadences, Travis G. Salley

Dissertations

Military marching cadences have long served as a core feature of basic combat training, reinforcing cohesion, discipline, and esprit de corps. Tradition attributes their origin to a Black soldier, Private Willie Duckworth, who lifted the spirits of his unit with an improvised chant during a 1944 forced march. The chant soon gained national attention and was formally adopted into Army training through the efforts of Colonel Bernard Lentz—Duckworth’s commanding officer and the author of the Army’s close order drill manual. Their relationship, framed by military hierarchy and racial inequality, reflects broader American patterns where Black cultural forms gain institutional legitimacy …

Fostering Connection And Empowerment: Amplifying Women’S And Indigenous Voices Through Place-Based Education, Inclusive Narratives, And Empathy Building, Paige N. Jones

Dissertations

The diverse experiences, perspectives, and identities of people across groups shape history. Educators and heritage professionals bear the responsibility of teaching historical content in ways that ensure all feel represented, valued, and safe. Despite these aims, the experiences and contributions of women and Indigenous Peoples have long been underrepresented in social studies curricula and heritage programming.

This dissertation integrates two complementary studies that examine how harnessing the power of place and centering the narratives and oral histories of underrepresented groups can advance connection and empowerment through educational experiences. The first study utilized focus group interviews with educators and heritage professionals …

Patriarchal Logics In Entrepreneurial Ecosystems And Outcomes For Female Entrepreneurs, Alexandria Krause Matlack

Dissertations

This dissertation examines how patriarchal logics shape the efficiency of funding for female entrepreneurs by comparing two U.S. entrepreneurial ecosystems (EEs) within the same state: Kansas City and St. Louis. Although these EEs are geographically proximate and structurally comparable, St. Louis has nearly twice as many women-led ventures as Kansas City receiving institutional capital. Drawing on 31 semi-structured interviews, the study includes 20 entrepreneurs, 11 from Kansas City (5 women, 6 men) and 9 from St. Louis (4 women, 5 men), of whom are CEOs of startups founded between 2014 and 2022 and recipients of institutional funding (e.g., grants, angel, …

Understanding The Lived Experience Of Mental Health Following An Alpha-Gal Syndrome Diagnosis: A Phenomenological Study Grounded In Maslow’S Hierarchy Of Needs, Heather L. Hargis

Dissertations

Alpha-gal syndrome is a tick-borne food allergy that triggers delayed allergic reactions to mammalian products and profoundly alters daily life. While growing research examines the physiological aspects of alpha-gal syndrome, little is known about its psychological impact. This phenomenological study explored the lived experiences of individuals with alpha-gal syndrome to understand how the condition influences mental health through the lens of Maslow’s Hierarchy of Needs. Data was collected through semi-structured virtual interviews with adults medically diagnosed with alpha-gal syndrome. Thematic analysis revealed significant challenges in meeting Maslow’s lower-tier needs—physiological, safety, and love/belonging—due to dietary restrictions, medical uncertainty, social isolation, and …

Impact Of Video Laryngoscopy On Pediatric And Neonatal Transport Intubation Success, Brooke A. Shahriary

Dissertations

Abstract

Problem: Airway management is the primary intervention for halting clinical decompensation in pediatric and neonatal patients. In cases where patients require invasive support, endotracheal intubation (ETI) is the preferred method of airway securement. Unfortunately, ETI is a challenging skill to develop, especially when caring for children and infants, resulting in increased rates of failed ETI attempts which can result in worse outcomes. ETI success rates in the population of interest have fallen in recent years, nationally and among the clinicians in this project. The institution established a goal for first pass success (FPS) and video laryngoscope (VL) was introduced …

The Impact Of Teachers' Mathematics Qualifications On Student Proficiency, Riaz H. Zaidi

Dissertations

Schools across the United States face persistent challenges in strengthening mathematics and science education. The present study investigates the relationship between mathematics teachers’ qualifications and their students’ performance on standardized assessments, using data from a Midwestern urban school district’s ACT mathematics scores. Findings are discussed within the broader context of Science, Technology, Engineering, and Mathematics (STEM) education and national efforts to enhance competitiveness among industrialized nations. Despite the presence of leading universities and colleges, U.S. students continue to rank near the middle internationally in math and science achievement, according to the Pew Research Center. Contributing factors include disparities in teacher …

Enhancing Early Sepsis Detection: Outcomes Of An Educational Program In An Emergency Department, Courtney Mettes

Dissertations

Systemic inflammatory response syndrome progressing to sepsis presents a significant challenge in emergency departments (ED), where delayed recognition and treatment increase morbidity, mortality, and costs. This project evaluated whether implementing the Evaluation for Severe Sepsis Screening Tool (SSST) alongside an existing sepsis best practice advisory (BPA) could reduce the interval from sepsis BPA alert to initiation of lab work and treatment in adult patients (18 years and older). A quasi-experimental design compared retrospective control data (n = 81, Group 1) with prospective project data (n = 34, Group 2) over eight weeks. ED nursing staff received specific education on …

Increasing Pediatric Hpv Vaccination Rates, Brooke A. Nicholas

Dissertations

Increasing Pediatric HPV Vaccination Rates

Abstract

Problem: The human papillomavirus (HPV) is a sexually transmitted infection that affects more than 80% of the population within the United States (Eisenhauer et al., 2020). HPV can develop into cervical, anogenital, and oropharyngeal cancers (Eisenhauer et al., 2020). About 4,000 individuals die from cervical cancer alone each year (O’Leary, 2022). The HPV vaccine, though recommended by the ACIP and AAP, is below national vaccination rates in comparison to other vaccines (O’Leary, 2022).

Methods: This quality improvement project is a non-randomized controlled trial that observed HPV vaccine dose completion rates for patients aged 9-14 …

Development And Characterization Of Sustainable Aluminum Metal Matrix Composites With Date Palm Agro-Residues As Reinforcement, Ansar Kareem

Dissertations

Aluminum Matrix Composites (AMCs) are extensively used in various industrial applications owing to their exceptional mechanical, material, and tribological properties. This led to the development of AMCs with every possible aluminum alloy as matrix, incorporated with various reinforcement materials to achieve desired material properties. There has been an increasing trend in the utilization of agricultural and industrial waste products as reinforcement material in AMCs. Date palm trees produce huge quantity of agricultural waste in different forms. Usually, these wastes are burned or disposed of in landfills which cause environmental pollution. Date palm agro-wastes can be incinerated to produce date palm …

Problems In Extremal Graph Theory And Spectral Graph Theory, Fareeha Jamal

Dissertations

Spectral graph theory is a subfield of algebraic graph theory that studies the matrices associated with graphs. It lives at the nexus of Linear Algebra and Combinatorics. Many intriguing results in the domains of Matrix Theory and Combinatorics have come from studying the eigenvalues of graph matrices; in fact, several open problems in both areas have been resolved. Beyond its theoretical appeal, spectral graph theory has found meaningful applications in theoretical chemistry, particularly in the mathematical classification of chemical graphs. These classifications underpin quantitative structure–property relationships (QSPRs), facilitating the prediction of physicochemical properties such as enthalpy of vaporization, molar refractivity, …

Rehabilitation Of Reinforced Concrete Columns Pre-Damaged By Corrosion Using Advanced Composite Materials, Feras Farid Abu Obaida

Dissertations

Reinforced concrete (RC) columns exposed to aggressive environments are highly susceptible to corrosion-induced deterioration, resulting in significant reductions in load-carrying capacity. This research investigates the structural performance of RC circular short columns with varying levels of corrosion damage and evaluates the effectiveness of two composite-based repair techniques, namely carbon fabric-reinforced cementitious matrix (C-FRCM) and carbon fiber-reinforced polymer (C-FRP) composites, combined with concrete cover replacement. The study aims to establish these methods as practical solutions for rehabilitating corrosion-damaged columns under concentric and eccentric loading conditions. The experimental program included 30 RC column specimens tested in two phases. Phase I involved thirteen …

How Do Emirati University Students Develop Their Academic Biliteracy? A Mixed-Method Study, Eman Kamel Rababa

Dissertations

Framed by Hornberger’s continua of biliteracy model, this study investigated the developmental dynamics of academic biliteracy among Emirati university students. The research employed a sequential mixed-methods design, conducted across three public universities in the UAE. In the initial qualitative phase, interview data were collected from 30 students. Informed by these findings and the extant literature, a quantitative survey was then developed and administered to a sample of 299 students from various disciplines. The qualitative data were analyzed using reflexive thematic analysis, while the quantitative data were examined using advanced statistical analyses, including structural equation modeling. Three primary themes emerged from …

Client And Clinician Priorities For Same-Day Prep And Doxy-Pep Awareness, Uptake, And Persistence In Primary Care, Nathaniel Albright

Dissertations

Approximately 70% of all new human immunodeficiency virus (HIV) infections are among populations of sexual and gender minorities (SGM) and are primarily attributable to sexual contact. Currently, only 26% of the U.S. population who would benefit from HIV preexposure prophylaxis (PrEP) are prescribed this effective biomedical HIV prevention strategy. Biomedical prevention strategies for bacterial sexually transmitted infections (STI) like doxycycline postexposure prophylaxis (doxy-PEP), are a vital component to the successes of ending the HIV epidemic given the well-known association between STIs and risk for HIV infection. In this multiple methods study, we leveraged group concept mapping and conducted focus groups …

Exploring The Experience Of Nursing Students During Their Community Health Nursing Clinical Placement At Schools, Lina Ghosn Nouwayhed

Dissertations

Community health nursing is an exciting, challenging, and evolving field that creatively integrates various areas of nursing practice with public health knowledge (Stanhope & Lancaster, 2016). Learning in practical settings is invaluable for student nurses; that is why clinical placements account for 50% of nursing curriculum requirements (Henderson, 2011). At Makassed University of Beirut, the community nursing practicum takes place in schools, with school nurses serving as mentors during these placements.

This research study aims to:

• Explore the experiences of student nurses during community clinical practice.
• Develop guidelines to enhance learning during community clinical practice.

The study sample consisted of …

Ai-Enabled Multi-Layer Security Operations: A Combined Siem, Ids, And Threat Intelligence Model For Adaptive Cyber Defense, Mohamad Khayat

Dissertations

This dissertation presents a comprehensive framework for the evolution of Security Operation Centers (SOCs) through the integration of advanced artificial intelligence (AI), blockchain, and optimization techniques. Motivated by the increasing complexity of cyber threats and the limitations of traditional reactive SOC strategies, this work begins with a systematic literature review that identifies critical gaps in current SOC operations. Based on these insights, a reference architecture is proposed to guide the integration of intelligent components into SOC environments. To address the challenge of secure and trustworthy information sharing, a blockchain-based threat intelligence platform is developed, leveraging Byzantine Fault Tolerance and Zero-Knowledge …

Experiences With Social Media Social Comparison In Women Ages 18-28: A Qualitative Study, Olivia Oakley Dr.

Dissertations

This qualitative study aimed to understand young women’s experience using social media and their reported mental health connections, such as self-esteem and comparison. As inferred in recent research, a wide range of social media content is being produced and consumed, from promoting the “thin ideal” to newer campaigns advocating for body positivity (Cohen et al., 2019, Grabe et al., 2008; Groesz et al., 2002). In a time where there is so much online content to consume, it is important to continue to evaluate the lived experiences of those using social media. This phenomenological qualitative research captured the lived experiences of …