Digital Commons Network^™

Effectiveness Of Picture Exchange Communication System On Functional Communication For Saudi Children With Autism Spectrum Disorder (Asd), Mohammed Albahrani

Electronic Theses and Dissertations

Autism Spectrum Disorder (ASD) is a complex neurodevelopmental disorder characterized by restricted interests, repetitive or inflexible behaviors, and challenges with communication and socialization (Flannery & Wisner-Carlson, 2020). Children with expressive communication disorders, including those with ASD, can benefit from using Augmentative and Alternative Communication (AAC) as a tool to improve their communication skills (Chazin et al., 2016). The AAC approach helps them learn and communicate more effectively by addressing various needs, such as making requests, commenting, or responding to questions (Mirenda, 2001). Many families, special education classrooms, and inclusive settings have adopted the Picture Exchange Communication System (PECS), an evidence-based …

Counselor Perspectives On Substance Use Treatment In Pennsylvania As Medical Cannabis Laws Evolve, Renee L. Ludwig

Electronic Theses and Dissertations

Cannabis, once primarily regarded as a recreational or “party” drug, has undergone a significant shift in public and medical perception over the past two decades. It is now increasingly recognized as a therapeutic agent prescribed within clinical settings. While substantial research has examined the general use of medical cannabis, relatively little attention has been given to its implications for substance use counselors treating clients who use medical cannabis during treatment for substance use disorders. The purpose of this study is to explore the perceptions of substance use counselors regarding client use of medical cannabis and to investigate how such use …

(Un)Intended Consequences Of Race In Medicine: The Ethics Of Race-Based Medical Practice And The Perpetuation Of Structural Racism, Allegra Merriweather

Electronic Theses and Dissertations

This dissertation proposes that race-based medicine acts as a form of structural racism that is ethically indefensible. While it may be claimed to be a neutral diagnostic tool, the medical use of race as a biological proxy only further enforces the very hierarchies it purports to remediate, reinscribing inequity from conception to death. Building off Jacques Ellul’s work on Technique, we interpret race-based medicine as a self-perpetuating system that values procedural expediency over moral accountability. In nine chapters, the analysis follows the ways this technique is manifested in genetics and assisted reproduction, where commodified racial selection preserves social hierarchies; in …

Navigating The Digital Divide: A Quantitative Analysis Of The Digital Literacy Skills Of College Students Through The Lens Of Technological Self-Efficacy, Robert M. Spisak Jr

Electronic Theses and Dissertations

This quantitative dissertation addresses the digital literacy skills gap among college students and their ability to effectively use digital technologies in higher education. While many students arrive with technical skills, gaps exist in their ability to critically assess information, ethically engage with digital content, and apply these competencies across academic and professional contexts. Grounded in the framework of technological self-efficacy, which emphasizes the belief in one’s ability to perform digital tasks, this study examines both the digital literacy skills student bring from high school and their self-perceptions of those skills during college. This study was guided by the following research …

Not Always Welcomed, Lavaughn Wesley

Electronic Theses and Dissertations

Abstract

This qualitative dissertation explores the systemic barriers faced by adjudicated and long-term suspended youth during their reentry into the public school system, focusing on a local urban community in Pennsylvania. Through the lens of Institutional Complexity Theory, this study examines how interagency disconnection, implicit bias, inequitable disciplinary practices, and inadequate support structures contribute to the marginalization of historically underserved students, particularly Black youth, students with disabilities, and those from low-income households.

The research is driven by two central questions:

(1) What are the barriers for adjudicated youth during the reentry process?

(2) How can the home school reentry process …

Family Functioning And Adolescent Outcomes In Wilderness Therapy: A Quanitative Analysis Of Change And Predictive Relationships, Elizabeth Santone

Electronic Theses and Dissertations

This study explored the impact of wilderness therapy on adolescent and family functioning using archival data from a licensed outdoor behavioral healthcare program. The purpose of this research was to examine both individual and systemic changes over the course of treatment and to explore whether improvements in family functioning were associated with youth outcomes. The final sample included 1,293 adolescents who completed the Youth Outcome Questionnaire (Y-OQ 2.01) at intake and discharge. A subset of 454 adolescents and their caregivers also completed the Family Assessment Device (FAD) at both time points. Paired-sample t-tests revealed statistically significant improvements in both adolescent …

Hoarding And The Hoarded Home: A Phenomenological And Psychoanalytic Study, Brianna Stich

Electronic Theses and Dissertations

While research on hoarding tends to isolate hoarders from the homes they hoard and in which they live, the hoard and the hoarder share a life in the home. This study explores how hoarders live with and live through their hoard at home. It combines psychoanalysis and phenomenology within a unique methodological framework to provide a hermeneutic reading of the psychological significances of the hoarded home. In this study, the contemporary conceptualization of hoarding is historically situated and critiqued from a phenomenological perspective, and the view that hoarding is a single, behaviorally-defined syndrome that is explainable by a cognitive-behavioral model …

Discovery Of The Multi-Ion Bridge Intermediate: A Computational Exploration Of The Mechanism For Azomethine Ylide Formation From N-Oxides, Martin J. Neal

Electronic Theses and Dissertations

Density functional theory (DFT) provides a method for calculating the ground-state energies of complex molecular systems through evaluating the electron density instead of the full wave function. When results match either experimental outcomes, calculations with DFT offer a computationally efficient method to help explain chemical phenomena. The transformation of tertiary amine N-oxides to azomethine ylides, a simple route to the precursor for 1,3-dipolar cycloadditions that result in the pyrrolidine scaffolds found in natural products, has received only minimal attention due to concerns that its mechanism includes a highly electrophilic intermediate. Utilizing DFT to model the mechanism of the conversion …

Likes For Love: Examining The Relationship Of Sociocultural Factors On Social Media Influences Of Instagram Use For Young Black Women, Cheria S. Jackson

Electronic Theses and Dissertations

In recent years there has been a push toward studying ethnic minority women related to the psychological implications of image and beauty, as historically the focus has been on the experiences of European women (Awad et al., 2015). Black women must process sexual development, attitudes, and behaviors through the lens of the sexual scripts and stereotypes of their ethnic group and must negotiate between mainstream and culture specific norms of sexuality (Daniels and Zurbriggen, 2016; Jerald et al., 2017). The presence of these scripts signifies a difference between Black women and other races about how they may internalize and react …

The Experience Of African American Male Counselor Educators Navigating Racial Battle Fatigue, Quincy J. Stephenson

Electronic Theses and Dissertations

A qualitative phenomenological approach was used in this research to explore the lived experiences of African American male counselor educators (AAMCEs) in historically or predominantly White universities who have obtained tenure and promotion. The need for equitable support, recruitment, and retention of faculty of color in counselor education has received more attention from universities in recent years. Although some advancement has occurred, AAMCEs continue to be underrepresented in academia, especially counselor education. There has been research concerning the impact of racism on and resilience of AAMCEs; however, there is a lack of research concerning how this specific population navigates racial …

Child Care For Student Parents: A Critical Discourse Analysis Of Policy And Politics In Nys, Elizabeth M. Starks

Electronic Theses and Dissertations

This policy analysis dissertation explores the complex and multifaceted challenges that exist within New York State’s early childhood care and education (ECCE) system by critically examining the amendment of one NYS social services law. Guided by Fairclough’s Critical Discourse Analysis, this study examines two research questions (under one overarching question):

1. What language and arguments are effective in making change in Early Childhood policy in NYS?
   1. What is the policy discourse surrounding the amendment of subdivision 1 of section 410-w social services law in NYS?
   2. What is the political discourse surrounding the amendment of subdivision 1 of section 410-w social services …

The Other Side Of The Wall: A Study On The Impact Of Paternal Incarceration On African American Children, Chance M. Wideman

Electronic Theses and Dissertations

This qualitative dissertation explores the long-term psychological, relational, and systemic impacts of paternal incarceration on adult children. Guided by Adverse Childhood Experiences (ACE) Theory, Attachment Theory, and Family Process Theory, this study examines two research questions:

(1) What types of childhood trauma are associated with paternal incarceration?

(2) How does the childhood trauma associated with paternal incarceration impact one in adulthood?

The study draws on three in-depth narrative interviews with adults who experienced paternal incarceration in childhood. These interviews, framed as dialogic and reflexive spaces, illuminate the deep and layered consequences of incarceration across the lifespan.

Five central findings emerged: …

Sue Gunter And The Battle For Equity In Women’S Athletics At Sfa, Derek S. Allen

Electronic Theses and Dissertations

From the 1950’s through the 2000’s, women’s college basketball would move from a category of inappropriate activity to selling out large arenas and being broadcast to millions of viewers on national TV. Such a result came largely from federally mandated stipulation contained within Title IX, accelerated a fight for equity and acceptance, and advanced the cause for women’s athletics more than any other initiative. However, that alone would have failed to grow the popularity of a sport such as women’s basketball if it did not produce a quality product for fans. Beyond the need for resources comparable to men’s athletics, …

Gypsy Spirit Suite: An Original Jazz Manouche Composition For Large Ensemble, Nicholas Knirk

Electronic Theses and Dissertations

This thesis presents an original jazz manouche musical composition, Gypsy Spirit Suite, arranged for a large ensemble comprising winds, horns, strings, guitar, cimbalom, vibraphone, and percussion. The composition integrates jazz manouche (gypsy jazz) elements, such as chromatic passing chords, virtuosic melodic runs, and la pompe rhythm, into a large ensemble. Modal interchange, extended harmonies, and fusion with genres like latin and funk generate interest and reflect contemporary jazz manouche evolution. The written thesis supports the composition through a detailed analysis of jazz manouche harmonic schema, instrumental techniques, idiomatic passages, and orchestration techniques that blend jazz and classical genres. By …

A Sedimentary Source Of Rare Earth Elements In The North Atlantic, Rylee D. Lindner

Electronic Theses and Dissertations

Individually and as a series, the Rare Earth Elements (REEs) are powerful geochemical tracers of environmental processes. However, ambiguities in the oceanic budgets of the REEs hamper their application. Growing evidence suggests a sedimentary benthic flux via the pore water is the major source of REEs to the ocean, with extrapolated estimates of this flux being equivalent in magnitude to that “missing” from modern budgets. However, existing pore water REE data are available from only a few locations globally with no representative dataset from the open North Atlantic. This data scarcity limits our ability to constrain flux estimates and understand …

Thermal And Non-Thermal Mass Transport Effects In Plasmon-Assisted Electrochemistry., Md Al Amin

Electronic Theses and Dissertations

Plasmon-assisted electrochemistry has received attention due to its effects of hot charge carriers, photothermal heating, and enhanced electromagnetic field impact on electrochemical transformation. These effects have contributed to lowering the onset potential and increasing the reaction kinetics. Numerous studies have been employed to differentiate the effect of photothermal heating from hot charge carriers on the electrochemical reaction. Most of these studies have been employed to measure and quantify the photothermal heating effects at equilibrium temperature; however, localized heating from the incident light does not result in homogeneous heating across the electrochemical cell. Many studies investigating the photothermal heating effect in …

A Persistent Homology Framework For Scrna-Seq: Assessing Clustering Robustness And Quantifying Preprocessing And Integration Effects On Topological Features., Jonah Daneshmand

Electronic Theses and Dissertations

As single-cell RNA sequencing (scRNA-seq) data expands, robust methods for integrating diverse datasets are critical. This dissertation applies Persistent Homology (PH), a technique from Topological Data Analysis (TDA), to a collection of scRNA-seq datasets spanning eight tissue types to quantify how data integration affects topological features and biological interpretability. We assessed global topological structure using Betti curves, Euler characteristics, and persistence landscapes across raw, normalized, and integrated data representations. Our analysis revealed a performance inversion: while conventional methods excelled on unintegrated data, high-granularity topological methods, particularly those sensitive to global data structure, became superior after integration. This suggests a synergy …

Increasing Histidyl Dipeptides In Skeletal Muscle Preserves Muscle Mass And Function In Heart Failure., Mamata Hiraman Chaudhari

Electronic Theses and Dissertations

Introduction: Heart failure is a systemic disease associated with multiple comorbidities, such as skeletal muscle wasting and cardiopulmonary disease. Muscle wasting in heart failure patients is a severe comorbidity associated with decreased exercise capacity and poor quality of life. Previous reports show that oxidative stress is increased in the skeletal muscle of heart failure patients, which can directly lead to muscle wasting. However, antioxidant intervention in these patients was unable to improve cardiac function and consequently had no effect on muscle wasting. Although oxidative stress is the primary driver of skeletal muscle atrophy, no attempt has been made to examine …

Orientation Or Disorientation? A Critical Content Analysis Of Refugee Cultural Orientation Curriculum., Amanda Jean Lacey

Electronic Theses and Dissertations

Cultural Orientation (CO) is a free, legally mandated, multi-session program intended to provide refugee newcomers ages 18-65 with the knowledge, skills, and attitudes needed to integrate and achieve self-sufficiency in the United States. Despite occurring at a critical time in the resettlement process, there has been almost zero scholarship analyzing the content or efficacy of domestic CO curriculum. This dissertation addresses that gap by performing a Critical Content Analysis (CCA) on The Road Ahead (TRA), the de facto official CO curriculum promoted through the Cultural Orientation Resource Exchange (CORE). Framed by a postcolonial perspective and informed by the …

An Exploration Of Factors Associated With Sport Fan's' Choice Of Ticketing Platforms., Jacob Owsley

Electronic Theses and Dissertations

This research study examined key experiential and demographic factors associated with sport consumers’ choice of online ticketing platforms. The research applied the technology acceptance model (TAM) to examine how trust, official sponsorship, user interface design, and price consciousness are associated with consumers’ choice between different online ticketing platforms.. Data were collected from 312 adult sport consumers in the United States through an online survey distributed across six Reddit communities focused on ticketing or research activities. Participants included individuals who bought tickets to professional sports events and attended these events during the last 12 months. The expert review process and two …

The Autonomic And Arrhythmogenic Effects Of Gestational E-Cigarette Exposure., Brittany Rachelle Reynolds

Electronic Theses and Dissertations

Introduction. E-cigarettes (e-cigs) have been shown to be pro-arrhythmic in both human and male rodent studies; however, little is known about how e-cig use impacts patients with a predisposed heightened risk for arrhythmias, including pregnant women. Both pregnancy and e-cig use have independently been shown to increase heart rate, diminish heart rate variability, and increase ventricular premature beats, which is suspected to be due to sympathetic dominance. Importantly, β-blockers have been shown to reduce sympathetic activity, reduce heart rate, increase HRV, and reduce arrhythmias. Thus, the use of β-blockers may help prevent adverse health effects driven by sympathetic dominance from …

What Will It Take To Keep You? A Phenomenological Investigation Of Teacher Career Decisions In Title I Elementary Schools., Tonya Nicole Holt

Electronic Theses and Dissertations

This qualitative phenomenological study explored the factors influencing teachers’ decisions to remain in or leave Title I elementary schools in Kentucky. Grounded in Herzberg’s Motivation–Hygiene Theory, the study examined the interplay of intrinsic motivators and extrinsic conditions that shape teacher satisfaction, commitment, and attrition. Twelve current Title I teachers participated in semi-structured interviews designed to capture their lived experiences and perceptions of work in high poverty contexts. Analysis revealed a balance of pull factors—such as purpose, relationships, and supportive leadership—and push factors—including workload, resource limitations, and inadequate administrative support. Leadership quality emerged as the central variable mediating these forces. Teachers …

Thermal Heterogeneity And Lithium Plating During Fast Charging Of Lithium-Ion Battery., Ayodeji Avis Adeniran

Electronic Theses and Dissertations

Presently, widespread adoption of electric vehicles (EVs) is hindered by challenges associated with XFC, including heat generation, lithium plating, and accelerated battery degradation. This dissertation addresses these barriers through two coordinated themes—lithium plating and thermal management—spanning four manuscripts that integrate operando diagnostics, physics-based simulation, and module-level design optimization. The first theme seeks a fundamental investigation into the dynamic interplay between temperature heterogeneity and lithium plating during fast charging, a phenomenon that poses significant limitations on the performance of graphite-based anodes. Firstly, a custom operando cell with a sapphire window was designed to enable synchronized MWIR thermography and optical imaging of …

Examing Fear Conditioning/Extinction And The Role Of The Amygdala In Human Neuroimaging., Olivia Cook

Electronic Theses and Dissertations

Fear plays a crucial role in survival but can lead to psychological disorders when dysregulated. Fears can be innate due to evolutionary relevance or learned through associative processes, where predictive accuracy of threat is pivotal. Disruptions in fear neurocircuitry contribute to anxiety disorders, characterized by heightened activation and impaired learning. Fear conditioning and extinction paradigms based on classical Pavlovian conditioning have been used to study mechanisms underlying fear learning. Using this experimental model, fear networks in rodents have been described in detail with clear distinction between conditioning and extinction neural functioning. Yet, there is no consensus on the neurobiological processes …

Depth-Averaged Two-Dimensional Hydrodynamic Modeling In Headwater Channel And Floodplain Design., Jesse Dylan Robinson

Electronic Theses and Dissertations

In the channels and floodplains of inland waterways the hydrodynamic forces of floods destroy property and infrastructure, threaten lives, and damage aquatic habitat. Flood simulations using robust and efficient depth-averaged two-dimensional hydrodynamic models (2D models) can be interpreted to design effective solutions for areas vulnerable to damage. The reliable interpretation of 2D models for use in design is improved here through direct comparison of 2D model output to observed flood events at 6 headwater research sites. Instrumentation was used for model calibration and to define the surface hydrodynamics at sites with confined flows, wide and shallow flows, at vertical steps, …

Experiences Of Research Administrators With Faculty Researchers In Sponsored Project Compliance., Adrienne M. Lindsay

Electronic Theses and Dissertations

The purpose of this study was to examine how central office research administrators perceive and describe their professional interactions with faculty researchers, and how those relationships may impact compliance with sponsored project requirements in United States higher education institutions. Cohen et al.’s (1972) organized anarchy theory and Schein’s (2010) organizational culture theory provided a foundational context for understanding research systems within higher education institutions and the social environment in which research administrators navigate potentially contentious roles, both facilitating research and stewarding compliance for the institution and the sponsor. Findings emerged around specific challenges faced by research administrators, which included role …

Risk And Protective Factors For Suicidal Thoughts And Behaviors For Black Adolescent Males With Exposure To Adverse Experiences Post-Covid 19 Pandemic: Findings From The 2023 National Youth Risk Behavior Survey., Amanda Minogue

Electronic Theses and Dissertations

Suicide is the second leading cause of death among adolescents aged 10-24 in the United States. In 2022, 784 Black adolescent males died by suicide. Recent studies have found that traditionally common associations of risk factors of suicidal thoughts and behaviors are not experienced by Black adolescents, challenging how to determine and detect risk. This dissertation reviewed the variables in the national Youth Risk Behavior Survey that closely align with risk and protective factors of suicidal thoughts and behaviors, and the interaction between these and adverse experiences in Black adolescent males. Results of this study found that among the 9 …

The Role Of Fast-Food Consumption, Residential Fast-Food Exposures, And Urinary Essential Trace Heavy Metals In Colorectal Cancer (Crc) Outcomes., Jeevan Adhikari

Electronic Theses and Dissertations

Background: Colorectal cancer (CRC) is a public health concern. Within the United States (US), fast-food consumption and environmental exposure to heavy metals have increased. The impact of fast-food consumption frequency from fast-food restaurants, residential fast-food exposures, and urinary essential trace heavy metals in relation to CRC outcomes have not yet been rigorously evaluated in the US. Methods: Within the LEAPS-CRC study, we used geographic information systems (GIS) and logistic regression to study the association of fast-food consumption, residential proximity to a fast-food outlet, and urinary essential trace metals with CRC incidence. Additionally, within Kentucky Cancer Registry (KCR) CRC cases, the …

Genetic Identification Of A Rapidly-Adapting Low-Threshold Mechanoreceptor Innervating Fungiform Papillae., Thomas Alexander Myers Ii

Electronic Theses and Dissertations

Mechanosensory innervation of the oral cavity enables us to detect the texture and location of the foods we consume. Our goal was to find a genetic identifier for a mechanoreceptive subtype. Toward this goal, we examined neurons expressing the neurotrophin receptor TrkC, parvalbumin (Pvalb), and the glutamate transporter Vglut3. Because different papilla types contribute to food detection in different ways, we examined the innervation patterns of these neuron subtypes. We found that Pvalb+ and Vglut3+ neurons were fungiform papilla specific, where TrkC innervated both papilla types. We examined the anatomy of the three genetic populations, finding that the Pvalb+ neurons …

Residential Segregation And Breast Cancer In Louisville: Impact Of Race And Contextual Factors On Advanced-Stage Diagnosis, Delayed Treatment, And Disease-Specific Mortality., Toheeb Ajani Mustapha

Electronic Theses and Dissertations

Female breast cancer (BC) remains the most commonly diagnosed non-skin cancer and the second leading cause of cancer death among U.S. women. Despite advances in detection and treatment, substantial inequities in BC outcomes persist, driven in part by structural forces such as residential segregation. This dissertation examined the relationship between residential segregation, BC outcomes, and key contextual factors in Louisville, Kentucky. Using data from the Kentucky Cancer Registry, American Community Survey, CDC’s Population-Level Analyses and Community Estimates, and the National Neighborhood Data Archive, the study tested two hypotheses: (1) higher Black/low-income segregation is associated with elevated risks of adverse BC …