Digital Commons Network^™

Smear Layer Removal By Irrigation Adjuncts: A Scanning Electron Microscopy Study, Triet D. Vuong

Theses and Dissertations

Purpose: This study aimed to compare the intracanal smear layer removal ability of two adjunctive irrigation modalities: the AdvErL EVO laser, the GentleWave^® Procedure, and their combination, after minimally invasive canal instrumentation.

Methods: Forty molars were accessed, the mesiobuccal canals of maxillary and mandibular molars were prepared up to apical size 25.04 using rotary instrumentation, then irrigated using: conventional needle irrigation (CNI), laser-assisted irrigation (LAI), the GentleWave^® Procedure (GWP), and LAI followed by GWP (LAI+GWP). The teeth were then decoronated and split longitudinally. One-half of each root was selected for preparation and analysis under scanning electron microscope. Blinded …

Through The Lens Of Social Media: Examining The Relationship Between Exposure To Social Media Videos Of Police Misconduct And Perceptions Of Legitimacy And Cooperation With Campus Police, Kamal Alhassan

Theses and Dissertations

This dissertation examines how exposure to social media and internet news videos depicting police misconduct influences college students' perceptions of campus police legitimacy, procedural justice, and willingness to cooperate. Although prior research has demonstrated the impact of media portrayals on perceptions of municipal police, limited attention has been given to campus policing contexts. Guided by Tyler’s process-based theory of police legitimacy and Gerbner’s cultivation theory, this quantitative study surveyed 400 students at a large public university in the Southeastern Mid-Atlantic region. Measures included self-reported viewing and engagement with police misconduct content on social media, internet, and traditional media platforms, as …

The Bacteriostatic, Regenerative, And Immunomodulatory Properties Of Extracellular Matrix Particles For Lung Injury, Keera P. Rhoads

Theses and Dissertations

Acute respiratory distress syndrome (ARDS) is a prevalent, life-threatening lung condition, affecting nearly 200,000 Americans annually, with a 40% international mortality rate. There is no cure for ARDS, and current pharmacological treatments have limited effectiveness. Symptoms can be mitigated with mechanical ventilation, though this often leads to ventilator-induced lung injuries (VILI) and puts critically ill patients at risk of infections, including ventilator-associated pneumonia (VAP). A promising therapeutic is the extracellular matrix (ECM), a complex network of structural proteins and bioactive molecules that has been shown to have anti-inflammatory properties and prevent fibrosis. We aim to utilize the regenerative and immunomodulatory …

Sink Into Serenity: Exploring The Healing Properties Of Bathing Culture, Kristopher P. Mckeever

Theses and Dissertations

In an effort to deconstruct the ideas of privacy as they’re understood in the west, this project’s concept revolves around levels of transparency and how that can eliminate barriers and feelings of shame surrounding the human body, fostering a greater sense of community through shared vulnerability.

The Dance Of Human Affairs: Public Administration Leaders’ Perceptions Of Candor’S Impact On A Sense Of Belonging, Aaron Dimmock

Theses and Dissertations

This dissertation examines public administration leaders’ perceptions within the executive branch of the state government studied to determine if the components of radical candor, care personally and challenge directly, are associated with the sense of belonging in a public administration setting. Questions from surveys conducted by the state government studied were used to create the variables analyzed in this study. To the researcher’s knowledge, this is the first study to apply components from the Radical Candor® Framework to determine a relationship with sense of belonging in a public administration setting.

The significance of these components was tested through a quantitative, …

Identification Of Mechanisms Associated With Electronic Nicotine Delivery System Use For Weight Control In Young Adults, Gabrielle Maldonado

Theses and Dissertations

Electronic nicotine delivery system (ENDS) use continues to rise among young adults in the United States, raising public health concerns as the harmful effects of ENDS continue to rise while tailored cessation programs lag. Weight control motives may drive ENDS initiation and frequent use, particularly among sexual and gender minority (SGM) populations, who report higher ENDS use, body dissatisfaction, and disordered eating behaviors than those who identify as heterosexual and cisgender. Understanding these behaviors, their mechanisms, and at-risk populations is critical for improving public health. Seven hundred and eight young adults (ages 18–30; M = 26, SD = 3.3) reporting …

Sunlight, Veiled, Sina Ahmadkhani

Theses and Dissertations

Sunlight, Veiled is a narrative short film exploring themes of displacement, class, and identity through the lens of an Iranian intern navigating a morally ambiguous company party in the United States. This written component traces the evolution of the project from development through post-production, while reflecting on the personal and political frameworks that shaped the creative process. Through cinematic references, cultural analysis, and production insight, the paper aims to contextualize the film within a diasporic experience and a growing awareness of social power dynamics. It also reflects on the challenges of filmmaking as an outsider, where self-doubt, cultural translation, and …

Financial Health Literacy Of Community-Dwelling Older Adults: A Qualitative Research Study, Kimberly Davis

Theses and Dissertations

Background: Financial health literacy (FHL) is an emerging concept with unique application to older adults. Multiple complexities converge in older age that create increased financial vulnerability (e.g., retirement, chronic disease). However, low financial and health literacy are common in older adults, impacting their ability to self-manage. The AWV’s focus on prevention offers an opportunity to incorporate a proactive approach to financial-related assessment. This study will explore the perceived value of assessing FHL in primary care settings and the financial-related barriers and facilitators to implementing the personalized prevention plan.

Methods: The conceptual framework was guided by the Individual and Family Self-Management …

Multiphysics Modeling Of Material Response To High-Intensity X-Ray And Laser Pulses: Heating, Ablation, And Plasma Expansion, Youssef Abouhussien

Theses and Dissertations

This dissertation presents a computational framework to investigate material response under high-intensity X-ray fluxes produced by an exo-atmospheric nuclear detonation and laser-material irradiations, with a focus on heating, ablation, and plasma expansion phenomena relevant to satellite vulnerability and high-energy-density environments. A hybrid Monte Carlo and Two-Temperature Model (MC-TTM) was developed to simulate X-ray and laser energy deposition and thermal relaxation in metals and semiconductors across a range of X-ray and laser pulse durations from femtoseconds to nanoseconds. Results demonstrate distinct thermal behavior between materials, with ablation thresholds and phase transitions captured in good agreement with experimental data.

In parallel, a …

Exploring The Stem Career Identity Development Of Black Women Across Their Lifespan, Veronica Hurd

Theses and Dissertations

Although STEM is the fastest-growing career sector, Black women are grossly underrepresented as they account for 2.5% of the workforce. Research highlights that this underrepresentation is due to racialized structures in K-12, postsecondary, and career settings that restrict Black girls’ and women’s STEM opportunities. While macrosystems such as hegemonic ideologies, attitudes, and social conditions shape Black girls’ and women’s opportunities in STEM, they continue to persist and achieve their career goals. To explore these barriers and Black women’s persistence in this industry, this study draws from the autobiographical memories of 10 Black women in the field or formerly in the …

Multitask Learning For Named Entity Recognition And Relationship Extraction, Adrienne D. Hembrick

Theses and Dissertations

Information Extraction (IE) is a fundamental task in Natural Language Processing (NLP), involving the identification of structured information from unstructured text. Two core components of IE—Named Entity Recognition (NER) and Relation Extraction (RE)—are widely used to extract key concepts and the relationships between them across various domains. However, the sequential dependency of RE on the output of NER makes it vulnerable to error propagation: inaccuracies in entity recognition can negatively affect downstream relation extraction.

To mitigate this issue, Multitask Learning (MTL) has been proposed as an approach that jointly models NER and RE, aiming to improve overall performance and reduce …

Expanding The Performance And Functionality Of Air-Jet Dry Powder Inhalers Across Multiple Applications, Ghali H. Aladwani

Theses and Dissertations

This dissertation aims to expand the performance and functionality of air-jet dry powder inhaler (DPI) applications through the development of a next-generation, mesh-nebulizer-based, and scalable spray dryer for the production of pharmaceutical aerosols, along with new spray-dried formulation production methods, novel formulations, and new air-jet DPI components for aerosol delivery to both infants and adults. The first aim focused on the development of a custom small-particle spray drying system capable of integrating vibrating mesh nebulizer technologies in various configurations for the production of excipient enhanced growth (EEG) formulations. This flexible system enabled efficient production of both small- and large-particle powders …

The Influence Of The Covid-19 Pandemic On Student Engagement At A Historically Black University, John C. Travis

Theses and Dissertations

This study examined student engagement across three NSSE administrations at an HBCU—pre-COVID (2018), during COVID (2019), and post-COVID (2022). Engagement was analyzed across four themes: Academic Challenge, Learning with Peers, Experiences with Faculty, and Campus Environment. Results showed that Learning with Peers declined significantly over time, with the largest drop between 2018 and 2022, reflecting pandemic-related disruptions to peer interaction. No significant year effects emerged for the other themes. Two-way MANOVAs indicated that gender, first-generation status, and major did not significantly predict engagement, nor did they interact with year. In contrast, classification emerged as the most consistent predictor, with upper-division …

Using A Dimension Reduction Approach To Parse Heterogeneity In Dietary Restriction, Amanda Makara

Theses and Dissertations

Dietary restriction, the problematic reduction of caloric or macronutrient intake, is a critical eating behavior occurring transdiagnostically across eating disorders and subclinical disordered eating. The definition of dietary restriction is highly heterogeneous, and restriction is often conflated with other distinct constructs, such as dietary restraint. The current practices related to the definition and measurement of dietary restriction have notable flaws, negatively impacting the ability to identify and establish risk, diagnosis, and treatment of eating disorders. There is also limited evidence that commonly-used dietary restriction measures can validly predict food choice and objective intake. These issues raise questions about whether dietary …

Harmony Or Discord? A Study On The Alignment Between National Objectives And Reformed Social Studies Textbooks In Egypt, Lina Yehia

Theses and Dissertations

Education systems, in many parts of the world, have served as a channel for communicating national goals to students, and Egypt has not been an exception. This study examines how public textbooks effectively align with equipping future generations of Egyptians to fulfill the nation’s development policy goals set for 2030. Utilizing a qualitative research design, this study employed textbook and document analyses of the published national policy goals of the current administration, along with the most recently reformed social studies textbooks of Grades 4, 5, and 6, a product of EDU 2.0. Based on an analysis of national documents, the …

Examining Mental Health Providers’ Differential Sensitivity To Youth And Caregiver Treatment Engagement Problems By Studying Clinical Decision-Making Behaviors, Wendy Chu

Theses and Dissertations

Clinical decision-making is a systematic process of collecting and using information to guide action regarding client care. Across frameworks of clinical decision-making, there is an emphasis on the assessment of a problem – which involves considering, identifying, and selecting a problem – as it directly informs intervention. In youth mental health services, problems related to treatment engagement or the ability to meaningfully participate in services are important to assess given their association with premature termination and poor outcomes. However, research suggests that assessment of engagement problems may be challenging, and one potential reason pertains to providers’ ability to assess across …

Integrating School Mental Health Services: How Therapeutic Alliance May Improve Outcomes In A Mental Health Literacy Intervention, Alena Quinn

Theses and Dissertations

The youth mental health crisis continues to face persistent barriers of stigma, workforce shortages, and fragmented service delivery systems. Schools play a pivotal role in addressing these challenges, as youth are six times more likely to access mental health services in schools than in community settings. Frameworks such as the Comprehensive School Mental Health Systems (CSMHS) and the Interconnected Systems Framework (ISF) have improved access and quality of school-based mental health services through integration and partnership efforts. However, stigma remains a persistent barrier for seeking help and perpetuating untreated mental health difficulties. Research has found that mental health literacy (MHL) …

Iq Trends In Preschoolers With Autism And Co-Occurring Developmental Delay Are Associated With Autism Severity Not Anxiety, Chandler Elizabeth Knott

Theses and Dissertations

Intellectual functioning constitutes a significant source of heterogeneity in individuals with autism spectrum disorder (ASD); however, little is known about how intellectual functioning manifests over development in preschool children with non-syndromic ASD (nsASD) and co-occurring global developmental delay (GDD) or how this relates to functionally impairing co-occurring conditions, such as anxiety. Study participants included 57 children with nsASD and co-occurring global developmental delay (ASD+GDD), 24 categorized with mild GDD, and 33 categorized with moderate GDD. Drawing on dynamic systems theory, the present study explored developmental trends within the context of multiple complex systems, including intelligence, social-emotional, and behavioral functioning. Moderated …

Social Support And Gratitude In Adolescents: An Exploratory Study, Mimi Webb Kurtz

Theses and Dissertations

Dispositional gratitude is a construct associated with numerous benefits in youth. However, existing research has primarily focused on the outcomes of gratitude, with limited exploration of the underlying factors that may contribute to individual differences in its development. Because gratitude is considered malleable, identifying key factors associated with its growth in youth is essential. The present study aims to address this gap by exploring perceived social support as a presumed antecedent of dispositional gratitude in older adolescents. Cross-sectional, self-report data and structural equation modeling were used to assess the relationship of perceived social support with gratitude levels among high school …

The Effects Of Schema Therapy On Shame In Victims Of Intimate Partner Violence, Annette Ibarra Skeen

Theses and Dissertations

Intimate partner violence (IPV) is prevalent in the United States and worldwide. Despite the deleterious effects of IPV on personal and societal wellness, there is limited research on effective interventions for IPV victims. Among the detrimental effects of IPV on mental health, shame is a common emotion experienced by IPV victims. Shame can contribute to an array of mental health concerns, such as depression, anxiety, low self-esteem, PTSD, substance abuse, and suicidality. Using a multiple baseline, singe case design, the aim of the current study was to evaluate the effects of Schema Therapy (ST) on shame on IPV victims. Based …

Involvement Of Integrated Stress Response In Primary And Secondary Dystonia, Tricia Aleena Dulice Simon

Theses and Dissertations

ABSTRACT Dystonia is the third most common movement disorder in the United States of America , the first two being essential tremor and Parkinson’s disease. Gaining mechanistic knowledge about pathobiology of dystonia is essential for development of effective therapies. As the only therapies currently available are invasive procedures such as deep brain stimulation (DBS) or frequent botulinum toxin injections, it is critical to understand the underlying molecular mechanisms leading to dystonia. A maladaptive integrated stress response (ISR) involving dysregulation of the eukaryotic translation initiation factor  (eIF2) mediated signaling is observed in DYT-PRKRA patient cells. Mutations in PRKRA gene, which …

Examining The Distribution And Predictability Of Population Dynamics Across Geographic Space, Cleber Ten Caten

Theses and Dissertations

Populations occupy different regions of the geographic space and may experience distinct conditions over time that can cause fluctuations in their number of individuals. Environmental conditions, dispersal events, and resource availability are some of the factors that influence populations. A central goal in ecology has been to develop generalizations about how these factors that affect population dynamics are structured in geographic space. However, limited knowledge about where species occur and a lack of long-term surveys of populations has hindered the development, and validation, of such generalizations. In this dissertation, I use a combination of observational data, simulations, and experimental approaches …

Using The College Choice Model To Examine Why Hbcu Graduates Choose To Attend Pwis For Advanced Studies, Kendall Forde

Theses and Dissertations

The purpose of this study is to examine why African American students choose to attend Historically Black Colleges and Universities (HBCUs) for undergraduate and Predominately White Institutions (PWI) for graduate studies. Many college students have extenuating circumstances that influence their decision to seek higher education, specifically, HBCU’s. The study will investigate student influences and objectives of the college decision. Also, understanding institutions influences recruitment, retention, and college choice. The study will explore comprehensive and understanding of African American students of various backgrounds, also, understanding the experience for African American students excelling in their academic, social, and personal lives during their …

An Exploratory Study Of New Teacher Induction In Title I Elementary Schools In Georgia, Emilie Cole Thompson

Theses and Dissertations

This qualitative exploratory study examines the experiences of induction teachers participating in induction programs throughout Georgia’s Title I elementary schools. Grounded in semi-structured interviews and document analysis, the research investigated how induction programs address educators' unique challenges in high-need settings. Key findings highlight the importance of intentional mentor pairing, scaffolded support structures, and the inclusion of reflective practices to foster professional growth and teacher retention. The study also identifies gaps in existing induction frameworks, including a lack of tailored mentoring for diverse teaching contexts and insufficient clarity in reflective processes. Recommendations are provided to enhance induction practices by incorporating structured …

Isolating Confounding Abiotic And Biotic Effects On The Phenotype On Physa Acuta Snails, Ashley M. Bauer

Theses and Dissertations

Organisms match their phenotypes to prevailing environmental conditions leading to habitat specific polymorphisms. Polymorphisms arise from genetic divergence, phenotypic plasticity, or a combination of both processes. I examined the presence of habitat-specific polymorphism in Physa acuta snails collected from three streams and their corresponding downstream reservoir. In lotic systems shells were rotund with larger apertures, while those from lentic systems were more elongate with smaller apertures. In a reciprocal transplant lab experiment that crossed flow regime and crayfish predator cues, I tested for the underlying mechanisms responsible for the observed phenotypic differences. I found no evidence for plasticity in relation …

New Science Teacher Experiences In A Mentor Program With Same Content Vs Different Content Mentors: A Qualitative Study, Melissa Niemi

Theses and Dissertations

This qualitative case study explores the impact of mentor content knowledge on the experiences of novice secondary science teachers and what qualities novice science teachers find important in a mentor. This study investigates whether having a content-specific mentor affects a new science teacher’s self-efficacy, teaching practices, and career satisfaction compared to those mentored by teachers from different content areas. Using Social Cognitive Theory as a framework, the study examines how the interactions between mentors and mentees shape new teachers’ development and instructional effectiveness. Data was collected through participant images, card sorts, and interviews to uncover themes regarding the value of …

Stop Suffering For Your Art, Amanda Bryers

Theses and Dissertations

What does the process look like for an actor to disconnect from a circumstance that they take on during the course of a rehearsal or performance? And how does this disconnection process affect the actor’s mental, physical, and emotional health? This project consists of interviews of CSU student actors about their personal experiences in letting go of imaginary circumstances immediately following a performance, rehearsal, or actor’s exercise. The purpose of this project is to determine whether or not actor’s training provides sufficient tools for an actor to disconnect. Interviewees detailed their own personal methods, as well as whether or not …

Cultural Preservation Through Promotion: Marketing The Muscogee Way, Stephanie Lawson

Theses and Dissertations

Cultural tourism is on the rise. According to UNESCO (2021), cultural tourism accounts for 40% of global tourism and is one of the fastest-growing segments of the tourism industry. Today, travelers worldwide seek authentic experiences that allow them to connect with local cultures, learn about ancient history, and engage in unique cultural activities. Meanwhile, Indigenous tourism experiences are also a growing trend in the tourism industry. Indigenous tourism is growing by 4% annually, and this growth is projected to continue until 2034 (Future Market Insights, 2024). The rising popularity of cultural and Indigenous tourism presents a unique opportunity for Native …

Listening, Looking, And Learning: An Exploration Of Musical Influence On The Narratives And Characters Of Call The Midwife, Mary Claire Buchanan

Theses and Dissertations

Call the Midwife has distinguished itself among British period dramas through its commitment to telling women’s stories with emotional depth, historical and medical accuracy, and nuanced character development. Unlike many period dramas based in the United Kingdom that center on the aristocracy, Call the Midwife connects the audience with ordinary people, particularly women, navigating life post-World War II and the early days of government healthcare by portraying their struggles, triumphs, and evolving identities. One of the most compelling ways the series achieves this is through its use of music, particularly recurring motifs that signify personal growth and transformation. This thesis …

Innovative Teaching Strategies And Lesson Plans To Support Students With Adhd, Celeste Grantham

Theses and Dissertations

This thesis explores how creativity, imagination, and problem-solving can be harnessed to improve student outcomes – specifically engagement, motivation, and academic achievement – for students with Attention-Deficit/Hyperactivity Disorder (ADHD) in elementary classrooms. Rather than conducting a data-driven study, this project draws upon interdisciplinary research from educational psychology, cognitive science, and pedagogy to design inclusive research-informed teaching strategies. The cognitive processes underpinning creativity and imagination – such as divergent thinking, mind-wandering, and creative incubation – are examined as potential strengths often underutilized in traditional classrooms. A comprehensive literature review establishes how these variables interact and influence the learning experiences of students …