Digital Commons Network^™

Class-Aware Early-Exit Networks For Efficient And Secure Edge Deployment, Mohammed Ayyat

Theses and Dissertations

Edge devices increasingly run high-stakes machine learning workloads under strict latency, power, memory, and communication constraints. Deep neural networks provide the accuracy needed for tasks such as network intrusion detection, health monitoring, autonomous sensing, and human activity recognition, but conventional inference executes the same computational path for every input. Early-exit neural networks reduce average inference cost by allowing confident samples to terminate before the final layer. However, existing early-exit systems are largely class-agnostic: they allocate computation according to confidence or uncertainty, without considering that different output classes may carry different operational urgency. This dissertation develops class-aware early-exit inference, a framework …

Integration Of Whole Genome Sequence And Rna-Sequencing Data For Disease-Specific Phenotype Prediction, Leiliani M. Clark

Theses and Dissertations

Breast cancer is a heterogeneous disease driven by complex genomic and transcriptomic alterations, making accurate phenotype prediction a challenging task. Recent advances in genomic foundation models and representation learning provide new opportunities to extract biologically meaningful features directly from sequencing data. The objective of this study was to develop and evaluate a multimodal framework integrating whole genome sequence (WGS) and RNA sequencing (RNA-Seq) embeddings for breast cancer classification. DNABERT-2, a DNA foundation model, was evaluated for its ability to generate genomic representations from The Cancer Genome Atlas breast cancer (TCGA-BRCA) WGS data, and the impact of downstream fine-tuning on embedding …

Partisan Local Media And Corporate Voluntary Disclosures: Evidence From Sinclair Acquisitions, Ming Li

Theses and Dissertations

I investigate the impact of local media’s political orientation on firms’ voluntary disclosure, exploiting the acquisitions of local TV stations by Sinclair Broadcast Group, a conservative media conglomerate. Drawing on the media bias theory and implementing a staggered difference‐in‐differences design, I find that the local partisan media affects management earnings forecasts. Specifically, Conservative-leaning CEOs in designated market areas (DMAs) affected by Sinclair’s acquisitions forecast more optimistically, increasing forecast frequency and inflating forecasted earnings. The impact is stronger if the DMAs are more Liberal-leaning before the acquisitions and when firms have weaker corporate governance. I also find that the stock market …

Managing Identity, Claiming Expertise, And Emotional Labor: A Constructivist Grounded Theory Of The Experience Of People With Serious Mental Illnesses In Primary Care, Jeffrey Ciak

Theses and Dissertations

People with serious mental illnesses (SMI) die 15 to 20 years before their peers without mental illness primarily due to chronic physical health conditions. Preventative care and treatment for chronic physical health conditions primarily occurs through primary care, but the experience of people with SMI in primary care is understudied. This constructivist grounded theory dissertation explored the experiences of people with SMI in primary care. Theoretical sampling resulted in 19 participants who were adults with SMI and long-term anti-psychotic use. Data was collected through one-to-two-hour long intensive interviews. The analytical process occurred concurrently with data collection. The abductive analytical process …

Sex In Plants: Birth, Death, And Trying To Survive In Changing Climates, Elena M. Meyer

Theses and Dissertations

Plant mating systems are key determinants of fitness. Angiosperms exhibit a wide variety of reproductive strategies, including self-fertilization (or selfing), outcrossing, and mixed mating. It has been estimated that up to 43% of plant species are capable of selfing, and selfing has been hypothesized to provide reproductive assurance where opportunities for mating may be limited, such as in marginal environments. However, questions regarding the overall distribution of selfing rates across angiosperms, the maintenance of mixed mating in the face of inbreeding depression, and the impact of self-fertilization on diversification rates remain incompletely resolved. Here, we explore the dynamics of self-fertilization …

Empirical Dynamical Modeling Of Cortico-Hippocampal Information Transfer During Memory Encoding, Sam Y. Cole

Theses and Dissertations

Understanding how brain dynamics support successful memory formation remains a central challenge in neuroscience. This dissertation applies tools from empirical dynamical systems theory to investigate the neural mechanisms underlying episodic encoding, with a focus on cortico-hippocampal interactions. Using stereoelectroencephalography (sEEG) data recorded during a delayed free recall of word lists task, this work reveals nonlinear, state-dependent shifts in directed information flow between cortex and hippocampus that distinguish successful from unsuccessful encoding. To further characterize these dynamics, state-space trajectories are reconstructed using time-delay embedding and recurrence-based methods, and features derived from these trajectories are used to classify memory outcomes. By integrating …

Real-Life Health Applications Of Wireless Sensing Using Edge Devices, Md Touhiduzzaman

Theses and Dissertations

Wireless sensing has emerged as a transformative paradigm that leverages ubiquitous radio-frequency signals for environmental perception and human activity recognition beyond their primary role in data communication. Unlike wearable sensors and camera-based systems, wireless sensing offers a non-intrusive, privacy-preserving, and cost-effective alternative that operates seamlessly under low-lighting conditions, through walls, and in non-line-of-sight (NLoS) scenarios. The growing availability of edge computing devices further enables real-time on-device data processing, making wireless sensing solutions highly suitable for in-home health monitoring and smart living applications. This dissertation investigates real-life health applications of wireless sensing through four completed systems, each addressing a distinct challenge …

Modeling Of Laser-Produced Plasma Plumes: Expansion, Chemistry, And Thin-Film Deposition, Edmund Tsiri Semaha, Edmund Tsiri Semaha

Theses and Dissertations

Abstract

Laser-assisted material processing involves coupled plasma expansion, chemical reactions, and particle transport that govern the quality of thin-film deposition. This dissertation presents a comprehensive computational investigation of these processes using the OpenFOAM framework. First, the performance of the twoPhaseEulerFoam (tPEF), rhoCentralFoam (rCF), and sonicFoam (sF) solvers is evaluated for modeling laser-produced plasma plume expansion under atmospheric conditions, demonstrating that tPEF accurately captures shock-wave propagation, hydrodynamic behavior, and multispecies interactions. Building on this validation, the reactingFoam (rF) solver is employed to investigate the chemistry of aluminum plasma expanding into an air environment (Al–N₂–O₂). The model incorporates appropriate thermodynamic, transport, and …

Positive Body Image In Postpartum Women: A Psychometric Evaluation Of The Body Appreciation Scale-2 And A Phenomenological Exploration, Taylor Vashro

Theses and Dissertations

Postpartum women appear particularly vulnerable to body dissatisfaction due to the rapid physiological, emotional, and environmental changes that occur across the perinatal experience (Baskin et al., 2021; Nippert et al., 2021). Recent studies have demonstrated the experience of both negative and positive body image during postpartum (Rodgers et al., 2024; Watson et al., 2016). However, there is limited research regarding the measurement and exploration of positive body image in postpartum women. The current study aimed to: 1) evaluate the factor structure and psychometric properties of the Body Appreciation Scale-2 (BAS-2), a widely used measure of positive body image in postpartum …

The Development And Initial Validation Of A Measure Of Professional Mentoring Engagement Among School Counselors, Emily Kitching

Theses and Dissertations

This study describes the development and initial validation of the Mentoring Engagement Scale (MES), a self-report instrument designed to measure a person’s level of engagement in professional mentoring. Despite emerging evidence that professional mentoring may serve as a protective factor against the burnout and stress associated with school counselors’ roles and responsibilities, existing measures of mentoring are limited by weak documentation of development procedures, mixed psychometric support, and limited practical applicability. In two phases, the present study aimed to (1) evaluate content validity and systematically refine items grounded in Kahn’s (1990) theory of engagement and (2) investigate the preliminary psychometric …

Dodgeballs And Dragons: Gamified Live Theatre In The Service Of Community Betterment, Teddy Mcpherson

Theses and Dissertations

This thesis qualifies and documents a new genre of interdisciplinary, interactive theatre called Dodgeballs and Dragons. It covers a brief history of Dungeons and Dragons and Theatre of the Oppressed (the two foundational works for the new genre) as well as previous uses of D&D as a form of theatrical entertainment. After establishing the precedence used to create this product, the rest of the thesis breaks down how to write, lead, and play these shows on a regular basis. The document culminates in collected data providing concrete evidence for the future of the form and its many applications.

Conceptual Concerns Regarding The Content Validity Of The Construct Of Gender Dysphoria In The Diagnostic And Statistical Manual Of Mental Disorders, Fifth Edition, Text Revision, Waverley Vesely

Theses and Dissertations

The diagnostic classification of gender dysphoria in the DSM-5-TR elicits a number of clinical, political, and philosophical concerns, ranging from those that are diagnostic and taxonomical in nature to those that fall within the domains of ontology, phenomenology, and hermeneutics. Part of the reason for the complexity of studying the diagnostic and nosological validity of gender dysphoria as an extant diagnostic classification is that, unlike many disorders, gender dysphoria is inextricably tethered to identity. While the recent change from gender identity disorder to gender dysphoria has nominally removed the status of disorder, in practice, both clinicians and the general population …

The Effects Of Anxiety On Adult Athletes And Approaches To Improving Performance And Well-Being, Taylor Glaspie-Walton

Theses and Dissertations

This systematic review examined the complex relationship between anxiety and sports performance in adult athletes, along with exploring effective approaches for enhancing both performance and psychological well-being. Through analysis of 18 studies spanning diverse sports and competitive levels, this research identifies key factors that influence anxiety responses and performance outcomes. Findings revealed that competition level, performance-goal discrepancies, and injury recovery significantly impact anxiety levels, with athletes' interpretations of anxiety symptoms proving more influential than symptom intensity alone. The research demonstrates that mental toughness and self-efficacy function as fundamental psychological resources, though their impact appears to plateau at elite competitive levels. …

Graduate Student Retention: Examining Why Master’S Students Leave And What Motivates Their Return In A Large Public University System, Sonja Prophete

Theses and Dissertations

Graduate student persistence is a relatively unexplored area in the literature of higher education studies; specifically, at a multi-institutional scale at the master's level. This research study examines the factors which cause students to discontinue their master's degrees, and what conditions could possibly support them returning to their program at a large urban public university system. The current study was guided by Hoyt and Winn's (2004) distinction between non-returning students, and Bean & Metzner's (1985) theoretical model of student attrition. A sequential mixed-methods study was conducted to examine the institutional and environmental influences on students' decision-making processes.

The quantitative data …

Exploring Excessive Absences In An Urban School Setting: Implications For Student Academic Success And High School Graduation, Tamieka Mclaughlin

Theses and Dissertations

This qualitative phenomenological study explored the perspectives of parents and teachers regarding excessive student absenteeism in an urban high school setting and the implications of persistent absences for students' academic success and high school graduation. Excessive absenteeism remains a major challenge for schools in urban communities where children experience multiple personal, family, school and community factors that may influence attendance. Understanding how parents and teachers perceive these factors can provide insight into the experiences and challenges associated with chronic absenteeism, as well as the strategies they believe may support improved student attendance, academic success, and progress towards high school graduation. …

Teachers’ Perceptions Towards The Impact Of Reading Plus On 10th-Grade Intensive Reading Students, Melvia Williams

Theses and Dissertations

The purpose of this generic qualitative study was to explore teachers’ experiences and perceptions regarding the impact of the Reading Plus program on 10th-grade students in intensive reading courses. The research was aimed to understand how teachers perceive the program’s effectiveness in enhancing reading fluency, comprehension, and vocabulary, as well as their reports about student engagement and the challenges and successes encountered during implementation. The data was gathered from semi structured interviews with 8 teachers with at least 2 years of experience teaching with Reading Plus in intensive reading programs. Themes for teachers' experiences were generated by inductive analysis.

Findings …

Low Early Reading Skills In Children Entering Kindergarten In An Urban K-8 Center, Shelly D. Smith-Harding

Theses and Dissertations

This applied dissertation was designed to investigate the preparedness of kindergarten children in early reading skills, drawing comparisons from their experiences in comparable preschool programs and to gain insight about how to address the problem of low early reading skills among children entering kindergarten. Using archival data from i-Ready reading diagnostic tests over a 4-year period (2021-2022 to 2024-2025), the researcher compared students who attended an urban K-8 Center Head Start program (n=47) with students from other preschools (n=33).

The researcher conducted an independent t-test with SPSS, version 30 software, to analyze differences at the baseline (Assessment Period 1) and …

Kindergarten Through Third-Grade Teachers’ Experiences With State-Level Literacy Coaching Support: A Phenomenological Qualitative Research Study, Nicole Hunter

Theses and Dissertations

This phenomenological qualitative applied dissertation was designed to provide insight into the experiences of kindergarten through third-grade general education teachers when supported by state-level literacy coaches. State-level literacy coaches are assigned to specific elementary schools and offer embedded professional development and professional learning opportunities to enhance literacy instruction and promote professional growth among elementary teachers. Although many kindergarten through third-grade general education teachers in literacy support schools see state-level coaching support as beneficial, some teachers deem this support as punitive and are reluctant to collaborate with coaches.

Teachers' experiences with literacy coaches have been viewed as a component in the …

Exploring The Benefits Of Virtual Learning Environments For Students With Autism Spectrum Disorders, Kenton Louis-Jean

Theses and Dissertations

This qualitative phenomenological applied dissertation explored the lived experiences of K–5 teachers who worked with students with Autism Spectrum Disorder (ASD) in virtual learning environments. As virtual instruction became increasingly prevalent in K–12 education, limited research had examined how teachers adapted instructional practices to meet the cognitive, sensory, and engagement needs of students with ASD in online settings. This study addressed that gap by examining educators' firsthand perspectives on implementing virtual instruction for students with ASD.

Data were collected through semi-structured interviews with eight K–5 teachers who had experience teaching students with ASD in virtual or hybrid learning environments. Participants …

Conocimientos Sobre La Transición Postsecundaria De Estudiantes Del Programa De Educación Especial De Undécimo A Duodécimo Grado En Una Escuela Secundaria Pública En Puerto Rico, Nancy L. Ortiz Rivera

Theses and Dissertations

El propósito de este estudio fue determinar el nivel de conocimiento que poseían los estudiantes del Programa de Educación Especial sobre el proceso de transición postsecundaria. La investigación se desarrolló mediante un enfoque cuantitativo con un diseño descriptivo, considerando la transición como una etapa determinante en la vida académica y personal de los estudiantes con discapacidades, por su influencia en la preparación para la educación universitaria, la inserción laboral y el desarrollo de la vida independiente.

El estudio se llevó a cabo en una escuela secundaria pública de Puerto Rico e incluyó una muestra de 21 estudiantes del Programa de …

Teacher Perceptions Of Social-Emotional And Behavioral Factors That Impede Preschool Adjustment, Allease J. Glamore

Theses and Dissertations

Children with behavioral and social-emotional challenges struggle to adjust to the preschool environment which places increased demands on preschool teachers to implement effective strategies. The purpose of the study was to assess teachers’ perceptions regarding social-emotional and behavioral factors implicated for successful preschool adjustment. The theoretical framework guiding this study is grounded in the integration of Bronfenbrenner’s ecological systems theory, social-emotional learning theory, and behavior theory. A case study design was used to examine the perceptions and use of social-emotional and behavior interventions and supports by four early childhood teachers across two programs.

Data were collected using qualitative in-depth one-on-one …

Mixed-Methods Study Of High School Teachers’ Perceived Training, Self-Efficacy, And Assessment Competencies In Online Courses, Chantell Radford

Theses and Dissertations

The problem in this study was that, in a large urban school district in South Florida, the online high school teachers’ training, self-efficacy, and assessment competencies in courses required enhancement. The purpose of this study was to examine the perceptions of high school teachers on their training, self-efficacy, and assessment competency in online courses.

Twenty high school online teachers participated in the study. Recruitment occurred through a link posted on Facebook and LinkedIn. The design (sequential explanatory mixed-methods design) aligned with the five research questions. Two instruments (survey and questionnaire) were used to collect data. Quantitative data analyis occurred with …

A Qualitative Study Of Teacher Perceptions Of Reading Proficiency, Latia Tyler

Theses and Dissertations

This applied qualitative dissertation was constructed to provide insight into the experiences of teachers who provide reading instruction for third grade students at the target school. Seven teachers engaged in semi structured interviews that sought to examine their perceptions on their abilities in teaching reading instruction, their perception on school supports, their perceptions on reading proficiency and factors that contribute to it. Additionally, comprehensive reading plans, published by the state of Florida, were examined to further understand the perceptions of teachers alongside district intended approach for reading instruction.

Thematic analysis of data revealed eight key themes including gaps in foundational …

Improving Middle School Students’ Scores On Math Word Problems Through Reading Comprehension, Diane M. Burgess

Theses and Dissertations

This applied dissertation was designed to address the poor performance of middle school students on math word problems attributed to the lack of reading comprehension skills. A review of standardized math assessments for middle school students confirmed that the greater proportion of questions is made up of word problems. Despite having strong mathematical skills, middle school students are likely to fail to find the correct solutions for math word problems. In the middle school classroom, the development of reading comprehension skills and mathematical abilities are tasks required of different teachers. Math teachers at a middle school in Florida did not …

Teachers’ Experiences Implementing An Ai-Supported Reading Program In Kindergarten Through Grade 2: A Generic Qualitative Study, Janet Harrell

Theses and Dissertations

This applied dissertation was completed to explore kindergarten through grade 2 teachers’ experiences implementing an artificial intelligence (AI)-supported reading program during literacy instruction. Guided by a generic qualitative design, the study was designed to examine how teachers prepared to use the program, integrated it into daily literacy instruction, used AI-generated data to inform instructional decision-making, and experienced the instructional and contextual conditions that supported or hindered implementation. Purposeful sampling was used to recruit 10 kindergarten through grade 2 teachers with experience using Amira Learning. Data were collected through semi structured interviews and analyzed using thematic analysis.

Four themes emerged from …

The Implementation Of Small Group Direct Instruction For Reading Domains Of Second- Grade Students, Tarmeka Smith-Bennett

Theses and Dissertations

This applied dissertation explored how implementing small-group direct instruction in an elementary school setting affected the reading performance of second-grade students. The study examined how organized small-group direct instruction can elevate students’ reading achievement in phonics, vocabulary, and reading comprehension. Over a six week instructional period, a mixed-methods research design was used to collect quantitative and qualitative data.

Pretest and posttest students’ reading assessments were collected using quantitative data, while teachers' weekly reflections and surveys were collected using qualitative data. A total of 30 students identified as struggling readers, and three second-grade teachers who implemented small-group direct instruction participated in …

Beyond The Classroom: Examining The Relationship Between Student Engagement, Academic Motivation, And Retention, Jeanine Marie Dinardo

Theses and Dissertations

Student retention rates at community colleges have remained low across the United States in recent years. Student engagement is important because it increases motivation and improves academic performance and retention. The purpose of this correlational study was to examine the relationships between student engagement, academic motivation, academic performance, and retention among students at a small community college in the mid-Atlantic region of the United States. The study was guided by self-determination theory. The sample consisted of 80 community college students. Data were collected through a questionnaire given to participants through their college email. The data were collected using SurveyMonkey and …

Teachers’ Perceptions Of The Decline In Reading Scores Among Fourth- And Fifth-Grade Students, Brigetta Foules-Sims

Theses and Dissertations

The purpose of this qualitative instrumental case study was to explore teachers’ perceptions of the factors contributing to the decline in reading achievement among fourth- and fifth-grade students in a rural elementary school in a southern state. The study explored teachers’ perceptions of the causes of declining reading performance, the instructional challenges they encounter when addressing reading difficulties, and the resources and supports they believe are necessary to improve student outcomes.

Data were collected through semi structured interviews with eight certified fourth- and fifth-grade teachers. Five themes emerged from the data: (a) increasing academic demands reveal foundational reading gaps, (b) …

Embarazo Prematuro Y Abandono Escolar En Jóvenes Inmigrantes Hispanas: Estudio De Caso En Una Academia De Educación En Español, Danays Carbonell Dieguez

Theses and Dissertations

Esta disertación aplicada tuvo como propósito explorar las experiencias de jóvenes inmigrantes hispanas que abandonaron sus estudios debido a embarazos prematuros mientras participaban en el programa Success Management Academy (SMA), una academia de educación en español ubicada en el contexto de Miami-Dade County Public Schools. El estudio se desarrolló desde un enfoque cualitativo mediante un diseño de estudio de caso, con el fin de comprender los factores personales, familiares, educativos, socioeconómicos y culturales que influyeron en la interrupción de sus trayectorias escolares.

La investigación incluyó cinco jóvenes inmigrantes hispanas provenientes de Centroamérica que estuvieron vinculadas al programa SMA y experimentaron …

Fairness: Examining Support And Resources Available To Respondents In Title Ix Cases, Emanuel Jerome Oliver

Theses and Dissertations

This phenomenological study explored how higher education institutions develop Title IX procedures to ensure respondents receive fair treatment from the outset of the adjudication process. It also examined how colleges and universities provide resources and support to respondents throughout the Title IX process. The study used semi structured interviews with Title IX Coordinators at various higher education institutions to understand how they have developed practices to support respondents.

Findings revealed that higher education institutions have developed various methods to support respondents in the Title IX process. The goal of the Title IX process is to ensure that respondents receive the …