Digital Commons Network^™

A Reformation Of The Status Quo: An Examination Of The Relationship Between Organizational Structure And Social Justice Reform In American Public Schools, Jaielle Manning

Educational Leadership & Workforce Development Theses & Dissertations

This study explores the correlation between organizational structure and social justice reform in American public schools. The study specifically aims to answer the following research questions: What are the lived experiences of school leaders as they navigate and enact social justice reform? How do school leaders experience the ways organizational structures shape their opportunities and challenges in implementing social justice reform? How do school leaders experience and make sense of the influence of local, state, and national policy on their efforts toward social justice reform in American public schools? The literature review examined organizational structure through the lens of Ecological …

Comparative Analysis Of Emergent Behaviors Of Three Drone Swarm System Models For Targeting Using Agent-Based Modeling And Simulation, Arsenio T. Gumahad Ii

Engineering Management & Systems Engineering Theses & Dissertations

This dissertation introduces a novel computational simulation framework for evaluating the emergent behaviors of three swarm drone models using Agent-Based Modeling and Simulation (ABMS). The three swarm models are a Leader-Follower swarm model based on Bruckstein's antline theory, a Flocking model based on a simplified Reynolds 'Boids’ model, and a Stigmergic model with pheromone-based coordination. The primary objective of the simulation is to evaluate the performance of these models in delivering a user-defined number of drones of each type to a target area of interest in four separate scenarios, resulting in 50,000 separate simulation trials. Each scenario was structured to …

Large Language Models (Llms) For Clinical Note Generation: International Classification Of Disease (Icd) Code, Knowledge Graph (Kg) And Prompt Evaluation, Ivan P. Makohon

Computer Science Theses & Dissertations

In the past decade, a surge in the amount of electronic health record (EHR) data in the United States occurred, driven by a favorable policy environment created by the Health Information Technology for Economic and Clinical Health (HITECH) Act of 2009 and the 21st Century Cures Act of 2016. Clinical notes for patients’ assessments, diagnoses, and treatments are captured in these EHRs in free-form text by physicians, who spend a considerable amount of time entering them. Manually writing these notes is time-consuming, increasing patient waiting times and potentially delaying diagnoses. Large language models (LLMs), such as GPT-4o, possess the ability …

Observed Parenting, Parent-Child Aggression, And Intimate Partner Violence As Predictive Of Family Dysfunction, Paige Munshell

Psychology Theses & Dissertations

Family systems theories contextualize violence as occurring across multiple levels of the family, yet much of the existing literature focuses on a single family member’s outcome (i.e., the child) and neglects to include data collected from fathers. This study examined the associations between indicators of functioning at the dyadic-level in the family system—observed parenting, Intimate Partner Violence (IPV) perpetration, and Parent-Child Aggression (PCA) risk—and later overall family dysfunction. Participants were 180 mothers and 144 of their male partners evaluated when their child was 18 months old and re-evaluated at 4 years old. Measures of observed parenting, IPV perpetration, and PCA …

Leading With All The Feels: Exploring The Perceptions Of Middle School Administrators' Implementation Of School-Wide Social-Emotional Learning Programming, Sabrina Smith Richardson

Teaching & Learning Theses & Dissertations

Middle school administrators have multiple responsibilities that range from ensuring the safety and security of staff and students to overseeing the curriculum and instructional foci of their buildings. At the same time, middle school students are experiencing the early stages of adolescence. Because it is a complex time for students to navigate, it creates anxiety, a decline in academic achievement and motivation, and peer and academic pressures (London, 2022; Schlund, 2021). Middle school students have social-emotional needs that are not typically met in secondary schools, which means programming is not typically a part of the instructional day. This study examined …

Evaluation Of Ocean Lidar Enhancement Through Miniaturization And Gated Pmt-Based Range Extension, Chandler Austin Slater

OES Theses and Dissertations

Oceanographic lidar systems remotely characterize the vertical structure of the upper ocean by recording the light backscattered from a laser pulse as it propagates through the water column. Historically these systems have been constrained by limited detection ranges, often capturing only a portion of the illuminated water column, typically fading to noise around the 10% isolume. A primary constraint has been the limited dynamic range of digitizers, which inhibits the ability to resolve both intense near-field and faint far-field backscatter signals within a single acquisition. To address this, we developed a novel optical lidar system incorporating gated photomultiplier tubes (PMTs) …

Exploring Bonding Through Outdoor Recreation In Foster Care Utilizing Attachment Theory, Casandra L. Barnes

Communication & Theatre Arts Theses

As of 2024, there are over 328,000 children in foster care in the United States (AFCARS, 2024), many of whom experience disrupted attachments and trauma that hinder their ability to form healthy relationships. Drawing from attachment theory, this study explores how outdoor recreational activities can facilitate bonding between foster parents and their foster children. Using a mixed method approach this explorative research project consisted of two phases: a pilot study at the Virginia zoo involving foster families participating in a cooperative outdoor activity and completing post event surveys, and semi-structured interviews with foster parents to examine lived experiences of bonding …

The Presentation Of Self In Everyday Digital Life: A Study Of Self- Disclosure And Work Environments, Mackenzie Michelle Skiff

Communication & Theatre Arts Theses

The digital age impacts individuals’ lives in many ways. One impact is how and where work is completed across many careers. The work-from-home strategy enables individuals to complete work that is not within a shared space, such as an office. With the absence of this shared space, communication practices within workplaces could be changing. Specifically, self-disclosure while working from home may differ from self-disclosure within the office or hybrid (both in office and remote) work environments. This thesis investigates whether there are differences in self-disclosure practices across three different types of contemporary work environments and offers a digital update to …

The Influence Of Individual And Collective Social Capital On Teachers’ Decisions To Move Districts, Melinda Dawn Hodgkiss

Educational Leadership & Workforce Development Theses & Dissertations

Understanding what contributes to teachers’ decisions to stay or leave in a school district is complex. There is a need to further investigate factors that influence teacher retention and attrition so that policy makers and school leaders can be informed about practices that may replenish and sustain the educator workforce. In an effort to understand the essence of the lived experience of teachers who previously made a decision to move districts, this study used phenomenological methods for the purpose of discovering the role that access to individual and collective social capital played in teachers’ decision making. Semi-structured interviews were conducted …

Reflections In The Mirror: An Examination Of Racially Congruent Mentoring Of Black Teacher Candidates In A Teacher Education Program, Mary Louise Gregory

Teaching & Learning Theses & Dissertations

The high demand for Black educators in K-12 schools across the United States has caused several teacher training programs to rethink how they prepare Black teacher candidates for the teaching workforce (Andrews et al., 2019; Blazar, 2024; Milner & Howard, 2004). Improving teacher candidate training, especially for Black teacher candidates can boost K-12 Black teacher representation. Literature on Black teacher candidate’s experiences while being mentored identifies several challenges that include issues with implicit bias, microaggressions, stereotyping and other occurrences of racial discrimination (Daly et al., 2024; Hampton et al., 2008; Kardos & Johnson-Moore, 2010; Rodriguez et al., 2020). The process …

Unraveling The Links Between Substance Use And Academic Motivation In Higher Education, Melissa Lynn Goins

STEMPS Theses & Dissertations

Self-Determination Theory (SDT) posits that the quality of students’ motivation regulation (i.e., autonomous versus controlled) shapes both learning and health behavior, yet few studies have examined the relations among motivation regulation, alcohol and cannabis use, and achievement. In this study, I surveyed 459 undergraduates at a mid-sized public university in the southeastern United States. Participants completed the Academic Motivation Scale-College version 28 to assess autonomous and controlled motivation regulation, a typical-week alcohol grid, a seven-day cannabis grid, and self-reported grade point average (GPA). Results indicated that autonomous academic motivation was uniquely related to GPA; however, neither motivation variable related to …

Violence As An Ecology: Women Making Safety In Khayelitsha, Melissa J. Miller-Felton

Graduate Program in International Studies Theses & Dissertations

This dissertation asks how women in Khayelitsha make safety in a place where danger has become ordinary and where the afterlives of colonialism and apartheid still determine who waits, who walks, and who arrives home. What began as a study of risk and protection grew into an inquiry about time, dignity, and responsibility. I call the framework that emerged an ecology of violence—a way of seeing how harm gathers across generations and infrastructures, and how care, exhaustion, and survival intertwine within it.

In this ecology, violence is not a single act but a confluence of registers—slow, structural, colonial, and …

Bridging The Gap Between Network Science And Network Systems To Identify And Mitigate Cyber Risk: Identify And Mitigate Backdoor Attacks On Graph Neural Networks And On Complex Systems, Sabah Ettahri

Electrical & Computer Engineering Projects for D. Eng. Degree

This doctoral project aims to bridge the gap between graph theory and network science to identify and mitigate cyber risk, represented as a CY-Triangular Network that connects different networks. The CY-Triangular Framework is a cybersecurity system that integrates graph theory and network science through an interoperable learning approach. The objective of this project is to bridge the gap between two domains: network science and network systems. Accordingly, it examines one representative network from each field, focuses on a complex system network, and explores Graph Neural Networks (GNNs). The connection between these domains lies in graph theory. This research demonstrates that …

Crux: Exploring Imperialism And Resistance Through Role-Playing Games, Devon Gronka

Institute for the Humanities Master's Papers, Projects, and Capstones

This is a game about power. The game is a Role-Playing Game, or RPG. As with nearly all RPGs, the game presents the players with choices about how their characters will interact with each other and with the world around them, and these interactions are woven together to more or less form a plot. However, oftentimes in life there are no good choices available, and there is no win state outside of what we might determine for ourselves.

The game is a social experiment. While playing a game, a player takes in information in a very different manner than when …

Twim #222: Biosensors In Bacteria, Madison Hayes, Alexis Austin, Dillon Nguyen, Angela Wilson, Rebecca Seipelt-Thiemann

School of Medical Diagnostics & Translational Sciences Publications

Podcast annotation TWiM #222: Biosensors in Bacteria from the weekly podcast series "This Week in Microbiology" (TWiM), a podcast where experts in microbiology discuss academic papers in their field in an informal way.

Twim #243: Beef And Bacillus, Sakiem Winston, Madison Wolford, Rebecca Seipelt-Thiemann, Angela Wilson

School of Medical Diagnostics & Translational Sciences Publications

Podcast annotation TWiM #243: Beef and Bacillus from the weekly podcast series "This Week in Microbiology" (TWiM), a podcast where experts in microbiology discuss academic papers in their field in an informal way.

Tracing The Journey Of Dissolved Organic Matter: From Leaf Litter Photodegradation To Microbial Processing In Tropical Streams, Samantha Nicole Sullivan

Chemistry & Biochemistry Theses & Dissertations

Dissolved organic matter (DOM) is a major reservoir of organic carbon in aquatic ecosystems and plays a central role in global carbon cycling through its transformation and remineralization to carbon dioxide (CO₂). As DOM moves from terrestrial environments into streams and rivers, its chemical composition is altered by a combination of microbial and photochemical oxidation processes that regulate both its reactivity and its persistence during transport. However, the molecular mechanisms governing these oxidative transitions, particularly in tropical ecosystems characterized by strong hydrologic seasonality and substantial inputs of plant-derived material, remain insufficiently resolved. This dissertation integrates ultrahigh-resolution mass spectrometry, optical characterization, …

Toward Personalizing Quantum Computing Education: An Evolutionary Llm-Powered Approach, Iizalaarab Elhaimeur

Computer Science Theses & Dissertations

Quantum computing education faces significant challenges due to its complexity and the limitations of current tools. This thesis introduces a novel Intelligent Teaching Assistant for quantum computing education and details its evolutionary design process. The system combines a knowledge-graph-augmented architecture with two specialized LLM agents: a Teaching Agent for dynamic interaction and a Lesson Planning Agent for lesson generation. The system is designed to adapt to individual student needs, with interactions meticulously tracked and stored in a knowledge graph. This graph represents student actions, learning resources, and their relationships, aiming to enable reasoning about effective learning pathways. We describe the …

Research To Practice Gap: Impact Of Principal Perceptions & Communication On Change Initiatives, Jennifer Sagendorf

Educational Leadership & Workforce Development Theses & Dissertations

The purpose of this study is to examine the experiences, perceptions, and practices of school principals related to evidence-based change initiatives and the continued divide between the findings of educational researchers and the use of these findings by school practitioners. Since the prevalent dichotomy of theory and practice is detrimental to school improvement efforts, it is important to examine the underlying values and beliefs that contribute to perpetuating this divide. For this qualitative phenomenological study, semi-structured interviews with seven elementary school principals provided first-hand accounts of the principals' lived experiences. Through an iterative process of coding, clustering, and cross-case analysis, …

Human Identification And Action Recognition Using Small Data And Deep Domain Adaptation, Alexander M. Glandon

Electrical & Computer Engineering Theses & Dissertations

Human identification and human action recognition problems are two important research areas for real-world security and surveillance applications. In both human identification and action recognition, it is necessary to operate by collecting small datasets in the field, possibly in a short time window of observation. This dissertation studies and develops computational modeling and high-performance machine learning (ML) and deep learning (DL) models for human identification and human action recognition using small amounts of data. These methods and computational models may be useful for different security and surveillance applications.

This dissertation on human recognition develops a ML computational model to estimate …

Aluminum As A Tracer Of Dust Deposition To The Ocean: A Case Study From The Bermuda Region, Tara Elizabeth Williams

OES Theses and Dissertations

Aluminum (Al), a major component of mineral aerosol (dust), partially dissolves in seawater and is widely used as a tracer for estimating time‐averaged dust fluxes to the ocean. Such estimates rely on dissolved Al (DAl) inventories in the surface mixed layer (SML), an assumed SML residence time of DAl (_TDAl), the fractional solubility of Al in dust (Al_S), and the mass fraction of Al in dust. In this study, dust flux estimated from seasonal, water-column DAl data from the Bermuda Atlantic Time-series Study (BATS) region are compared with direct dust flux estimated from contemporaneous measurements of …

Investigation Of Laser Based Flow Diagnostics With Metastable Argon, Sterling S. Gordon

Physics Theses & Dissertations

The overarching motivation of this work is the development of seedless, non-intrusive, laser-based diagnostics for supersonic airflow in wind tunnels. To advance this goal, this dissertation fo-cuses on three-photon excitation in a research-grade argon beam within a tabletop vacuum system, which offers a controlled environment for testing and refining the approach. The chosen excitation scheme drives argon atoms to the 3d[5/2]₃ state using a pulsed Ti:Sapphire laser system, enabling time-of-flight (ToF) measurements on atoms that subsequently undergo a multi-step decay to the metastable 4s[3/2]₂ state. Although full realization of this excitation scheme was hindered by technical …

Margalefidinium Polykrikoides Group Iii Va, Usa Strain Growth And Sac-Like Pellicle Cyst Dynamics, Eduardo Pérez Vega

OES Theses and Dissertations

Margalefidinium polykrikoides is a harmful cosmopolitan dinoflagellate that blooms in coastal waters. The effect of temperature and salinity on the growth of M. polykrikoides VA strain was examined using microscopy and growth models. M. polykrikoides Group III VA strain grew better at warmer temperatures and lower salinities than M. polykrikoides Group III NY strain, Group I Korea strain, and Japan strain (unknown group). Modelers need to use the temperature and salinity growth responses from M. polykrikoides Group III VA strain to better simulate and predict M. polykrikoides blooms in the Chesapeake Bay.

Dinoflagellates produce cysts as a strategy to withstand …

On The Scalability Of Anisotropic Mesh Adaptation On Distributed And Shared Memory Architectures For Numerical Approximations, Kevin Mark Garner Jr.

Computer Science Theses & Dissertations

Mesh generation is a critical component in numerical approximations of Partial Differential Equations (PDEs). One such example includes Computational Fluid Dynamics (CFD), as CFD simulations in turn are crucial for applications in many industries, such as personalized healthcare and the design of aerospace vehicles. Generating high quality meshes for large-scale CFD problems presents a significant bottleneck in the CFD workflow. This dissertation proposes “fast,” parallel 3D mesh generation methodologies that are designed to leverage the concurrency offered by emerging High-Performance Computing (HPC) architectures. First, a distributed memory method is presented that integrates a sequential state-of-the-art isotropic, advancing front local reconnection-based …

Reading The Romance Reader: Booktok, Algorithmic Subjugation, And The Fight For Cultural Legitimacy, Emily Maranto Hill

Communication & Theatre Arts Theses

This thesis examines the transformation of romance reader identity through the lens of BookTok, investigating how digital platforms grant cultural legitimacy while simultaneously subjugating community practices to algorithmic control. Romance readers historically developed emotional labor practices, counter-public formation strategies, and fan-driven meaning-making to resist decades of cultural marginalization. Through analysis of TikTok's platform attributes, user behaviors, and the viral Tillie Cole controversy, this study traces how BookTok converts these resistant practices into behavioral data optimized for engagement rather than authentic discourse. The research employs theoretical frameworks including Janice Radway's ethnographic analysis, Shoshana Zuboff's surveillance capitalism, Nick Srnicek's platform capitalism, and …

Two Essays On Customer Loyalty, Arjang Attar Shoushtari

Theses and Dissertations in Business Administration

Customer loyalty is vital for business success, yet most research treats loyal customers as a uniform group. This essay challenges that assumption by proposing that attitudinally loyal customers are psychologically heterogeneous. Drawing on Construal Level Theory (CLT), I introduce the construct of Consumer-Brand Construal Level (CBCL) to distinguish loyal customers based on how abstractly or concretely they construe their brand relationships. I conceptualize two loyalty mindsets, macro-loyalty (abstract, big-picture) and micro-loyalty (concrete, detail-focused), and argue that even highly loyal consumers differ meaningfully in their CBCL. I develop and validate a new CBCL scale (Studies 1–2) and then test how these …

Schema, Stigma, And The “We-Them” Divide: Perspectives On Ageism From Everyday Life To Healthcare, Temple D. West

English Theses & Dissertations

Ageism remains a pervasive and often underexamined form of discrimination, affecting older adults across both everyday and clinical contexts. This paper explores how cognitive schemas—mental frameworks that shape perception and experience—and stigma interact to reinforce a “we–them” divide between and older patients and healthcare providers, as well as between older and younger individuals in broader society. Through focus groups and listening to the voices of older patients, this study examines how assumptions of age-based decline are embedded in society and inform schemas of ageism. It considers how those schemas shape the spoiled identity of older people as a stigmatized group, …

Machine Learning For Anomaly Detection In Neural Network Security And Srf Cavities, Hal Ferguson

Electrical & Computer Engineering Theses & Dissertations

This dissertation explores the development and deployment of machine learning approaches to address critical challenges in anomaly detection across two distinct domains: neural network security in federated learning settings and cavity behavior analysis in particle accelerator operations at Jefferson Lab in Newport News, Virginia. Anomaly detection identifies deviations from expected patterns, safeguarding systems in cybersecurity, industry, and research against malicious activities and failures. This dissertation demonstrates how our machine learning approaches enhance detection accuracy and efficiency in both neural network security and industrial applications.

First, we investigate vulnerabilities in deep neural networks deployed in federated learning. Although federated learning preserves …

Aiding And Abetting Scientific Integrity In U.S. Federal Government Agencies, Keeley Townsend

Theses and Dissertations in Business Administration

Science can play a critical role in supporting sound public administration and policy decisions. However, the value that science provides to government decision-making is contingent on a government’s scientific integrity standards and the degree to which employees adhere to those standards when conducting, managing, using, or communicating about science. Within the U.S. federal government, scientific integrity standards have historically been defined and applied inconsistently, at times resulting in harmful government actions.

Since at least 2000, the U.S. Congress and several executive administrations have taken steps to strengthen scientific integrity in government operations. One recent step included requiring all federal government …

Graduate Physical Therapy Students Perceived Benefit Of Prior Anatomy Experiences Following Their First Semester Graduate Physical Therapy Anatomy Course, Austin Alexander

EVMS School of Health Professions Theses & Dissertations

Human anatomy stands as a cornerstone prerequisite for admission into graduate-level Physical Therapy Programs. As such, prior anatomy experiences need to prepare students for success in graduate-level coursework. However, studies have demonstrated that undergraduate anatomy courses vary in their ability to predict success in graduate Physical Therapy anatomy coursework. This research aimed to utilize students' perceptions of their undergraduate anatomy experiences to predict grades in graduate-level Physical Therapy anatomy coursework. The multinomial logistic regression in this study revealed that the absence of perceived preparedness was a significant predictor of membership in the C graduate anatomy grade group. Students who did …