Digital Commons Network^™

Bringing To Life Our Mission And Vision: The Role Of Professional Development In Instructional Technology, Katherine I. Britton

All Dissertations

Despite improved access to digital tools and increased demand to prepare students for the 21st-century workforce, K-12 educators still have difficulty balancing technology, pedagogy, and content in the classroom. In the rural school district of Pleasant County, there is variation in the utilization of instructional technology to engage students as content creators, collaborators, critical thinkers, and communicators. This problem was substantiated as evidenced by the study of the Effective Learning Observation Tool, which identified the domain of engaging, learning-centered instruction as an area of opportunity for the district, with the lowest score in digital learning (Cognia, 2023). In this study, …

Accurate Temporal Integration Schemes For Nonlinear Adsorption Problems, Evan D. Butterworth

All Dissertations

We consider a nonlinear transport problem to model the chromatography process of high-capacity multimodal membranes. Robust and efficient algorithms that simulate these bioseparation processes are critical to developing therapeutics for various chronic illnesses and infectious diseases. However, much of the current methodology focuses on stabilization and linearization techniques, often implementing low-order time-discretizations and linearized adsorption, resulting in inefficiencies and inaccuracies in the numerical solution. Utilizing Rothe's method, we develop various time-discretization schemes coupled with the finite element method to solve the fully implicit problems. Stability and solvability results are presented for several methods. Through multiple high-level software implementations paired with …

Towards Securing Ai Systems: Investigating Threats In Multimodal Autonomous Driving & Rag Systems, Saket Sanjeev Chaturvedi

All Dissertations

Artificial Intelligence (AI) systems have become central to high-stakes applications such as autonomous driving and language-based decision support. As their deployment accelerates, ensuring the security and trustworthiness of these systems becomes paramount. Among the most stealthy and potent threats are backdoor attacks, where models behave as expected under normal conditions but exhibit malicious behavior when triggered by specific inputs, either digital or physical.

This thesis investigates novel backdoor and adversarial vulnerabilities across two emerging classes of AI architectures: (1) multimodal 3D object detection systems that fuse LiDAR and camera data, and (2) Retrieval-Augmented Generation (RAG) systems that pair large language …

Constructing Code-Based Zero-Knowledge Proofs Leveraging Generic Errors And Bounded Vectors, Freeman Slaughter

All Dissertations

Quantum computing is developing at an expeditious rate, and once fully scalable quantum computers become realized, classical cryptographic systems face obsolescence. This approaching peril has prompted a paradigm shift away from pre-quantum cryptography and towards post-quantum primitives, such as those that arise from the field of coding theory. Among these, zero-knowledge proofs have emerged as a dynamic tool instrumental in constructing quantum-resilient digital signature schemes.

We being by introducing HammR, a pre-quantum zero-knowledge proof protocol designed to verify Hamming weight and entry constraints of error vectors, and comprehensively establish its security. Subsequently, we extend HammR to the multi-party computation setting, …

Emotional Safety In Pediatrics: The Impact Of Child Life Services On Healthcare Professionals’ Perceptions Of Their Own, Patients’, And Families’ Outpatient Experiences, Jenni Davis

All Dissertations

Medical visits, regardless of setting, are stressful for children and their families. Care that focuses on the emotional safety of children and families can help reduce this stress. However, not all staff feel prepared to provide emotionally safe care. Child life specialists (CLSs) are specifically trained to support emotional needs during healthcare encounters. Their presence may help staff stress as well, not just stress for children and families.

This study used three surveys to understand stress among healthcare staff working in pediatric outpatient clinics and surgery settings, and how support from a CLS affects staff, children, and families. All staff …

Exploring The Socio-Cultural Dynamics Of Nocturnal Urban Landscapes: A Case Study, Jie Kong

All Dissertations

This dissertation explores nighttime social leisure activities in public parks within urban working- and middle-class communities. As cities confront climate change, shifting work schedules, and post-pandemic lifestyles, neighborhood parks have gained renewed importance after dark, especially in areas where households have limited private space. These non-commercial nighttime uses are often overlooked in planning, design, and built environment studies, yet they play a vital role in fostering cultural identity, social connection, and community well-being.

Focusing on Williamsburg and Bushwick in Brooklyn, New York, this research investigates how public parks are used at night, by whom, and for what purposes. New York …

Are They Ready? Impacting Kindergarten Readiness Through The Science Of Reading, Traci T. Boyles

All Dissertations

The purpose of this research study was to investigate how Science of Reading (SOR) professional development for preschool teachers, implemented through collaborative teaching and assessment cycles, influences the kindergarten readiness of preschool students.

Students from impoverished families start kindergarten at a considerable disadvantage regarding literacy. Literacy-focused curricula and professional development for teachers strongly affect reading outcomes. Multi-Tiered Systems of Support (MTSS) provides a systemic framework for data-based problem solving and decision-making. The MTSS framework aligns literacy interventions with tiered supports to ensure all students receive the assistance they need to achieve reading proficiency.

The South Carolina Child Early Reading Development …

Online Multiobjective Optimization, Kristen Joyce

All Dissertations

Online optimization (OO) is an iterative process of decision making under uncertainty. At every step, a decision is made before the outcome of this decision is known. For the online optimization model, the objective function is unknown at the time the decision is being made. It is very likely that the taken decision is not optimal, so the decision maker incurs a loss, called regret, in every iteration. The goal of the online optimization algorithm is to compute a decision at every step so that the overall regret cost is minimized. In particular, the average regret produced by an ideal …

Nature Playscape: Investigating Children’S Play Behavior And Environmental Affordances In A School Playground, Sara E. Billie

All Dissertations

Existing research demonstrates that the physical environment can either hinder or enhance children’s play behavior. Diverse outdoor settings are especially effective in fostering motivation to play, contributing to children’s physical, social, and cognitive development. In response to the growing belief that outdoor play is both a necessity and a right for young children, particularly amidst concerns about nature deficit disorder and the rise of urban living among children, this study investigates the concept of nature playscapes, or naturalized playgrounds, as a vehicle for reconnecting children with the natural world. While contemporary playground design often struggles to balance structure with creativity, …

Ecomorphological Diversification Of Tooth Complexity In The Oral Jaws Of Marine Teleostean Fishes, Keiffer L. Williams

All Dissertations

Teeth are essential biological tools that function as a direct interface between predator and prey, thus providing essential insights into the evolutionary history and ecological diversity of vertebrates. Historically, studies on vertebrate dentitions have been qualitative and focused on mammals. More recently, quantitative methods have been developed that can reliably measure tooth surface complexity. These methods have been applied across both mammals and saurian reptiles to test for correlations with diet, leading to the conclusion that herbivorous species generally possess higher overall tooth complexity than any other dietary group. Surprisingly, the relationship between tooth complexity and diet in the most …

Interactions Of Biorational And Synthetic Dmi Fungicides For Control Of Fruit Diseases, Johanna Wesche

All Dissertations

Biological fungicides are increasingly investigated as sustainable alternatives to synthetic fungicides in fruit crop protection. This dissertation examines the interactions between two commercial biological fungicides, Bacillus subtilis AFS032321 (Theia) and metabolites of Pseudomonas chlororaphis AFS009 (Howler EVO); and demethylation inhibitor (DMI) fungicides, with a focus on compatibility, synergistic potential, and resistance implications. In vitro assays revealed that commonly used DMI fungicides difenoconazole, metconazole, tebuconazole, and propiconazole inhibited vegetative growth of B. subtilis at concentrations above 50 µg/ml, whereas mefentrifluconazole promoted colony expansion. Under controlled conditions, lesion development on detached fruit was inhibited synergistically when Theia was combined with the growth-promoting …

Studies On The Effects Of Operator Fatigue On Performance, Trust, And Workload Demand In Human-In-The-Loop Ai-Enabled Drone Systems, Snowil Lopes

All Dissertations

Civil infrastructure must be regularly inspected to ensure its safety and reliability. Traditionally, risk engineers performed these inspections manually and in person. However, with the introduction of drones equipped with artificial intelligence (AI), inspections of civil infrastructure can now be conducted remotely. These AI-enabled drones capture and analyze images, helping engineers monitor large and complex structures from a distance. However, working with integrated systems consisting of multiple drones, especially those with varying levels of reliability, can be challenging. Operators must divide their attention, determine how much to trust each drone, and manage mental workload, which can affect their performance. Another …

Empowering Employability: Voices Of Black Women Leveraging Community Cultural Wealth In An Undergraduate Agricultural Program, Rose Marie Somers

All Dissertations

Across the nation, agricultural industry professionals have bemoaned the shortage of qualified professionals, expressing an expanding need for graduates with a blend of discipline-specific and employability skills to advance the sector. Research indicates that the future of the US agriculture sector hinges on a diverse and skilled workforce. Yet, a paucity of literature exists on Black women's enduring legacy, experiences, and how they understand and develop 21st-century critical transferable professional competencies needed to address complex challenges in modern agriculture. Black women have a long tradition in agriculture and a wealth of cultural knowledge, skills and innovations that are untapped. This …

From Classroom To Workplace: Evaluating Communication Curriculum In Physician Assistant Education, Camryn G. Evett

Honors Thesis

Effective communication is a critical competency for physician assistants (PAs), impacting patient outcomes, interprofessional collaboration, and clinical decision-making. This paper explores the many communication challenges faced by PAs, including navigating supervisory relationships, clarifying scope of practice, building patient trust, and managing clinical interactions. It also examines how the national accrediting and certifying bodies such as the Accreditation Review Commission on Education for the Physician Assistant (ARC-PA), the National Commission on Certification of Physician Assistants (NCCPA), and professional organizations such as the American Academy of Physician Associates (AAPA) shape communication training through formal standards. These frameworks influence curricular design, assessment methods, …

Improved Rumen Microbiome Interpretation Via Empirical Filtration Derived From Known Mock Microbiomes, Wesley A. Tom

School of Biological Sciences: Dissertations, Theses, and Student Research

The rumen microbiome plays a critical role in ruminant health and performance. As a consequence, many studies investigate microbial community composition using 16S rDNA based sequencing. As such, data quality and data filtering are critical to accurately identify microbial community composition. In this study we use mock communities to empirically select data filtering parameters to reduce artifact populations and compared the effect of filtering using different bioinformatic pipelines using rumen bacterial community data. The filtering parameters identified provides consistent estimates of rumen microbial diversity, regardless of bioinformatic pipeline utilized and provides a more accurate view of microbiome structure and composition. …

Triggering Change In Child Protection Law: A Case Study Of Firearms And Domestic Violence In Nova Scotia, Manitoba, And Ontario, Ashley Thornton

Dalhousie Journal of Legal Studies

The intertwining complexities of child protection, domestic violence, and firearms pose profound challenges for families and the legal system. This paper examines their interplay, focusing on how these issues can subject children to harm, with a specific focus on case law and relevant legislation from Nova Scotia, Manitoba, and Ontario. These three provinces have been selected due to: i) the locality and inherent relevance of Nova Scotia’s jurisdiction given the location of the Schulich School of Law, ii) the high number of reported court decisions in Ontario, and the unique protections created through amending the Child, Youth, and Family Services …

Professional Pathways In Business: The Role Of Social Capital For Latinx Students, Maritza S. Campo, Manuel Pech, Teresa Madamba

Journal of College Access

Latina/os currently represent one of the most significant contributors to the United States economy, possessing $3.78 trillion in purchasing power. Despite constituting the second largest demographic group in the nation, Latinx representation in business graduate programs and corporate leadership positions, including board memberships, remains below 5%. As Latinx enrollment and graduation rates in higher education have consistently increased over the past decade, it has become increasingly imperative to examine how Hispanic-Serving Institutions can more effectively support Latinx students in their transition from academic to professional careers in business. This study investigates the impact of initiatives implemented by one Hispanic-Serving Institution …

The Acute Effects Of Tetrahydrocannabivarin (Thcv) On Appetite, Caroline M. Sokol

Masters Theses, 2020-current

The purpose of the current study was to assess the acute effects of tetrahydrocannabivarin (THCV) on appetite. Participants (N = 28) experienced 12.5 mg THCV, 25mg THCV, and placebo in counterbalanced order across three, 3-hr experimental sessions. Following baseline procedures, participants consumed THCV or placebo and completed self-report measures every 30 minutes. A series of repeated measures factorial ANOVAs were conducted to examine potential differences in study outcomes across THCV dosing conditions as well as within session (i.e., baseline, every 30 minutes after dosing (5), end of session) with respect to self-reported hunger, mood, and perceived drug effects (e.g., …

Being Seen And Being With Others: Shame And Interpersonal Relationships, Brandon Yip

Research Collection School of Social Sciences

I seek to vindicate heteronomous shame: shame that one experiences in response to a judgment from another that one does not accept. I suggest that such experiences are instances of interpersonal shame. This is shame that involves a sensitivity to interpersonal ideals, whose instantiation depends partly on the attitudes of others. I defend the importance of such shame by showing how vulnerability to others is a constitutive part of rich interpersonal relationships. The account both casts light on and vindicates the heteronomous shame that is pervasive among marginalised and oppressed groups. Such shame is not irrational but involves an accurate …

Socioeconomic Status Shapes Dyadic Interactions: Examining Behavioral And Physiologic Responses, Jacinth J. X. Tan, Tessa V. West, Wendy B. Mendes

Research Collection School of Social Sciences

With more opportunities for diverse interactions, little is known about how social interactions involving people of different socioeconomic status (SES) may unfold. We investigated social attunement patterns in dyadic interactions involving SES. Unacquainted individuals recruited from the community interacted with similar-or-different-SES partners in the lab (Ndyads = 130). Attunement was assessed throughout the interaction by examining physiological linkage—how much a person’s physiological change is predicted by another’s physiological change, over time. Overall, low-SES participants showed stronger physiological linkage—indicating greater attunement—to partners across SES. Participants also appeared more comfortable when interacting with low-SES partners. There were no SES differences in dominance …

Direct Photopatterning Of Quantum Dots Via Thiol-Yne Click Chemistry, Nicholas Langer, Ofer Kedem

Chemistry Faculty Research and Publications

Functional nanomaterials are revolutionizing electronic devices such as displays and photovoltaics, yet existing semiconductor manufacturing methods struggle to adapt to the unique properties of nanoparticles. In particular, quantum dots (QDs) display density-dependent properties such as tunable energy transfer, yet current preferred methods of producing QD patterns lack control over the density of QDs deposited in specific locations on a surface. Here, we present a photochemical method to generate QD patterns directly from solution onto a functionalized surface, which enables density control. The overall dose of light used in the pattern (visible or UV) determines the surface density of deposited QDs …

Principal Self-Efficacy: A Qualitative Study, Vance E. Self

Electronic Theses and Dissertations

This qualitative study explored elementary principals’ perspectives on the importance of selfefficacy in relation to management responsibilities, instructional leadership, and moral leadership as they impact student achievement measured by the STAAR in a Central Texas school district. The research addressed the growing challenges principals face in high-accountability environments, focusing on how their beliefs in their leadership abilities affect school performance and student outcomes. The purpose was to examine principals’ views on selfefficacy across three domains and to consider implications for leadership preparation, district support, and policy. The study was grounded in a constructivist paradigm and employed a qualitative case study …

Enhancing The Value Of Satellite Earth Observations For Coastal Management: Tools For Collaboration And Co-Development, Nicole Dejeet Bartlett

Graduate Doctoral Dissertations

Despite unprecedented satellite Earth observation (EO) capabilities and free data availability, widespread adoption in coastal management remains limited due to persistent communication barriers between satellite experts and coastal practitioners. This dissertation addresses the fundamental challenge of translating satellite EO technical capabilities into management-relevant applications. Through synthesis of literature, stakeholder interviews, and two multi-year co-development case studies in Virginia's Middle Peninsula and Cape Cod, Massachusetts, this research identifies systematic barriers to satellite EO adoption and develops innovative frameworks for overcoming them.

The work argues for a common language between satellite product developers and coastal managers, identifying communication barriers spanning technical, institutional, …

Quantum Dot Light Emitting Diodes As A Light Source For Photodynamic Therapy, Hamid El Hamidi

Graduate Doctoral Dissertations

ABSTRACT:

QUANTUM DOT LIGHT EMITTING DIODES AS A LIGHT SOURCE FOR PHOTODYNAMIC THERAPY

Photodynamic therapy is a cancer treatment modality that involves the accumulation of a photosensitizer, exposure to visible light, and the presence of oxygen, resulting in the formation of highly reactive and cytotoxic singlet oxygen. PDT has been shown to be more effective as the fluence rate decreases due to oxygen availability and the absence of photobleaching. On the other hand, Quantum Dot Light Emitting Diodes QLEDs- a new form of light source based on nanoparticles (quantum dots)- emerge as a potentially advantageous light source for certain types …

Organizational Health Literacy In Pediatric Cardiovascular Programs, Eva Gomez

Graduate Doctoral Dissertations

Health literacy refers to a person’s ability to access, understand and use health-related information in order to effectively manage one's health and navigate healthcare experiences. This responsibility does not rest solely upon the individual; healthcare organizations also have a vital role in assisting individuals in accessing, understanding and using health information through their interactions with the healthcare system. Organizational health literacy (OHL) can serve as a strategy to ensure that all individuals have equitable access to health information and services. The Ten Attributes of a Health Literate Healthcare Organization established the foundational principles of organizational health literacy. The present study …

Exploring Transgender And Gender Expansive Youth's Experiences With Vicarious Minority Stress, Erin T. Pereida

Graduate Doctoral Dissertations

In the United States (U.S.), transgender and gender expansive (TGE) youth experience elevated rates of depressive symptoms, self-harm behaviors, and suicidality compared to cisgender peers. Mental health professionals and researchers often use the gender minority stress model to explain these elevated rates, positing that stressors related to minority identity experienced above and beyond normative daily stress contribute to adverse mental health outcomes. One emerging component of the model requiring further investigation is vicarious minority stress; stress experienced indirectly through witnessing or learning of gender minority stressors affecting other TGD individuals or the community more broadly. The present study explored this …

The Role Of Androgen Receptor And B2/Alu Sine Rna Interaction In Hippocampal Dendritic Development, Troy A. Richter

Graduate Doctoral Dissertations

Once dismissed as “junk”, transposable elements have recently gained recognition for their regulatory roles, especially in the brain. During development, circulating androgens promote proper morphological development of hippocampal neurons. We and others have shown that murine B2 SINE RNA is a regulator in the rodent hippocampus. It is unknown, however, if B2 is necessary for the proper development of hippocampal neurons. This dissertation investigates the role of murine B2 in the development of primary hippocampal neurons in combination with androgen treatment. We first examined the role of ALU SINE and androgen receptor in a prostate cancer cell model and found …

A Case Study Of The Perceived Support Needs Of Community College Faculty, Ramona C. Shelton

Electronic Theses and Dissertations

This qualitative case study explored the perceptions of community college faculty members in Tennessee regarding the supports they feel they need to be successful academicians both inside and outside of the classroom. Thirteen faculty members participated in the study, representing the 4 faculty ranking categories at the institution: adjunct/part-time, new full-time, junior/untenured, and senior/tenured. Interviews were semi-structured to allow the participants the opportunity to share their honest experiences on what support needs they have, how those needs have been met, and what support areas they expect to emerge in the future. Four academic administrators also participated in the study in …

Resistance Training Load-Volume Effects On Maximal Strength, Isometric Force-Time Characteristics, And Force-Velocity Relationships, Chieh-Hsin Yu

Electronic Theses and Dissertations

The investigations concerned the effects of resistance training programs with different load–volume configurations on multiple strength characteristics, including maximal strength, isometric force–time properties, and force–velocity (F–v) relationships. Following a review of training interventions across these variables, two ecologically valid resistance training prescriptions were compared: high-load, low-volume (HLLV) and moderate-load, moderate-volume (MLMV). Fourteen recreationally trained participants were grouped into either HLLV (three sets of two repetitions at ≥ 80% 1RM) or MLMV (three sets of ten repetitions at 60–80% 1RM), incorporated into the main lifts of a 4-week program. Strength was assessed using back squat one-repetition maximum …

From The Battlefield To The Archive: Tracing Testimony In Holocaust Memory, Tiana M. Taliep

War, Diplomacy, and Society (MA) Theses

This thesis portfolio examines the evolving role of testimony in shaping public memory of World War II and the Holocaust. As the last generation of eyewitnesses passes, societies increasingly rely on preserved, mediated forms of testimony to understand and remember traumatic pasts. Testimony, whether handwritten, oral, visual, or digital, is not a neutral historical record but an interpretive act shaped by cultural, political, and technological forces. This portfolio argues that testimony functions as evidence and expression: it transmits trauma across generations while simultaneously reflecting the changing frameworks through which war and genocide are remembered.

The portfolio explores testimony in personal, …