Digital Commons Network^™

Mechanisms Of Synergy Between Nanosecond Pulsed Electric Field (Nspef) And Cold Atmospheric Pressure Plasma Discharge (Cap) In Pancreatic Cancer: The Role Of Ros-Mediated Oxidative Stress And Apoptosis, Zobia Minhas

Biomedical Sciences Theses & Dissertations

Pancreatic ductal adenocarcinoma is a highly lethal malignancy characterized by poor prognosis and resistance to conventional therapies. Novel treatment strategies are needed to overcome this resistance. Non-thermal physical modalities, including nanosecond pulsed electric field (nsPEF) and cold atmospheric pressure plasma discharge (CAP), have emerged as potential anticancer approaches; however, the mechanisms underlying their combined effects remain unclear.

This study evaluated whether nsPEF enhances CAP-induced cytotoxicity and investigated the associated molecular mechanisms using the murine Pan02 pancreatic cancer cell line. Cell viability was assessed by WST-1 metabolic activity assays and electric cell–substrate impedance sensing (ECIS). Intracellular reactive oxygen species (ROS) were …

Improving Fairness On Semantic Segmentation Using Large Language Models, Samuel E. Burggraf

Electrical & Computer Engineering Projects for D. Eng. Degree

As machine learning systems are increasingly integrated into critical decision-making processes, ensuring fairness in their design and implementation has become a significant concern. While fairness research has primarily focused on specific protected attributes, less attention has been given to spatial fairness, which can affect individuals at specific locations. If fairness is not addressed, models may systematically underperform in certain regions or across populations which can lead to unequal access to accurate predictions and potentially biased decision-making. Fairness considerations should extend across all machine learning applications to align with the National Institute of Standards and Technology (NIST) guidelines of fair and …

From Invisible Injury To Measurable Impact: Exploring Associations Between Peripheral Biomarkers Of Neuroinflammation And Mental Health Outcomes After Mtbi, Lauren Leggett Smith

Psychology Theses & Dissertations

Mild traumatic brain injury (mTBI), often referred to as a “silent epidemic,” accounts for the majority of traumatic brain injuries worldwide and is increasingly linked to persistent psychiatric outcomes. Despite its prevalence, mTBI remains understudied due to diagnostic challenges, underreporting, and misperceptions of its clinical significance. The present study examined whether peripheral biomarkers of neuroinflammation and astroglial injury—tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), and glial fibrillary acidic protein (GFAP)— mediate associations between mTBI history and psychiatric symptom severity, including depression, anxiety, and posttraumatic stress disorder (PTSD). Participants were 138 traumaexposed adults recruited from an urban university and surrounding community, with …

Temperature-Induced Uncertainty In Fixed-Context Retrieval-Augmented Generation, Steven Zeng, Murat Kuzlu

Cybersecurity Undergraduate Research Showcase

This study examines how decoding temperature affects output uncertainty in a fixed-context retrieval-augmented generation (RAG) system. We define uncertainty as the semantic dispersion among repeated answers under the same fixed retrieved context, with greater dispersion interpreted as higher uncertainty. To isolate this answer-generation variability from retrieval drift, each question was paired with a fixed retrieved context, and repeated generations differed only in temperature. The experiment used nine questions drawn from a machine-learning textbook corpus, with three questions each at easy, moderate, and hard difficulty. Each question was evaluated at five temperatures (0.0, 0.25, 0.5, 0.75, and 1.0) over 30 iterations, …

Phishing Restraint: University Simulated Phishing Campaigns, Alexander M. Abou Khir

Cybersecurity Undergraduate Research Showcase

Universities face heightened vulnerability to phishing attacks due to their open information-sharing culture and diverse user populations. This study examines how phishing exploits human factors within campus environments and evaluates three major training strategies: embedded phishing, microlearning, and role-based instruction to understand their individual and combined effectiveness. I explored studies that implement these strategies in pairs and use the strategies alone, identified trends in susceptibility reduction, behavioral reinforcement, and contextual relevance. I suggest that, while each method independently improves user awareness, multiple approaches offer stronger, more adaptable protection by addressing both psychological triggers and role-specific risks. The paper contributes a …

Hijacking The Prompt: A Survey Of Prompt Injection Attacks, Detection, And Defense In Large Language Models, Edward J. Griggs

Cybersecurity Undergraduate Research Showcase

Prompt injection attacks, ranked the number-one vulnerability in AI systems by OWASP's 2025 Top 10 for Large Language Model Applications, remain largely unsolved, and this survey examines why. As large language models (LLMs) are deployed across enterprise workflows, agentic systems, and consumer tools, their fundamental inability to distinguish trusted instructions from untrusted user data has created a persistent and expanding attack surface. This paper presents a structured taxonomy of prompt injection attack vectors, including direct injection, indirect injection, multimodal attacks, tool and agent exploitation, hybrid chained techniques, and autonomous propagating threats. These vectors are mapped across five impact categories (data …

Limitations Of Signature-Based Network Intrusion Detection Under Modern Traffic Conditions, Henry Guidry

Cybersecurity Undergraduate Research Showcase

Network Intrusion Detection Systems are tools used to monitor network traffic and alert to suspicious or harmful activity before it can cause harm. Signature-based versions of these systems are a foundation for intrusion detection, operating by finding common patterns and forming malicious signatures. However, three developments in modern network environments have greatly impacted the significance of Network Intrusion Detection Systems. These three developments are the near-complete adoption of end-to-end encryption, the use of sophisticated packet fragmentation techniques, and the processing demands of high-throughput networks. Encryption makes deep packet inspection practically infeasible by transforming inspectable payloads into ciphertext, forcing NIDS to …

Artificial Intelligence Moderation In Online Gaming: A Cybersecurity Analysis Of Risks And Defenses, Labib Khan

Cybersecurity Undergraduate Research Showcase

This research paper will examine the role of artificial intelligence (AI) moderation systems in enhancing cybersecurity within online gaming environments. As multiplayer platforms increasingly rely on real-time text, voice communication, and user-generated content, developers have implemented AI-driven tools such as natural language processing (NLP), speech recognition, and behavioral analytics to detect harassment, toxic behavior, cheating coordination, and other malicious activity. These systems enable gaming companies to efficiently monitor large volumes of player interactions, improving response times and helping maintain safer and more controlled digital environments for users across global gaming communities of varying sizes and activity levels.

While these technologies …

Ai's Double Edged Sword: Fighting Against Synthetic Csam, Shekhinah Adra Green

Cybersecurity Undergraduate Research Showcase

The rapid advancements in generative artificial intelligence has introduced new challenges in the production and distribution of synthetic child sexual abuse material (CSAM). AI has the capabilities of creating highly realistic imagery and videos, which  raises serious legal and ethical concerns, increasing the risk of harm, exploitation, and revictimization.

This paper discusses the legal improvements needed in order to lower the change of legal loopholes, how digital forensic analyst use advanced tools to identify and investigate synthetic material, and different methods to start the reduction of synthetic CSAM.

Escaping Isolation: An Analysis Of Virtual Machine And Container Breakout Vulnerabilities, Felix Iov

Cybersecurity Undergraduate Research Showcase

Cloud computing providers rely on multi-tenant architectures to maximize resource efficiency. This infrastructure depends on virtualization, which provides isolation between clients. This comes primarily in the form of Virtual Machines (VMs) and Containers. However, “breakout attacks” or “escapes” are a critical threat where attackers bypass these isolation layers to gain unauthorized access to the host system and neighboring environments. This paper surveys virtualization escape threats and analyzes three case studies: a runc container escape (Leaky Vessels), a VMware ESXi VM escape (VSOCKPuppet), and an NVIDIA GPU container escape (NVIDIAScape). Each demonstrates different attack surfaces, including file descriptor misuse, kernel driver …

Bio-Cybersecurity: Securing The Healthcare Industry, Amanda D. Coleman

Cybersecurity Undergraduate Research Showcase

Bio-cybersecurity refers to the aspect of cybersecurity that applies to the biological sciences and the protection of digital biomedical information. Today’s healthcare industry has evolved with the enhancement of internet and biomedical technology. While hospitals and private medical providers remain compliant with the Health Information Portability and Accountability Act (HIPAA) through traditional means of securing documented patient information, the emergence of beneficial internet-based healthcare services like virtual appointments and digital patient records requires new policies and healthcare cybersecurity frameworks to protect sensitive information from unauthorized access. This paper examines the role of cybersecurity in healthcare, the vulnerabilities that exist and …

Security Risks Of Ai-Generated Code In Software Development, Maame Agyekum

Cybersecurity Undergraduate Research Showcase

Artificial Intelligence(AI) has recently forced change globally, public Institutions and as well as national security. Advancement in machine learning, mixed datasets have enabled significantly powerful systems while being capable of operating at a large scale. As innovation and technological advancement increases at rapid pace, issues like a regulation gap where scientific development far exceeds the government’s ability to regulate and establish an effective oversight. As a result, Artificial Intelligence has been controlled by private companies, leading to an industry where speed and profit often outweigh safety and ethical responsibility.

Enhancing Urban Garden Capacity By Linking Biodiversity And Ecosystem Function, Mary T. Nguyen, Carleen Rauh, Shelby Gresch, Charlotte Correiro, Heidi Elmendorf, Adriane Fugh-Berman, Gina Wimp, Alexandra L. Decandia

Virginia Journal of Science

Urban agriculture broadly describes food and plant cultivation in metropolitan areas. While biodiversity is thought to support ecosystem health and resilience, the relationship between above-ground and below-ground diversity has been understudied in urban green spaces. This study examines plant, animal, bacterial, and fungal diversity across three distinct urban habitats: a turf lawn, a forb garden, and a farming space. Using bacterial 16S rRNA and fungal ITS2 sequencing, soil nutrient analyses, and surveys of vegetation and wildlife, we connect diverse philosophies in urban agriculture to their role in advancing community diversity and ecosystem function. We found that different urban gardens support …

Delenda Est Norfolk: The Tidewater Revolts!, Kiera Dillman, Alise Dunham, Kristen Gary, Olivia M. Haris, Nelliel A. Herrera, Logan Holzgrefe, R. J. Lynch, Adam M. Manis, David Mogan, Luke Pickard, Shayla M. Shaw, Landon Swain, Kenny Wilcox, Bailey M. Wimberly, Tracy L. Barnett

Student Projects

Introduction to the Exhibit:

Today—exactly 250 years after the signing of the Declaration of Independence—many Americans trace the origins of the nation’s revolutionary sentiment to Boston, Massachusetts or Philadelphia, Pennsylvania. We remember the violence of March 1770, when red-coated British soldiers fired into a crowded Boston street, massacring innocent colonists and igniting outrage. We recall the patriotic defiance of the Sons of Liberty, who boarded three East India Company ships and dumped chests of imported British tea into the Boston Harbor in December 1773. We can still hear, too, the reverberations of the “shot heard ’round the world,” when British …

Spring 2026 Odu Libraries Newsletter, Alex Aycock, Alisa Faumore, Jennifer Hoyt, William Shingler

Libraries Newsletters

Spring 2026 ODU Libraries Newsletter.

Program: Virginia Academy Of Science 104th Annual Meeting, 2026, Virginia Academy Of Science

Virginia Journal of Science

Full program of the 104th Annual Meeting of the Virginia Academy of Science. Held at  Christopher Newport University, Newport News, Virginia on May 28, 2026.

Proceedings Of The 104th Annual Virginia Academy Of Science Meeting, 2026, Virginia Academy Of Science

Virginia Journal of Science

Proceedings (abstracts) of the 104th Annual Meeting of the Virginia Academy of Science, May 28, 2026, at Christopher Newport University, in Newport News, Virginia.

The Lived Experiences Of Master's Level Counselors In Professional Counseling Association Leadership, Catalina R. Kraft

Counseling & Human Services Theses & Dissertations

Leadership and advocacy are essential for all counselors (Lewis, 2022; McKibben, 2016; Paradise et al., 2010; Sweeney, 2022). However, within research and professional counseling associations, there appears to be a bias in which counselor educators are the expected, default leaders within the counseling profession (Burns, 2015; Kleist, 2018; Speciale & Goodrich, 2020). While counselor educators may have experience as counselors, they primarily work in academia, so their experiences do not authentically represent the needs of professional counselors. Counseling leaders need to represent and understand the people they serve: counselors. Therefore, this study sought to understand the lived experiences of master’s …

Exploring The Physical Education Experiences Of Blind And Visually Impaired Hispanic Multilingual Learners In Integrated Settings, Sheyla G. Martinez-Rivera

Human Movement Studies & Special Education Theses & Dissertations

Although students with visual impairments (VI) are increasingly placed in integrated physical education (PE) classes (U.S. Department of Education, 2023), the embodied experiences of those who also identify as multilingual learners (MLs) and as Hispanics remain largely unexplored. This retrospective qualitative study examined how these students experience integrated PE during their K-12 education, focusing on how language and disability identities shaped their participation. Participants included seven Hispanic students, all MLs, and identified under the Individuals with Disabilities Education Act (IDEA) as blind or visually impaired. At the time of the study, participants were between 18 and 33 years old and …

Exploring The Perceptions Of United States Dentists And Dental Hygienists Towards Implementation Of New Workforce Shortage Policies, Hite N. Jones

Dental Hygiene Theses & Dissertations

Background: There is a perceived national dental hygiene shortage causing delays in receiving preventive treatment and potentially increasing oral disease risk. States are proposing alternative pathways to allow less-trained individuals to provide dental hygiene care to fill this perceived gap. There is no research to support whether such measures would mitigate the shortage issue. Purpose: Therefore, the purpose of this study was to examine the perceptions of United States (U.S.) dentists and dental hygienists (DH) towards the implementation of new workforce shortage policies and contributing factors and solutions to the workforce shortage. Methods: This descriptive, cross-sectional study included a convenience …

Assessing Stakeholders’ Perceptions Of Organizational Effectiveness Through A Multidimensional Theoretical Model: An Interpretive Phenomenological Qualitative Case Study, Andrea M. Paul

School of Public Service Theses & Dissertations

Nonprofit organizations play a fundamental role in meeting community needs when government resources are limited or nonexistent. For decades, scholars and practitioners have recognized the importance of nonprofit-government partnerships for effective public service delivery. This study examines faith-based organizations as a specific type of hybrid nonprofit organization. As social, economic, and environmental challenges intensify, the need for community-based programs led by faith-based organizations also increases. These organizations are working to combat several of society's wicked problems, including but not limited to homelessness, food insecurity, drug addiction, youth and family services, and climate change. Nonprofit sector performance measurement is often recognized …

Sensemaking By Rural Community College Mid-Level Academic Leaders During Localized Disruptions: A Critical Incident Technique Study, Donata Worrell

Educational Leadership & Workforce Development Theses & Dissertations

Mid-level academic leaders in community colleges play a critical role in the success of community colleges. Beyond performing administrative tasks, they advocate for faculty, staff, and students as well as implement directives. Their work is affected by localized disruptions. However, limited research has examined how these leaders experience such disruptions. The purpose of this qualitative study was to explore how mid-level community college leaders experience and make sense of those unexpected operational disruptions and their emotional responses to those events. Guided by Weick’s theory of sensemaking, this study used the critical incident technique (CIT) to collect detailed accounts of the …

Exclusive Neutral Pion Electroproduction Cross Section Measurements With A Neutral Particle Spectrometer, Mitchell R. Kerver

Physics Theses & Dissertations

Deep Virtual Compton Scattering (DVCS), the exclusive electron-proton scattering process ep →e′p′γ, provides access to generalized parton distributions (GPDs), which correlate informa tion about the longitudinal momentum and transverse spatial structure of quarks inside the nucleon. Experiment E12-13-010 in Hall C at Jefferson Lab was designed to take high-precision measure ments of the DVCS cross section over an extended kinematic range using the newly commis sioned Neutral Particle Spectrometer (NPS). The NPS features a high-resolution electromagnetic calorimeter and a streaming data acquisition system optimized for operation at high luminosities. This thesis presents the detector and analysis work carried out to …

Engineering Cryogenic Thermal Links And Transport Systems For Conduction-Cooled Superconducting Cavities, Jacob B. Lewis

Mechanical & Aerospace Engineering Theses & Dissertations

The Thomas Jefferson National Accelerator Facility (Jefferson Lab) is currently developing a prototype conduction-cooled 915 MHz SRF cryomodule proposed for industrial use, capable of increasing the energy of an electron beam with 5 mA current by ~ 4 MeV. Two Nb3Sn resonant cavities are under development for this project, in which cryogenic cooling is provided by closed cycle refrigerators (cryocoolers). One cavity utilizes high-purity electroformed copper on the outer surface to provide heat extraction from the cavity, the other relies on high-purity aluminum thermal links. This thesis investigated the thermal conduction pathways between the cavities and cryocooler cold heads, with …

Behavioral, System, And Informational Cyberattacks: A Human-In-The-Loop Driving Simulator Experiment, Samuel Petkac

Psychology Theses & Dissertations

Advanced technologies such as sensors and AI/ML algorithms have enabled increasing levels of automated driving system that detects, responds, and even predicts changes in a driving environment supported by wireless connectivity to nearby vehicles and infrastructure. Such connected and automated vehicles (CAVs) can be particularly vulnerable to cyberattacks targeting not only infotainment systems but also firmware and other applications, critically compromising driver safety. As we anticipate a “mixed” traffic where vehicles with various levels of automated technologies share the road for the foreseeable future, it is urgent to systematically examine types of possible cyberattacks and control human behaviors in such …

Downstream Effects Of Post Aerobic Digestion And Divalent Cation Treatment: Dewaterability, Phosphorus Mitigation, And Process Odors, Maya Marisol Quijano Garcia

Civil & Environmental Engineering Theses & Dissertations

This study evaluated post-aerobic digestion (PAD) with aeration, mixing, and divalent cation addition to improve phosphorus capture, dewaterability, and odor control in thermal hydrolysis process (THP)–treated anaerobic digestate at the Hampton Roads Sanitation District’s Atlantic Treatment Plant. A three-day PAD process was operated under constant air flow (5 LPM) and dissolved oxygen (DO)-setpoint (0.2 mg/L) aeration conditions with Ca(OH)₂ or Mg(OH)₂ dosing. Aeration and mixing alone increased polymer demand by 14–46 % relative to untreated influent, indicating enhanced extracellular polymeric substance release. Chemical conditioning partially mitigated this increase but did not restore polymer demand to baseline levels. Dewatered cake total …

Swimming Behavior Of Longfin Squid Doryteuthis Pealeii Paralarvae: Escape Jets To Pirouettes, Mel Lhuillier

Biological Sciences Theses & Dissertations

Upon hatching, squid paralarvae must become proficient at locomotion and prey capture before their yolk reserves are depleted, while also contending with the physical constraints associated with low/intermediate Reynolds number (Re) environments. Although some aspects of behavior and jet dynamics have been examined in squids during early ontogeny, little is known about routine behaviors in paralarvae, whether repeatable patterns are employed, or how these behaviors are achieved dynamically. To better understand swimming behaviors and the propulsive flows that drive them in paralarvae, high-speed video data and digital particle image velocimetry (DPIV) data were collected simultaneously from longfin squid Doryteuthis pealeii …

Bug-In-Ear ECoaching To Enhance Parents' Use Of Embedded Learning Opportunities With Preschool-Age Children With Autism Spectrum Disorder, Aeshah Alturki

Human Movement Studies & Special Education Theses & Dissertations

The increasing prevalence of autism spectrum disorder (ASD) has heightened the need for effective communication interventions. Parents are key partners in intervention and, with appropriate support, can serve as effective intervention agents. However, parents often require ongoing support to implement evidence-based practices. The purpose of this study was to experimentally evaluate the effects of online Bug-in-Ear (BIE) eCoaching on parents’ fidelity of embedded choice-making during family routines with their preschool-aged children with ASD. This study also examined the generalization and maintenance, children’s communicative responses, and parents’ perceptions of the intervention. A single-subject nonconcurrent multiple baseline design across two parent–child dyads …

Modeling Early Indicators For Success In An Associate Degree In Nursing Program, Joseph D. Moss

Educational Leadership & Workforce Development Theses & Dissertations

Persistent nursing workforce shortages across the United States have increased the importance of Associate Degree in Nursing (ADN) programs as primary entry points into the profession. Community colleges prepare a substantial portion of the nursing workforce; however, attrition within ADN programs limits the number of graduates entering practice. Understanding factors associated with academic performance and program completion is essential for strengthening nursing education pathways and supporting workforce development. The purpose of this quantitative study was to examine early academic and sociodemographic factors associated with successful completion of an ADN program at a suburban community college.

Guided by Becker’s Human Capital …

Quantifying Nutrient Fluxes Across The Sediment-Water Interface In The Lafayette River Estuary, Adriana E. Amrhein

OES Theses and Dissertations

The Lafayette River, a shallow, eutrophic tributary of the Chesapeake Bay, experiences seasonal harmful algal blooms (HABs). While management efforts focus on reducing external nutrient inputs, internal loading from benthic sediments remains poorly constrained. This study quantifies spatial and seasonal variability in nutrient and radium isotope fluxes across the sediment–water interface at three sites where HABs are known to initiate and represent contrasting sediment textures and hydrodynamic conditions. Sediment cores and porewater samples were collected in summer 2023 and winter 2024 to measure grain size, porosity, dissolved nutrients (NH₄⁺, NOₓ⁻, PO₄³⁻), and radionuclide activities (²²⁴Ra and ²²⁸Th). Radium isotope disequilibrium …