Digital Commons Network^™

A Microservices Approach To Electroencephalography Research In The Public Cloud, Bathsheba Farrow

Computer Science Theses & Dissertations

The rich information content of the brain is embedded in electroencephalography (EEG) data that instantaneously measures its electrophysiological activity. Expansion of EEG data usage for health risk predictions and other applications requires reliable and consistent methods for extracting features from raw signals. However, the intricate nature of EEG signal data analysis is further complicated by the magnitude of variability in current research practices, including data preprocessing strategies. The heavy reliance on antiquated, stove-piped applications and pipelines also highlights a need for improved solutions that enable efficient, distributed preprocessing of large EEG data collections.

To address these challenges, we propose a …

Contributions To Nonparametric Testing In Clustered Data, Hasika Kalani Wickrama Senevirathne

Mathematics & Statistics Theses & Dissertations

Clustered data refers to a specific kind of correlated data where units within the same cluster are correlated while units from different clusters are independent. The number of units in each cluster, known as the cluster size, can be associated with the cluster’s outcome. This is known as the informative cluster size (ICS) and affects the inference drawn from clustered data. Recently, a hypothesis testing method has been developed to detect the presence of ICS. However, considering ICS alone may not be sufficient when comparing outcomes across multiple groups of units within clustered data. The size of a group within …

Prisons Of The Imagination: Carceral Ideology And Race In Science Fiction, Daniel Allen Avant Blachman

Institute for the Humanities Theses

Popular science fiction film and television media commonly deploy narratives and images of prisons and policing, and these discourses in turn are inseparable from racial formations. At the same time, many fans and theorists view science fiction as a genre with immense potential for offering critical consideration of the difference between the fictional and the real world. This thesis examines a range of case studies from popular film and television exemplifying this tension between the perceived generative critical potential of science fiction media and apparent tendency of popular media productions to nearly always fall back on well-worn white supremacist, patriarchal, …

Streaminghub - A Realtime Biosignal Processing Framework For Lab Scale Experimentation, Yasith Jayawardana

Computer Science Theses & Dissertations

In human subjects research, biosignals such as eye movements, heart rate, and brain activity, are often collected and analyzed to find patterns with tangible real-world implications. Modern advancements in technology have sparked interest towards analyzing biosignals in realtime. When developing such algorithms, one may expect to find free, open-source tools that provide easy access to live, recorded, and simulated data streams. Yet, biosignal interfaces are often vendor-specific, making cross-vendor biosignal streaming non-trivial. Likewise, reading biosignal datasets is also non-trivial, as their content may be arranged quite differently.

To combat this divide, we provide the scientific community with a realtime biosignal …

A Comparison Of Specialized And General Orientation Courses For Community College Students, Heather R. Sorrell

Educational Leadership & Workforce Development Theses & Dissertations

This study examined the effect of specialized orientation courses on community college student academic achievement and retention. The study utilized a quantitative design and compared the outcomes of specialized orientation courses to a more generalized orientation course. Due to the lack of previous research, there was little to suggest either a positive or a negative influence on student success measures for a targeted, specialized version of orientation courses. The study found that achievement outcomes did not differ between specialized orientation courses and general orientation courses. The study did find retention differences based on the type of orientation course completed. Students …

An Exploratory Study On E-Learning Software Utilization Among Professional Instructional Designers In Virginia, Mark Richard Parsons

STEMPS Theses & Dissertations

This master's thesis aims to explore the diverse landscape of e-learning software employed by professional instructional designers in Virginia to develop educational content. The study investigated the learning management systems and rapid authoring software, their utilization, the challenges and benefits associated with their usage, and future trends. By gaining insights into the preferences and practices of instructional designers, this research contributes to a deeper understanding of the dynamic field of e-learning software in the context of Virginia's educational landscape.

A Review Of Secondary Technology Education Teacher Needs In Virginia, M. Kathleen Ferguson

Educational Leadership & Workforce Development Theses & Dissertations

Technology education teachers can have varied pre-service training experiences, thus their needs for classroom support may vary greatly. Perkins V requires evidence-based research to justify the use of funding for professional development. This researcher sought to support Virginia’s secondary technology education teachers, professional organizations, and the Virginia Department of Education’s Technology Education Specialist by providing research to determine professional development needs. This three-phase qualitative study used a survey, documents review, and focus groups to triangulate data to provide information about the research questions. The research questions focused on teachers’ educational background, technology program goals, and issues specific to secondary technology …

Flying Wing Aerodynamic Design And Airbrake Integration, Philip Lawson Mantz

Mechanical & Aerospace Engineering Theses & Dissertations

During the 2022-2023 Academic year, the defense contractor, AeroVironment, tasked the Unmanned Aerial Systems Laboratory at Old Dominion University with designing an autonomous drone platform. A brief summary of the aerodynamic requirements included that the drone should cruise at a target cruise speed of 30m/s, the drone would operate up to an altitude of 1500m and be able to land within a 20m radius of a designated landing spot. The laboratory chose a flying wing model. Additionally, the aircraft would have an airbrake system integrated into the platform.

The aerodynamic requirements were configurated through the use of a ‘constraint diagram’. …

Alternative Applications Of Composite Materials To Reduce Radar Cross Section, Mark Patterson

Mechanical & Aerospace Engineering Theses & Dissertations

The use of carbon nanoparticles and graphene in composite materials has created a foundational shift in enhancing performance across mechanical, thermal, and electrical properties. Such applications are vital in the aerospace industry. However, there has not been such a focus on the material use for reducing radar cross section (RCS). Historically, RCS is minimized by designing sharp geometric shapes to deflect or dissipate the incoming electromagnetic waves away from the receiving antenna. However, these designs are not always optimized for aerodynamics. The goal of this research is to understand the application of composite materials and specifically carbon nanotubes (CNTs) to …

Mesostructure Reconstruction Of Prepreg Platelet Molded Composite With Artificial Intelligence, Richard Larson

Mechanical & Aerospace Engineering Theses & Dissertations

Prepreg platelet molded composites (PPMC) are long, discontinuous fiber reinforced polymer materials. PPMC are an important subcategory of composite materials as they are processible into geometrically complex structures and can be produced via high-throughput manufacturing processes, however they have higher stiffness and strength as compared to traditional discontinuous fiber reinforced polymers. However, there is inherent randomness in the structure of PPMCs and as such, PPMC parts frequently require per part testing that is cost prohibitive.

Herein, a method using artificial intelligence is proposed as a more cost-effective method of inspecting PPMC parts. Different artificial intelligence (AI) architectures are explored to …

Parallel-In-Time Implicit Schemes For Nonlinear Pdes, Subhash Paudel

Mathematics & Statistics Theses & Dissertations

An accurate prediction of unsteady physical phenomena arising in various applications (e.g., rotorcraft and turbomachinery flows, fluid-structure interaction, maneuvering flight conditions, etc.) requires a very large number of time steps, thus considerably increasing the total computational time, because conventional time integrators are inherently sequential. Parallel-in-time methods offer a promising direction for drastically reducing the computational time and achieving such scalability that is required for solving these unsteady problems on modern supercomputers with hundreds of thousands of computing cores. The parallel performance of existing parallel-in-time algorithms for nonlinear equations especially of the hyperbolic or mixed type is far from being satisfactory. …

Safe And Efficient Operation Of Mobile Robots In Indoor Environments: A User-Centric Shared Control System With High-Level Navigation Capabilities, Ahmet Saglam

Electrical & Computer Engineering Theses & Dissertations

Hospitalization and isolation can be a traumatic experience for immunocompromised children, especially because they are separated from their families and friends. Social robots have been proposed as a way to improve the quality of care for children hospitalized in isolation by providing alternative means of social interaction and support. Remote control of such robots in a hospital setting, particularly where safety is a major concern, can be a daunting task for young patients.

This dissertation introduces a multilevel shared control system for mobile robots, specifically companion robots in hospital-like indoor spaces. The system integrates user inputs with algorithmic semi-autonomous control …

Boring But Demanding: Using Secondary Tasks To Counter The Driver Vigilance Decrement For Partially Automated Driving, Scott Mishler, Jing Chen

Psychology Faculty Publications

Objective

We investigated secondary–task–based countermeasures to the vigilance decrement during a simulated partially automated driving (PAD) task, with the goal of understanding the underlying mechanism of the vigilance decrement and maintaining driver vigilance in PAD.

Background

Partial driving automation requires a human driver to monitor the roadway, but humans are notoriously bad at monitoring tasks over long periods of time, demonstrating the vigilance decrement in such tasks. The overload explanations of the vigilance decrement predict the decrement to be worse with added secondary tasks due to increased task demands and depleted attentional resources, whereas the underload explanations predict the vigilance …

In The Doha International Airport, A Forest, Paulina Bianca Ocampo

Green Humanities: A Journal of Ecological Thought in Literature, Philosophy & the Arts

In the Doha International Airport, a forest calls is a poem about a culture of deep ecology in a context of coloniality, brain drain, and my own part in it. Despite over 300 years of colonization in the Philippines and the colonization of our own education system, a certain deep ecology continues to thrive in the belief of spirits in nature. Among Filipinos, even in the thick of the Anthropocene, a sense of respect and fear for nature continues to exist. It is common, for example, for Filipinos to ask these spirits for permission to pass through forested areas. However, …

Imaginative Acts, Environmental Futurity: Re-Envisioning The Heroic White Male Savior In Snowpiercer, Michelle Yates

Green Humanities: A Journal of Ecological Thought in Literature, Philosophy & the Arts

In contrast to many Hollywood climate fiction films, Snowpiercer (2013) offers a more complex representation of the white male savior. In contrast to films like WALL-E (2008) and Interstellar (2014) that recuperate and invest in white masculine privilege, Snowpiercer highlights the more destructive aspects of a patriarchal capitalist system that privileges hegemonic white masculinity. While the ending of Snowpiercer may seem bleak, it also points to the possibility of a new system, an environmental futurity that centers indigenous knowledge and the experiences of women and people of color. Though Snowpiercer is not formally an American film, its casting of recognizable …

Diverse Voices, Sticky Maps And Wicked Patterns. Using Creative Methods To Explore Environmental Justice, Clare Saunders, Daksha Patel

Green Humanities: A Journal of Ecological Thought in Literature, Philosophy & the Arts

Environmental justice is multi-faceted. It is distributional, procedural and context inter-dependent. Achieving environmental justice therefore requires transdisciplinary thinking and collaborative practice with participants holding a variety of experiences and knowledges. This paper explores the different meanings of environmental justice in theory, and through artistic practices. It introduces and evaluates a series of creative workshops designed to enhance understanding of environmental justice. The workshops consisted of 1) image-informed co-created cross-national Zoom conversations; 2) using colours and shapes to tease out meanings of environmental justice; and 3) mapping local environmental injustices while centring more-than-humans. It proposes that these creative methods are useful …

College Of Health Sciences Newsletter, College Of Health Sciences, Old Dominion University

Ellmer College of Health Sciences Newsletters

May 2024 issue of Old Dominion University's College of Health Sciences Newsletter.

A Design Science Approach To Investigating Decentralized Identity Technology, Janelle Krupicka

Cybersecurity Undergraduate Research Showcase

The internet needs secure forms of identity authentication to function properly, but identity authentication is not a core part of the internet’s architecture. Instead, approaches to identity verification vary, often using centralized stores of identity information that are targets of cyber attacks. Decentralized identity is a secure way to manage identity online that puts users’ identities in their own hands and that has the potential to become a core part of cybersecurity. However, decentralized identity technology is new and continually evolving, which makes implementing this technology in an organizational setting challenging. This paper suggests that, in the future, decentralized identity …

The Vulnerabilities Of Artificial Intelligence Models And Potential Defenses, Felix Iov

Cybersecurity Undergraduate Research Showcase

The rapid integration of artificial intelligence (AI) into various commercial products has raised concerns about the security risks posed by adversarial attacks. These attacks manipulate input data to disrupt the functioning of AI models, potentially leading to severe consequences such as self-driving car crashes, financial losses, or data breaches. We will explore neural networks, their weaknesses, and potential defenses. We will discuss adversarial attacks including data poisoning, backdoor attacks, evasion attacks, and prompt injection. Then, we will explore defense strategies such as data protection, input sanitization, and adversarial training. By understanding how adversarial attacks work and the defenses against them, …

Predictive Ai Applications For Sar Cases In The Us Coast Guard, Joshua Nelson

Cybersecurity Undergraduate Research Showcase

This paper explores the potential integration of predictive analytics AI into the United States Coast Guard's (USCG) Search and Rescue Optimal Planning System (SAROPS) for deep sea and nearshore search and rescue (SAR) operations. It begins by elucidating the concept of predictive analytics AI and its relevance in military applications, particularly in enhancing SAR procedures. The current state of SAROPS and its challenges, including complexity and accuracy issues, are outlined. By integrating predictive analytics AI into SAROPS, the paper argues for streamlined operations, reduced training burdens, and improved accuracy in locating drowning personnel. Drawing on insights from military AI applications …

Profiling Cybercriminals: Behavioral Analysis And Motivations Behind Cybercrime Activities, A'Shya Latrice Reynolds

Cybersecurity Undergraduate Research Showcase

The study of cybercriminal behavior and motivations is crucial for understanding and combating the evolving landscape of digital crime. This paper delves into the intricate realm of cybercrime profiling, employing a multidisciplinary approach to dissect the behavioral patterns and underlying motivations of cybercriminals. Drawing from psychology, sociology, and criminology, the research examines the intricate interplay of individual traits, social dynamics, and technological factors that shape cybercriminal activities.

Through analysis of case studies and research, this paper uncovers the diverse range of motivations driving individuals towards engaging in cybercrime. From financial gain and ideological extremism to thrill-seeking and revenge, cybercriminals exhibit …

A Case Study Of The Crashoverride Malware, Its Effects And Possible Countermeasures, Samuel Rector

Cybersecurity Undergraduate Research Showcase

CRASHOVERRIDE is a modular malware tailor-made for electric grid Industrial Control System (ICS) equipment and was deployed by a group named ELECTRUM in a Ukrainian substation. The malware would launch a protocol exploit to flip breakers and would then wipe the system of ICS files. Finally, it would execute a Denial Of Service (DOS) attack on protective relays. In effect, months of damage and thousands out of power. However, due to oversights the malware only caused a brief power outage. Though the implications of the malware are cause for researching and implementing countermeasures against others to come. The CISA recommends …

Chapter 10: Increasing Accessibility In Educational Simulations, Meaghan Mcleod

Instructional Message Design, Volume 3

Simulations are an important aspect of education and training. They provide the learner with situations that mirror real life situations or provide access to unobservable phenomena. The simulations provide the learner with a unique opportunity to master skills through the use of and practice in a safe environment. However, many simulations are not designed with accessibility and accommodations in mind. This chapter provides a general overview of simulations and provides suggestions on how to increase accessibility and enhance the learning experience for all learners.

Monarch Science Observer, Volume 18, College Of Sciences, Old Dominion University

College of Sciences Newsletter

Spring 2024, issue of Monarch Science Observer, ODU Colleges of Sciences Newsletter.

Chapter 04: Cultural Sensitivity, Inclusion, And Social Presence In Instructional Message Design, Cheryl Cook-Posley

Instructional Message Design, Volume 3

It is critical for Instructional Designers (IDs) and Human Performance Technologists (HPTs) to consider the backgrounds of the learner to help them plan, develop, and design relevant and appropriate content for the audience of focus. The interests, assets, and needs of the learner must be researched and studied so the designer is able to fully know, empathize, understand, and design. Applying an audience centric approach equips designers to design culturally inclusive and sensitive instructional messages, as well as content that aligns with, are responsive to, and are respectful of diverse groups. In this way, IDs and HPTs can be able …

Chapter 08: Add Depth To Your Message - The Use Of 3d Printing In Instructional Message Design, Jennifer Tolley

Instructional Message Design, Volume 3

3D printing is an emerging technology used for the creation of physical objects. While it does not seem like a tool for instructional message design, 3D printing facilitates the development of many skills, such as creativity, critical thinking, and problem solving, as well as the development of content knowledge. It allows students to design and create real objects, or for teachers to show recreations of items from history. Tools, such as math manipulatives, can be designed and printed to help students learn abstract concepts. This chapter aims to provide a conceptual framework for 3D printing integration into instructional message design, …

Chapter 03: Message Design For Instructional Designers – Audio And Video Best Practices, Shelby Taylor

Instructional Message Design, Volume 3

Instructional message design is the way that information is delivered to users or the learners. Learners have short-term and long-term memory. Cognitive load theory and multimedia learning theory are two theories that can be applied to best practices in audio and video. Audio and video can range from speeches, podcasts, DVDs, and streaming videos. Both can enhance learning but should not drive the instruction. Segmenting video and audio is one of the many best practices as it allows learners to chunk the information and process it in small bits. There are learners who have auditory and visual deficits and instructional …

Chapter 01: Message Design For Instructional Designers - An Introduction, Miguel Ramlatchan

Instructional Message Design, Volume 3

Instructional message design is the use of learning theories to effectively communicate information using technology. Design is guided by theories including gestalt, cognitive load, multimedia learning, media selection, media attributes, and general communication systems. Our communication designs can be based on a wide variety of technologies or a combination of technologies. Technology in the form of tools and techniques includes, among others, the study and the use of typography, color, illustrations, photographs, modeled graphics, augmented reality, animation, video, video games, simulations, and virtual reality. This introduction serves as a brief overview of these theories, tools, and techniques, while subsequent chapters …

Monarch, Philip Walzer (Editor)

Monarch Magazine

Spring 2024 issue of Monarch, the Old Dominion University Magazine.

Subtitled: Distinguished Alumnae Leading the Way

Reflections About The Academy And Its Centennial, Marco Aldi, Woodward S. Bousquet

Virginia Journal of Science

Brief reflective essays from members of the Virginia Academy of Science were solicited as part of the Academy's centennial commemoration in 2023. The essays received demonstrate the many and varied ways in which the Academy has fostered collegiality, encouraged research, supported science education, and shaped the course of science in Virginia during the organization's 100-year history.