The rapid rise of shared electric scooter (E-Scooter) systems offers many urban areas a new micro-mobility solution. The portable and flexible characteristics have made E-Scooters a competitive mode for short-distance trips. Compared to other modes such as bikes, E-Scooters allow riders to freely ride on different facilities such as streets, sidewalks, and bike lanes. However, sharing lanes with vehicles and other users tends to cause safety issues for riding E-Scooters. Conventional methods are often not...

Low molecular weight gelators (LMWGs) are small molecules that self-assemble in appropriate solvents to form three dimensional networks that immobilize the solvent, creating a supramolecular gel. The self-assembly of LMWGs occurs through non-covalent interactions such as hydrogen bonding, aromatic interactions, donor-acceptor interactions, Van der Waals interactions, hydrophobic forces, halogen bonding, etc. Due to self-assembly occurring through reversible non-covalent interactions, supramolecular gels can undergo a gel to solution transformation. Because of this, these materials can be...

The Virginia Department of Corrections (VADOC) is responsible for about 28,000 inmates and 66,000 probationers and parolees annually. Mental health services are often conducted through therapeutic groups, many of which are manualized and based in cognitive behavioral therapy theory. In the three years, 2017 through 2019, VADOC conducted 172 therapeutic group therapy studies, and the resulting data, in the form of t-test scores, were made available for academic research. This meta-analysis investigated whether cognitive behavioral...

Major advances have been made in cancer immunotherapy. One example is checkpoint blockade immunotherapy which has been approved by FDA to treat numerous cancer types resulting in a substantial increase in the number of lives saved. However, two major hurdles; low response rates, especially to poorly immunogenic cancers and immune-related adverse events (irAEs), limit its broader applications. Differently, a number of tumor ablation modalities have been studied to improve antitumor immunity, nevertheless, low potency is...

It is widely accepted that plasma membrane permeabilization after PEF occurs due to hydrophilic pores formation in the lipid bilayer. The concept of pore formation is confirmed by molecular dynamics (MD) simulations. However, there is increasing evidence that PEF can cause not only hydrophilic pore formation but also modulate membrane proteins and their function, and these changes could be part of increased membrane’s permeability after PEF. Ion channels, especially voltage-gated ion channels, are probable targets...

Deoxyribonucleic acid, more commonly known as DNA, is a complex double helix-shaped molecule present in all living organisms and hosts thousands of genes. However, only a few genes exhibit differential expression and play a vital role in a particular disease such as breast cancer. Microarray technology is one of the modern technologies developed to study these gene expressions. There are two major microarray technologies available for expression analysis: Spotted cDNA array and oligonucleotide array. The...

TikTok, a video sharing application, has become the center of viral internet culture. The app has risen in popularity so quickly that scholarly literature investigating its vast societal impact is still nascent. TikTok is not only used to discuss popular culture topics and create trends, but also being utilized as a tool for social justice activism in the United States in the wake of a tumultuous year with major events such as the coronavirus pandemic,...

Tropical coral reefs are one of the most impressive and diverse ecosystems on the face of the earth. Found in warm, tropical waters around the globe, these reefs are major supporters of the immense biodiversity of the area. The health of coral reefs is highly influential on the overall health of the entire ecosystem. In recent years, intensifying climate change has resulted in an accelerated rise in seawater temperatures and the frequency and severity of...

Within public education, it has been shown that there is a disproportionate rate of discipline between Black and White students. A literature review was conducted to identify prevailing themes as to why this gap occurs, what factors maintain it, and what can educators do to reduce it. Several themes were found and are detailed in this paper in the following order: First, several studies have debunked the previously held idea that low socioeconomic status and...

Proceedings of the 5th Annual Modeling, Simulation & Visualization Student Capstone Conference held on April 14, 2011 at VMASC in Suffolk, Virginia. 186 pp.

When space programs launch vehicles into orbit, multiple failures could arise throughout the mission and corrective actions are often not an option. Applying reliability engineering approaches during the design phase focuses on analyzing risk by anticipating potential failures and mitigating uncertainties in the design. Old Dominion University, in partnership with the U.S. Coast Guard Academy, and the U.S. Air Force Institute of Technology designed and developed a 3U CubeSat mission to validate on-orbit, three space...

The Virginia Modeling, Analysis and Simulation Center (VMASC) of Old Dominion University hosted the 2015 Modeling, Simulation, & Visualization Student capstone Conference on April 16th. The Capstone Conference features students in Modeling and Simulation, undergraduates and graduate degree programs, and fields from many colleges and/or universities. Students present their research to an audience of fellow students, faculty, judges, and other distinguished guests. For the students, these presentations afford them the opportunity to impart their innovative...

Proceedings of the 7th Annual Modeling, Simulation & Visualization Student Capstone Conference held on April 11, 2013 at VMASC in Suffolk, Virginia.

Cannabis and alcohol use are pervasive among college students. Simultaneous alcohol and cannabis (commonly referred to as simultaneous alcohol and marijuana [SAM]) use (i.e., effects overlap) is more prevalent than concurrent alcohol and cannabis (commonly referred to as concurrent alcohol and marijuana [CAM]) use (i.e., effects do not overlap). Consequences of SAM use are often greater than CAM or single substance use. Research has explored cognitions (motives, expectancies) and contexts (environmental, social) as predictors of...

Since 1958, government agencies have used Other Transactions (OT) to encourage innovation and the development of new technology. OTs' purpose is to help government agencies acquire leading-edge technology from private sector sources in a flexible, goal-oriented manner. This dissertation is a pilot study assessing whether innovation policies, specifically 10 USC 2371b (Pub. L. No. 114-92, 2015) that authorizes DoD prototype OTs, influence the Department of Defense (DoD) alternative contracting activities to promote the development of...

Students with Learning disabilities and at risk for reading difficulties often face challenges in reading fluency and comprehension that impact negatively on academic success. Repeated reading (RR) is an intervention designed to increase reading fluency and comprehension skills among students at risk and diagnosed with disabilities. The purpose of this review was to investigate the effectiveness of the repeated reading (RR) and vocabulary previewing (VP) interventions on the fluency and comprehension skills of elementary school...

The burden of falls is widely known in older adults, though less research has targeted middle-aged adults (40-64 years of age), particularly at the population level. The purpose of this dissertation was to explore the roles of cardiovascular disease, physical activity (PA) intensity, and body anthropometrics on balance among middle-aged adults. Study 1 sought to determine if balance was impaired in middle-aged adults with poor ankle-brachial pressure index (ABPI), a marker of cardiovascular disease. Study...

Public and scholarly interest in the concept of work as a calling has grown considerably over the past few decades (Thompson & Bunderson, 2019). Much of this research has focused on the positive outcomes of calling, including increased work engagement (e.g., Dobrow Riza et al., 2019) and job performance (e.g., Park et al., 2016). However, a few studies have focused on the negative outcomes of calling, such as limited psychological detachment from work (Clinton et...

Decades after the landmark United States Supreme Court decision of Brown v. The Board of Education of Topeka in 1954, the push continues to make schools a safe and welcoming environment for Black and Brown students. Black students in particular are continuing to be oppressed and marginalized in PK-12 educational settings. Accounting for approximately 15% of public PK-12 students, Black students comprise 13.7% of all students who receive out-of-school suspensions in 2017, are 16% of...

The purpose of the study was to determine what initial attitudes and behaviors first-year college students had about the environment and how they changed as a result of a taking a required global environmentalism course. A second goal in this study was to learn whether there were differences in environmental attitudes and behaviors based on gender and ethnicity. Participants in this study were first-year students at Old Dominion University enrolled in a mandatory general education...

School counselors are trained in providing academic, career, and social/emotional support to K-12 students. In March 2020, the Covid-19 pandemic took the world of K-12 education by surprise, forcing school counselors to deliver a virtual school counseling program with little to no time for preparation. School counselors were faced with meeting the seemingly ever-changing needs of K-12 students as social, political, and health concerns evolved throughout the pandemic. Although schools have since begun to reopen...

The purpose of this study was to examine the preliminary feasibility of an online, manualized, group-based, multi-component, cognitive behavioral therapy (CBT) treatment approach for the reduction of caregiver burden among family caregivers of persons with dementia. This study had five primary hypotheses: (1) the recruitment plan, as outlined within this study, would yield the target number of participants within a 12-month period; (2) the proposed group therapy protocol would produce a positive therapeutic climate, as...

The development of metallic coatings with high purity and high thermal conductivity at cryogenic temperature could be very important for application to the superconducting radiofrequency (SRF) cavity technology. The deposition of such bulk coatings on the outer surface of a niobium cavity could result in higher heat conductance and mechanical stiffness, both of which are crucial for enhancing the cavity performance at a reduced cost. Cold spray technology was used to deposit bulk coatings of...

Wind tunnels are used to study forces and moments acting on an aerodynamic body. While most results involve some interference from the mechanical supports used to hold the model, a Magnetic Suspension and Balance System (MSBS) is void of these interferences and presents an ideal test scenario. To further investigate the feasibility of dynamic stability testing at supersonic speeds using a MSBS, a preliminary design idea is currently being developed using an existing MSBS in...

Counselor education researchers have explored the need for high levels of cognitive complexity (CC) in mental health counselors due to its relationship with high quality counseling skills and counselor ways of being (e.g., Castillo, 2018; McAuliffe & Lovell, 2006; Ridley et al., 2011; Welfare & Borders, 2010b). In these studies, researchers have called for continued study of means of enhancing CC in counselors in training (CITs) through andragogical efforts (e.g., Castillo, 2018; Duys & Hedstrom,...