Digital Commons Network^™

Edison Elliot And The Midas Files, Brianne Hankes

Masters Theses

No abstract provided.

High Prevalence Of Trypanosoma Cruzi Infection In Raccoons (Procyon Lotor) And Associated Risk To Humans In Central Illinois, Esther Onuselogu

Masters Theses

Chagas disease, caused by the protozoan parasite Trypanosoma cruzi, remains a neglected tropical disease and a growing health threat in the United States. Raccoons (Procyon lotor) often coexist with humans in urban and suburban areas and serve as reservoir hosts for T. cruzi. While T. cruzi is rare in humans and domestic animals in the U.S., it is common in wildlife species, particularly raccoons and Virginia opossums (Didelphis virginiana). This study aimed to assess the prevalence of T. cruzi infection in the raccoon population of Central Illinois and evaluate the risk of transmission to humans. …

Social Policy Responses To Rising Inflation In Canada And The United States, Daniel Béland, Shannon Dinan, Philip Rocco, Alex Waddan

Political Science Faculty Research and Publications

Social policies’ responsiveness to rising inflation depends in large part on whether they contain automatic indexation mechanisms, which ensure that the real value of wages and benefits expands during inflationary periods. Here we compare how the indexation of Canadian and U.S. policies on pensions, minimum wages, and food security have affected their responsiveness to the recent cost-of-living crisis. Three main conclusions emerge from our analysis. First, automatic indexation is not necessarily a silver bullet to avoid policy drift. Second, automatic indexation and its design are not the only factors that matter to determine whether high inflation leads to policy drift. …

The Line: Ai And The Future Of Personhood, James Boyle

Faculty Books

The line that distinguishes people from animals, systems, and things is getting harder to draw. For all the concern about AI and genetic engineering, there has been surprisingly little discussion of the possible personhood of the new entities this century will bring us: what about their claims to be inside the line, to be "us" -- not machines or animals but persons -- deserving all the moral and legal respect that any other person has by virtue of their status?

Full Circle, Jordan Vigil

School of Art Graduate Exhibitions, Portfolios, and Theses

No abstract provided.

Variability In Perceptions Of Complementary Health Approaches Among Graduate Student Trainees, Delaney C. Bilodeau

Theses and Dissertations

Complementary Health Approaches (CHAs) encompass a diverse range of practices which are often used both independently and alongside conventional medical treatments. Understanding how graduate students training in different fields perceive CHAs is important because these professional trainees will go on to occupy roles as healthcare practitioners, researchers, policy makers, and consumers. This study used sequential rank agreement methods (Ekstrøm, Gerds, & Jensen, 2019) to investigate variations in perceptions of CHAs in a sample of graduate students (N = 416) from 140 possible training programs. Ratings of CHA familiarity, perceptions of CHA legitimacy, and willingness to recommend CHAs were compared …

Exploring Factors Influencing The Adoption Of Ai Tools In Auditing: A Mixed-Methods Study, Fahad Alsudairi

Theses and Dissertations

Artificial Intelligence's (AI) rise has created value for organizations and society, prompting scholars to study its spread across many areas. However, the impact of AI adoption on governmental organizations still needs to be explored. Governmental entities face unique challenges distinct from private organizations, and existing research often focuses on the perspectives of AI experts or senior management, neglecting the insights of lower-level employees who will use the system daily.

This study investigates the multifaceted factors influencing the intention to adopt AI tools within a governmental auditing bureau in Saudi Arabia. To the best of our knowledge, no previous study has …

Investigation Of Brain Function And Structural Development As Risk Factors Of Suicidal Thoughts And Behaviors, Yi Zhou

Theses and Dissertations

Background: Identifying risk factors for suicidal thoughts and behaviors, especially causal ones, will be imperative to improving screening and treatment interventions. To identify replicable brain-based risk factors, there is increasing evidence indicating the need for large sample sizes, in the hundreds to thousands, in order to achieve a sufficient level of statistical power to detect them. Furthermore, longitudinal studies of brain and behavioral factors will be essential to understanding how suicide develops, especially the transition from suicide ideation to attempt. While experimental studies may not be feasible or ethical, genetically informed methods for testing evidence for causation are an alternative …

Stealthy Control Logic Attacks And Defense In Industrial Control Systems, Adeen Ayub

Theses and Dissertations

Industrial control systems (ICS) play a crucial role in monitoring and managing critical infrastructure, including nuclear plants, oil and gas pipelines, and power grid stations. Programmable logic controllers (PLCs) are a fundamental component of ICS, directly interfacing with physical processes and implementing control logic programs that govern operations. Due to their significance in controlling critical infrastructure, PLCs often become prime targets for attackers seeking to disrupt these systems. Exploitable vulnerabilities in PLCs render them susceptible to such attacks. While many attacks on PLCs leave a large footprint in network traffic and are detectable by intrusion detection systems (IDS), this dissertation …

Autophonia: A Memoir In Essays, Amy Blanchard

Masters Theses

No abstract provided.

Transitions In Patterns Of Substance Use During Early Adolescence: Bidirectional Associations With Externalizing Behaviors, Courtney B. Dunn

Theses and Dissertations

Early adolescents who engage in polysubstance use, defined as the use of three or more different substances, are at particularly high risk of future substance use disorders and adverse psychosocial outcomes. However, little is known about the development of substance use patterns during early adolescence, particularly among youth living in urban settings. Although theory and research suggest that youth with greater externalizing behaviors (e.g., aggression, delinquent behavior) may be more likely to escalate to polysubstance use at an early age, few studies have examined bidirectional relations between externalizing symptoms and polysubstance use. The goal of this study was to (a) …

Supported Metal Nanoparticle Synthesis: Precursor Deposition And Agglomeration At Support Surfaces, Edward H. Chandler Jr.

Theses and Dissertations

Catalysis is a critical component of the chemical manufacturing industry. For example, it has been estimated to be essential to more than 90% of the major industrial processes developed during the middle years of the 20^th century.¹ Heterogeneously supported transition metal catalysts in particular have many benefits such as easy separability from the reaction mixture and high thermal stability. One method of synthesizing these is wet impregnation, wherein a metal solution is brought into contact with an oxide- or carbon-based powder. Given optimal environmental conditions, a metal will adhere to the surface through electrostatic means in a process …

Functional Family Therapy: A Multi-Year Statewide Program Evaluation, Natalie Finn

Theses and Dissertations

Functional Family Therapy (FFT) is a family-based treatment program for youth with externalizing behavior problems, often involved in juvenile justice and child welfare systems. FFT is an evidence-based program and has been implemented across many states, including the state of Virginia. Objective. The present study performed a program evaluation and observational study of the implementation and sustainment of FFT in Virginia, during the first five years of implementation. Method. Participants included all youth who participated in FFT in Virginia between October 2017 and June 2022. Secondary data analysis was conducted using data entered by therapists and supervisors into the FFT …

Benchmarking And Enhancing Generalization In Multilingual Speech Emotion Recognition, Mohamed Osman Ismael

Theses and Dissertations

Speech Emotion Recognition (SER) is pivotal in advancing human-computer interaction by enabling machines to understand and respond to human emotions. Despite significant progress with self-supervised learning models, SER systems often struggle with generalization across diverse languages and unseen data distributions, limiting their real-world applicability. This thesis addresses these challenges by first introducing a large-scale benchmark to evaluate the robustness and adaptability of state-of-the-art SER models in both in-domain and out-of-domain settings. The benchmark includes a diverse set of multilingual datasets, emphasizing cross-lingual and out-of-domain evaluations to assess model generalization. Surprisingly, we find that the Whisper model, originally designed for automatic …

Transforming Accounting: Robotic Process Automation In The Accounting Environment, Leah Hall

Theses and Dissertations

Over the years, I have worked with many companies that run legacy accounting and operation systems that do not integrate. With the introduction of RPA, it provides these companies with the ability to integrate without the need for customization. This dissertation is my personal pursuit of understanding the risks associated with implementing RPA and identifying specific areas where organizations may face challenges. I accomplish this objective through three papers: a literature review, a survey, and an experiment. The literature review synthesizes RPA literature, organizing it by implementation state. The survey paper provides an analysis of how internal auditors rate particular …

“You Are Not Obligated To Complete The Work, But Neither Are You Free To Desist From It.” Richmond Jews In Social Activism Post Civil Rights, Tracy S. Herman

Theses and Dissertations

For centuries, the Jewish people have faced expulsions, pogroms, massacres, and Propaganda. that runs so deep it would be like staring into an abyss. This oppression has motivated Jewish activists worldwide to fight back not only on behalf of the Jewish community but for many areas of perceived need. Jewish involvement in social activism in the U.S. has been particularly recognized by scholars of the labor and Civil Rights movements. This thesis is based on eighteen oral history interviews focused on social activism in Richmond, Virginia since the Civil Rights era. The author conducted these interviews in 2021, 2023, and …

The Effect Of Local Anesthesia When Used In Dental Restorative Cases Under General Anesthesia On Control Of Postoperative Comfort, Elizabeth S. Kleefisch Dds

Theses and Dissertations

Purpose:

To determine the effect of local anesthesia on postoperative comfort in patients undergoing dental care under general anesthesia.

Methods:

This study was modeled as a double-blinded randomized control trial. Patients included healthy children under the age of 6 years scheduled for restorative dental treatment under general anesthesia (GA). Patient behavior was evaluated preoperatively and postoperatively using the Faces, Legs, Activity, Cry and Consolability (FLACC) or other pain score and postoperatively using the Parent’s Postoperative Pain Measure (PPPM). Intraoperatively, participants followed a standardized general anesthesia protocol and were given either local anesthetic (LA) infiltration using 2% Lidocaine 1:100,000 Epinephrine by …

Developing And Testing A Model Of Discrimination, Internalized Oppression, Mental Health, And Suicidality In Disabled Transgender And Gender Non-Binary (Tgnb) Individuals, Stephanie L. Cull

Theses and Dissertations

Transgender and gender nonbinary (TGNB) individuals experience high rates of discrimination and microaggressions that can lead to internalized cisgenderism and adverse mental health outcomes such as depression, anxiety, and suicidality. Individuals with disabilities similarly experience high rates of discrimination and microaggressions that can lead to internalized ableism and increased adverse mental health outcomes. Although both of these populations have been researched separately, very little extant research has explored the intersections of disabled and TGNB identities. The purpose of this study was to explore a hypothesized pathway leading from microaggressions through internalized oppression and mental health to suicidal ideation within a …

An Examination Of Hiring Practices And Employee Retention Today Compared With Pre-Pandemic Characteristics In Orthodontics, Logan Passey

Theses and Dissertations

Purpose: Evaluate current hiring practices and employee retention characteristics in orthodontic private practices.

Methods: Orthodontists (n=1000) were surveyed regarding their hiring methods and outcomes. Responses were summarized with descriptive statistics. Chi-square tests were used to compare hiring practices and perceptions. Nonparametric Kruskal-Wallis tests were utilized in analysis of retention thresholds.

Results: Survey response rate was 7.2% (72 responses). When comparing thresholds previous to, and after the COVID-19 pandemic, there was an increase in open clinical positions compared with non-clinical and managerial positions (p=.0008). 68% of orthodontists reported a decrease in qualified applications for clinical positions compared with non-clinical and managerial …

A Retrospective Chart Review Of Avulsion Injuries Treated At Virginia Commonwealth University., Ryan Hediger

Theses and Dissertations

A RETROSPECTIVE CHART REVIEW OF AVULSION INJURIES TREATED AT VIRGINIA COMMONWEALTH UNIVERSITY. By: Ryan Hediger, DMD

Objective: Outcomes related to healing following an avulsion injury are multifactorial. However, contemporary literature suggests that tooth survival can be enhanced after such injuries by promptly replanting the tooth and adhering to proper management guidelines. Despite the abundance of resources available, the actions taken immediately after the avulsion injury play a pivotal role in determining the fate of an avulsed tooth. The primary objective of the current investigation is to unveil prognostic factors associated with the survival of avulsed teeth.

Methods: A chart review …

Housing For Transgender And Gender Expansive People In The U.S. South, Aaron M. Kemmerer

Theses and Dissertations

Housing is a prominent issue for transgender and gender expansive (TGE) people around the world. There is a dearth of research about TGE people experiencing homelessness (TGE PEH) in the U.S. South. This dissertation aims to amplify the voices of TGE Southerners around the social concerns of housing and homelessness – this work also disrupts gendered and racialized narratives about housing injustice, exposing the salience of intersectional discrimination and cisgenderism in housing outcomes for TGE people. Using narrative and visual methods, this dissertation re-presents stories and recommendations from in-depth interview data collected from a small qualitative sample of Southern TGE …

A Critical Perspective On Supporting Parents In Facilitating Informal Steam Learning On Children's Early Literacy Development, Suzanne G. Alexandre

Theses and Dissertations

Considering that parents/caregivers and home environment play an influential role in a child’s school readiness and future academic success, this study sought to support parents in using facilitation strategies to engage their child in informal learning at home. In order to examine if access to support for parents of preschoolers influenced parents’ confidence in their ability to facilitate informal learning at home, the project used informal STEAM learning, for context. The study also examines the potential impact of informal STEAM learning on children's school readiness and early literacy skills and the intersections of parent involvement, STEAM, and school readiness through …

Exploring Drivers Of Sex-Based Disparities In Relapsing Multiple Sclerosis, Stephanie K. Buxhoeveden

Theses and Dissertations

Females are three times more susceptible to relapsing multiple sclerosis (MS) and males typically have more severe disease, but the molecular underpinnings of these sex-based disease disparities are unknown and represent a critical knowledge gap.Subject Population: Blood samples from a demographically homogenous group of treatment naïve males and females with relapsing-MS and healthy controls. Research Design: Cross-sectional combinatorial omics pilot study. Instruments: Whole transcriptomic analysis with messenger RNA (mRNA) expression profiling using next generation sequencing (RNA-seq) and micro-RNA (miRNA) expression using NanoString technology. Aim 1) Identify and compare the actively expressed mRNAs in the transcriptome of males and …

Investigating The Regulation Of Epithelial-Mesenchymal Transition Through Fibronectin-Mediated Tgf-Β1 Mechanotransduction Using In Vitro Models Of Triple-Negative Breast Cancer, Michael M. Sofroniou

Theses and Dissertations

TGF-β1 is a potent regulator of epithelial-mesenchymal transtion (EMT), a cellular
transdifferentation process that promotes cellular motility and matrix remodeling, critical to tumorigenesis and metastasis. TGF-β1-induced EMT promotes the assembly of FN, which synergistically binds latent TGF-β1 to aid in its activation. The purpose of of this work is to further probe the effects of autocrine TGF-β1 signaling during EMT progression by utilizing CRISPR-Cas9 deletion of the TGFB1 gene in in vitro models of triple-negative breast cancer. The studies outlined in this work demonstrate that autocrine TGF-β1 maintains a baseline level of mesenchymal marker expression. It also functions to desensitize …

Notes On A Centrifugal Chiller: Listening And Breathing The Boundaries Of Circulatory Architecture, Chrystine Rayburn

Theses and Dissertations

"Notes on a Chiller" unfolds as a series of site responsive and performative exercises that activate, modulate, and translate the immense voice of Virginia Commonwealth University’s Siegel Center water-cooled chiller, a climate control system that regulates the atmosphere of the university’s sports arena. Using individual and collective listening and sound-making practices to harness the building’s noisy system, the piece culminates in a multi-channel, audio-visual installation and performance that explores the multi-sensory exchange and entanglement of listening, breathing, and moving with a building’s circulatory system.

Biophilia: Developing A Taste For Care, Che'leah Shannon

Theses and Dissertations

People in materially developed cultures spend over 90% of their lives in buildings (Evans & McCoy, 1998). Commencing with the industrial revolution these materially developed cultures see most of their populus moving from the countryside to the city in search of work and better lives. The city, an urban and modern development of densely packed peoples, buildings, and infrastructure, has developed as an efficient solution to meet the needs of a cosmopolis.

The city has developed widely without a necessity or place for nature. The ground outside is paved with concrete, efficient and comfortable for travel, buildings are built high …

Learning Curve: Designing An Inclusive Early Childhood Learning Center, Sarah Alrumayh

Theses and Dissertations

This research centers on the improvement of early childhood education environments in hopes to reduce the disparities in outcomes among children aged 2-6, widely known as "the achievement gap." It sheds light on designing an inclusive, child-centered school for students with specific learning disabilities (SLD) and speech or language impairments (SLI). Drawing on the IDEA (Individuals with Disabilities Education Act), it underscores the benefits of integrating students with special education needs into mainstream education, thereby fostering inclusive learning environments. (IDEA, 1975).

The research question probes how to create a nurturing and adaptable school environment tailored to the diverse needs of …

Exploring The Experiences Of Faculty Learning To Teach Online: A Case Study, Peyton P. Burgess Jr

Theses and Dissertations

Through an examination of literature, interviews and focus groups with participants of a faculty development program on online teaching and learning at a large Public Mid-Atlantic Urban University (PMUU), this research aimed to uncover the elements of a faculty development course or other impacts that contributed to the success or hindrance of faculty in their online course delivery. This qualitative study aimed to foster collaborative relationships with participants and resulted in data that might inform the development of faculty and their online courses in similarly situated contexts.

Elucidation Of The Optical Properties Of Si And Si-Ge Alloy Nanostructures With Visible To Near-Ir Photoluminescence, Griffin Spence

Theses and Dissertations

Silicon and silicon-germanium alloy nanostructures have garnered increasing attention in the past 25 years due to their favorable optical properties, visible to near-IR luminescence, and inherently low toxicity. While many synthetic routes have been discussed in the literature, the high-temperature, solid-state disproportionation of hydrogen silsesquioxane (HSQ) has become the most popular way to produce highly crystalline, size-tunable Si and Si-based nanostructures (NCs). It has been shown in this work that maximum annealing temperature from 450°-1100°C and the addition of GeI₂or SnCl₄ precursors can be used to achieve different morphologies, alloying efficiency, and sizes. Directly annealing HSQ from …

Nano-Patterned Si Structures For Optical Filters And Electro-Mechanical Relays: Fabrication, Characterization, Prospects, And Limitations, Md Ataul Mamun

Theses and Dissertations

Nanofabrication technology, especially nanopatterning, is a rapidly advancing field that has already resulted in creating novel devices and holds promise for producing even more with unmatched performance. These techniques also allow us to gain insight into physical phenomena at the micro- and nanoscale. The ultimate performance of nanofabricated devices and their compatibility with existing Si-based CMOS technology hinge upon the careful selection of materials and precise design, coordinated with meticulous pattern transfer. In this work, we applied nanopatterning techniques on silicon to create optical filters for the shortwave infrared (SWIR) region and nanoelectromechanical system (NEMS) relay-based logic gates. Additionally, these …