Digital Commons Network^™

Diversity Equity And Inclusion Education: An Evaluation Of The Safe Zone Allies Program, Shannon E. Hart

Graduate Theses and Dissertations

Diversity, Equity, and Inclusion gained unprecedented popularity from 2019 to 2022. The tide turned in 2023, and Anti-DEI legislation continues to gain momentum nationwide. This backlash may be warranted, as research demonstrates that DEI can backfire. DEI programs remain unregulated, understudied, and often paradoxically under-supported despite their potential to catalyze positive social change. Two studies were conducted to begin creating standardized, accessible, and evidence-based DEI best practices. Safe Zone Allies, a LGBTQIA+ specific DEI program was selected for program review because; (a) it was not developed hastily, (b) it was not siloed, and (c) the curriculum is evidence-based. The first …

What Is A Person? How Does One Become A Morally Good Person? The Intuitive View!, Tancredo Tivane

Graduate Theses and Dissertations

This thesis centers around two philosophical problems: the concept of a person and the process by which one becomes a morally good person. Drawing on the works of philosophers such as Harry Frankfurt, Strawson, and A.J. Ayer, it begins with an inquiry into what it means to be a person. It argues that while humanhood, with its rational capacities, is a contingent rather than a necessary condition, it can serve as an accurate predictor of personhood. The thesis posits that personhood is an achievement rather than an inherent state, facilitated by interactions within a social framework that refine these rational …

Investigating The Detection And Transport Of Low Molecular Weight Species To Better Understand Their Impact On Disease Pathology And Treatment, Haley Michelle Duncan

Graduate Theses and Dissertations

Due to the drastic differences in the projects involved, this dissertation will be split into two sections: Alzheimer’s disease and chronic kidney disease. Each chapter will contain an introduction, materials and methods section, results and discussion, conclusions, and works cited section. The Alzheimer’s disease chapter will also have a supplemental figures section containing the polyacrylamide gels that were silver stained and quantified via ImageJ. The presence of elevated levels of amyloid beta oligomeric species in the brain has been related to the pathology of Alzheimer’s disease. As these oligomeric species are transient in nature, their kinetics pose a challenge to …

Cover-Crop Effects On Near-Surface Soil Properties Over Time In The Lower Mississippi River Valley, Cooper Fanning

Graduate Theses and Dissertations

Human population growth and climate change are present stressors that continue to put pressure on current agricultural production systems, where typical row-crop agricultural practices can negatively impact soil health. Extensive use of cover crops (CC) to increase soil health remains widely unrealized. Soil health in Arkansas is a major concern for sustaining agricultural output, therefore research into CC implementation across Arkansas to maintain or improve soil health is needed. The objective of this study was to evaluate the effects of CC (i.e., with and without CC) across various physical, hydraulic, biological, and chemical soil indicators in the Lower Mississippi River …

Real-Time Delphi Study: Perspectives Of An Autistic Panel On Independent Living, Celeste Michaud

Graduate Theses and Dissertations

The shift from institutional living to community integration for people with disabilities, including autistic people, has been significantly influenced by legislative measures and advocacy. Despite these efforts, autistic youth and adults still experience a unique transition to independent living compared to their peers with other disabilities. Studies have reported that autistic adults are more likely to remain in the family home and less likely to live independently post-high school (Anderson et al., 2014). Existing literature and legislation illustrate a fragmented approach to defining and measuring independent living for autistic adults, often driven by non-autistic perspectives (Cribb et al., 2019). This …

Cobblestone Farms, Fayetteville: A Study Of A Non-Profit Teaching Farm’S Volunteer Management Programs, Ariel Scholten

Graduate Theses and Dissertations

Non-profit teaching farms (NPTFs) represent a unique intersection of mission-driven non-profits, agricultural education, and sustainable food production. Despite their growing presence, research on NPTFs, particularly regarding volunteer management, remains limited. This thesis examines volunteer management practices at Cobblestone Farms (CF), a prominent NPTF in Northwest Arkansas, focusing on its strategies to engage and retain volunteers. Through qualitative methods including semi-structured interviews with staff and volunteers, the study identifies, describes, and evaluates key components of CF's volunteer management program. Major findings reveal that CF leverages digital media, online platforms like Give Pulse, and strategic partnerships to recruit and maintain volunteers. The …

A Comparative Study Of Hpv Vaccine Acceptability Across Global North And South Countries: Usa And Kenya, Robert Nyaga, Prince Adu Gyamfi

Faculty Publications

This study examined the HPV vaccine landscape in Kenya and the USA with

a focus on if differences exist in the perceptions of HPV knowledge, vaccine

attitudes, subjective norms, perceived behavioural control, and vaccine

intention among students across country and gender. It also provides useful

findings that can inform the design of persuasive health messages to promote

the uptake of HPV vaccines among college students in Kenya and the USA.

The study used surveys to recruit 1,033 participants (511 Kenyan and 522 USA

students). The two-way MANOVA analysis revealed that the multivariate

main effects showed no significant differences for gender, …

Bridging The Gap: Ai And The Hidden Structure Of Consciousness, Emily Barnes, James Hutson

Faculty Scholarship

The quest to develop Artificial Intelligence (AI) systems that possess human-like consciousness necessitates a deep dive into both theoretical and practical aspects underpinning this ambitious goal. This article builds on initial philosophical explorations of AI consciousness by examining the intricate and often hidden structures that may facilitate conscious experiences in AI. Drawing from concepts in cognitive science and neuroscience, the article elucidates how AI systems can be designed to replicate the structural and functional aspects of human consciousness. The discussion includes the Hierarchy of Spatial Belongings proposed by Forti (2024), frameworks like the Integrated Information Theory (IIT), and models linking …

Regrounding The Unworldly: Carnap’S Politically Engaged Logical Pluralism, Noah Friedman-Biglin

Faculty Research, Scholarly, and Creative Activity

Recent discussions of logical pluralism trace its origins to Rudolf Carnap’s principle of tolerance; indeed, the principle is seen as one of Carnap’s lasting philosophical contributions. In this paper, I will argue that Carnap’s reasons for adopting this principle are not purely logical, but are rather founded in the Vienna Circle’s manifesto—a programmatic document that brings the Circle’s philosophical work together with a program of social change. Building on work by Uebel, Romizi, and others, I argue that we must understand the principle in light of Carnap’s role in writing the manifesto, and thus as integrated into the larger philosophical …

Physics-Informed Machine Learning Methods For Inverse Design Of Multi-Phase Materials With Targeted Mechanical Properties, Yunpeng Wu

All Dissertations

Advances in machine learning algorithms and applications have significantly enhanced engineering inverse design capabilities. This work focuses on the machine learning-based inverse design of material microstructures with targeted linear and nonlinear mechanical properties. It involves developing and applying predictive and generative physics-informed neural networks for both 2D and 3D multiphase materials.

The first investigation aims to develop a machine learning method for the inverse design of 2D multiphase materials, particularly porous materials. We first develop machine learning methods to understand the implicit relationship between a material's microstructure and its mechanical behavior. Specifically, we use ResNet-based models to predict the elastic …

Evaluating The Use Of The Braden Scale For Predicting Pressure Sore Risk© In Residents Of A Short-Term Rehabilitation Facility, Amelia Simmons

All Dissertations

Background: Pressure injuries are significant health issues and one of the biggest challenges organizations face on a day-to-day basis. Aside from the high cost of treatment, pressure injuries also have a great impact on patients’ lives and on the provider’s ability to render appropriate care to patients The keys to preventing the development of pressure ulcers is to identify at-risk individuals as soon as possible so that measures can be implemented.

Objective: To evaluate use of the Braden Scale© on admission and weekly for three weeks in residents admitted to a short-term rehabilitation facility for two months immediately following a …

Ah, You’Re One Of Those Entrepreneurs: An Investigation Into Investors’ Evaluations And Support Of Typecasted Entrepreneurs, Jonathan C. Preedom

All Dissertations

Chapter 1: In this qualitative study, I examine how entrepreneurial investors assess and decide which early-stage ventures to support based on the entrepreneurial pitch. These decisions are made in highly uncertain environments where the risk of incorrect evaluations is significant. Drawing on the literature on categorization and sensemaking, I induce a typology of five common ways investors typecast entrepreneurs based on salient auditory and visual cues from the pitch. This work provides an important foundation for understanding biases in the investor-entrepreneur dynamic, as well as the implications of such typecasting for entrepreneurial resource support.

Chapter 2: In this quantitative study, …

Data-Driven Enhanced Energy Management System Applications For Energy Control Centers, Dulip Madurasinghe

All Dissertations

This dissertation explores the pressing needs of modern bulk power system operation and control and delves into enhancements to EMS applications with minimal infrastructure development. The dissertation investigates three main EMS application enhancements. The transmission network topology processing (TNTP) is a foundational application of the EMS. A physics-based hierarchical transmission network topology processing (H-TNTP), including substation configuration identification, to improve efficiency and reliability is proposed. Secondly, a multi-level distributed linear state estimation (D-LSE) approach solely based on PMUs is proposed utilizing H-TNTP as the network modeling tool. The D-LSE can conduct linear state estimation (LSE) at either substation, area or …

Fantastic Trolls And Where To Find Them: Problem Framing In The Defense Against The Informational Dark Arts, Jayson M. Warren

All Dissertations

In the wake of Russian interference in the 2016 U.S. presidential election, the notion of state-sponsored trolls engaging in information operations on social media has captured the attention of society. Yet eight years after this policymaking focusing event, sustainable solutions prove elusive and there is still much that is not known about the underlying phenomenon. This dissertation is part explanatory and part exploratory in its attempts to answer the overarching research question: What is the Relationship Between How the Problem of State-Sponsored Trolls on Social Media is Framed & the Way U.S. Federal Policy Attempts to Solve It? Using …

Integrating Artificial Intelligence And Augmented Reality For Enhanced Task Performance In The Construction Industry, Aasish Chandrika Bhanu

All Dissertations

The Architecture, Engineering, and Construction (AEC) sector, characterized by its complex tasks, often faces challenges in adopting cutting-edge technologies, a trend that can significantly hinder productivity improvements compared to other industries. This dissertation explores the emerging integration of Artificial Intelligence (AI) and Augmented Reality (AR) within the AEC domain, investigating how effectively this can be implemented to potentially revolutionize industry practices. AI could be used in the AEC domain for advanced analytical and decision-making processes, while AR could be used for training, visualization, and remote collaboration.

In scenarios where construction site workers require expert guidance, these technologies could be helpful. …

Opioid Overdose Epidemic Modeling, Chelsea Spence

All Dissertations

The opioid overdose crisis in the United States has led to thousands of lost lives and thousands more people struggling with opioid dependence. Disease modeling allows researchers to examine the course that the disease may take and to investigate policies to determine the effects they may have. Disease models can be used to model non-communicable diseases and have been used to study opioid use disorder. Many types of disease models exist with their own inherent benefits and drawbacks.

In this dissertation, we provide a scoping review of the disease models that have been used to study the opioid overdose epidemic. …

Equilibria And Effective Transition Rates In Linear Networks, Sayani Ghosh

All Dissertations

Investigating equilibration in nucleosynthetic processes is crucial for understanding stellar chemical abundances in nuclear astrophysical scenarios. While current computational models are effective at predicting final species abundances at the end of these stellar processes, they fail to provide insights into the evolution of equilibrium. Without this deeper understanding, it is challenging to determine the impact of individual reaction rates on timescales and the resultant equilibrium.

In this work, we model nucleosynthetic processes as directed graphs. We develop theorems that allow us to express the mass fractions of species as spanning arborescences of these graphs. By obtaining eigenvalues in terms of …

Hardware-Oriented Protection And Acceleration For Machine Learning Application, Antian Wang

All Dissertations

The security of Machine Learning (ML) grows along with the development of high-performance models and expanding application scenarios. Numerous users are benefiting from the convenience brought by transformative ML applications. In the meantime, various attackers are trying to find vulnerabilities within ML deployment service models, thereby undermining the performance of ML and jeopardizing stakeholders’ interests. The dissertation focuses on the two aspects of secure ML applications: acceleration and protection. Homomorphic Encryption (HE) emerges as a widely recognized security primitive suitable for the cloud computing service model, where the computation can be performed over ciphertext without decryption. However, evaluations in the …

On Counter-Memes: A Rhetorical Study Of Allyship In Social Media Memetics From 2015-2024, Kaitlyn Samons

All Dissertations

This dissertation examines the importance of Online allyship through a newly coined term in Memetics and Mis- and Disinformation: “Counter-Memeship.” This work combines previous contributing works on “memes,” “counter-memes,” “counter-stories,” and “allyship” through the lens of feminist, white, and communication theories. Internet memes and studies are explored by looking at how Online participants in internet spaces interact with each other in modern-day protests in memetic ways. The researcher utilizes descriptive and exploratory methods to articulate better how internet memes work between 2015 and 2024. The primary purpose of this research is to see whether Online protests can be considered non-performative …

How Far Does The Apple Fall? Intergenerational Processes Underlying The Attainment Of Decent Work And Implications For Occupational Health And Well-Being, Baylor A. Graham

All Dissertations

Despite decades of progress spurred by the Decent Work Agenda (International Labor Organization, 1999), efforts to improve working conditions, ensure fair wages, and establish health and well-being as fundamental standards in employment practices continue to be sorely needed. The burden of inadequate decent work has demonstrated profound effects on individual health and well-being. However, the effects of inadequate decent work are rarely investigated over long periods of time and are entirely unexplored in relation to effects on children as they age and enter the workforce themselves. Accordingly, this dissertation investigated the intergenerational effects of decent work, extending beyond the immediate …

Exploring The Use Of Social Media Among Theme Park Guests: A Uses And Gratification Theory Approach, William J. Henderson

All Dissertations

Theme parks have provided billions of dollars to the local economies of tourist destinations (Blair & Rush, 1998; Warden, 2019). In the digital age, the theme park experience is shared with vast online audiences and so there is a need to understand how theme parks are presented on social media from the guest perspective. Specifically, it is vital to understand the uses and gratifications of social media use and content creation from guests and influencers within a theme park context.

The Uses and Gratifications Theory serves as a foundational theory for this research to understand the psychological gratifications found through …

Identification And Validation Of A Measurement Of Emergency Physician Workload During End Of Shift Patient Handoffs, Steven Foster

All Dissertations

Recent increases in emergency physician (EP) workload have been identified as contributors to increased EP burnout, increased staff attrition, decreased patient safety, and increased patient admission rates. Patient handoffs have been extensively researched as critical points in patient care, with existing research primarily focusing on communication errors and interventions designed to standardize handoff communication protocols.

While end of shift handoffs in hospital emergency departments (EDs) intuitively represent a transfer of patient caseload from an outgoing EP to an incoming EP, there is a fundamental lack of literature examining how such handoffs contribute to EP workload, and a similar lack of …

On The Structure, Energy, And Segregation Behavior Of Grain Boundaries In Metallic Systems, Yasir Mahmood

All Dissertations

Nearly all structural metallic systems are multi-component polycrystalline aggregates; their microstructures are composed of crystalline grains that are internally joined at grain boundaries (GBs). This thesis focuses on GB structure, energy, and chemistry, as these greatly influence many material properties and processes, including boundary dynamics during processing treatments or under operating conditions.

Using atomistic simulations, we examine the impact of metastable GB structures on solute segregation. A wide range of GB geometries and metastable structures are used in our study. The Al-Mg alloy is used because it is of interest for light weighting. The atomistic simulation results are used to …

Studying The Chemistry-Property Relationship In Magnetic And Optical Materials: Spin S = 3/2 Systems Of Neodymium, Manganese, And Cobalt Oxyanions, Xudong Huai

All Dissertations

This dissertation describes the design and tunability of new magnetic and optical materials, emphasizing the intricate relationship between their crystal structures and their optical, electronic, and magnetic properties.

Two new frustrated magnets, ANd(SO₄)₂ (A = Rb, Cs), were designed and synthesized to examine the influence of the the counter cation A site in Nd lanthanide materials featuring a distorted triangular magnetic lattice with S = 3/2. This work demonstrates how the tunability of magnetic and photoluminescent properties can be achieved through the A sites, with findings validated through density functional theory calculations.

AMnTeO₆ (A = Ca, …

Computer Vision Algorithms For Assessment Of Surgical Suturing Skill Using Hand And Needle Motion, Jianxin Gao

All Dissertations

Surgical suturing skill assessment is a crucial part of surgical education. Vascular surgery educators have developed a simulation-based examination called Fundamentals of Vascular Surgery, which includes a clock-face model for assessing open surgical suturing skills. The clock-face model, however, requires the valuable time of expert surgeons to determine examinees' skills. Moreover, expert surgeons have different judgments for appropriate sutures, which leads to inconsistent grading. These limitations motivate us to use sensors to measure examinees' needle motions and hand motions during the clock-face suturing exercises, and then use the measurements for objective suturing skill assessment.

To assess suturing skills based on …

Remote Onboarding Of Software Developers: Leveraging Virtual Reality And Ai Tools, James Dominic

All Dissertations

Software development teams add newcomers to accommodate the increasing demand, complexity of software solutions, and turnover. Onboarding newcomers is expensive and error-prone. It can take up to three years for a newcomer to become an expert on a project. Onboarding techniques described in the current literature focus on collocated teams. As more teams are adopting remote and distributed team structures, I address this research gap in understanding remote onboarding for software developers. I present my research on the use of Virtual Reality (VR) for remote software developer onboarding. I discuss a VR remote pair programming environment. With positive outcomes, pair …

Novel Meta-Materials Application For Pressure-Offloading Of Diabetic Foot Ulcers, Kyle Walker

All Dissertations

Diabetes and its associated complications have seen their prevalence sharply rise in the United States over the past few decades. In fact, the prevalence of diagnosed diabetes has nearly doubled from 5.1% of the US population in 1988, to 9% in the most recent CDC report, which does not include the large percentage of the population with undiagnosed or prediabetes. Of this diabetic population, it is estimated that up to 34% will experience at least one foot ulcer during their lifetime. In worst case scenarios, these ulcers can become infected and eventually require amputation of a portion of, or the …

Improving Academic Attitudes And Motivation Using Literacy Learning In A Rural Literacy Intervention Classroom, Dannie Wilson

All Dissertations

This qualitative study focuses on the importance of reading picture books aloud to improve students' social skills capacity by utilizing literacy and social skills in a rural setting. It is designed to address a problem of practice: the need for striving third, fourth, and fifth-grade students to gain and maintain motivation and positive attitudes toward learning. An overarching research question guided this study: “How does teaching interpersonal skills affect literacy learning attitudes and motivation in a rural fringe school?” The goal was to investigate strategies through improvement science. A short Plan-Do-Study-Act cycle was used as the structure for the research …

Pelvic Sucker Form And Function In Waterfall Climbing Gobies: Variation In Morphology And Adhesive Performance Can Inspire Biomimetic Innovation, Amanda Palecek Mcclung

All Dissertations

Adhesive systems have evolved in many animal lineages and have appeared multiple times among the fishes. Bioadhesion in the gobies, a group found around the world, plays a role in both station-holding and even climbing. Among the Hawaiian streams, we find four species of amphidromous gobies which must face predators as juveniles and climb streams up to hundreds of feet tall to reach adult habitats. These gobies exhibit a range of climbing and adhesive abilities that result in an elevation-dependent species stratification, in which increasingly proficient climbing species are found in streams at increasingly higher elevations. This group is therefore …

The Development Of A Novel Cartilage Analog Scaffold For Chondral Regeneration, Vishal Thomas

All Dissertations

Focal Chondral Defects (FCDs) are cartilage injuries that affect about 900,000 Americans every year. Left untreated, these may lead to osteoarthritis and eventually necessitate painful knee replacements. Current treatment options are limited in terms of durability, cost, and availability of grafts. Tissue engineering, using natural scaffolds, are a highly attractive alternative promising cost efficiency, abundance, and long-term benefits. However, their low mechanical strength and dense matrices are impediments that could lead to sub-optimal repair.

In this work, a natural biomaterial, the bovine nucleus pulposus (bNP), derived from intervertebral disc tissue, was identified as a candidate scaffold for cartilage regeneration. Mechanical …