Digital Commons Network^™

Lgbtq+ College Students’ Willingness To Access Campus Health Services At A Midsized, Urban Christian University: A Study On Disparities, Samual J. Piatt, Christian Williams, Frecia Gonzalez

SPARK Symposium Presentations

Introduction

LGBTQ+ college students face inequitable health outcomes in both mental health and physical health versus non-LGBTQ+ counterparts (The Trevor Project, 2023), (Brittain et Dinger, 2015). LGBTQ+ students experience higher unwillingness and disparities in care access due to negative perceptions of and experiences with UHS providers (Hood et al, 2019). Research indicates that better provider LGBTQ+ cultural awareness contributes to a more affirming space which in turn benefits LGBTQ+ healthcare (Parmenter et al, 2020), (Prasad et al, 2023).

Methods

A 2024 cross-sectional study assessed the comfort levels of LGBTQ+ college students in accessing student health services, explore how affirming healthcare …

Leveraging Within-Field Spatial Variability To Optimize Soybean Yield, Seed Quality, And Profitability, Marina Marly Dalla Betta

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Optimizing yield and seed quality in soybean production is critical for both profitability and meeting market demands. However, within-field variability in soil properties poses a challenge in determining optimal management strategies to maximize soybean yield, seed quality, and profitability. This work aimed to evaluate the spatial variability of soybean fields to optimize soybean seeding rates, seed quality, and profitability. Two case studies were used to carry over this research. The first study looked at the optimal economical site-specific soybean seeding rates using 11 on-farm precision experiments across Nebraska. The second study looked at the protein and oil variability within 22 …

Post-Emption And The Mayoral Toolbox: Levers And Limits Of City Resistance To State Preemption, Quinton D. Lucas, Gavriel Schreiber

University of Chicago Law Review

States increasingly deploy aggressive preemption measures against disfavored localities. Scholars have raised the alarm, but cities’ subordinate legal status leaves them disempowered. To push back, municipal advocates need to thoroughly under- stand the complex bilateral relationship between cities and their states.

That is where I come in. As mayor of a progressive city in a conservative state, I swim in the hostile symbiosis that characterizes city-state relations. By drawing on real-life examples, closed-door conversations, and previously private documents, my coauthor and I demonstrate the potence of multipronged city power. We synthesize our stories into a thicker account of state motivation …

Viewing The Unseen: Requesting Accommodation For Non-Visible Disabilities Under The Ada After Kelly V. Town Of Abingdon, Jason Naulty

North Carolina Law Review

No abstract provided.

Disability Discrimination By Clinical Algorithm, Elizabeth Pendo, Jennifer D. Oliva

North Carolina Law Review

No abstract provided.

Case Brief: In Re R.A.F.–Beware Of The "Haunting Specter", Sam W. Scheipers

North Carolina Law Review

No abstract provided.

Virtual Production In Unreal Engine 5: Tools For The Game And Film Industry, Hannah Hogan

Master of Fine Arts in Digital Media Culminating Experience

Virtual Production (VP) blends both the game and film industries with the use of Unreal Engine. This thesis explores how Unreal Engine 5 (UE5) bridges the gap between these fields, providing powerful tools for both film projects and immersive experiences. The research examines UE5's capabilities, including real-time rendering, photorealistic environments, and immersive set design, and demonstrates how game and film production workflows intersect. This study focuses on three case studies highlighting how VP tools can be used in district ways: immersive gameplay, film production, and creating engaging video game trailers. Finally, this research explores the advantages of the diverse ways …

Prison Social Climate, Chloe Upton

Honors Projects

This literature synthesis proposes an examination of what social climate is most effective for establishing positive prison culture for inmates. By looking into various research based on various authors, readers are able to learn about what is the most effective methodology for a positive prison climate.

Basic Safety Message Generation Through A Video-Based Analytics For Potential Safety Application, Abyad Enan

All Theses

With the advancement of modern artificial intelligence techniques, computer vision can play a vital role in enhancing roadway safety by reducing the risk of imminent collisions. To do so, a vision-based safety application is required, where a roadside camera can monitor the roadway traffic and predict potential risks of crashes in real-time. If any risky situation or behavior is observed that may lead to a crash, then a safety application can send warnings to the vehicles at risk. For vision-based safety applications on a roadway section, it is important to accurately monitor each vehicle’s location, speed, acceleration, heading direction, etc. …

Prediction Of Dislocation Density During Casting Of 316 Stainless Steel Based Alloys As A Function Of Chromium And Nickel Composition, Abhishek Chitradurga Ranganath

All Theses

By the 1990s, computational methods were beginning to be used to study dislocation density in mental casting. Prior to that time research was based heavily on laboratory studies. This move was encouraged by the need to overcome limitations that experimental approaches had, including high costs and time-consuming processes, and needs of researchers to understand atomic-scale phenomena. Computational techniques allow complex materials to be simulated in cost effective way and can provide insight into behaviour that could never be determined through experimental methods alone.

This work utilized molecular dynamics (MD) simulations along with machine learning approaches to examine the dislocation density …

Hardware Applications Of High-Speed Fault Detection Algorithms, Daniel Zintsmaster

All Theses

The growing need for a sustainable electric energy infrastructure has driven research into control, protection, and optimization of power systems. A key challenge is that the changing grid must operate at increasingly higher speeds, but many current hardware devices cannot meet these demands. This thesis focuses on power system protection, aiming to design a hardware solution that can detect and isolate faults in microseconds, ensuring faster, more reliable grid operations. The first hardware developed was for a low-voltage direct current (LVdc) microgrid, which faces challenges due to a lack of protection schemes and novel speed requirements. This thesis presents protection …

Exploiting Randomness In Secret Sharing, Cailyn Bass

All Theses

Shamir's (k,n)-threshold scheme is a method for sharing a secret among n participants such that any group of k or more participants can recover the secret. Additionally, any group of participants with size less than k should learn nothing about the secret. The scheme works by distributing a share to each participant, where each share is a linear combination of the secret and k-1 random symbols. This allows any group of k or more participants to solve a linear system to compute the secret. Any group of less than k participants does not have enough to determine anything about the …

Application Of Lossy And Lossless Compression To Dicom Files, Yizhe Yang

All Theses

The Digital Imaging and Communications in Medicine (DICOM) standard is widely utilized for the management, storage, and transfer of medical images. However, the substantial file sizes associated with DICOM data present challenges in terms of storage and data transmission. Data reduction techniques help address these challenges by minimizing the size of the data while preserving its integrity. This thesis examines various compression methods aimed at reducing the size of DICOM files. We evaluate five lossless compressors and four lossy compressors on DICOM data to compare and assess their performance. Through an analysis of each compressor’s compression efficiency and resulting image …

Informing Management Of American Shad (Alosa Sapidissima) In The Carolinas: Evaluating Novel Fish Passage Approaches And Acoustic Tracking Methods, Margaret Gaither

All Theses

Acoustic telemetry is a valuable tool for fisheries scientists to study the movements and migratory behaviors of aquatic organisms. A critical assumption of this method is that tagged fish exhibit similar behaviors and survival rates as their untagged counterparts. To investigate this, we conducted a 12-week laboratory study on adult American Shad (Alosa sapidissima) using gastroesophageal insertion of acoustic transmitters. We implanted 80 fish with dummy transmitters and monitored tag retention and survival. Our analysis, employing a mixed effects Cox’s proportional hazards model, revealed no significant differences in survival between tagged and control fish, regardless of sex. Additionally, …

Optimizing Sublimation Transfer Printing: Influence Of Temperature And Dwell Time On Different Synthetic Fabrics With A Focus On Color Metrics And Delta E Evaluation, Ramya Potnis

All Theses

Various techniques are employed to create images on textile fabrics. This study utilized a dye sublimation transfer process to print onto synthetic textile fabrics. Sublimation transfer printing is a widely used method for applying designs onto fabrics. However, achieving consistent and accurate color reproduction remains a significant challenge. Factors such as temperature and dwell time can heavily influence the color accuracy and overall quality of the prints, making it essential to study their effects.

The study focuses on the influence of temperature and dwell time to evaluate the color quality of the sublimation transfer prints across different synthetic fabrics. The …

The Effect Of Packaging On The Acceptance Of Natural Peanut Butter, Perian M. Reese

All Theses

The aim was to determine the effect of packaging on the acceptance of natural peanut butter, especially concerning the acceptance of the undesirable oil layer. The jars of peanut butter differed by color, label size, and inclusion of qualifying statements. 119 participants across two groups completed this study. Both groups completed an eye-tracking study in a mock grocery setting. The first group rated all five jars in appearance, expected quality, and overall rating. They were given one sample cup of peanut butter and gave hedonic liking values for color, oiliness, peanut flavor, smoothness, sweetness, and overall liking. The second group …

Investigation Of Chondrogenesis, Myogenesis, And Osteogenesis After 2,4-Dtbp, 2-Bp, 4-Bp, 3,5-Dtbc Exposure In Zebrafish, Haley Brashears

All Theses

Synthetic phenolic antioxidants (SPAs) are used in personal care products, food packaging, and water pipes, common SPAs include 2,4-di-tert-butylphenol (2,4-DTBP), 2-tert-butyl phenol (2-BP), and 4-tert-butyl phenol (4-BP). These compounds are detected in the environment and in human biological samples. 2,4-DTBP has been detected in cord plasma, placenta, and breast milk samples. This drives the concern regarding developmental toxicity. In human iPS cells 2,4-DTBP impairs differentiation into somites and osteoblasts. Other SPAs, like 2,6-di-tert-butyl-hydroxytoluene caused increased rates of malformations including yolk and pericardial edema, and spinal curvature in 5-day post fertilization (dpf) zebrafish. …

Influence Of Hygrothermal Conditions Of The Bistability Of Asymmetric Carbon Fiber Laminate Composites, Celia Hill

All Theses

Carbon fiber-reinforced polymer (CFRP) laminates have widespread use in many industries because of their exceptional strength-to-weight ratio. Carbon fiber laminates following an asymmetric layup orientation can exhibit bistability meaning the laminate can exist at two stable geometric configurations. The morphing characteristics of bistable CRFP has a growing level of interest because of its potential in various applications including space aircraft structures for easy repair, automotive structures for energy dissipation and ergonomics, robotics for flexible motion and energy harvesting. Existing research shows that both moisture and temperature affect the material properties and behavior of CFRP laminates, however, the influence of moisture …

Bounding The Convex Hull Relaxation Of The Unit Commitment Problem With The Shapley-Folkman Theorem, Lauren Henderson

All Theses

The Unit Commitment (UC) problem finds an optimal schedule for a set of generators by minimizing the total operation cost subject to demand and operational constraints. The UC problem is often modeled with a mixed-integer linear program (MILP). We employ the Shapley-Folkman Theorem to provide a bound on the size of fractional solutions of its convex hull relaxation. This result is used to obtain a bound on the optimality gap between the MILP and the convex hull relaxation, which is further tightened using several problem-specific properties of UC. We conduct extensive numerical experiments to study the tightness of this threshold, …

The Relationship Between Aging Perceptions And Cognition Among Older Adults: A Cross-Sectional Study Using The Enact And Efit Studies, Ava Mcvey

All Theses

Maintaining cognition is critical to overall health and independence. While lifestyle predictors (e.g., cognitive engagement, social engagement, physical activity) of cognition have been established in current research, the relationship of one’s perceptions of aging and cognition have been less thoroughly investigated. This thesis cross-sectionally explores the relationships between self-perceptions of aging (SPA; including awareness of age-related change and expectations regarding aging) and cognition, including performance-based measures of executive function (Matrix Reasoning, Letter/Number Switching, Digit Symbol, Trails A & B, Visual Paired Associates) and self-reported cognition (Cognitive Self Report Questionnaire). Participants include community dwelling older adults from two studies: the Elucidating …

Comparing The Effects Of Traffic Speed And Driver Assistance On Different Age Groups: Mixed Methods User Testing, Alan Mintz

All Theses

Although much research exists investigating preferences towards transportation and driver assistance technologies, there is a gap in the literature related to taking a mixed methods approach investigating age-related differences in traffic management behaviors. Previous studies have established that older adults tend to avoid higher risk traffic situations more often than younger adults. This research builds on existing work that compares different aged participants simulated driving behaviors, self-reported workload, and interview responses. Benefits from this study include adding to our understanding of gap maintenance behavior, perceived workload at varying traffic speeds, and preferences among younger and older drivers towards offloading driving …

An Analysis Of The Properties Of Polar Codes, Luke Szramowski

All Theses

Polar Codes have risen to the forefront of practical coding theory, due to their incredible efficiency and ease of construction. Originally introduced by Arikan in his 2009 paper, they are the first code defined with an explicit construction that achieved channel capacity. Moreover, polar codes possess some physically practical properties that make their implementation alluring. In the same paper as mentioned above, Arikan elaborated on his construction and noted that the construction given was one specific instance of a polar code and that there is a family of polar codes that can be produced by the same method. Since this …

The Effect Of Pressure Gradients On Perceived Discomfort, Zachary Bush

All Theses

Introduction:

A pressure gradient is where high and low pressure meet. It is responsible for displacement and irritation of the skin commonly caused by tight bandages, bracelets, or socks. The irritation is at the edge where the skin is displaced by the high and low pressure. An analysis of the effect pressure gradients have on discomfort would have significant medical relevance for any device, fixture, or clothing pressed against the skin at high pressure. This primarily includes prosthetic and orthotic devices.

The bottom surface of the heel provides a naturally circular, uniform pressure profile. This makes it the optimal testing …

Traittrainr: Accelerating Large-Scale Simulation Under Models Of Continuous Trait Evolution, Jenniffer Roa Lozano, Mataya Duncan, Duane D. Mckenna, Todd A. Castoe, Michael Degiorgio, Richard Adams

Entomology and Plant Pathology Faculty Publications and Presentations

Abstract

The scale and scope of comparative trait data are expanding at unprecedented rates, and recent advances in evolutionary modeling and simulation sometimes struggle to match this pace. Well-organized and flexible applications for conducting large-scale simulations of evolution hold promise in this context for understanding models and more so our ability to confidently estimate them with real trait data sampled from nature. Results

We introduce TraitTrainR, an R package designed to facilitate efficient, large-scale simulations under complex models of continuous trait evolution. TraitTrainR employs several output formats, supports popular trait data transformations, accommodates multi-trait evolution, and exhibits flexibility …

Synthesis Of Binary-Input Multi-Valued Output Optical Cascades For Reversible And Quantum Technologies, Ishani Agarwal, Miroslav Saraivanov, Marek Perkowski

Electrical and Computer Engineering Faculty Publications and Presentations

This paper extends the decomposition from the group theory based methods of Sasao and Saraivanov to design binary input multivalued output quantum cascades realized with optical NOT, SWAP, and Fredkin Gates. We present this method for 3, 5, and 7 valued outputs, but in general it can be used for odd prime valued outputs. The method can be extended to realize hybrid functions with different valued outputs. A class of local transformations is presented that can simplify the final cascade circuits. Using these simplifying transformations, we present an upper bound on the maximum number of gates in an arbitrary -variable …

Preserving The Future Of Juries And Jury Trials, Paula Hannaford-Agor, Hope Forbush, Miriam Hamilton, Jawwaad Johnson, Morgan Moffett

Faculty Publications

To preserve the future of juries and jury trials, the National Center for State Courts (NCSC) convened a meeting of representatives from a broad array of justice system stakeholders as a project under the Justice for All Reauthorization Act (JFARA). To frame the stakeholder discussions, NCSC employed strategic foresight, a methodological approach designed to explore a range of possible futures of juries and jury trials within the American justice system as a vehicle for identifying critical vulnerabilities within the current jury system and proposing targeted strategies to preserve and strengthen jury trials. Critical vulnerabilities are those areas of weakness that …

Correlates Of Creativity And Elementary School Students’ Perceptions Of Individual And Sociocultural Factors, Seokmin Kang, Hye-Sook Park

Teaching and Learning Faculty Publications

The study investigated the relationships between individual and sociocultural factors and students’ creativity based on a sociocultural perspective. The participants are 7,324 fifth graders from 242 schools obtained from the Korean Educational Longitudinal Study 2013. Through multilevel modeling, student gender, self-regulation behaviors, academic achievement, extrinsic motivation, and perceived parenting style at level 1, and school characteristics such as teacher’s teaching methods, students’ relationship with their teacher, and their teacher’s academic pressure at level 2 were incorporated. The final model incorporating both level 1 and level 2 variables showed that the most significant variable related to students’ creativity was self-regulation, followed …

Higher Abundance Of Disturbance-Favoured Trees And Shrubs In European Temperate Woodlands Prior To The Late-Quaternary Extinction Of Megafauna, Elena A. Pearce, Florence Mazier, Ralph Fyfe, Charles W. Davison, Signe Normand, Maria Antonia Serge, Paolo Scussolini, Jens Christian Svenning

School of Geography, Earth and Environmental Sciences

Large herbivorous mammals strongly influence vegetation structure by creating and maintaining open areas and causing disturbance within closed woody habitats. The herbivores alive today in Europe are only a small remnant of the large species that existed in high diversity and abundance before modern humans. The extinction of so many large herbivores during the last 50,000 years, and the loss of megaherbivores (body weight ≥1000 kg) from most of the continent before the Pleistocene–Holocene transition, is likely to have had cascading effects on vegetation structure and composition. To evaluate these effects within the European temperate forest biome, we examine the …

A Graph Motif Adversarial Attack For Fault Detection In Power Distribution Systems, Dibaloke Chanda, Nasim Yahyasoltani

Computer Science Faculty Research and Publications

Fault detection is an integral part of the protection system in a power distribution network. Due to advanced computational capabilities, deep learning-based algorithms can significantly outperform traditional methods. However, these deep learning models are prone to adversarial attacks which are not well-addressed as traditional cyber attacks in distribution systems. More specifically, to capture the structure of distribution systems, graph neural networks (GNNs) are employed. Leveraging the backdoor attack model, we propose a novel graph-based adversarial attack algorithm for fault detection in power systems. It is further shown that the adaptable structure of GNN can make them vulnerable to adversarial attacks …

Effect Of Fathers In Preemie Prep For Parents (P3) Program On Couple’S Preterm Birth Preparedness, Mir A. Basir, Siobhan M. Mcdonnell, Ruta Brazauskas, U. Olivia Kim, Sheikh Iqbal Ahamed, Jennifer J. Mcintosh, Kris Pizur-Barnekow, Michael B. Pitt, Abbey Kruper, Steven R. Leuthner, Kathryn E. Flynn

Computer Science Faculty Research and Publications

Objective

Evaluate the effect of fathers’ participation in the Preemie Prep for Parents (P3) program on maternal learning and fathers’ preterm birth knowledge.

Methods

Mothers with preterm birth predisposing medical condition(s) enrolled with or without the baby’s father and were randomized to the P3 intervention (text-messages linking to animated videos) or control (patient education webpages). Parent Prematurity Knowledge Questionnaire assessed knowledge, including unmarried fathers’ legal neonatal decision-making ability.

Results

104 mothers reported living with the baby’s father; 50 participated with the father and 54 participated alone. In the P3 group, mothers participating with the father (n = 33) had greater …