Digital Commons Network^™

Satellite Image Analysis And Sidewalk Classification Using Deep Learning Models, Subeksha Khanal

Master's Theses

Lack of sidewalk pavement can contribute to pedestrian fatalities and injuries in the USA. Although many researchers have conducted research on sidewalk detection, there are not many publicly available datasets that we would work on for sidewalk classification. In this study, I conducted classification tasks using pretrained CNN models including VGG16 and ResNet50. I extended these models by adding custom layers at the top of pretrained layers, employing various techniques to improve the classification accuracy.

The dataset comprises 4,731 images of sidewalk based on occlusion levels, including images where the sidewalk is visible from overhead and instances where sidewalk is …

Effects Of Identity And Competency-Based Rejection And Acceptance On Online Versus Face To Face Reaffiliation Preferences In Adults, August Namuth

Master's Theses

Humans are social animals, resulting in notable sensitivity to experiences of acceptance and rejection. This study extends existing research by considering whether rejection or acceptance based on identity uniquely influences reaffiliation interests. Participants recalled either an inclusionary or exclusionary experience (or a control state), which would have been based on their competency or identity. Following this experience, they indicated their interest in participating in virtual and in-person social activities. I hypothesized that identity-based rejection would foster an interest in reaffiliation through online activities due to the greater availability to join likeminded groups online compared to in person. Conversely, I hypothesized …

Novel Monitoring Dashboard For Patients Presenting To The Ed With Chest Pain, Chad A Keller Md, Bruce Feldman Do, Donna Wendling, Bryan D. Nelson Mba, Nrp, Shadi Jarjous Md, Deborah W Sundlof Do, Shuisen Li Do, Chris Deschler Bsn, Rn, Cphq, Michaela Leal, Richard S. Mackenzie Md

Department of Emergency Medicine

No abstract provided.

Agricultural Producer And Non-Producer Perceptions Of Crop Residue Burning: A Focus On Arkansas, Jillian Hyink, Ryan Bresnahan, Brandon R. Mcfadden, Aaron M. Shew, James Mitchell

Agricultural Economics and Agribusiness Faculty Publications and Presentations

Agricultural producers adopt management practices that positively and negatively affect the lives of non-producers in their communities. CRB has important environmental and human health implications, and local non-producers might have different perceptions and attitudes from agricultural producers about crop residue burning. In this paper, we use a multi-stakeholder approach to study the issue of crop residue burning (CRB). Survey data were collected from a sample of producers in Arkansas who burn crop residue and a sample of non-producers who resided in the same counties as the producers. Non-producers may not be willing to compensate producers at an amount that would …

A Micro-Perspective Analysis Of The Demand For Greek And Non-Greek Yogurt In The United States Over Calendar Years 2018 To 2020, Oral Capps, Riuxin Jia, Vikas Mishra, Macson O. Ogieriakhi

Agricultural Economics and Agribusiness Faculty Publications and Presentations

Using the Heckman framework, we develop profiles of households who purchase Greek yogurt and non-Greek yogurt and estimate own-price, cross-price, and income elasticities of demand. Attention is centered on the impacts of age, race, education, and ethnicity of the household head, household income, household size, region, the presence of children, and prices of Greek yogurt and non-Greek yogurt. This analysis rests on data acquired from Nielsen pertaining to 164,484 households over calendar years 2018–2020. Own-price elasticities are estimated to be −1.36 for Greek yogurt and −0.70 for non-Greek yogurt. Additionally, these yogurt products are not only substitutes but also necessities.

Utilizing Nanodiamond For Antiretroviral Drug Delivery To Hiv Infected Microglial Cells, Ebenezer Owusu

Theses and Dissertations

Combination antiretroviral therapy (cART) is widely used to treat HIV infection, but it fails to eradicate viral reservoirs, such as microglia in the brain, leading to HIV-associated neurological disorders (HAND). Advances in nanomedicine have enabled the development of targeted drug delivery systems, and nanodiamonds (NDs) and fluorescent nanodiamonds (FNDs) have emerged as a potential solution due to their biocompatibility, non-toxic nature, and efficiency as drug carriers. Our study builds on previous findings that NDs can cross the blood-brain barrier (BBB), aiming to utilize NDs and FNDs for their added traceability. We propose a multifunctional nanodrug platform that leverages NDs and …

Electrocatalytic Degradation Of Bisphenol A Using Nickel Sulfide Supported On Graphene Oxide And Cobalt Sulfide Supported On Graphene Oxide Composite Materials, Katherine Ellynn Wright

Theses and Dissertations

The degradation of bisphenol A (BPA) by nickel sulfide supported on graphene oxide (NiS/GO) and cobalt sulfide supported on graphene oxide (CoS/GO) composite materials was investigated. The catalysts were studied to determine the optimal conditions for BPA degradation using electrocatalysis. Electrocatalytic trials were performed using varying parameters, which included electrolyte concentrations of 1.0 g/L, 2.0 g/L, and 4.0 g/L Na2SO4, pHs of 2, 4, and 6, and constant currents of either 0.100 A or 0.200 A. During the reaction samples were taken before the current was applied and 30 minutes and 60 minute intervals to observe the degradation of …

Developing Resilient Defense Strategies Against Pheromone-Based Attacks In Foraging Robot Swarms, Ryan A. Luna

Theses and Dissertations

This thesis delves into the security of stochastic pheromone-based foraging algorithms within swarm robotic systems, a subset of foraging algorithms distinguished by their reliance on probabilistic decision-making mechanisms inspired by the natural world. Such algorithms face vulnerabilities in stigmergic communication that threaten to disrupt swarm operations. This research investigates these vulnerabilities, presenting two distinct contributions.

The first contribution examines the implementation of quarantine strategies as a defensive measure to isolate and mitigate the impact of fake resource attacks. By simulating these attacks, this study quantitatively assesses their detrimental effects on swarm efficiency and explores the efficacy …

Tarnished Glory: The Exclusion Of Buffalo Soldiers In World War I, David Michael Barron

Theses and Dissertations

This thesis examines the exclusion of the Buffalo Soldier regiments during World War I. Due to the rise of racial discrimination in the early twentieth century, the Buffalo Soldier regiments experienced violence with civilians while stationed in the United States. The violence experienced by African American soldiers would shape decisions that would ultimately impact their involvement in World War I. By examining evidence from their war record in previous conflicts and evidence from the racial violence that occurred while stationed in the US, this thesis will show that their exclusion in World War I was due to poor conduct perpetrated …

Navigating School Restructuring In The Post-Covid Era: A Principal’S Perspective In Sustaining Organizational Health While Bridging The Academic Achievement Gap, Alma Alicia Perez-Campos

Theses and Dissertations

In 2019, the COVID-19 pandemic led to nationwide school closures, followed by a mandate for schools to reopen in 2020, posing challenges for ensuring both educational continuity and student safety. This paper presents findings from a mixed-method study involving ten campus principals in District A, South Texas, post-pandemic. Qualitatively, the study explored the principals' perspectives on restructuring their campuses to address achievement gaps while maintaining organizational health. Quantitatively, it examined the relationship between achievement and organizational health scores and any differences in organizational health pre- and post-COVID-19. The study aimed to offer insights for future …

At Risk, Punished, And Pushed Out Of School: Leadership Practices Utilized By School Administrators For Discipline Consequences In South Texas Schools, Beulah San Juanita Rangel

Theses and Dissertations

The purpose of this study was to examine leadership practices utilized by school administrators for discretionary discipline consequences that feed the school-to-prison pipeline. The researcher utilized a hermeneutic phenomenological approach to investigate factors that influence campus administrators’ decision to use of exclusionary discipline through a series of semi-structured interviews. Through data analysis, three themes emerged: (1) Principals’ Impact on Student Discipline (2) Principals’ Considerations Before Using Exclusionary Discipline (3) Principals Lack of Training.

Structural Sensorimotor Adaptations In Young Adults With Low Back Pain, Isaac Chrisman, Jo Armour Smith, Rongwen Tain, Kelli G. Sharp, Laura M. Glynn, Linda R. Van Dillen, Jesse V. Jacobs, Steven C. Cramer

Student Scholar Symposium Abstracts and Posters

Chronic low back pain (CLBP) is the largest cause of disability worldwide. There is evidence for regional structural brain adaptation in CLBP. Most studies have investigated middle-aged adults and show decreased grey matter density in pain processing regions. It is not clear if these adaptations are evident early in the lifespan of individuals with CLBP. The purpose of the study was to compare sensorimotor gray matter density in young adults with a history of CLBP with back-healthy controls. 53 young adults with a greater than 1-year history of CLBP and 29 young adults with no history of LBP participated. Clinical …

Timely Dissonance : Anachronistic Music In Film, Ayda Tuncay

Student Scholar Symposium Abstracts and Posters

Music in film is used as a tool that can psychologically transport the viewer and alter their perception of a narrative. It is a highly influential aspect of the mise-en-scene and can influence both our reality and the fictional world in the film, depending on whether it is non-diegetic or diegetic. The elaborate soundscapes of period films typically utilize period accurate scores and soundtracks to embed the audience in the environment of a different age. However, this paper will examine ‘musical anachronism’ and the correlation between music and emotion through an analysis of films such as A Knight’s Tale (Brian …

Synthesis Of Thermoresponsive Poly(N-Isopropyl Acrylamide) Based Core-Shell And Hollow Shell Nanogel With Tunable Core And Shell Thickness, Mohamad Hijazi, Molla R. Islam

Student Scholar Symposium Abstracts and Posters

Nanogels have emerged as a notably safer and more effective means for drug delivery, primarily due to their adjustable drug-loading capabilities. Hollow-core nanoparticles offer some unique properties that are desirable for drug delivery applications. Initially, silica core nanoparticles were synthesized using the Stöber process at different temperatures where Tetraethoxysilane (TEOS) undergoes hydrolysis in the presence of ethanol and then a condensation reaction to form silica nanoparticles. Scanning Electron Microscopy (SEM) and Optical Microscopy (OM) analysis revealed that the size of silica core particles varied with the synthesis temperature (300 nm at 30°C to 150 at 60°C). The core silica particles …

Navigating Islamophobia: Exploring Attitudes Towards Muslim Immigration And Policing, Devansh Mehta

Student Scholar Symposium Abstracts and Posters

Since the September 11th terrorist attacks, Islamophobic dispositions in the United States have surged within its political and societal arenas. In this paper, I will examine two specific dimensions of Islamophobia such as ceasing immigration from Muslim countries and increased police presence in Muslim neighborhoods and how those behaviors may be influenced by political affiliation and different ways news is consumed using social media and cable news. Relying on the Chapman Survey of American Fears, a representative national sample of U.S. adults completed a forty-question survey in which I tested the above independent variables to see their individual effects on …

Ground-Breaking Stories In Contemporary Cinema: In A Market Full Of Remakes, What Form Does Cinematic Originality Take Today?, Elisa Fong-Hirschfelder

Student Scholar Symposium Abstracts and Posters

This work aims to analyze the evolution of both international and American cinema as an art form, specifically in relation to the abstract concept of originality, to determine what possible future trends in cinema may look like and the potential for the manifestation of “new waves” in cinema. Emerging during the Industrial Revolution, cinema has evolved as an entertainment medium from brief moving pictures presented as novelties to lengthy feature films. With its evolution arose trends in visual storytelling, including experimental, narrative, and remakes, whose own categories comprise the retelling of old stories, remakes of films in other languages, and …

Selfies As Cultural Objects, Sophia Mall

Student Scholar Symposium Abstracts and Posters

This analysis focuses on the creative and cultural industries, exploring the interrelationship between self, image, and digital culture through various representations of “selfies” or self portraits. Drawing on Susan Sontag's On Photography, I argue images as crucial cultural artifacts express various connections to personal identity and sense of self; further, I use Jean Baudrillard’s theory of simulacra and simulation to explore the relationship between an original object and an image. Here I propose a novel interpretation for simulacra: rather than viewing images solely as devalued replicas or exact equals of their subjects, I suggest that deliberately unreliable and manipulated images …

Peacekeeping The Commons: Un Peacekeeping Moderates The Effects Of Climate Change On Intercommunal Conflict, Cara Hunter

Student Scholar Symposium Abstracts and Posters

The effects of climate change have been increasingly linked to the risk of intercommunal conflict, as climatic shocks have been shown to increase resource scarcity. Policymakers and academics agree that effectively designed institutions are critical variables in preventing and mitigating conflict, particularly in ecologically-fragile areas. However, there is a lack of evidence on the specific ways to strengthen institutions in the face of climate change, especially in conflict-affected settings. We argue that UN Peacekeeping Operations moderate the effects of climate change on intercommunal conflict by strengthening institutions governing common-pool resources (CPRs) to increase cooperation between communities sharing scarce resources. We …

Lifelong Movie Goers, Hardworking Filmmakers, And Oscars Discourse, Haley Kamola

Student Scholar Symposium Abstracts and Posters

This paper focuses on the discourse surrounding the Academy Awards, often referred to as the Oscars. The differences in discourse between people working in the film industry and those who watch movies are analyzed, as they represent the supplier and recipient of films and filmmaking. These two groups offer varied perspectives on the topic. The discourse of another group, a group in-between–student filmmakers–is also analyzed. To many people, what makes a film “good” is quite subjective, so the Academy Awards are often a subject of discourse. One particular focus of discourse will be the 2024 Academy Awards. There were a …

Fear Of China's Economic Power: Media And Party Affiliation On Public Opinion, Cloe Hughes

Student Scholar Symposium Abstracts and Posters

The United States and China are the world’s two greatest economic rivals. The US-China trade war–which started in 2018–is a result of this battle for economic hegemony and has raged on for the past six years. While trade decisions are ultimately up to policymakers, public opinion is a large factor in international policy decisions, and American biases against the Chinese may adversely affect both the American and Chinese economies. In this paper, I will examine how factors including media consumption and partisanship impact American attitudes towards China’s economy overtaking the United States’ economy. Previous research has studied the effects of …

Satanic Ritual Abuse Hysteria; A Discourse Analysis, Sloan Watson

Student Scholar Symposium Abstracts and Posters

During the 1980s, moral panic erupted nationwide as allegations of satanic abuse of children were made public, sparking inflammatory headlines and sensational news stories that drove fear and doubt into the hearts of many. Known as Satanic Ritual Abuse Hysteria, this mass hysteria is now widely acknowledged to be absurd, as allegations were proven false and the mistakes made by those in positions of power were brought to attention. However, this still leaves us to question how society within this era so easily came to believe these now-proven falsities and outlandish claims of mass ritual abuse. Using Van Dijk’s “Ideology …

Unveiling Deception: Discourse Analysis Of Sora And The Impact Of Ai On Misinformation, Kellen Edwards

Student Scholar Symposium Abstracts and Posters

In today’s era of information abundance, combating the proliferation of misinformation is paramount. The growing concern within the release of artificial intelligence–AI models–have exemplified concerns through Open AI’s new text-to-video learning language model: Sora, heightening the ever-present issue of how artificial intelligence will be a detriment to society. This project is a culmination of a comprehensive analysis regarding the ongoing discourse of the effects of this language learning text-to-video model and its impending effects of deception. Implementing James Paul Gee’s meticulous discourse analysis tools, I was able to meticulously examine online discussions spanning diverse social media platforms to unearth underlying …

Sensorial Memories: A Cinema Speculum In Aftersun(2022) And Petite Maman(2021), Tingyi Zhu

Student Scholar Symposium Abstracts and Posters

In her 1975 article "Visual Pleasure and Narrative Cinema," Laura Mulvey used psychoanalysis as a political weapon to critique the issue of the male gaze in traditional Hollywood narrative cinema. Mulvey's work is pioneering for feminist film studies but was criticized and reexamined among film and feminist scholars. Building on the precedent of Mulvey and the feminist research of Luce Irigaray, contemporary scholar Lucy Bolton has proposed the camera as an "Irigarayan speculum," explaining how certain contemporary films delve into female characters' inner worlds, creating them with subjectivity and diversity. Drawing on contemporary feminist film theories and phenomenology theories, I …

“Pro-Woman, Pro-Life”: Framing Of The Anti-Abortion Movement, Olivia Rivet

Student Scholar Symposium Abstracts and Posters

This project on the “Pro-Woman, Pro-Life" framing of the Anti-Abortion Movement uses James Paul Gee's theoretical lens on discourse analysis. My research corpus is comprised of historical, legislative, news, editorial, and film data. This project focuses on when the term "Pro-Woman" first appeared in the anti-abortion discourse and how it has been used to reinforce the Pro-Life stance. I argue that the phrase -- "Pro-Woman" -- is a discoursal strategy to appeal to women who are ideologically aligned with the Pro-Choice movement. According to the Pro-Woman, Pro-Life framework, no "feminist" would want to support a practice, such as abortion, that …

The Perception Of Children As Reliable Eyewitnesses, Shelby Mcdonald

Student Scholar Symposium Abstracts and Posters

Eyewitness accounts have been integral to the criminal justice system. However, given that not every criminal case has forensic evidence that is available or admissible, the reliance on eyewitness accounts conjures questions about believability. This is an important area of research because the over-belief of witnesses may lead to wrongful convictions, yet under-belief may leave the victim without justice. The current study investigated how child-witness age, race, role as a witness (bystander versus victim), and the gender of the juror influenced the perception of child eyewitnesses through the lens of the Witness Credibility Model. Participants were presented with the testimony …

The Impact Of Childhood Trauma On Adult Attachment Style, Luella Rubin-Wylie, Desiree Crevecoeur-Macphail

Student Scholar Symposium Abstracts and Posters

Repeated and complex childhood trauma can have devastating effects on individuals and their future relationships. Attachment styles are developed in the early years of an individual's life, and adverse experiences during these early years can negatively affect the attachment style that an individual develops. Various traumatic experiences during childhood, such as abuse/neglect, death/separation of parent, or witnessing domestic violence, may lead individuals to develop insecure attachment styles in their future romantic relationships. In many instances, experiencing childhood trauma can result in the development of aninsecure attachment style of anxious, avoidant, or disorganized. This study aimed to examine the impact of …

Dancetag: Using Sensors To Improve Feedback Given To Dance Students, Yanelly Mego

Student Scholar Symposium Abstracts and Posters

The structure of dance classrooms has remained unchanged for several years. Very little, if any, technology has been incorporated to improve the quality of teaching. This has motivated our research project, whose goal is to capture dance movements with wearable sensors, to develop DANCETAG (Data Analytics and Notation with Captured Event Tagging). This is a platform that allows the gathering of data captured by Sony’s Mocopi sensors and annotating them with the dancer's movements. The Mocopi sensors make up a motion capture system. It is comprised of six small, round sensors that can be attached to velcro straps and clips. …

Sufferance For Snuff Puffs: The Acceptability And Behavior Of Smoking Marijuana And Tobacco Inside The House, Eusabeia Silfanus, Oliver Lopez, Vincent Berardi

Student Scholar Symposium Abstracts and Posters

Secondhand smoke (SHS) released from indoor smoking contributes to household air pollution, releasing large quantities of fine particulate matter which can pose negative health outcomes, especially for developing children who spend most of their time at home. The increased legalization of marijuana increases its recreational and medicinal use along with its acceptability. With tobacco use remaining prevalent, the use of marijuana and/or tobacco remains common and may occur inside the home. Project Fresh Air conducted in San Diego County studies the air quality in households (n = 298) with at least one adult smoking tobacco and/or marijuana living with at …

Improved Test Fixture For Collecting Microcontact Performance And Reliability Data, Turja Nandy, Ronald A. Coutu Jr., Rafee Mahbub

Electrical and Computer Engineering Faculty Research and Publications

Microelectromechanical systems (MEMS) ohmic contact switches are considered to be a promising candidate for wireless communication applications. The longevity of MEMS switches is directly related to the reliability and performance of microcontacts. In this work, an improved microcontact test fixture with high actuation rates (KHz) and highly precise position control (nm) and force (nN) control was developed. Here, we collected microcontact performance data from initial contact tests (ICT) and microcontact reliability data from cold switched tests (CST). To perform these tests with our test fixture, we fabricated MEMS microcontact test structures with relatively high Young’s modulus electroplated Nickel (Ni)-based, fixed–fixed …

Hvac Energy Cost Minimization In Smart Grids: A Cloud-Based Demand Side Management Approach With Game Theory Optimization And Deep Learning, Rahman Heidarykiany, Cristinel Ababei

Electrical and Computer Engineering Faculty Research and Publications

In this paper, we present a novel cloud-based demand side management (DSM) optimization approach for the cost reduction of energy usage in heating, ventilation and air conditioning (HVAC) systems in residential homes at the district level. The proposed approach achieves optimization through scheduling of HVAC energy usage within permissible bounds set by house users. House smart home energy management (SHEM) devices are connected to the utility/aggregator via a dedicated communication network that is used to enable DSM. Each house SHEM can predict its own HVAC energy usage for the next 24 h using minimalistic deep learning (DL) prediction models. These …