Digital Commons Network^™

Defining And Labeling Traversable Space In A Forested Environment, James Nguyen

All Theses

This thesis investigates the problem of identifying traversable terrain in outdoor conditions. We are motivated by research in recent years toward identifying drivable space for the purpose of developing autonomous vehicles. Our motivating application is similar but also different. We envision a “Hiker Helper” that assists humans with dismounted navigation in forested terrain. A common challenge in this type of environment is identifying a viable path for moving through terrain that is congested with trees, bushes, other flora, and natural obstacles that would make navigation difficult. We envision training an artificial intelligence (AI) model to automatically analyze images of this …

Modern Muses - An Exploration Of A Mind That Refuses To Cooperate, Carrie H. Bull

All Theses

Ancient scholars and artists turned to the classic muses for form, worship, and inspiration in pursuit of crafting their greatest works. In an information age rife with new ideas and new artists, it is inevitable that new creative obstacles will be encountered and new muses will be called upon to overcome them. This project is an exploration of the digital modeling pipeline through the formation of such muses. It begins with the creation and iteration of concept art for three original characters, moves on to the sculpting of the characters in Zbrush, creation of clothes in Marvelous Designer, posing, and …

An Economic Analysis In Relation To Aspects Of Kale And Rice Agricultural Production In South Carolina And The Broader Southeastern U.S., Shane Behler

All Theses

Agriculture has been crucial to the economic and cultural well-being of South Carolina throughout the state’s storied history. This importance has not diminished in our contemporary world. Agribusiness, which includes the agriculture and forestry sectors, is the largest industry in the state, providing nearly 260,000 jobs and 51.8 billion in annual economic impact. Almost 25,000 working farms encompass 4.8 million acres of land in South Carolina .

It is no stretch to claim that South Carolina’s agricultural industry affects almost every individual in the state. If not directly involved in the agriculture industry, it is nearly certain all residents have …

Navigating The Future: The Material Effects Of Sea Level Rise On Lighthouses Along The East Coast Of The United States, Brianna Schmidt

All Theses

Multiple aspects of climate change will affect coastal structures. One type of structure in these coastal environments that will be affected is lighthouses. These structures are and important symbol for marine navigation. Without their presents, the coastline loses an important aspect to its significance. There have already been cases of climate change scenarios affecting these structures such as erosion and wave impacts. This thesis focuses on the material vulnerability of lighthouses when in contact with new sea water levels. How vulnerable are lighthouses in terms of their material property to submersion in salt water due to sea level rise along …

Development And Evaluation Of An Arsenic Transport Model For The Maurice River Watershed, Christina Eddleman

All Theses

For many Superfund sites across the United States, arsenic is one of the most common contaminants of concern that must be cleaned up to protect human and environmental health. Past research and health studies have documented the harmful effects of inorganic arsenic on humans and the environment but selecting an appropriate remediation plan depends on several site-specific factors at each Superfund site. To assist in determining an appropriate remediation plan, sediment and contaminant transport models have been used to simulate the transport of arsenic and other contaminants of concern at contaminated sites to, e.g., make relative comparisons of the efficacy …

Using Strainmeters To Characterize Enhanced Geothermal Systems, Clem Laffaille

All Theses

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The Grove, Sabrina Blanchard

All Theses

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Navigating Real-World Challenges: A Quadruped Robot Guiding System For Visually Impaired People In Diverse Environments, Shaojun Cai, Ashwin Ram, Zhengtai Gou, Mohd Alqama Wasim Shaikh, Yu-An Chen, Yingjia Wan, Kotaro Hara, Shengdong Zhao, David Hsu

Research Collection School Of Computing and Information Systems

Blind and Visually Impaired (BVI) people find challenges in navigating unfamiliar environments, even using assistive tools such as white canes or smart devices. Increasingly affordable quadruped robots offer us opportunities to design autonomous guides that could improve how BVI people find ways around unfamiliar environments and maneuver therein. In this work, we designed RDog, a quadruped robot guiding system that supports BVI individuals’ navigation and obstacle avoidance in indoor and outdoor environments. RDog combines an advanced mapping and navigation system to guide users with force feedback and preemptive voice feedback. Using this robot as an evaluation apparatus, we conducted experiments …

The Mysterious Case Of The Attacks Against The Halifax Public Gardens: The Enclosure Of "Common" Property, Public Access To Nature, And Sustainability In The City, Sara Gwendolyn Ross

Articles, Book Chapters, & Popular Press

This Article will first describe the “thick” textured approach and methodological tools of urban legal anthropology applicable to researching and analyzing urban contact zones, which is then applied as the Article proceeds with the case study of the Halifax Public Gardens and the tree girdling and arson incidents that took place in 2022 to 2023. To situate the category of property within Halifax and within which the Halifax Public Gardens are found in order to move further into a discussion of property access and enclosure in the city, the Article then provides a description of the categories of urban property …

Assessing Undergraduate Nonprofit Management Education Programs: Combining Industry And Student Perspectives, Benjamin Walworth

Marketing Undergraduate Honors Theses

Given the role of the nonprofit sector in the U.S. economy, as well as the growth of nonprofit management education (NME) programs, there is a need to specifically assess undergraduate NME programs. This study addresses the current research gap by examining the undergraduate nonprofit studies minor at the University of Arkansas. An assessment of the minor was conducted by surveying three groups: nonprofit professionals, current students pursuing the nonprofit studies minor, and alumni of the minor. These groups were surveyed to understand why students pursue the minor, what students want or gain from the experience, as well as what skills …

Genocide Dressed In Jeans: Does Sharing A Narrative About The Uyghur Population Alter Opinions About Fast Fashion, Danya Radhi

Marketing Undergraduate Honors Theses

One of the most cherished traditions on our University of Arkansas campus is the etching of names onto Senior Walk each year. On any given day, thousands of students stroll across these beautiful sidewalks as they venture to and from class. Dressed in the latest fashions from iconic brands such as Zara, H&M, and Nike, these students are far removed from the tragedy that has befallen the Uyghur population living in the Xinjiang province, 6,914 miles away. Evidence has been mounting that the Uyghur population has been suffering through massive displacement, forced labor camps, and atrocities that we cannot even …

Second Language Acquisition In The Era Of Technology And Artificial Intelligence: Exploring New Frontiers, Mimoun Akhiat

All Graduate Reports and Creative Projects, Fall 2023 to Present

This portfolio is the capstone project of the Master of Second Language Teaching program. It offers perspectives and insights into major themes of importance to the writer. It begins with a general introduction pertaining to the writer’s education and teaching background, his goals for joining the program and an overall reflection of this experience. Following this is the writer’s teaching philosophy comprised of a description of professional environment and a teaching philosophy statement centered on the principles of multimodality, authenticity, and collaboration. The second section of this portfolio is entitled hands-on teaching experience where the writer presents and reflects on …

Workflow And Best Practices Of Planting Design In Virtual Reality, Becca L. Springer

All Graduate Reports and Creative Projects, Fall 2023 to Present

The purpose of this study is to develop a technical workflow and deliver an instructional module for teaching planting design in Virtual Reality (VR). The developed workflow and instructional model will be presented to students enrolled at Utah State University in the Landscape Architecture and Environmental Planning (LAEP) Department. The first objective of this thesis project is to explore and create a successful workflow of basic planting design principles and apply them in virtual reality with the use of new technology. The virtual reality and planting design software that were explored were Twinmotion, VR Sketch, SketchUp, AutoCAD, Land FX, Gravity …

Photon Number And Waiting-Time Distributions For Superposed Light States, Eric Seglem

Physics Undergraduate Honors Theses

Nonclassical states of light are characterized by properties which can be explained by the quantum model of light but not the classical model. Such nonclassical properties may be revealed through photon counting statistics. In our research, we have examined the properties for several variations of the superposed state of light. These variations include a superposition of coherent states with evenly distributed phases (GSC state) and a superposition of squeezed vacuum states with evenly distributed phases, with particular attention given to superpositions of two coherent states (cat states). First, we calculate the photon number distribution for each of these states, and …

Dimensional Regularization And Two-Loop Vacuum Polarization Operator: Master Integrals, Analytic Results, And Energy Shifts, Stefano Laporta, Ulrich D. Jentschura

Physics Faculty Research & Creative Works

We Present a Complete Reevaluation of the Irreducible Two-Loop Vacuum-Polarization Correction to the Photon Propagator in Quantum Electrodynamics, i.e. with an Electron-Positron Pair in the Fermion Propagators. the Integration is Carried Out by Reducing the Integrations to a Limited Set of Master Integrals, Which Are Calculated using Integration-By-Parts Identities. Dimensional Regularization is Used in D=4-2ϵ Dimensions, and On-Mass Shell Renormalization is Employed. the One-Loop Effect is Given to Order ϵ, to Be Combined with the 1/ϵ Divergence of the Two-Loop Amplitude. Master Integrals Are Given. Final Evaluations of Two-Loop Energy Shifts for 1S, 2S, and 2P States Are Done Analytically, …

The Anti-Diabetic Drug Metformin Disrupts Feeding And Sleeping Behaviors In Drosophila Melanogaster., Lucas Fitzgerald

College of Arts & Sciences Senior Theses

Dimethylbiguanide, also known as metformin, is the single most prescribed oral treatment for non-insulin dependent diabetes mellitus, or type 2 diabetes, in Western countries. The primary mechanism of action that metformin acts through is the activation of AMP kinase, an important regulator of energy homeostasis. While the anti-diabetic effects of metformin are well documented, its effects on feeding and sleeping behaviors are not well characterized. Using the model organism Drosophila melanogaster, the mean daily quantity of food consumed was measured and compared between groups treated with several dosages of metformin. Feeding interactions such as meal frequency and length were …

A Revised Synthesis Of The Cationic Lipids Dmri And Mlri, Benjamin A. Kostic

College of Arts & Sciences Senior Theses

Lipid nanoparticles (LNPs) are an increasingly utilized method of intracellular delivery for nucleic acids. The COVID-19 vaccines from Moderna and Pfizer-BioNTech have used LNP technology to combat the recent global SARS-CoV-2 pandemic, saving millions of lives.^1,2 These vaccines consist of a lipid formulation that binds to the anionic phosphate groups of mRNAs and serves as an effective way to transport the nucleic acid across membranes into cells.⁹The mRNA encodes a viral protein. When introduced to cells, the viral protein is produced so that the immune system then can generate an appropriate antibody response.³ However, this approach …

Reforming International Investment Law To Advance Tax Justice, Madeleine Songy

Columbia Center on Sustainable Investment

Reforming International Investment Law to Advance Tax Justice" highlights the detrimental impact of current international investment treaties on tax justice and sustainable development objectives. It argues that Investor-State Dispute Settlement (ISDS) mechanisms often impede states' ability to implement effective tax policies by allowing foreign investors to challenge tax measures. The brief recommends a comprehensive reform of international investment law to ensure that investment treaties support rather than undermine tax justice. This can include eliminating ISDS provisions, drafting new treaties that safeguard the sovereign right of states to regulate taxation, and facilitating cooperation among states to reform tax systems at national, …

Government Procurement, Financial Services, And Environment: Linkages And Implications For The Eu And Brazil, Adeet Dobhal, Lucas Moreira Jiminez

Columbia Center on Sustainable Investment

The relationship between trade and the environment is increasingly a priority for policymakers and civil society. However, some of the disciplines covered by modern trade agreements have not received enough attention when it comes to their potential impact on the environment. Financial services and government procurement are two such areas, even though they are increasingly consequential topics for international trade policy and negotiations. This blind spot merits greater consideration as the connections definitely exist: the regulation of government procurement and financial services can have positive or negative implications for environmental outcomes on the ground, which makes understanding these links a …

“I Don’T Mind This Actually. It’S Kind Of Fun To Work On”: Project Based Assessment Following An Inquiry Based Unit In A Modern Middle School Classroom, Alexis J. Mctigue

English Education Theses

This paper focuses on one teacher’s action-research project examining inquiry-based teaching and project-based assessment in the middle school English classroom. The study focused on the inquiry-based instructional strategies used during a Young Adult Literature unit for seventh grade English Language Arts. The unit concluded with project-based assessments for all students. Results showed that levels of engagement rose with instructional strategies focused on inquiry and project-based assessments. Implications for middle school ELA teachers show that while project-based assessments and inquiry-based learning are effective for engagement, they are not without their challenges. Navigating department culture, limited resources, and other challenges are discussed.

Business Plan Development For An Automotive Restoration Company, Blake Howard Jones

Student Projects for Graduate Degrees

The Auto Restoration Business Plan Development project arises from a pressing problem and a compelling opportunity within the auto restoration industry. With a resurgence in interest in classic and vintage vehicles, there is a growing demand for professional auto restoration services and a need for entrepreneurs to navigate this intricate landscape. This project aims to address the lack of comprehensive business planning resources tailored to the unique requirements of auto restoration ventures, thereby fostering successful startups, and enhancing the industry's overall quality. The importance of this endeavor is underscored by the transformative impact it can have on aspiring auto restoration …

Reinvestigating The Role Of Observational Contexts In Learning Hard Nouns, Kosta Boskovic, Sumarga Suanda

Honors Scholar Theses

Developmental scientists have long been fascinated by children’s prodigious word learning capacities and by patterns in the composition of children’s early vocabularies that reveal that certain types of words are learned earlier than others. One notable pattern has been that words that denote more abstract concepts (e.g., “story”) are learned later than words that denote concrete objects (e.g., “ball”). In fact, prior studies have concluded that different kinds of abstract words, including nouns whose referents are not whole, concrete objects (or “hard nouns”; Kako, 2005), are not learnable from observational contexts alone and necessitate linguistic information to be learned. In …

Benefits Of Speech Language Pathologists On Elementary School Students, Gisel Reynoso

Capstone Projects and Master's Theses

This senior capstone research project outlines a research endeavor aimed at exploring the multifaceted impact of speech-language pathologists (SLPs) on elementary school students, with a particular focus on developing educators, enhancing diversity, and fostering subject matter expertise. Motivated by firsthand experiences in service-learning and recognizing the significant challenges students face due to communication disorders, this study seeks to investigate how SLPs can effectively support students while contributing to educators' professional development and promoting inclusivity. Through a mixed-methods approach, including interviews, surveys, and data analysis, this senior capstone research project aims to provide valuable insights into the transformative role of SLPs …

Teacher Job Satisfaction: Working Conditions, Satisfaction, And Commitment To Stay In The Profession, Mary G. Hicks

College of Education

A nationwide teacher shortage has been a problem in our country for many years. Teacher vacancies continue to be plentiful, but enrollment in teacher preparatory programs continues to decline. The study aimed to investigate low teacher retention in rural Alabama schools. Through the lens of Maslow's hierarchy of needs, this study examined teacher perception of job satisfaction and how working conditions and demographic details impacted teachers' intention to remain in the field of education. This quantitative study was completed in three rural North Central Alabama school districts. The data revealed the school administrator's critical impact on her building, the importance …

The Impact Of Differing Instability Devices On Postural Sway Parameters, Kacey Wallace

Honors Theses

Single-limb balance training is an integral part of preventing and rehabilitating lower extremity injuries. Practitioners use instability devices to provide a progressive overload to an individual during single-limb balance training sessions. Previous investigations have shown that when using instability devices, differences may or may not exist in postural sway parameters during use depending on the specific devices being assessed. Thus, this investigation sought to examine differences between a commonly used foam pad and a novel instability device (block) in measures of postural sway.

This experiment consisted of 22 healthy individuals with no history of lower extremity injury and neurological disorders. …

The Effects That Dietary Intake And Cardiorespiratory Fitness Has On Insulin Resistance In Adults, Trinady Moore

Honors Theses

Insulin resistance can impair bodily responses to insulin and the uptake of glucose within the human body. This imparity has many consequences and can more commonly cause Type II Diabetes.¹ This study focuses on how different lifestyle modifications can be used to combat the sensitivity to insulin within the body. The sample included forty-one adults whose ages varied from 18 to 35 years old. The participants completed a VO2max test, blood glucose test, and a 31- item food frequency survey. These tests and survey questions revealed the correction between the participants’ age, blood glucose levels, VO2max score, and diet …

Neurodivergent Gaming: Critical Game Design And Scholarly Practice, Mary Samblis

Honors Theses

This showcase of interactive experiences is designed to simulate and explore the hidden struggles of neurodiversity using game mechanics. It draws on my personal experience as an individual on the autistic spectrum to explore the relationship between game forms, academic scholarship, and critical thinking. The showcase aims to demonstrate the scholarly side of video game development and what video games, as a medium, have the potential to become within academia. Unlike articles or videos, video games have the unique quality to be interactive and immersive, allowing designers to experiment with mechanics as a tool for creating thoughtful and reflective experiences. …

Two Sequential Gene Expression Programs Bridged By Cell Division Support Long-Distance Collective Cell Migration, Jingjing Sun, Ayse Damla Durmaz, Aswini Babu, Frank Macabenta, Angelike Stathopoulos

Biology, Agriculture and Chemistry Faculty Publications and Presentations

The precise assembly of tissues and organs relies on spatiotemporal regulation of gene expression to coordinate the collective behavior of cells. In Drosophila embryos, the midgut musculature is formed through collective migration of caudal visceral mesoderm (CVM) cells, but how gene expression changes as cells migrate is not well understood. Here, we have focused on ten genes expressed in the CVM and the cis-regulatory sequences controlling their expression. Although some genes are continuously expressed, others are expressed only early or late during migration. Late expression relates to cell cycle progression, as driving string/Cdc25 causes earlier division of CVM cells and …

Believe In Yourself And Keep The Doctor Away: Health Self-Efficacy Mediates The Relationship Between Retrospectively Reported Adverse Childhood Experiences (Aces) And College Students’ Current Self-Reported Physical Health, Amber Sale

Psychological Science Undergraduate Honors Theses

Adverse childhood experiences (ACEs) are potentially traumatic events occurring during the first 18 years of life (CDC, 2022) and are strong predictors of later negative outcomes such as poor physical health, risky health behaviors, and poor lifestyle habits (Felitti et al., 1998; Lovis-Schmidt et al., 2022; Windle et al., 2018). Previous literature has suggested that self-efficacy may explain the negative impact ACEs have on later physical health (Sachs-Ericsson et al., 2011). Therefore, the present study examined the relationship between college students’ retrospectively reported ACEs and current self-reported physical health, in the context of health self-efficacy levels (i.e., self-perceptions of one’s …

Decolonizing Neo-Liberalism, Empowering The Local: A Global South Reading Of Noir In The 2000s., Jean-Hugues Bita’A Menye

Graduate Theses and Dissertations

This research aims at providing a Global South reading of noir in the late 1990s and early 2000s. It relies on the premise that noir, a sub-genre of crime fiction born in France during World War II, offered new avenues of literary creation and political criticism. Based on a selection of authors from the U.S., Mexico, Algeria, and Cameroon, the dissertation explores how authors from underrepresented or formerly-colonized communities discuss the impact of neoliberal thinking in their communities. With an emphasis on race and gender dynamics, nation building and terrorism, police corruption and brutality, or the growth of organized, each …