Digital Commons Network^™

Working Alongside People With Disabilities: Their Impact And Value, Alice A. Jensen

Graduate Theses and Dissertations

U.S. policies such as the Workforce Innovation and Opportunity Act of 2014 and the Americans with Disabilities Act support the inclusion of adults with disabilities in all areas of employment. Through WIOA, the federal government required public entities to provide training and help job seekers with disabilities access high-quality, competitive, integrated employment in the labor market. Nevertheless, two-thirds of unemployed PWDs report wanting employment but cannot find a job. Negative perceptions held by employers and hiring managers and their views that PWDs lack abilities create barriers to employment. In contrast, research has also shown that coworkers can greatly influence successful …

Investigations Into The Expansion Of Breslow-Type Intermediate Reactivity Via Radical C-N Bond Homolysis, Jacklyn J. Kubik

Graduate Theses and Dissertations

The Breslow intermediate is a key intermediate in catalytic transformations like the benzoin condensation and Stetter reaction. These intermediates were first postulated by Ronald Breslow in 1958. Since then, a number of researchers have sought to prove their existence and expand upon the reactions possible using these intermediates. In the sixty plus years since this intermediate was first postulated the reaction scope has expanded significantly, Breslow and breslow-type intermediates have expanded to encompass benzothiazoles, imidazoles, benzoimidazoles, triazoles, thiadiazoles, diamino type structures, and most recently pyridine structures. The expansion of these reactions has opened up new avenues of exploration and previously …

Well-Being Behaviors And Outcomes In Arkansas Teachers: A Qualitative Analysis Of Teachers In Arkansas During The Covid-19 Pandemic, Ashton Elizabeth Human

Graduate Theses and Dissertations

Introduction: The COVID-19 pandemic introduced new challenges to teachers and emphasized those already existing in the education system. The increased reliance upon technology and lack of administrative support perceived during distance learning led to lower levels of commitment to teaching and increased levels of teacher burnout. Burnout risk is associated with an increased workload, exhaustion from job demands, cynicism toward the professional community and has been shown to have a negative relationship with well-being. Teachers experiencing burnout are unable to establish positive relationships with students, understand students’ needs, stay in contact with trends in the education field, or provide pedagogically …

Using Aac To Build Young Beginning Communicators’ Inclusion In Song Routines, Sydney Miller

Graduate Theses and Dissertations

The present study examined the effectiveness of augmentative and alternative communication (AAC) on preschool-aged beginning communicators’ ability to participate linguistically during song social routines. The AAC used during the intervention phase were visual scene displays (VSDs). VSDs are color-realistic photos, often depicting real people, that are context-rich for the user. VSDs are less demanding and offer the user a way to communicate their thoughts, feelings, or emotions in a more contextualized way. The present study used a multiple-baseline across participants approach. The primary dependent measure was the linguistic participation of each participant using the VSD. The results indicated that each …

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 …

Three Years Of Abrahamic Accords: A Contemporary Episode Of False Peace, Wael Abdelhafez

Graduate Theses and Dissertations

The Abrahamic Accords mark the latest phase in the peace negotiation efforts concerning the Arab-Israeli conflict. Through diplomatic maneuvers, temptations, and promises, the United States managed to persuade four Arab countries to depart from the principles of the Arab Initiative and instead sign the Abrahamic Accords, establishing full normalization treaties with Israel. Many other countries and significant powers maintain divergent perspectives on the Abrahamic Accords. After three years, The Accords offer numerous potential economic, security, and strategic benefits, with Israel standing to gain the lion's share. This thesis explores the connection between the Frustration-Aggression Theory and the ongoing violence in …

Navigating Transitions: Utilizing Autoethnographic Writing Prompts To Support Nontraditional College Students, Brijet Lynn Beazer

Graduate Theses and Dissertations

This study explores the transition nontraditional students undergo as they embark on their college journey and the unique challenges they face. Leveraging autoethnographic writing prompts as an intervention strategy, the project employed a participatory approach over virtual platforms to capture the tapestry of experiences and connect participants to form a supportive community. Participants included older individuals with work experience, some who experienced parenthood, or those returning after an extended break. Through crafted prompts, individuals shared their academic journey, balancing work, and family responsibilities. The reflections gathered provide valuable data, offering insights into the challenges and triumphs of nontraditional students. The …

Geochemical Analysis Of Basement Rock As A Potential Metal Source In Mississippi Valley-Type Ores, Southern Midcontinent U.S.A., Mackenzie Moorhead

Graduate Theses and Dissertations

Mississippi Valley-Type (MVT) ores are epigenetic, sedimentary hydrothermal base metal deposits that exist worldwide with type localities in the midcontinent United States. These Permian-aged sulfide ores represent an extraordinary concentration of economic metals, Pb and Zn. Ore deposits occur in vast districts that have a rich mining history. The Pb and Zn from these deposits account for 24% of worldwide reserves. The geologic processes responsible for MVT ore genesis are not fully understood, especially the sourcing of ore constituents. In the midcontinent, the Ouachita Orogeny expelled saline hydrothermal brines in response to high rates of subsidence. These fluids migrated through …

A 10 Kv Sic Mosfet Power Module With Optimized System Interface And Electric Field Distribution, Xiaoling Li

Graduate Theses and Dissertations

This dissertation introduces a holistic and systematic design methodology tailored to the 10 kV silicon carbide (SiC) MOSFET power modules to achieve multi-objective optimization with enhanced electric-field (E-field) distribution, minimized common-mode (CM) parasitic capacitance, and reduced system-level parasitic inductances. The proposed approach encompasses two innovative techniques: 1) an electric-potential-oriented module-system interface to reduce system-level parasitic inductance while maximizing insulation capability; 2) stacked substrates with patterned middle layer copper to alleviate the E-field concentration at the triple-point and reduce the maximum E-field without compromising on thermal resistance. The effectiveness of these innovative approaches is substantiated through the development of a 10 …

The Constant String Of Crises: A Critical Discourse Analysis Of Twitter Responses To Celebrity Crisis Communications, Megan Willman

Graduate Theses and Dissertations

Celebrity crises are more prominent in today’s social-media-fueled world than ever before. Public relations teams are hired to handle these instances on behalf of the celebrity, but no one can control the discourse that ensues on social media. The end goal of these teams is to restore trust and reputation with stakeholders and fans. Although there have been many studies on crisis communications, there are few studies thus far that have examined the strategy as well as the discourse of such timely crises. The public figures included in this paper are Ashton Kutcher, Lizzo, Luke Combs, Mila Kunis, and Taylor …

Perceptions Of Families, Students, And Teachers On Iep Engagement For Families And Students Of Color During Junior High And Senior High School Iep Conferences, Amillia K. Oswalt

Graduate Theses and Dissertations

This phenomenological study explored the experiences of families and students of color and their teachers during junior high and high school IEP meetings. This study, informed by DisCrit, explored the similarities and differences of families, students, and teachers during IEP meetings as well as the use of research-based practices designed to increase family engagement for culturally diverse families. Participants completed surveys and participated in interviews about their experiences. The student’s most current IEP was also reviewed to determine the ways in which teachers document family and student engagement within the IEP document. The major themes identified were that research-based practices …

Derived Jet Schemes And Arc Spaces, And Arithmetic Arc Space Representability, C. Eric Overton-Walker

Graduate Theses and Dissertations

Associated to a given scheme X one can define geometric and arithmetic notions of jet schemes and arc spaces. We develop a construction of the geometric jets and arcs in the setting of derived schemes and explore consequences thereof. In particular, we prove an analogous theorem to that of one by Tommaso de Fernex and Roi Docampo concerning the cotangent sheaves of geometric jets and arcs. Our version then produces many subsequent results which allow us to prove stronger versions of results concerning geometric jets and arcs by removing unnecessary hypotheses. Separately, we explore evidence as to why, in contrast …

Towards Side-Channel Infrastructure For Software Implementations Of Pqc Algorithms, Tristen Teague

Graduate Theses and Dissertations

Post-Quantum Cryptography (PQC) is a new class of asymmetric cryptography algorithms that are supposed to be secure against both classical computers and quantum computers through Shor’s algorithm. Since PQC algorithms are currently being standardized, they will replace older standardized asymmetric algorithms (such as RSA) and will be deployed within the digital infrastructure. Before implementations of the PQC algorithms are placed into the infrastructure, they must undergo evaluation of both performance and security. One such security issue that needs large investigation before deployment are side-channels. Side-channel attacks (SCA) are a method of gathering information from the implementation, such as power-consumption and …

Identifying Grassland Cores In The Southeast: Relating Spatial Covariance To Avian Communities And Vegetation Structure, Lauren L. Berry

Graduate Theses and Dissertations

Globally, grasslands are declining in range, which is leading to a decline in grassland-dependent taxa. These declines can be attributed to a variety of issues, a major one being the encroachment of woody species into historic grasslands. There is a new framework for strategizing grassland management, referred to as “Defend the Core,” which calls for proactive management of intact grasslands, meaning conserving remaining grasslands by preventing woody encroachment in the first place. To successfully defend the core, it is imperative that we develop rapid methods to identify intact grassland cores for management priority. One method that can be used for …

Effects Of Varied Fertilization, Tillage, And Supplementation Strategies On Grazing Steers And Wheat Pasture Performance, Cody Everett Gruber

Graduate Theses and Dissertations

The objectives for the two experiments were to determine the impact of nitrogen (N) fertilizer rate, establishment method through no-till (NT) or clean-till (CT), and supplementation on stocker, wheat stand, and economic performance. Within study 1, 24, 1.62-ha pastures, were used over a two-year period. Pasture treatments consisted of a combination of N fertilization rate (100.88, 134.5, or 168.12 kg/ha), applied as broadcast urea and split between two equal applications of 50% at planting and the remaining 50% in the spring when daytime average temperatures trend above 10°C, and of NT establishment or CT establishment. Steers were weighed on arrival, …

Genome-Wide Association Study/ Genomic Prediction Of Cowpea Seed Protein And Black Seed Coat Color In Cowpea, Yilin Chen

Graduate Theses and Dissertations

Cowpea (Vigna unguiculata [L.] Walp) is a crucial crop in many regions, serving as a vital protein source for humans and livestock. Addressing the need to enhance its nutritional quality and make it easier to cultivate cowpeas of specific colors, this study utilized genome-wide association studies (GWAS) to identify markers associated with protein content and seed coat color patterns in cowpea.

In the protein content study, a GWAS was conducted on 161 cowpea accessions using 110,155 high-quality single-nucleotide polymorphisms (SNPs). Seven significant SNP markers were identified, all located at a locus on chromosome 8 associated with the gene Vigun08g039200, enhancing …

Fabrication And Characterization Of Black Phosphorus Terahertz Photoconductive Antennae, Katie Michelle Welch

Graduate Theses and Dissertations

Advancements in terahertz (THz) imaging systems, particularly for applications like post-surgical analysis of breast cancer, have led to the exploration of novel materials such as black phosphorus as the active material for a THz photoconductive antenna (PCA). This thesis, motivated by innovative techniques developed at the University of Arkansas, investigates the potential of black phosphorus as a material to enhance the performance of THz PCAs, focusing on generation efficiency and bandwidth. Previous implementations of BP as THz emitters have shown limitations, highlighting the need for thorough material characterization and optimized fabrication processes. Therefore, we adopted a dual-phase approach to this …

The Interplay Of Chronic Alcohol Misuse And Facial Recognition Abilities, Morgan Wilson

Graduate Theses and Dissertations

Both perpetrators and eyewitnesses of a crime have often been found to be under the influence of alcohol. While research has been conducted on the short-term effect of alcohol on eyewitness memory and lineup performance, little research has investigated the long-term effects of chronic alcohol misuse on facial recognition abilities. The current study investigated the effect of alcohol misuse on facial recognition and whether duration of misuse contributed to this effect. Participants (n = 370) completed an online survey which consisted of a well-tested facial recognition paradigm plus several surveys pertaining to individual differences of interest. We found race match …

Affinity-Enhanced Microdialysis Using Covalent Organic Frameworks (Cofs) Applied To Various Non-Steroidal Anti-Inflammatory Drugs (Nsaids) And Their Metabolites, Kehinde Adedeji Olubanjo

Graduate Theses and Dissertations

Microdialysis is a valuable tool in neurosciences and pharmaceutical sciences, aiding research in drug-related areas. However, it faces a notable limitation in sampling hydrophobic analytes due to their adherence to the probe materials brought about by non-specific adsorption, thereby reducing relative recovery or overall extraction. In this work, two affinity agents, polydimethylsiloxane (PDMS) beads suspended in sodium dodecyl sulfate (SDS) surfactant and covalent organic frameworks I(COFs) were employed as affinity agents in microdialysis for the extraction of hydrophobic drugs. When PDMS beads were employed as affinity agents, at the flow rate of 1 µL/min the relative recovery of both the …

Exploring The Intersection Of Masculinity, Mental Health, And Mass Shootings, Kaitlyn Campbell

Graduate Theses and Dissertations

Few studies have explored how intersecting challenges to masculinity and mental health can precipitate mass shootings. This study examines how responses to strained masculinity and mental health disorders combine across varying situational and social contexts to explain why and how offenders commit mass shootings. Data come from the U.S. Extremist Crime Database, Bias Homicide Database, and other open-source data on mass shootings. Drawing from Allison and Klein’s (2021) concept of “strained masculinity”, this study utilizes a qualitative narrative approach to uncover themes of strained masculinity and mental health issues among perpetrators of mass shootings. Different storylines emerge capturing ways some …

Evaluation Of Protein Turnover, Lipid Turnover, And Calcium Utilization On Broiler Breeder Performance, Cole Umberson

Graduate Theses and Dissertations

Broiler breeder performance is based upon egg production. Breeders are reared from day of hatch to ovulation with the main goal of controlling body weight. Maintaining body weight in breeders is highly emphasized prior to first egg as to reach optimum peak production feeding increases dramatically to meet energy needs. Energy is supplied to the breeder in three forms carbohydrates (fast energy), protein (medium energy), and fat (slow energy). Carbohydrates are quickly used by the breeders, while protein is constantly being utilized by the breeder for growth and egg production, fat is stored and used lastly as the energy requirements …

As You Lay There In Your Blood, Eden Shulman

Graduate Theses and Dissertations

As You Lay There in Your Blood is a novel consisting of six interconnected stories, as well as a novella. The novel follows Levi Sterne, a Jewish bodybuilder in rural Colorado, who deals with issues surrounding mental illness, family history, and the legacy of trauma. The novel explores themes of religion—particularly contemporary modes and forms of Judaism—as well as the relationships people develop from traumatic and difficult pasts. The novel follows Levi from his childhood and details the moment at which, at age 15, he’s abandoned by his mother. The stories then follow other important moments in Levi’s life, including …

Exploring Diversity, Discrimination, And Performance Dynamics, George Agyeah

Graduate Theses and Dissertations

This dissertation utilizes empirical and experimental approaches to investigate the multifaceted factors that affect decision-making in economic contexts. The three chapters place a particular focus on group affiliation, perceived discrimination, and the gender gap in entrepreneurship. The first chapter explores the impact of team diversity on economic decision-making within a dynamic context. Through a series of laboratory experiments involving participants randomly assigned to teams, the study examines how team diversity influences individual behavior and performance. Results indicate that team diversity significantly affects individual behavior, with newcomers being particularly influenced by the diversity of the team they join. The findings underscore …

High Bandwidth Hybrid Current Sensor Readout Interface For Power Applications, Asma Mahar

Graduate Theses and Dissertations

High-density and power-efficient circuits have become realizable with the advent of wide bandgap semiconductor devices due to their high switching speed and lower conduction/switching losses. The operation of these circuits requires current information for protection, monitoring, and control. For the realization and a further boost in the efficiency of such power circuits, small size, non-invasive, high bandwidth current sensors with noise immunity, accuracy, and linearity are required. Various hybrid sensors have been reported to meet the requirements of emerging power circuits. A combination of a magneto resistor or Hall sensor and a coil is used to cover a wide frequency …

Exploring The Barriers To Mental Health Treatment Among Justice-Involved Women Living In The U.S.-México Border Region, Rebekah Ruth Adair-Russell

Open Access Theses & Dissertations

For women in the criminal justice system, mental illness is a complicated and prevalent factor, with rates ranging from 49.2% to 67.9% (Bronson & Berzofsky, 2017). To address the mental health care that justice-involved women need, scholars have called for a closer examination of barriers that hinder access to mental health and substance use treatment among this population (Winham et al., 2015; Wilfong et al., 2021). Barriers to treatment can be attitudinal (i.e., stigma and fear) or structural (i.e., transportation, cost of treatment), yet few, if any, studies have examined how these barriers present in a group of justice-involved women …

Analyzing The Impact Of Oil And Gas-Contaminated Fluids On Soil In Eddy And Lea Counties Using Sequential Extraction, Mary Adu-Gyamfi

Open Access Theses & Dissertations

The study investigates the impacts of oil and gas-contaminated fluids on soil within the context of Eddy and Lea Counties in New Mexico, the United States. The increase in oil and gas operations has led to enormous wastewater production that is handled, stored, and transported, leading to thousands of spills yearly. The continuous and accidental release of this wastewater poses several risks to the environment due to its high levels of hazardous pollutants. Several studies were conducted on how to reduce the contaminants; however, the impact caused on the environment and the fate of the spilled fluids is unclear due …

Bcl2 Mediated Targeted Drug Delivery For The Treatment Of Kidney Fibrosis And Stomach Cancer, Humayra Afrin

Open Access Theses & Dissertations

Apoptosis, the programmed death of cells, is primarily regulated by a delicate balance between pro-apoptotic and anti-apoptotic signals. The Bcl-2 (B-cell lymphoma 2) family of proteins acts as anti-apoptotic agents, promoting cell survival. Dysregulation of these proteins is a common occurrence in conditions such as cancer and fibrosis, where overexpression of anti-apoptotic members can foster tumor cell survival and fibroblast activation. In this study, our aim was to explore the therapeutic potential of Bcl-2 inhibitors, both as a small molecule (specifically Navitoclax (Navi)), inhibitor and as Bcl-2 siRNA, for targeted treatment. Intravenous administration of Navi often leads to thrombocytopenia, necessitating …

Nationwide Practices And Perspectives On Early Literacy Activities In Daycare, Analaura Amador

Open Access Theses & Dissertations

No abstract provided.

In-Between Frame Generation For 2d Animation Using Generative Adversarial Networks, Francisco Arriaga Pazos

Open Access Theses & Dissertations

Traditional 2D animation remains a largely manual process where each frame in a video is hand-drawn, as no robust algorithmic solutions exist to assist in this process. This project introduces a system that generates intermediate frames in an uncolored 2D animated video sequence using Generative Adversarial Networks (GAN), a deep learning approach widely used for tasks within the creative realm. We treat the task as a frame interpolation problem, and show that adding a GAN dynamic to a system significantly improves the perceptual fidelity of the generated images, as measured by perceptual oriented metrics that aim to capture human judgment …

The Role Of Soft Infrastructure In Developing Sustainable Volunteer-Based Healthcare For Transient Migrants In The El Paso-Ciudad Juárez Border Region, Daniel Avitia

Open Access Theses & Dissertations

No abstract provided.