Digital Commons Network^™

Dispersal Movement And Overwintering Ecology Of A Cryptic Migratory Forest Owl, Mitchell Lee Pruitt

Graduate Theses and Dissertations

Understanding species’ distributions and how a species uses its environment is a vital aspect of ecology and important for the development and implementation of conservation planning. In migratory species, with distinct breeding and nonbreeding ranges, understanding distributions is a complex endeavor. Nevertheless, evaluating movement behavior by linking seasonal distributions and identifying source areas is vital for understanding a species’ full annual cycle ecology. Understanding distributions is particularly important for predators, like birds of prey, that can exert top-down effects on community structure and ecosystem function through their influence on prey populations. Among raptors, owls are severely understudied in large part …

An Inductive Analysis Examining Factors Contributing To Student Attrition In Introductory College Chemistry Courses And Proposed Solutions., Zephaniah Daniel Greenwell

Graduate Theses and Dissertations

A grounded theory study was conducted to investigate possible methods for reducing the number of “D”, “F”, or “W” grades (DFW rate) in the 1st semester general chemistry course. Classroom observations conducted over the 2022-2023 school year resulted in a 17 questions survey that was distributed in both the fall 2023 and spring 2024 semesters with 157 total student responses. While these surveys were being collected, an interview protocol was developed for students and instructors, who have experience teaching or taking an introductory chemistry course. These interviews were conducted in the early spring 2024 semester. Ten undergraduate students, six graduate …

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 …

Hierarchical Power Converter Physical Design, Tristan Mark Evans

Graduate Theses and Dissertations

The field of power electronics is undergoing rapid advancement that is driven by the need for further electrification in all aspects of power generation and transmission, transportation, and consumer goods. Recent advances in wide bandgap (WBG) semiconductor technologies continue to push their adoption in systems with higher power densities and conversion efficiencies. However, the way in which the components of these systems are designed has not kept pace with the rapidly evolving landscape of their applications and often requires costly, manual design iteration. Therefore, new methods are needed to improve this design process. Packaging of power devices is a critical …

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 …

Understanding Young Adult Consumers’ Attitudes And Intentions Towards Showrooming Behavior, Juliana Marconi

Graduate Theses and Dissertations

With the rapid advancement in information technologies, retailers integrate omnichannel marketing strategies to provide consumers with low prices, good products, and unique shopping experiences. Omnichannel retailing brings changes to consumer decision-making processes. Consumers use all channels (online and offline) simultaneously at the same time during the product search, purchase, and aftersales stages. Some consumers prefer to check out a product in a brick-and-mortar store, but purchase it online. This is referred to as showrooming. Since the COVID-19 pandemic has increased the use of mobile devices and smartphones in shopping, consumers search e-commerce sites using mobile devices while they shop in …

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 …

The Struggle For Work-Life Balance: Quiet Quitting As A Hyper-Individualized Tool Of Neoliberal Resistance, Hanna Cashion

Graduate Theses and Dissertations

This thesis provides a critical/cultural analysis of the quiet quitting trend which took social media by storm in 2022. Quiet quitting became a popular contemporary method to resisting three hurdles of the American workforce: economic turbulence, overwhelming labor standards, and decreasing mental wellness – in hopes of achieving more work-life balance. The analysis applies Marxist theory to contemporary neoliberalism through three case studies of individuals who share their quiet quitting experience. The first chapter covers the case of a K-12 educator who prompts the analysis of out-of-pocket classroom expenses, teacher unions, and the implications for collective action in neoliberal times. …

Evaluation Of Late Season Potassium Applications To Arkansas Soybean, Carrie Ortel

Graduate Theses and Dissertations

Potassium (K) deficiency is one of the most important yield limiting factors in Arkansas soybean (Glycine max (L.) Merr.) production, although there are recently improved diagnostic and management opportunities available. However, several questions regarding the successful implementation of in-season K management in soybean production remain. Therefore, the research objectives were to (a) delineate the relationship between drought stress and K deficiency on soybean vigor, (b) identify the spatial dependencies of leaf-K concentrations at the production scale, (c) develop a leaf sampling protocol, (d) calibrate the fertilizer-K rate needed to correct varying levels of K deficiency at 15, 30, and …

Countering Antisemitism Through Education Initiatives, Mattie Adaline Harris

Graduate Theses and Dissertations

Since October 7, 2023, there has been a sharp increase in antisemitic incidents on American college campuses, highlighting the urgency for additional research on this issue. Chapter Two examines Jewish students' perspectives on freedom of speech on college campuses, using a 2022 survey of 44,847 undergraduate students on 208 campuses conducted by the Foundation for Individual Rights and Expression (FIRE, 2022). The survey reveals that Jewish students often feel inhibited in expressing their opinions due to potential reactions from peers, professors, or their campus administration. Jewish students’ comfort levels increase when there are more fellow Jewish students on campus. Additionally, …

Intervention Measures Alleviating Bacterial Chondronecrosis With Osteomyelitis In Broilers: Experimental Lameness And Feed Additive Treatments, Andi Asnayanti

Graduate Theses and Dissertations

As the global population grows, the supply and demand for meat have dramatically increased. The poultry industry has managed to satisfy the high demand for chicken meat through fast-growing broilers. The poultry breeder industry has successfully provided modern broilers with high liveability, feed efficiency, and processing yields through genetic selection of the traits of interest such as growth rate, feed conversion rate, and breast quality. Nevertheless, the intensive selection of modern broiler chickens for fast growth and feed efficiency leads to unintended side effects, such as excessive fat, low reproductive performance, leg abnormalities, low immunity, cardiovascular diseases, and metabolic disorders. …

Assessing Consumer Willingness To Pay For Zinc-Biofortified Rice – The Case Of Colombia, Sara Ann Oswalt

Graduate Theses and Dissertations

Hidden hunger, a form of undernourishment caused by micronutrient deficiencies, remains a critical global challenge affecting billions worldwide. Biofortification of staple crops, such as rice, offers a promising solution to address this problem. However, changes in the physical and culinary characteristics due to biofortification may hinder consumer acceptance and limit the benefits of this approach. This research explores consumer preferences and willingness to pay (WTP) for zinc-biofortified rice in Cartagena, Colombia. A non-hypothetical experimental auction, including 400 consumers in five different locations within Cartagena, was conducted to analyze the impact of information, socioeconomic factors, and consumer nutrition knowledge on WTP …

Cultivating Atmosphere In Independent Coffee Shops: Reflections On How Atmospheres Are Created Through Sensory Experiences, Brooke Bierhaus Sutton

Graduate Theses and Dissertations

Affective atmosphere is a fundamental component to the allure of coffee shops that is cultivated through sensory experience. In this thesis I examine how the sensory experience of sight, sound, smell, taste, and touch, create atmospheres in coffee shops. I ask, “how do coffee shops cultivate an affective atmosphere?” Through an exploration of material culture, design, affect, and the intentional production of third places, I illustrate the ways in which independent coffee shops have their own unique identities and atmospheres. By using memoir and reflexive analysis of my decade in global coffee culture, as well as an extensive literary review, …

Production And Heat Unit Accumulation Tracking Of Long-Cane Blackberry In Controlled Environments, Leala Machesney

Graduate Theses and Dissertations

Consumer demand for locally produced and high-quality blackberries is projected to increase. Most blackberry production is field-based, however, there is interest in producing blackberries using soilless culture and “long-cane” technique, where plants are grown in containers and trellised vertically. Soilless “long-cane” production of blackberries is viewed as a possible solution to the yield losses caused by soilborne pathogens such as Fusarium oxysporum, and methods of soil-borne pathogen control have become increasingly difficult with the ban of methyl bromide, a highly effective and widely used but environmentally harmful soil fumigant. Other reported benefits of soilless caneberry production include greater yields, increased …

The Expression Of Recombinant Cas9 Proteins In E. Coli Bl21(De3) Strains, Morgan Reese

Graduate Theses and Dissertations

Abstract Extensively used for genome editing, CRISPR-Cas9 is a relatively new tool that has made a major impact in the genomic engineering landscape. Due to this, the production of CRISPR proteins that are not commercially available can limit research applications. Here, we present methods for optimizing laboratory scale production of CRISPR proteins including Cas9. The method uses IPTG to induce gene expression of the specified Cas9 and nickel column purification to isolate proteins. CRISPR proteins are validated for purity by SDS-PAGE gel, western blot, and for activity by in vitro digestion. We thoroughly validate and compare the effectiveness of BL21(DE3) …

Temporal Trends And Dental Metric Variation In The Macaca Sylvanus Lineage, Cristina Stan

Graduate Theses and Dissertations

The extensive collection of fossil macaques from Europe, spanning from the Late Miocene to the Late Pleistocene period, is believed to be of the species Macaca sylvanus. However, there has been a prolonged discussion regarding the classification of these specimens into a single taxonomic group as the existing dental sample exhibits a large amount of morphological and metric variation. Specifically, researchers have attempted to identify multiple subspecies based on chronological data of the paleontological locality and, secondly, based on dental metric variation. In this study, I assess temporal trends in the fossil record of Macaca sylvanus and compare overall variation …

Narrative Harmony: The Implementation Of Sound Design And Its Immersive Nature, Patrick Joseph Kelly

Graduate Theses and Dissertations

Sound is the first tool we are given to interact with the world we inhabit. Despite this, most discussion of narrative content revolves around written and visual storytelling. This often means audio is forgotten or overlooked during the production process. A phenomenon which is especially present amongst inexperienced content creators. By combining the transportation imagery model and Narrative Paradigm theories, a formula for analyzing narratives and immersion within the modern setting becomes prevalent. This combination would then lead to the creation of a four-episode podcast series was created where each episode was mixed to highlight a different component in sound …

Automatic Appraisals Of Houses, Sloan Scroggin

Graduate Theses and Dissertations

Multiple hedonic models and an automatic appraiser model were used to create a residential house’s estimated sales price. The goal is to use the limited data available to a REALTOR® to estimate the future sales price of a residential home without the aid of pictures of the property or viewing the physical property. The first model automates some of the actions of an appraiser by finding comparable sales based on proximity, based both on distance between houses and characteristics of the houses, and then calculating a weighted average price for an estimated sales price of future sales. If the model …

Genomic Characterization Of Enterococcus Spp Infecting Chicken Embryo, Aishat Olaoluwa Lawal

Graduate Theses and Dissertations

Chicken embryo mortality has been attributed to bacterial infections and can lead to a decline in hatchability, posing potential losses in the broiler industry. This study aims to investigate the vertical transmission of specific bacterial pathogens from breeder hens to subsequent broiler flocks through MGEs and their association with host specificity. In our sampling of 360 eggs from a broiler flock, we isolated various Enterococcus species, including E. gallinarum and E. faecalis, from incubated egg yolks or aborted embryos. E. avium was found in unincubated bad yolks. Other species like Streptococcus, Lactobacillus, and Bacillus were observed but presumed to be …

The Effect Of Gentle Yoga On Average Daily Step Count, Francesca D'Agrosa

Graduate Theses and Dissertations

While walking is a widely accessible form of exercise that is highly effective at increasing overall wellness (Kadir et al., 2019; Zhao et al., 2015) and is a recommended form of physical activity for overweight and obese individuals, studies still indicate low step counts and levels of physical activity in people with obesity (Shultz et al., 2011). Sedentary overweight individuals may avoid walking for several reasons, including physiological and/or biomechanical factors that make walking more difficult. This study attempted to explore and address these avoidant behaviors by employing a single-case ABAB reversal design to implement bi-weekly gentle yoga sessions over …

Comparing Children’S Engagement In Storybook Reading With And Without Access To Aac With A Literacy Supportive Feature, Brooke Zimmerman

Graduate Theses and Dissertations

Purpose: This thesis evaluates the effects of comparing children’s engagement in storybook reading with and without access to high-tech augmentative and alternative communication (AAC) with a literacy supportive feature. Literacy skills are a fundamental cornerstone for engagement in the lives of young children. Among these skills, the ability to decode words, or phonetically sound them out, plays a pivotal role in the acquisition of literacy. Proficiency in literacy also broadens the communication capabilities of individuals with developmental disabilities who rely on augmentative and alternative communication (AAC) methods. However, existing AAC technologies currently fall short in adequately strengthening literacy development, particularly …

Describing Benefits, Challenges, And Barriers Of Offering Adolescent Programs At Public Gardens In The United States, Hiliary Rodgers

Graduate Theses and Dissertations

Research shows a lack of educational programs for the adolescent audience at public gardens in the United States. Along with benefits that adolescent programs create for the institutions that offer them, there are also challenges associated with designing programs for this specific audience, and barriers preventing public gardens from offering them. There is little research related to adolescent programs at public gardens in the United States, aside from a 2010 study by Purcell et al. that explored the benefits, challenges, and barriers of adolescent programs. The current study aimed to determine the prevalence of adolescent programs at public gardens in …

The Gravitational Wave Peep: Improved Modeling Of Highly Eccentric Emris For Lisa Signal Confusion Noise, Daniel Joseph Oliver

Graduate Theses and Dissertations

Scattering events around a massive black hole will occasionally toss a stellar-mass compact object into an orbit around the massive black hole, beginning an extreme mass ratio inspiral. The early stages of such a highly eccentric orbit will not produce detectable gravitational waves as the source will only be in a suitable frequency band briefly when it is close to periapsis during each long-period orbit. This burst of emission, firmly in the millihertz band, is the gravitational wave peep. While a single peep is not likely to be detectable, if we consider an ensemble of such subthreshold sources, spread across …

Ripperature: Crossing Gender And Genre, Gracie M. Bain

Graduate Theses and Dissertations

The murders of Polly Nichols, Annie Chapman, Elizabeth Stride, Catherine Eddowes, and Mary Jane Kelly in London in 1888 by the serial killer commonly known as “Jack the Ripper” were grotesque displays of violence against vulnerable women. As unsolved crimes, they have continuously been sensationalized and fictionalized since they occurred, beginning with dime novels like The Whitechapel Murders; Or, On the Track of a Fiend (1888) and continuing with novels like Stalking Jack the Ripper (2016). The sheer number of adaptations is staggering. This extensive adaptation process results in the mythologization of Jack the Ripper as a culture-text. This study …

Cooperating Teacher Mentorship Behaviors And Job Satisfaction As Predictors Of Agricultural Education Interns’ Intent To Teach, Sarah Frances James

Graduate Theses and Dissertations

Almost a quarter of agricultural education graduates do not teach SBAE upon graduating (Foster et al., 2024), however, this attrition has not been widely studied and reasons for this decision have not been identified. To increase the number of qualified teachers entering the classroom, the reasons for this attrition must be identified and addressed by universities. This study was conducted to investigate possible relationships between cooperating teacher mentorship behaviors, job satisfaction, and intent to teach in spring 2024 agricultural education interns. A survey, which combined the student teacher view part of Nesbitt and Barry’s (2023) cooperating teacher best practices instrument …

Evaluating The Effects Of 6-Day And 7-Day Fixed-Time Artificial Insemination Protocols Using Sex-Sorted Semen On Pregnancy In Beef Cattle, Nicole Noel Noga

Graduate Theses and Dissertations

In this study, 527 beef heifers from three locations across two states were enrolled between November 2020 and May 2021 for experiment 1, divided into three sub-experiments: 1A (n = 85), 1B (n = 383), and 1C (n = 59). These heifers were randomly assigned to one of four treatment groups. Treatments 1 and 2 involved a 6-day CO-Synch + CIDR protocol, including administration of gonadotropin-releasing hormone (GnRH; 100 μg IM; Factrel; Zoetis Animal Health, Parssipany, NJ) and a CIDR insert (EAZI-BREED CIDR; 1.38g P₄; Zoetis Animal Health) on Day 0, followed by prostaglandin F2α (PGF_2α; …

Gym Sexual Harassment And Bystander Intervention: An Application Of The Reasoned Action Approach, Eric Schisler

Graduate Theses and Dissertations

Objective. The purpose of this study was to modify and validate an instrument to examine factors associated with being an active bystander when witnessing sexual harassment at a gym or fitness center. Using Fishbein and Ajzen’s Reasoned Action Approach (RAA), this study aimed to better understand the influence of a person’s attitude, social norms, and perceived behavioral control (PBC) on their intention to be an active bystander when witness to someone being sexually harassed at the gym in the next 30 days. Methodology. This study utilized an exploratory sequential mixed methods design, with phase one taking place between June and …

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 …

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 …

Institutionalized Stigmas: Hiv Stigma, Racism And Heterosexism Among Medical Students In The Southern United States, Krishen D. Samuel

Graduate Theses and Dissertations

Background: Intersecting and related forms of stigma, including HIV-related stigma, racism, and heterosexism, disproportionately impact both communities vulnerable to acquiring HIV and people living with HIV (PLHIV), ultimately impacting more distal outcomes related to HIV prevention, treatment, and epidemiological patterns in the United States (US). The Southern US is the region most impacted by new HIV diagnoses, mainly among Black men who have sex with men (MSM). However, there is a paucity of research on medical students, specifically those in the Southern US, regarding stigmatizing attitudes they may hold towards PLHIV, and how these associate with racism and heterosexism. This …