Digital Commons Network^™

Examining The Direct And Mediating Relationship Between Immigration, Family Structure, And Crime: A Community-Level Analysis., Obed Asare

Graduate Theses and Dissertations

ABSTRACT Amidst debate about immigration into the United States, many in the public and varying levels of government have questioned its impact on vital social institutions of social control. Public perception often associates immigrants with increased crime, though empirical research reveals a consistently null or negative association at the community-level. Scholars have proposed that immigrants contribute to community revitalization and foster social control, at least some of which may be tied to the ways that immigration reshapes aggregate family structures across the community. However, few empirical studies examine this important relationship. The current study aims to bridge this gap in …

Analysis And Construction Of Artificial Neural Networks For The Heat Equations, And Their Associated Parameters, Depths, And Accuracies., Shakil Ahmed Rafi

Graduate Theses and Dissertations

This dissertation seeks to explore a certain calculus for artificial neural networks. Specifically we will be looking at versions of the heat equation, and exploring strategies on how to approximate them.

Our strategy towards the beginning will be to take a technique called Multi-Level Picard (MLP), and present a simplified version of it showing that it converges to a solution of the equation (^∂/_∂t u_d ) (t, x) = (∇² _x u_d)(t, x).

We will then take a small detour exploring the viscosity super-solution properties of solutions to such …

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 …

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 …

Primary Care Employees' Knowledge And Self Efficacy About Human Trafficking, Mollie Zehmer

Graduate Theses and Dissertations

Human trafficking is a worldwide issue that is detrimental to individuals, families, and communities. However, it is a hidden issue, and without proper training, it goes unnoticed. Many primary care employees do not know much about trafficking or how to identify trafficked persons, but with proper training they could potentially help clients that are trafficked persons. The purpose of this quasi-experimental study was to determine if human trafficking training would increase primary care employees’ knowledge and self-efficacy about human trafficking. The training included topics such as general knowledge, risk factors, identifiers, and the role of healthcare employees. Participants in the …

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 …

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 …

Erased From The Curriculum: Studying The Role Curriculum Plays On Students Political Attitudes At The University, Julie Jann Gallagher

Graduate Theses and Dissertations

University curriculum shapes political identity. Most studies focus on secondary education, overlooking the influence of university curriculum and its effect on students’ political attitudes. For this study, I examine the curriculum of three classes: American Government, African American Studies, and Astronomy. I argue that exposure to race-specific curriculum shapes racial identity. The results will suggest that students who take non-race-specific courses are more likely to support racially neutral and colorblind (White Nationalist) attitudes. I argue that curriculum affects students’ political attitudes.

A Comparative Examination Of Background Attributes, Criminogenic Factors, Status Changes, And Preparatory Activities Across Ideological And Non-Ideological Mass Shootings, Brynn Schuetter

Graduate Theses and Dissertations

The overall focus of this study is the relevance of extreme ideology as a distinguishing factor underlying the motivational circumstances of mass shootings in the United States over the last few decades. Along with comparatively examining the lethality of mass shootings, background attributes, criminogenic factors, status changes, and preparatory activities are compared across ideological and non-ideological mass shooters. Data are extracted from the Extremist Crime Database (ECDB), the Bias Homicide Database (BHDB), and Schildkraut’s Database on Mass Shootings. Results highlight key differences in offenders’ experiences of personal status changes and engagement in preparatory activities prior to committing mass shootings. These …

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 …

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, …

The Effect Of Microbial Bile Acid Metabolism On Clostridium Perfringens Virulence, Tahrir Jatli Alenezi

Graduate Theses and Dissertations

Clostridium perfringens is a predominant intestinal pathogen affecting both humans and animals, including chickens resulting in significant economic losses. In chapter I, I have overviewed the dynamics of the intestinal immune system, the composition of the intestinal microbiome, and how the microbiome influences inflammation in the development of Clostridium infection. The intricate interplay between immunity, microbiota, and their metabolites is likely critical in the pathogenesis of C. perfringens and uncovering these interactions may unveil new avenues for prevention and treatment. The objective of this chapter is to provide updated insights into the role of host-microbe interactions and their potential therapeutic …

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. …

High-Power Dc-Dc Transformer For Medium-Voltage Grids With High-Voltage Sic Technology, Roderick Gomez

Graduate Theses and Dissertations

The objective of this dissertation is to present the theoretical analysis, design process, application and manufacturing of a proposed solid-state transformer intended for medium-voltage applications with minimal high-frequency oscillations. Galvanic isolation on medium-voltage DC-DC converters tend to employ large number of turns in the high voltage side of the transformers leading to non-negligible parasitic stray capacitances which form resonance tanks with the transformer inductances. Therefore, it is critical to estimate these parasitic capacitances to avoid severe high frequency oscillations which can significantly impact the converter performance. The main contribution of this thesis is the extension of a proposed custom-core design …

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, …

The Educator Labor Market In Times Of Change: Lessons From The Covid-19 Pandemic, Andrew Mitchell Camp

Graduate Theses and Dissertations

The COVID-19 pandemic placed an undeniable burden onto the teaching profession which already faced levels of prestige and interest at 50-year lows. The strains of the pandemic resulted in educators reporting higher levels of job-related stress and burnout and exacerbated concerns about potential teacher shortages. This dissertation leverages administrative data from Arkansas to better understand challenges facing the teacher workforce following COVID-19 and evaluate two increasingly policies aimed at the teacher workforce. In the first chapter, I provide evidence that teacher turnover was relatively stable during the first two years (2020-21 and 2021-22) of the COVID-19 pandemic before a notable …

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 …

Migration And Breeding Ecology Of King Rails (Rallus Elegans) In Southeast Arkansas, Jessica Schmit

Graduate Theses and Dissertations

King Rails (Rallus elegans) are a secretive marsh bird species of conservation concern in Arkansas. Freddie Black Choctaw West WMA in southeast Arkansas has multiple confirmed pairs of breeding King Rails and offered an opportunity to investigate King Rail migration ecology, as well as nesting ecology and nest site selection. In Chapter 1, we determined migratory status (resident vs. migratory) and described seasonal movement. To do this, we captured and outfitted 23 birds with Argos GPS tags to track migration patterns throughout the season. We found that most of the population did not make long distance migrations but instead were …

More Than A Monolith: Three Essays On The Diverse Journey Of Immigrant Students And Their Postsecondary Outcomes, Rian Rinaldi Djita

Graduate Theses and Dissertations

For many years, the United States (U.S.) has been the country with the largest number of immigrants. As a result, policy about immigrant students’ success becomes crucial since it carries not only ethical implications but also economic and societal implications. While there have been other alternatives for students’ success, such as Career and Technical Education (CTE), undeniably, college is still seen as a common pathway to success (e.g., Choi, 2015; Heckman et al., 2018; Turner, 2004). Unfortunately, there are several gaps in the literature on immigrant students’ success and postsecondary outcomes. First, while there is an increasing number of immigrants …

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 …

Exploring The Potential Of Electromagnetic-Driven Energy Technologies In Preventing Microbial And Aflatoxin Contamination Of Grains, Abass A. Oduola

Graduate Theses and Dissertations

Electromagnetic-driven energy such as infrared (IR) technology holds great potential in deactivating Aspergillus flavus spores and prevents aflatoxin B1 (AFB1) contamination. Aflatoxins, highly toxic secondary metabolites primarily produced by Aspergillus species within the Flavi section (A. flavus, A. parasiticus, and A. nomius), pose substantial health risks to both humans and animals due to their significant toxicity and carcinogenic properties. Detecting and quantifying the presence and proliferation of these harmful fungi on food materials can be achieved by measuring the concentration of ergosterol. Ergosterol is a sterol compound produced in the cell membranes of fungi during their growth, providing …

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 …

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 …

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 …

Advancing Qualitative Inquiry In Agricultural Communications: An Analysis Of Theories, Methodologies, And Standards For Quality, Karli Yarber

Graduate Theses and Dissertations

This dissertation offers a deep dive into the evolving landscape of qualitative research within the field of agricultural communications. Through a trio of research articles, this research critically assesses the application of theories, methodologies, and standards for quality across studies published in six disciplinary journals from 2003 to 2023. The first manuscript explores the theoretical frameworks guiding qualitative research in agricultural communications, uncovering a diverse but scattered theoretical underpinning with Framing, Diffusion of Innovations, and Uses and Gratifications Theory emerging as the most prevalent. The second manuscript meticulously examines the methodologies employed, revealing a growing acceptance and application of qualitative …