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Modeling Sex-Specific Changes In Myocardial Fibrosis, Grace Martin

Chemical Engineering Undergraduate Honors Theses

Heart disease the leading cause of death for both men and women in the United States. Cardiac fibrosis, or accumulation of extracellular matrix proteins in the heart, can occur after a heart attack and increase the risk for further complications. Current treatments for heart disease do not include extracellular matrix regulators, partly due to the complicated signaling network responsible for the production of these proteins. By using a computational model of the signaling network in cardia fibroblasts, the relationship between particular molecules and downstream extracellular matrix production can be examined.

Biological sex is an important factor for cardiac health and …

Books As Bridges: Utilizing Multicultural Literature To Foster Connection, Representation, And Inclusivity In Student Education, Elizabeth Vega

Curriculum and Instruction Undergraduate Honors Theses

Background: Linguistic and demographic diversity is growing in classrooms across the United States however teacher demographics remain overwhelmingly composed of monolingual white women. There is great need for a bridge between cultures that honors and empowers diverse experiences. Through personal and professional experiences, I have witnessed the power of crossing cultural bridges through literature. Purpose: This study investigates the role of multicultural literature as a powerful tool to bridge cultural divides, provide authentic representation for marginalized groups, and cultivate a sense of belonging among students from various backgrounds. Methodology: This study reviewed peer-reviewed sources to gather insights into the effectiveness …

Through Undertale To Interactive Storytelling: The Effect Of Game Design On Secondary Students’ Perceptions Of Creative Writing, Terrell Page Jr.

Curriculum and Instruction Undergraduate Honors Theses

Videogames have emerged as a globally influential storytelling medium, as evinced by the success of story-driven games like Undertale, The Legend of Zelda: Breath of the Wild, and The Last of Us II. This medium needs creative writers who can learn to think like game designers. But, recognizing that not all creative writers will pursue a career in game design, this project studied the impact of thinking like a game designer on the way creative writing students approach their craft. Drawing on a variety of videogames and genres, this project focused on the potential of world-building and player choice to …

Near-Surface Soil Property Change Over Time In Two Native Tallgrass Prairies In The Arkansas River Valley, Katie Jansson

Crop, Soil and Environmental Sciences Undergraduate Honors Theses

One climate-change mitigation pathway is soil carbon (C) sequestration, which removes carbon dioxide from the atmosphere and stores C in various forms in the soil. Native prairie soils have long been known for their soil C sequestration abilities, but the full extent of their sequestration capacity is not completely understood. This study evaluated the effect of soil depth and soil map unit/prairie combination on changes in various soil properties over time from 2018 to 2022 in the top 20 cm of two native tallgrass prairie soils in the Arkansas River Valley in west-central Arkansas. Soil samples were collected from the …

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 …

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 …

Beyond The Bedroom Door: Investigating Representations Of Sex In Young Adult Literature, Amelia Gutche

English Undergraduate Honors Theses

This thesis examines representations of sex in young adult (YA) fiction, focusing on negative patterns, empowerment, and healthy relationships. Through analysis of seven YA novels and existing scholarship, three research questions are addressed: the evolution of sexual representations in the twenty-first century, patterns characterizing teenage sexual situations, and distinctions between healthy and unhealthy relationships. Findings reveal a shift toward more inclusive and empowering depictions, yet lingering conservative values and silences persist. YA literature often portrays sex as a source of fear and obsession, limiting adolescent power and perpetuating unrealistic ideals. Healthy relationships are characterized by support systems, mutual respect, and …

Potential Non-Invasive Detection Of Lesions In Broiler Femur Heads: Application Of The Dxa Imaging System, Alison Ramser, Elizabeth Greene, Robert Wideman, Sami Dridi

Poultry Science Faculty Publications and Presentations

Leg health is a significant economic and welfare concern for the poultry industry. Current methods of detection rely on visual assessment of the legs and gait scores and bone scoring during necropsy for full characterization. Additionally, the current scoring of femurs only examines the external surface of the femoral head. Through the use of the dual-energy X-ray absorptiometry (DXA) imaging system, we show the presence of a necrotic region in the femurs that would otherwise be considered healthy based on the current evaluation procedures. Importantly, these lesions were present in almost 60% (22 of 37) of femurs that scored normal …

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 …

Perceptions Of School-Based Agricultural Education Teachers Toward Promoting Agricultural Education Teaching As A Career, Emmanuel Kwadwo Sekyere

Graduate Theses and Dissertations

School-based agricultural education has experienced a scarcity of qualified teachers over the years. To reduce the prevalence of school-based agricultural teacher shortages, research has led to the adoption of several approaches in schools across the country. The purpose of this study was to examine the perceptions of school-based agricultural education teachers toward promoting agricultural teaching as a career. The theoretical framework for this research was based on the Theory of Planned Behavior. The research objectives were to determine the perceived importance of career promotion activities, the frequency of career promotion activities, the perceived job satisfaction of SBAE teachers, and the …

Determination Of Factors Influencing Microbial Food Safety Risks Of Additive Manufacturing And 3d Printing Of Food, Allyson Nichole Hamilton

Graduate Theses and Dissertations

The burgeoning field of 3D food printing introduces opportunities for customizing the physicochemical properties of food, offering tailored solutions in color, shape, and texture. Despite its potential, the implications of this technology on food safety, particularly the efficacy of manufacturer-recommended cleaning protocols for stainless steel food ink capsules, the transferability of pathogens from a contaminated food ink capsule into the food ink based on macronutrient composition of the food, and the impact of storage conditions on pathogen viability, have not been thoroughly investigated. This dissertation provides a comprehensive analysis of these aspects, focusing on the control of foodborne pathogens and …

Ꮝꮘꮝꮩꮝꮣꭲ Ꭴᏸꭷꭲ Ꮢꭹ Ꭲꮎꭸ Ꭱꭿ: Reclamation Stories Of Indigenous Graduate Students At A Native American Serving Nontribal Institution, Sky B. Wildcat

Graduate Theses and Dissertations

The experiences of Indigenous graduate students in higher education are underrecognized in research and scholarship. Similarly, the experiences of Indigenous students, undergraduate or graduate, within Native American Serving NonTribal Institutions (NASNTIs) are largely excluded from research and scholarship. Although NASNTI designation is only dependent on the Indigenous undergraduate student population at an institution, the stories shared through this research signify the importance of considering Indigenous graduate students experiences at a NASNTI. The conceptual framework consisted of four core foundations as outlined by Kovach (2021), including ᎦᏚᏩ (ga-du-wa) knowledge, relational accountability, the Indigenous community of the NASNTI, and the situating of …

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; …

Determination Of Ileal Digestible Phosphorous Values In Various Inorganic Sources Meat And Bone Meal Sources, Jay Hampton

Graduate Theses and Dissertations

Concerns around the economic and environmental consequences of suboptimal or excess dietary P levels in broiler diets has led to increased interest in determining ileal P digestibility values for feed ingredients. Therefore, two experiments (EXP) were conducted to determine the apparent (AID) and standardized ileal digestibility (SID) of P in various inorganic phosphates and meat and bone meals (MBM) using the direct method. In both EXP 1 and 2, ileal samples were collected at 22 d post-hatch from birds fed semi-purified diets based on dextrose and corn starch containing test ingredients and one N and P free (NPF) diet for …

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 …

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 …

Exploring The Effects Of Mindful Nature Walks On College Student Anxiety, Grace Young

Graduate Theses and Dissertations

Individuals pursuing a degree in higher education face challenges that lead to greater levels of anxiety than that of the general U.S. adult population. This disparity, further heightened by the COVID-19 pandemic, presents a need for higher education institutions to search for ways to address this spike in student anxiety and other mental health concerns. This mixed-methods study explored mindful nature walks as a low-cost and easily accessible way for college students to reduce levels of experienced anxiety. Using validated quantitative measures, this study examined the impact of three weekly, consecutive 30-minute mindful nature walks on state and general anxiety …

International Special Projects Internship--Mauritius, Jace Reese

Supply Chain Management Undergraduate Honors Theses

This thesis explains my international internship in Mauritius. During the internship, we surveyed Mauritian residents to help them battle food insecurity using the USDA's food security survey. Food security is very prevalent in our world, especially after COVID. Included are the results as well as what we learned from surveying the residents.

Navigating The Black Nuances: Analyzing And Understanding The Intersectional Perspectives Of Black Transgender Arkansans Utilizing Maslow's Hierarchy Of Needs, Kayla Alford

Graduate Theses and Dissertations

This thesis evaluates the current needs of the Black Transgender community in Northwest and Central Arkansas. The participants of this study were asked 40 questions based on each tier of Maslow’s Hierarchy of Needs. The participants of the study were three Transgender men, two Transgender women, and three non-binary individuals. Eight semi-structured interviews were completed utilizing narrative theory to expound on the personal experiences and duality of being Black and Transgender through a personal lens. The findings of this study were categorized into eight themes, which were basic needs, safety, love and belonging, esteem, self-realization, essence of being Transgender, lack …

Evaluation Of The Effect Of A Commercial Lippia Origanoides Essential Oil Extract On Salmonella Serovar Enteritidis As A Natural Alternative To Antibiotics In The Poultry Industry, Abdiel Atencio

Graduate Theses and Dissertations

The purpose of the present research was to evaluate the bactericidal activity of a microencapsulated Lippia origanoides essential oils (LOEOs) against Salmonella Enteritidis (SE) in an in vitro crop assay and in a prophylactic broiler chicken model using three low doses of the product: 75 ppm, 150 ppm and 300 ppm. Two trials of each assay were conducted. Day-of-hatch male Cobb-Vantress broiler chickens were randomly allotted to one of four groups: 1) positive control group; 2) 75 ppm LOEOs group; 3) 150 ppm LOEOs group; 4) 300 LOEOs group. Chicks were fed and watered ad libitum in heated brooder batteries …

Heterogenous Impacts Of Pathogenic Avian Diseases On Global Poultry Production, Elsbeth Hamilton

Graduate Theses and Dissertations

Globally, poultry is one of the most versatile and cost-effective sources of animal-based protein. Due to its wide variety of uses and variability of growing styles, poultry production is applicable in nearly every country. With the increase of scale and concentration of production, pathogenic diseases have decreased the efficiency of production through worsened feed conversion, morbidity, and mortality. In addition to physiological health, climate largely impacts the suitable conditions for growing. With more extreme climate events, locations once ideal for poultry are less efficient due to increased resource cost. This analysis seeks to determine the heterogeneity of production and the …

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 …

Guaraní Sexuality And Contestations Over The Old Way Of Being, Robert Miles Berry

Graduate Theses and Dissertations

The Jesuits in seventeenth century Guairá attempted to shift the sin of adultery and polygyny away from Guaraní men, and onto Guaraní women in their process of evangelization in Paraguay. The Jesuits did so because Guaraní men, as influential patriarchs within the missions, would revolt against the Jesuits or flee the Jesuit missions in response to Jesuit indoctrination that denounced the practice of polygyny. This is evident through two works of the Jesuit Antonio Ruiz de Montoya: one lexical, the Tesoro, and the other narrative, the Conquista. Montoya was directly involved in the founding and maintenance of the Guaraní missions, …

In-Service Needs Of Selected Arkansas Agriculture Teachers Related To Precision Agriculture Systems, Henry Ofosu Akwah

Graduate Theses and Dissertations

Precision Agriculture (PA) entails the use of computer technology, including software and hardware, together with good agronomic practices to effectively utilize resources available to growers. PA may enhance profitability, sustainability, resilience, and efficiency when implemented successfully. The aim of this study was to identify, assess, and describe the PA in-service needs of selected high school agriculture teachers in Arkansas. Forty-four teachers participated in the study, recruited through convenience sampling during the annual Arkansas agriculture in-service workshop held at Camp Couchdale in July 2023. A survey instrument was developed, and all forty-four participants provided complete responses. The survey included twenty-nine PA …

A Sublethal Concentration Of Chlorine Induces Antibiotic Resistance In Salmonella Via Production Of Reactive Oxygen Species, Mohammed Aljuwayd, Israa Abdullah Malli, Steven C. Ricke, Young Min Kwon

Poultry Science Faculty Publications and Presentations

Studies have shown that the production of reactive oxygen species (ROS) is triggered by bactericidal antibiotics, which contributes significantly to the killing of bacterial cells and increasing mutations in surviving cells. In this study, we hypothesized that exposure of Salmonella to sublethal concentrations of hypochlorite (NaOCl), a commonly used sanitizer in household and food industries increases mutation rates, leading to the development of antibiotic resistance. We found that a sublethal concentration (20 ppm) of NaOCl increased the mutation rates of S. typhimurium 14028s significantly (p < 0.05), which was prevented by the ROS scavenger thiourea, supporting that the increased mutation was due to NaOCl-triggered ROS production. We further found that the exposure of S. typhimurium 14028s to the same sublethal concentration of NaOCl increases resistance to kanamycin among the 3 antibiotics evaluated. The results of this study suggest that when NaOCl applied as a sanitizer fails to kill Salmonella due to diluted local concentrations or presence of organic materials, it can cause an adverse outcome of developing antibiotic resistance of the pathogen.

Exploring The Potential Of Soy-Based Materials: Sustainable Textile Design And Apparel Production, Kasandra Wright

Bumpers Research Symposium

The textile industry is a significant contributor to environmental degradation, particularly through water, energy, and chemical pollution. Soy-based materials offer a sustainable alternative due to their biodegradability, renewability, and reduced water and chemical usage compared to traditional textiles. However, the potential of soy materials in fashion design remains largely unexplored. This project aimed to investigate the feasibility and aesthetic potential of soy-based materials in fashion design, with a focus on creating sustainable soy textiles using batik techniques.

The completed soy textile design showcased a moth motif crafted through batik techniques. Vibrant colors and a distinctive texture were achieved through wax …

In Vitro And In Vivo Fermentation Models To Study The Function Of Dietary Fiber In Pig Nutrition, Weikang Huangfu, Hexi Cao, Shouren Li, Shuhang Zhang, Mengqi Liu, Boshuai Liu, Xiaoyan Zhu, Yalei Cui, Zhichang Wang, Jiangchao Zhao, Yinghua Shi

Animal Science Faculty Publications and Presentations

The importance of dietary fiber (DF) in animal diets is increasing with the advancement of nutritional research. DF is fermented by gut microbiota to produce metabolites, which are important in improving intestinal health. This review is a systematic review of DF in pig nutrition using in vitro and in vivo models. The fermentation characteristics of DF and the metabolic mechanisms of its metabolites were summarized in an in vitro model, and it was pointed out that SCFAs and gases are the important metabolites connecting DF, gut microbiota, and intestinal health, and they play a key role in intestinal health. At …

Laughter And Effective Presidential Leadership: A Case Study Of Ronald Reagan As The 'Great Communicator', Patrick A. Stewart, Reagan G. Dye, Carl Senior

Political Science Faculty Publications and Presentations

Former United States President Ronald Reagan’s use of media and his charismatic connection with viewers earned him the moniker “the great communicator”. One aspect of his charisma, the influence of elicited laughter, during a highly critical 5-minute news story by CBS reporter Leslie Stahl during the 1984 US presidential election is examined here. Two experiments examining the effects of audience laughter on perceptions of charismatic leadership are reported. In the first experiment the effects of audience laughter in response to Reagan’s comments were investigated. Here, Reagan’s perceived warmth as an effective leader significantly diminished when strong laughter is removed, whereas …

Winners And Losers: Emotional Shifts Across Elections Are Conveyed By A Politician’S Smile, Carl Senior, Patrick A. Stewart, Erik Bucy, Nick Lee

Political Science Faculty Publications and Presentations

The human smile can convey both rewarding and affiliative social intent and thus has significant utility in politics, where the ability to bond with and reassure voters is vital to electoral success. We examine experimental evidence from the 2019 UK general election to investigate the influence of a politician’s reward or affiliative smile on voter emotions. It was hypothesised that the winner’s affiliative smile would engender positive affect across all partisan groups compared to the winner’s reward smile display. Participants from a nationally representative sample were shown campaign footage containing both types of smiles from the leaders of the main …

Evaluating Supplementation Programs For Growing Calves Grazing Bermudagrass Pastures, A. M. Womack, Beth Kegley, Shane Gadberry, T. Hess, D. Hubbell, P. A. Beck

Animal Science Faculty Publications and Presentations

Objective

Materials and Methods