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Inflammatory Response In Ucd200/206 Scleroderma-Prone Chickens To Intradermal Injection Of Silikon 1000, Katee L. Johnson

Animal Science Undergraduate Honors Theses

Intradermal injections of silicone materials have resulted in chronic inflammation and fibrotic reactions in some individuals. The UCD200/206 line of chickens is characterized by spontaneous development of scleroderma/systemic sclerosis (SSc), a fibrotic autoimmune disease. This longitudinal study examined the cellular inflammatory activity initiated by SILIKON 1000 (a silicone product used as a filler in human skin) at the site of intradermal (i.d.) injection and in the peripheral blood in the SSc-prone UCD 200/206 (UCD) chickens and healthy White Leghorn (WL) controls. Specifically, the pulps of growing feathers (GFs) were i.d. injected with SILIKON or endotoxin-free, sterile PBS (8 and 3 …

Influence Of Gossypol From Cottonseed Meal Fed To Pregnant Sows On Seminiferous Tubule Diameters In Male Offspring, Elizabeth Callaway

Animal Science Undergraduate Honors Theses

Feral swine were first brought to the United States in the 1500s as a source of food and have been reported as an invasive species since then without an efficient method of population control. Ongoing research indicates that the total cost of the damage this species has caused estimates to around 1.5 billion dollars each year (USDA, 2023). Gossypol is a phenolic compound found in the cotton plant and can be administered in the form of cottonseed meal (CSM). Gossypol has been associated with reduced fertility in various species (Randel et al., 1992). Pregnant sows were fed cottonseed meal to …

Who’S In Control? Perceived Stress And Emotional Regulation Partially Mediate The Impact Of Adverse Childhood Experiences (Aces) On Mental Health And Life Satisfaction., Mary A. Burdan

Psychological Science Undergraduate Honors Theses

Adverse childhood experiences (ACEs) are potentially traumatic events that occur during the first 18 years of life and have a strong potential to negatively impact health and well-being in adulthood. The exploration of this connection is important because health and lifestyle behaviors have been linked to the leading causes of death in the United States. ACEs have been found to alter brain development and have been associated with mental health issues and lower life satisfaction, but information about the pathway between these connections is scarce. The present study aimed to investigate if inadequate emotional regulation and higher levels of perceived …

The Effects Of Starting Hormonal Contraceptive Use On Rumination, Abigail Brien

Psychological Science Undergraduate Honors Theses

Rumination, a cycle of repetitive dwelling on negative feelings and distress, is associated with mental health issues such as depression and anxiety. Although there is a substantial body of research on rumination and its association with depression and anxiety in women, there is a lack of studies specifically examining the role of hormonal fluctuation in this process. Changes in the menstrual cycle linked to estrogen and progesterone have been associated with mood regulation and susceptibility to depression, yet the impact of hormonal contraceptives (HCs) on rumination remains unexplored. The current study examined the role of HCs on rumination by comparing …

Poor Sleep Quality Is Associated With Decreased Structural Coherence Of Mesolimbic Dopamine Projections In Children, William A. Walker

Psychological Science Undergraduate Honors Theses

Insomnia is the second most common mental disorder that affects approximately 10% of the population. An additional one-third of the population experiences occasional symptoms of insomnia like difficulty falling asleep or staying asleep. Sleep quality is also a key indicator of overall mental and physical health; however, researchers have only begun to study the effects of the structure of the mesolimbic pathway on sleep cycle regulation and quality. Emerging research suggests that mesolimbic dopamine projections from the Ventral Tegmental Area (VTA) to the Nucleus Accumbens (NAcc) play a role in sleep-wake regulation. In this study, I analyzed data from the …

Perpetrator Nationality And Prescribed Punitiveness: The Effect Of Moral Disgust, Phoebe Fanning, Scott Eidelman, Emily Vance

Psychological Science Undergraduate Honors Theses

Does perpetrator nationality impact prescribed punitiveness, and is this relationship explained by moral disgust? White American participants (N = 243) read a fake news article about a physical assault. Perpetrator nationality was manipulated by indicating that the offender was an American citizen or in the U.S. illegally. Then, participants completed measures on prescribed punitiveness (e.g., minimum sentence for the offender), their emotional reactions toward the offender (e.g., disgusted), as well as exploratory items on patriotism, nationalism, identification with the U.S., and belief in a dangerous world. I predicted that participants in the illegal immigrant perpetrator condition would exhibit more …

Assessing The Fate Of Antibiotic Resistance Genes In Wastewater Treatment Processes, Gunter A. Campbell

Civil Engineering Undergraduate Honors Theses

The increasing need for clean water has paved the way for the creation of systems for reusing water, such as wastewater treatment plants (“WWTPs”), to provide potable water. But in recent years, such systems have raised concerns about the distribution of antibiotic resistance genes (“ARGs”). Bacteria are adapting to antibiotics by the evolution of resistance mechanisms, such as high mutation rates and horizontal transfer. The presence of ARGs, particularly tetracycline ("tetA") resistance genes, in wastewater effluents is of concern, as they can survive treatment, spread to bodies of water, and pose a threat to human health. In this study, the …

What's In It For Me? The Benefits Of Breastfeeding For The Mother, Emily H. Mcmennamy

The Eleanor Mann School of Nursing Undergraduate Honors Theses

The purpose of this systematic review was to investigate both the short- and long-term benefits that breastfeeding has on maternal physical and mental health. The PICOT question was: In postpartum mothers, how does breastfeeding compared to formula and mixed feeding affect maternal physical and mental health, including outcomes in cardiovascular health, BMI, bleeding risk, and mental health both short term and long term? For this research, EBSCOhost and the National Library of Medicine databases were searched to find relevant studies and systematic reviews. Terms such as “breastfeeding and maternal health benefits,” “breastfeeding and postpartum health,” and “breastfeeding and weight loss” …

Shortage To Surge - Studying The Post-Covid-19 Guitar Retail Market, Jed H. Kim

Data Science Undergraduate Honors Theses

The COVID-19 pandemic was one of the most catalyzing events of the 21st century, leading to supply chain disruptions, lifestyle changes, and a massive shift towards digital technologies. During the COVID-19 lockdown, many people had more free time, and over 16 million individuals learned to play guitar in the first 2 years of the pandemic. According to a study by Fender, 62% of these new guitar learners cited the pandemic as their primary reason for learning the instrument. However, pandemic policies and supply chain disruptions meant that many guitar retailers were unable to satisfy demand, and backorders accumulated. After the …

Connecting Biological Engineering Education With Hands-On Internship Experience, Lindsey Bush

Biological and Agricultural Engineering Undergraduate Honors Theses

My honors thesis examines how my time in the biological engineering program and internship experience have prepared me for my future career. It highlights the skills I developed, the lessons I learned, and how these experiences shaped my job search and career decisions.

In my thesis, I share details about my internship. I described what I worked on, the places I visited, and the hands-on experience I gained. I talk about how my coursework provided a strong foundation and how my internship allowed me to apply those concepts in real-world engineering settings. I also discuss the technical and professional skills …

Crossing The Mediterranean: The Italian Response To The Migration Situation (2014-2024), Avery F. Van Scoy

World Languages, Literatures and Cultures Undergraduate Honors Theses

As Europe increasingly mirrors aspects of its sociopolitical landscape from the first half of the 20th century, a critical examination of historical biases and identity has become imperative. The enduring myth of Italiani, brava gente, or Italians, good people, continues to shape national identity and inform attitudes toward irregular migration, contributing to a growing number of fatalities in the Mediterranean. These deaths are caused, in part, by migration policies that prioritize keeping irregular migrants from reaching Italy by outsourcing border enforcement and restricting access to resources for organizations that seek to aid vulnerable migrants. The endurance of Italiani, brava gente …

Evaluation Of Fecal Egg Counts (Fec) As A Viable Means To Estimate Ascaridia Galli, Heterakis Gallinarum And Capillaria Obsignata Burdens In Laying Hens, Alexander H. Moss

Animal Science Undergraduate Honors Theses

The control of gastrointestinal helminths, specifically Ascaridia galli, Heterakis gallinarum, and Capillaria obsignata, is a critical component of poultry health management, particularly in free-range and organic farming systems. Methods of estimating parasite burdens, such as post-mortem examinations, are not feasible for large-scale commercial operations due to their invasiveness and time requirements. This study aimed to evaluate the use of fecal egg counts (FEC) as a non-invasive and efficient method for estimating the worm burdens of these parasites in laying hens. A flock of 12 brown egg laying, spent, hens were individually penned on concrete. Fecal samples (both cecal and intestinal) …

Redefining Children’S Experience In Social Services Offices, Julia K. Bryant

Human Development and Family Sciences Undergraduate Honors Theses

The effects of childhood trauma are far-reaching and diverse, influencing physical, emotional, and mental health across a child’s entire lifetime. Research indicates that children who experience adverse childhood experiences (ACEs) such as abuse or neglect are at an increased risk for various consequences and that the environments they encounter post-trauma play a significant role in shaping their experiences. Social services offices, where many traumatized children are taken for interviews or assessments after being removed from their homes, can often become places of additional distress. This project seeks to address this issue by proposing redesigns for social services offices to create …

Fabrication And In Vitro Biocompatibility Assessment Of Composite-Coated Magnesium Materials, Bryce Williams

Biomedical Engineering Undergraduate Honors Theses

This study provides a comparative assessment of the corrosion, morphology, and biological properties of four of the most promising coating methods for magnesium in biomedical applications, namely micro-arc oxidation (MAO), graphene oxide (GO)-containing MAO coating, MAO/sol-gel composite coating, and MAO/polycaprolactone (PCL) polymer dip coating approaches. Despite the abundance of research focused on these promising approaches, there is a notable lack of comparative studies evaluating their properties. To this end, the investigated composite coatings are ZK60+MAO, ZK60+MAO/GO, ZK60+MAO/Sol-gel, and ZK60+MAO/PCL composite coating. Several tests were used to assess various properties of the prepared groups such as in vitro corrosion characteristics, surface …

Health Professional Perspectives On Sudden Unexpected Infant Death In Arkansas, Laura Hansen, Bart Hammig

Health, Human Performance and Recreation Undergraduate Honors Theses

Arkansas has one of the highest Sudden Unexpected Infant Death (SUID) rates in the nation, with 173.6 deaths for every 100,000 live births (CDC, 2024). This is much higher than the national rate, indicating a significant need for prevention education. Sudden Unexpected Infant Death is an umbrella term used to categorize Sudden Infant Death Syndrome (SIDS), unknown death causes, and accidental suffocation in bed. SUID rate reduction can be achieved by following infant-safe sleeping guidelines, which include crib use, flat and firm mattresses, no blankets, and putting babies on their backs. In this proposed study, health care professionals across Arkansas …

Characterization Of 3d Printed Microdialysis Probes For Solute Recovery And Non-Specific Adsorption, Bailey N. Scoggins

Chemistry & Biochemistry Undergraduate Honors Theses

Microdialysis is an important sampling technique that has uses in a wide range of disciplines, such as neuroscience and pharmacokinetics. 3D printing aims to address adaptability and customization issues that are present in standard “off-the-shelf” microdialysis probes. This work aims to lay the groundwork for characterizing a 3D printed microdialysis probe designed at the University of Arkansas. One experiment involved measuring solute recovery of caffeine as a function of flow rate of a standard CMA 11 probe to assess its membrane performance. The other goal was to learn about non-specific adsorption tendencies of enzymes (i.e., to what degree proteins stick …

Efficacy Of Mitophagy Inhibition As A Potentiating Agent For Conventional Chemotherapy, Morghan Relich, Shelby Bess

Biomedical Engineering Undergraduate Honors Theses

Cancer is a result of uncontrolled growth and reproduction of cells. Damaged or abnormal cells grow and multiply when they should not and in turn the cells continue to proliferate and metastasize. Malignant cells rely on functional mitochondria for proliferation, metastasis, and survival. These mitochondria maintain a functional mitochondrial network through a quality control mechanism called mitophagy. Mitophagy is a conserved intracellular process to maintain quality control and remove damaged mitochondria.

Previous research has been done to examine the effects of mitophagy in tumor cells, as well as the effects of mitophagy inhibition. One focus of current research has been …

The Effects Of Daily Beef Consumption On Sleep, Mood, And Wellbeing In Postmenopausal Women, Caroline M. Coughlin

Biological Sciences Undergraduate Honors Theses

Menopause is often accompanied by changes in sleep, mood, and overall well-being, partly due to hormonal shifts and loss of muscle mass. Protein intake, especially from nutrient-rich sources like beef, may help address these changes, but research in postmenopausal women remains limited. This study explored how daily beef consumption, as part of a higher-protein diet, affected sleep quality, mood, and well-being over eight weeks. Ten active postmenopausal women were randomly assigned to either a control group (meeting standard protein recommendations) or a treatment group consuming twice that amount, including one serving of lean beef per day. Sleep was measured using …

The Associations Of Mental Health With Academic And Exercise Procrastination, Casey L. Dang

Biological Sciences Undergraduate Honors Theses

This study examines the relationship between exercise procrastination and academic procrastination with symptoms of depression and anxiety among college students. Procrastination is commonly studied in academic settings, but limited research has looked at how various types of procrastination can impact mental health. In this study we specifically look at exercise and academic procrastination. A total of 109 undergraduate students participated by completing surveys measuring their levels of academic and exercise procrastination, as well as their symptoms of depression and anxiety. The results showed that higher levels of both academic and exercise procrastination were significantly associated with higher levels of depression …

Balancing Tradition And Tourism: Crafting An Effective Marketing Strategy For Belize's National Parks, Kyler Marie King

Marketing Undergraduate Honors Theses

This thesis reflects on a summer internship in the small town of Dangriga, Belize. The author interned at Mayflower Bocawina National Park, a role made possible through Dr. Amy Farmer and Mr. Steve Darr. While tourism plays a significant role in Belize’s economic development, communities like Dangriga remain underdeveloped in their tourism strategies. The author and her partner collaborated to design a targeted marketing plan for Mayflower Bocawina National Park, aimed at increasing visitor engagement and boosting local tourism revenue.

Morphology Of Smallmouth Bass (Micropterus Dolomieu) In Arkansas, Robert Laroche

Biological Sciences Undergraduate Honors Theses

The Smallmouth Bass, Micropterus dolomieu, is one of the most important game fishes in Arkansas. Three distinct lineages are recognized from different river basins: the Northern, Neosho, and Ouachita Smallmouth Bass. Understanding the biodiversity within this species complex inhabiting different water bodies in Arkansas is important for effective management of the fisheries resource and to guide conservation efforts. But current data on distribution of distinct forms are insufficient to guide management. The primary goals of the study presented here was to quantify morphological characteristics to identify distinct lineages of Smallmouth Bass, and to determine their specific locations within Arkansas streams …

The Prevalence Of Cytauxzoon Felis In Southern United States, Anna Haynes

Biological Sciences Undergraduate Honors Theses

Cytauxzoonosis, caused by transmission from a tick infected with the pathogen Cytauxzoon felis, is considered an emerging tick-borne disease in domestic felines. While not as fatal in other vertebrates such as the reservoir host Lynx rufus (bobcat), in domestic cats, infection is fatal nearly 100% of the time. This study sought to screen ticks pulled from felines for the pathogen across three states in an area identified as a hotspot. Out of 80 ticks screened, 12 tested positive for the pathogen. The positive population of ticks came from 3 neighboring counties in Southern Missouri: Jasper, McDonald, and Newton. McDonald …

Growth Of Methanogens Using Pyrite As An Energy Source: Implications For Life On Mars, Mckenzie K. Ragan

Biological Sciences Undergraduate Honors Theses

The search for life beyond Earth has been the motivating factor for many scientist’s research in the past and currently. Specifically, the efforts have largely been focused on Mars. Mars exhibits qualities that are similar to the life-harboring characteristics of Earth, creating the possibility for life to exist on Mars. Mars’ subsurface conditions may be ideal for specific microorganisms to thrive, providing a haven away from the harsh surface conditions (Mancinelli, 2000). It is known that one of the most important elements to support life, H₂O is found in the subsurface of Mars, along with an atmosphere lacking …

Protein Intake And The Wellbeing Of Postmenopausal Women: Investigating Sleep, Mood, And Quality Of Life, Aleesha Imran

Biological Sciences Undergraduate Honors Theses

Postmenopausal women commonly experience declines in sleep quality, mood, and overall wellbeing, with limited non-pharmacological options available to address these concerns. This randomized controlled trial investigated whether daily beef consumption as part of a higher-protein diet could improve sleep, mood, and quality of life over four weeks. Participants were randomized to either a standard protein intake control group or a treatment group consuming a high-protein diet with daily lean beef.

The treatment group showed modest improvements in subjective sleep quality and perceived health compared to controls, although these changes were not statistically significant. Fatigue, however, significantly decreased in the treatment …

The Effect Of Antemortem Tooth Loss On Craniofacial Shape In Apes And Humans, Ashley R. Laster

Biological Sciences Undergraduate Honors Theses

Antemortem tooth loss (AMTL) (i.e., defined as tooth loss occurring before death) is common among humans and many primates, and several studies have examined AMTL across various primate groups. Some research indicates that AMTL can influence masticatory function and diet; however, the effects of AMTL on craniofacial shape and biomechanics have not been extensively analyzed. We assessed craniofacial and mandibular shape in relation to AMTL, anticipating that individuals with at least one tooth lost antemortem would display significant differences in cranial and/or mandibular shape compared to those without AMTL. AMTL rates were evaluated in three primate species: wild-caught samples of …

Metabolic Responses Of Adipose-Derived Stem Cells In Collagen I Hydrogels, Caroline R. King

Biological Sciences Undergraduate Honors Theses

Peripheral nerve injury affects approximately 44 in 1 million people in the United States every year and can lead to incomplete nerve recovery and loss of motor and sensory function. A significant amount of energy is required for nerve injury repair. A lack of energy allocation to the injury site hinders repair. Current treatments include hollow nerve guidance conduits, decellularized nerve grafts, and autografts. However, they are limited by factors such as donor site morbidity and sustained immunosuppressive treatments. Using three-dimensional collagen I hydrogels laden with adipose-derived stem cells (ASCs) can assist in neural regeneration. Three-dimensional collagen scaffolds aim to …

Ecological Interactions Of Large Mammals In Luangwa, Zambia, Jahzara Osborne

Biological Sciences Undergraduate Honors Theses

The connection between mammalian behavior in national parks and human-driven environmental change outside national parks is tenuous. National parks are often considered the last vestiges of natural space, yet they are created and maintained by humans. South Luangwa National Park (SLNP) at the southern end of the East African Rift System (EARS) is a microcosm of this global problem. EARS is a biodiverse region made up of numerous smaller branches. In the Luangwa Valley, this biodiversity has been protected through conservation historically, but dynamic geopolitical forces have affected the relationship between large mammals and humans by extracting humans to create …

The Relationship Between Oxidative Stress And Partner Opposition In Conflict Resolution, Jenna Thomas

Biological Sciences Undergraduate Honors Theses

Given the inevitability of conflict in romantic relationships, understanding its biological impact is crucial for developing conflict resolution strategies that promote physical health. While many studies highlight relationship conflict’s negative effects on bodily systems, few examine how specific facets of conflict, such as opposition, impact the body. Partner opposition may contribute to oxidative stress, a biological marker associated with poor physical health, by activating the amygdala. This study investigated the association between partner opposition and oxidative stress in 126 couples expecting their first child. Participants attended a lab session where problem-solving discussions were recorded to assess oppositional behavior and urine …

Towards The Design Of A Super Fgf1-Fgf10 Chimera, Megan Brown, Suresh Thallapuranam

Biological Sciences Undergraduate Honors Theses

The Fibroblast Growth Factor family consists of 23 different fibroblast growth factors (FGFs) that are each involved in various cellular processes, including cell proliferation and tissue repair. Fibroblast growth factor receptors (FGFR) are different tyrosine kinase receptors. There are four FGFRs in the human body, each binding to different combinations of FGFs. Fibroblast growth factor 1 (FGF1) is the only FGF that can bind with all four types of fibroblast growth factor receptors. Therefore, it is the most powerful mitogen. However, FGF1 has low thermodynamic stability under the physiological conditions. Prior work in the Kumar lab has constructed several points …

The Expression Of Intestinal Tight Junction Proteins Induced By 1,25-Dihydroxyvitamin D3-Glycosides Supplementation To Reduce Bacterial Chondronecrosis With Osteomyelitis Lameness In Broilers, Kennedy M. Hicks

Biological Sciences Undergraduate Honors Theses

Bacterial Chondronecrosis with Osteomyelitis (BCO) is a leading cause of lameness in broiler chickens, impacting animal welfare and commercial poultry production. Supplementation using organic trace minerals, vitamin D, probiotics, and prebiotics has been studied to mitigate BCO lameness incidences in broiler chickens. Our previous study demonstrated that feeding Panbonis®-G-1,25(OH)₂D₃ from Solanum glaucophyllum, containing 1 µg/kg G-1,25(OH)₂D₃, to broilers for the first 28 days of their production cycle reduced BCO lameness by approximately 50%. In this study, we investigated the impact of 1,25-dihydroxy vitamin D₃ supplementation on the expression of tight junction …