Digital Commons Network^™

Trade-Off Between Limonene & Geraniol-Based Reprocessable And Non-Reprocessable Epoxy Thermosets: Role Of Aliphatic Diamines In Polymer Networks Design, Priyankkumar Kanubhai Patel

Electronic Theses & Dissertations

The growing demand for sustainable materials, driven by environmental concerns and the rapid depletion of fossil fuels, has garnered significant attention in the fabrication of bio-based epoxy thermosets as renewable alternatives to petroleum-derived thermosetting polymers. The present study focuses on the synthesis and characterization of epoxy prepolymer resins derived from limonene and geraniol via a two-step process, followed by the fabrication of thermally cross-linked flexible epoxy thermoset films using various traditional aliphatic diamine curing agents, namely 1,2-ethylenediamine (EDA), 1,4-butylenediamine (BDA), and 1,6-hexamethylenediamine (HDA). Additionally, the incorporation of cystamine, a disulfide-containing diamine, enabled the formation of a covalent adaptable network through …

Kid Eats App: Supporting Parents And Children Cooking Together, Amy S. Muise, Gabrielle A. Longo, Pamela N. Martinez, Umekia R. Taylor, Linda E. Torv, Barbara A. Chamberlin

Journal of Extension

Kid Eats is a free app for iPad encouraging children and parents to cook together at home using fruits and vegetables. A preliminary study with parents and children showed children enjoyed using the app and that it provided useful information to support children’s involvement in the kitchen, including guidance around safety concerns. Every family in the study voluntarily completed at least one of the recipes with their child at least once following the in-person activity. Parents reported that their children actively asked to cook the recipes from the app and felt the app helped increase their time spent cooking with …

Stress-Related Phenotypic Differentiation Identified By Motivational Behaviors In Male Mice, Renee A. Brummels

Honors Thesis

Social stress substantially contributes to psychological disorders, including anxiety, depression, and post-traumatic stress disorder. Recognizing these disorders affect millions, it is essential to understand social stress’s impacts on behavior and how these behaviors vary among affected populations. We address these questions through a social defeat/avoidance paradigm, the Stress-Alternatives Model (SAM), which demonstrates defeat (Stay) and avoidance (Escape) responses across species, including fish, rats, hamsters, and mice. Avoidance of social conflict in the SAM is possible by utilizing escape routes for smaller test mice during aggressive interactions. Additionally, measurements of SAM motivational behaviors, like time near and nose pokes into escape …

06.16.2025 Ored Connect, Liz Williamson

ORED Newsletter

Email address Matters with SPAN and ARC Forms

Participant Support Costs training for PIs available in Blackboard

Assessing One-Year Health Impacts From Wildfires In Rural Communities: Roles For Extension In Promoting Wildfire Preparedness And Recovery, Marc T. Braverman, Sandi Cleveland Phibbs, Emily Jane Davis, Amanda Rau, Elijah Penner

Journal of Extension

Wildfires can produce health impacts that persist for years in affected communities. This article describes an Extension-led study of health impacts in rural Oregon communities one year after a destructive wildfire. Data collection included key informant interviews (n=36), an online survey (n=80), and three focus group interviews with survivors (n=23). Mental health, exposure to contaminants, physical stress, food insecurity, and other issues were frequently identified health concerns. Survivors’ difficulties in dealing with housing displacement significantly exacerbated health challenges. We describe potential roles for Extension in addressing wildfire risk and mitigating health impacts, including a description of the Oregon Fire Program.

Monoclonal Antibodies Targeting Candida Disrupt Biofilms And Inhibit Growth Across Global Clinical Isolates, Jonothan Rosario-Colon, Karen Eberle, Hong Xin

School of Graduate Studies Faculty Publications

Candida species are a major cause of severe fungal infections, particularly in immunocompromised individuals and hospitalized patients. Among these, Candida auris stands out as an emerging “superbug”, responsible for life-threatening bloodstream infections with mortality rates up to 60%. This multidrug-resistant, hospital-acquired pathogen has been declared a serious global health threat, complicating effective treatment and increasing mortality risks. Our research has identified universal monoclonal antibodies (mAbs) targeting Candida albicans cell wall epitopes, which are highly homologous to those in other pathogenic Candida species, including C. auris. Passive transfer of mAbs—C3.1 (anti-β-1,2-mannotriose) and 9F2 (anti-phosphoglycerate kinase 1)—significantly extended survival and improved fungal …

Are We Ready For Ai-Augmented Generalists?

Faculty, Staff and Student Publications

Artificial Intelligence (AI) is reshaping medical practice and education by unifying the knowledge of medical specialties and subspecialties into a single, intelligent system. This system functions not only as an integrated knowledge base but also as an active cognitive collaborator. By bridging knowledge gaps beyond the capacity of any individual clinician, AI could enable physicians to function as AI-augmented generalists who can perform certain tasks that require specialist training. These generalists may help mitigate care fragmentation, but realizing their potential will require significant changes in medical education.

Effects Of Different Forms Of Dietary Zinc On Weaned Steers When Fed Prior To Weaning, Christopher Lane Addison

Theses and Dissertations

Zinc (Zn) is crucial for many life sustaining processes within the body. Additional Zn is known to be beneficial during certain periods of increased stress. Weaning is one of the most stressful periods of beef calves’ lives. Due to this it was hypothesized that additional zinc in an organic form would increase weight gain and immune response compared to additional zinc in an inorganic form or no added zinc. No differences were found for ADG, Th score, IgG concentration, or mineral concentration among treatments. However, there was a novel and unexpected finding when there was no difference found in preweaning …

Effects Of Environmental Stress And Antimicrobials On The Health, Microbiome, And Product Shelf-Life Of Channel And Hybrid Catfish, Guyue Tang

Theses and Dissertations

Two studies investigated various aspects of channel and hybrid catfish production and processing. The first study examined the effects of ammonia stress (15 mg/L vs. 1 mg/L control) on growth performance and fillet quality. While channel catfish demonstrated superior growth, ammonia stress minimally impacted the sensory profiles of both species. Gut microbiota analysis revealed species-specific differences, with Lactococcus lactis dominating hybrid catfish communities. The second study evaluated buffered vinegar treatment (1.5%) on fillet shelf life during refrigerated storage. Vinegar-treated fillets maintained better microbiological quality, with aerobic plate counts remaining below 7 log cfu/g through day 6, while untreated fillets exceeded …

The Effects Of Ataxin-1 Overexpression In The Central Nervous System On Specific Behavioral And Physiological Characteristics Of Drosophila Melanogaster, Sydney Davis

Theses and Dissertations

Spinocerebellar ataxia type 1 (SCA1) is a dominantly inherited neurodegenerative disease caused by a CAG repeat expansion in the ataxin-1 gene, which results in an abnormally long polyglutamine tract. Similarly, overexpression of wildtype Ataxin-1 (wt-Atx-1) in Drosophila melanogaster leads to neurodegeneration, reduced lifespan, and impaired negative geotaxis. Observations include disruptions in sleep-wake cycles, increased oxidative stress biomarkers (like protein carbonyls), and dysregulation of developmental genes such as armadillo (arm) and nemo kinase (nmo). Additionally, elevated expression of SUMOylation-related genes (Aos-1, Uba2, and dSmt3 or dSumo) and increased SUMO protein levels indicate enhanced SUMOylation in the brain. Quantitative analysis of neuronal …

Evaluating The Efficacy Of Functional Feed Additives In Broilers With Or Without A Live Coccidiosis Vaccine Challenge, Dalton Gerard Dennehy

Theses and Dissertations

Functional feed additives, such as probiotics, prebiotics, and phytogenics, have seen increased usage in commercial poultry production due to their ability to improve growth performance, meat yield, and overall health status. Therefore, the objective of this research was to evaluate the efficacy of functional feed additives in broilers with or without an enteric challenge induced via a live coccidiosis vaccine (LCV). In the first study (Chapter II), broilers were raised on used litter without an LCV challenge and fed varying levels of a multi-strain Bacillus-based probiotic in the starter phase (1x or 2x dose). Reduced performance was observed in early …

Impact Of An Automated Brush System On Intensively Managed Lactating Dairy Cattle Behavior, Production, And Stress Physiology, Allison Lyn Griffin

Theses and Dissertations

The dairy industry has increasingly prioritized improving animal welfare for intensively housed cows. This study evaluated the effects of environmental enrichment (EE) using an automated brush system on stress physiology, behavior, and productivity of lactating dairy cows. Fifty-nine pregnant and lactating dairy cows were divided into two groups: CON (no brush) and TRT (automated brush system). Saliva samples were collected to measure cortisol concentrations, and behaviors were monitored in the morning (07:00 h - 11:00 h) and evening (19:00 h - 23:00 h) using high-resolution cameras. The results indicated that cows with brush access had lower cortisol concentrations, suggesting reduced …

Exploring Sexual Dimorphism In A Drosophila Melanogaster Model Of Spinocerebellar Ataxia Type 1, Madelyn Hunter

Theses and Dissertations

Neurodegenerative diseases affect over 36 million people and are characterized by loss of motor control, neuronal degradation, and behavioral changes. The most common of these diseases exhibit sexually dimorphic effects. In this study, Spinocerebellar ataxia type 1 (SCA1) was modeled in the Drosophila central nervous system using the yeast hybrid UAS/GAL4 system. Locomotor activity and clock gene expression was monitored for male and female SCA1 and control flies. Clock genes such as per, tim, Clk, and cyc were monitored over a 24-hour period using qRT-PCR, and distinct sexual dimorphism was detected in locomotor activity and in gene expression for SCA1 …

Evaluating The Use Of Translucency Score As An Effective Parameter Of Eggshell Quality, Cassidy Autumn Morris

Theses and Dissertations

The objective of this thesis was to determine if an egg’s translucency score (TS) could be used as an effective predicting parameter to determine eggshell quality in both broiler breeders and commercial laying hens. In broiler breeders, it was determined that TS could be used as an effective predicting parameter for eggshell thickness (P< 0.001) and L* scores (P< 0.001). It was also found that the supplementation of organically sourced trace minerals could significantly decrease the TS of eggs, resulting in a better-quality eggshell (P< 0.001). In two different aged commercial laying hen experiments, there was no conclusive evidence for TS to be a predictive parameter of eggshell quality throughout the storage period. It was found, however, that the storage period did significantly increase the TS throughout storage in both experiments (P< 0.001).

The Effect Of X-Ray Irradiation Technology On Salmonella Spp. And Quality Parameters Of Ready-To-Bake Chocolate Chip Cookie Dough, Kala Grace Morris

Theses and Dissertations

Salmonella contamination in cookie dough poses a threat to consumers. This study investigated the effect of X-ray irradiation on Salmonella-inoculated ready-to-bake chocolate chip cookie dough and its impact on dough quality. A Salmonella cocktail (~10 log CFU/g) was prepared and inoculated into cookie dough samples (~6.5 log CFU/g) and then treated with X?ray irradiation (0.25, 0.5, and 1 kGy). Salmonella decreased by 1.15, 1.79, and 2.49 log CFU/g, at an exposure of 0.25, 0.5, and 1 kGy, respectively. Quality parameters (pH, aw, and colorimetry) were evaluated for two brands. No statistical difference (P>0.05) in pH was observed for Brand …

Ecology And Management Of Alligatorweed (Alternanthera Philoxeroides) And An Associated Thrips Biological Control Agent (Amynothrips Andersoni), Samuel Alec Schmid

Theses and Dissertations

Alligatorweed (Alternanthera philoxeroides), native to South America, is a highly invasive aquatic macrophyte that is globally distributed and particularly problematic in the southeastern United States. In the United States, alligatorweed management has a long history, particularly of chemical and biological control. Alligatorweed management saw early success with a South American flea beetle (Agasicles hygrophila), but this agent’s utility has waned. Despite the long history of alligatorweed invasion, several important research questions remain, and the research in this dissertation seeks to answer some of these questions. This research focuses on multiple and diverse aspects of alligatorweed biology, ecology, and management: (1) …

Combined Effect Of Chitosan And Lemon Essential Oil-Infused Slush Ice On The Shelf Life Of Channel Catfish, Dianna Wilson

Theses and Dissertations

The objective of this research was to investigate the biopreservative effects of chitosan and lemon essential oil in slush ice treatments on the microbial shelf life of refrigerated catfish fillets. Catfish fillets were stored in slush ice treatments containing chitosan (CH), lemon essential oil (LO), a combination (CH+LO), water (CTRL), and no slush (NS) for three d at 4 C, then stored at 4C for twelve d post-slush. The growth of background microflora in catfish fillets treated with CH and CH+LO was reduced (P<0.05), maintaining total aerobic counts below 4.5 log CFU/g, while the control reached spoilage levels (>7 log CFU/g) by Day 6. Chitosan effectively extended the microbial shelf life but lowered pH, …

Myxozoan Diversity And Life Cycles In Catfish Production Ponds In Mississippi, Usa, Ethan Woodyard

Theses and Dissertations

Catfish aquaculture is a critical industry in the United States and Mississippi in particular. The industry is beset by depredation, rising feed costs, competition with imports, and loss to disease. Chief among these is the myxozoan parasite and causative agent of proliferative gill disease, Henneguya ictaluri. In chapter 2, novel molecular markers for greater resolution in species identification of these parasites are provided, allowing more robust life cycle inference, species-level identifications, and inference of evolutionary relationships through molecular phylogenetic analyses. Chapters 3–5 apply the approaches developed in Chapter 2 to a broad array of taxa beyond catfish-infecting Henneguya spp. These …

Evaluating The Feeding Value Of Almond Hulls And The Supplementation Of Carbohydrases On Performance, Egg Quality, Nutrient Digestibility And Intestinal Health In Lsl-Lite Hens, Nelly Giovanna Cribillero Chuquihuaccha

Theses and Dissertations

Almond hulls (AH) are a by-product of the almond nut processing rich mainly in insoluble fiber. Addition of fiber in the diet has been shown positive results in performance in poultry. However, scientific literature on the use of AH in poultry is limited. The objective of this dissertation was to determine the effect of the supplementation of ground AH and cellulase-xylanase carbohydrase enzyme (E) inclusions on performance, egg quality, ileal nutrients digestibility, jejunum gene expression and ceca microbiota of Lohmann LSL-Lite pullets and laying hens from 0 to 70 weeks of age. Chapter I describe the knowledge on the composition …

Assessment Of Pagp Gene Function In Avian Pathogenic Escherichia Coli Pathogenicity Using Different Challenge Models, Hailey Fugate

Theses and Dissertations

Avian pathogenic Escherichia coli (APEC) is a leading cause of morbidity and mortality in poultry, contributing an estimated $40 million in annual losses in the U.S. broiler industry alone, and contributing to growing concerns over antibiotic resistance. This study investigated the role of the pagP gene, which encodes a lipid A palmitoyl transferase involved in immune evasion, using both a broiler chick and embryo challenge model. Deletion of pagP significantly reduced mortality and lesion severity in broilers, indicating its role in APEC pathogenicity. However, in embryos, pagP deletion had minimal effects on survival and bacterial colonization, suggesting alternative virulence mechanisms …

Evaluation Of Broiler Performance And Processing Metrics Through Sodium Bisulfate Application To Litter And Varying Inclusions In Feed, Samantha Suzanne Plocher

Theses and Dissertations

Poultry producers must continuously evaluate current practices and determine new ones to further optimize broiler production. Sodium bisulfate (SB) is used as a poultry litter amendment (SBL), but also in human food to control pH; thus, initiating interest for SB in feed (SBF) for performance and gut health benefits. This thesis utilized common diets varying in SBF (Chapters II and III) and SBL (Chapter II; SBL1- d 0 and SBL2 – d 0 and 18) to optimize 40 d broiler performance, litter quality, and d 41 processing metrics. For Chapter II, d 0 SBL1 dramatically lowered litter pH, while minimally …

Exploring Sustainable Biopolyesters: Synthesis From 1,4-Butanediol And Aliphatic Diacids, Vinashkumar Jayantibhai Chaudhari

Electronic Theses & Dissertations

In this thesis, we applied 1,4-butanediol, which is an emerging biobased and low-cost monomer, was synthesized with a series of aliphatic dicarboxylic acids, namely succinic acid, adipic acid, and sebacic acid using melt polycondensation to Biobased polyesters. The resulting polymers poly(butylene succinate) (PPeS), poly(butylene adipate) (PPeA), and poly(butylene sebacate) (PPeSe) chemical structures were analysis through Fourier transfer infrared spectroscopy(FT-IR), ¹H nuclear magnetic resonance (NMR) revealed the elimination of side reactions in the obtained polyesters. Differential scanning calorimetry (DSC) was employed to analyze physical properties, and the impact of dicarboxylate chain length and long short diol on crystalline structure and …

Climate Resilience For Organic Vegetable Growers In The Midwest: Views, Needs, And Priorities Of Technical Service Providers, Natalie Hoidal, Greta Gramig, James Dedecker, Nicholas Frillman, Katie Black, Sarah Hayward, Rue Genger

Journal of Extension

As organic vegetable production becomes increasingly important in Upper Midwest food systems, Extension programs and partners must rise to the challenge of supporting growers with climate resilience. These growers are uniquely vulnerable to climate impacts, and addressing this challenge requires a networked approach. We report on a needs assessment and social network analysis process with technical service providers across the region to define the challenges, needs, and opportunities for building individual and institutional capacity to address climate change with growers. Results highlighted several focus areas, including improved communication, better access to funding, sound information, and cultural appropriateness.

Reaching Tomorrow’S Extension Customer: A Food And Health Needs Assessment, Morgan Szczepaniak, Sarah L. Francis, Ruth Litchfield, Ulrike Genschel, Shannon Coleman, Anirudh Naig

Journal of Extension

The food and health needs and preferences of Iowans (n=452) were examined. The leading food and health information sources were online platforms, social media, and print media. Program topics with high participation likelihood were cooking, food preservation, food safety, and gardening. Short, low-cost, online programs were preferred. Extension use was more likely among those who identified as persons of color, Hispanic/Latino, or were food insecure (p < 0.030). Those with less education and chronic disease were less likely to be interested in Extension programming (p < 0.040). These results provide valuable information regarding future directions for Extension programming.

High Kynu Expression Is Associated With Poor Prognosis, Keap1/Stk11 Mutations, And Immunosuppressive Metabolism In Patient-Derived But Not Murine Lung Adenocarcinomas, Ling Cai, Thomas J Rogers, Reza Mousavi Jafarabad, Hieu Vu, Chendong Yang, Ana Galán-Cobo, Edwin J Ostrin, Johannes F Fahrmann, Jiyeon Kim, John V Heymach, Kathryn A O'Donnell, Guanghua Xiao, Yang Xie, Ralph J Deberardinis, John D Minna

Faculty, Staff and Student Publications

Background/Objectives: We aimed to discover genes with bimodal expression linked to patient outcomes, to reveal underlying oncogenotypes and identify new therapeutic insights in lung adenocarcinoma (LUAD).

Methods: We performed meta-analysis to screen LUAD datasets for prognostic genes with bimodal expression patterns. Kynureninase (KYNU), a key enzyme in tryptophan catabolism, emerged as a top candidate. We then examined its relationship with LUAD mutations, metabolic alterations, immune microenvironment states, and expression patterns in human and mouse models using bulk and single-cell transcriptomics, metabolomics, and preclinical model datasets. Pan-cancer prognostic associations were also assessed.

Results: Model-based clustering of KYNU expression outperformed median-based dichotomization …

A Description Of Mental Health Policies In Ohio Secondary Schools, Laura L. Harris, Molly Rowe

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

OBJECTIVE To compare secondary school mental health policies implemented for the student body with those implemented for student athletes.

Athletic Trainers Confidence In Evaluating And Treating Emergent Conditions, Andrea Cripps, Jenny Toonstra, Sara Stiltner

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

OBJECTIVE The profession of Athletic Training (AT) has undergone a substantial educational overhaul in the last decade, adding more advanced knowledge and skills than ever before. With more than 50% of the profession having obtained their certification more than 10 years prior,¹ it is essential that we understand the varying levels of confidence in evaluating and managing these new skills, so that appropriate continuing education opportunities can be developed to bridge any gaps that may be identified. The purpose of this study to examine self-reported confidence in evaluating and managing acute care skills.

Sternocleidomastoid Syndrome In A Collegiate Basketball Athlete: A Case Study, Sara Stiltner, Rob Whitehurst, Eric Avers

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

BACKGROUND
20-year-old male basketball athlete with recurring upper and lower extremity instability injuries presented fall 2021 with shoulder and ankle instability. A past medical history of thermal capsulorrhaphy from high school with surgical intervention May 2021 (college first year). October 2021 athlete began experiencing rotator cuff strains in both shoulders. November 2021, December 2021, January 2022 athlete experiences recurrent right ankle sprains. Each ankle sprain resulted in two weeks of lost participation, followed by one week of active participation. The third ankle sprain associated with increased swelling and pain over medial ankle. Upon referral and MRI a deltoid ligament sprain …

Causes Of Athletic Trainer Attrition: A Critically Appraised Topic, Mckenna E. Tuttle, Klevione D. Brown, Elizabeth A. Starns

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Athletic Training (AT) attrition has been a persistent issue within the profession for years^1,2. By identifying the factors contributing to the attrition rates among Athletic Trainers, targeted interventions can be developed to mitigate turnover and decrease attrition within the profession.

Kinematic Analysis Of Lower Extremity Movement Patterns During Functional Tests In Collegiate Track And Field Runners To Predict Injury Incidence, Maddie Hoyt, Brooke Parker, Bailey Weise, Andrew Busch

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

OBJECTIVE
Lower extremity overuse injuries are becoming increasingly more prevalent in endurance-based running sports^1,2,3,4,5,6. These injuries negatively impact an athlete’s sports performance and increase the risk of additional injuries^3,4. The purpose of this study was to first examine kinematic and kinetic variables within distance runners and compare those with previous lower extremity injuries to those without reported injuries; and second to understand if such variables predicted future injuries sustained throughout a track season.