Digital Commons Network^™

Effects Of Tourist Feeding On The Gut Microbiome And Ecophysiology Of Endangered Northern Bahamian Rock Iguana (Cyclura Cychlura), Erin Lucy Lewis

All Graduate Theses and Dissertations, Fall 2023 to Present

The lifespan and reproduction of an animal depends on maintaining a healthy physiology. The proportion of individuals that survive to an age at which procreation can occur is important to long-term stability of populations and contributes to species survival. Health in an animal is measured in a variety of ways, including through monitoring of the body’s physiological systems, as well as its ability to respond to invading pathogens, and through the different types of bacteria present in the gut. Relationships among those different health metrics have been discovered in recent years and have been found to play important roles in …

Characterizing Metabolic Flux Of Plant Secondary Metabolites From Diverse Animal-Source Foods To Humans, Muhammad Ahsin

All Graduate Theses and Dissertations, Fall 2023 to Present

There is a popular saying: “You are what you eat.” But does this also mean, “You are what your food eats”? This dissertation explores that question by examining how farming practices shape the nutritional quality of meat—and what, if anything, those differences mean for the people who consume it. While modern livestock production and nutrition research often emphasize protein and fat, this work tests the idea that animals function as biological mediators, linking soil and plant conditions to human diets through the chemical composition of meat and milk. To evaluate this hypothesis, we tracked health-relevant plant compounds— phytonutrients—across the soil–plant–animal–human …

Evaluation Of Fertilizer Recommendation And Soil Amendment Impacts On Crop Production In The Intermountain West, Megan Baker

All Graduate Theses and Dissertations, Fall 2023 to Present

Fertilizers improve crop yield and quality by supplying crops with essential nutrients, but can also be a significant input cost. Determining what nutrients and rates to apply for optimal crop growth can be difficult, leading many growers to use external sources for these decisions. Land-grant universities are a common source for fertilizer recommendations, but often based on decades-old research and should be evaluated periodically to verify effectiveness and calibrated to current soil analysis methods. Current Utah State University (USU) guidelines for sulfur (S) and zinc (Zn) were tested across Utah in on-farm trials in 2021-2025. Zinc applications of 5 or …

The Rodent Electronic Nicotine Delivery System (Rends): Effects Of Age On Self-Administration Of Inhaled Nicotine In Female Rats, Daniel Santos Da Silva

All Graduate Theses and Dissertations, Fall 2023 to Present

Smoking tobacco is the leading avoidable cause of death and drives many health problems. Nicotine, the main chemical in tobacco products, keeps people using it. This study used the Rat Electronic Nicotine Delivery System (RENDS), an inexpensive and freely shared, to examine e-cigarette use in adolescent and adult female rats by exploring four phases of nicotine delivered and not delivered to understand use patterns among ages. Our study found that both adolescent and adult female rats chose to inhale nicotine when given the opportunity, showing drug-seeking behavior. Overall, nicotine use was similar between ages. These results could help inform therapies, …

Influence Of Predation Risk On Elk Feeding Behavior In A Multi-Predator Environment, Rosemarie C. Pugh

All Graduate Theses and Dissertations, Fall 2023 to Present

Sometimes predators don’t just affect prey by killing them, they can also change how prey behave. For example, animals may spend more time watching for danger and less time eating, which could affect their health and survival. In Yellowstone National Park, past research has suggested that elk may reduce feeding because they are trying to avoid predators like wolves and cougars. However, most previous studies have only looked at elk behavior during the daytime and have often looked at responses from single predators rather than multiple.

In this study, I used high-resolution tracking collars equipped with motion sensors to directly …

Food-Form Delivery Of Spore-Forming Probiotics As An Alternative To Gavage In Animal Models, Aubreyona Faith Migliori Skalka

All Graduate Theses and Dissertations, Fall 2023 to Present

Western dietary patterns are characterized by nutrient-poor, calorie-rich diets and have been linked to poor health outcomes and gut inflammation phenotypes. Probiotics are often taken to support gut health, but many beneficial bacteria do not survive transport through the digestive system to produce any effect. Spore-forming bacteria, such as Bacillus coagulans, are more resilient due to their hardy outer coat which aids in survival through many obstacles encountered in the gastrointestinal tract, including acidic stomach conditions. In research studies, probiotics are usually given to mice through a procedure called oral gavage, where a tube is used to deliver the …

Production Of Hydrolyzed Lactose Syrup From The Acid Whey, Aubrey Jean Arbon

All Graduate Theses and Dissertations, Fall 2023 to Present

Acid whey has gained significant attention within the dairy industry due to its complex matrix and the processing challenges. This by-product contains lactose that can be isolated, hydrolyzed, and further processed to produce hydrolyzed syrup. To optimize lactose utilization, it is essential to fine-tune the kinetics of the β-galactosidase enzymes used for lactose hydrolysis. To analyze sugars in acid whey, and LC-MS-based chromatographic method was developed. Once the method was developed, the kinetics of β-galactosidase were optimized with respect to enzyme concentration, pH, and temperature. The goal was to achieve the highest possible lactose hydrolysis. The hydrolyzed acid whey was …

Analysis Of The Effects Of Astaxanthin On Human Colorectal Cancer Cells, Kara A. Walters

Theses/Capstones/Creative Projects

Astaxanthin (AXT) is an antioxidant carotenoid that is produced by the microalgae Haemococcus pluvialis. This supplement is best known for its potential health benefits including anti-inflammatory, antitumor, immunomodulatory, anticancer and antidiabetic activities. Astaxanthin is marketed as an oral dietary supplement and is widely used in the nutraceutical industry as well as a coloring agent in the food industry. Since Astaxanthin has been increasingly popular as a dietary supplement, cytotoxicity is relevant to consumer exposure. Obtaining the IC50, the concentration that inhibits 50% of cell growth, is important to find how Astaxanthin may interact with cancer, and this can be found …

Observation And Reflection Of Neighborhood And Community 2026: Education, Employment And Nutrition Needs And Reflection, Ninotchka Valdez, Tyler Forbes, John Pirau, Rachel Perez-Cruet, Nicholas Durand, James Ha, Annie Liang, Willa Roberts

Patient Education Projects

No abstract provided.

Unruly Boards: Abrogating The Separate Duty Of Obedience In Nonprofit Organizations, Andrew Faul And Dr. Muthusami Kumaran

Barry Law Review

This Article examines whether the duty of obedience should remain a separate fiduciary duty in nonprofit governance. While traditionally recognized alongside the duties of care and loyalty, the duty of obedience has become increasingly impractical and largely redundant in modern nonprofit law. The Article argues that obedience is better understood as a foundational principle underlying other fiduciary duties rather than an independent obligation. Ultimately, it advocates for eliminating the duty of obedience as a standalone duty while preserving its role in promoting accountable and mission-driven nonprofit governance.

Caribbean Sea Fan Health And Disease: Investigating Aspergillosis At Cayos Cochinos, Honduras, Jayden Ponsford

Theses & ETDs

Coral reefs represent one of the most biologically rich environments on the planet, providing habitat, protection, and resources for numerous marine species. Soft corals, particularly gorgonians, are essential to reef health by providing environmental services such as habitat, food, and nutrient cycling. However, these organisms are increasingly threatened by environmental stress and disease, including the fungal pathogen Aspergillus sydowii (Bainier & Sartory Thom & Church 1926), which commonly infects Gorgonia ventalina and G. flabellum (sea fans). They are eukaryotic organisms belonging to the kingdom Animalia, phylum Cnidaria, class Anthozoa, order Alcyonacea, family Gorgoniidae, and genus Gorgonia. In this study, I …

Soft Life Or Survival? The Digital Rebranding Of Black Womanhood In Online Culture, Elizabeth Revangil

Communications and Digital Media Theses

This thesis examines how Black women are using digital media, specifically the popular social media platform, TikTok, to redefine femininity through the soft life SOFT LIFE OR SURVIVAL 2 movement. Historically, Black womanhood has been tied to strength, resilience, and survival, leaving limited space for softness and emotional vulnerability. This tends to create unrealistic expectations, and an undeniable societal pressure on Black women to perform. In recent years, social media has created opportunities for Black women to challenge these expectations and present alternative definitions of the Black women identity, reshaped around peace, emotional well-being, and softness instead of strength. Using …

Modeling Structural Supports To Facilitate Novel Treatments Of Degenerative Disc Disease, Luis Calderon

Honors Theses

No abstract provided.

From The Field To The Sidelines: Student-Athletes’ Transitions Into Coaching, Lais Leonardo Martins

Theses & ETDs

This study explores the transition from student-athlete to coach and examines how athletic experiences shape individuals’ motivations, leadership philosophies, and identity development. Drawing on qualitative data from semi-structured interviews with current and former student-athletes, as well as the researcher’s own experience, this research analyzes how individuals navigate the shift from competitive sport to leadership roles. The findings highlight the central role of athletic identity in shaping the transition process, as many participants experienced challenges redefining their sense of purpose after leaving competition. Coaching emerged as a key pathway that allows former athletes to maintain their connection to sport while transforming …

Effects Of Early Life Karenia Brevis Exposure On Bottlenose Dolphin Calves In Sarasota Bay, Florida, Elizabeth Fry

Theses & ETDs

Harmful Algal Blooms (HABs) have increased in frequency, intensity and geographic distribution in the past several decades. Florida is an epicenter for an HAB, commonly referred to as red tide, caused by the algal dinoflagellate Karenia brevis, which produces the neurotoxin brevetoxin. Acute exposure to brevetoxin causes respiratory distress and has been associated with large scale marine mammal mortalities and fish kills. However, potential chronic effects of exposure, including via maternal transfer, have not been well characterized. Fetal and juvenile mammals may be particularly susceptible to the neurobiological effects of excitotoxins due to their developmental stage. Many resident coastal bottlenose …

Social Protection To Foster Inclusive, Resilient Early Childhood Education In Kenya, Uganda, And Tanzania, Nyagwegwe Wango

Institute for Educational Development, East Africa

In order to evaluate the efficacy of systems approaches in enhancing early childhood education (ECE), this study summarizes outcomes from the SESEA and F4L programs in Kenya, Tanzania, and Uganda. The study investigates how context-responsive ECE, social-emotional learning (SEL), and social protection (SP) interventions contribute to improvements in teaching practices, inclusion, and learner outcomes using mixed-methods data, including teacher surveys, classroom observations, and policy analysis. The findings show significant improvements in inclusive classroom practices, gender-sensitive pedagogy, and teacher confidence, especially when reflective peer learning and continuous mentoring are incorporated. Children’s academic performance and well-being have been linked to the integration …

Edvard Munch And The Feminine Sublime, Saralyn Goodspeed

Theses

This paper explores the theory of the sublime in relation to Edvard Munch’s depictions of women. Departing from the common view that Munch was simply anxious about the “New Woman” that emerged in the late nineteenth-century, I argue that Munch’s conflicting emotions regarding women were sublime in nature, rooted in his childhood relationship with his mother. A formal analysis is conducted on three of Munch’s works: Inheritance (1897), Three Stages of Woman or Sphinx (1894), and Madonna (1895). These analyses link Munch’s representations of women to a maternal sublime.

The 2026 Mda Award Winners: Recognizing Outstanding Service, David Foe

The Journal of the Michigan Dental Association

This article lists the recipients of the 2026 MDA awards, highlighting their contributions to the dental profession and public health. Notable winners include Dr. Christopher Smiley, recipient of the Meritorious Award for a lifetime of achievement in dental journalism and leadership, and Dr. Charles Burling, honored as Dentist Citizen of the Year for his community service. The feature also recognizes educators, legislative advocates, and volunteers in the Donated Dental Services (DDS) program who provide care to vulnerable populations.

Cognitive Behavioral Therapy For Individuals With Low Literacy And Perinatal Depression: A Randomized Clinical Trial, Eliza Kleban, Ashleen Lee, Aminata Koroma, D Taylor Hendrixson, Joshua Duncan, Mark J Manary, Kevin B Stephenson

2020-Current year OA Pubs

IMPORTANCE: Perinatal depression is common in sub-Saharan Africa, yet treatment gaps are substantial. Cognitive behavioral therapy (CBT) is effective but relies on written materials.

OBJECTIVE: To evaluate the efficacy of a culturally adapted CBT intervention delivered by lay counselors to women with perinatal depression in rural Sierra Leone.

DESIGN, SETTING, AND PARTICIPANTS: This study was an individually randomized, outcomes assessor- and investigator-blinded, clinical trial of an adapted CBT intervention vs enhanced usual care. The trial was conducted in 6 government-run antenatal clinics in Pujehun District, Sierra Leone, which has limited infrastructure, low literacy, high maternal undernutrition, and no perinatal mental …

Preterm Birth Increases Susceptibility To Hyperglycemia-Induced Kidney Injury With Sex-Specific Differences In Structural And Molecular Responses, Rachel K Dailey, Aleksandra Cwiek, Logan C Hamil, Sage Timberline, Ayyappa Kumar Sista Kameshwar, Masako Suzuki, Jaya Isaac, Kimberly Deronde, Mark Conaway, Kevin M Bennett, Edwin J Baldelomar, Matthew R Hoch, Kimberly J Reidy, Jennifer R Charlton

2020-Current year OA Pubs

BACKGROUND: Preterm birth increases the long-term risk of diabetes and chronic kidney disease (CKD), yet its impact on diabetic kidney disease (DKD) is unclear. We previously showed that male preterm mice with diabetes develop early features of DKD, including reduced podocyte density, decreased renin expression, activation of angiogenesis pathways, and impaired endothelial-podocyte signaling. Here, we examine whether preterm birth similarly accelerates DKD progression in female mice and compare structural and transcriptomic outcomes in the females to the prior male cohort to assess sex-specific differences.

METHODS: Preterm mice were delivered by Caesarean section at 19 days post conception (dpc) and term …

Validation Of Rice Tissue Sampling For In-Season Nutrient Management Of Nitrogen, Phosphorus, And Potassium, Tanner Smith

Graduate Theses and Dissertations

Nitrogen (N), phosphorus (P), and potassium (K) are the 3 most important nutrients involved in rice (Oryza sativa L.) growth and development. Tissue sampling has been proven to be a potential tool to provide inseason information about plant nutrient concentrations at specified timings and growth stages. With increased interest in tissue sampling and improving nutrient management effectiveness, more information is needed to validate plant tissue concentrations at which additional fertilizer inputs may be warranted. Experiments were conducted in 2024 and 2025 at the Rice Research and Extension Center (RREC) near Stuttgart, Ark.; Pine Tree Research Station (PTRS) near Colt, Ark.; …

The Economic Viability Of The Sports Academy Industry, Dylan Bowen

Theses & ETDs

This paper examines the economic viability of the sports academy industry, focusing on its rapid growth and underlying market dynamics. The analysis begins by outlining the rise of sports academies from niche training facilities to fully integrated institutions that combine academics, elite athletic development, and commercial operations. It highlights how the increase in competition in youth sports has created a demand for elite training facilities and pathways to collegiate and professional athletics. Sports academies are able to meet this demand providing exclusive training programs along with strong academic programs that will prepare them for the next step. The paper then …

Strength And Conditioning As A Physiological Strategy For Injury Prevention In Competitive Sports, Gabriel Mocco

Theses & ETDs

This thesis examines the relationship between strength and conditioning and injury risk in competitive sport, with a focus on collegiate soccer. The motivation for this study grew from four years of personal experience as a student-athlete, during which multiple injuries and a growing engagement with structured strength training led to a deeper understanding of how physical preparation influences the body's ability to handle the demands of competitive sport. The Literature Review covers nine key areas, including neuromuscular and biomechanical factors, strength training and injury prevention, training load management, previous injury as a risk factor, specificity of training, energy availability and …

College Of Natural Sciences Spring Newsletter, College Of Natural Sciences

College of Natural Sciences Newsletters and Reports

[Page 1] Dean's Message
[Page] 2 Awards & Recognitions // Student Spotlights
[Page] 3 Zhang Named to Landsat Science Team // The Power of Teaching
[Page] 4 “Science as Art” Competition Welcomes High School Artists
[Page] 5 Testing for “Forever Chemicals” in Surface Water // New Faculty Spotlight
[Page] 6 Ambassador Initiated Outreach
[Page] 7 57th Annual Geography Convention
[Page] 8 Twice the Impact on On Call with the Prairie Doc
[Page] 9 Making Staple Foods Healthier // Halaweish & Cole-Dai Retire
[Page] 10 Drone Day 2026
[Page] 11 Student Research, Scholarship, and Creative Activity Day (SRSCAD)
[Page] 12 Ceremony …

Red 40 Riot: An Interdisciplinary Perspective On The Fight For Food Additive Regulation, Margaret Q. Gray

Honors Theses

This paper explores the chemical, business, and governmental influences that impact the perception and future of Red 40. This inquiry was inspired by the increasing trends towards health-conscious consumer preferences and the 2025 Red 3 ban. This thesis examines foundational research, modern sources, and public-facing articles to create a comprehensive understanding of both sides of the argument in support of and against regulation. The paper concludes that a three-pronged approach would be ideal to target each key perspective included: chemistry, business, government. The approaches include confirming chemical research method validity, encouraging governmental regulation, and corporate accountability and enforcement. The paper …

Dairy And Food Science Student Newsletter, May 1, 2026, Department Of Dairy And Food Science

Dairy and Food Science Student Newsletter

No abstract provided.

Exploring Sociodemographic Factors Associated With Frozen Produce Purchases Among U.S. Households, Joslyn Russell

Honors Capstone Projects

Frozen fruits and vegetables are convenient, cost-effective, healthful options that could help consumers meet national nutritional recommendations. However, there is a dearth of data regarding household sociodemographic factors associated with frozen food purchases. My two-fold honors capstone project involved conducting a secondary analysis of nationally representative data obtained from the United States Bureau of Labor Statistics Consumer Expenditure Surveys to explore the sociodemographic factors associated with the likelihood of purchasing frozen fruits, frozen vegetables, and frozen meals. An exploratory analysis was also conducted with additional variables such as United States region, household area population size, and number of hours worked …

Sensing Rna’S Conformation With A Solid-State Nanopore Device At Various Ph And Temperature, Haopeng Li

Graduate Theses and Dissertations

This study uses solid-state nanopore technology to investigate the stability and dynamics of RNA molecules under thermal stress and pH fluctuations. Two distinct mRNA samples were analyzed: (1) heat shock protein (HSP)-encoding mRNA extracted from Sulfolobus solfataricus P2, a thermophilic archaeon inhabiting extreme environments such as geothermal sulfuric hot springs (pH < 4, temperature range: 65–90°C), and (2) total RNA extracted from White Leghorn chickens, which thrive under standard physiological conditions. ΦX174 virion single-stranded DNA (ssDNA) were included as a comparative reference. Nanopores, fabricated in silicon nitride membranes, were used to electrically characterize the structural properties of individual RNA molecules in solution, close to their native environments. The nanopore membrane separates two chambers containing salt buffer solution, where ionic current is the primary measurement parameter. When a voltage bias is applied across the membrane, ion flow and an ionic current can be measured. Charged RNA molecules driven translocation through the nanopore induces pore resistance changes, resulting in detectable current blockade events. Variations in these events provide insights into RNA secondary structure and conformational dynamics. By systematically altering pH and temperature, this study elucidates the effects of environmental stressors on RNA stability and structural integrity. The findings reveal distinct responses between thermophilic HSP-encoding mRNA and mesophilic RNA, underscoring the adaptive mechanisms of thermophilic RNA under extreme conditions. These results contribute to a better understanding of RNA behavior under stress and establish a foundation for future applications in RNA-based diagnostics and biotechnology development.

Consumer Perceptions Of Fda Front-Of-Package Nutrition Labeling, Madison Price

Graduate Theses and Dissertations

The U.S. Food and Drug Administration (FDA) proposed a front-of-package nutrition labeling (FOPL) rule in early 2025 to help consumers more quickly and easily compare the nutritional quality of packaged foods (U.S. Food and Drug Administration, 2025). FOPL is gaining attention as a way to encourage healthier eating habits and consumer choices, but there is still debate over which label format works best. The objective of this study was to examine consumer perceptions, understanding, and trust of FDA FOPL, and to determine how these labels impact purchasing behavior and nutritional decision-making. Data were collected via an online Qualtrics survey distributed …

A Clinical Study Examining The Effects Of Dietary Nitrate On Urinary N-Nitrosamines, Catherine P. Bondonno, Michaela L. Sundqvist, Sujata Shinde, Kevin Croft, Jonathan M. Hodgson, Mattias Carlström, Eddie Weitzberg, Jon O. Lundberg

Research outputs 2022 to 2026

BackgroundInorganic nitrate from dietary sources has raised health concerns due to its possible conversion into carcinogenic N-nitrosamines, leading to strict regulations on nitrate concentrations in food and drinking water.ObjectivesIn this study, which was a part of a larger randomized controlled trial, we evaluated urinary excretion of N-nitrosamines in response to daily dietary nitrate intake over a 5-wk period using 2 different forms of nitrate administration.MethodsA total of 231 participants with mild hypertension were randomly assigned into 3 groups. Group 1 (n = 78) consumed vegetables low in nitrate along with a placebo capsule (300 mg potassium chloride). Group 2 (n …