Digital Commons Network^™

Beyond Local Pathology: Exploring The Role Of Gut Microbiota In Chronic Low Back Pain Using An Integrated Behavioral And Microbiological Approach, Adan L. Redwine

Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research

Chronic low back pain (LBP) affects millions worldwide, often originating from intervertebral disc (IVD) degeneration. While the gut microbiome modulates musculoskeletal pain, prior studies of the gut-disc axis have focused entirely on structural changes. This leaves a critical gap: does the microbiome influence the experience of discogenic pain? To answer this, an integrated approach using longitudinal gut microbiome profiling, machine learning-based behavioral phenotyping, and structural disc assessments in a rat model of discogenic LBP was utilized.

Female Sprague Dawley rats underwent one of four conditions: sham surgery, IVD injury, antibiotic-mediated microbiome depletion + IVD injury, or IVD injury + treatment …

Lipid Deposition In Beef Cattle, Kyra L. Elliott

Department of Animal Science: Dissertations, Theses, and Student Research

Both the amount and types of lipid deposition in beef cattle are key determinants of carcass value and meat quality. Amounts of intramuscular, subcutaneous, and visceral fat influence carcass grading outcomes, palatability, and composition traits that are important to beef producers as well as consumers. The objectives of this thesis were to: 1) compare beef grading camera estimates of intramuscular fat to amounts of chemically extractable lipid, 2) characterize the lipidomes of beef intramuscular fat, subcutaneous fat, and lean muscle using shotgun lipidomics, and 3) identify and characterize a novel genetic variant in cattle that may have important implications for …

Characterization Of Activity Changes In Gilts During Estrus Using The NuTrack Livestock Monitoring System, Emily P. Aquino

Department of Animal Science: Dissertations, Theses, and Student Research

Early and accurate detection of estrus in replacement gilts is essential for reproductive success and to ensure efficient production. The objective of this study was to evaluate activity changes occurring relative to first estrus of gilts and subsequent cycles. At ~ 110 days of age, 112 gilts were randomly assigned to 14 pens and placed under continuous video monitoring until the end of the trial at ~ 200 days of age. Daily boar exposure (~ 10 minutes per day) began at ~ 122 days of age. During this period, recorded observations included vulva scores (based on swelling and redness), mounting …

Evaluation Of Maternal Bovine Appeasing Substance Administration And Feed Access Time On Finishing Cattle Performance, Behavior, And Carcass Characteristics, Carsten L. Loseke

Department of Animal Science: Dissertations, Theses, and Student Research

Novel products and bunk management techniques may significantly influence economically relevant performance metrics of feedlot cattle. The objective of the first experiment was to evaluate maternal Bovine Appeasing Substance (mBAS) administration on performance, carcass, health, and cortisol outcomes of yearling steers. Steers (n = 1,754, initial BW = 423 kg, SD = 25 kg) were received and assigned to pens for treatment allocation. Steers received either 10 mL of the mBAS or a mineral oil placebo at initial processing and reimplant. Hair samples were collected from a subset (n = 4 steers/pen) on d 0 and d 14. …

Tail Biting In The Nursery: Evaluating Postural, Spatial, And Behavioral Differences Between Tail Biter And Victim Pigs, Storey L. Forster

Department of Animal Science: Dissertations, Theses, and Student Research

This study examined behavioral differences among pigs classified as tail biters, victims, or neutral during the nursery period. A total of 192 undocked nursery pigs were assigned to eight pens and monitored for 30 days using the NUtrack system. Tail biting events were identified from video observations, and pigs contributing to the top 25% of observed tail biting activity were classified as tail biters. Based on weekly tail scoring, pigs assigned a maximum tail injury score ≥ 2 were classified as victims. All other pigs were considered neutral. A total of 700 tail biting events were observed. Thirty-eight pigs …

Application Of High-Pressure Processing To Improve The Color Of Dark Beef, Kara Ann Reynolds

Department of Animal Science: Dissertations, Theses, and Student Research

Deviation of beef from the bright cherry-red color preferred by consumers is often discounted or discarded at retail, resulting in substantial annual economic loss to the beef industry. One such deviation is dark cutting beef, which is characterized by a darker lean appearance that is undesirable to consumers and often rejected. Similarly, beef from mature cattle tends to exhibit a darker surface color, which can also reduce consumer acceptability. High-Pressure processing (HPP) has been investigated as a strategy to improve the color of dark cutting beef. Previous studies have focused on identifying pressure levels and holding times that optimize color …

The "Evil Forest" As Threshold: A Computational Eco-Feminist Study Of The Forest In Nigerian Fantasy, Cynthia O. Mbagwu

Department of English: Dissertations, Theses, and Student Research

This study examines the representation of the “evil forest” in Nnedi Okorafor’s Zahrah the Windseeker and Ukamaka Olisakwe’s Don’t Answer When They Call Your Name, arguing that the forest functions as a liminal threshold that catalyses female transformation. Combining close reading with computational tools like TF-IDF keyword extraction in Ruby and sentiment analysis using VADER, the project investigates how pre-colonial and colonial connotations of the “evil forest” are re-imagined in contemporary Nigerian fantasy fiction. By segmenting each narrative into pre-liminal, liminal, and post-liminal phases, the study tracks shifts in sentiment toward the forest and correlates them with thematic developments …

Cytoplasmic Shift Of Interferon Regulatory Factors Co‐Evolved With Jawed Vertebrate Innate Immunity, Vanessa M. Hubing

Honors Program: Senior Projects (Public)

The emergence of jaws in early vertebrates introduced a novel feeding apparatus and powerful oral defenses, but it also increased the risk of physical injury and pathogen exposure. Interferon regulatory factors (IRFs) play critical roles in orches-trating innate immunity and inflammation in response to invading microbes and tissue damage, with their subcellular local-ization being essential to some IRFs' function. Our results indicate that IRF members underwent independent expansion and diversification in two distinct vertebrate lineages: jawed and jawless vertebrates. The jawed vertebrate-specific factor, IRF5, has maintained conserved nuclear export sequences throughout evolution, while newly diversified IRF members in jawed verte-brates …

Piano Composition And The Role Of Women In Nineteenth Century Europe, Khang Nguyen

Honors Program: Senior Projects (Public)

In the nineteenth century, women underwent a social transition, slowly obtaining more employment and educational opportunities. The lives of women piano composers were similar, with their status as women affecting their compositional careers. This thesis explores the connection between piano composition and the role of women in the nineteenth century, with a focus on Western Europe. A brief history of Europe in the nineteenth century will be given, followed by an overview on how music and the music industry were gendered at the time. Then, the lives of Clara Schumann, Fanny Hensel, and Agathe Backer Grøndahl will be analyzed as …

Lewis Carroll’S Curious Creatures: Examining Carroll’S Use Of Animal Characters Within The Context Of His Life And Victorian Era England, Nima M. Faunce

Honors Program: Senior Projects (Public)

Lewis Carroll’s Alice’s Adventures in Wonderland (1865) has maintained a wide readership since its publication, but many aspects of Carroll’s original intentions and inspirations are lost on modern readers. By examining his animal characters through the lens of his personal life and Victorian England, a deeper understanding of his novel is uncovered. Some of his characters directly reflect individuals from his real life, such as the Liddell family, while other characters provide a window into Victorian beliefs and practices. This paper investigates each of Carroll’s animal characters in order of appearance and determines possible points of inspiration from his personal …

The Consumptive Female Ideal: The Case Study Of “Snow White”, Nayla G. Torres Ruiz

Honors Program: Senior Projects (Public)

Tuberculosis (TB), also known as “consumption” or “phthisis,” was one of the most pervasive and culturally significant diseases of the eighteenth and nineteenth centuries. Despite its high mortality rate—claiming more lives than cholera and smallpox combined—TB was widely romanticized in art, literature, and popular culture, particularly as a feminine disease associated with beauty, purity, fragility, and moral virtue. The physical traits of consumption—pale skin, rosy cheeks, red lips, glassy eyes, and a slender, delicate frame—became an ideal of female beauty, one that many women sought to emulate through restrictive diets, toxic cosmetics, and evolving fashion trends, such as increasingly tight …

Ferrari N.V. Capstone Strategic Report, Isabel Pillaii

Honors Program: Senior Projects (Public)

This report explores the strategic position of Ferrari through Porter’s Five Forces, PESTEL, VRIO Analysis, Value Chain, and SWOT analysis. Then the report offers recommendations to the main tensions and strategic dilemmas before finally making remarks on the risks and limitations of this report. This report remarks on the strong strategic position of Ferrari due to branding, and its strong performance in Formula 1 racing and overall product specifications. It also remarks on Ferrari’s exposure to political, economic, and legal risk related to sustainability, supply chain stability, and exchange rate risk. This report recommends that Ferrari continues investing in electric …

Killing The Hot Vampire: Gender, Camp, And The Stakes Of Desire In Nineteenth-Century Vampire Fiction, Ella G. Kehr

Department of English: Dissertations, Theses, and Student Research

This thesis examines the representation and destruction of the Hot Vampire in nineteenth-century vampire fiction, focusing on Dracula (1897), Carmilla (1872), and The Blood of the Vampire (1897). It argues that these texts construct the female vampire as a figure of excessive sexuality, independence, and deviance which causes both societal (patriarchal) and narrative disruption. In the male-authored texts, the construction of the Hot Vampire is exaggerated beyond the neat bounds of gothic excess and monster theory. The destruction of these vampires also follows this unbound extravagance. The Hot Vampire’s death becomes the ritualized restoration of patriarchal order, which is often …

Population Structure And Connectivity Of Atlantic Nurse Sharks (Ginglymostoma Cirratum) In The Bahamas And Outlying Areas, Baylie A. Fadool

School of Natural Resources: Dissertations, Theses, and Student Research

Understanding animal ecosystem dynamics and behavior at the individual and population levels is essential for identifying life-history patterns and important areas for management and conservation. Marine fish species often face minimal geographic barriers to movement, but environmental (temperature, salinity, current) or intrinsic barriers (philopatry, site fidelity) can dictate gene flow. Atlantic nurse sharks (Ginglymostoma cirratum) are an International Union for Conservation of Nature (IUCN) listed ‘vulnerable’ species and present a unique opportunity to investigate patterns of population structure and connectivity in large-bodied sharks. They are benthic and display reproductive philopatry, with recent work suggesting they have the capacity …

Examining Extremes: A Comparison Between Machine Learning Based Southwestern Conus Seasonal Drought And High Fire Risk Event Synoptic Climatologies, Ethan M. Greenberg

School of Natural Resources: Dissertations, Theses, and Student Research

The Southwestern United States (SW CONUS), comprised of California, Arizona, Nevada, and Utah, is a vast region that tens of millions of people call home. Hosting ecosystems ranging from grasslands and shrublands to temperate forests and climate zones ranging from Mediterranean climates to arid deserts, the region is nearly unanimously prone to intense droughts and devastating wildfires. While fire weather conditions and drought are often studied separately or mentioned as background conditions for the other, there are relatively few studies that compare the typical meteorological conditions between the two. This study aims to more closely understand the meteorological relationship between …

Gaining Mussel: Evaluating Reintroduction Success Of Native Freshwater Mussels In Nebraska And Eastern Wyoming, Travis A. Moore

School of Natural Resources: Dissertations, Theses, and Student Research

Freshwater mussels are one of the most imperiled groups of organisms in North America, with over two-thirds of species considered threatened, endangered, or of special concern. These long-lived bivalves are essential to stream ecosystems, acting as filter feeders that improve water quality and as indicators of aquatic health. In Nebraska and Wyoming, native mussel populations have declined sharply due to habitat modification, pollution, and reduced connectivity. Two species of particular concern are the Plain Pocketbook Lampsilis cardium, listed as Tier I at-risk in Nebraska, and the Fatmucket Lampsilis siliquoidea, a Tier II at-risk species. In response, state agencies …

Honeybee Colony Response To Probiotic Supplementation And Grazing Practices, Katya M. Busenitz

Department of Entomology: Dissertations, Theses, and Student Research

Honeybee health is a complicated issue. Studies were conducted to scale honeybee (Apis mellifera) health from the microbiome to the landscape. Colony health parameters were measured in response to probiotic administration. Colony capped brood production, colony summer weight gain, and Varroa mite incidence were measured. I found that applications of over-the-counter probiotics did not improve the measured parameters of honeybee health compared to a control group. Results suggest that probiotic application was not beneficial but positive benefits may depend on application method, brand, or strain of probiotics used. I also examined how colony health metrics responded to different …

Charting The Course: The Influence Of Mentorship On Women's Careers In Outdoor Education, Jessica M. Callahan

Department of Teaching, Learning, and Teacher Education: Theses and Other Student Research

Mentorship is a significant contributor to women’s experiences working in outdoor education, yet it remains underresearched in a formal capacity. This study aims to answer the central research question of “What meanings do women give to mentorship experiences in relation to their career development, retention, and professional identity?” A qualitative, phenomenological approach was chosen to be most appropriate, and both synchronous interviews and an online survey were used to collect data. In total, data was collected from 24 participants, which was analyzed using thematic analysis. Identified themes were categorized by the topics of mentor qualities and impact on self, mentorship …

Spatiotemporal Variability Of Differential Reflectivity (Zdr) Columns Due To Environment In Tornadic And Nontornadic Supercells, Adrianne J. Engel

Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research

Polarimetric signatures have been of interest to researchers and operational forecasters since the completion of the WSR-88D network upgrade in 2013. Differential reflectivity (Z_DR) columns, which are collocated with supercell updrafts, are the focus of this study. Microphysical distributions within these signatures can be used to infer updraft strength and elucidate the processes responsible for updraft intensity and evolution. Z_DR column depth, areal extent, and variability of these metrics through space and time are assessed in a dataset of 114 nontornadic and tornadic supercells. Means of column metrics in nontornadic, non-tornado-producing, and tornado-producing analysis times are evaluated …

Passive Microwave Remote Sensing Of Flash Drought Impacts On Vegetation, Quinton R. Deppert

School of Natural Resources: Dissertations, Theses, and Student Research

In 2002, Dr. Mark Svoboda characterized a new form of drought known as flash drought. Flash drought was defined as a rapid decline in vegetation health caused by severe heat and drought. In recent years, attempts to quantify the impacts of flash drought via precipitation, soil moisture, evapotranspiration, and temperature indicators have proliferated. What has rarely been quantified is what the rapid decline in vegetation health amid flash drought looks like through remote sensing. This is because vegetation health indices like the Normalized Difference Vegetation Index (NDVI) are derived from the visible and infrared regions of the electromagnetic spectrum and …

Evaluating Management Strategies And Technology To Improve Grazing Efficiency, Thomas E. Aquino

Department of Animal Science: Dissertations, Theses, and Student Research

Increasing land costs and labor constraints continue to challenge beef producers. More intensive practices can increase harvest efficiency; however, many producers are deterred from implementing them due to increased labor and management considerations. Virtual fencing (VF) may provide a reduced labor alternative to traditional fencing for managing intensive grazing. This dissertation evaluated management strategies and VF technology to improve grazing efficiency of stocker cattle systems. In Experiment 1, VF was used to effectively manage groups of steers grazing in adjacent paddocks separated by only virtual boundaries. There was no difference in VF containment (99%) when steers were grazing co-fenced, with …

Psychological Principles In Writing Center Consulting & Ai, Ella S. Hansen

Honors Program: Senior Projects (Public)

A third of those ages 18 to 24 have engaged with ChatGPT (OpenAI, 2025). The newest form, ChatGPT-4, is better at generating more plausible long-form essays and creative writing than ever before (Imran & Almusharraf, 2023), meaning that AI-assisted writing is prevalent at higher education institutions (Cardon et al., 2023) and in writing centers (Goulet, 2025). Limited research has investigated the impact of this on writing center consultants. This multidisciplinary study investigated how consultants feel about large language model artificial intelligence (LLM AI) and how it can impact the consulting process, through the lens of three psychological principles: empathy, social …

The Night Circus - The Traveling Edition: An Advertising Campaign And Cross-Cultural Analysis, Charlee A. Salinas

Honors Program: Senior Projects (Public)

This thesis is an outline of my advertising plansbook that examines how culturally adapted advertising for a single book affects perceived authenticity, emotional resonance, and purchase intent across three distinct markets: the United States, Brazil, and Vietnam. This study examines three culturally distinct markets to identify which advertising elements require full localization versus those where standardization is acceptable. By comparing adapted campaigns against a standardized approach, this research provides actionable insights for publishers navigating the efficiency-effectiveness trade-off.

The research questions asked:

-       How does culturally adapted advertising for the same book affect perceived authenticity, emotional resonance, and purchase intent across …

The Mysteries Of Postpartum Ocd: A Systematic Review, Taryn Shaffer

Honors Program: Senior Projects (Public)

Background: The research on postpartum mental health is growing, with most focusing on physical and sexual wellness, or well-known mental health symptoms such as psychosis, depression, and stress. However, as the research grows, so does the interest in lesser-known or under-considered postpartum mental health symptoms, including Obsessive-Compulsive Disorder (OCD). The focus of this research can be the exacerbation of already-present OCD symptoms, or the onset of them during pregnancy and the postpartum period. The purpose of this systematic review was to analyze research on OCD in pregnant and postpartum women. Specifically, the review included an analysis of measures used to …

The New York Times: A Strategic Audit, Kaylee Campbell, Cassidy June, Keira Cummins, Tanner Maas, Alyssa Fjelstad

Honors Program: Senior Projects (Public)

The New York Times is a legacy newspaper that has navigated a great many changes since its founding in 1851. The company rose to success with its traditional print journalism, but has now transformed into a largely digital, subscription-based business model that provides subscribers with access to news, games, recipes, podcasts, product recommendations, and more. This provides an excellent foundation for a strategic audit to understand how one of the giants of a dying industry has not only managed to stay alive, but to thrive.

A PESTEL and Porter’s Five Forces analysis reveals that The New York Times operates in …

Netflix, Inc. Strategic Audit, Jadyn J. Koehler

Honors Program: Senior Projects (Public)

Netflix is a dominant company in the global entertainment industry. The company has changed the way people watch and interact with movies and shows. Netflix has over 300 million subscribers and operations in more than 190 countries. This strategic audit examines Netflix’s current situation, including its performance, governance structure, internal strengths, and external environment. This audit also examines some of the biggest problems, which include increased competition, higher content costs, and changes in consumer behavior. This analysis considers strategic alternatives and recommendations to support long-term growth. The goal of this report is to evaluate Netflix’s ability to maintain its competitive …

Part Of The Family, Brian Garbrecht

School of Art, Art History, and Design: Theses and Student Creative Work

Part of the Family examines television as both a domestic object and a cultural force. TV was not simply something my family watched, but something we lived with. Through CRT televisions, VHS recordings, family photographs, altered TV Guides, fictional broadcasts, and immersive living-room installations, the project explores how television shaped memory, kinship, attention, and belonging in the American home. Drawing from my family’s archive of Chicago-area broadcasts recorded between the 1990s and early 2000s, the work treats VHS as a hybrid form of home movie, preserving the flow of commercials, news, station IDs, sitcoms, movies, and accidental overlaps that structured …

Real-Time Adaptable Residential Kitchen: A Plug-In Standard, Rachel Fuelberth

Masters in Architecture Program: Theses

This thesis looks at how a real-time adaptable standard could be put in place within the modern kitchen to allow for equitable use of the space by numerous members of the household and their differing physical characteristics. The residential kitchen is a fundamentally exclusionary architectural construction designed around able-bodied, average-height adults. This excludes children, the elderly, anyone outside of the average height, and people with mobility differences. The kitchen has never been a place of equity. It has been designed to be used by an average-height female, and it does not account for the discomfort of those outside this norm. …

Design And Development Of A Passive Dust Protection System For Lunar Docking Operations, Simon Thengvall

Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research

Lunar docking systems face a unique set of environmental conditions that can create significant challenges for mechanical design. Among these, the abrasive nature of lunar regolith can impair the kinematic function of traditional terrestrial mechanisms as well as contaminate critical spacecraft components such as environmental seals, causing them to fail. For crew-rated docking systems, failure of these systems not only threatens mission success, but also crew safety, so dust protection is crucial for docking components. To address the concerns of regolith intrusion, the Simple External Attachment for Lunar Openings (SEALO) is developed as a key architecture for mechanism evaluation when …

Decomposition Study Using Pigs In Southeastern Nebraska During The Fall And Winter Seasons, Ryan Bodine

Department of Anthropology: Theses and Student Research

When an individual is found deceased, one of the tools used in the identification process is estimating the post-mortem interval (PMI). This estimate is used to determine how long an individual has been deceased once their remains are found. To estimate an accurate PMI, knowing how decomposition is affected by external factors is key. The transition period from fall to winter in southeastern Nebraska consists of fluctuating temperatures as the seasons transfer from fall to winter. This thesis investigates how decomposition is affected during this transition period while also looking at two different environments that are common in Nebraska, prairies …