Digital Commons Network^™

Next-Generation Biomedical Implants And Stimuli Responsive Soft Optical Arrays Via Surface Functionalized Elastomeric Materials, John M. Kapitan

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

The demands of emerging technologies, such as soft robotics, stretchable electronics, and next generation biomedical implants, has led to the development of diverse polymeric and hybrid organic/inorganic materials specifically tuned to meet these challenges. These materials typically have low Young’s moduli and are inert with high chemical stability. However, this has led to materials that are static in nature, lacking any meaningful way of responding to changes in their environment and adapting to these changes. This has driven a shift towards the design, manufacturing, and characterization of various stimuli responsive surfaces, relying on precise control of surface chemical coatings and …

Evelyn Waugh And The Problems Of Representing Conversion, Alec J. Miller

Department of English: Dissertations, Theses, and Student Research

Evelyn Waugh’s conversion to Catholicism in 1930 raised the question of how his writing would change. The satires he wrote before his conversion, Decline and Fall (1928) and Vile Bodies (1930), are hilarious but have no spiritual vision. Critics attacked his second novel after his conversion, A Handful of Dust (1934), for not being fitting for a Catholic writer to have made. Yet, Waugh makes a religious point in A Handful of Dust, exploring the wages of spiritual apathy without showing a path out. Later in Waugh’s career, he makes his finest attempt in the Sword of Honour trilogy …

Artificial Interiors, Alex Renbarger

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

Artificial Interiors is a series of intimately scaled paintings that depict dramatically lit domestic interiors. My limited yet saturated color palette creates a dark atmosphere that feels both strange and familiar, contributing to the unsettling ambiance of the domestic scenes. Their origins in Artificial Intelligence (AI) prompts further reinforce this effect. Each painting begins as a composite collage created with AI-generated images, iterative prompts, and Photoshop, in a process that creates fantasy spaces, detached from real ones, even as their elements - sofas, chairs, corners, stairs - suggest common expectations and experiences for domestic life in the U.S.

These digitally …

Commonly Encountered Insect Pests Of Virginia, Angel Almaas

Department of Entomology: Distance Master of Science Projects

Foreword

The goal of this pamphlet is to provide an outline of over 50 commonly encountered pest species that occur in Virginia. Care was given to represent each category of pest. This is by no means an exhaustive list of insect pests in Virginia. However, the profiles chosen are reflective of data from insect inventories performed on military bases in coastal Virginia (Fort Eustis, Langley Air Force Base, and Camp Pendleton), sampling from counties in central Virginia, insect species diversity surveys performed in northern Virginia, annual species counts of vector surveillance data from the Virginia Department of Health, and information …

Algorithms For Order Statistics In Farey Sequences: A Computational Study, Connor Weyers

School of Computing: Dissertations, Theses, and Student Research

Farey sequences are the sets of irreducible fractions in increasing order with denominator less or equal to some integer n. They are a well-known concept in number theory problems and are related to many other concepts in number theory including integer factoring, Fibonacci sequences, and Riemann’s Zeta function. In this paper, we investigate some known algorithms to solve certain problems in Farey sequences from a computational perspective. In particular, we implement established algorithms that have not been previously implemented with the goal of creating a package that can be used more broadly. We also develop a new algorithm for rational …

Enhancing Remote Sensing Imagery Temporal Resolution Using Starfm Data Fusion Approach For Improved Land Surface Monitoring, Ahmadreza Pourghodrat

School of Computing: Dissertations, Theses, and Student Research

High-resolution remote sensing imagery plays a critical role in various domains, such as farm-level agricultural operations, environmental monitoring, and natural resource management. However, data with high spatial resolution typically have low temporal resolution, and those with high temporal resolution often lack spatial detail. For example, Landsat 8 and 9 satellites deliver high spatial resolution images with a 30-meter pixel size but suffer from low temporal resolution, with a 16-day revisit cycle. In contrast, satellites like MODIS and VIIRS provide daily images but with a much coarser spatial resolution (375 meters or more), reducing spatial details. Additionally, there is a lack …

Leading And Collaborating In A Complex Space: Developing And Evaluating A Course Materials Program, Catherine Fraser Riehle, Melissa Gomis

University of Nebraska-Lincoln Libraries: Faculty Publications

Librarians at a large public university describe ongoing efforts to develop a strategic, multi-pronged Libraries Course Materials Program to reduce course material costs for students. These efforts include the integration of course materials in the university’s learning management system in addition to offering course materials reviews, consultations, and grant opportunities for instructors. A pilot program in the College of Business provided a path for direct outreach to instructors as well as significant potential student cost savings and revealed challenges related to communication and recruitment. Authors share their approach to program evaluation for understanding and communicating impact and for estimating the …

Optimizing Transcription Efficiency Through Mutations In The T7 Rna Polymerase, Claire N. Novak

Honors Program: Senior Projects (Public)

The production of RNA is vital for many commercial and research purposes, with one of the more notable reasons being vaccine production. The RNA polymerase, derived from T7 bacteriophage, is commonly used for RNA production due to its ability to produce full-length RNA transcripts. However, researchers have faced limitations in optimizing this polymerase. For example, the polymerase generates heterogeneous RNA products that require additional purification steps during RNA production. Here, we selected three amino acid point substitutions based on a recent publication from Moderna that showed increased RNA purity compared to the wild type T7 RNA polymerase sequence. We created …

The Tate Resolution Over A Complete Intersection Ring, Kolton O'Neal

Honors Program: Senior Projects (Public)

Given a Noetherian commutative ring R and an ideal I ⊆ R, Tate provided a construction in [5] to produce a DG R-algebra that is also a free resolution for R/I. In this work, we review free resolutions and DG algebras, describe Tate’s construction, and present a proof of a result from Tate’s paper about his construction when a regular sequence is involved. Specifically, this result is that it only takes two steps of Tate’s construction to resolve a characteristic 0 field k over k[[x1, . . . , xn]]/(f1, . . . , fc), where f1, . . . …

Understanding How Family Dynamics Affect Mental Health Communication In Inside Out: A Content Analysis, Kataryna Morton

Honors Program: Senior Projects (Public)

This study examines the impact of open communication between family members on mental health and a child’s sense of belonging in the film Inside Out. Previous research has shown the impact of media on children’s socialization, which can influence stigma and make it less likely for vulnerable communication to occur. It is crucial for children to learn to communicate their emotions, and the media can play a key role in shaping these beliefs. Inside Out provides a positive example of mental health communication, which is specifically explored through Riley’s communication with her parents throughout the film. Using a content analysis, …

The Role Of Fear Of Deportation And Perceived Discrimination On Mental Health Outcomes And Service Utilization Among Hispanic Immigrant Nebraskan Women, Karen Rodriguez

Honors Program: Senior Projects (Public)

The 2024 US elections stirred up the anti-immigration movement in the US, thus exacerbating the culture of fear around immigration among immigrant communities. Hispanic immigrant women in the US are an underserved and marginalized group that experiences health challenges associated with immigration. These challenges may be linked with fear of deportation and perceived discrimination. This project examined the role of fear of deportation and perceived discrimination on the service utilization and mental health outcomes of Hispanic immigrant Nebraskan women. The sample consists of a convenience sample of 111 Nebraskan immigrant Latinx women. Participants completed a series of questionnaires, including frequency …

Integrated Geophysical Modeling Of Newly Identified Pseudofaults Within Southern Cascadia Subduction Zone, Morgan R. Madsen

Honors Program: Senior Projects (Public)

The Cascadia Subduction Zone, located off the western coast of North America, has a long history of seismic activity, causing various geohazards such as megathrust earthquakes and tsunamis for the coastal population (Goldfinger et al., 2000; Tréhu et al., 2022). It is necessary to identify areas of greater risk, as seismic hazards will continue to affect the area due to ongoing subduction of the oceanic Juan de Fuca plate beneath the North American continent. Heavily fractured, weakened zones of oceanic crust, known as propagator wakes and pseudofaults, have been shown to correlate with greater seismicity (Ashraf and Filina, 2023a). Propagator …

Navigating Geometry With Interactive Lessons: A Collection Of Resources In Geogebra That Address Frequently Held Misconceptions, Sara Vance

Honors Program: Senior Projects (Public)

Nearly every high school student in the United States is required to take a geometry class, and for many, it’s unlike any math class they’ve taken before. Additionally, there are certain topics with which past and present geometry students alike tend to struggle. This project was created to address these issues; my goal is that these materials will help students better understand these topics and clear up their frequently held misconceptions about geometry. This project was supported by interviews I conducted with veteran high school geometry teachers with over 75 years of teaching math between them.

This collection of interactive …

Scalable Mxene-Based Textile Supercapacitors, Abaigeal Aydt

Honors Program: Senior Projects (Public)

The demand for flexible and wearable energy storage devices for portable applications has led to the exploration of textile-based supercapacitors (TSCs). TSCs will allow for the creation of a new class of energy harvesting and storing technology directly into our clothing and will require using non-toxic and/or biocompatible materials. This will result in a greener and more sustainable path to address the challenges at the nexus of energy, mobility, and sustainability. To fabricate a TSC, a yarn made of fibers, such as wool or cotton, is coated with MXene flakes; MXenes are composed of transition metal carbides, nitrides, or carbonitrides …

Unveiling The Stigma: Doctor Mental Health And Intervention Strategies, Joseph Heirigs

Honors Program: Senior Projects (Public)

Background

The mental health of physicians is a pressing issue that has received increasing attention in recent years. The alarmingly high suicide rates for physicians underscores the critical need to address the mental health challenges that doctors face. Physicians are exposed to stressors that are unique to their profession, including high-stakes decision making, long work hours, traumatic patient situations, and the emotional toll of patient care. These challenges contribute to high rates of anxiety, depression, burnout, and other mental health issues. However, despite these factors, physicians are often reluctant to seek mental health treatment due to fears of professional repercussions, …

Extraterritorial Civil Liability After Mallory: A Potential New Weapon For Anti-Abortion States In The Interstate Abortion War, Velma Lockman

Nebraska Journal on Advancing Justice

Dobbs v. Jackson Women’s Health Organization marked the culmination of a decades-long movement to overturn the constitutional right to abortion established in Roe v. Wade. The decision commenced an interstate abortion war, in which anti-abortion states are now seeking to enforce their anti-abortion statutes in pro-abortion states. One such statute is Senate Bill 8 (“S.B.8”), a Texas anti-abortion statute that utilizes civil liability to prosecute anyone for “aiding or abetting” abortion.

The year after Dobbs, the Supreme Court issued their opinion in Mallory v. Norfolk Southern Railway Company, which upheld a Pennsylvania consent-by-registration statute and allows Pennsylvania courts to exercise …

Ecarrots: Prison Control And Profits From Correctional Tablets, Justin Iverson

Nebraska Journal on Advancing Justice

In recent years, tablets have gained tremendous popularity behind bars for their ability to expand access to educational and rehabilitative services for people in prison. However, there are downsides to tablet implementation, including high costs at the expense of a captive population and shifting power dynamics resulting in possible volatility. This Article examines the use of correctional tablets in jails and prisons as mechanisms for administrative control and profit-making in an era of beleaguered correctional budgets. It also considers legal and policy implications related to the disproportionately negative impact of the introduction of tablets on people in poverty, increased dependency …

Initial Results From An Iterative Program Design For Educating Science Education Leaders, Elizabeth B. Lewis, Elizabeth Hasseler, Rachel Benzoni, Gina S. Matkin, Wendy Smith, Daniel R. Claes, David M. Harwood, L. J. Mcelravy, Dawn Jaramillo

Department of Teaching, Learning, and Teacher Education: Faculty Publications

Slides of a presentation given at the 2025 Annual International NARST Conference (March 23-26, 2025 : National Harbor, Maryland, United States) covering the initial results from an iterative program design for educating science education leaders.

Includes: Introduction, study rationale, grant-funded project and study focus, University of Nebraska-Lincoln National Science Foundation Noyce MTF project objectives, conceptual framework, ACESSES Framework for Equitable Science Learning, literature review overview, methodology, approach, research question, participants, data sources, analytic methods, research instrument, and overview of associated papers.

Spoken Word Percussion And Its Intersection With Communication, Gwen Leuschen

Honors Program: Senior Projects (Public)

Music is a form of communication, whether expressing emotion, telling a story, or delivering information. Communication is widely used in music. This communication takes place by conveying ideas through the sound produced by performers. This form of musical communication cues the audience into the messages, information, and emotions the composers intended. However, when text or spoken word is implemented into music, how does this affect the communication, and how can this be analyzed? This paper explores the history of music and spoken word, explains applicable communication theories, and finally applies these theories to music with spoken word, emphasizing percussion.

Cardiometabolic Benefits Of A Non-Industrialized-Type Diet Are Linked To Gut Microbiome Modulation, Fuyong Li, Anissa M. Armet, Katri Korpela, Junhong Liu, Rodrigo Margain Quevedo, Francesco Asnicar, Benjamin Seethaler, Tianna B. S. Rusnak, Janis L. Cole, Zhihong Zhang, Shuang Zhao, Adele Gagnon, Edward C. Deehan, Joao F. Mota, Jeffrey A. Bakal, Russell Greiner, Dan Knights, Nicola Segata, Stephan C. Bischoff, Laurie Mereu, Andrea M. Haqq, Catherine J. Field, Liang Li, Carla M. Prado, Jens Walter

Department of Food Science and Technology: Faculty Publications

Industrialization adversely affects the gut microbiome and predisposes individuals to chronic non-communicable diseases. We tested a microbiome restoration strategy comprising a diet that recapitulated key characteristics of non-industrialized dietary patterns (restore diet) and a bacterium rarely found in industrialized microbiomes (Limosilactobacillus reuteri) in a randomized controlled feeding trial in healthy Canadian adults. The restore diet, despite reducing gut microbiome diversity, enhanced the persistence of L. reuteri strain from rural Papua New Guinea (PB-W1) and redressed several microbiome features altered by industrialization. The diet also beneficially altered microbiota-derived plasma metabolites implicated in the etiology of chronic non-communicable diseases. Considerable …

Gravel Road Performance Enhancement, Bora Cetin, Kristin Cetin, Charan Sai Vangaveeti, Mehdi Bulduk, Md Mahir Asif

Nebraska Department of Transportation: Research Reports

Nearly 30% of roads in the U.S. are unpaved, significantly impacting rural connectivity with Nebraska alone having approximately 75% unpaved roads. This study systematically evaluates local materials to improve gravel road performance, reduce maintenance frequency, and decrease financial burdens on counties. Survey responses revealed that nearly 70% of counties follow NDOT specifications for gravel road design, while more than 90% lack knowledge of local material quality. The most common distresses identified were raveling, loss of crown, dust, and improper drainage. These findings indicate that construction practices rely heavily on experience, rather than systematic design, highlighting the need for a performance-based …

Nebline, March/April 2025

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Be Groundwater Aware in Your Day-to-Day Life! Becky Schuerman

National Groundwater Awareness Week, March 9-15, 2025

National Nutrition Month: Food Connects Us, Alyssa Havlovic

Recipe of the Month: Wild Vegetable Salad, Alyssa Havlovic

Prepare Your Landscape’s Spring Game Plan, Sarah Browning

Garden Guide: Things to Do This Month, Mary Jane Frogge

2025 GROBigRed

Embracing the Puddle: The Joy of Rainy Day Outdoor Play, Hayley Jackson Perez

Agronomic Practices to Reduce Nitrate Losses to Groundwater, John Nelson

Ethan & Morgan Gabel Attend National 4-H Congress

4-H Horse Teams at Nationals

Teen Council 4-H’ers Team Up to Lead Overnight Lock-in

Heart of …

Syncretic Spirits / Espíritus Sincréticos, Angelica Tapia - Estrada

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

Syncretic Spirits / Espíritus Sincréticos is a multimedia exhibition that invites viewers into a fantastical space where cultural identity and perception intertwine. Colorful shaped panels, sculptural installations, prints, and drawings bridge physical and metaphysical realms. Personal archetypes intuitively inspired by natural forms drive the work.

Influenced by the dualities of my upbringing as a first-generation Mexican American, I was immersed in Mexican culture through my family traditions while finding a home in the nurturing embrace of the heartland. The work has become a means of reclaiming a new layered sense of self, disentangling from my Catholic upbringing, embracing indigenous healing …

Contraceptive Hormone Influences On The Role Of Primary Reinforcement And Reinforcer-Enhancement In Nicotine Self-Administration, Kathleen Robin Mcnealy

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

Hormonal contraceptives contain a synthetic estrogen (e.g., ethinyl estradiol/EE) and/or a synthetic progestin (e.g., levonorgestrel/LEVO) and can exacerbate nicotine intake. However, whether altered intake reflects changes in nicotine reinforcement or enhancement by nicotine of co-occurring reinforcers is unknown. This reinforcer-enhancement effect is evidenced in rats when nicotine self-administration is increased by the presence of a visual stimulus (VS) reinforcer. This dissertation examined the effects of EE and LEVO on nicotine reinforcement and reinforcer-enhancement in ovary-intact female Sprague-Dawley rats. Rats were implanted with a jugular catheter and assigned to receive daily injections of EE (Vehicle, 0.125 [Low], or 0.18 [High] μg/day; …

Beyond Memory: The Transmission Of Trauma, Identity, And Resilience In Grandchildren Of Holocaust Survivors, Harper Gordman

Honors Program: Senior Projects (Public)

The present study aims to investigate how third-generation Holocaust survivors (3G) articulate and experience intergenerational trauma. By conducting narrative interviews with five third-generation survivors, six main themes emerged: (1) Early Awareness and Understanding, (2) Transmission of Trauma, (3) Family Communication Patterns, (4) Identity Formation and Jewish Connection, (5) Responsibility to Preserve Memory, and (6) Contemporary Relevance. The participants communicated experiencing anxiety and protective behavioral patterns likely linked to their family history, while also developing high levels of resilience. Many reported feeling a great personal responsibility to preserve their family’s stories and experience a deep connection to their Jewish identity. Although …

Under The Veil: Women's Head Coverings In Tudor England, Savannah Toth

Honors Program: Senior Projects (Public)

This thesis seeks to discover and analyze the agency and meaning of the role of women’s head coverings and veils within the context of Tudor Christianity, society, and the fashion world of English culture. By observing the usage of the veil through various lenses, this thesis examines the nuance of the veil as an object and actor in Tudor society that enables yet prohibits personal choice for women. This research uses various sources such as Tudor paintings and portraits, surviving pieces of garments, and written accounts to paint a picture of the impact and significance the veil had in every …

Applications Of Archaeal Antioxidant Coenzyme M As An Agricultural Biostimulant, Jeremy Hunter Brown

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

As the demand to meet global food security goals continue to increase, the need to increase efficiency and productivity of agricultural output also rises. This calls for innovative and cost-effective methods for improving plant growth and yield. Here we explore how antioxidants, molecules that inhibit oxidation and are necessary for redox based signaling and redox homeostasis, can be utilized as chemical biostimulants. Specifically, we investigated Coenzyme M, an antioxidant from archaea that holds potential economic advantages over other antioxidants. Chapter 1 provides a comprehensive review of antioxidants and how exogenously application of them affects plant growth and biology, highlighting the …

Reassurance And Resolve: Enhancing U.S. Extended Deterrence Credibility In Europe, Andrew Ornduff

Honors Program: Senior Projects (Public)

In the modern international security environment, extended deterrence and assurance remain critical components to the deterrence of the North Atlantic Treaty Organization’s (NATO’s) competitors and threats. Within this organization, the United States plays a crucial role as the major nuclear power that supplies extended nuclear deterrence to its NATO allies. To enhance the credibility of its extended deterrence commitments, the U.S. practices various forms of assurance for its allies. This paper examines the extended deterrence relationships between the U.S. and France, Germany, and Estonia. It analyzes what assurance tools and strategies have been advantageous, disadvantageous, or irrelevant to the credibility …

The Importance Of Public Health In College Populations: Why Vaccines Are Important, Kashish Poore

Honors Program: Senior Projects (Public)

This paper examines the importance of vaccines in college populations, where high-density living environments create unique vulnerabilities to infectious disease outbreaks. Despite vaccine mandates at most institutions, research indicates that many college students possess incomplete understanding of vaccine mechanisms and importance. The paper addresses three interconnected aspects: the biological foundations of vaccine-induced immunity, the significance of vaccination in collegiate settings, and the current state of vaccine literacy among students. Historical outbreaks on campuses, including meningitis at Princeton and mumps across several institutions, highlight the consequences of undervaccination. Social media misinformation has contributed significantly to vaccine hesitancy, particularly since COVID-19. The …

Too Much Of A Good Thing: Lessons From Compromised Rootworm Bt Maize In The Us Corn Belt, Ziwei Ye, Christina Difonzo, David A. Hennessy, Jinhua Zhao, Felicia Wu, Shawn P. Conley, Aaron J. Gassmann, Erin W. Hodgson, Bryan Jensen, Janet J. Knodel, Bradley Mcmanus, Lance J. Meinke, Andrew Michel, Bruce Potter, Nicholas J. Seiter, Jocelyn L. Smith, Joseph L. Spencer, Kelley J. Tilmon, Robert J. Wright, Christian H. Krupke

Department of Entomology: Faculty Publications

Widespread use of genetically engineered maize targeting the corn rootworm complex (Diabrotica species) has raised concerns about insect resistance. Twelve years of university field trial and farm survey data from ten United States Corn Belt states indicate that maize hybrids expressing toxins derived from the bacterium Bacillus thuringiensis (Bt maize) exhibited declining protection from rootworm feeding with increased planting while pest pressures simultaneously decreased. The analysis revealed a tendency to overplant Bt maize, leading to substantial economic losses; this was particularly striking in eastern Corn Belt states. Our findings highlight the need to go beyond the “tragedy of the …