Digital Commons Network^™

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 …

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 …

Why Politics Become Violent, John Vonnes

Honors Program: Senior Projects (Public)

A truly concrete, undisputed explanation of the emergence of ideology-based terrorism from previously peaceful political movements has to this point alluded the literature. The structural explanation comes closest to providing such an explanation, but it too is disputed and opposed by alternative theories. I therefore attempt to fulfill this gap by answering the question “why do ideology-based terrorists choose violence?” To do so, I investigate and test the viability of the structural explanation as a potential answer to this question through three case studies from across 20th century Europe, namely the Red Brigades, Francisco Franco’s Insurgency, and the 20th Century …

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 …

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 …

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 …

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 …

The Authority Of Clothes: Queen Elizabeth I And Her Succession Crisis Of 1562/63, Kalen R. Melton

Department of History: Dissertations, Theses, and Student Research

This thesis looks at the silent messaging associated with Queen Elizabeth I's clothing during her early reign. The goal of this thesis is to look at outfits Elizabeth could have worn and see what sort of messages her contemporaries in Parliament might haven taken from them. I specifically looked at Elizabeth's Parliamentary meeting from 1562/63. I did so because this meeting was early in her reign, her legitimacy was being questioned on two fronts, and she had just gotten over smallpox. Elizabeth was not known yet for her extravagant outfits, but she would have needed to have had a powerful …

Ensuring Free, Immediate, And Equitable Access To Federally Funded Research (August 25, 2022)

Copyright, Fair Use, Scholarly Communication, etc.

Ensuring Free, Immediate, and Equitable Access to Federally Funded Research (August 25, 2022)

Consumer Acceptance Of Gene-Edited Food: The Role Of Knowledge, Trust, And Information, Anubrata Deka, Syed Imran Ali Meerza, Amalia Yiannaka

Cornhusker Economics

The research aims to assess consumer preferences and attitudes toward CRISPR applications in the food sector and estimate consumer willingness to pay for a food product developed using CRISPR technology to enhance food safety and confer health benefits. Additionally, the research assesses the impact of information provision on perceptions, attitudes and willingness to pay. Specifically, we consider the potential effect of both the nature of information provided (i.e., whether it emphasizes the differences between GM and CRISPR technology or not) and the delivery format (i.e., text versus video) used to present content-equivalent information. In this context, we also assess consumer …

Exploring The Pathogen Profiles Of Ancient Feces, Drew Capone, David Holcomb, Amanda Lai, Karl Reinhard, Joe Brown

Karl Reinhard Publications

Analysis of ancient desiccated feces – termed paleofeces or coprolites – can unlock insights into the lives of ancient people. We collected desiccated feces from caves in the Rio Zape Valley in Mexico (725-920 CE). First, we extracted DNA with methods previously optimized for paleofeces. Then, we applied highly sensitive modern molecular tools (i.e., PCR pre-amplification followed by multi-parallel qPCR) to assess the presence of 30 enteric pathogens. We detected ≥1 pathogen associated gene in each of the ten samples and a mean of 3.9 pathogens per sample. The targets detected included Blastocystis spp. (n=7), atypical enteropathogenic E. coli (n=7), …

Agri-Technology Transforming Farms And Ranches Across Nebraska, Shannon Sand

Cornhusker Economics

In summary, agri-tech is reducing the demand for traditional farm and ranch labor in Nebraska while creating new opportunities in technical, analytical, and management roles. As Nebraska maintains its leadership in agri-tech, there will be a growing need for a tech-savvy and versatile agricultural workforce.

Course Portfolio: Bios 443/843 Immunology, Nicole Sexton

UNL Faculty Course Portfolios

This course portfolio relates to the Fall 2025 delivery of BIOS 443/843: Immunology, cross listed as MBIO 443 and VMBS 843 and was prepared as part of the Faculty-led Inquiry into Reflective and Scholarly Teaching (FIRST) project. BIOS 443/843 is an upper division course that introduces Immunological concepts but also connects them to up to date literature in the field of Immunology with the intent of preparing students for careers in medicine and biomedical research. In Fall of 2025 this course was restructured to incorporate additional peer-to-peer learning opportunities and more distributed assessment styles, therefore was peer-reviewed to assess the …

Effect Of Feeding Fenugreek Extract And Encapsulated Lecithin On Finishing Cattle Performance, Carcass Characteristics, And Liver Abscesses, Sofia Suarez Lorences, Rebecca L. Mcdermott, Joshua R. Benton, Robert Bondurant, Willard Lemaster, James C. Macdonald, Galen E. Erickson

Nebraska Beef Cattle Reports

Summary with Implications

A feedlot study was conducted to evaluate the effects of adding fenugreek extract and encapsulated lecithin (Furst-McNess Company, Rockford, Illinois, United States) on finishing cattle performance, carcass characteristics, and liver abscesses. Treatments were applied as a 2×2 factorial that included a control diet with no additive; a diet containing fenugreek extract; a diet containing encapsulated lecithin; and a diet containing both fenugreek extract and encapsulated lecithin. Tylosin was not included in any diets to test natural occurrence of liver abscesses. No interactions were observed between fenugreek extract and encapsulated lecithin treatments but neither feed additive impacted intakes, …

Effects Of Allocation Frequency On Cattle Performance And Forage Utilization When Swath Grazing A Sorghum-Sudangrass Hybrid In Eastern Nebraska, Thomas E. Aquino, Mary E. Drewnoski, Pedro Henrique J. Fernandes

Nebraska Beef Cattle Reports

Summary with Implications

A sorghum-sudangrass hybrid was swath grazed by growing steers (529 ± 18 lb) from November 2023 to January 2024. Treatments were offering new forage once (1X) or twice (2X) per week to determine the effect of allocation frequency on animal performance and forage utilization. Average daily gain was not impacted by treatment (1X = 0.45 ± 0.1 lb/day, 2X = 0.45 ± 0.1 lb/day). Pre-and post-graze biomass samples were collected to estimate forage utilization, which was not different between treatments (1X = 57.1 ± 3.6%, 2X = 61.1 ± 3.6%). However, there was a difference in carrying …

Chaucer’S Complaint To His Purse And Authority In The World, Paul A. Olson

Department of English: Faculty Publications

Chaucer’s Complaint to His Purse concerns more than the poet’s financial need under the new Lancastrian administration. It speaks to the limits of Henry IV’s royal authority and, through irony, to the limitations of Chaucer’s purse’s power. Underlining royal limits, Chaucer petitions the king as one who holds office through election and line but not con-quest, which is Henry’s position on his office as well. In speaking iron-ically of the purse’s authority, the poet addresses the gold that the mon-arch might grant him as if it constituted a human or divine patron, but he does so in a hierarchy of …

Understanding The Nexus Between Food Insecurity And School Readiness: A Comprehensive Analysis In Ghana, Michael Atuahene Djan, Emmanuel Yeboah, Isaac Sarfo, Michael Kpakpo Allotey, Abraham Okrah, Desmond Nii Ayitey Mettle-Nunoo, Ben Emunah Aikins, Asante Vincent Antwi, Clement Issaka Anaba, Clement Kwang

School of Global Integrative Studies: Faculty Publications

This study delves into the multifaceted challenges of food insecurity and its profound impact on school readiness among children in Ghana. Utilizing data from the Ghana Statistical Service and the Comprehensive Food Security and Vulnerability Analysis, and employing ArcGIS for spatial analysis, the research maps high food insecurity areas and overlays population density to prioritize interventions. Findings reveal a stark concentration of food insecurity in northern Ghana, worsened by adverse weather conditions, underscoring the urgency for targeted interventions. The study highlights how food insecurity extends beyond nutritional deficits, affecting socio-economic structures and family dynamics. Children in food-insecure households face significant …

Nebraska Invasive Species Council, 2025-2027 Adaptive Management Plan

Nebraska Invasive Species Program

Nebraska Invasive Species Council, 2025-2027 Adaptive Management Plan

Nebline, January/February 2025

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

2024 Extension Highlights

4-H Engaged 34,177 Youth

Nebraska Extension’s Strategic Direction

Reflflection, Growth and Whole-Person Wellness for 2025. Emily Gratopp

Recipe of the Month: Slow Cooker Chicken Tortilla Soup, Emily Gratopp

Extension’s 2025 Master Gardener Volunteer Training Begins Soon

Garden Guide: Things to Do This Month

Upcoming Green Industry Conferences

ProHort Lawn and Landscape Update

2025 Pesticide Applicator Trainings

Crop Production Clinics

Leaving a Lasting Legacy for Midwestern Farm Women

At Ag Literacy Festival, Students Learn How Agriculture Impacts Their Daily Lives

Managing Hard Water, Becky Schuerman

Don’t Let Fungus Gnats Bug You and Your Plants, Kait Chapman

2025 Lincoln …

Impacts Of Irrigated And Non-Irrigated Land Use On Convective Environments And Related Diagnostic Variables During Grainex In Nebraska, Usa, Daniel Whitesel, Rezaul Mamood

School of Natural Resources: Faculty Publications

No abstract provided.

Heat Stress Induced By Irrigation Over The Us Great Plains And Related Uncertainties, L. Chen, I. C. Achugbu, Rezaul Mamood, K. Kintziger, J. Bell, G. Meredith

School of Natural Resources: Faculty Publications

No abstract provided.

Proximal Remote Sensing: An Essential Tool For Bridging The Gap Between High Resolution Ecosystem Monitoring And Global Ecology, Z. Pierrat, T. Magney, W. Richardson, B. Runkle, J. Diehl, X. Yang, J Gamon Et Al.

School of Natural Resources: Faculty Publications

No abstract provided.

Research Report: Insights Into Community, Heather Akin, Cheryl A. Burkhart-Kriesel, Mary Emery, Katelyn Larson, Bradley Lubben, L. J. Mcelravy, Timothy Meyer, Rebecca J. Vogt

Nebraska Rural Poll

Rural Nebraskans are more positive about the current change in their communities this year but are less positive about its future. Starting three years ago, the proportion believing their community changed for the worse was more than the proportion believing it had changed for the better (similar to what occurred in 2003 and 2009). However, last year that trend reversed back to the typical pattern and continued this year. This year, more people believe their community has changed for the better than has changed for the worse. When asked about what they expect ten years from now, this year more …

Team Teaching As Honors Faculty Professional Development, Richard Badenhausen

National Collegiate Honors Council Monographs: Chapters

Discusses how team teaching may serve as professional learning and development for honors faculty in higher education and why it is valuable to frame it as such.

Hacking Through The Silos: Honors Faculty Development, Joy L. Hart, Rebecca C. Bott-Knutson, Hedi M. Appel, Jonathan D. Kotinek, Paul Knox, Susan Sumner, Noah Roerig, William L. Ziegler, Leigh E. Fine

National Collegiate Honors Council Monographs: Chapters

Based on our work with a multi-institutional honors hackathon, we examine the faculty benefits of planning and leading hackathons, focusing especially on enhanced understanding across disciplines—or hacking through academic silos.

Where Honors Education And Faculty Development Meet: Front And Back Matter, John Zubizarreta, Victoria M. Bryan

National Collegiate Honors Council Monographs: Chapters

Front and back matter

Where Honors Education and Faculty Development Meet [NCHC Monograph Series], John Zubizarreta and Victoria M. Bryan, editors

Lincoln, Nebraska, United States: National Collegiate Honors Council, 2025

Includes:

Front and back covers

Table of contents

Acknowledgments

Foreword, Victoria Mundy Bhavsar and Suketu P. Bhavsar

Introduction, John Zubizarreta and Victoria M. Bryan

About the authorsAbout the NCHC Monograph Series

List of NCHC monographs and journals

NCHC publications order form

From the back cover:

This volume contains an assorted collection of theoretical and practical essays that demonstrate the value of collaborations between honors programs or colleges and faculty development, …

2025 Nebraska Business

College of Business: Trade Publications

2025 Nebraska Business