Digital Commons Network^™

Soil Health Cycle, Bijesh Maharjan, Saurav Das, Vesh R. Thapa, Bharat Sharma Acharya

Department of Agronomy and Horticulture: Faculty Publications

Soil health is pivotal to agricultural sustainability. Promoting and sustaining soil health management is challenging since it involves many interdependent components and steps and is an iterative process. Herein, the soil health cycle (SHC) is proposed as a soil health management cycle encompassing human dimensions, management practices, and their effects on soil health indicators (SHIs), leading to subsequent impacts on soil functions. The SHC provides a structure for an iterative testing of changes to improve soil health. A systematic review of research publications was also conducted using the Web of Science database supplemented by Elicit AI and Scopus API searches …

Swine Influenza A Virus: Challenges And Novel Vaccine Strategies, Erika M. Petro-Turnquist, Matthew J. Pekarek, Eric A. Weaver

Nebraska Center for Virology: Faculty Publications

Swine Influenza A Virus (IAV-S) imposes a significant impact on the pork industry and has been deemed a significant threat to global public health due to its zoonotic potential. The most effective method of preventing IAV-S is vaccination. While there are tremendous efforts to control and prevent IAV-S in vulnerable swine populations, there are considerable challenges in developing a broadly protective vaccine against IAV-S. These challenges include the consistent diversification of IAV-S, increasing the strength and breadth of adaptive immune responses elicited by vaccination, interfering maternal antibody responses, and the induction of vaccine-associated enhanced respiratory disease after vaccination. Current vaccination …

Phys 211h

Department of Physics and Astronomy: Syllabi

No abstract provided.

Fish & Wildlife News: Spring 2024

Fish and Wildlife News

No abstract provided.

Phys 401/801

Department of Physics and Astronomy: Syllabi

No abstract provided.

Gsl Researcher (Spring 2024)

GSL Researcher

GSL Researcher (Spring 2024)

Greetings

People

Range and forage update

Ranch update

Highlighted research

Technical note

Ranch practicum

Publications and news

Unl Emeriti And Retirees Association Newsletter, Spring 2024

UNL Emeriti and Retirees Association: Newsletters and Other Materials

University of Nebraska-Lincoln Emeriti and Retirees Association Newsletter, Spring 2024

Phys 142

Department of Physics and Astronomy: Syllabi

No abstract provided.

Phys 812

Department of Physics and Astronomy: Syllabi

No abstract provided.

Water Current, Volume 56, No. 1, Spring 2024

Water Current Newsletter

No abstract provided.

Paving The Way For Recycled Roadways: Are Plastic Roads The Solution To Our Global Plastic Waster Crisis?, Reese Van Osdel, Katheryn Austin, Libbie Pepple, Soledad Stevanov

Environmental Engagement in the Community (ENVR 319): Student Projects

Environmental Engagement in the Community projects, spring 2024

A poster titled Paving the Way for Recycled Roadways: Are Plastic Roads the Solution to Our Global Plastic Waster Crisis? for client South Sioux City, nebraska.

Safety Evaluation Of Hawaii Dot Modified Type A-1 Flared Buried In Backslope Guardrail End Terminal, Sina Changizian

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

The Hawaii Department of Transportation (HDOT) desired to evaluate the crashworthiness of a guardrail end terminal design in which the upstream guardrail anchorage was connected to a block partially buried in a cut slope, known as a “Buried in Backslope” or BIB design. The HDOT BIB system used an upper W-beam with 8-in. deep blockouts attached to W6x9 steel posts and a lower W-beam rubrail located 3 in. below the upper rail. The system used two horizontal flares: 7.4:1 near the upstream anchor block and a 13:1 flare through the ditch.

Critical impact points (CIPs) were identified and recommended for …

Hilling As A Management Tactic And Tool For Understanding Soybean Gall Midge (Resseliella Maxima Gagné), Pragya Gupta

Department of Entomology: Dissertations, Theses, and Student Research

Soybean gall midge (Resseliella maxima Gagné, SGM) emerged as a new species in the United States Midwest in 2019, causing injury to soybean (Glycine max L.) Infestation of R. maxima starts with females laying eggs in the fissures or cracks that develop at the base of soybean during the V2-V3 growth stage. The emerged larvae feed on the stem internally, leading to wilting and death of the plants. With knowledge gaps in biology and behavior, management strategies for this pest are challenging. Hilling is a cultural practice causing soil to cover the base of stems and is …

Characterizing And Developing Chemistry Students’ Data Analysis And Interpretation Of Chemical Data, Stephanie A. Berg

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

All chemistry students must develop competency in analyzing and making sense of data. However, there are many difficulties that chemistry students may experience while analyzing data. Many students may not use relevant prior knowledge to aid in making sense of data, or they may not form conclusions using all the data provided. Additionally, prior knowledge seems to influence one’s data analysis, but little is known about how students use it to make sense of data. Thus, I interviewed undergraduate students as they analyzed graphical data for a task and characterized how they used their prior knowledge throughout. My findings suggest …

Examining The Role Of Immersive Technologies In Preparing Preservice Elementary Teachers: Augmented Reality, Integrated Stem, Teaching Self-Efficacy, And Technology Self-Efficacy, Deef Allah Al Shorman

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

This dissertation, utilizing a mixed-methods approach within a design-based research (DBR) framework, investigated the impact of augmented reality (AR) technology on the self-efficacy of preservice elementary teachers (PSTs) in integrated STEM teaching and technology. Incorporating both a pilot study and a subsequent dissertation study, the research specifically focused on the effects of AR GeoGebra. The key results that emerged from the pilot and dissertation studies highlight AR's potential to significantly enhance PSTs' STEM teaching self-efficacy. In both studies, the treatment group that engaged with AR GeoGebra showed substantial improvements in integrated STEM teaching self-efficacy. Additionally, in both studies, participants from …

Novel Insights Into The Autoimmune Mechanisms In Coxsackievirus B Infections And Their Prevention By Vaccination, Mahima Theresa Rasquinha

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

Coxsackievirus Bs (CVBs) are RNA viruses of the genus Enterovirus belonging to the Picornaviridae family. CVBs commonly infect humans, and multiple CVB types can induce similar diseases such as myocarditis, pancreatitis, and type 1 diabetes (T1D). Although CVB infections can lead to the generation of autoantibodies, their role in disease is poorly defined, and vaccines are not available to prevent or minimize these infections. To fill these gaps, we first analyzed the autoantibody repertoire in mice infected with CVB3 by Phage ImmunoPrecipitation Sequencing (PhIP-Seq) and identified autoantibodies for several novel antigens not previously reported. The data were validated using enzyme-linked …

Ferroelectric Control Of Topological Properties Of Two-Dimensional Materials, Kai Huang

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

Topological characteristics, such as magnetic quasiparticles like skyrmions, and the presence of anomalous and quantum Hall effects, have significantly propelled the field of spintronics. The recent discovery of two-dimensional (2D) ferroic materials opens up a novel platform for incorporating these properties within atomic-thin layers, offering potential advancements in the creation of compact spintronic devices. This dissertation focuses on the exploration of topological features of 2D van der Waals (vdW) materials through first-principles density functional theory calculations. The formation of magnetic skyrmions in 2D vdW ferromagnet Fe₃GeTe₂ driven by proximity of 2D ferroelectric In2Se3 are studied. The interfacial …

Stealth Morph Intervention: A Single Case Mixed Methods Design, Kristen Elise Job

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

Students who are considered “Stealth Dyslexics” may use their gifts and talents to mask their disability until the time comes when the rigor of academics peels away the mask and students are identified in middle or high school with dyslexia or reading difficulties. The primary aim of this mixed methods study was to investigate a reading fluency intervention, Stealth Morph, on identified twice exceptional (2E) students with stealth dyslexia. The intervention uses Greek and Latin roots as a morphemic approach to help students access the building blocks of academic words. The intervention consisting of 10 units to be used daily …

Booktok's Potentials And Possibilities In Composition Studies: An Interactive Digital Collection, Hanna Varilek

Department of English: Dissertations, Theses, and Student Research

The following thesis, “BookTok’s Potentials and Possibilities in Composition Studies: An Interactive Digital Collection,” explores the phenomenon of BookTok, a vibrant out-of-school literacy program on the social media platform TikTok centered around books, reading, and literary discussions. As digital platforms continue to shape contemporary cultural landscapes, BookTok emerges as a unique space where users engage with literature and participate in discussions that influence their reading habits and preferences. This thesis explores the possibilities of BookTok in reimagining the current landscape of first-year writing and composition classrooms by introducing an interactive digital collection of BookTok content and educational resources titled, The …

Gamma Sigma Delta, Nebraska Chapter Newsletter, Issue #64 Spring 2024

Gamma Sigma Delta, Nebraska Chapter: Newsletters

President-Elect's message, John R. Ruberson

Nominations form for Gamma Sigma Delta, Nebraska chapter

2023 Outstanding Graduate Student Award nominations solicitation

2023 Teaching Award nominations solicitation

2023 Research Award nomination solicitation

2023 Extension Award nomination solicitation

2023 Award of Merit nomination solicitation

Annual dues notice

List of active members with expiration terms

Membership renewal form

Outstanding Graduate and Undergraduate Student Award fund solicitation

In memoriam:

Raymond "Gene" White (October 10, 1930-May 28, 2021)

ΓΣΔ pledge

Eli Lilly: A Managerial Strategic Audit, Colby Marsden, Ethan Domsch, Whitney Schwisow, Ryan Marlatt, Luke Buettner

Honors Program: Senior Projects (Public)

This strategic audit assesses both internal and external landscapes affecting Eli Lilly; financial, qualitative, and competitive performance; strategy and governance; and recent strategic decisions. All information has been gathered from news reports, industry analyst reports, and Lilly’s investor reports, financial statements, and notes to investors. The purpose of this strategic audit is to showcase Lilly’s success in the brand name pharmaceutical industry based on the strategic decisions made in its 147 year history.

Second Order Effects In Concrete Insulated Wall Panels, Salam A. Al-Rubaye

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

Insulated concrete panels (CIPs) have been used for over 60 years for their both structural and thermal resistance. The flexural behavior of CIPs has been investigated in recent years. The CIPs are rapidly becoming ubiquitous in the precast industry, and the tilt-up industry is initiating a study to determine their effectiveness as a tilt-up product. There are several known challenges associated with a tilt-up version of a partially composite wall and likely other unknown challenges. This study was initiated to investigate the behavior of load-bearing concrete insulated wall panels for use in tilt-up construction. The primary objective was to understand …

How College Graduates Decide To Remain In A Rural Community Post-Graduation, Benjamin J. Lamb

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

Rural Brain Drain is a critical issue facing hundreds of non-metropolitan communities across the country. Existing research that addresses the outmigration of college graduates from rural areas primarily focuses on the reasons the graduates leave, and not on what influences the decision making of those who stay. This study adds to existing retention research by; establishing an initial understanding of the influential experiences rural college students have that contribute to their decision to stay in the rural community post-graduation, and providing an emergent theory for practice to help coalitions better assess and strategize efforts to create improved pathways to rural …

Project: Gogi, Joshua Allen Joseph Aguiar

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

“Project: Gogi” is a fully playable video game in the style of Japanese Role-Playing games (jrpgs) from the late 1980s through the early 1990s. This project is available for consumption with either Windows PC or Mac systems. This project features an original score, sound design, art, story, and gameplay systems. Three acts serve as the organizational structure, the first “character prologues” features a collection of stories introducing the playable characters and setting to the player. The second is an adventure though a dense unexplored forest culminating in a visit to a wise wizard. The third and final section is a …

Tuning Out: Intersections Of Music And Literature In The Contemporary French-Language Novel, Alexander Claussen

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

The past thirty years have seen a shift in French-language novels as authors move from the self-reflexive formal experimentation of the nouveau roman and its successors toward a literature that is again concerned with plot, character, and above all, the problems of the contemporary world. This “retour au récit” is accompanied by a resurgence of interest in writing the self (through experiments in autofiction), the past (through explorations of collective memory and collective guilt), and the present (through novels that challenge existing social structures and seek to define and develop new collective or national identities). This dissertation examines the (re)turn …

Or To Be Eaten Alive, Christopher Williams

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

“or to be eaten alive'' is a multimedia exhibition in which I merge my own coming of age story with a mythological ecology. In this work I reclaim my queer identity by communing with my past selves in a fantasy world created through the lens of Queer Ecology and Queer Eco-Futurism. The visuals in this exhibition obscure reality. They are abstractions of the landscapes I occupy—particularly the Tallgrass prairie and Ozark ecoregions. Through a speculative, fantasy world the exhibition introduces moments of adoration, death, fracturing, growth, joy, and failure. I form, draw, color and arrange the work embracing mistakes and …

Tuning Out: Intersections Of Music And Literature In The Contemporary French-Language Novel, Alexander James Claussen

Department of Modern Languages and Literatures: Dissertations, Theses, and Student Research

The past thirty years have seen a shift in French-language novels as authors move from the self-reflexive formal experimentation of the nouveau roman and its successors toward a literature that is again concerned with plot, character, and above all, the problems of the contemporary world. This “retour au récit” is accompanied by a resurgence of interest in writing the self (through experiments in autofiction), the past (through explorations of collective memory and collective guilt), and the present (through novels that challenge existing social structures and seek to define and develop new collective or national identities).

This dissertation examines the (re)turn …

Amethod To Estimate Climate Drivers Ofmaize Yield Predictability Leveraging Genetic-By-Environment Interactions In The Us And Canada, Parisa Sarzaeim, Francisco Munoz-Arriola

School of Natural Resources: Faculty Publications

Throughout history, the pursuit of diagnosing and predicting crop yields has evidenced genetics, environment, and management practices intertwined in achieving food security. However, the sensitivity of crop phenotypes and genetic responses to climate still hampers the identification of the underlying abilities of plants to adapt to climate change. We hypothesize that the PiAnosi and WagNer (PAWN) global sensitivity analysis (GSA) coupled with a genetic by environment (GxE) model built of environmental covariance and genetic markers structures, can evidence the contributions of climate on the predictability of maize yields in the U.S. and Ontario, Canada. The GSA-GxE framework estimates the relative …

Undergraduate Biology Lecture Courses Predominantly Test Facts About Science Rather Than Scientific Practices, Crystal Uminski, Sara M. Burbach, Brian A. Couch

School of Biological Sciences: Faculty Publications

Scientific practices are the skills used to develop scientific knowledge and are essential for careers in science. Despite calls from education and government agencies to cultivate scientific practices, there remains little evidence of how often students are asked to apply them in undergraduate courses. We analyzed exams from biology courses at 100 institutions across the United States and found that only 7% of exam questions addressed a scientific practice and that 32% of biology exams did not test any scientific practices. The low occurrence of scientific practices on exams signals that undergraduate courses may not be integrating foundational scientific skills …

Image Filtering To Improve Maize Tassel Detection Accuracy Using Machine Learning Algorithms, Eric Rodene, Gayara Demini Fernando, Ved Piyush, Yufeng Ge, James C. Schnable, Souparno Ghosh, Jinliang Yang

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Unmanned aerial vehicle (UAV)-based imagery has become widely used to collect timeseries agronomic data, which are then incorporated into plant breeding programs to enhance crop improvements. To make efficient analysis possible, in this study, by leveraging an aerial photography dataset for a field trial of 233 different inbred lines from the maize diversity panel, we developed machine learning methods for obtaining automated tassel counts at the plot level. We employed both an object-based counting-by-detection (CBD) approach and a density-based counting-by-regression (CBR) approach. Using an image segmentation method that removes most of the pixels not associated with the plant tassels, the …