Digital Commons Network^™

Exploring Constructionist Pathways For Generative Ai In Education, Gretchen K. Larsen, Justin Olmanson, Azadeh Hassani

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

In this study, we aim to better understand the effects of generative AI within a constructionist learning design. We explore participants’ experiences in a graduate level course on Artificial Intelligence in Education, where generative AI is studied as: a cultural object to understand and critically evaluate, an interactive learning technology, and a creative material generator. Students explored AI in education via Python, philosophical and empirical scholarship, and generative AI. They applied this knowledge to the design and prototyping of a learning technology related to their professional backgrounds and interests. Methodologically, our study offers an ethnographic description of constructionist approaches to …

Learning Educational Technology Prototyping With Generative Ai, Justin Olmanson, Azadeh Hassani, Gretchen K. Larsen

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

In this study, we use ethnographic methods, grounded theory, and an iterative analytical approach to explore participant experiences and strategies for engaging generative AI in support of both learning how to prototype educational technologies and learning to code. We examine how ChatGPT and Giuseppe (a scaffolded co-coding interface of our own design) influence students’ approaches to prototyping and programming. This study contributes to the field by: identifying specific challenges and affordances of generative AI in prototyping and educational technology development contexts; and offering insights into how educators, students, and learning technology developers can integrate generative AI in formative educational technology …

Crisis Response Hospital Physical Layout Considerations During Covid-19: A Framework For Surge Preparedness, Future Investigations, And Analysis, Golnoosh Abdolahzadeh

Durham School of Architectural Engineering and Construction: Dissertations, Theses, and Student Research

This thesis investigates the intersection of hospital design and operational performance during health emergencies, explicitly focusing on layout modifications in emergency departments. The study is structured around four key components. First, it explores hospitals' significant challenges during the COVID-19 pandemic through data collected from interviews with Nebraska hospital leaders. Second, the research introduces a surge-based conceptual framework to guide hospital responses during crisis events. Developed from empirical data, the framework highlights the importance of flexible spatial planning and information-driven decision-making. Third, the study focuses on hospital physical layout considerations, identifying features that either supported or hindered Nebraska hospital operations during …

Do Voters Shake Off Policy Stances? A Look Into The Impact Of Celebrities On Policy Recall, Alyssa A. Noe

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

Celebrities try to influence politics by leveraging their ability to command attention. But does a celebrity’s endorsement of a policy impact citizens’ ability to recall the policy? This paper examines if people’s information processing, specifically policy recall, is impacted by a celebrity’s endorsements. Data was collected at the University of Nebraska-Lincoln during the fall 2024 semester using a student sample. Participants were randomly assigned into three experimental groups. I hypothesize that the more recognizable a celebrity is the more likely people are to be able to recall the policy they posted. By using Taylor Swift as the well-known celebrity and …

Heartbeat Of The Heartland: Sonic Engagement With Hip-Hop In The American Midwest, Lauren R. Millhorn

Department of English: Dissertations, Theses, and Student Research

This project analyzes Hip-Hop artists from the American Midwest through the context of the Midwest’s construction as a nostalgic, peaceful area where conflict seems nonexistent. This study applies Adam Ochonicky’s concept of nostalgic spatiality, or “instances in which nostalgia is projected onto a physical environment, thereby altering the perception, understanding, and/or experience of that space and its accompanying cultural sphere” (Ochonicky 29) to close readings on Midwest Hip-Hop texts. In the case of the Midwest, projected nostalgia is rooted in whiteness and propels the narrative that the Midwest is predominantly occupied by white people who maintain its peace and serenity …

Identification Of Antigens For Food Allergy And Food Allergen Detection, Ellenor Sell

Department of Food Science and Technology: Dissertations, Theses, and Student Research

Antibody-based allergen testing is an essential part of allergen management in the food industry. These methods directly detect one or more molecules of the allergenic foodstuff (target’ molecule(s)) and the presence of the allergenic foodstuff is inferred. The identity of these target molecules is crucial to the performance of the method and the interpretation of results. The goal of this study was to develop protein/antibody capture methodology for the identification of antibody binding partners using mass spectrometry.

This study is broken down into three separate projects: the characterization of the antigen-antibody complexes present in sandwich ELISAs, LFDs, and human sera. …

Modules Of Finite Projective Dimension And Singularities, Nawaj Kc

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

In the first part of this thesis, we study liftings of modules of finite projective dimension. We introduce a notion of “Serre liftable” modules and deduce applications to multiplicity conjectures in local algebra. In the second part, we introduce and study a module of mixed K\"ahler differentials for finite algebras over ramified discrete valuation rings of mixed characteristic. We state and prove a Jacobian criterion for computing the singular loci of such algebras.

Advisors: Jack Jeffries and Mark Walker

Using Permutation Groups To Identify Family Of Capacity Achieving Codes, Daniel Joseph Welchons

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

When communicating over a noisy channel, the probability of message interference sets a maximum possible transmission rate known as the channel capacity. Any family of codes which have rates converging to the channel capacity and arbitrarily low probability of decoding failure is called capacity achieving. Such codes have been known to exist since the birth of information theory but are difficult to find explicitly. It has recently been shown that the permutation groups of a family of codes can be used to show that the family is capacity achieving on the q-ary erasure channel.

This this thesis seeks to …

Ediacaran Paleocommunity Structure, Body Size Evolution, And The Rise Of Complex Animals, Matthew Philip Craffey

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

The Ediacaran period (635-538ma) is a key interval in the evolution of life as it records the first macroscopic animal communities. Major extinction pulses appear to have altered the composition of the global marine biosphere between each sub-interval of the Ediacaran Period: the Avalon, White Sea, and Nama assemblage Zones. While considerable attention has been paid to the causes of these extinction pulses, less has been afforded to the consequences of Ediacaran biotic turnover for community organization and function. Moreover, it is unclear how body size - the defining trait of macrofauna - affected the transition between animal groups across …

A Study Of Rachel Galinne’S Dybbuk For Solo Clarinet: A Classical Work With Klezmer Influences, Rachel S. Levison

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

Composer Rachel Galinne self-identifies first and foremost as an Israeli with Swedish roots. She was born and raised in Sweden to Holocaust survivors and always felt a deep connection to Jewish traditions and culture, leading her to immigrate to Israel. Her compositions are derived from her formal education in musicology and composition in contemporary music, as well as from her Jewish community. Her Jewish heritage is represented in her compositions through text, motivic ideas, and specific topics. Dybbuk for solo clarinet is an excellent example.

This solo follows the perspective of Leah, one of the main characters in Solomon Ansky’s …

Influence Of Biotic And Abiotic Factors On Decomposition And The Determination Of Time Since Death: Applications Of Forensic Entomology And Taphonomy, John Oladapo Obafunwa

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

The determination of the postmortem interval (PMI) is essential for the investigation and successful prosecution of suspected cases of homicide. While the forensic pathologist might be able to draw fairly accurate conclusions during the initial 24–36 hours, beyond this period, the assistance of other experts like forensic entomologists and taphonomists would be required. The present study was designed to observe the postmortem changes in Sus scrofa placed in a cage in Nebraska, located in the American Central Great Plains. The setting is in an open grassland in late spring to early summer. The observed variables with respect to biotic and …

Spatial Ecology And Predator–Prey Interactions Of Mountain Lions In California's San Francisco North Bay, Jacob A. Harvey

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

Understanding spatial ecology and predator-prey interactions are central to wildlife ecology and conservation. We tracked mountain lions with GPS telemetry to evaluate space use, predator-prey interactions, and resource selection in California’s San Francisco North Bay, USA. In Chapter 1, we evaluated the influence of human disturbance on home range size, prey composition, and kill rates on black-tailed deer (Odocoileus hemionus columbianus) across an urban-rural gradient. Both males and females increased home range size with increasing development at low to moderate levels of development, but female home range size stabilized across greater proportions of development while male home range …

Maggot Mass Effect On The Development And Survival Of Forensic Blow Flies, Akomavo Fabrice Gbenonsi

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

Forensic entomology scientists use blow flies' developing patterns to estimate the postmortem interval (PMI). However, larval aggregations produce metabolic heat, resulting in complex microclimates that may change growth timetables. This study investigates how larval density and associated temperature changes affect the development and survival of two forensically essential blow fly species, Lucilia sericata and Calliphora vicina.

This study examined how larval density and associated thermal profiles affect the development of both blow fly species. Using a split-plot design, we tested four larval densities at 25°C and 30°C, with temperature gradients measured via thermocouple at four mass positions three times …

Assessing Spatial And Temporal Variation In Photoprotective Responses Of Deciduous And Evergreen Tree Canopies With Leaf Spectroscopy, Alexander Piper

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

Environmental conditions frequently prevent carbon fixation by plants, leading to the absorption of excess light that can damage photosynthetic machinery if not dissipated. To do so, plants utilize several photoprotective mechanisms, some detectable remotely using Photochemical Reflectance Index (PRI). Two components of PRI correspond to the facultative engagement of the xanthophyll cycle (ΔPRI) and constitutive changes in xanthophyll pigment pool sizes (PRI0), representing distinct mechanisms regulating shorter and longer-term photoprotection, respectively. Our understanding of interspecific and intraspecific variation in these mechanisms is limited, primarily because PRI components are often not clearly distinguished. This study aimed to assess the variation in …

Culture And Context: How Frames Of Teaching And Of Learning Mathematics Form And Change For Graduate Student Instructors, Johan Benedict A. Cristobal

Department of Mathematics: Dissertations, Theses, and Student Research

Why do instructors teach the way that they do? This question is key in understanding how and why asset-based or deficit-based practices are enacted in the classroom. In consequence, this question also gives insight into how the environment where students learn is shaped. Mathematics education research, in particular, has been concerned with how instructors respond to students’ contributions in the classroom and how these ways of responding can (dis)empower students.

One way to answer this question is to understand how instructors frame their own teaching and their students’ learning. Frames are mental constructs which help individuals filter details, interpret information, …

Radar Precursors To Severe Weather Reports In Left-Moving Supercells, Eric A. Carothers

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

While much research has examined dual-polarimetric signatures of right-moving supercells, very little has been done with left-moving supercells. Given that left-moving supercells are thought to be disproportionate producers of large hail, understanding their internal dynamics is vitally important. This study examines differences and trends in the dual-polarimetric signatures of left-moving supercells to identify precursors to severe weather reports. A dataset of left-moving supercells associated with severe weather reports was created. These storms are processed with an automated analysis algorithm that identifies and quantifies the polarimetric signatures in each storm. A method for analysis of differences and trends in their dual-polarization …

Sodium And Potassium In Health And Cellular Function, Jordyn Branz

Honors Program: Senior Projects (Public)

Sodium (Na⁺) and potassium (K⁺) are essential electrolytes that regulate numerous physiological processes. These include cell function, nerve transmission, and muscle contraction. The Na+/K+-ATPase plays a critical role in maintaining the balance of these ions by actively transporting three sodium ions out of the cell and two potassium ions into the cell against their concentration gradients. This process is vital for maintaining the resting membrane potential and supporting the function of excitable cells. The Na+/K+-ATPase consists of two main subunits, with the alpha-subunit being primarily responsible for ion transport activity. Isoforms alpha1, alpha2, and alpha3 are tissue-specific and contribute to …

A Comprehensive Analysis Of Virtual Reality In Modern Healthcare Education, Adarsha Ganesan

Honors Program: Senior Projects (Public)

This thesis evaluates the effectiveness of virtual reality (VR) in healthcare education through multiple facets of evaluation: educational outcomes, accessibility considerations, and financial viability. Drawing from an extensive literature review on existing research and a case study of the University of Nebraska Medical Center (UNMC) College of Nursing's "Journey Through the Kidney" VR experience, this analysis examines how technology can transform modern medical education. While research shows mixed results regarding virtual reality’s impact on assessment outcomes, studies demonstrate increased student motivation and engagement, which can have lasting downstream effects on the quality of learning. Accessibility analysis reveals both opportunities and …

Advancing Mitochondrial Dna Visualization And Dynamics In Plants: Application Of The Mt-Hi-Ness Fluorescent Marker, Madeleine H. Faber

Honors Program: Senior Projects (Public)

Mitochondrial DNA (mtDNA) plays a crucial role in cellular energy production and inheritance, yet its dynamics and exchange remain poorly understood in plant systems due to limitations in visualization techniques. Traditional visualization methods such as exogenous DNA stains and fluorescent protein markers present challenges in specificity and live-cell imaging. To address this challenge, we adapted the MT-HI-NESS fluorescent marker, originally developed for mammalian cells, for use in plant mitochondrial studies. Using Arabidopsis thaliana as a model system, we employed mitochondrial targeting sequences (IVD and AOX) to ensure accurate localization and to confirm mtDNA binding specificity. The validation process included fluorescence-based …

Understanding Automation From A Computer Science Perspective, Matthew Donsig

Honors Program: Senior Projects (Public)

This thesis looks into automation and analyzes its benefits and problems. It begins with an explanation of a capstone project, automating the UNL State Museum’s reservation system. Problems of automation are presented in unsuccessful attempts and some pitfalls of automation. Next this thesis turns to an examination of artificial intelligence in automation. Along with that, we look at bias in automation and how people can bias automated tools or be biased by them. Turning successful examples of automation and then automation in manufacturing shows its benefits. Automation creates new jobs or changes work as much as it eliminates positions. At …

The Commodification Of Native American Remains: The Use Of Native American Remains Within Educational Institutions And The Implementation Of Nagpra, Molly Nowak

Honors Program: Senior Projects (Public)

Indigenous communities have been commodified within educational institutions such as museums, universities, and governmental agencies throughout American history. Unethical collection practices have allowed for a disproportionate representation of Indigenous remains and materials within educational institutions. Indigenous bodies, funerary objects, religious materials, and other important cultural materials have been stolen from their communities and used for scientific discovery and education. The Native American Graves Protection and Repatriation Act (NAGPRA), passed in 1990, created legal protections for Indigenous graves and remains and instigates the return of the stolen materials. This project reviews the historical contexts behind the collection of Indigenous remains, the …

A Machine Learning Framework For Packet Anomaly Detection In Smartgrid Substation Networks, Sowmya Bandari

School of Computing: Dissertations, Theses, and Student Research

The increasing reliance on Smart Grid Substation Networks for efficient electricity distribution has amplified cybersecurity vulnerabilities, particularly within Supervisory Control and Data Acquisition (SCADA) systems. The IEC 60870-5-104 (IEC-104) protocol, widely adopted for communication between Remote Terminal Units (RTUs) and Human-Machine Interfaces (HMIs), lacks inherent encryption and authentication mechanisms, rendering it susceptible to sophisticated cyberattacks. Threats such as False Data Injection Attacks (FDIAs), command injection, covert attacks and replay attacks pose significant risks by manipulating grid control signals, potentially leading to undetected operational disruptions, cascading failures, or system-wide instability. Conventional signature-based Intrusion Detection Systems (IDS) often fail to identify zero-day …

Treading Lightly: The Ethics Of Instructor Il/Legibility And Neutrality In The Classroom, Marcus A. Woodman

Department of English: Dissertations, Theses, and Student Research

Instructors in the classroom often describe their experiences teaching as being a performance, which often combines authenticity with boundaries to keep certain aspects of the instructor’s life out of the classroom. For queer instructors, their performance may be especially complicated; since queer identity is less visible than other types of identities, instructors must also weigh whether or not to come out to their students. In our current political moment, where queerness has yet again become a scrutinized topic (especially when in proximity to youth), teachers have an even more difficult decision to make.

This thesis uses queer theory and queer …

Kansas City, Kansas, Vida Davidović

Department of English: Dissertations, Theses, and Student Research

KANSAS CITY, KANSAS is a thesis that operates in the tradition of expressionist dramaturgy and playwriting, taking up themes of abuse, imperialism, war, trauma, womanhood, Balkan identities, history of the Balkans, as well as the discourses of psychoanalysis and postcolonial theory. The use of different theoretical frameworks related to both international and personal politics, which are shown to be intertwined, suggests a strong relationship between political processes in the Second World Countries that had experienced many occupations throughout their history and the way women in those countries relate to the questions of body, authority, feminity, and interpersonal relationships. The play …

Physics Embedded Neural Network: A Novel Data-Free Numerical Method For Solving Computational Physics Problems, Pawan Gaire

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

A novel approach for solving partial differential equations (PDEs) using neural networks for scientific computing is introduced. The proposed approach, referred to as physics-embedded neural network (PENN), features a unique architecture that incorporates the PDE and boundary conditions information directly within the final fully-connected layer of the feed-forward neural network (NN). The key aspect of PENN is the parallel numerical embedding of a differential equation associated with physical problems within the activation function of the network’s final layer. This integration leads to a new class of computational solvers competitive with classical methods like the Finite Element Method (FEM) and capable …

Youth Sport Participation And Cognitive Development: The Need For Improved Measurement, Amelia Anne Miramonti

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

Background: Youth sport participation is associated with numerous positive developmental outcomes, including potential cognitive benefits. However, research examining sport-cognition links often uses simplistic operationalizations of sport participation and cross-sectional designs, limiting causal inference and understanding of specific sport characteristics' roles. This study aimed to develop and compare a novel, nuanced sport participation scoring method against common operationalizations in predicting cognitive outcomes in a large youth sample, while controlling for general physical activity and health as a first step towards more robust longitudinal analyses.

Methods: Data were drawn from the Adolescent Brain Cognitive Development (ABCD) Study Year 2 follow-up …

Strategies For Reducing Racial Disparities In Maternal Health Outcomes: An Examination Of The Role Of Doulas, Samavi Rafique

Honors Program: Senior Projects (Public)

Comparatively high rates of maternal morbidity and mortality remain a significant concern in the United States, particularly for Black women, who face a risk of maternal mortality that is four times higher than that of white women. Realizing the historical context of this burden requires tracing American obstetric and gynecological medicine to its 19th-century roots, where the medical experimentation of enslaved Black women occurred largely unopposed by the voices of those in power. The legacy of this is embodied in the modern maternal health crisis, marked by stark racial disparities in maternal health outcomes. As non-clinically trained professionals whose supportive …

“As If The Devil Was In Her”: Fanny Fern’S Remaking Of Authorship In The Nineteenth Century, Rowan S. Q. Havranek

Honors Program: Senior Projects (Public)

Fanny Fern revolutionized nineteenth-century literature with her unapologetically blunt and insightful commentary on social norms, education, women’s rights, and more. As a columnist for The New York Ledger, Fern challenged the conventional boundaries placed on women, blending her personal observations and experiences with sharp social critique. Because of her unflinching style and writings that addressed a wide range of topics, she became one of the most well-paid and widely read authors of her time. Yet, she was also subjected to harsh judgment. The media, particularly in the hands of her second husband, was used to damage her reputation, yet Fern …

Gap, Inc. : A Strategic Audit Of Gap, Inc. Company, Amber Hanson, Ike Mcley, Sophie Thomas, Avery Plessel, Kira Pavlik

Honors Program: Senior Projects (Public)

The following paper is a comprehensive overview of the company Gap, Inc., a leading global retailer with a diverse brand portfolio that includes Gap, Old Navy, Banana Republic, and Athleta. They compete in the Family Clothing Industry through their operation of over 3,352 brick-and-mortar stores along with offering their digital shopping platform to align with changing consumer preferences. Gap, Inc. plans to maintain financial rigor, reinvigorating its brands, and strengthening its platform. Their strengths are found in their expanding e-commerce segment and their strong commitment to sustainability. Through a broad differentiation strategy, Gap, Inc. targets a diverse consumer demographic across …

Carbon Fiber Cv Tripod Axle Design: Husker Motorsports Formula Sae, Taylor D. Boudreaux

Honors Program: Senior Projects (Public)

The 2024–2025 HMS Formula SAE senior design team successfully reduced axle system weight, cost, and improved manufacturability using a bonded tripod joint and ±45° intermediate modulus carbon fiber tube. The final design was validated on HMS 25, with no failures under rigorous testing.

Budget:
/="/"> Total project cost was $1,165.64, exceeding the initial $1,000 target due to unanticipated test rig expenses. However, per-axle production cost was reduced from $525.31 to $383.37 through in-house manufacturing, use of on-hand epoxy (DP460), and switching to cost-effective 7068 aluminum. The axle-specific cost was $766.74.

Timeline:
/="/"> Despite early delays from building a torsional testing …