Digital Commons Network^™

Carmen Manrique De Quintero: A Forgotten Legacy In Colombian Piano Music, Lina Maria Luisa Marín Diaz

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

This doctoral document investigates the life and piano works of Carmen Manrique de Quintero (1871–1931), a pivotal yet overlooked figure in Colombian music history. Positioned as a stylistic bridge between the nineteenth-century estética del salón [salon aesthetics] and the professionalization of the Colombian composer, Manrique de Quintero’s output represents a sophisticated synthesis of European forms and Colombian national rhythms. Despite her membership in the influential Garay artistic lineage and her prolific body of work, her legacy has suffered from editorial blurring, fragmented documentation, and systematic intellectual appropriation. Using a multidisciplinary approach of genealogical reconstruction and artistic archaeology, this study restores …

Electron Emission From Unactivated Gaas: Towards The Development Of Novel Sources Of Spin-Polarized Electrons, William Truslow Newman

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

Spin-polarized electrons are commonly emitted from GaAs photocathodes with treated surfaces in a process called negative electron affinity activation. These sources require stringent vacuum conditions that are often hard to achieve and lead to significant downtimes in experiments. In this dissertation, I present new investigations of electron emission from unactivated GaAs towards the development of novel sources of spin-polarized electrons. The work entails two primary directions. The first is the investigation of electron emission using multiphoton ionization processes enhanced by nanoscale surface structures. We explore GaAs electron sources including, shards, nanotip arrays of pyramid structures, wedges, and ion-milled tips. The …

Program And Proceedings, The Nebraska Academy Of Sciences 1880–2026: 146th Anniversary Year, One Hundred-Thirty-Sixth Annual Meeting

Nebraska Academy of Sciences: Programs and Proceedings

Program and abstracts of the proceedings for the Nebraska Academy of Sciences 136th annual meeting, 2025

Sessions

Aeronautics and Space Science

Anthropology

Biological and Medical Sciences

Earth Sciences

Ecology, Sustainability, and Environmental Science

Physics and Engineering

General Poster Session

2026 Maiben Lecture: Shifting Extremes: Understanding Nebraska’s Changing Climate and Preparing for What Lies Ahead, Deborah Bathke

2026 Friends of Science Awards: Julie Shaffer and Irina Filina

2026 C. Bertrand and Marian Othmer Schultz Colleaguate Schoalrship Award: Piper Ryschon and Bryce Reeson

In Memoriam: Paul Royster

An Analysis And Performance Guide Of Two Published Versions Of Jenni Brandon's Chansons De La Nature Pour La Clarinette, Joanne Lundahl

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

Jenni Brandon’s Chansons de la nature pour la clarinette presents the clarinet as a narrating voice, guiding listeners through seven movements inspired by Aesop’s fables as retold by Jean de La Fontaine. This document traces the work’s evolution from its original publication for unaccompanied clarinet to its later adaptation for clarinet and digital delay pedal, examining the influences that shaped the piece and the compositional traits that define Brandon’s style, including her use of motives, range, meter, and formal design. Drawing on interviews with Brandon and clarinetist Christopher Mothersole, it outlines the history of both versions and establishes a foundation …

“The Left Leg Is Not Well”: Identity, Economy, And Ability In Early Modern Drama, Emma D. Whaley

Department of English: Dissertations, Theses, and Student Research

The human reality of the disabled experience often goes overlooked by scholars analyzing early modern literature. Most scholarship seems to interpret disability as metaphorical without examining the human who experiences it. In this paper, I will be examining disability in three early modern texts as literal and inquire into the realities of the disabled experience for the characters. A Larum for London, The Shoemaker’s Holiday, and The Fair Maid of the Exchange all prominently feature a disabled character—Stump, Ralph, and Cripple respectively. These characters offer a depth of personhood rarely examined in early modern literary scholarship, even in …

Enhancing Soybean Breeding Through Optimized Testing Networks And Sparse Designs, Arthur Martins Almeida Bernardeli

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

This dissertation addresses a central challenge in soybean breeding: how to make better selection decisions across diverse environments while working within the practical limits of field testing. Multi-environment testing is essential for evaluating breeding lines, but large testing networks are costly to maintain and difficult to interpret because genotype performance often changes across locations and years. At the same time, breeders must decide how to allocate limited field resources while still capturing the environmental and genetic variation needed for effective selection. Using yield, pedigree, genomic, and environmental data from the University of Nebraska–Lincoln Soybean Breeding Program, this dissertation explores practical …

Transitional And Turbulent Dynamics In Viscoelastic Wall-Bounded Flows, Alexia Martinez Ibarra

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

The addition of small amounts of long-chain polymers to a turbulent flow has been reported to modify the flow phenomena when compared to Newtonian flows, resulting in a significant skin-friction reduction. Although polymer-induced drag reduction has been extensively studied through both experimental and numerical studies, a unified and predictive understanding of the phenomenon is still lacking. This dissertation focuses on better understanding of this phenomenon, particularly on the transitional regime, which remains largely unexplored but is of utmost importance for both practical and fundamental purposes.

Firstly, direct numerical simulations are performed to study the effect of polymers on the laminar-turbulent …

Corrupt, Control, Repress, Noah Schimenti

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

This three-article dissertation discusses the competition for power and resources in regimes with weak or nonexistent democratic accountability. I begin with an overview in the introduction and then turn to the individual articles in each chapter. In chapter 2 I investigate the composition of post-conflict transitional power-sharing governments. I hypothesize that a greater number of rebel organizations included in the transitional government is associated with increased corruption levels. Using data on 44 post-conflict countries, I find little support for this hypothesis; the number of rebel organizations in the transitional cabinet has no effect on corruption levels.

In chapter 3 I …

Integration Of Bayesian Networks And Neural Networks For High-Dimensional Data Analysis, Cooper Schmer

Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research

High-dimensional biomedical datasets, such as omics data, present significant challenges for predictive modeling due to noise, redundancy, and computational complexity. This thesis proposes a hybrid framework that integrates Bayesian Networks (BNs) and Artificial Neural Networks (NNs) to improve classification performance of such data sets while reducing input dimensionality. Central to this work is a novel feature selection method based on d-separation, a structural property of Bayesian networks that encodes conditional independence relationships.

The proposed approach introduces a count-based d-separation metric to quantify the relevance of variables to a target outcome, along with a thresholding scheme to balance feature selection robustness …

Parents Under Pressure: Social Media’S Impact On Parents’ Mental Well-Being, Ali E. Shull

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

The rapid growth of social media has transformed how parents access information, evaluate their practices, and compare themselves to others. Although parenting content is widely consumed, limited research has examined its immediate psychological and physiological effects. The present mixed-methods study investigated how exposure to parenting-related social media content influences parental stress responses, affect, and parenting self-efficacy. Participants (N = 83) were randomly assigned to view either parenting-related videos (experimental condition) or non-parenting crafting videos (control condition). Physiological stress responses were assessed using heart rate variability (HRV) during baseline and video exposure. Participants also completed measures of negative affect and …

Bass Numbers Of Veronese Submodules And Lifting The Frobenius Trace, Taylor Jeffrey Murray

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

The first part of this thesis is inspired by the works of G. Lyubeznik, C. Hunkeke, R. Sharp, and L. Núñez-Betancourt on Bass numbers, associated primes, and injective dimension of local cohomology modules. In particular, we study the question: how do Bass numbers behave under the Veronese functors? We show for a positive integer n, a reasonably nice, graded, finitely generated algebra over field R, and a graded module M, that if the Bass numbers of M are finite over R, then so are the Bass numbers of Mⁿ/Rⁿ; this recovers …

Patient Facing Physical Therapy Clinicians’ Experience Of Leader Development Across Their Professional Span: A Phenomenological Inquiry, Judith R. Gelber

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

While healthcare professions call for leadership among its practitioners as a key function of practice, hospital systems typically employ a top town leadership structure. In physical therapy, leadership is centered around managers and educators. This leaves a gap in understanding about leadership at the level of the patient facing clinician. This study explored the experience of leader development across the career span of experienced patient facing physical therapists in the United States. The study used a hermeneutic phenomenological approach undergirded with leader development, experiential learning, and distributed leadership theories. Participant recruitment focused on patient facing physical therapists with ten or …

On The Transport Of Chloroplast Lipids, Cailin Smith

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

Chloroplasts are green, photosynthetically active organelles ubiquitous to the plant kingdom. Owing to their cyanobacterial origin, chloroplasts consist of three membranes: the outer envelope, the inner envelope, and the thylakoid, the latter of which is the site of the light-dependent reactions of photosynthesis. Not only do the lipids that make up these membranes delineate aqueous compartments, but they also respond dynamically to developmental and environmental cues, constitute the matrix that scaffolds protein machinery, and even serve as functional components of some proteinaceous complexes. However, while lipids are of vital importance to the structure and function of the chloroplast, the mechanisms …

Histopathology Image Classification Using Machine Learning, Mohammed H. Alali

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

Histopathology image classification is a critical component of cancer diagnosis. However, the gigapixel scale of Whole-Slide Images (WSIs) and the high variability in tissue staining and scanner quality across medical centers present significant computational challenges. This dissertation proposes a comprehensive machine learning framework to address these challenges, bridging the gap between theoretical models and practical clinical deployment.

First, to manage the massive dimensionality and noise inherent in WSIs, this research develops a robust feature extraction methodology. The pipeline implements a stringent tile filtering technique to eliminate physical artifacts and resolve severe class imbalances. It integrates ConvNeXt alongside an attention-based pooling …

Awareness, Protest, And Action: Women Science-Fiction Writers As Writer Activists, Carolyn Nolte

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

Following the end of World War II, science-fiction literature, which was mostly dominated by white male writers, experienced an increase in stories written by women writers. Of these postwar stories written by women, the three women writers in this dissertation imagined how their present-day experiences informed the future by exploring their concerns about humanity’s collective trajectory. By analyzing how their stories dramatize possible future social, psychological, biological, and environmental harms, this dissertation argues that these women writers’ works distinguish them as writer-activists, a concept I borrow from Rob Nixon’s work Slow Violence and the Environmentalism of the Poor.

I …

Cohomological Support Varieties Along Ring Maps, Ryan Watson

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

Inspired by Quillen’s geometric approach to study group cohomology, Avramov introduced the theory of support varieties to study finite modules over local complete intersection rings. Geometric properties of the variety encode important homological information, and this theory has been a useful tool in studying complete intersection rings leading to many advances in local commutative algebra. By the work of several authors, this theory has now been expanded to encompass any noetherian local ring. Notably, Pollitz developed the theory of cohomological support varieties over Koszul complexes and used them to answer a question of Dwyer, Greenlees, and Iyengar regarding the structure …

Bright Star: A Scenic Design, Sariah M, Roberts

Johnny Carson School of Theatre and Film: Theses, Student Research, and Creative Work

This thesis documents the process and paperwork of the scenic design and ends with a reflection on how the process affected the final product.

Director, Bobby Pieranunzi

Stage Manager, Savannah Stermer

Lighting Designer, Dean Bressler

Costume Designer, Jamie Bullins

Technical Directors, Bryce Allen, Hayden Honomichl, and Shelby Hindman

Thesis advisor: JD Madsen

Strategic Audit - Lululemon, Jared M. Loos, David Goldsmith, Madelyn Martin, Grant Taylor, Carson Downs

Honors Program: Senior Projects (Public)

No abstract provided.

Costa Rican Oboe Music By Mario Alfagüell: A Performance Guide, Ruth Moreno Calderon

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

It was not until 1972 that the modern oboe achieved a formally established professional presence in Costa Rica. This does not suggest that the instrument was absent from the country prior to this date; rather, its professional consolidation occurred with the arrival of two foreign oboists (Claudio Bondy and David Busch) and whose activities marked the beginning of systematic performance, pedagogy, and institutional continuity. As a result, the professional history of the oboe in Costa Rica has been established for only a few decades.

A central challenge is the limited size of the Costa Rican oboe repertoire and the absence …

The Impact Of State And Federal Policies On Academic Researchers: Findings From A National Survey, Dylan Ruediger, Chelsea Mccracken, Jonathan Barefield

Copyright, Fair Use, Scholarly Communication, etc.

Key findings

● State and federal policies targeting divisive concepts or DEI are shaping research agendas at scale and across disciplines. Twenty percent of all respondents, and 29 percent of researchers working in states with divisive concepts or similar laws, reported having avoided certain research topics because of state laws and policies.

● Eight percent of respondents representing a wide range of disciplines reported having had a federal grant cancelled in 2025.

● Eleven percent of respondents reported that federal and state policies restricting research activities are compelling them to seek employment out of state, to leave the academy, or …