Digital Commons Network^™

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 …

Teacher Roles In Correction: Understanding Disciplinary Alternative School Programs In Nebraska, Philip Thomas White Iii

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

Through semi-structured interviews with teachers and semi-structured interviews-turned-testimonios of students, I have sought to understand the purposes and consequences of Disciplinary Alternative Programs (DAP). Four different locations from across the state of Nebraska were utilized with 16 teachers and two students participating. Research questions considered the purpose of DAPs to better understand how these programs fit into broader systems of schooling. While highly cautious IRB oversight limited the number of students who could be participants in this study, their insights were substantially augmented by the sixteen educators from such environments who were also interviewed. Participant responses offered nuanced and …

A Collaborative Campus Community Policing Model: A Case Study In Fostering Collective Efficacy Among Students, Faculty And Staff, Hassan Ramzah

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

This qualitative, single case study explored whether and how a campus police agency’s community policing model fostered collective efficacy among students, faculty, staff members and campus police. Using Bandura’s (2000) collective efficacy theory, this study was guided by the following questions: (1) How does a campus police department use a community policing model to build partnerships with students, faculty, and staff? (2) How do police officers, students, faculty, and staff perceive these partnership-building efforts, particularly as it relates to fostering collective efficacy within the campus community? (3) Through what processes have campus police partnerships with students, faculty, and staff contributed …

Demographic Consequences Of Off-River Nesting For Piping Plover (Charadrius Melodus) And Interior Least Tern (Sternula Antillarum Athalassos) In The Lower Platte River System, Nebraska, Elsa M. Forsberg

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

Piping plovers (Charadrius melodus; hereafter, plovers) and interior least terns (Sternula antillarum athalassos; hereafter, terns) are two avian species that nest along the Lower Platte River system (LPRS) in Nebraska. In the LPRS, river sandbars provide natural nesting habitat, but off-river sites provide substantial nesting habitat especially when sandbar habitat is scarce. Although presumed to be important for the persistence of plovers and terns, off-river habitat is not self-sustaining and predicted to decline. Understanding the vital rates of plovers and terns in the LPRS will inform the role of off- river sites in the future conservation …

The Effect Of Sample Grinding On Color-Based Predictions Of Soil Organic Carbon, Mason Rutgers

Honors Program: Senior Projects (Public)

Measurements of soil color are widely accessible and can be used as indirect measures of soil organic carbon (SOC). Sensor-based soil color measurements, frequently used in quantitative studies to predict SOC, often use ground and sieved soil samples for color analysis. However, it is unknown whether the extra steps of drying, crushing, and sieving a sample improve the quantitative relationship between color and SOC. This study was conducted to evaluate color-based predictions of SOC using intact, sieved (<2 mm), and fine-ground soil samples from northwest Oklahoma. Moist soil color was measured using Munsell color charts (MCCs) and a Nix Mini 3™ portable color sensor (PCS). The color of the soil samples was measured before processing, after crushing to pass through a 2-mm sieve, and after mechanical grinding to less than 0.25-mm. Using Munsell value (from the MCC) and CIEL* (from the PCS) as predictor variables, regression analyses were conducted to develop SOC predictive functions for each physical state. The resulting coefficients of determination (R2) and root mean squared errors (RMSE) were used to assess model fits for predicting SOC. Model contrasts were calculated to evaluate significant differences between each predictive model. All models exhibited strong relationships (0.56 < R2 < 0.70, 0.20 < RMSE < 0.25) between soil lightness and predicted SOC. Models built using aggregated samples measured with both MCCs (R2= 0.70, RMSE= 0.20) and the PCS (R2= 0.69, RMSE= 0.21) produced the best results. Models built using intact samples measured using the PCS did perform significantly better on samples dark in color (CIEL* < 30). These results suggest that grinding soil samples does not improve color-based predictions of SOC using MCCs and the PCS.

Perceptions Of School Climate, Scott Siegel

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

This doctoral dissertation investigates the differences in perceptions of school climate among in-school stakeholders. The study focuses on how the participant’s role within the school and gender impact their perceptions of school climate. Surveys were administered to students and teachers in a high school setting, with quantitative analysis revealing statistical differences in perceptions among key groups. Notably, teachers demonstrated higher perceptions of school climate than students, indicating the role within the school has the potential to influence stakeholder perceptions. Additional findings include male students demonstrating higher perceptions of school climate than female students, indicating gender plays an integral part in …

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 …

Exploration Of The Mental Health Impacts Of Drought On Rural Nebraskans Via Remembered Perceptions, Grace Schleining

Honors Program: Senior Projects (Public)

Drought is a sociological phenomenon. It is a well-known occurrence across the midwestern United States; the drying out of the soil, the failing of crops, and the constant dryness and heat... this is all drought. Inspired by my earliest memory of this climate phenomenon, my research question: Can we identify negative effects of drought on rural Nebraskan mental health and/or wellbeing? In this study, rural Nebraska community members, who are involved with the agricultural sector, were interviewed. They were asked questions regarding their perceptions and stories of drought using purposive sampling and snowball sampling methods. Themes throughout indicate negative mental …

Beyond The Looking Glass: Dreams And Somnial States And Spaces In Nineteenth-Century British Literature, Anne N. Nagel

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

Poised between a waning magico-theological tradition of symbolic dream interpretation and the rising influence of scientific dream theories, which equated dreaming with disorder, the dream occupied a unique space in nineteenth-century Great Britain. Dreams were coming untethered from signification, as natural philosophers deemed their content indecipherable and chaotic. Yet vestiges of early modern beliefs could still lend supernatural power and polyphony to dreams.

This was not simply a matter of making a binary choice between two ways of thinking about dreams but instead a site of collisions and coalescences. I contend that the ways in which dreams were conceptualized in …

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 …

United States Centers For Medicare And Medicaid Services (Cms) Plan To Enhance Public Access To The Results Of Cms-Supported Research

Copyright, Fair Use, Scholarly Communication, etc.

CMS Public Access Plan and Policy (PDF)

Equality In Times Of Uncertainty: Economic Downturn And Body Image Messaging Toward Women, Ritsa Giannakas

Honors Program: Senior Projects (Public)

A vast body of literature indicates that the economy and the status of women are interlinked, with higher levels of economic well-being tending to correspond with advancements in women’s rights. However, little of this research has investigated the changes in the wellbeing of women as it pertains to their physical and mental health, especially as it pertains to exploring the impacts of economics on eating disorder rates and societal messaging toward women. This thesis investigates a novel theory linking economic uncertainty and downturn to the spread of pro-eating disorder content online, positing that economic uncertainty may coincide with a “conservative …

Identity-Driven Targeted Violence: Attending To Identity, Emotion, And Personality-Related Predictors Of Attitudinal And Behavioral Prejudice, Patrick Timothy Mcgonigal

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

Identity-driven targeted violence driven by gender identity, sexuality, race, and religion overwhelmingly impacts marginalized groups of individuals. Existing evidence suggests that acts of bias on college campuses are often unreported by students, leaving those who engage in these behaviors to continue without proper redress. A great wealth of data illustrates the deleterious impacts of identity-driven behavior on student victims, including heightened psychological distress, poorer academic performance, and lower retention. In contrast, limited research has examined relevant underpinnings of perpetrating identity-driven harassment. The current dissertation developed and disseminated a large survey to undergraduate students spanning three years of data collection. The …

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 …

Perceptions Of College Campus Climate Among Queer Female Sexual Assault Survivors, Elyxcus J. Anaya

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

One-fifth of women in the United States report at least one lifetime experience of rape (Black et al., 2011; Centers for Disease Control and Prevention, 2014; Smith et al., 2018). Sexual assault (SA)is a common experience among cisgender women college students, with 20% reporting experiencing a rape during their time in college (Cullen et al., 2000). Universities generally have resources designed to help survivors of SA, though research suggests many of these resources are underutilized by survivors. The current study was guided by social constructivism and used a transcendental phenomenology approach to explore six queer, female participants’ decision-making processes about …

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 …

Measuring Jury Perception Of Explainable Machine Learning And Demonstrative Evidence, Rachel Edie Sparks Rogers

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

Subjective pattern comparison has been subject to increased scrutiny by the courts and by the general public, resulting in an increased interest in pattern comparison algorithms that provide quantitative assessments of similarity for use by forensic scientists. While these algorithms would mark an improvement over current subjective comparison methods, individuals without a statistical background may struggle with the statistical concepts and language necessary for describing algorithmic methods. If algorithms are to be used, examiners must be able to testify about their use in a way that is accessible to the jury. In a series of studies, we conduct an assessment …

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 …

Do Bisexuals Thrive In The Corridor? Liminal Identity, Communication, And Well-Being, Katie Kassler

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

In this dissertation I aim to test direct and moderating associations between bisexual liminal identity, social identity complexity, micro-aggressions and micro-affirmations, and well-being. In Chapter One, I offer my theoretical definition of and position bisexuality as a liminal identity. Next in this chapter, I (a) hypothesize a direct association between bisexual liminal identity and well-being, (b) posit competing hypotheses related to social identity complexity as a positive cognitive appraisal moderator (i.e., social cure perspective) and negative cognitive appraisal moderator (i.e., uncertainty identity perspective) of the main effect, and finally (c) posit hypotheses related to individual- and group-aimed micro-aggressions and micro-affirmations …

Ten Poems, Bianca Swift

Department of English: Dissertations, Theses, and Student Research

TEN POEMS is a thesis consisting of a critical introduction meditating on what it means to create joyful poetry and how community shapes a body of work, as well as a collection of poems. The essay discusses my background in poetry and the many voices responsible for the final body of work.

Advisor: Hope Wabuke

Permutations, Casey Beck

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

I make pottery not only out of a passion for my material, clay, and for the complex processes of wheel throwing and atmospheric firing, but also out of a passion for living with, using, and sharing handmade objects. For me, using pottery daily is an act of celebration. My philosophy of making pots comes in part from the particular history of utilitarian pottery that has developed over the last sixty years in Minnesota and Western Wisconsin, where I went to school and began my career as a potter. More recently, the form language that I employ in my work has …

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 …

Exploration Of The Mental Health Impacts Of Drought On Rural Nebraskans Via Remembered Perceptions, Grace Schleining

Department of Environmental Studies: Undergraduate Student Theses

Drought is a sociological phenomenon. It is a well-known occurrence across the midwestern United States; the drying out of the soil, the failing of crops, and the constant dryness and heat… this is all drought. Inspired by my earliest memory of this climate phenomenon I sought to determine whether we can identify evidence of negative mental health impacts and/or well-being in rural Nebraskans due to drought, thus my research question: Can we identify negative effects of drought on rural Nebraskan mental health and/or wellbeing? In this study, rural Nebraska community members, who are involved with the agricultural sector, were interviewed. …

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 …

Micrornas In Pancreatic Cancer: Advances In Biomarker Discovery And Therapeutic Implications, Roland Madadjim, Thuy An, Juan Cui

School of Computing: Faculty Publications

Pancreatic cancer remains a formidable malignancy characterized by high mortality rates, primarily attributable to late-stage diagnosis and a dearth of effective therapeutic interventions. The identification of reliable biomarkers holds paramount importance in enhancing early detection, prognostic evaluation, and targeted treatment modalities. Small non-coding RNAs, particularly microRNAs, have emerged as promising candidates for pancreatic cancer biomarkers in recent years. In this review, we delve into the evolving role of cellular and circulating miRNAs, including exosomal miRNAs, in the diagnosis, prognosis, and therapeutic targeting of pancreatic cancer. Drawing upon the latest research advancements in omics data-driven biomarker discovery, we also perform a …

Field Testing Of Gamma-Spectroscopy Method For Soil Water Content Estimation In An Agricultural Field, Sophia Becker, Trenton E. Franz, Tanessa Morris, Bailey Mullins

School of Natural Resources: Faculty Publications

Gamma-ray spectroscopy (GRS) enables continuous estimation of soil water content (SWC) at the subfield scale with a noninvasive sensor. Hydrological applications, including hyper-resolution land surface models and precision agricultural decision making, could benefit greatly from such SWC information, but a gap exists between established theory and accurate estimation of SWC from GRS in the field. In response, we conducted a robust three-year field validation study at a wellinstrumented agricultural site in Nebraska, United States. The study involved 27 gravimetric water content sampling campaigns in maize and soybean and ⁴⁰K specific activity (Bq kg⁻¹) measurements from a stationary …

Long-Term Soil Change In The Us Great Plains: An Evaluation Of The Haas Soil Archive, Mark A. Liebig, Francisco J. Calderon, Andrea K. Clemensen, Lisa Durso, Jessica L. Duttenhefner, Jed O. Eberly, Jonathan J. Halvorson, Virginia L. Jin, Kyle Mankin, Andrew J. Margenot, Catherine E. Stewart, Scott Van Pelt, Merle F. Vigil

Department of Agronomy and Horticulture: Faculty Publications

Diverse patterns of climate and edaphic factors challenge detection of soil property change in the US Great Plains. Because detectable soil change can take decades, insights into the trajectory of soil properties frequently require long-term site monitoring and, where available, associated soil archives to enable comparisons with initial or baseline states. Unfortunately, few multi-decadal soil change investigations have been conducted in this region. Here, we document effects of dryland cropping on a suite of soil properties by comparing matched historic (1947) and contemporary (2018) soil samples from the Haas Soil Archive at three sites in the US Great Plains: Moccasin, …

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 …

Phylogenomics Of Tetraopes Longhorn Beetles Unravels Their Evolutionary History And Biogeographic Origins, Nayeli Gutiérrez‑Trejo, Matthew H. Van Dam, Athena W. Lam, Gonzalo Martínez‑Herrera, Felipe A. Noguera, Thomas J. Weissling, Jessica L. Ware, Víctor H. Toledo‑Hernández, Frederick W. Skillman Jr., Brian D. Farrell, Oscar Pérez‑Flores, Lorenzo Prendini, James M. Carpenter

Department of Entomology: Faculty Publications

Tetraopes longhorn beetles are known for their resistance to milkweed plant toxins and their coevolutionary dynamics with milkweed plants (Asclepias). This association is considered a textbook example of coevolution, in which each species of Tetraopes is specialized to feed on one or a few species of Asclepias. A major challenge to investigating coevolutionary hypotheses and conducting molecular ecology studies lies in the limited understanding of the evolutionary history and biogeographical patterns of Tetraopes. By integrating genomic, morphological, paleontological, and geographical data, we present a robust phylogeny of Tetraopes and their relatives, using three inference methods with …