Digital Commons Network^™

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 …

Assessment Of Sampling Gears For Bigheaded Carp In Mid-Order Prairie Rivers In Nebraska, Brett M. Anderson

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

Silver Carp Hypophthalmichthys molitrix and Bighead Carp H. nobilis (collectively bigheaded carp) have invaded tributaries to the Missouri River and Platte River in Nebraska, USA. Information pertaining to efficient sampling protocols for assessing bigheaded carp populations as well as benefiting removal efforts is needed. Herding is a method used to increase the capture efficiency and detection probability of adult bigheaded carp by simultaneously using active and passive sampling gears. During June-July 2023, four herding techniques were assessed regarding their ability to elicit directional movement past an enclosure gate. The combination of sound and electrofishing resulted in the highest mean …

Sustainable Fashion Identified: An Exploration And Education Of Sustainable Apparel, Michaela M. Lentsch

Department of Textiles, Merchandising and Fashion Design: Dissertations, Theses, and Student Research

Consumers today are searching for and are loyal to companies who support their views and concerns about sustainability. The fashion industry is one of the biggest industries in the world, but one that has many environmental and sustainability concerns. Fortunately, there are many ways the fashion industry and consumers can take steps to make sustainable change and better the planet. Small fashion businesses and boutiques can make positive changes to operate and provide sustainable options and services for customers which can help the planet become more sustainable.

Through this manuscript, an assortment of sustainable methods and practices will be shared …

Exploring The Nexus Of Adverse Childhood Experiences And Illicit Substance Misuse Among Midwestern Adults, Anika R. Eisenbraun

Department of Sociology: Dissertations, Theses, and Student Research

The positive association between illicit substance misuse and adverse childhood experiences (ACEs) has been widely examined in prior literature. Yet, there is limited understanding of the varying factors, such as social support, depressive symptoms, or sexual victimization, that may impact the relationship between substance misuse and ACEs. As such, the purpose of the current study is to examine the relationship between ACEs (i.e., physical and emotional abuse, sexual abuse, neglect) with illicit substance misuse and to investigate indirect pathways of social support, depressive symptoms, and sexual victimization. Private, secondary data from the second cohort of a larger, longitudinal rural health …

Household Wealth And Mental Health In Older Adults Across Racial Groups: Moderating Role Of Social Support, Sunkanmi Folorunsho

Department of Sociology: Dissertations, Theses, and Student Research

This thesis examines the relationship between household wealth and mental health outcomes among older adults, with particular attention to racial and ethnic differences and the potential moderating role of social support. Although financial resources are widely recognized as important determinants of psychological well-being, less is known about how social support interacts with economic conditions to shape mental health in later life. The study also addresses how these patterns may vary among different racial and ethnic groups, given persistent inequalities in wealth and disparities in access to social resources.

Drawing on data from the 2020 wave of the Health and Retirement …

Biological Reduction Of Perchlorate In Martian Regolith Simulant Using Azospira Oryzae, Brianna Bernhardt

Honors Program: Senior Projects (Public)

Establishing a sustainable human presence on Mars will require in-situ resource utilization (ISRU) to reduce costly and inefficient resupply missions. Despite containing many of the requirements for agriculture, Martian regolith is contaminated with toxic levels of perchlorate (ClO₄^-), threatening human health and agricultural success. Biological remediation using perchlorate-reducing bacteria offers a promising approach to address these challenges. This study investigated the perchlorate-reducing ability of Azospira oryzae, a facultative anaerobe capable of converting ClO₄^- to chloride (Cl^-) through dissimilatory respiration. A. oryzae was cultured in Martian regolith simulant (MGS-1) amended with 0.0%, 0.5%, …

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 …

Eating Behavior Differences Across Dementia Diagnoses: The Roles Of Behavioral Symptoms And Anticipatory Physiological Responses, Charlie J. Lorkovic

Honors Program: Senior Projects (Public)

Objective: To determine how behavioral symptoms and impairment of the preparatory physiological response contribute to disordered eating behaviors in dementia, particularly frontotemporal dementia (FTD) and Alzheimer’s disease (AD).

Methods: This secondary analysis utilizes data from 242 patients (191 FTD, 51 AD) who took part in a collaborative study between the University of California, Berkeley, and the University of California, San Francisco. Preparatory physiological responses were measured as heart rate increases from a baseline to an instruction period, when participants were informed that they were about to watch an emotional film. Behavioral symptoms, including eating behaviors, were assessed using the Neuropsychiatric …

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 …

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 …

A Comparative Analysis Of Women’S Health In Latin America And The United States: Geographical Context And Preventative Actions, Holly J. Robinson

Honors Program: Senior Projects (Public)

Cervical cancer, breast cancer, sexually transmitted infections (STIs), pregnancy complications, and gender-based violence are dangers faced by women everywhere. However, the severity of these risks can increase significantly due to a country’s geography, government control, and level of development. This thesis expands upon information gained directly from on-site experiences with medical professionals and locals (including doctors, nurses, nutritionists, and patients) in Peru, Ecuador, and Costa Rica, and further research to look at Latin America as a whole, in relation to the United States. Both the US and Latin America exhibit problems with their healthcare systems. The United States is more …

Through Every Door A New Story: An Advertising Campaign For Francie & Finch Bookshop, Aislinn T. Sullivan

Honors Program: Senior Projects (Public)

More and more of our world is run by algorithms. What we see, what we buy, and what we share. Online retail has sent ripples through the book-selling industry, but the algorithms can’t replicate the feeling of tangible discovery and shared experience.

As more free time is taken up by digital entertainment, moms are seeking to create personally resonant experiences for those they love. This campaign strives to introduce Francie & Finch as the stage for the target market, moms ages 35-50, increasing brand awareness.

These moms remember the things that tightened their bond with their loved ones like …

Espn Navigates A New World Order, Grace Rowe

Honors Program: Senior Projects (Public)

ESPN has been at the top of sports broadcasting for decades. Recently, there has been a shift in consumer behavior towards preferring digital streaming instead of cable television. In this report, I will discuss the background of the Entertainment and Sports Programming Network (ESPN) and its competitive advantages. I will analyze the situation using a strategic framework to take a closer look at what solutions ESPN could implement. Finally, I will recommend how to successfully transition from the crown jewel of cable bundles to an online streaming platform. After looking at the PESTEL framework, Porter’s Five Forces, the VRIO framework, …

Addressing The Lack Of Patient Adherence To Exercise Within The Physical Therapy Clinic And Creating Infographics To Improve Patient Adherence, Gretchen Panovich

Honors Program: Senior Projects (Public)

The primary objective of this applied knowledge project is to develop educational materials to enhance patient adherence. The World Health Organization defines adherence as “the extent to which a person’s behavior…corresponds with agreed recommendations from a healthcare provider.” Within the physical therapy field, non-adherence to exercise is a significant problem linked with increased duration of treatment, more patient complaints, reduced positive clinical outcomes, and even surgical intervention.

Multiple factors affect patient adherence, making it hard to pinpoint a singular cause. Clinical observations and research suggest that belief in the rehabilitation process may suffer due to a prolonged recovery period, lack …

Conversion Of Thermal Energy Stored In Conductive Concrete To Electricity With Thermoelectric Generators, Moustafa M. Al Adawi

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

This paper presents a proof-of-concept experimental study on the use of conductive concrete as thermal energy storage and its conversion into electricity. The conductive concrete is heated to 100°C by supplying electricity, and the stored thermal energy is converted back into electricity using thermoelectric generators (TEGs). Measurement results demonstrate that the conductive concrete effectively stores thermal energy up to 100°C, and this energy can be successfully converted into electricity. The findings highlight the potential of conductive concrete as a reliable medium for thermal energy storage.

Advisor: Lim Nguyen

An Empirical Study On The Economic And Policy Drivers Of Livestock Risk Protection Utilization, Milan Chauhan

Department of Agricultural Economics: Dissertations, Theses, and Student Research

Federally supported risk management programs for livestock producers have existed for the last twenty years. Among these, Livestock Risk Protection (LRP) is a federally subsidized insurance tool available for cattle producers to manage downside price risk. In recent years, participation in LRP has surged. This paper examines the key economic and policy variables that partially drive LRP utilization and analyzes the role of risk management educational efforts in the decision to participate and the intensity of the insurance utilization using unique state-level panel data from 2003 through 2023.

The study analyzes three complementary metrics of insurance utilization: market volume (policies …

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 …

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 …

Melanated Reflections Through Testimonios: Centering The Experiences Of African American Women Teachers Turned Leaders And Their Implications On Recruitment, Selection, Hiring, And Retention Of Women Of Color In Leadership Positions, Tanya Rochelle Santos

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

According to the National Center for Education Statistics (2022), during the 2017–2018 academic year, only 7% of all teachers identified as Black or African American, with approximately 76% of that group being women. This qualitative study investigates the lived experiences of African American women educators who have transitioned into leadership roles within P–12 educational settings across the Great Plains Region of the United States. The research explores how their experiences intersect with issues of racial and gender equity, particularly within the broader discourse of social justice in education and educational leadership.

Framed within the theoretical lens of Black Feminist Thought, …

Dr. Doctor: A Look At Life In Medicine, Alexandra Hausmann

Honors Program: Senior Projects (Public)

The life of a medical professional is not easy. The road to get there and the lifestyle when practicing is mentally draining and results in many physicians experiencing burnout. This project and paper explore the stigma surrounding mental health in medicine, examining how fear of professional repercussions prevents many physicians from getting help. Through research and interviews with medical professionals of various specialties, this project looks at the different mental health struggles that each specialty faces. Additionally due to increased social media, medicine continues to evolve at a fast rate. Looking forward, medical professionals will have to deal with increased …

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 …

Chipotle Mexican Grill Strategic Audit: An Analysis Of Chipotle Mexican Grill Business Strategy, Garrett Smith, Karissa Hodge, Baden Brumbaugh, Daniel Koland, Ellie Hurst

Honors Program: Senior Projects (Public)

This report outlines a strategic audit of Chipotle Mexican Grill and its business strategy and policies. The report dives into how Chipotle creates strategic value and competes in the fast-casual food industry. Chipotle’s strategic mission, Cultivate A Better World, motivates them to focus on sustainable practices involving farming, emissions, and water stewardship. Despite facing issues involving health concerns, Chipotle has recovered and positioned itself in a strong position for the near future. With its new CEO, Scott Boatwright, Chipotle has to navigate a crowded fast casual industry that faces market pressures from consumers around healthy eating.

A Case Study On Readiness Of Engineers In Agricultural Technology Start-Ups, Katie Marie Mowat

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

This dissertation explores the perceptions of practicing engineers regarding the skills necessary to be workforce-ready at agricultural technology (ag-tech) start-ups in the Midwestern United States. A qualitative case study methodology is leveraged, combining both interview and job description data. Given their uniqueness, the study divides the ag-tech start-up industry into two subcases: livestock and cropping systems. The Work Readiness Integrated Competence Model (WRICM) is used as the theoretical framework for this study and informs the conceptual framework and analysis processes. The study identified skills that fit into thirteen distinct categories, which are further grouped into four overarching resource groups. Skills …

Understanding The Context Of Bullying: Examination Of The Healthy Context Paradox And Peer Acceptance For Students With Disabilities, Catherine Mae Carney

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

The purpose of this dissertation study was to examine how perceptions of school climate and social acceptance influence the relationship between bullying victimization and anxious and depressive symptoms for youth with and without disabilities. Students with disabilities are at increased risk for involvement in the bullying dynamic, both by bullying others and by experiencing victimization. Victims of bullying are more likely to experience peer rejection and greater internalizing problems, including higher levels of anxious and depressive symptoms. Research suggests that school-wide efforts to reduce bullying may leave some youth vulnerable to worse psychosocial outcomes, which has been called, “the healthy …

Belly Dance In Nebraska: Identity, Social Acceptance, And Perseverance, Alex R. Mohr

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

Belly dance is an art form as well as an often-contested practice due to tensions over dress, terminology and cultural practices within the belly dance community because the dance originated outside the United States. Additionally, there is often a need to prove the legitimacy of the dance to those outside its sphere because it is often stigmatized due to the early association with exotic dancing. Belly dance is inherently geographic, as seen through its places of origin, music and movement styles, global spread, practitioners, and spaces of practice. However, it has not been well-represented in geography, and there is also …

Optimizing Nitrogen Management: Assessing Nitrate Transport In The Deep Vadose Zone And Its Impact On Groundwater Quality In East-Central Nebraska, Muili O. Lawal

Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research

Groundwater contamination by nitrate (NO₃-N) is a growing environmental and public health concern driven largely by intensive agricultural fertilizer applications. The vadose zone plays an important role in NO₃-N transport, influencing groundwater quality and agricultural sustainability. This study investigated NO₃-N leaching dynamics in the deep vadose zone of Water Quality Sub-Area 30 (WQA30) within the Lower Loup Natural Resources District (LLNRD), northeast of Columbus, Nebraska (mean groundwater NO₃-N: 20.3 mg/L), using soil cores from 16 shallow (to 6.1 m) and four deep (down to 25.9 m) across four zones, two with inorganic fertilizer (Zones 1 and 4) and two with …

Environmental Effects On Preweaning Calf Health, Lindsay L. Waechter-Mead

School of Veterinary and Biomedical Sciences: Dissertations, Theses, and Student Research

Neonatal calf health is an important factor in the productivity and profitability in the beef cattle industry, influencing preweaning survival, growth, and long-term performance. The overall objective of this thesis is to characterize risk factors that contribute to health issues in young beef calves. The first objective is to review literature exploring the environmental factors affecting preweaning morbidity and mortality, including hypothermia, precipitation, and wind. Management strategies such as the effect of environmental conditions of calving location, body condition score in dams at parturition, and the impacts of dystocia on calf health will also be discussed. Gaps in current research …