Digital Commons Network^™

Locating, Characterizing, And Comparing Submerged Precontact Site Hubbard Spring To Other Submerged Spring Sites Throughout Florida, Madison Day

USF St. Petersburg campus Honors Program Theses (Undergraduate)

The rise of sea level over the past 20,000 years has led to the submersion of nearly half of Florida’s original land mass, causing freshwater springs hypothesized to have been a gathering spot for prehistoric people to become submerged. As the water rose, humans lost touch with their ancestors’ ways of life and migratory patterns. In recent years, however, interests in the potential significant cultural, archeological, and paleontological resources at submerged spring sites on the West Florida Shelf have spiked among geo-archeologists, historical experts, biologists, and geologists.

The goal of the WF2305 research cruise aboard the R/V Western Flyer was …

Teaching Concept Design Through Structured Practices And Portfolio Projects, Gavin Hadro

USF St. Petersburg campus Honors Program Theses (Undergraduate)

Concept designers serve various roles, but our primary objective is to give workable, inspiring ideas to a development or production team. The greatest difficulty is ensuring designs are visually compelling, intuitively functional, and intellectually stimulating, all at once. This thesis will evaluate what focused practices and strategies best prepare beginning designers to meet all three challenges. Performing industry-relevant tasks that train these skills will, in theory, enable those studying concept design to effectively learn singular skills before attempting to develop a portfolio that showcases an ability to combine them. Potential practices include compositional and storytelling exercises, 3D design studies, reflective …

Dissatisfaction And Eroding Institutional Confidence: Examining German Perspectives Of The Alternative FüR Deutschland And Its Impact On The German Party System, Isabel Erin Hodgson

Honors College

Support for Germany’s contemporary far-right party, the Alternative for Germany (AfD) has become more salient in recent years due to multiple crises in the European Union and changes in the German political landscape. The rise of the AfD is met with significant pushback from the majority of the German public due to its similarity to the Nazi party in rhetoric, policy, and action. However, opposition to the party is not unanimous; the AfD polled at 22 percent in January 2024. Through a qualitative analysis of 16 interviews with German citizens on their perspectives of the party, I find there exists …

Effects Of The Implementation Of Mastery Grading In An Introductory Biology Course, Darby Ice

Honors College

The purpose of this mixed methods, exploratory study is to investigate what happens when mastery grading is implemented for summative assessments in a majors introductory biology course. Summative assessments included an initial Learning Objective (LO) exam and the opportunity for students to earn a retake exam. First and second iterations of the LO exams covered the same material but did not have the same questions.

Components of this study included a qualitative analysis of students’ perceptions of the mastery grading structure as well as quantitative analyses to determine whether correlations exist between factors such as SAT/ACT scores and degree of …

Ecological Dynamics Of Cenozoic North American Mammals, Alexandria Brandis Shupinski

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

Understanding how community structure is affected by various ecological, climatic, and environmental changes is a long-standing goal in ecology. However, disentangling human impacts from these other variables is difficult when using short modern timescales and anthropogenically altered communities. The fossil record provides a means to investigate community structure dynamics across critical intervals, excluding humans as a variable. Here, in three studies, I assess changes in North American mammal paleocommunity structure across the last 66 million years (Ma) at multiple temporal and spatial scales. In Chapter 1, I identify changes in mammal functional diversity (FD) locally and continentally, using three independent …

An Analysis Of Child Valence Bias Trajectories As A Result Of Parental Factors: A Longitudinal Perspective, Kaylee Brooke Donner

Honors Program: Senior Projects (Public)

Valence bias is an important part of how individuals perceive the world around them, and this is especially influential in terms of children’s development. This study used data from longitudinal data collection surveys consisting of 197 participants, ages 6-17, to investigate correlations between valence bias, puberty, parental conflict, emotion regulation, temperament, interpersonal regulation, trait anxiety, and personality. This research provides much sought-after knowledge in terms of how parental factors impact children’s development, specifically children's valence bias development. Previous research has shown that emotion regulation in parents, along with different parenting styles with equal levels of discipline and loving support largely …

Design And Fabrication Of A Carbon Fiber Wheel For The Husker Motorsports Club, Benjamin Bashtovoi, Jordan Chapin, Michael Pineda, Caden Lind, Thomas Crum

Honors Program: Senior Projects (Public)

Every year, the Husker Motorsports team participates in a Formula SAE competition that challenges students to design and manufacture a Formula-style vehicle to compete against colleges from around the world. The Husker Motorsports club has sponsored this senior capstone project to improve the vehicle’s performance by reducing unsprung mass. Unsprung mass reduction has numerous benefits on vehicle dynamics, including improved acceleration, handling, and braking. To achieve these performance improvements, the team developed carbon-fiber composite wheels that weigh less than the current wheel solution and provide better rigidity. The team designed and modeled the wheel according to the 2023-2024 competition car …

Drag Reduction In Channel Flow Configurations For Laminar And Turbulent Flow Past Superhydrophobic Surfaces, Henry Louis Ems

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

In this work, we present friction drag reduction in minichannel laminar flow past superhydrophobic metallic surfaces. Femtosecond laser surface processing (FLSP), a one-step scalable method, was used to create permanent microscale and nanoscale structures on 316 stainless steel plates. The resulting superhydrophilic plates were covered by tall (215 μm) or short (27 μm) structures. The FLSP plates were then transitioned to superhydrophobic by evaporative deposition of a fluorinated silane, a low surface energy coating. Using purified water, the friction factor was obtained by measuring pressure drop along a minichannel with a rectangular cross section for flow rates corresponding …

Exploring Subtype C Hiv-1 Tissue Reservoirs And The Impact Of Cannabis Use In Virally Suppressed African Individuals, Zhou Liu

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

Antiretroviral therapy (ART) has dramatically prolonged the lives of people living with HIV (PLWH), but it is not curative as it cannot eliminate integrated HIV-1 proviruses in different tissue reservoirs. Even though subtype C HIV-1 accounts for almost half of global HIV-1 infections, few studies had evaluated HIV-1 reservoirs for this subtype. Many co-factors, including the lifestyle factor cannabis use, have been investigated for their potential effects in HIV-1 infection. However, only limited information exists regarding cannabis’s effects on HIV-1 infections in vivo, and the impact of cannabis use on HIV-1 parenchymal tissue reservoirs is unexplored. This dissertation aims to …

Increasing Nursing Aide Knowledge On Benefits Of Light For Sundowning Syndrome, Grace Hilfiker, Julie Masters

Honors Program: Senior Projects (Public)

In this study, the knowledge of nursing aides on the benefits of light for sundowning syndrome was investigated. While dementia and sundowning syndrome is discussed during nursing aide training in the state of Nebraska, there is no discourse focused on how light plays beneficial role in lessening the symptoms of sundowning syndrome for those who are afflicted with dementia. This study asked what the current knowledge base surrounding dementia and sundowning syndrome is of nursing aides in the state of Nebraska. The aim was to justify adding a focus on concrete methods to use when caring for patients with dementia …

Toxicological Effects And Treatment Of Accidental Ingestion Of Simparica Trio® In Felis Catus: An Investigative Review, Aussia M. Stander

Honors Program: Senior Projects (Public)

Simparica TRIO^®, a canine endectocide manufactured by Zoetis, contains sarolaner, moxidectin, and pyrantel pamoate salt in an orally administered chewable tablet. These compounds are all toxic to both cats and dogs in sufficient amounts. As Simparica TRIO^® rises in popularity among pet owners, Felis catus (felines, cats) in multi-pet households (households with both cats and dogs) are at increased risk of overdosage and toxicosis from accidental ingestion of Simparica TRIO^® due to their smaller weight.

Simparica TRIO^® is not for feline use and little literature exists on the symptoms of and treatment for accidental ingestion …

"Everyone Got To Eat My Tears": Racialized Emotions, Mentoring Practices, And The Political And Ethical Commitments Of Women Of Color Graduate Students In Stem, Machienvee V. Lammey

Sociology ETDs

In this project, I examine the emotional and lived experiences of women of color (WOC) graduate students in science, technology, engineering, and mathematics (STEM) and how they embody and negotiate racism, classism, and sexism in academia, particularly in White, men-dominated STEM spaces. I utilize critical race theory and intersectionality to shed light on how WOC draw upon their intersecting identities, marginalization, and sense of community to navigate and resist oppressive environments. Specifically, I highlight the ways they experience racialized emotions and leverage vulnerability to resist dominant academic norms and controlling images to preserve their holistic selves, engage in critical reflexivity …

A World Between: The Macro And Micro-Relationships That Shape The Borderlands, Teresa Digerolamo

Honors Theses

This thesis explores changing border policies, their effects on migrants, and the humanitarian community that has emerged to meet the needs of migrants. Border policy has sought to make the journey through the U.S.-Mexico border perilous and unattractive for travelers, pushing migrants into dangerous terrain known to reach life-threatening extremes in the summer and winter months. Over 8,000 migrants have died since 1998 along the U.S.-Mexico border, and aid groups have emerged to meet the need for life-saving care. The humanitarian community in southern Arizona is active and dynamic, adapting to ever-changing border policy and mobilizing resources year-round. Through reviewing …

Effects Of Dissolved Oxygen And Ph On Eastern Oyster (Crassostrea Virginica) Growth, Karina D. Ledezma

Honors Theses

Coastal ecosystems, known for their abundant natural resources and role in environmental processes, are facing challenges posed by climate change, pollution and anthropogenic activities. Among these challenges is the expansion of hypoxic zones, characterized by low dissolved oxygen (DO) levels, which poses a significant threat to benthic organisms and oyster fisheries. This research investigates the interaction between hypoxia and pH dynamics, intensified by freshwater input, and the biomineralization of Eastern oysters (Crassostrea virginica). To explore these dynamics, experimental trials were conducted in 24 tanks, simulating normoxic, hypoxic, and fresh hypoxic conditions, to assess the impact of hypoxia on …

Tense Indifference: An Examination Of Integration In Two Cities In Marengo County, Alabama, Benjamin Ogden

Honors Theses

For decades, the city of Demopolis, Alabama, in Marengo County has been viewed by West Alabama administrators as a “beacon of hope” in terms of race relations because it successfully integrated its public schools and managed to keep private segregation academies at bay. In the neighboring city of Linden, however, integration was far less successful, with a a segregated private school siphoning off the white students and eroding white support for public education. dominating and destroying the educational structure of the city. In this paper, I delve into how the dichotomy between these two nearby cities was created by the …

Advances In Nanofiber Technology For Biomedical Application: A Review, Dipasree Bhowmick, Islam Uddin Shipu

Mechanical Engineering Faculty Publications

The application of nanofiber technology in the biomedical field has garnered significant interest due to its potential to revolutionize areas such as tissue engineering, wound healing, and antimicrobial treatments. This paper provides a comprehensive review of the recent advancements in nanofiber technology, particularly focusing on electrospinning and 3D printing methods that enable the fabrication of scaffolds mimicking the native extracellular matrix. These technologies have facilitated the development of nanofibers with high surface-to-volume ratios, adjustable porosity, and enhanced mechanical properties, tailored to meet specific biomedical needs. Despite their promising features, challenges such as the optimization of pore size for effective cell …

Reaping What We Sow: The Implications And Outcomes Of Mississippi House Bill 1125, The “Regulate Experimental Adolescent Procedures (Reap)” Act, Kerigan Brewer

Honors Theses

Mississippi House Bill 1125 (MS HB1125), also known as the “Regulate Experimental Adolescent Procedures (REAP) Act,” was signed into law by Mississippi Governor Tate Reeves in early 2023 (REAP Act, 2023). It is one of multiple policies passed into law that limit the rights of transgender people. This thesis aims to clarify the history of the trans community, dispel myths around gender-affirming health care and the trans identity, and discuss the current state of anti-trans laws and transgender rights. Using a policy analysis framework by DiNitto (2011), MS HB1125 is analyzed on points like its social and economic costs, the …

Stuck In My Head: Maladaptive Daydreaming And Memory, Tamryn Woolfork

Honors College Theses

Previous research has indicated that maladaptive daydreaming (MD), a proposed psychological disorder in which people are compulsively immersed in complex daydreamed plots accompanied by intense emotional involvement and stereotypical movements (Soffer-Dudek & Theodor-Katz, 2022), may be comorbid with many disorders such as ADHD (Somer, Soffer-Dudek, & Ross, 2017). Research has also shown that MD is related to the concept of absorption in which a person’s attention is fully engaged in an outside object (Abu-Rayya, Somer, & Meari-Amir, 2019; Tellegen & Atkinson, 1974). This study examined whether MD was correlated with story world absorption, working memory span, and memory for a …

The Pam-1 Aminopeptidase Protects Against Neurodegeneration In Caenorhabditis Elegans, Caleb Coil

Honors College Theses

The deteriorating effects of neurodegenerative conditions seem inescapable for many as they age. The experimental exploration of the molecular and cellular mechanisms responsible for neurodegeneration is aided using animal models. For instance, genetic screens have identified the puromycin-sensitive aminopeptidase (PSA) as a novel effector of neurodegeneration, as mutations in PSA in fruit flies result in perturbations of neuron anatomy and an accelerated onset of neuron death. We have tested the hypothesis that PAM-1, the Caenorhabditis elegans ortholog of PSA, plays a similar role in governing neurodegeneration in nematodes. Genetic strains were created that express the green fluorescent protein (GFP) in …

Front Matter, Michigan Law Review

Michigan Law Review

Front Matter for Volume 122, Issue 7 of Michigan Law Review

Project Foresight Annual Report, 2022-2023, Paul J. Speaker

Faculty & Staff Scholarship

Project FORESIGHT is a business-guided self-evaluation of forensic science laboratories across the globe. The participating laboratories represent local, regional, state, and national agencies. Economics, accounting, finance, and forensic faculty provide assistance, guidance, and analysis. Laboratories participating in Project FORESIGHT have developed standardized definitions for metrics to evaluate work processes, linking financial information to work tasks, and functions. Laboratory managers can then assess resource allocations, efficiencies, and value of services—the mission of Project FORESIGHT is to measure, preserve what works, and change what does not.

The benchmark data for the 2022-2023 performance period includes laboratory submissions for a variety of fiscal …

A Dyadic Analysis Of Fat Talk And Body Esteem Amongst Romantic Couples, Marissa J. Sáez

All Graduate Theses and Dissertations, Fall 2023 to Present

Due to high levels of body objectification within society, many individuals feel a strong need to "improve" their bodies. This mindset can lead individuals to speak negatively about their body, which is referred to as fat talk. This study examines the relationship between fat talk on one's own and their romantic partner's body esteem. Meaning, it is proposed that speaking negatively about one's body will impact not only their own body esteem, but also their romantic partner's body esteem. Data were collected from 112 participants (56 dyads). The results of the data supported both hypotheses, demonstrating that one's fat talk …

Impacts Of Lake Elevation Decline On Tui Chub, A Critical Forage Species For Lahontan Cutthroat Trout In Pyramid Lake, Nevada, Usa, Sarah Barnes

All Graduate Theses and Dissertations, Fall 2023 to Present

Lake level decline affects lakes worldwide, changing the availability and character of nearshore habitat used by fish to spawn, and increasing total dissolved solids (TDS), similar to salinity, a factor that negatively impacts fish health. Lake level decline can affect different lakes in different ways, but typically when lake level declines significantly, there is less nearshore habitat overall, and what nearshore habitat remains has less diverse habitat for fish. We investigated whether both impacts of lake level decline may be causing declines of Tui Chub Siphateles bicolor, a large minnow native to Pyramid Lake that spawns in nearshore habitat. …

Uv-A Light: A Novel Method For Food Dehydration, Mckade S. Roberts

All Graduate Theses and Dissertations, Fall 2023 to Present

Dehydration is one of the most prevalent forms of food preservation, with approximately 85% of food is hot air drying due to the simplicity of the process. The high temperatures employed in this method may also induce a loss in nutritional quality, which involves destruction of micronutrients (vitamins), and loss of color.

The aim of this work is to develop a low energy, non-thermal method of food dehydration that results in a high-quality product through the application of Ultraviolet light, within the UV-A range. UV light can be separated into its 3 categories based on the wavelength of light from …

Exploring Farmers' Willingness To Accept Payment For Agricultural Conservation In Utah, Asif Ahmed Khan

All Graduate Theses and Dissertations, Fall 2023 to Present

In view of Utah’s drought situation and the need for conservation of water use, this thesis tries to calculate the compensation required for farmers to switch from cultivating alfalfa-which requires a lot of water, to less water-consuming crops like wheat, hay and even pasture. It proposes a new technique for this calculation using big data, including satellite images from National Aeronautics and Space Agency (NASA), agricultural statistics from National Agricultural Statistics Service (NASS), climate data from Parameter-elevation Regressions on Independent Slopes Model (PRISM) climate group and land use data from the state of Utah. These data are integrated into a …

Variations On Leitmotif: Firebird Rises, Virginia Beikmann

All Graduate Theses and Dissertations, Fall 2023 to Present

This thesis begins with an introduction that discusses the various influences on the development of the creative novella portion. These influences include Russia literature and folklore, as well as the genres of alternative history and speculative fiction. The novella takes place in a re-imagining of Moscow, Russia during the 1917 Bolshevik Revolution. The novella portion is driven by a close focus on character, with emphasis on reactions to wartime pressures and interpersonal relationships forming the central conflict.

Investigating The Impact Of Pre-Professional Organization Participation On Undergraduate Technology And Engineering Education Student Retention And Interest In Teaching, Emily Yoshikawa-Ruesch

All Graduate Theses and Dissertations, Fall 2023 to Present

The field of Technology and Engineering Education (TEE) has evolved in name and content throughout its existence. Throughout these evolutions, the number of TEE programs across the United States have decreased along with a decrease in the number of students graduating from undergraduate TEE programs. Previous investigations into the recruitment of TEE students have identified social interactions with TEE program faculty and technology and engineering educators as influential in students' interest in teaching technology and engineering at the secondary level. This study sought to investigate how social interactions through participation in Technology and Engineering Educators Association (TEECA), as a community …

Dismantling Barriers To Publishing: Identifying Types Of Negative Review Experiences And Strategies For Mitigating Them, Hannah L. Stevens

All Graduate Theses and Dissertations, Fall 2023 to Present

This dissertation research focuses on academic publishing, particularly the peer review process, investigating gaps between journal guidelines and guidelines of inclusive publishing policy and processes. This project investigates the potential for supplementation of policy documents to cultivate a positive publishing experience. Moreover, this research continues the work of cultivating connections among authors, reviewers, editors, etc., in the drive to increase the accessibility and inclusivity of the publication process.

Plant Model Of Α-Synucleinopathy: Expression Of Α-Synuclein A53t Variant In Hairy Root Cultures Leads To Proteostatic Stress And Dysregulation Of Iron Metabolism, Jasmina Kurepa, Kristen A. Bruce, Greg A. Gerhardt, Jan A. Smalle

Neurology Faculty Publications

Synucleinopathies, typified by Parkinson’s disease (PD), entail the accumulation of α- synuclein (αSyn) aggregates in nerve cells. Various αSyn mutants, including the αSyn A53T variant linked to early-onset PD, increase the propensity for αSyn aggregate formation. In addition to disrupting protein homeostasis and inducing proteostatic stress, the aggregation of αSyn in PD is associated with an imbalance in iron metabolism, which increases the generation of reactive oxygen species and causes oxidative stress. This study explored the impact of αSyn A53T expression in transgenic hairy roots of four medicinal plants (Lobelia cardinalis, Artemisia annua, Salvia miltiorrhiza, and Polygonum multiflorum). In all …

Reconceptualizing Self-Directed Learning In The Era Of Generative Ai: An Exploratory Analysis Of Language Learning, Belle Li, Curtis J. Bonk, Chaoran Wang, Xiaojing Kou

Department of Curriculum and Instruction Faculty Publications

This exploratory analysis investigates the integration of ChatGPT in self-directed learning (SDL). Specifically, this study examines YouTube content creators’ language-learning experiences and the role of ChatGPT in their SDL, building upon Song and Hill's conceptual model of SDL in online contexts. Thematic analysis of interviews with 19 YouTubers and relevant video contents reveals distinct constructs of ChatGPT-integrated SDL, suggesting a reconceptualization and refinement of the SDL framework in the consideration of generative artificial intelligence (AI). This framework emphasizes critical aspects of utilizing ChatGPT as an SDL tool on two distinct levels: 1) the interactive relationships and interplay between learners’ personal …