Digital Commons Network^™

Exploring The Role Of Fatty Acid Signaling In Macrophages, Ayomide Ogunsanmi

Graduate Thesis and Dissertation post-2024

Dietary fatty acids play critical roles in both the gustatory and immune systems. In taste, they serve as the sapid molecules that underlie the ability to taste fat, whereas in the immune system, they serve as messengers that help facilitate the fuel-based reprogramming of macrophages (MΦ) that underlie optimal immune function. It has become clear in recent years that there is a functional interaction between the taste and immune system, and fatty acid signaling pathways serve as one focus of this overlap. Similar to taste receptor cells (TRCs), MΦ express G protein-coupled fatty acid receptors GPR120 and GPR84, and our …

Chromatographic Developments For The Analysis Of Toxic Organic Chemicals In The Environment And Food Samples, Stephanie Devi Nauth

Graduate Thesis and Dissertation post-2024

As awareness grows about compounds harmful to human health, the need for sensitive detection methods at low concentration levels becomes increasingly critical. Chromatography is a powerful analytical technique that enables the separation of complex mixtures, allowing for the simultaneous analysis of multiple analytes—even at trace levels. This dissertation applies chromatography in two distinct contexts: (1) Investigating the sorption of polycyclic aromatic sulfur heterocycles (PASHs) onto nylon microplastics; and (2) Detecting illegal dyes in various food matrices.

Microplastics have emerged as significant vectors for transporting pollutants into aquatic ecosystems. Due to their hydrophobic nature, many organic pollutants readily sorb onto microplastics …

Advancing Ground-Based Instrumentation With Astrophotonics For Stellar Astrophysics And Time-Domain Spectroscopy, Christina D. Moraitis

Graduate Thesis and Dissertation post-2024

This dissertation presents advancements in Astrophotonics with a focus on PolyOculus technology - a novel, scalable approach to astronomical instrumentation designed to enhance observational capabilities in a cost-effective manner. It details the development of the Original PolyOculus Array (OPA), its integrated light-combining device (the photonic lantern), and its dedicated spectrograph, OPASpec. In parallel, the final commissioning of the MIRADAS Near-Infrared spectrograph is described. These instrumental innovations are applied to key astrophysical investigations, including the search for coronal mass ejections on M-dwarfs and time-resolved spectroscopic monitoring of T Coronae Borealis during its pre-eruption phase. By combining cutting-edge instrument design with cross-institutional …

Preparing For The Habitable Worlds Observatory: Spectropolarimetric Radiative Transfer Models Of Terrestrial (Exo)Planets, Kenneth E. Goodis Gordon

Graduate Thesis and Dissertation post-2024

The next major step for the exoplanet community lies in the characterization of terrestrial exoplanets, especially when it comes to identifying biosignatures and determining the habitability of these worlds. In response to this, NASA has proposed the Habitable Worlds Observatory (HWO), with the primary goal of searching for and characterizing Earth-sized planets in the habitable zones (HZ) of their stars. However, current characterization strategies that only rely on the unpolarized flux from the planets lose some of the informational content of the observed light and therefore suffer from degeneracies in the calculated planetary parameters. The sensitivity of polarization to the …

Analysis Of Numerical Methods For Spdes, And Applications Of Free Boundary Problems In Financial Mathematics, Corey A. Prachniak

Graduate Thesis and Dissertation post-2024

This dissertation studies the key properties of a fully discrete finite element method for a class of stochastic moving boundary problems. Then, free boundary problems and their applications in finance are explored.

The first part of this thesis studies the properties of a proposed fully discrete finite element method scheme with an interpolation operator for stochastic Cahn-Hilliard equations with functional-type noise. These solutions cannot be differentiated in time, so we provide Holder continuity results to aid in the scheme’s error analysis. We further derive the uniform boundedness of higher-order L²-norm moment for use in the analysis. Then nearly …

"Identity (Change) Is Not A Joke, Jim!": The Role Of Change In Responsible Drinking Identity On Behavioral Change In College Alcohol Interventions, Angelina V. Leary

Graduate Thesis and Dissertation post-2024

Identity has long fascinated humans, and recent research has explored its role in behavioral change. Identity change may explain why some behavioral interventions are more effective than others. This dissertation examined this idea within the context of college student alcohol interventions. While numerous interventions exist for college students, only some appear to yield long-term effects. It was hypothesized that the key differentiator in effectiveness is how an intervention reshapes an individual’s responsible drinking identity. Participants (71.93% White, 59.40% Female) from a Southeastern university were randomly assigned to one of four intervention conditions: Deviance Regulation Theory (DRT), Personalized Normative Feedback (BASICS), …

It's In My Nature: A Look At The Individual Differences That Influence Perceptions Of Work Stress Recovery With Nature Breaks, Nathaly Rayo

Graduate Thesis and Dissertation post-2024

The purpose of this study was to explore how individual differences influence employee

perceptions of nature breaks at work. While nature provides restorative benefits to employees such

as reduced fatigue and feelings of recovery and awe, individual differences may impact the fit

between an employee and nature as a desirable work break location. We adopted a person-centered

approach and conducted a Latent Profile Analysis (LPA) using the indicators of nature

connectedness, regulatory focus, uncertainty intolerance, and openness to experience. Results

supported the emergence of four distinct profiles: break under-regulating nature adventurers,

nature-adverse break-takers, nature-loving break self-regulators, and reserved nature-neutral

break-takers. …

Pride Or Prejudice: An Examination Of Queer Content In Florida High Schools, Niamh L. Harrop

Graduate Thesis and Dissertation post-2024

This thesis explores how queer individuals reflect on the presence—or more often, the absence—of queer content in their high school education. Despite increasing visibility of LGBTQ+ people in popular culture and legal reform, formal educational spaces remain largely heteronormative and cisnormative structured from a heterosexual and cisgender standpoint. Through a critical qualitative approach, this study draws on semi-structured interviews with 13 queer participants who attended high school in Florida in the years between the legalization of same-sex marriage in 2015 and the passage of Florida’s H.B. 1557 (“Don’t Say Gay” law) in 2022. Using thematic analysis, four key themes were …

Examining Educational Inequalities And Driving Science’S Next Generation Forward: Geobus Program Theory Evaluation, Elise M. Lorenzo

Graduate Thesis and Dissertation post-2024

This study presents a theory-driven evaluation of GeoBus, a mobile science lab designed to deliver hands-on, “fun learning experiences” via a solar powered, technology-rich learning environment brought directly to K-12 students in Central Florida Title 1 schools. While STEM education is widely recognized as essential for promoting equity, many schools, particularly in under-resourced communities, continue to face barriers to accessing meaningful and inclusive science learning opportunities. GeoBus was created in response to this need, offering students an informal learning environment with exposure to geospatial technologies and interactive science content.

Drawing on mixed-methods data, including content from the GeoBus website and …

Why The “Whole Language Approach” To Reading Fails Ell Students & Instructional Strategies To Employ Instead, Caitlyn E. Petrus

Journal of English Learner Education

The research presented in this article demonstrates a qualitative view of the science of reading for phonemic awareness instruction, phonics instruction, vocabulary development, and reading comprehension strategies for English Language Learners (ELLs) in PK-12 schools. The research builds upon esteemed writers Dr. Sharon Vaughn and Dr. Sylvia Linan-Thompson’s work in their book Research-Based Methods of Reading Instruction for Learners, Grades K-4 and other reading experts such as Dr. Wiley Blevins and Dr. Lisa Moats to apply to the growing population for ELLs in PK-12 schools and how to shift from a “whole language classroom” to a classroom built on the …

Joyce’S Genealogy, Ryan Kerr

James Joyce Literary Supplement

No abstract provided.

Performance Of Lasso And Ridge Regression For Variable Selection In Genome-Wide Association Studies Of Maize Flowering Time, Dipok Deb

Data Science and Data Mining

Genome-Wide Association Studies (GWAS) are instrumental in identifying genetic variants linked to complex traits, providing valuable insights into trait heritability and biological mechanisms. This study applies GWAS to investigate flowering time in maize, a critical adaptive trait, using a diverse dataset of 5,000 recombinant inbred lines across eight environments. Traditional GWAS methods often encounter challenges in high-dimensional datasets due to the presence of multiple small-effect genetic loci. To address this, we compared two penalized regression methods—LASSO and Ridge regression—to perform variable selection and regression analysis within a GWAS framework. LASSO effectively reduced the number of predictors by selecting the most …

Uncovering Acoustic Biomarkers To Classify Parkinson Disease Through Machine Learning, Felix Yeboah

Data Science and Data Mining

The early detection of diseases profoundly influences treatment efficacy, and accurate classification methodologies are essential for effective disease identification. In this project, we examined fve different classifers—Logistic Regression, Gaussian Naive Bayes, K Nearest Neighbor (KNN), Extreme Gradient Boosting (XGBoost), and Support Vector Machines—and evaluated their performance in detecting Parkinson’s disease (PD) based on voice features. The study aims to identify the best classifier for detecting PD. XGBoost performed the best, with an accuracy of 91% on the full dataset. After variable selection, KNN had the best performance with an accuracy of 91%. These findings suggest that Machine learning algorithms(classifiers) can …

Evaluation Of Variable Selection Techniques On The Genetic Architecture Of Flowering Time In Maize, Felix Yeboah

Data Science and Data Mining

In this project, we investigate several variable selection procedures to give an overview of how well they perform on a genomic dataset using three different penalized regression approaches. Comparisons between different methods were performed. These methods include Ridge, lasso, and Elastic Net. We utilized 4494 observations with 7389 SNPs gene scores to predict time to male flowering (dtoa). We assessed the performance of these three models in terms of mean square error. Not surprisingly, Lasso and Elastic Net perform better than Ridge Regression. Overall, Elastic Net performed better in predicting the time of male flowering (dtoa).

Hiss, Ribbit, Vroom: An Examination Of Herpetofaunal Abundance In An Area Surrounded By Anthropogenic Noise, Isabella Berenyi, Genesis Fontanet, Jona Mckinley, Iso Suarez

High Impact Practices Student Showcase Spring 2025

Human population is increasing and will continue to do so, which means more wild habitat is altered. Even areas that are designated for preservation or conservation may still experience indirect alteration, such as anthropogenic noise and road mortality. Anthropogenic noise, or noise from people, becomes noise pollution when it disrupts an ecosystem’s functioning. The objective of this experiment was to determine the influence of road noise pollution on the abundance of reptiles and amphibians on a UCF campus wetland. Between the months of January and April of 2025, we performed basic trapping and dipnetting as well as walked transects to …

Lagoon Lessons: Where Science Meets Service Learning, Cori Mcwilliams, Christopher Poulios

High Impact Practices Student Showcase Fall 2025

When we were kids, we were always told to leave someplace better than you found it - maybe it was your room, campsite, or local park. Now, we have taken this lesson as a call to action to restore the Indian River Lagoon. Over the semester, we created and hosted an Oyster City Safari program for elementary schoolers as a part of UCF’s STEM Day, educating 50 students about oyster reefs and their importance for conservation. We also supported faculty and graduate students in their active research projects, and worked hands-on with local restoration leaders in their ongoing conservation work. …

Home-Based Exercise Programs For Recovery After Tavr, Nikko Marvin A. Zamora, Bailey Mclain, Devrim Yalcindag, Aisha Khurshid, Michael Ortiz, Cheryl Cavaliere

High Impact Practices Student Showcase Fall 2025

The project titled “Home-Based Exercise Program for Recovery After TAVR” focuses on improving recovery outcomes in patients with heart valve disease, specifically those who have undergone Transcatheter Aortic Valve Replacement (TAVR). The purpose of the project was to evaluate the effectiveness of a home-based exercise program, with and without Cognitive Behavioral Intervention (CBI), compared to an educational control program. The study aimed to enhance patients’ physical functionality, quality of life, and recovery time after TAVR—an important consideration for older adults who may not be eligible for open-heart surgery.

Key activities included interpreting a clinical trial. To be able to look …

The World Is My Oyster: Restoring Nature, Inspiring Minds, Antonia N. Ferguson

High Impact Practices Student Showcase Fall 2025

Through Service Learning: Marine Conservation and Restoration, I was a co-leader for UCF STEM Day under the theme “Oyster City Safari.” Our team designed interactive games and crafts to teach two groups of 25 elementary students about oyster reef restoration. Students acted as oysters and reef animals, transforming fragmented reefs into whole ones to demonstrate how restored reefs support biodiversity. They also played a species-matching game and created oyster shell necklaces and crowns. These activities encouraged them to see the value of oyster reefs and inspired future stewardship of the environment. I also contributed to seagrass restoration by assisting Coastal …

The Threshold Of Experience: Critiquing The Self And Society Through Domestic Exploration, Janessa Douds

Graduate Thesis and Dissertation post-2024

This thesis body of artwork investigates theories of “home,” the phenomenology of space, and the uncanny, exploring where the familiar becomes unfamiliar and the ordinary transforms into an enigmatic realm. Through depictions of domestic environments, these paintings challenge conventional perceptions of space and confront the eerie in the everyday to reflect on how those spaces shape our emotional and psychological experiences.

Coach For The Approach: The Educator’S New Role In The Age Of Ai, Kevin Yee, Laurie Uttich, Elizabeth Giltner, Anastasia Bojanowski

UCF Created OER Works

No abstract provided.

Ai-Infused Discussion Boards: Enhancing Engagement, Reflection, And Academic Integrity In Anatomy And Physiology Education, Wade Dauberman

Teaching Repository of AI-Infused Learning

This paper presents the design, implementation, and evaluation of an AI-infused discussion board assignment that promotes ethical AI engagement, enhances student learning in anatomy and physiology, and addresses academic integrity concerns in higher education.

Investigation Of Hydrogen Gas Production And Motility In Δselab And Δfdhf Mutants Of Clostridioides Difficile, Ria D. Gupta

Honors Undergraduate Theses

Clostridioides difficile is a Gram-positive, spore-forming, anaerobic bacterium and the leading cause of antibiotic-associated diarrhea worldwide. During infection, antibiotic-induced disruption of the gut microbiota allows C. difficile to colonize and proliferate. Motility, enabled by flagella, is an important factor in colonization and may be influenced by metabolic activity. Recent experiments have observed gas production during C. difficile motility assays, but the biochemical basis of this phenomenon remains unknown. Because gas formation in other bacteria such as E. coli involves the formate hydrogenlyase complex and the enzyme formate dehydrogenase (FDH), we hypothesize that C. difficile gas production under motility conditions is …

Exploring The Link Between Relationship Status And Emotion Regulation Strategy Use, Abigail A. Echols

Honors Undergraduate Theses

Romantic relationships affect many areas of life and are important sources of interpersonal emotion regulation, yet little research has investigated whether relationship status influences emotion regulation strategy use and emotion dysregulation. Considering that the types of emotion regulation strategies individuals use significantly affect their well-being, understanding the link between relationship status and emotion regulation strategy use is important. This study compared single, partnered, and recently separated individuals’ emotion dysregulation and use of eleven intrapersonal and eleven interpersonal emotion regulation strategies in general (i.e., trait) and in a specific situation (i.e., state) through retrospective self-report scales and an autobiographical writing task. …

Developing New Methods For Quantifying Karenia Brevis In Florida Waters, Antonia N. Ferguson

Honors Undergraduate Theses

Harmful Algal Blooms (HABs), known as red tides, have long impacted Florida’s coastal ecosystems. Caused by the toxic dinoflagellate Karenia brevis, these blooms are named based on the characteristic red discoloration of coastal waters. Negative impacts of K. brevis range from fish kills, neurotoxic shellfish poisoning, and respiratory irritation in humans. Traditionally, K. brevis monitoring has been conducted weekly by Florida Fish and Wildlife Conservation Commission’s Fish and Wildlife Research Institute (FWC-FWRI) using light microscopy for cell identification and enumeration of collected water samples. However, this method is time-consuming, costly, and relies on deep taxonomic expertise for proper cell …

Salinity Effects On Cu(Ii) Bioremediation By Chlamydomonas Reinhardtii Microalgae, Jennifer Hughes

Honors Undergraduate Theses

Microalgae offer a sustainable approach to wastewater treatment by removing pollutants such as excess nutrients, CO₂, and heavy metals. Among various species, Chlamydomonas reinhardtii shows strong potential in removing Cu(II) ions from wastewater. In addition, salinity stress in C. reinhardtii has been linked to morphological and metabolic changes that enhance lipid and phytochemical production. While salinity stress has been studied for enhancing biofuel production, its impact on microalgal removal of heavy metals, particularly Cu(II), remains largely unexplored. Understanding how varying salinity conditions affect both algal growth and the efficiency of Cu(II) remediation could provide critical insights for improving integrated wastewater …

Measuring Personality And Animal Treatment Attitudes With The Pet Scale, Zackery J. Hilton

Honors Undergraduate Theses

Previous research has looked at the association between personality traits and the proclivity, or history, of committing acts that are characterized as animal abuse or animal cruelty. Much research has also found that individuals who exhibit this type of behavior towards animals also tend to exhibit similar behavior towards other individuals, mainly in the form of domestic or child abuse. Previous studies have measured animal abuse using very explicit and extreme criteria, using acts that are without question blatant abuse or torture; however, there is some grey area where many may argue whether certain acts should be considered abuse, which …

Ultra-Plex Immunofluorescence Stainings To Classify Precancerous Lesions For The Stratification Of Their Risk For Progression Toward Esophageal Squamous Cell Carcinoma, Arthi Jaishankar

Honors Undergraduate Theses

Esophageal squamous cell carcinoma (ESCC) is the most common and fatal type of esophageal cancer since it is usually only diagnosed at a later stage. Similar to other cancers, ESCC arises through precursor lesions which are known as dysplasias and occurs when cells have uncontrolled growth and changes to both the tissue structure and gene expression. Clinical intervention at the precancerous stage would greatly improve survival rates, however predicting which lesions will actually become malignant continues to be a challenge. The current traditional method for ESCC diagnosis is hematoxylin and eosin (H&E) histopathology, but it is not sufficient for predicting …

Florida Statewide Coastal Restoration Guide, Melinda J. Donnelly, Matthew Martin, Christen Fleming, Kelly Kibler, Linda Walters, Patrick Shearer, Lauren Jennison, Erika Lin, George Zaragoza

Faculty Scholarship and Creative Works

The Statewide Coastal Restoration Guide (SCRG) is a comprehensive planning resource developed through a collaboration between Florida Department of Environmental Protection (FDEP), University of Central Florida (UCF), and Resource Environmental Solutions (RES) to strengthen and unify shoreline restoration efforts across Florida. With over 4,500 miles of estuarine shoreline, Florida’s coasts are vital to the state’s ecological health, economic prosperity, and community resilience. However, they face increasing threats from sea level rise, stronger storms, erosion, habitat degradation, and development. The SCRG responds to these challenges by providing science-based, non-regulatory guidance for implementing resilient, nature-based restoration strategies that protect both ecosystems and …

Zinc Or Swim: Investigating Zinc Pollution From Restoration Materials, Megan R. Jensik

Honors Undergraduate Theses

Zinc is an essential nutrient, but can be toxic at high concentrations, negatively affecting various biological functions. Gabions are galvanized metals coated in zinc that are used for many human purposes, including coastal restoration efforts attempting to avoid using plastic materials. However, gabions can degrade in marine environments, potentially leaching metal into the water and soil. There is a knowledge gap regarding the occurrence and impacts of zinc pollution in the areas where these gabions are deployed, including the Indian River Lagoon (IRL). To address this, sediment samples were collected from the IRL and analyzed for their physical and chemical …

Comparing Interactive Versus Static Educational Images On Student Learning Outcomes, Noah Schwartz

Honors Undergraduate Theses

Static images routinely accompany text in educational sources such as textbooks, articles, and websites to convey complex, educational information. These are generally effective; however, current technology allows for interactive images that seem to enhance engagement. How effective are these interactive images? The present study investigated whether an interactive image produced better learning outcomes compared to a static image using the same text. Specifically, this study examined whether interactive images affected comprehension, memory, engagement, and cognitive load differently than static images. In this study, data from 153 college student participants were analyzed. First, participants were assigned to read about the neuropsychology …