Digital Commons Network^™

It Is Time To Change The Way We Change, Thane Keller

Electronic Theses and Dissertations, 2020-2023

Seventy percent of organizational change initiatives fail. Among organizations where change and adaptation are necessary for survival, the U.S. military stands at the top. The disparity between desired health and fitness behaviors and actual behaviors is a glaring reminder that change is difficult to implement and that current change systems struggle. Merit-based systems offer a solution by rewarding and reinforcing good behavior to generate lasting change. This paper evaluates Kotter's Change Model and Nudge Theory and found them insufficient because they do not sufficiently address reinforcement learning or the temporal tie between behaviors and rewards for reinforcement. This paper then …

Capturing And Scaffolding The Complexities Of Self-Regulation During Game-Based Learning, Daryn Dever

Electronic Theses and Dissertations, 2020-2023

Game-based learning environments (GBLEs) can offer students with engaging interactive instructional materials while also providing a research platform to investigate the dynamics and intricacies of effective self-regulated learning (SRL). Past research has indicated learners are often unable to monitor and regulate their cognitive and metacognitive processes within GBLEs accurately and effectively on their own due mostly to the open-ended nature of these environments. The future design and development of GBLEs and embedded scaffolds, therefore, require a better understanding of the discrepancies between the affordances of GBLEs and the required use of SRL. Specifically, how to incorporate interdisciplinary theories and concepts …

Cultural Movement(S) And Counternarratives: The Rhetorics Of Native Womxn Runners, Kim Martinez

Electronic Theses and Dissertations, 2020-2023

This analysis demonstrates the complex ways that Native womxn runners mobilize the rhetoric they create around and through their running activity to challenge settler colonial, heteropatriarchal ideologies in favor of Indigenous lifeways; build upon cultural practices that include running and a wider spectrum of gender roles to enact more inclusive, modern Native identities; and lead intersectional advocacy efforts that center Native communities. Utilizing a Cultural Rhetorics, Indigenous Feminist, and Decolonial framework that recognizes Native womxn as experts in their own lived experiences, I have gathered Native womxn runners' counternarratives from virtual spaces/social media to learn from their cultural, rhetorical (oral, …

Gendered And Racialized Bodies In Dobbs V. Jackson Women's Health Organization, Saphronia Carson

Electronic Theses and Dissertations, 2020-2023

In June 2022 the US Supreme Court overturned Roe v. Wade, abandoning nearly 50 years of precedent, and removing federal protections for abortion access. In doing so, the Court drew on a lineage of explicit and implicit discourses that have constructed abortions, abortion providers, and pregnant and fetal bodies in ways that make overturning Roe seem inevitable. This thesis takes a reproductive justice perspective while conducting a feminist critical discourse analysis of the majority and concurring opinions in Dobbs. Two main findings stand out. First, the decision relies on originalist constructions of abortions, abortion providers, pregnant people, and fetuses to …

Christian Nationalism Among Evangelical Christians Through A Critical Race Theory Lens, Marina I. Rivera Ramos

Electronic Theses and Dissertations, 2020-2023

In this study, I conducted ethnographic participant observations and semi-structured interviews at two evangelical congregations in central Florida, Free Baptist Church (FBC) and Cornerstone Church (CC), to explore how Christian nationalist ideas (CN) are negotiated, embraced, and/or rejected in church messaging and among congregants. I collected notes from eight sermons at each church and interviewed a total of 14 congregants regarding their concerns and lived experiences as Christians in the U.S. and their opinions on racial injustice. Expanding on previous research on CN, I incorporated Critical Race Theory (CRT) as an analytical framework to understand CN as inextricably connected to …

Predicting Implementation Citizenship Behavior Rating Discrepancies Between Supervisor-Subordinate Dyads, Alexandra Kandah

Electronic Theses and Dissertations, 2020-2023

Organizational citizenship behavior (OCB), defined as behavior that is discretionary and not directly or explicitly recognized by the formal reward system, has gained significant interest in the literature over the past few decades. Recent OCB research has begun to address more specialized facets of citizenship behavior that target behaviors that support specific strategic goals in the organization. One form of OCB encompasses those behaviors that assist with the implementation of new practices or innovations in the organization, above and beyond typical implementation. This study extends both the general OCB literature and the newer literature on implementation citizenship by examining factors …

Racial Discrimination, Social Support And Psychological Distress Among Black Pregnant Women, Camilla Carey

Electronic Theses and Dissertations, 2020-2023

The purpose of this dissertation research was to examine the associations among racial discrimination, social support, and psychological distress among Black pregnant women. The dissertation was guided by the Ecological Systems theory which has three domains that pertain to this research: individual, interpersonal, and community. A literature review was conducted to investigate what is known about the association between racial discrimination and psychological distress among Black pregnant women. This review found that seventeen of the nineteen studies included reported a positive association between racial discrimination and psychological distress among Black pregnant or postpartum women. Limited research focused on the potential …

Structural Transformations In Photo-Thermo-Refractive Glass For Hologram Recording, Roberto Alejandro Alvarez Aguirre

Electronic Theses and Dissertations, 2020-2023

This dissertation focuses on the structural transformations in photo-thermo-refractive (PTR) glass that enable recording phase holograms for efficient transformation of optical beams and high resolution spectroscopy. PTR glass is a multicomponent silicate matrix doped with Ce, Ag, Sn and Sb. It is a holographic phase medium with the ability of permanent refractive index change after UV exposure and thermal development above 500°C due to the precipitation of a NaF crystalline phase. Electronic processes are studied by analyzing the structure of absorption and luminescence bands of PTR glass matrix and its dopants. We analyze the structural transformations in PTR glass from …

Analysis Of Polycyclic Aromatic Hydrocarbons In Tobacco Related Samples Via High Performance Liquid Chromatography And Laser Excited Time Resolved Shpol' Skii Spectroscopy, Ahmed Comas

Electronic Theses and Dissertations, 2020-2023

Human exposure to polycyclic aromatic hydrocarbons (PAHs) due to cigarette smoke is well known. It is also known that PAHs are not inherent components of tobacco. Their presence in cigarette smoke results from the curing process of tobacco leaves used for the fabrication of cigarettes and the incomplete combustion of tobacco during the smoking process. The two chromatographic versions of EPA method 610 are popular approaches for the analysis of PAHs in a wide variety of samples. This method, which is based either on High-Performance Liquid-Chromatography (HPLC) or Gas-Chromatography (GC) has shown the presence of Benzo[a]pyrene (B[a]P) in tobacco samples …

Identification And Modeling Social Media Influence Pathways: A Characterization Of A Disinformation Campaign Using The Flooding-The-Zone Strategy Via Transfer Entropy, Jasser Jasser

Electronic Theses and Dissertations, 2020-2023

The internet has made it easy for narratives to spread quickly and widely without regard for accuracy or the harm they may cause to society. Unfortunately, this has led to the rise of bad actors who use fake and misleading articles to spread harmful misinformation. These actors flood the information space with low-quality articles in an effort to disrupt opposing narratives, sow confusion, and discourage the pursuit of truth. In societies that prioritize free speech, maintaining control over the information space remains a persistent challenge. Achieving this requires strategic planning to protect the dissemination of information in ways that promote …

Using Gis To Better Understand The Cracker Community Of Pat's Island In The Ocala National Forest, Florida, Nicholas Kopp

Electronic Theses and Dissertations, 2020-2023

This research uses GIS methods to contextualize a Florida Cracker community in the Ocala National Forest. My case study is drawn from two seasons of fieldwork and supporting desktop surveys associated with Pat's Island, the home of multiple Cracker families. Cracker culture is historically categorized by its efforts to avoid modernization and prevent the commercialization of traditional lifeways in the quickly shifting society of late-19th and early 20th-century Florida. The geospatial expressions of these Cracker values are an emphasis on semi-remote living, adaptations to a unique environmental context, and the development of a semi-self-sufficient community. This research evaluates how GIS …

The Narratives Of Sexulization: The Perspectives Of Young Entertainers Around Their Own Public Sexulizaiton, Alexis Williams

Electronic Theses and Dissertations, 2020-2023

Sexualization happens when agency is taken away from the individual being sexualized, where one is seen, depicted, and treated like a sexual object rather than a person. This thesis aims to explore celebrities' reactions to their own public sexualization. To do this, an inductive approach was used when analyzing first-person narratives (written and video) and interviews (podcast, magazine and newspaper) by those whose sexualization is a notable feature of their career in the United States. I used a nonprobability sampling technique in order to cast a wide net to find the sample (prior knowledge, Google searches, and Google alerts). This …

Clustering Of Diverse Multiplex Networks, Yaxuan Wang

Electronic Theses and Dissertations, 2020-2023

This dissertation introduces the DIverse MultiPLEx Generalized Dot Product Graph (DIMPLE-GDPG) network model where all layers of the network have the same collection of nodes and follow the Generalized Dot Product Graph (GDPG) model. In addition, all layers can be partitioned into groups such that the layers in the same group are embedded in the same ambient subspace but otherwise all matrices of connection probabilities can be different. In common particular cases, where layers of the network follow the Stochastic Block Model (SBM) and Degree Corrected Block Model (DCBM), this setting implies that the groups of layers have common community …

With Silk, Sage, And Bones: Confronting Death And Dying Through Nature And Ritualistic Healing, Brittney Fucheck

Electronic Theses and Dissertations, 2020-2023

This thesis examines my fears of death and dying. Through my studio art practice, which includes observational representation, ceremonial and ritualistic performance, and installation, I seek to confront my own difficulty in accepting death's emotional weight. My motivation stems from my attachment to my mother's mortality and her relationship with dying animals. In researching cultural customs relating to death, I was inspired to explore non-archival materials and ritualistic processes reflecting my understanding of our bodies' temporal nature. This includes swaddling, etching, using materials such as branches, animal bones, copper, shells, and pine needles, and encasing materials in wax. My points …

Nanostructured Alloy Thin Film Fabrication And Application For Zinc-Air Battery And Lithium-Ion Battery, Guanzhi Wang

Electronic Theses and Dissertations, 2020-2023

The depletion of unsustainable fossil fuels and growing environmental issues have given rise to scientific challenges and research interests in the development of renewable energy technologies to meet the rising global energy demand. Electrochemical energy storage and conversion technologies (ESCTs), such as lithium-ion batteries, metal-air batteries, supercapacitors, and fuel cells, etc., offer a clean and sustainable strategy for utilizing energy. As the core components, the electrode materials, including anodes, cathodes, and catalysts, play a direct decisive role in the device's performance in practical application. Therefore, the development of high-performance and low-cost electrode materials is critical for the success of these …

Electroanalytical Investigations Of Microrna-Conjugated Cerium Oxide Based Nanomaterials For Biomedical Applications, Chaimae El Ghzaoui

Electronic Theses and Dissertations, 2020-2023

Diabetes patients are increasingly suffering from wound-healing impairments coupled with other severe medical conditions. High levels of oxidative stress and proinflammatory cytokines are predominant pathologic characteristics of diabetic wounds. Applying microRNA (miRNA) in gene therapy often successfully treats various disorders by generating highly specific bio-responses. Studies revealed that microRNA146a (miR146a), a regulator of inflammation, is downregulated in diabetic wounds. However, miR203 is found to be highly-expressed in diabetic foot ulcers in positive correlation with disease severity. We have synthesized Cerium oxide nanoparticles (CNPs) since they are used in various biomedical applications due to their high enzyme-mimetic activities and reactive oxygen …

A Digitally Enhanced Virtual Cognitive Behavior Skill Building Intervention To Reduce Parent Stress And Family Obesogenic Behaviors, Sharlene Smith

Electronic Theses and Dissertations, 2020-2023

Parental stress is associated with increased obesogenic family lifestyle behaviors contributing to childhood obesity. Novel interventions are needed to reduce parental stress and improve healthy lifestyle behaviors for preschool-age children and families. The primary study aim was to analyze preliminary effects of a digitally enhanced evidence-based cognitive- behavior skill-building (CBSB) intervention on parental stress and healthy lifestyle behaviors (diet and physical activity) among parents of preschool-age children. A secondary aim was to evaluate feasibility/acceptability of this school-based virtual intervention during the COVID-19 pandemic. The 12-week intervention involved text messaging and three pre-recorded CBSB educational video presentations accessed by parents of …

Thermal Management Strategies For Hypersonic Flight: Supercritical Co2 Jet Impingement Cooling Investigation For Leading Edge, Manoj Prabakar Sargunaraj

Graduate Thesis and Dissertation 2023-2024

This study addresses the critical need for effective thermal management in hypersonic vehicles facing intense heat at their leading edge due to high enthalpy flow. The objective is to propose an active impingement cooling system that ensures the structural stability and performance of these vehicles. This dissertation presents an in-depth exploration of the numerical simulations conducted on the hypersonic leading edge, focusing on a 3mm radius with active cooling utilizing supercritical carbon dioxide (sCO2) as the coolant. The research incorporates conjugate simulations that merge external hypersonic flow and sCO2 active cooling. Utilizing a thermodynamic non-equilibrium two-temperature model and various chemical …

Modeling And Experimental Validation Of Mission-Specific Prognosis Of Li-Ion Batteries With Hybrid Physics-Informed Neural Networks, Kajetan Fricke

Graduate Thesis and Dissertation 2023-2024

While the second part of the 20th century was dominated by combustion engine powered vehicles, climate change and limited oil resources has been forcing car manufacturers and other companies in the mobility sector to switch to renewable energy sources. Electric engines supplied by Li-ion battery cells are on the forefront of this revolution in the mobility sector. A challenging but very important task hereby is the precise forecasting of the degradation of battery state-of-health and state-of-charge. Hence, there is a high demand in models that can predict the SOH and SOC and consider the specifics of a certain kind of …

Control Of The Spar-Buoy Based Wind Turbine Floating Platform Through Mooring Line Actuation, Tajnuba Hasan

Graduate Thesis and Dissertation 2023-2024

This thesis presents an innovative approach to enhance the stability of floating offshore wind turbine (FOWT) platform through mooring actuation. First, an OC3- Hywind spar-buoy floating platform is modeled utilizing the Control-oriented, Reconfigurable, and Acausal Floating Turbine Simulator (CRAFTS) with a specific focus on predicting hydrodynamic and mooring line loads while intentionally excluding consideration of aerodynamic forces. The accuracy of this model is validated against the industry standard OpenFAST simulator through various test cases. The central objective of this study revolves around achieving robust stabilization of the spar buoy platform, primarily focusing on X-Z symmetric planar motions, including surge, pitch, …

Diamond's Hidden Gems - Journals Vs. Articles, Diamond Williams, Ucf Libraries

Libraries' Documents

With so much focus on research and academic writing in our college careers, there is one vital piece of information that is rarely ever brought up: the types of scholarly documents. While this may seem like elementary information for some of you, I doubt most of us entered college knowing about periodicals. Below, I provide a run-down of all the terminology you need to know to make your research much easier.

• A periodical is any publication that comes out regularly or occasionally.
• A magazine is a periodical with a popular focus, aimed at the general public, and containing news, personal …

Artificial Intelligence And Ethics, Carol M. Bast

Faculty Scholarship and Creative Works

This paper focuses on the impact that artificial intelligence has had on the practice of law and ethics rules. In some respects, the ethics rules, comments, and continuing legal education requirements incorporate knowledge of technology into the duty of attorney competence. After offering a primer on artificial intelligence and attorney ethics, the paper discusses certain proposals for revising the ethics rules, comments, and continuing legal education requirements.

Population Differences In Human Mandibular Growth, Madison Hubbart

Electronic Theses and Dissertations, 2020-2023

Mandibles are one of the most common bones encountered in the human archaeological record. Variation in mandibular morphology is often associated with differences in subsistence strategy as masticatory stresses influence bone growth and development. Bone growth is stimulated by bone modeling, the process by which formation and resorption occur through the uncoupled activities of osteoblasts and osteoclasts, respectively. There is a limited understanding of bone modeling patterns in humans due to a lack of quantitative data and small sample sizes. The aim of this research was to address the question: is there a shared bone modeling pattern in the mandible …

Perceived Barriers To And Comfort Levels With Hypothetical Intimate Partner Violence Help-Seeking Among Arab Americans, Jana Mostafa

Electronic Theses and Dissertations, 2020-2023

Members of the Arab American community experiencing intimate partner violence (IPV) face unique barriers to help-seeking and have different comfort levels with using formal and informal resources. This thesis surveyed Arab-Americans to identify perceived barriers and comfort levels with IPV help-seeking. A culturally informed and centered approach was taken to examine connections between individual level factors, perceived barriers and comfort levels in using resources. To do so, I gathered data via an online survey with 82 Arab American participants. Findings suggest that participants perceived the greatest barriers to seeking help for IPV are related to how others view and understand …

And They Saved My Sorry Ass: A Documentary Discovering Self In Contemporary Fan Culture, Chunxiao Yang

Electronic Theses and Dissertations, 2020-2023

"And They Saved My Sorry Ass" is a documentary/personal essay film about queer ani- me lovers (including the filmmaker) based both in the US and in China. This film focuses on how these fans express their identities by embodying and re-interpreting anime characters. Experimental methods, such as staged performance, first-person narration and abstract imaging are explored in addition to conventional interviews. This thesis follows the pre-production, production and post-production processes of making this film through 2020 to 2023, also mapping out marketing and distribution plans after finishing the project.

Diamond's Hidden Gems - Scholarly Communications, Diamond R. Williams

Libraries' Documents

True to its nature as a public research university (a university that drives discovery and advancement), UCF places heavy emphasis on research. This occurs particularly during a student's college career, in which we are encouraged to get involved with projects that draw our attention.

UCF does not leave us on our own in these ventures, however, offering resources and assistance throughout the entire research process. One such resource is the Office of Scholarly Communications.

Ocean Vector Wind Measurement Potential From The Global Precipitation Measurement Mission Using A Combined Active And Passive Algorithm, Alamgir Hossan

Electronic Theses and Dissertations, 2020-2023

Ocean surface vector wind (OVW) is an essential parameter for understanding the physics and dynamics of the ocean-atmosphere system, thereby improving weather forecasting and climate studies. Satellite scatterometers, synthetic aperture radars, and polarimetric microwave radiometers have provided almost global coverage of ocean surface vector wind for the last four decades. Nonetheless, a consistent and uninterrupted long-time data record with the capability of resolving sub-diurnal variability has remained a critical challenge over the years. The Global Precipitation Measurement Mission (GPM) is a satellite mission designed to provide space-based precipitation information on a global scale with complete diurnal sampling. This dissertation presents …

Using An Interactional Ethnographic Perspective To Explore Insider Perspectives When Working With Previously Archived Records, Michelle Sullivan

Electronic Theses and Dissertations, 2020-2023

Studies in social science fields have examined specific issues in (re)using archived records for qualitative research, though few have focused on the use of private archives in ethnographic research, especially when it comes to foregrounding participant perspectives. In this methodological dissertation I draw on two sets of archived records to demonstrate how an ethnographer can make visible insider knowledge and perspectives when conducting qualitative research with archived records. Utilizing an interactional ethnographic perspective, I construct a dataset for analysis, making my logic visible as I use mapping and transcription, domain and taxonomic analysis, and discourse analysis to foreground insider perspectives …

Predicting Heart Disease Using Tree-Based Model, Emil Agbemade

Data Science and Data Mining

The paper presents a study on the use of machine learning algorithms for the prediction of heart disease, which is the leading cause of death worldwide. The study focuses on the use of decision tree algorithms, which have the advantage of considering a large number of risk factors. The heart disease data set was obtained from the UCI Machine Learning Repository and was analyzed using a decision tree classifier. The data set had 6 missing data points, which were deleted, leaving 279 instances for analysis. One-hot-encoding was performed on categorical variables with more than two responses. The decision tree classifier …

Silent Agony: Automated Detection Of Ethnic And Religious Cyberbullying Using Machine Learning, Emil Agbemade

Data Science and Data Mining

The use of electronic mobile devices, social media, and networking websites has increased tremendously in recent years. Despite the advantages of these systems, such as exchanging ideas and information, being sociable, and providing entertainment, users may encounter adverse behaviors like toxicity, bullying, extremism, and cruelty. The prevalence of such behaviors has grown significantly in cyberspace, posing a threat to individuals and communities. To address this issue, there is a high demand for automated cyberbullying detection systems. Machine learning algorithms have been widely used to build such systems by classifying and detecting cyberbullying. In this study, we employed popular machine learning …