Digital Commons Network^™

Xps Study Of Calcium Lanthanum Sulfide Ceramics, Brian E. Butkus

Graduate Thesis and Dissertation 2023-2024

Long wave infrared (LWIR) optics that transmit in the 8 to 14 m wavelength range and, additionally, can withstand severe physical and thermal stresses are needed for advanced remote sensing, guidance and communication-based applications. However, most non-oxide transparent LWIR optics do not have the wider transmission range, nor the hardness and resistance to thermal shock needed for extreme environments. Because of these limitations, research is circling back to a promising material, calcium lanthanum sulfide (CLS), that could meet LWIR needs for extreme environments.

In this thesis, we will demonstrate the abilities of x-ray photoelectron spectroscopy (XPS) as a technique for …

Painting And Fear: The Creation Of Death's Visage, Mark A. Felbinger

Graduate Thesis and Dissertation 2023-2024

Death's Visage is a feature film that was created from an idea developed due to a personal relationship with an artist, who was a professional illustrator and painter. The film follows a young woman who becomes entrapped in a demonic sphere and time zone where her fear is the demon's gratification. She questions the events that are unfolding, which creates herpsychological turmoil, while taking place in the family home that is in an older established middle-class neighborhood.

Death's Visage was a micro-budgeted film produced for $20,778. The capital needed for this film meets the University of Central Florida Feature Film …

Inclusion And Interpretation: Examining Difficult History Topics At Eighteenth-Century Historic Sites In Southeastern Pennsylvania, Cassidy Michonski

Graduate Thesis and Dissertation 2023-2024

This thesis explores four distinct eighteenth-century historic sites in southeastern Pennsylvania and how they interpret difficult history topics. Difficult history, the parts of our nation's past that may be uncomfortable to discuss and learn about, should be included in historic site narratives to ensure that all people who lived at these sites are represented. Telling the stories of enslaved people, Indigenous groups, women, and members of the LGBTQ+ community often means addressing difficult topics. Four sites—Elfreth's Alley, Stenton, the Daniel Boone Homestead, and the 1719 Museum—were examined for this study. A review of their staff training and institutional investment in …

The Stench Of Miasma And The Fragrance Of Daffodils: Reconstructing Historical Scentscapes In Mesopotamia, Samantha N. Levy

Graduate Thesis and Dissertation 2023-2024

My thesis interrogates the role that the sense of smell plays in the experience of place, arguing that scent has been virtually ignored in public history contexts. The thesis will review the foundational scholarship on the history of the senses and relate the findings of interdisciplinary research that demonstrates how the senses alter one's understanding of the environment and even the formation of memories. This work is relevant to the field of public history since smell can be used to captivate the public in a memorable—and potentially more authentic—engagement with the Mesopotamian past. To address gaps in the present scholarship, …

A Holistic Work System Approach To Creating Flow During Transactional Work, Steven Clapp

Electronic Theses and Dissertations, 2020-2023

Psychological flow is a positive mental state where one is so fully concentrated in a challenging task that self-consciousness falls away, time seems to stand still, and the reward is the experience of meeting the challenge. Previous research on flow in the workplace has been performed on how to create conditions to promote its occurrence in workers, to describe its attendant individual and organizational benefits, and to measure it through self-reported means and physiologically. Such research has been focused on creative endeavors (such as the arts, sports, medicine, teaching), where individuals have high agency over the execution of activities needed …

Navigating With Sharks: How The Marketing Practices Help To Create Successful Phishing Emails, Erica Castilho

Graduate Thesis and Dissertation 2023-2024

A phishing email is a crime where a scammer sends an email to get sensitive data. Everyday phishing email attacks impact billions of people worldwide. Preparing users to better identify phishing and avoid risky engagement with it is essential to combat this threat. We consider that as phishing emails and email marketing aim to target email clicks, scammers can use marketing practices in phishing emails to achieve their goals. However, the security research community doesn't explore deeply the similarities between phishing and email marketing. This study presents a distinctive framework known as the Phishing Engagement Marketing Optimization (PEMO). The primary …

Exploring The Feasibility Of Machine Learning Techniques In Recognizing Complex Human Activities, Shengnan Hu

Graduate Thesis and Dissertation 2023-2024

This dissertation introduces several technical innovations that improve the ability of machine learning models to recognize a wide range of complex human activities. As human sensor data becomes more abundant, the need to develop algorithms for understanding and interpreting complex human actions has become increasingly important. Our research focuses on three key areas: multi-agent activity recognition, multi-person pose estimation, and multimodal fusion.

To tackle the problem of monitoring coordinated team activities from spatio-temporal traces, we introduce a new framework that incorporates field of view data to predict team performance. Our framework uses Spatial Temporal Graph Convolutional Networks (ST-GCN) and recurrent …

Leadership And Military Power – Can A Leadership Approach Provide A Competitive Advantage?, Lawrence E. Skelly Iii

Graduate Thesis and Dissertation 2023-2024

Leadership and Military Power – Can a Leadership Approach Provide a Competitive Advantage? When does a military commander's leadership approach give his or her unit a performance advantage? U.S. Army senior leaders have asserted that forces led using the mission command approach will have an edge in future combat. Mission command decentralizes decision-making to empower subordinates to react more successfully and seize battlefield opportunities. American forces have struggled to employ mission command partly because of a lack of understanding of the approach. This study applied two concepts from organizational psychology, empowering leadership and directive leadership, to better define and examine …

Understanding The Interactions Between Conservation Agencies And Rangers: A Mixed-Methods Approach, Christina M. Burton

Graduate Thesis and Dissertation 2023-2024

Research describing conservation agencies has generally been exploratory and limited in the use of theory. Similarly, organizational theories can provide an understanding for how organizations change and adapt to their given environments, but they have not been applied to conservation agencies with unique challenges and strains from other public bureaucracies or private corporations. In expanding this body of literature, not only were these theories applied conservation agencies, but they were also explored in what Powell and Colyvas (2008, p. 276) called "microfoundations" of organizations, which focuses on the interplay between individuals and organizations. To explore this, a convergent mixed-methods design …

Erasing The Past For Marketability: The Effects Of Selling National Myth In Ybor City's Public Historical Narrative, Janine A. Galindo

Graduate Thesis and Dissertation 2023-2024

Ybor City is a historical neighborhood in Tampa, Florida, and a tourist attraction known for its immigrant roots and once-thriving cigar industry. This thesis places Ybor City into the context of the burgeoning heritage tourism market, examining how cities financially reliant on tourism often sanitize their public historical narrative. I identify the main actors involved in Ybor City's marketing and preservation by investigating contemporary newspaper articles and multiple National Park Service documents, thereby uncovering the motivations and decisions that led to Ybor's cultural image of a bustling, relatively peaceful early 20th-century "Latin" community. To correlate Ybor's aestheticized public image with …

Optical Characterization Of Liquids: Refractive Index And Raman Gain Coefficient Measurements, Cesar A. Lopez-Zelaya

Graduate Thesis and Dissertation 2023-2024

Novel technologies capable of generating wavelengths not accessible with typical laser gain media have been among the primary drivers of the field of nonlinear optics. Here, we are interested in the linear and nonlinear properties of liquids beyond the visible spectrum, motivated in part by their use as core materials in optical fibers. Given their dispersion, nonlinearities, transparency, and ability to be mixed, liquids show potential for exploiting in-fiber nonlinear phenomena for developing the new generation of low cost, size, weight, and power wavelength-agile fiber-laser sources. For the design, modeling, and experimental realization of these liquid-core fiber laser sources, proper …

Towards A Holistic And Comparative Analysis Of The Free Content Web: Security, Privacy, And Performance, Abdulrahman Alabduljabbar

Electronic Theses and Dissertations, 2020-2023

Free content websites that provide free books, music, games, movies, etc., have existed on the Internet for many years. While it is a common belief that such websites might be different from premium websites providing the same content types in terms of their security, a rigorous analysis that supports this belief is lacking from the literature. In particular, it is unclear if those websites are as safe as their premium counterparts. In this dissertation, we set out to investigate the similarities and differences between free content and premium websites, including their risk profiles. Moreover, we analyze and quantify through measurements …

The Successful Characteristics That Contribute To Black Male Students Matriculating Into Medical School, Cedric Brown

Electronic Theses and Dissertations, 2020-2023

In 2019, individuals that identified as Black represented 13.4% of the U.S. population, 12.5% of the undergraduate student enrollment population and 7.1% of the medical school population. Subsequently, this has yielded a 5% Black physician population and workforce consisting of just 2.3% Black male physicians (AAMC, 2018). The disproportionately low Black physician representation contributes to greater healthcare disparity outcomes within the U.S. Black population. This study is centered on the post-positive characteristics of Black male medical students that have successfully overcome barriers to entry and matriculated into medical school. The phenomenological post-positive study was conducted through the lens of Self-Efficacy …

Developing A Physics-Informed Deep Learning Paradigm For Traffic State Estimation, Jiheng Huang

Electronic Theses and Dissertations, 2020-2023

The traffic delay due to congestion cost the U.S. economy $ 81 billion in 2022, and on average, each worker lost 97 hours each year during commute due to longer wait time. Traffic management and control strategies that serve as a potent solution to the congestion problem require accurate information on prevailing traffic conditions. However, due to the cost of sensor installation and maintenance, associated sensor noise, and outages, the key traffic metrics are often observed partially, making the task of estimating traffic states (TSE) critical. The challenge of TSE lies in the sparsity of observed traffic data and the …

Understanding Outgroup Aversion Effects On Innovation Adoption And Polarization In Network Environments, Bruce G. Miller

Graduate Thesis and Dissertation 2023-2024

Individuals' decisions to adopt an innovation can be influenced by the group identity of previous adopters or non-adopters in their social network. Previous research in innovation diffusion considered initial innovators and word-of-mouth imitator effects using analytical models. Simulations and agent-based models have been developed to address the heterogeneity of decision makers and the non-linearity of the process. A further refinement modeled adoption based on networks of social relationships between potential decision makers, analogous to the spread of disease on networks. In addition, adoption or non-adoption of some innovations has been characterized as a means of signaling identification with or aversion …

Patterns Of Risk Behaviors And Their Value: A Latent Class Growth Modeling Approach, Anthony Naranjo

Graduate Thesis and Dissertation 2023-2024

The current body of individual risk behavior research has been mainly driven by two streams of literature. Stable risk researchers propose individuals tend to display similar risk behaviors across time and situations due to individuals' underlying propensity to either engage in risk averse or risk seeking behaviors. Changeable risk researchers have sought out to examine variability in risk behaviors due to factors such as personality and contextual characteristics. However, might it be the case that there are subgroups of individuals who may be more prone to display static risk behaviors and other subgroup whose risk behaviors are more amendable? To …

Student Perceptions Of Campus Crime And Victim Services, Tracy Gulliford

Graduate Thesis and Dissertation 2023-2024

Few would argue that college campus crime is a serious problem across the United States. Debate arises, however, regarding why the problem is so pervasive and how best to address it. This dissertation addresses that gap by exploring the nature and magnitude of the college campus crime problem followed by a rationale for studying student perceptions regarding knowledge about and use of victim services resources offered on the University of Central Florida (UCF) campus. Doing so is particularly important in light of the fact that five years have now passed since UCF launched the "Let's Be Clear" campaign designed to …

Analyzing The Impact Of Health, Economic, And Demographic Factors On Life Expectancy: A Comparative Study Of Developed And Developing Countries, Mahyar Alinejad

Data Science and Data Mining

This study presents a comprehensive analysis of three prominent machine learning regression models—Random Forest, XGBoost, and Support Vector Machine (SVM)—in the context of predictive analysis. Leveraging a carefully curated dataset, we explore the impact of various hyperparameters on model performance through an exhaustive tuning process. The Random Forest and XGBoost models exhibit robust predictive capabilities, with the former revealing notable insights through feature importance visualization. Additionally, SVM, optimized via GridSearchCV, demonstrates competitive performance. Evaluation metrics, including Mean Squared Error and R-squared, facilitate a thorough comparison of model efficacy. Results highlight nuanced strengths and weaknesses, informing practitioners on the suitability of …

Professional Development For Graduate School: Eportfolio And Networking, Wesley Lim

High Impact Practices Student Showcase Fall 2023

The development of an ePortfolio offers a digital introduction during networking events in an increasingly technology-driven society. Throughout one semester in Biomedical Sciences Careers, MCB 3933, I developed an ePortfolio with components like a resume, personal statement, individual development plan, and elevator speech. In my ePortfolio, I had three areas of focus that showcased my highlights and skills in my undergraduate education: the academic skill sets I developed, my relevant research experiences, and my time as a teaching assistant for multiple courses.

As part of the course, students were required to contact at least four people in their desired field …

Project Nur: Illuminating Lives Through Islamic Society's Community Service In Central Florida, Adam Bawatneh

High Impact Practices Student Showcase Fall 2023

This poster presents an in-depth exploration of my service experience at the Islamic Society of Central Florida (ISCF), where I have been serving as the head chef for the Family Night event. It delves into the challenges and triumphs encountered during my service, particularly in light of the recent conflict in Palestine. The poster also reflects on the personal growth and leadership development I have experienced throughout this journey.

Eportfolio Of Haley Galvis, Haley Galvis

High Impact Practices Student Showcase Fall 2023

This ePortfolio is aimed to help me be set apart from other applicants when pursuing my path following graduation. This unique method of showcasing my undergraduate experiences helps to generate a more personal view. Through this course, I made an elevator pitch, which can be found in the "about" page. Additionally, I learned a lot about time management, while balancing this major project with the other responsibilities of this course and my other commitments. Further, I learned how important it is to reflect on an experience and connect what I learned to how I can apply it in the future.

Nursing-Related Interventions To Obstetric Violence: A Literature Review, Annaliece M. Balensiefen

Honors Undergraduate Theses

The aim of this literature search was to explore the prevalence of obstetric violence and identify nursing interventions that could potentially prevent the mistreatment of pregnant women in the United States healthcare system. Background: The topics of obstetric violence and healthcare disparities have been gaining awareness. Other countries have a larger body of research for obstetric violence compared to the U.S. Methods: CINAHL Plus with Full Text and MEDLINE databases were utilized. Global perspectives were considered in conjunction with the U.S. and specifically Florida. Healthcare disparities in obstetric care were identified, based on race, ethnicity, socioeconomic status, sexuality, disability, …

Post-Intensive Care Syndrome In Survivors Of Acute Respiratory Distress Syndrome (Ards) And Covid-19 Ards: A Descriptive Study, Sara Hassan

Honors Undergraduate Theses

Background: Post-intensive care syndrome (PICS) is an umbrella term for the long-term physical, cognitive, and mental health conditions survivors live with long after an ICU discharge. Mental health conditions experienced by survivors include anxiety, depression, and post-traumatic stress disorder (PTSD). Survivors of acute respiratory distress syndrome (ARDS) and COVID ARDS who were on a ventilator are particularly at risk of developing long-term mental health conditions.

Study Purpose: The purpose of this study was to investigate the severity of anxiety, depression, and PTSD in adult survivors of these two ARDS conditions (COVID ARDS; ARDS) who were admitted to intensive care units …

Interventions To Alleviate Guilt In Family Caregivers Of Patients Receiving Hospice Or End-Of-Life Care: A Scoping Review, Kyla N. Huelle

Honors Undergraduate Theses

This scoping review contains a literature analysis regarding interventions used by health care workers to alleviate guilt in caregivers of patients during end-of-life care. During end-of-life care, many transitions and decisions are made that add to the burden of caregivers. Family caregivers experience many physical, financial, and emotional stressors during the journey of end-of-life care, and this can result in guilt. Feelings of guilt can lead to poorer health outcomes and coping in family caregivers and should be addressed by health providers. In this scoping review, a literature search was conducted using various key terms like "guilt," "hospice," "end-of-life care," …

Nursing Interventions For Families Of Children With Down Syndrome Evaluating Coping Mechanisms And Community Resources, Ashley M. Brophy

Honors Undergraduate Theses

Down syndrome is the most common chromosomal disorder, occurring in 1 out of every 700 births in the United States (Skotko et al., 2009). After receiving the initial Down syndrome diagnosis, the majority of mothers reported feeling frightened and anxious, and very few rated the experience as positive. Parents reported feeling that their physicians focused on the negative aspects of Down syndrome and rarely provided enough resources (Skotko, 2005). The purpose of this literature review was to identify current community resources for families of children with Down syndrome and identify the most effective ways for medical professionals to support parents …

Nursing Interventions To Decrease Depressive And Anxious Symptoms In Hispanic-American Youth, Vanessa C. Hernandez

Honors Undergraduate Theses

Introduction: Hispanic-American youth are less likely to receive mental health services despite being at increased risk for depression and anxiety. Having depression and anxiety at a young age can have detrimental long-term effects such as sexual risk behavior, delinquency, and suicide. Various kinds of nurses interact with this age group which can be a missed opportunity to intervene for the welfare of these youth. Interventions exist for depression and anxiety; however, they are not specific to nurses who care for young Hispanic-American patients. Methods: An integrative literature review was performed to identify nursing interventions for Hispanic American youth with depression …

The Associations Among Racial Discrimination, Perceived Stress And Birth Satisfaction Among Black Women, Amanda De La Serna

Electronic Theses and Dissertations, 2020-2023

The purpose of this dissertation research was to examine the associations among experiences of racial discrimination, perceived stress and birth satisfaction among Black women, and to examine the mediating effect of perceived stress on the association of experiences of racial discrimination with birth satisfaction among Black women. The first manuscript is an integrative literature review which evaluates prior research of the association of stress with birth satisfaction, with consideration to studies that included Black women in their samples. This review revealed a need for further research evaluating stress and birth satisfaction specific to Black women. The second manuscript examines the …

A Puerto Rican Diasporic Study In Central Florida, Chelsea Vélez

Electronic Theses and Dissertations, 2020-2023

This study seeks to explicate the intercultural experiences of Puerto Ricans within the diaspora of Central Florida. Specifically, the navigation of communication behaviors among intergroup and outgroup behaviors as Puerto Rican individuals acculturate into the area. This study utilizes communication accommodation theory as its basis to understand integration into a host culture and the impacts on socio-cultural communication behaviors. Findings show the importance of studying diasporic communities as they develop such as that of the Puerto Rican community in Central Florida because it situates the reality of an individual and groups sense of identity in a new cultural context. This …

Dormant Propagules In Demographic Studies: A Recurrent Bias And Potential Solutions, Federico Borghesi

Graduate Thesis and Dissertation 2023-2024

In the face of unprecedented anthropogenic change, we increasingly turn to emergent technologies and extensive data sets for solutions that complement much needed systemic changes in our societies. These technological solutions, however, must be approached with care. We must recognize and address biases in the way data has been accumulated. In demographic studies, dormant life stages, such as seed banks, and other cryptic factors have often been neglected. The potential consequences of these omissions have been extensively described in the literature. In the first chapter, I analyze patterns of seed bank omissions in demographic models, finding unjustified omissions are widespread …

The Dynamical Measurement And Modeling Of Metacognition And Engagement Using Self-Report And Multimodal Data With Advanced Learning Technologies, Megan Wiedbusch

Electronic Theses and Dissertations, 2020-2023

Interdisciplinary research has demonstrated that learning and problem solving with advanced learning technologies (ALTs) such as intelligent tutoring systems, simulations, hypermedia, serious games, and virtual reality can promote and foster the development of 21st century skills (e.g., collaboration, problem solving, self-regulated learning) by measuring and using the interactions between cognitive, affective, metacognitive, motivational, and social (CAMMS) processes. Interdisciplinary researchers focused on self-regulated learning (SRL) have developed several theoretical models which model students' CAMMS processes and their learning behaviors. However, when empirically testing these models, researchers face complicated methodological decisions around modeling, measuring, processing, and analyzing student data. Many of these …