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A Comprehensive Investigation Of Hispanic Student Success In Gateway Stem Courses At Five State Of Florida Institutions, Renee Becker Jan 2020

A Comprehensive Investigation Of Hispanic Student Success In Gateway Stem Courses At Five State Of Florida Institutions, Renee Becker

Electronic Theses and Dissertations, 2020-2023

National employment data forecasts a significant need for graduates in the STEM disciplines for middle-income American jobs. If the American labor force is to keep pace with the global economy, it is critically important that American higher education increase STEM degree production. Currently, minority populations lack access and thus opportunity for success in higher education, but, among them, Hispanic peoples account for about 59 million Americans, are the youngest demographic, and have the highest growth rate of any ethnic group. Hispanic students are inadequately represented in higher education enrollment numbers, graduation rates, graduate degree attainment, and STEM degree attainment. While …

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Transfunctions And Other Topics In Measure Theory, Jason Bentley Jan 2020

Transfunctions And Other Topics In Measure Theory, Jason Bentley

Electronic Theses and Dissertations, 2020-2023

Measures are versatile objects which can represent how populations or supplies are distributed within a given space by assigning sizes to subregions (or subsets) of that space. To model how populations or supplies are shifted from one configuration to another, it is natural to use functions between measures, called transfunctions. Any measurable function can be identified with its push-forward transfunction. Other transfunctions exist such as convolution operators. In this manner, transfunctions are treated as generalized functions. This dissertation serves to build the theory of transfunctions and their connections to other mathematical fields. Transfunctions that identify with continuous or measurable push-forward …

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Social Science Teachers' Comfort Teaching A Variety Of Controversial Issues, Bonnie Bittman Jan 2020

Social Science Teachers' Comfort Teaching A Variety Of Controversial Issues, Bonnie Bittman

Electronic Theses and Dissertations, 2020-2023

Inclusion of discussion concerning controversial issues has been a part of education in the United States since the advent of public education. Using an online, social media platform, the researcher investigated demographic, environmental, and personal characteristics of social science teachers to determine their willingness and comfort levels in discussing controversial issues in a social science classroom. This study of 91 participants included teachers' age, gender, race, educational history, religious and political beliefs, and the developed environment of each school to determine how teacher and school demographics influenced teachers' willingness and comfort levels discussing controversial issues in classrooms. The independent variables …

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Open-Ended Search Through Minimal Criterion Coevolution, Jonathan Brant Jan 2020

Open-Ended Search Through Minimal Criterion Coevolution, Jonathan Brant

Electronic Theses and Dissertations, 2020-2023

Search processes guided by objectives are ubiquitous in machine learning. They iteratively reward artifacts based on their proximity to an optimization target, and terminate upon solution space convergence. Some recent studies take a different approach, capitalizing on the disconnect between mainstream methods in artificial intelligence and the field's biological inspirations. Natural evolution has an unparalleled propensity for generating well-adapted artifacts, but these artifacts are decidedly non-convergent. This new class of non-objective algorithms induce a divergent search by rewarding solutions according to their novelty with respect to prior discoveries. While the diversity of resulting innovations exhibit marked parallels to natural evolution, …

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Exoplanets: Correlated Noise And Cautionary Tales, Ryan Challener Jan 2020

Exoplanets: Correlated Noise And Cautionary Tales, Ryan Challener

Electronic Theses and Dissertations, 2020-2023

Transiting exoplanets provide the best opportunity for planetary characterization, and thus the search for life outside the Solar System. These planets orbit such that they pass in front ("transit'') and behind ("eclipse'') their host star, and a spectrum of the lost flux constrains the atmospheric properties of the planet. In transits, the flux modulation scales with the cross-sectional area of the planet, and the spectrum includes signatures of molecules in the upper atmosphere of the planet's terminator, which the host star's light passes through on the way to the observer. With eclipses, the lost flux is the direct emission of …

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(Main)Streaming Hate: Analyzing White Supremacist Content And Framing Devices On Youtube, Christopher Charles Jan 2020

(Main)Streaming Hate: Analyzing White Supremacist Content And Framing Devices On Youtube, Christopher Charles

Electronic Theses and Dissertations, 2020-2023

The emboldening of white supremacist groups, as well as their increased mainstream presence in online circles, necessitates the creation of studies that dissect their tactics and rhetoric, while offering platform-specific insights. This study seeks to address these needs by analyzing white supremacist content and framing devices on the video hosting website, YouTube. Data were collected through a multi-stage sampling technique, designed to capture a 'snapshot' of white supremacist content on the platform during a 45-day period in 2019. After line-by-line coding and qualitative thematic analysis, results showed that sampled channels varied between different levels of color-blindness and overt racialization in …

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Dispositional, Place Perceptions, And Imagination: The Interactive Network Of Authenticity, Ying Chao Jan 2020

Dispositional, Place Perceptions, And Imagination: The Interactive Network Of Authenticity, Ying Chao

Electronic Theses and Dissertations, 2020-2023

The purposes of this dissertation are threefold: to define and operationalize different types of authenticity, to test the interactive network of different types of authenticity, and to test the relationships between authenticity and tourist outcome variables including transformation, place attachment, and loyalty. In psychology, authenticity is typically conceptualized to be subject-based in nature, referring to a person's state of being true to oneself across contexts and against external influences. This type of authenticity has been termed "dispositional authenticity" and operationalized in this study in dimensions of authentic living, accepting external influence, and self-alienation. In tourism, authenticity is usually considered to …

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The Synthesis Of Palladium-Platinum Core-Shell Nanoparticles With High Catalytic Peroxidase Activities For Biosensing Applications, Edwin Davidson Jan 2020

The Synthesis Of Palladium-Platinum Core-Shell Nanoparticles With High Catalytic Peroxidase Activities For Biosensing Applications, Edwin Davidson

Electronic Theses and Dissertations, 2020-2023

In recent years, peroxidase mimic nanostructures have attracted special interest due to their low cost, high stability, and high catalytic activity. Herein, we demonstrate the use of Pd-Pt nanocubes (NCs) to achieve the rapid and sensitive colorimetric detection of ascorbic acid (AA), commonly known as vitamin C. The colored signal generated by the catalyzed oxidation of 3,3',5,5'-tetramethylbenzidine (TMB) by the decomposition of hydrogen peroxide (H2O2) is quenched in the presence of AA based on its antioxidant property. This colorimetric method attains a detection limit of 0.40 µM and a linear range from 0 to 15 µM, with good linearity. To …

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The Uniqueness Of A Kingdom: The Frontier Kingdom Of Norman Sicily In Comparative Perspective, Onyx De La Osa Jan 2020

The Uniqueness Of A Kingdom: The Frontier Kingdom Of Norman Sicily In Comparative Perspective, Onyx De La Osa

Electronic Theses and Dissertations, 2020-2023

The frontier was once described as lands on the periphery of a culture. I argue that frontier spaces are a third space where hybridity can occur. Several of these areas existed in the medieval world with many centering around the Mediterranean and its surrounding lands. The Norman kingdom of Sicily is one such place. Utilizing three chronicles of the time, while looking through the lens of the frontier, something not done by other modern historical texts, a distinctiveness begins to become apparent. The geographic location, the island's past, and the eventual conquest by the Normans provide a base for hybridity …

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Pre-Service Teacher Perceptions Of Pronunciation Teaching: A Qualitative Investigation, Madelyn Diller Jan 2020

Pre-Service Teacher Perceptions Of Pronunciation Teaching: A Qualitative Investigation, Madelyn Diller

Electronic Theses and Dissertations, 2020-2023

Pronunciation teaching has long been overlooked in areas of research, especially those of language teacher cognition (Couper, 2017; Macdonald, 2002). In language teacher education, narrative inquiry provides a basis for expert mediation and growth in perceived areas of challenge (Johnson, 2009; Johnson & Golombek, 2002) through the lens of language teacher cognition (Baker & Murphy, 2011). Through tracking reflections of pre-service teachers who observed a pronunciation course led by an experienced English teacher, this study examines a secondary data set of narrative reflections in correspondence with an observed pronunciation course. The results are organized into themes and subthemes which highlight …

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Assessing Stress Outcomes Of Interpersonal Helping: An Application Of Hindrance Stress Appraisals, Michael Distaso Jan 2020

Assessing Stress Outcomes Of Interpersonal Helping: An Application Of Hindrance Stress Appraisals, Michael Distaso

Electronic Theses and Dissertations, 2020-2023

Organizational citizenship behaviors (OCBs), including interpersonal helping, have traditionally been framed as explicitly positive behaviors with positive outcomes. The present study extended both theory on negative outcomes of OCB and the challenge-hindrance framework by applying the appraisal perspective of the challenge-hindrance framework to the study of helping events. The study employed an event sampling method that asked participants to report critical incidents of helping events that occurred at work. Results showed that perceived help difficulty predicted hindrance appraisals of help, but daily workload did not. This suggests that the content of helping event is more important than circumstantial factors surrounding …

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Understanding The Role Of Social Networks In Influencing Adult's Participations In Physical Activity In Unequal Physical And Social Environment, Ting Du Jan 2020

Understanding The Role Of Social Networks In Influencing Adult's Participations In Physical Activity In Unequal Physical And Social Environment, Ting Du

Electronic Theses and Dissertations, 2020-2023

Physical inactivity has become a public health crisis which can be the trigger to many other chronic diseases. Participation in physical activity is correlated with a variety of factors at multiple levels, including individual physical and psychological health, interpersonal social support, and community physical and social environments. Previous studies found that individuals' social networks influenced health behaviors, including physical activity. However, it remains unclear how social networks at different life stages affect adult engagement in physical activity among different socio-demographic groups. Built upon a theoretical framework which integrates the social-ecological model, social cognitive theory and social network theory, this study …

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What Do You Do When You Are Bored? Outcomes And Moderators Of Job Boredom, Mitchell Eid Jan 2020

What Do You Do When You Are Bored? Outcomes And Moderators Of Job Boredom, Mitchell Eid

Electronic Theses and Dissertations, 2020-2023

While little research on job boredom currently exists, most has focused on its connection to outcomes which are harmful to organizations. However, there is research that suggests boredom may have a positive relationship to creativity. The current study hypothesized that job boredom would be positively related to workplace creativity and that this relationship would be moderated by openness to experience. The current study also attempted to replicate previous research linking job boredom to counterproductive work behavior with boredom proneness as a moderator. Data were collected from 219 participants through a self-report survey on MTURK and analyzed with moderated regression analyses. …

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Extracting Data-Level Parallelism In High-Level Synthesis For Reconfigurable Architectures, Juan Andres Escobedo Contreras Jan 2020

Extracting Data-Level Parallelism In High-Level Synthesis For Reconfigurable Architectures, Juan Andres Escobedo Contreras

Electronic Theses and Dissertations, 2020-2023

High-Level Synthesis (HLS) tools are a set of algorithms that allow programmers to obtain implementable Hardware Description Language (HDL) code from specifications written high-level, sequential languages such as C, C++, or Java. HLS has allowed programmers to code in their preferred language while still obtaining all the benefits hardware acceleration has to offer without them needing to be intimately familiar with the hardware platform of the accelerator. In this work we summarize and expand upon several of our approaches to improve the automatic memory banking capabilities of HLS tools targeting reconfigurable architectures, namely Field-Programmable Gate Arrays or FPGA's. We explored …

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Under Pressure: Analysis Of An Undergraduate Intervention For Stem Students In Academic Decline, Dena Ford Jan 2020

Under Pressure: Analysis Of An Undergraduate Intervention For Stem Students In Academic Decline, Dena Ford

Electronic Theses and Dissertations, 2020-2023

Students who successfully persist in STEM majors often gain positive attention highlighting their preparation and ability, though far too often, students who struggle while persisting in the major go unnoticed. This research analyzed demographics and characteristics of select undergraduate STEM majors with a focus on biology and forensic science who were not reaching the major GPA benchmark requirements. These students were persisting while in academic decline. Characteristics of interest in this study include self-reported level of familial pressure to be in the major, anxiety level of current declared major, and course workload anxiety level as well as admit type (either …

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Stage Dives And Shared Mics: Ethnographic Perspectives On Community And Networking In The Central Florida Punk Rock Scene, Lauren Friedman Jan 2020

Stage Dives And Shared Mics: Ethnographic Perspectives On Community And Networking In The Central Florida Punk Rock Scene, Lauren Friedman

Electronic Theses and Dissertations, 2020-2023

Music remains an important aspect of culture and society, proven by copious academic studies exploring how humans create, experience, and utilize it. The emergence of punk rock as a music genre and scene of interconnected individuals in the mid-to-late 1970s provides significant insight into social and political attitudes of the time. Punk rock's continued existence in the present day reflects similar themes to its first incarnation besides forging new directions for the genre and the scene. In this study I examine social factors within the current Central Florida punk rock scene that contribute to its evolution and longevity. I used …

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Alexander: A Dive Into Identity, Inspiration, And Release Of The Creative Self, Alyssa Garoogian Jan 2020

Alexander: A Dive Into Identity, Inspiration, And Release Of The Creative Self, Alyssa Garoogian

Electronic Theses and Dissertations, 2020-2023

Alexander is a story of overcoming the fear of personal artistic expression. Alexander is the son of an affluent family who was found to have musical talent at a young age. Alex grows to enjoy music, but rote exercises alone begin to disillusion the promising musician. Regardless, Alexander dutifully practices piano exercises daily, bored by the lack of creative stimulation but afraid to openly admit it. After an accidental music note sparks his imagination, Alexander escapes into fantasy: a colorful visualization of the original music he creates. Within this fantasy, a warm, supportive community leads Alexander to his most significant …

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Improving Traffic Safety And Efficiency By Adaptive Signal Control Systems Based On Deep Reinforcement Learning, Yaobang Gong Jan 2020

Improving Traffic Safety And Efficiency By Adaptive Signal Control Systems Based On Deep Reinforcement Learning, Yaobang Gong

Electronic Theses and Dissertations, 2020-2023

As one of the most important Active Traffic Management strategies, Adaptive Traffic Signal Control (ATSC) helps improve traffic operation of signalized arterials and urban roads by adjusting the signal timing to accommodate real-time traffic conditions. Recently, with the rapid development of artificial intelligence, many researchers have employed deep reinforcement learning (DRL) algorithms to develop ATSCs. However, most of them are not practice-ready. The reasons are two-fold: first, they are not developed based on real-world traffic dynamics and most of them require the complete information of the entire traffic system. Second, their impact on traffic safety is always a concern by …

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Data-Driven Nonlinear Control Designs For Constrained Systems, Roland Harvey Jan 2020

Data-Driven Nonlinear Control Designs For Constrained Systems, Roland Harvey

Electronic Theses and Dissertations, 2020-2023

Systems with nonlinear dynamics are theoretically constrained to the realm of nonlinear analysis and design, while explicit constraints are expressed as equalities or inequalities of state, input, and output vectors of differential equations. Few control designs exist for systems with such explicit constraints, and no generalized solution has been provided. This dissertation presents general techniques to design stabilizing controls for a specific class of nonlinear systems with constraints on input and output, and verifies that such designs are straightforward to implement in selected applications. Additionally, a closed-form technique for an open-loop problem with unsolvable dynamic equations is developed. Typical optimal …

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Interactions Between Humans, Virtual Agent Characters And Virtual Avatars, Tamara Griffith Jan 2020

Interactions Between Humans, Virtual Agent Characters And Virtual Avatars, Tamara Griffith

Electronic Theses and Dissertations, 2020-2023

Simulations allow people to experience events as if they were happening in the real world in a way that is safer and less expensive than live training. Despite improvements in realism in simulated environments, one area that still presents a challenge is interpersonal interactions. The subtleties of what makes an interaction rich are difficult to define. We may never fully understand the complexity of human interchanges, however there is value in building on existing research into how individuals react to virtual characters to inform future investments. Virtual characters can either be automated through computational processes, referred to as agents, or …

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Drug Availability And Disparities In Arrests, Robert Hellmuth Jan 2020

Drug Availability And Disparities In Arrests, Robert Hellmuth

Electronic Theses and Dissertations, 2020-2023

Racial disparities in arrests in the United States are well-documented. Particularly, young black males are arrested at inordinately higher rates than other demographics. In this research, we investigated whether an unresearched variable—drug availability—could explain these discrepancies found in the US criminal justice system. Research suggests race is an extralegal (unrelated to the law) factor associated with arrest rates. Until this study, no research has investigated whether an individuals' access to illegal drugs might be related to likelihood of being arrested. If illicit substances might be more easily obtained by individuals of a specific race, could this explain inequalities in arrest …

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Experimentation And Simulation Of Pulsed Eddy Current Thermography Of Subsurface Aircraft Corrosive Defects, Johnathan Hernandez Jan 2020

Experimentation And Simulation Of Pulsed Eddy Current Thermography Of Subsurface Aircraft Corrosive Defects, Johnathan Hernandez

Electronic Theses and Dissertations, 2020-2023

During the life cycle of aircraft, external structures are under constant attack from environmental degradation in the form of corrosion. Corrosive defects consist of multiple types of surface and subsurface damage that are often undetectable due to surface coatings or insulation leading to loss in structural integrity. Non-destructive techniques for corrosion detection typically require the removal of paint. Detection of corrosion under insulation (CUI) is highly valuable for cost and time effectiveness. Although techniques have been developed for detection of CUI, not many of these satisfy the criteria for portability and hangar operation. To address this, multiple techniques were investigated …

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Move Your Body, Change Your Mind: Physical Activity In The Morning And Its Implications For Work, Charlotte Holden Jan 2020

Move Your Body, Change Your Mind: Physical Activity In The Morning And Its Implications For Work, Charlotte Holden

Electronic Theses and Dissertations, 2020-2023

Drawing upon the broaden-and-build theory of positive emotions (Fredrickson, 2001), this study examines the links between morning physical activity, subsequent positive emotions, broadened thinking, and psychological resource accumulation at work. Fifty-two participants who worked full-time completed a daily diary for 10 workdays that included measures of their emotions and physical activity each morning and measures of broadened thinking each afternoon. Psychological resources were assessed at the beginning and end of the 10-day period. Data were analyzed using multilevel structural equation modeling (MSEM) with Mplus. Results did not support the mediating role of positive emotions and broadened thinking between morning physical …

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High-Fidelity Mini-Led And Micro-Led Displays, Yuge Huang Jan 2020

High-Fidelity Mini-Led And Micro-Led Displays, Yuge Huang

Electronic Theses and Dissertations, 2020-2023

Mini-LED and micro-LED are emerging disruptive display technologies, because they can work as local dimmable backlight to significantly enhance the dynamic range of conventional LCDs, or as sunlight readable emissive displays. However, there are still unresolved issues impairing their display fidelity: 1) motion blur on high-resolution, large-size and high-luminance devices, 2) limited contrast ratio on mini-LED backlit LCD (mLED-LCD), 3) relatively high power consumption, and 4) compromised ambient contrast ratio. This dissertation tackles with each of these issues for achieving high display fidelity. Motion blur is caused by slow liquid crystal response time and image update delays. Low-duty ratio operation …

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An Exploration Of Evolving Faculty Instructional Beliefs And Practices Viewed Through The Lens Of Transformative Learning, Joseph Huston Jan 2020

An Exploration Of Evolving Faculty Instructional Beliefs And Practices Viewed Through The Lens Of Transformative Learning, Joseph Huston

Electronic Theses and Dissertations, 2020-2023

The purpose of this study was to explore the phenomenon of transformative learning within the context of instructional beliefs and practices among collegiate math and science faculty. Participants included nine full-time instructional faculty teaching within a biological science, mathematics, or physical science department at a public, two-year degree-granting state college. The study employed a qualitative research methodology, engaging participants in semi-structured interviews through a descriptive phenomenological design. Qualitative coding and thematic analysis were conducted, consistent with Colaizzi's (1978) Method for phenomenological research. Data analysis resulted in the emergence of four themes related to transformative learning experiences and four themes related …

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Experimental And Numerical Investigations Of Granular Dynamics In Microgravity, Stephanie Jarmak Jan 2020

Experimental And Numerical Investigations Of Granular Dynamics In Microgravity, Stephanie Jarmak

Electronic Theses and Dissertations, 2020-2023

During the first stages of planet formation small particles (~0.1 – 1 µm) in the protoplanetary disk collide at low relative velocities (less than 1 m/s) and tend to aggregate into cm-size "pebbles" through a combination of electrostatic interactions and gravitational streaming instabilities. Particles in this size regime also compose a layer of regolith on small, airless bodies that evolves under conditions very different than those on Earth. Characterizing the response of regolith to low-energy impacts in a microgravity environment is therefore critical to our understanding of the processes that lead to the formation of these objects and our ability …

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Mill Cove Complex Lithic Typology: Understanding Early Mississippian Period Social Exchange In Northeastern Florida, Sherman Johns Jan 2020

Mill Cove Complex Lithic Typology: Understanding Early Mississippian Period Social Exchange In Northeastern Florida, Sherman Johns

Electronic Theses and Dissertations, 2020-2023

A large focus of Mississippian period archaeological research concerns itself with the role groups have played in the long distance social exchange networks prevalent across the Mississippian World. The Mill Cove Complex, a Mississippian period (A.D. 900-1250) village and dual sand mound burial complex situated on the periphery of the Mississippian World in Jacksonville, Florida is one such case. The St. Johns II people living at the Mill Cove Complex had connections deep into the Mississippian southeast reaching all the way to Cahokia. Understanding the role of these unique people within the large social networks requires an examination of all …

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Incels And The Manosphere: Tracking Men's Movements Online, Annie Jones Jan 2020

Incels And The Manosphere: Tracking Men's Movements Online, Annie Jones

Electronic Theses and Dissertations, 2020-2023

Throughout history, men have responded to feminist progress with political backlash. Pre-internet men's groups used biological constructions of gender as a method of reinforcing patriarchal power by restricting the rights of women. Today, the same methods are used in a loose collection of men's rights groups online called 'the manosphere'. Within the manosphere, men who identify as involuntarily celibate (incels) blame women for their perceived loss of masculine power. Some incels have taken their anti-feminist backlash offline through acts of mass violence, suggesting an emergent need for social science research into the incel identity. This paper outlines the theoretical orientation …

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Factors Related To Physical Education Course Enrollment At The Community College Level, Jennifer Katz Jan 2020

Factors Related To Physical Education Course Enrollment At The Community College Level, Jennifer Katz

Electronic Theses and Dissertations, 2020-2023

This study was designed to evaluate the factors related to Physical Education course enrollment at a predominately two-year state college operating under a community college model in the state of Florida as it pertains to enrollment declines in electives focused on health and wellness. The mixed-methods study included a survey of current students at the college (n =177) perceptions and reasons for enrolling in physical education classes. Further, a historical data analysis (n = 87,399) of students' institutional records was conducted to investigate the relationship between student success and physical education. Groups included those who took physical education courses and …

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Life Narratives As Technologies Of Self: Explorations Of Agency In A Son Of The Forest And The Autobiography Of Malcolm X, Tiffanie Kelley Jan 2020

Life Narratives As Technologies Of Self: Explorations Of Agency In A Son Of The Forest And The Autobiography Of Malcolm X, Tiffanie Kelley

Electronic Theses and Dissertations, 2020-2023

In A Son of the Forest (1829) and The Autobiography of Malcolm X (1965), the narrators describe their most formative experiences in relation to addiction and their respective religions. Though these narratives emerged at different periods (almost a century apart) in North American history, there are considerable similarities between them. As William Apess describes his struggle with alcoholism, he also appropriates both the language of popular literature and print culture in the Methodist movement, and in turn criticizes the white supremacist ideals ingrained in early American culture. Similarly, Malcolm X details his experience with substance abuse while criticizing white supremacist …

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