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Integrating Technology Acceptance Model And Health Belief Model Factors To Better Estimate Intelligent Tutoring System Use For Surge Capacity Public Health Events And Training, Sarah Matthews
Electronic Theses and Dissertations, 2020-2023
The U.S. public health system is continually challenged by unexpected epidemiological events that pose significant risks to the health of the community and require a commensurate surge in the public health system capacity to stem the spread of the disease. The complexity and even changing nature of funding and surge events drives agencies to innovate in order to maintain and support a competent workforce as well as update, or evolve the knowledge, skills and abilities (KSA) necessary to prevent, mitigate, or even eliminate the health crisis arising from a disease. This research investigates the capability of an agent-based, online personalized …
Two's Accompany: Understanding Acceptance Through Animation, Brian Phinn
Two's Accompany: Understanding Acceptance Through Animation, Brian Phinn
Electronic Theses and Dissertations, 2020-2023
Animation as a medium has broad appeal based on its ability to convey stories in universal ways. This art form bridges cultural barriers that allow relationships to form through shared interests. Music also shares similar traits. Based on the global understanding of music and its history of use in film, the conclusion is the acceptance of different musical tastes can parallel acceptance of differing ideologies. When clashing ideological beliefs cause societal conflict, it is essential to remember that friendships cultivate through commonalities. The purpose of this study is to create an animated short film that presents the story of two …
Distributed Multi-Agent Optimization And Control With Applications In Smart Grid, Towfiq Rahman
Distributed Multi-Agent Optimization And Control With Applications In Smart Grid, Towfiq Rahman
Electronic Theses and Dissertations, 2020-2023
With recent advancements in network technologies like 5G and Internet of Things (IoT), the size and complexity of networked interconnected agents have increased rapidly. Although centralized schemes have simpler algorithm design, in practicality, it creates high computational complexity and requires high bandwidth for centralized data pooling. In this dissertation, for distributed optimization of networked multi-agent architecture, the Alternating Direction Method of Multipliers (ADMM) is investigated. In particular, a new adaptive-gain ADMM algorithm is derived in closed form and under the standard convex property to greatly speed up the convergence of ADMM-based distributed optimization. Using the Lyapunov direct approach, the proposed …
Patients With A Left Ventricular Device And Factors Affecting Readmission, Diana Pitcher
Patients With A Left Ventricular Device And Factors Affecting Readmission, Diana Pitcher
Electronic Theses and Dissertations, 2020-2023
Patients with a left ventricular assist device have a high rate of hospital readmissions after their index (placement of left ventricular device) discharge. With these devices becoming more common providers of care must understand why this population is being readmitted in order to promote well-being and keep patients out of the hospital. The purpose of this study was to identify and describe characteristics of the hospital readmission. This research study was a retrospective analysis of aggregate data from 2013-2019 with a sample size n = 32. The summary of data was described with descriptive statistics. The data was grouped and …
Investigations On The Use Of Hyperthermia For Breast Cancer Treatment, Sreekala Suseela
Investigations On The Use Of Hyperthermia For Breast Cancer Treatment, Sreekala Suseela
Electronic Theses and Dissertations, 2020-2023
Hyperthermia using electromagnetic energy has been proven to be an effective method in the treatment of cancer. Hyperthermia is a therapeutic procedure in which the temperature in the tumor tissue is raised above 42°C without causing any damage to the surrounding healthy tissue. This method has been shown to increase the effectiveness of radiotherapy and chemotherapy. Radio frequencies, microwave frequencies or focused ultrasound can be used to deliver energy to the tumor tissue to attain higher temperatures in the tumor region for hyperthermia application. In this dissertation the use of a near field focused (NFF) microstrip antenna array for the …
Study On Comprehensive Mechanical Properties Of Metallic Matrix Cnt Nano-Composites, Shutao Song
Study On Comprehensive Mechanical Properties Of Metallic Matrix Cnt Nano-Composites, Shutao Song
Electronic Theses and Dissertations, 2020-2023
Carbon nanotubes (CNT) have excellent mechanical strengths, electrical conductivity, and thermal conductivity. CNT reinforced metallic nano-composites are viewed as a great candidate to replace traditional alloy materials. It has been shown that CNTs can greatly enhance the strength, thermal conductivity, and electrical conductivity of composites. However, the ductility of composites would deteriorate due to the addition of CNTs if the fabrication or/and processing methods are not improved or well designed. This dissertation investigated (1) the strengthening mechanisms of CNT on metallic matrix, such as mechanical strength and thermal conductivity, and (2) analytical modeling on the strength-ductility trade-off of CNT reinforced …
The Dollar General: Continuous Custom Gesture Recognition Techniques At Everyday Low Prices, Eugene Taranta
The Dollar General: Continuous Custom Gesture Recognition Techniques At Everyday Low Prices, Eugene Taranta
Electronic Theses and Dissertations, 2020-2023
Humans use gestures to emphasize ideas and disseminate information. Their importance is apparent in how we continuously augment social interactions with motion—gesticulating in harmony with nearly every utterance to ensure observers understand that which we wish to communicate, and their relevance has not escaped the HCI community's attention. For almost as long as computers have been able to sample human motion at the user interface boundary, software systems have been made to understand gestures as command metaphors. Customization, in particular, has great potential to improve user experience, whereby users map specific gestures to specific software functions. However, custom gesture recognition …
Advanced Econometic Models For Modeling Flows: Application To Shared Economy, Bibhas Dey
Advanced Econometic Models For Modeling Flows: Application To Shared Economy, Bibhas Dey
Electronic Theses and Dissertations, 2020-2023
Travel and tourism industry is undergoing transformation with the flourishing of online sharing economy marketplaces such as Bike Share services, Uber/Lyft (for taxi services), Eatwith (for community restaurants), and AirBnB (for accommodation). The current research effort contributes to literature on sharing economy service flow analysis by formulating and estiamting econometric approaches for analyzing frequency variables. The sharing economy alternatives investigated include: (a) accommodation service (AirBnB), (b) bikeshare service (Citi bike, NYC) and (c) ride hailing service (UBER/LYFT/Taxi). In the first part of the dissertation, we develop a copula based negative binomial count model framework to count AirBnB listings at census …
Multi-Species Measurements At High Temperatures Using Advanced Mid-Infrared Laser Schemes, Zachary Loparo
Multi-Species Measurements At High Temperatures Using Advanced Mid-Infrared Laser Schemes, Zachary Loparo
Electronic Theses and Dissertations, 2020-2023
High-temperature reacting systems are central to many fields including propulsion, power generation, and transportation. Studying such systems requires the use of experimental facilities such as shock tubes to obtain the relevant high temperature conditions, and non-intrusive diagnostic tools for monitoring parameters of interest in the reaction zone, including temperature and species concentration time-histories. Laser absorption spectroscopy offers high-speed, in-situ measurements of the reacting flow field and provides direct measurements of species concentrations and temperature. Applying absorption spectroscopy via different diagnostic strategies enables tailored measurements of these parameters across a variety of combustion systems for chemical kinetic model refinement and enhancing …
Synthesis Of Ruthenium Bipyridine Conjugated Antibiotic For Fluorescence Lifetime Imaging And Spectroscopy Aided Tracking In Citrus, Ryan Parente
Electronic Theses and Dissertations, 2020-2023
Antibiotic treatment of systemic bacterial plant pathogens is an established practice in many crops; however, in citrus it has only recently become available for growers to utilize against Huanglongbing disease. The preliminary efficacy of these treatments is uncertain due to the inability to track their presence in phloem. The need to monitor their movement in planta, especially their presence and translocation in vascular tissue, is a necessary step in clarifying their effectiveness. Previous work has shown the value of Fluorescence Lifetime Imaging (FLIM) in distinguishing between fluorescent probes and plant tissue autofluorescence, which is normally a barrier in photochemical studies …
The Effects Of Social Conformity In Human-Robot Interaction, William Volante
The Effects Of Social Conformity In Human-Robot Interaction, William Volante
Electronic Theses and Dissertations, 2020-2023
While previous work has investigated aspects of the robot, the human, and the environment as influential factors in the human-robot relationship, little work has examined the role of social conformity in this relationship. As social conformity has been shown to affect human-human choice, relationships, and trust, there are a-priori reasons to believe that it will play an influential role in human-robot interaction (HRI) scenarios as well. Early research into the influence of social conformity in human-robot interaction (HRI) did not find the effect to be present with robots, however more recent work has adapted the methodological paradigm to find more …
Towards Large-Scale And Robust Code Authorship Identification With Deep Feature Learning, Mohammed Abuhamad
Towards Large-Scale And Robust Code Authorship Identification With Deep Feature Learning, Mohammed Abuhamad
Electronic Theses and Dissertations, 2020-2023
Successful software authorship identification has both software forensics applications and privacy implications. However, the process requires an efficient extraction of quality authorship attributes. The extraction of such attributes is very challenging due to several factors such as the variety of software formats, number of available samples, and possible obfuscation or adversarial manipulation. We focus on software authorship identification from three central perspectives: large-scale single-authored software, real-world multi-authored software, and the robustness assessment of code authorship identification methods against adversarial attacks. First, we propose DL-CAIS, a deep Learning-based approach for software authorship attribution, that facilitates large-scale, format-independent, language-oblivious, and obfuscation-resilient software …
Monitoring Pathological Gene Expression And Studying Endogenous Epigenetic Architecture By Crispr/Cas9-Based Tool Development Using Alpha-Synuclein As A Model, Levi Adams
Electronic Theses and Dissertations, 2020-2023
Until recently, complete understanding of the endogenous activity of pathologically relevant genes was out of reach and research was confined to in situ work, plasmid-based constructs and artificial model systems. The development and expansion of the CRISPR/Cas9 genome editing technique has enabled us to explore the molecular underpinnings of gene activation using the cell's own endogenous regulatory environment. In this work, we report on the development of a novel tool to monitor the endogenous activity of a causative gene in Parkinson's disease, a-synuclein. We use CRISPR/Cas9 to insert a highly sensitive engineered luciferase at the C-terminal of a-synuclein and assessed …
Mechanical Behavior Assessment Of Ti-6al-4v Alloy Produced By Laser Powder Bed Fusion, Asif Mahmud
Mechanical Behavior Assessment Of Ti-6al-4v Alloy Produced By Laser Powder Bed Fusion, Asif Mahmud
Electronic Theses and Dissertations, 2020-2023
The present work correlates quasi-static, tensile mechanical properties of additively manufactured Ti-6Al-4V (Grade 23) alloy to the phase constituents, microstructure and fracture surface characteristics that changed with post-heat treatment of stress relief (670 °C for 5h) and hot isostatic pressing (HIP with 100MPa at 920 °C for 2h). Ti-6Al-4V alloy tensile specimens in both the horizontal (i.e., X and Y) and vertical (Z) directions were produced by laser powder bed fusion (LPBF) technique. Mechanical properties were determined using quasi-static, tensile testing for both the as-stress-relieved (ASR) and HIP specimens. For the ASR and HIP samples built in X, Y and …
Development And Characterization Of A Novel Serum Free Human Ipsc Motoneuron-Primary Human Schwann Cell Model Of Myelination, Aakash Patel
Development And Characterization Of A Novel Serum Free Human Ipsc Motoneuron-Primary Human Schwann Cell Model Of Myelination, Aakash Patel
Electronic Theses and Dissertations, 2020-2023
Myelination and node of Ranvier formation play an important role in saltatory conduction of axonal action potentials in the peripheral nervous system (PNS). Degeneration or damage of this myelin can lead to impairment in the conduction of signals by the axons, and cause deficits in sensory and motor function. Currently, animal-based models are the primary method used to study myelination; however, data generated in animal models generally translate poorly to humans, especially as applied to drug discovery. In order to accurately study myelination in humans without having to rely on human testing, an engineered in vitro model of myelination could …
The Role Of Notch1, Il-6 And Mir-146a In Inflammation And Infection In Crohn's Disease Non-Responders To Anti-Tnf-Alpha Therapy, Esra'a Keewan
The Role Of Notch1, Il-6 And Mir-146a In Inflammation And Infection In Crohn's Disease Non-Responders To Anti-Tnf-Alpha Therapy, Esra'a Keewan
Electronic Theses and Dissertations, 2020-2023
Despite the extensive research on Notch signaling involvement in inflammation, its role in macrophage response in autoimmune diseases and defense mechanisms against bacterial infection such as Mycobacterium avium paratuberculosis (MAP) remains unknown. In this study, we investigated the molecular role of Notch-1 signaling and its downstream modulation in the macrophage response during infection and disease treatment. We demonstrated that MAP infection significantly upregulated Notch-1 and IL-6, which hijacked myeloid cell leukemia sequence-1 (MCL)-1 dependent inhibition of apoptosis and caused chronic MAP persistence and significantly led to successive inflammation. Blocking Notch signaling with gamma-secretase inhibitor (DAPT) decreased MAP survival and burden, …
Ouroboros: The Evolution From Industrialized Mass Production To Auteurism In American Animation, Heather Knott
Ouroboros: The Evolution From Industrialized Mass Production To Auteurism In American Animation, Heather Knott
Electronic Theses and Dissertations, 2020-2023
The evolution of animation in the United States and its resulting classification varies significantly from its global counterparts. Through a convergence of complex cultural, regulatory, and entrepreneurial influences, the medium's experimental artistic principals have remained firmly rooted in the mass-production style studio pipeline codified by Hollywood. Through the advent of academically centered animation education, the development of the internet, self-distribution, and the growing affordability of industry level hardware and software, the industry has expanded beyond the traditional narrow scope. This re-globalization of entertainment in the United States encourages an auteur approach to animated filmmaking that is challenging the strict association …
Comparing Human And Machine Learning Classification Of Human Factors In Incident Reports From Aviation, Claas Tido Boesser
Comparing Human And Machine Learning Classification Of Human Factors In Incident Reports From Aviation, Claas Tido Boesser
Electronic Theses and Dissertations, 2020-2023
Incident reporting systems are an integral part of any organization seeking to increase the safety of their operation by gathering data on past events, which can then be used to identify ways of mitigating similar events in the future. In order to analyze trends and common issues with regards to the human element in the system, reports are often classified according to a human factors taxonomy. Lately, machine learning algorithms have become popular tools for automated classification of text; however, performance of such algorithms varies and is dependent on several factors. In supervised machine learning tasks such as text classification, …
Space Weathering Simulation Trends On Carbonaceous Chondrites, Andrew Malfavon
Space Weathering Simulation Trends On Carbonaceous Chondrites, Andrew Malfavon
Electronic Theses and Dissertations, 2020-2023
Space weathering on primitive asteroids is an ongoing area of research. Primitive asteroids have low geometric albedo (= 0.15) and mostly featureless visible spectra (~0.5 - 0.9 µm) (Campins et al. 2018). Higher albedo S-type asteroids and their corresponding meteorites, ordinary chondrites, have well-characterized space weathering effects. The generally lower albedo primitive asteroids and their less common corresponding meteorites, carbonaceous chondrites, have shown various, sometimes disagreeing results in laboratory simulations. Experiments simulating solar wind exposure on carbonaceous chondrites by Lantz et al. (2017) and Nakamura et al. 2019 showed complex trends on different types of meteorite samples. Thompson et al. …
Understanding The Socio-Infrastructure Systems During Disaster From Social Media Data, Kamol Chandra Roy
Understanding The Socio-Infrastructure Systems During Disaster From Social Media Data, Kamol Chandra Roy
Electronic Theses and Dissertations, 2020-2023
Our socio-infrastructure systems are becoming more and more vulnerable due to the increased severity and frequency of extreme events every year. Effective disaster management can minimize the damaging impacts of a disaster to a large extent. The ubiquitous use of social media platforms in GPS enabled smartphones offers a unique opportunity to observe, model, and predict human behavior during a disaster. This dissertation explores the opportunity of using social media data and different modeling techniques towards understanding and managing disaster more dynamically. In this dissertation, we focus on four objectives. First, we develop a method to infer individual evacuation behaviors …
Identifying Suicidality Correlates Among People Incarcerated In Jail, Frances Abderhalden
Identifying Suicidality Correlates Among People Incarcerated In Jail, Frances Abderhalden
Electronic Theses and Dissertations, 2020-2023
The rate of suicidality in jail is estimated to be eight times greater than that of the general population, yet the identification of risk factors for suicidality among people incarcerated in jail has not been explored by researchers (Fazel, Grann, Kling & Hawton, 2011; Hayes, 1999; Noonan & Ginder, 2013). To date, the breadth of the literature on suicidology almost exclusively deals with the prison population or general public, and official data of completed suicides. However, when analyzing suicidality in jail and prison populations, it is evident they are not interchangeable and suicidal behaviors include more than just completed suicides. …
The Level Of Creative Thinking Of Stem-Oriented Middle And High School Children Associated With The Level Of Self-Motivated Play And Success Within A Builder Game And Engagement In Builder Gaming Communities' Social Media Culture, John Aedo
Electronic Theses and Dissertations, 2020-2023
Literature indicates that the United States has fallen behind other countries in the world in terms of creativity. At the same, children's self-motivated gaming and involvement in gaming communities have grown as a major pass time. The literature is inconsistent on the relationship between games and creativity with some indicating benefit while others indicate harm. Might the observed level of creative thinking among children be associated with the level of a priori self-motivated engagement with creative games and associated social media? Given the wide spectrum of the kinds of games, this research considers the "builder" (e.g. Minecraft) genre and related …
Mechanotransduction Of Leukocyte Transmigration, Cynthia Aguilar
Mechanotransduction Of Leukocyte Transmigration, Cynthia Aguilar
Electronic Theses and Dissertations, 2020-2023
The endothelium is among the most mechanically enriched environments in the body. It is exposed to a range of hemodynamic-induced and extracellular forces. Of these extracellular forces, the migration of leukocytes through the endothelium will contribute both to classic immune response and development of certain pathologies. While the path of migration across the endothelium will depend on leukocyte and vascular bed type, recent evidence has suggested that the intercellular mechanical microenvironment and forces are also equally as important to this process. Therefore, we present here a model that mimics specific physiological states of a stagnant hemodynamic flow in which we …
Deep Hashing For Image Similarity Search, Ali Al Kobaisi
Deep Hashing For Image Similarity Search, Ali Al Kobaisi
Electronic Theses and Dissertations, 2020-2023
Hashing for similarity search is one of the most widely used methods to solve the approximate nearest neighbor search problem. In this method, one first maps data items from a real valued high-dimensional space to a suitable low dimensional binary code space and then performs the approximate nearest neighbor search in this code space instead. This is beneficial because the search in the code space can be solved more efficiently in terms of runtime complexity and storage consumption. Obviously, for this method to succeed, it is necessary that similar data items be mapped to binary code words that have small …
Analyzing And Detecting Internet Of Things Malware Using Residual Static Graph- And String-Based Artifacts, Hisham Alasmary
Analyzing And Detecting Internet Of Things Malware Using Residual Static Graph- And String-Based Artifacts, Hisham Alasmary
Electronic Theses and Dissertations, 2020-2023
Recently, the Internet of Things (IoT) has become wider and adopted many features from social networks and mainly uses sensing devices technologies, causing a rapid increase in production and adoption. However, security and privacy are serious threats that users usually take precautions to protect their devices and information. Thus, understanding the security shortcomings at first stage will educate IoT users to protect their connected things. Understanding IoT software through analysis, comparison (with other types of malware), and detection (from benign IoT) is an essential problem to mitigate security threats. We focus on two central perspectives, the graph and string representations …
High-Speed Interferometry And Visible Videography For Meniscus Curvature Analysis During Anisotropic Hemiwicking, John Bal
Electronic Theses and Dissertations, 2020-2023
Recent advancements in microelectronics have increased the need for thermal management systems capable of high heat flux dissipation within significant spatial constraints. One method of increasing local heat fluxes is the fabrication of superhydrophilic materials via micro/nanostructuring of the surface. Superhydrophilic surfaces act in a self-pumping capacity, spreading fluid beyond its intrinsic meniscus length to form thin-films, a process known as "hemiwicking", with practical applications in evaporative cooling, as well as flow, pool, and thin-film boiling. Of particular interest is anisotropic hemiwicking via asymmetric microstructuring. The microscopic asymmetricity of the design induces a macroscopically preferred direction of wicking, which has …
Afrofuturism In Animation: Self Identity Of African Americans In Cinematic Storytelling, Dana Barnes
Afrofuturism In Animation: Self Identity Of African Americans In Cinematic Storytelling, Dana Barnes
Electronic Theses and Dissertations, 2020-2023
My work addresses the importance of self-identity within the Black culture of the United States of America through the depiction of an African American boy who must look into himself to overcome a difficult bullying situation. Animation as a medium is an ideal tool for interrogating the Western perspective of identity through cinematic storytelling. Using established animation methods, I created a visual narrative to portray the impact self-identity has on an individual's actions in certain social conditions. The film expands the medium of animation to subvert the narrative expectations of bullying and presents the idea of identity as a nonconforming …
Inquiry As Practice In The Implementation Of A Bachelor Of General Studies Degree In The College Of Undergraduate Studies At The University Of Central Florida, Devon Cadwell Bazata
Inquiry As Practice In The Implementation Of A Bachelor Of General Studies Degree In The College Of Undergraduate Studies At The University Of Central Florida, Devon Cadwell Bazata
Electronic Theses and Dissertations, 2020-2023
Prior to the Fall 2019 implementation of the Bachelor of General Studies (BGS) degree at the University of Central Florida (UCF), the Interdisciplinary Studies (IDS) degree programs were the primary option for students with a range of majors, accumulated credits, and diverse curricular interests. While the IDS degree required students to fulfill requirements in two disciplinary areas of study and a minor, the BGS degree program was introduced to provide students greater flexibility with coursework. The BGS degree was a solution to the complex educational problem of practice presented by the increasing number of undergraduate students with 120+ credit hours …
A Comprehensive Investigation Of Hispanic Student Success In Gateway Stem Courses At Five State Of Florida Institutions, Renee Becker
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 …
Transfunctions And Other Topics In Measure Theory, Jason Bentley
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 …