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An Examination Of Frontline Service Workers' Empathy In A Cobot Team, Emily Anne Broker
An Examination Of Frontline Service Workers' Empathy In A Cobot Team, Emily Anne Broker
Graduate Thesis and Dissertation 2023-2024
Service robots are an emerging technological advancement increasingly utilized in the hospitality industry. In return, service workers are required to use them during their interactions with customers. This study sought to examine how the service robot-worker team affects cognitive and affective empathy present in a service encounter. Using the empathy attribute part of the SERVQUAL model, this study aimed to examine and differentiate the server's empathy impact in the presence of a service robot. This study utilized semi-structured qualitative interviews to collect data from service workers employed in two restaurants characterized by distinct service environments. The interviews were qualitatively analyzed …
Advancing Policy Insights: Opinion Data Analysis And Discourse Structuring Using Llms, Aaditya Bhatia
Advancing Policy Insights: Opinion Data Analysis And Discourse Structuring Using Llms, Aaditya Bhatia
Graduate Thesis and Dissertation 2023-2024
The growing volume of opinion data presents a significant challenge for policymakers striving to distill public sentiment into actionable decisions. This study aims to explore the capability of large language models (LLMs) to synthesize public opinion data into coherent policy recommendations. We specifically leverage Mistral 7B and Mixtral 8x7B models for text generation and have developed an architecture to process vast amounts of unstructured information, integrate diverse viewpoints, and extract actionable insights aligned with public opinion. Using a retrospective data analysis of the Polis platform debates published by the Computational Democracy Project, this study examines multiple datasets that span local …
Optical Seed Development For Yb-Fiber Laser, James G. Brutus
Optical Seed Development For Yb-Fiber Laser, James G. Brutus
Graduate Thesis and Dissertation 2023-2024
Master Oscillator Power Amplifiers (MOPA) are laser systems that utilize a seed and pump amplification system to boost the output power of high-quality lower power seeding signals. MOPAs can generate high gain while avoiding many of the nonlinearities that negatively affect resonance-based lasers that are known to feature higher internal intensities. Additionally, MOPAs provide an easy alternative to the construction of novel laser technologies for higher output power as they can be easily combined with existing laser sources to amplify their output power.
This thesis outlines the design of an ytterbium-doped fiber laser (YDFL), featuring a MOPA architecture. The YDFL …
Critical Discourse Analysis Of The Dialogical Demands Of Florida's 10th Grade B.E.S.T. English Language Arts Standards, Amanda Nb Kaplowitz
Critical Discourse Analysis Of The Dialogical Demands Of Florida's 10th Grade B.E.S.T. English Language Arts Standards, Amanda Nb Kaplowitz
Graduate Thesis and Dissertation 2023-2024
This study investigates the extent to which the Florida B.E.S.T (Benchmark for Excellent Student Thinking) English Language Arts (ELA) standards demand that students participate in dialogic interactions within the 10th grade ELA classroom. Dialogic demands, characterized by active discourse and collaborative sense-making, are the opportunities students interact with one another or with a text. The dialogic elements of classroom pedagogy are an increasingly recognized critical component of effective literacy instruction in contrast with the monologic classroom where teachers are the primary source of information. A Critical Discourse Analysis through the lens of Fairclough is used as this research aims to …
The Role Of Medical Cannabis Use In Pain, Sleep, And Mental Health Outcomes Among Older Adults, Madison H. Maynard
The Role Of Medical Cannabis Use In Pain, Sleep, And Mental Health Outcomes Among Older Adults, Madison H. Maynard
Graduate Thesis and Dissertation 2023-2024
Older adults represent the fastest growing demographic of cannabis users, and they endorse cannabis use for a variety of reasons including modulation of chronic pain, mental health symptoms, and sleep concerns. Despite escalating patterns of use, current evidence leaves questions of efficacy unanswered among these groups of users. Goals of the present study were to examine the role of medicinal cannabis within subjects at the daily level on the interrelated symptoms of depression, anxiety, sleep, and pain. A final sample of 106 medical cannabis users were recruited nationwide, ranging from 55 to 74 years of age (66.67% female, 82.86% white). …
Exploring Service Quality Among Us Hajj Pilgrims In Compliance With Vision 2030 Objectives, Majid Abdulmalik Alshaibi
Exploring Service Quality Among Us Hajj Pilgrims In Compliance With Vision 2030 Objectives, Majid Abdulmalik Alshaibi
Graduate Thesis and Dissertation 2023-2024
Saudi Arabia is progressing with Vision 2030, an ambitious blueprint for economic variation, global connection, and improved quality of life. The Hajj pilgrimage is addressed by the Doyof Al Rahman Program (DARP), one of the vision's programs aiming to enhance the Hajj experience. The Hajj pilgrimage is one of the world's largest annual massive gatherings and it has already received increased attention from researchers combining elements of pilgrimage and tourism. This dissertation aims to explore Hajj service quality and pilgrims' satisfaction. To attain this objective, a narrative and systematic literature review was conducted to develop a framework with standardized …
Rhizophora Mangle (Red Mangrove) Seedling Success In Different Habitats In Mosquito Lagoon, Florida, Usa, Mekail N. Negash
Rhizophora Mangle (Red Mangrove) Seedling Success In Different Habitats In Mosquito Lagoon, Florida, Usa, Mekail N. Negash
Graduate Thesis and Dissertation 2023-2024
Mangroves provide many ecosystem services in coastal environments around the world. These include water quality improvement, creating habitats for terrestrial and aquatic species, and stabilizing shorelines. In central Florida, the red mangrove Rhizophora mangle is a common species in coastal wetlands, and recently the number of individuals successfully recruiting to intertidal oyster reefs has greatly increased, possibly because biogeochemical hot spots are present on oyster reefs due to nutrient-rich biodeposits from the live oysters. To understand how well R. mangle responds in terms of survival and growth to the suite of variables associated within these two unique habitats, I tracked …
Internet-Of-Things Privacy In Wifi Networks: Side-Channel Leakage And Mitigations, Mnassar Alyami
Internet-Of-Things Privacy In Wifi Networks: Side-Channel Leakage And Mitigations, Mnassar Alyami
Graduate Thesis and Dissertation 2023-2024
WiFi networks are susceptible to statistical traffic analysis attacks. Despite encryption, the metadata of encrypted traffic, such as packet inter-arrival time and size, remains visible. This visibility allows potential eavesdroppers to infer private information in the Internet of Things (IoT) environment. For example, it allows for the identification of sleep monitors and the inference of whether a user is awake or asleep.
WiFi eavesdropping theoretically enables the identification of IoT devices without the need to join the victim's network. This attack scenario is more realistic and much harder to defend against, thus posing a real threat to user privacy. However, …
Novel Phase Shifters Using Reconfigurable Filters, Georgiy Brussenskiy
Novel Phase Shifters Using Reconfigurable Filters, Georgiy Brussenskiy
Graduate Thesis and Dissertation 2023-2024
Phase shifters play a crucial role in radar, satellite communications, and 5G networks. Recently, the idea of using filters as phase shifters have attracted much interest due to providing many benefits such as smaller area, lower noise figure, easier fabrication method as compared with other technologies, reduced cost, and the ability to work as multi-functioning device. This work focuses on the implementation of bandstop-based and bandpass-based filtering phase shifters. For the bandstop-based approach, some of the resonating structures that were examined are stubs, LC tanks, L-shaped/U-shaped half wavelength resonators and many others. Periodic stub loading filter design method was compared …
The Effects Of Sexual Assault On Identity And Interpersonal Relationships Among Male And Female Victims, Ishara Jean-Francois
The Effects Of Sexual Assault On Identity And Interpersonal Relationships Among Male And Female Victims, Ishara Jean-Francois
Graduate Thesis and Dissertation 2023-2024
The current study aimed to examine the effect of sexual assault on identity and interpersonal relationships. Although previous studies have examined the connection between sexual assault and interpersonal relationships following assault, there is a lack of research that examines possible gender differences. Further, the effect of sexual assault on identity has been understudied. Male victims are less likely to report their assault for various reasons. Therefore, it is important to focus on this demographic so their stories and experience do not go untold, and they can get the proper help and resources. College students (N= 505) completed an anonymous online …
A Stress Perspective Of Leader-Follower Relationship Ambivalence, Ghada Baz
A Stress Perspective Of Leader-Follower Relationship Ambivalence, Ghada Baz
Graduate Thesis and Dissertation 2023-2024
Ambivalence is the experience of both positive and negative evaluations regarding an object such as a person or an event. Although interest in leadership ambivalence has been growing among researchers, there is still little understanding of what distinguishes it from poor leadership. The goal of this dissertation was to contribute to the leadership ambivalence literature by examining ambivalence in the leader-member exchange (LMX) relationship through the lens of occupational stress. Specifically, I used the job demands-resources model as a theoretical foundation and presented leadership ambivalence as a unique job demand that is associated with emotional exhaustion as a symptom of …
Exploring Hypervigilance Among Trans+ People Navigating Cisgendered Healthcare, Emma M. Tukdarian
Exploring Hypervigilance Among Trans+ People Navigating Cisgendered Healthcare, Emma M. Tukdarian
Graduate Thesis and Dissertation 2023-2024
This thesis uses the limited research on LGBTQ+ specific hypervigilance and queer battle fatigue to explore the prevalence of hypervigilance and fatigue in trans+ medical experiences, even when emotions aren't centered in their narratives, while also using participants' narratives and minority stress theory to suggest changes to the American medical system. Data was taken from a previous study of in-depth interviews on healthcare experiences of 60 trans+ young adults ages 18-24. Analysis of the data was done in NVivo using line-by-line coding for mentions of emotional responses linked to hypervigilance within interview transcripts. Results show that 67% of participants shared …
A Comprehensive And Comparative Examination Of Healthcare Data Breaches: Assessing Security, Privacy, And Performance, Mohammed Al Kinoon
A Comprehensive And Comparative Examination Of Healthcare Data Breaches: Assessing Security, Privacy, And Performance, Mohammed Al Kinoon
Graduate Thesis and Dissertation 2023-2024
The healthcare sector is pivotal, offering life-saving services and enhancing well-being and community life quality, especially with the transition from paper-based to digital electronic health records (EHR). While improving efficiency and patient safety, this digital shift has also made healthcare a prime target for cybercriminals. The sector's sensitive data, including personal identification information, treatment records, and SSNs, are valuable for illegal financial gains. The resultant data breaches, increased by interconnected systems, cyber threats, and insider vulnerabilities, present ongoing and complex challenges. In this dissertation, we tackle a multi-faceted examination of these challenges. We conducted a detailed analysis of healthcare data …
Applications Of Plasmonic Biosensors In Chiral And Achiral Sensing, Aritra Biswas
Applications Of Plasmonic Biosensors In Chiral And Achiral Sensing, Aritra Biswas
Graduate Thesis and Dissertation 2023-2024
Monitoring biological systems is crucial in healthcare, driving the need for reliable and noninvasive solutions. The proliferation of unverified drugs in the market necessitates reliable methods for their detection and identification, especially amidst advancements in pharmaceuticals. Plasmonic biosensors emerge as a great platform for ultra-sensitive detection, identification, and manipulation of biomolecular systems. This dissertation report addresses the critical need for precise detection and monitoring of biomolecules and drugs, presenting innovative solutions through the design of a plasmonic biosensor to tackle challenges in sensitivity, selectivity, and label-free detection and identification. We introduce a robust and tunable, cavity-integrated plasmonic nanopatterned sensor that …
Doubly Rotating Coordinates: Wave Functions In Magnetic Resonance Problems, Sunghyun Kim
Doubly Rotating Coordinates: Wave Functions In Magnetic Resonance Problems, Sunghyun Kim
Graduate Thesis and Dissertation 2023-2024
The nuclear spin response to a rotating field H has been theoretically investigated from the 1930s to the 1950s. Building upon Majorana's probability theory, the behavior of spin 1/2 is well-illustrated in the joint review by Rabi, Ramsey, andSchwinger, and their spin wave function ψ is succinctly restated by Gottfried: ψ(t) = e-iIzωt/ℏe-i[Iz(ω0-ω)+Ixω1]t/ℏψ(0).
However, the complexity involved in evaluating the wave function ψ in terms of probability amplitudes Cm attributed to the noncommutative nature of spin operators [Ix, I …
Github Uncovered: Revealing The Social Fabric Of Software Development Communities, Abduljaleel Al Rubaye
Github Uncovered: Revealing The Social Fabric Of Software Development Communities, Abduljaleel Al Rubaye
Graduate Thesis and Dissertation 2023-2024
The proliferation of open-source software development platforms has given rise to various online social communities where developers can seamlessly collaborate, showcase their projects, and exchange knowledge and ideas. GitHub stands out as a preeminent platform within this ecosystem. It offers developers a space to host and disseminate their code, participate in collaborative ventures, and engage in meaningful dialogues with fellow community members. This dissertation embarks on a comprehensive exploration of various facets of software development communities on GitHub, with a specific focus on innovation diffusion, repository popularity dynamics, code quality enhancement, and user commenting behaviors. This dissertation introduces a popularity-based …
Exploring The Physiology Of Clostridioides Difficile: Selenium-Dependent Catabolism Of Host-Derived Nutrients, Michael A. Johnstone
Exploring The Physiology Of Clostridioides Difficile: Selenium-Dependent Catabolism Of Host-Derived Nutrients, Michael A. Johnstone
Graduate Thesis and Dissertation 2023-2024
Clostridioides difficile is a bacterial pathogen that causes pseudomembranous colitis and the majority of antibiotic-associated diarrheal cases. Broad-spectrum antibiotic usage disrupts the normal gut microbiota and thereby compromises colonization resistance, the main defense against C. difficile infection. Treatment options are limited to vancomycin, fidaxomicin, and the fecal microbiota transplant. Addressing the scarcity of these therapeutics, we documented two explorations in C. difficile drug discovery: (i) evaluation of antibacterial and toxin-suppressing activity of (+)-puupehenone and similar derivatives, and (ii) clarification of a discrepancy in the hypothesized mechanism of auranofin against C. difficile. A better understanding of how C. difficile colonizes …
What Fishing Tackle Should I Bring Today?: Safety Harbor Resource Collection Tools As Adaptations To Aquatic Environments, Richard J. Davis Iii
What Fishing Tackle Should I Bring Today?: Safety Harbor Resource Collection Tools As Adaptations To Aquatic Environments, Richard J. Davis Iii
Graduate Thesis and Dissertation 2023-2024
This thesis reports on the results of research conducted to determine whether technological adaptations to local environmental conditions can be observed through geospatial and artifact analysis of Safety Harbor collections from the Tampa Bay region of Florida. Past artifact and spatial analysis did not take advantage of modern technological advancements when studying how human-environmental interactions can influence certain adaptations to local conditions. In this project, GIS was used to reconstruct local aquatic environmental conditions of waterways adjacent to Safety Harbor sites. New statistical software programs have also proven themselves useful to archaeologists seeking to conduct hypothesis testing of artifact data. …
Human Performance In Context: Exploring The Effect Of Social Support On Vigilance, Allison E. Garibaldi
Human Performance In Context: Exploring The Effect Of Social Support On Vigilance, Allison E. Garibaldi
Graduate Thesis and Dissertation 2023-2024
Over many decades, vigilance research has consistently found that performance on vigilance tasks decline over time (i.e., the vigilance decrement; Davies & Parasuraman, 1982), and that performing a vigilance task is both mentally demanding and stressful (Warm et al., 2008). Researchers have subsequently implemented a wide range of interventions to both understand and attempt to attenuate the vigilance decrement and its associated affective effects. Among these efforts, little attention has been devoted to understanding the effects of the social environment on vigilance. Nonetheless, a handful of studies have indeed suggested that the presence of others can affect performance, workload, and …
Machine Learning Algorithms To Study Multi-Modal Data For Computational Biology, Khandakar Tanvir Ahmed
Machine Learning Algorithms To Study Multi-Modal Data For Computational Biology, Khandakar Tanvir Ahmed
Graduate Thesis and Dissertation 2023-2024
Advancements in high-throughput technologies have led to an exponential increase in the generation of multi-modal data in computational biology. These datasets, comprising diverse biological measurements such as genomics, transcriptomics, proteomics, metabolomics, and imaging data, offer a comprehensive view of biological systems at various levels of complexity. However, integrating and analyzing such heterogeneous data present significant challenges due to differences in data modalities, scales, and noise levels. Another challenge for multi-modal analysis is the complex interaction network that the modalities share. Understanding the intricate interplay between different biological modalities is essential for unraveling the underlying mechanisms of complex biological processes, including …
Dual Frequency Comb Mid-Ir – Thz Spectroscopy, Dmitrii Konnov
Dual Frequency Comb Mid-Ir – Thz Spectroscopy, Dmitrii Konnov
Graduate Thesis and Dissertation 2023-2024
The optical frequency comb is a coherent light source whose spectrum consists of hundreds of thousands perfectly equidistant narrow frequency components and precisely expressed in just two radio frequencies. Even though optical frequency combs were developed 25 years ago, that led to the Nobel Prize in Physics 2005, only recently there was a significant progress in generating broadband optical frequency combs in the mid-infrared. These achievements became possible due to the development of new types of robust fiber and solid-state lasers and the efficient downconverting of their frequencies through different techniques based on advanced nonlinear crystals. In this dissertation, I …
Human Visual Search Performance For Close Range Detection Of Static Targets From Moving Sensor Platforms, Jennifer Hewitt
Human Visual Search Performance For Close Range Detection Of Static Targets From Moving Sensor Platforms, Jennifer Hewitt
Graduate Thesis and Dissertation 2023-2024
Search models based on human perception have been developed by military researchers over the past few decades and have both military and commercial applications for sensor design and implementation. These models are created primarily for static imagery, and accurately predict task performance for systems with stationary targets and stationary sensors, if the observer is given infinite time to make targeting decisions. To account for situations where decisions must be made on a shortened time scale, the time-limited search model was developed to describe how task performance evolves with time. Recent variations of this model have been made to account for …
Next-Generation High-Performance Virtual Reality And Augmented Reality Light Engines, Zhiyong Yang
Next-Generation High-Performance Virtual Reality And Augmented Reality Light Engines, Zhiyong Yang
Graduate Thesis and Dissertation 2023-2024
The immersive virtual reality (VR) and the optical see-through augmented reality (AR) are expected to revolutionize human lives in work, education, entertainment, healthcare, spatial computing, and digital twins, just to name a few. Next-generation VR/AR devices should exhibit a wide field-of-view (FoV), crisp image without screen-door effect, high dynamic range, compact form factor and lightweight, and low power consumption. Such demanding requirements pose a significant challenge to traditional direct-view display panels. To address these technical challenges, novel approaches need to be proposed. This dissertation is devoted to developing next-generation high-performance display light engines toward high resolution density, high optical efficiency, …
Enhancing Scanning Tunneling Microscopy With Automation And Machine Learning, Darian Smalley
Enhancing Scanning Tunneling Microscopy With Automation And Machine Learning, Darian Smalley
Graduate Thesis and Dissertation 2023-2024
The scanning tunneling microscope (STM) is one of the most advanced surface science tools capable of atomic resolution imaging and atomic manipulation. Unfortunately, STM has many time-consuming bottlenecks, like probe conditioning, tip instability, and noise artificing, which causes the technique to have low experimental throughput. This dissertation describes my efforts to address these challenges through automation and machine learning. It consists of two main sections each describing four projects for a total of eight studies.
The first section details two studies on nanoscale sample fabrication and two studies on STM tip preparation. The first two studies describe the fabrication of …
Cultivating Green Public Spaces And Backyard Gardens Amid Covid-19: An Anthropological Study Of Metro-Orlando Gardeners, Chelsea N. Daws
Cultivating Green Public Spaces And Backyard Gardens Amid Covid-19: An Anthropological Study Of Metro-Orlando Gardeners, Chelsea N. Daws
Graduate Thesis and Dissertation 2023-2024
This dissertation critically analyzes home and community gardens within Metro-Orlando by considering the ways that the COVID-19 pandemic impacts residents' garden participation and access to green public spaces. The study utilizes an ethnographic approach to produce informed understandings of participants' experiences within local gardens, alternative food networks, and community supported agriculture analyzed using Marxian theoretical frameworks. Findings are primarily grounded in qualitative information derived from interviews, participant observation, and photovoice. Data were collected both prior to the global COVID-19 outbreak and over subsequent months of lockdown and public health mitigation measures. Primarily focusing on local community garden organizers, community garden …
Florida's Vanishing Heritage: Climate Risk And Adaptation At Florida Heritage Sites, Levi Watson
Florida's Vanishing Heritage: Climate Risk And Adaptation At Florida Heritage Sites, Levi Watson
Electronic Theses and Dissertations, 2020-
This thesis examines history and preservation at coastal cultural heritage sites threatened by climate change and explores climate adaptation strategies at two sites on Florida's Atlantic coast. Current climate change models indicate the planet may see as much as 1.1 meters, or four feet, of global average sea level rise by the year 2100, requiring site managers to intervene by using adaptation techniques to improve resilience and guard against the loss of cultural heritage monuments. Understanding the history and importance of these sites to the surrounding communities and their numerous stakeholders is the first step to ensuring these sites remain …
Flow Induced Vibration In Corrugated Metal Flexhoses, Patrick Tran
Flow Induced Vibration In Corrugated Metal Flexhoses, Patrick Tran
Electronic Theses and Dissertations, 2020-
This study on flow-induced vibration provides valuable insights into the fundamental dynamics of fluid-structure interactions. The findings contribute to the development of predictive models and design guidelines for engineering systems susceptible to flow-induced vibration. By improving our understanding of this phenomenon, engineers can enhance the safety and reliability of various structures subjected to fluid flow, such as pipelines, flexhoses, and bellows. Flowinduced vibration is a phenomenon that occurs when fluid flow interacts with a structure, leading to oscillations and potentially causing mechanical damage. Understanding the underlying mechanisms and predicting the vibration characteristics is crucial for the design and safe operation …
A Study Of The Performance Of Wind Turbines Fitted With Sprayed Liquid Flaps, Alexander Spitzer
A Study Of The Performance Of Wind Turbines Fitted With Sprayed Liquid Flaps, Alexander Spitzer
Electronic Theses and Dissertations, 2020-
Lift generating technologies are often considered a potential solution to increased power generation and reliability within wind turbine design. The Sprayed Liquid Flap (SLF) is a novel active control method that has shown success in providing lift generation on aircraft wings, but its application in the context of rotating flows is unexplored. This research aims to understand the effects of the SLF on a wind turbine and provide a pathway for future exploration of its aerodynamic impacts on rotating flows. Computational Fluid Dynamics with an Euler-Euler multiphase approach is employed to assess the influence of the SLF on a wind …
Theoretical Framework Of Exchange Coupled Tripartite Spin Systems With Magnetic Anisotropy And Predictions Of Spin And Electronic Transport Properties For Their Use In Quantum Architectures, Eric Switzer
Electronic Theses and Dissertations, 2020-
There has been significant interest in spin systems involving two or more coupled spins as a single logical qubit, particularly for scalable quantum computing architectures. Recent realizations include the so-called singlet-triplet qubits and coupled magnetic molecules. An important class of coupled-spin systems, the three-spin paradigm for spin greater than 1/2, has not yet been fully realized in scalable qubit architectures. In this thesis, I develop the theoretical framework to investigate a class of tripartite spin models for realistic systems. First, I model a spin 1/2 particle (e.g., an electron) and two spin 1 particles (in a dimer arrangement) coupled with …
An Examination Of The Role Of Industry 4.0 In Supply Chain Management: Critical Success Factors And A Roadmap, Alper Senol
An Examination Of The Role Of Industry 4.0 In Supply Chain Management: Critical Success Factors And A Roadmap, Alper Senol
Electronic Theses and Dissertations, 2020-
Global supply chain management aims to enhance efficiency and profitability for suppliers, manufacturers, logistics providers, and warehouses. It faces challenges due to the complexity involved. To stay competitive, organizations in the industry are leveraging Industry 4.0 technologies, but some struggle with implementation due to limited expertise. The primary challenge of Global Supply Chain Management now is to integrate Industry 4.0 tools and technologies to maintain high-quality standards and optimized processes. This study focused on identifying the key factors that directly affect the success of integrating Industry 4.0 into the supply chain. It examined both tangible and intangible business resources and …