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Influence Of Body Composition, Velocity Profiles, And Sex-Related Differences On Army Combat Fitness Test Performance, David Boffey
Influence Of Body Composition, Velocity Profiles, And Sex-Related Differences On Army Combat Fitness Test Performance, David Boffey
Electronic Theses and Dissertations, 2020-2023
The Army Combat Fitness Test (ACFT) will become the United States Army's mandatory physical fitness test in March of 2022. The purpose of this study was to determine the relationship between ACFT performance and both body composition and velocity profiles, and to determine sex differences for these variables. Data was collected in November 2020 (Fall) and March 2021 (Spring) from male (n = 55) and female (n = 17) Army Reserve Officers' Training Corps (ROTC) cadets. Body composition was assessed with a bioelectrical impedance spectroscopy (BIS) device, and cadets completed a squat jump (SJ) force-velocity profile (FVP) and a hex …
An Investigation Of Student Mental Health Supports In Florida Public School Districts, Rebecca Carter
An Investigation Of Student Mental Health Supports In Florida Public School Districts, Rebecca Carter
Electronic Theses and Dissertations, 2020-2023
The purpose of this study was to determine the mental health services being provided to students in the state of Florida, specifically the identification of mental health concerns among students, prevention strategies, and interventions utilized. This study consisted of a document analysis of the Mental Health Assistance Allocation Plans submitted to, and posted by, the Florida Department of Education, for the purpose of developing a grounded theory to standardize the recommended practices in serving the mental health needs of students. Standardized recommended practices that emerged from the analysis included (a)universal screening to identify students demonstrating or developing mental health concerns, …
An Exploration Of Campus-Wide Pauses Of Fraternity And Sorority Communities: Utilizing A Four Frame Approach, Corey Esquenazi
An Exploration Of Campus-Wide Pauses Of Fraternity And Sorority Communities: Utilizing A Four Frame Approach, Corey Esquenazi
Electronic Theses and Dissertations, 2020-2023
In recent years universities have tried to address fraternity and sorority drinking and hazing culture by utilizing pauses on fraternity and sorority activity. This study of this phenomena appears to be absent from the extent literature on prevention strategies. The purpose of this multiple case study was to explore the phenomena of campus-wide pauses of fraternity and sorority communities. The two cases examined were at large public research institutions with robust fraternity and sorority communities. Analysis occurred through a process of open coding, theoretical propositions, derived from Bolman and Deals organizational frames and cross case analysis. Data was collected through …
Numerical Modeling Of Shockwave Initiated Combustion Of A Hydrogen-Oxygen Mixture Within A Shock Tube, Reed Forehand
Numerical Modeling Of Shockwave Initiated Combustion Of A Hydrogen-Oxygen Mixture Within A Shock Tube, Reed Forehand
Electronic Theses and Dissertations, 2020-2023
Shock tubes are as close to an ideal reactor as most modern experiments can attain to examine chemical kinetics. As reaction temperatures drop, homogeneous combustion within a shock tube begins to exhibit inhomogeneous modes, which in a typical Hydrogen-Oxygen system are ex- pressed as deflagration to detonation transition. Experimental results of such a system in the Uni- versity of Central Florida's low-pressure shock tube have been collected through end and side-wall imaging to analyze flame structure and chemical kinetics. The purpose of this work is to con- duct a baselining of these results using both chemical and computational fluid dynamics …
An Examination Of Factors Associated With Lgbtq+ College Students' Adoption Of Post-Exposure Prophylaxis (Pep) As An Hiv Prevention Method, Shayna Forgetta
An Examination Of Factors Associated With Lgbtq+ College Students' Adoption Of Post-Exposure Prophylaxis (Pep) As An Hiv Prevention Method, Shayna Forgetta
Electronic Theses and Dissertations, 2020-2023
Post-exposure prophylaxis (PEP) is an effective human immunodeficiency virus (HIV) prevention medication taken after exposure, yet it is not widely used in the lesbian, gay, bisexual, transgender, and queer/questioning (LGBTQ+) community. Understanding its acceptability is vital, given this population's increased risk for contracting HIV. Drawing from the Health Literacy Skills Framework and the Theory of Planned Behavior, this study provides an examination of PEP-related awareness and knowledge, as well as intention to request and use PEP. Using a cross-sectional survey design, a convenience sample of 131 LGBTQ+ college students from a Southeastern university was recruited through email and social media. …
Examining The Experiences Of New Manager Coaches, Theresa Greer
Examining The Experiences Of New Manager Coaches, Theresa Greer
Electronic Theses and Dissertations, 2020-2023
The purpose of this study was to examine new managers' experiences as they transitioned from an individual contributor and coachee to a manager and coach at Blue Sun Corporation (pseudonym). Understanding these experiences was essential to providing appropriate support to help new manager coaches acquire the coaching skills needed to consistently coach and develop their employees. This study's results will guide the design of future new manager training and organizational support initiatives by providing a deeper understanding of new manager coaches' experiences. A phenomenological research design was used for this study because it focused on understanding new manager coaches' experiences …
The Relationship Between College Students' Level Of Alcohol Use And Their Grit, Personal Growth Initiatives, And Emotion Regulation Scores Using Structure Equation Modeling, Gelawdiyos Haile
Electronic Theses and Dissertations, 2020-2023
The purpose of this study was to examine the directional relationship between college students' level of grit, personal growth initiative, cognitive reappraisal emotion regulation strategy, and their level of harmful alcohol consumption and related problems. This study tested the theoretical structure model that college students' (N = 356) level of grit (as measured by the Grit Short Scale [Grit-S; Duckworth & Quinn, 2009]), personal growth initiative (PGI; as measured by the Personal Growth Initiative Scale-II [PGIS-II; Robitschek et al., 2012]), and cognitive reappraisal emotion regulation strategy (as measured by the Emotion Regulation Questionnaire [ERQ; Gross & John, 2003]) contribute to …
Health Literacy, Knowledge, Attitudes, And Opioid Use Behavior Among College Students, Khristen Holmes
Health Literacy, Knowledge, Attitudes, And Opioid Use Behavior Among College Students, Khristen Holmes
Electronic Theses and Dissertations, 2020-2023
Opioid-related deaths have increased rapidly over the last couple of decades due to the overprescribing of prescription opioids and the availability of illicit drugs from family members, friends, or street dealers. To address this crisis, this research will attempt to identify how health literacy levels affect knowledge, attitudes, and behaviors. Hence, this study is informed by the Knowledge-Attitude-Behavior (KAB) Model. The KAB model is used to determine the influence of knowledge and attitudes on behaviors, which includes prescription drugs, illicit drugs, and fentanyl. This dissertation aims to explore the relationships between health literacy, knowledge, attitude, and behavior for opioids (prescription …
Switchable Slot-Ring Antennas For Customizable Phased Array Applications, Junyi Huang
Switchable Slot-Ring Antennas For Customizable Phased Array Applications, Junyi Huang
Electronic Theses and Dissertations, 2020-2023
Switchable-band shared-aperture slot-ring antennas with wide bandwidth and polarization agility are explored in this article for phased array applications. A common antenna aperture can be reconfigured between S-band and C-band arrays using PIN diode switches. A new arraying technique is implemented herein to achieve reconfigurable polarization states. Within each array element, only one port is needed to realize reconfigurable polarization states by providing appropriate phases to each port. Compared with the state of the art, this arrangement can reduce the number of ports of a large phased array by half, therefore significantly reduce the cost and complexity, eliminate the isolation …
On The Strategic Relationship Between Leadership And Innovation In Us Firms, Shabeer Kirmani
On The Strategic Relationship Between Leadership And Innovation In Us Firms, Shabeer Kirmani
Electronic Theses and Dissertations, 2020-2023
Leadership is one of the most important factors in organizational success. Innovation is another of most important factors in organizational success. Leaders play a pivotal role in the innovation capabilities of organizations. One of the most important areas in Leadership Studies (LS) is the association between leadership style and the firm's innovation performance, but a lack of understanding and consensus still remains as a major issue. This research aims to address the research gap by reviewing the empirical literature and determining how the ambidextrous leadership (transactional and transformational) styles in top level U.S. management (CEOs) are related with firm ambidextrous …
Challenges Of Duality: Conflict And Satisfaction In Maintaining Roles As Students And Employees, Jade Laderwarg
Challenges Of Duality: Conflict And Satisfaction In Maintaining Roles As Students And Employees, Jade Laderwarg
Electronic Theses and Dissertations, 2020-2023
Previous research has overlooked university employees' dual working student role as a potential antecedent to altered job perceptions. Therefore, a causal-comparative, quantitative study was conducted to examine how enrollment affects the job satisfaction, role conflict, and role ambiguity of non-instructional university staff. The researcher tested demographic variables, such as age, gender, racial identity, parental status, marital status, and years of service to determine if they moderated the relationship between enrollment and job perception. Among the 811 full-time university staff members who participated, 197 were enrolled as students and 614 were not enrolled. Participants completed the Measure of Job Satisfaction, the …
Understanding Discourse Of Co-Teachers In Middle School Mathematics Inclusive Classrooms, Amanda Lannan
Understanding Discourse Of Co-Teachers In Middle School Mathematics Inclusive Classrooms, Amanda Lannan
Electronic Theses and Dissertations, 2020-2023
The researcher in this study investigated the verbal discourse moves of co-teachers in middle school mathematics classrooms to solicit students' mathematical thinking with a specific focus on students with disabilities. In this examination of two classrooms, students received high-level mathematics instruction from expertly trained co-teachers. A quantitative analysis of the video transcripts using a validated tool for coding teacher behaviors was used to examine the content and context of mathematical discourse in each of the classrooms. The researcher examined qualitative data using a critical discourse framework. Three themes emerged from the discourse analysis: (a) empowerment of co-teachers, (b) strategic use …
Engaging Elementary Preservice Teachers In Reflection For, In, And On Practice During An Approximation Of Practice In Teachlivetm Using Sentence Frames For English Language Learners, Courtney Lopas
Electronic Theses and Dissertations, 2020-2023
The purpose of this study was to explore how a teacher educator (myself) and preservice teachers engaged in joint reflection-for-action, reflection-in-action, and reflection-on-action during an approximation of practice in a TeachLivETM setting using sentence frames to support English Language Learners' (ELLs') writing. Four elementary education preservice teachers participated in this study based on set inclusion criteria. This action research study included video-recorded approximations of practice, the sentence frames preservice teachers submitted in the skill seven module, reflective journaling, and analytic memoing. Instructional sequence analysis through transcription, holistic coding, message units, action units, interaction units, instructional sequences, and phase units were …
Male Students Of Color In Stem Through The Lens Of Intersectionality: A Transformative Mixed-Methods Exploration Of Their Science Identities, Relevant Science Learning Experiences, And Decisions To Pursue Science Professions, Regina Mccurdy
Electronic Theses and Dissertations, 2020-2023
The purpose of this 3-phase transformative mixed-methods study was to use intersectionality theoretical framework to explore the science identities and relevant science learning experiences of male students of color (MSOCs) in STEM and their decisions to pursue science professions after college. Phase 1 utilized a researcher-developed survey to analyze differences in science identity scores (SIS), science relevancy scores (SRS), and decisions to pursue science professions of 702 diverse college students enrolled in STEM-related courses at a state college in Southeast United States. While there were no statistically significant differences in SIS and SRS scores regarding race/ethnicity or socioeconomic factors, statistical …
An Examination Of Secondary English Language Arts And Social Studies Teachers' Perceptions And Implementation Of Effective Literacy Instruction Practices In Their Content Area Classrooms: A Correlation Study, Melissa Mitchell
Electronic Theses and Dissertations, 2020-2023
According to national assessments of student performance, struggling readers in secondary grades continue to struggle, specifically in the areas of vocabulary development and reading comprehension. As a result, the identified students struggle with content area learning. It is important to examine content area teachers' perspectives and instructional needs about the role of reading/literacy in their content area. This study uses a correlational research design, consisting primarily of collection and analysis of inventory data, collected from 74 secondary English Language Arts (ELA) and Social Studies teachers in grades 6-12. The use of correlational design was selected to examine possible relationships between …
Highly Sensitive Child Scale For Preschool Age Children: Development, Initial Validation Of A New Instrument, Bethany Russell
Highly Sensitive Child Scale For Preschool Age Children: Development, Initial Validation Of A New Instrument, Bethany Russell
Electronic Theses and Dissertations, 2020-2023
The health of the caregiver-child relationship is imperative for positive long-term mental health outcomes in children and is dependent on caregivers' understanding of their child's behaviors. Misunderstanding a child's behaviors prevents caregivers from responding to their child in a nurturing manner, which creates disconnection in the caregiver-child relationship. Unfortunately, children with sensory processing sensitivity are particularly likely to experience such misunderstanding in their relationships with caregivers. Sensory processing sensitivity (SPS) is a temperament trait manifesting in stronger neurological and emotional responses to stimuli. To increase understanding of children's needs through proper discovery of SPS, the researcher developed the Highly Sensitive …
The Effect Of Dynamic Span Wise Bending On The Forces Of A Pitching Flat Plate, Manoj Prabakar Sargunaraj
The Effect Of Dynamic Span Wise Bending On The Forces Of A Pitching Flat Plate, Manoj Prabakar Sargunaraj
Electronic Theses and Dissertations, 2020-2023
A novel experiment has been conducted to investigate the effect of dynamic spanwise bending on the formation of a dynamic stall vortex on a rapidly pitching flat plate. Experiments have been performed in a towing tank at different nondimensional pitch rates (Kp) in the range of 0.4112 < Kp < 0.8225, and four maximum pitch angles (30° , 45°, 60°, and 90°) at a Reynolds number of 12,000. Synchronized direct force measurements and particle image velocimetry (PIV) are used to characterize the effect of bending on the unsteady forces and the flow field. An unsteady analytical model based on the bending and pitching kinematics is used to model the lift force histories. It is found that a spanwise bending of a pitching wing alleviated the unsteady lift forces. However, the main contribution was found to come from the non-circulatory forces. The circulation and pressure analysis of the pitching wing revealed little or no sensitivity to the wing bending motions examined.
Energy-Efficient In-Memory Architectures Leveraging Intrinsic Behaviors Of Embedded Mram Devices, Shadi Sheikhfaal
Energy-Efficient In-Memory Architectures Leveraging Intrinsic Behaviors Of Embedded Mram Devices, Shadi Sheikhfaal
Electronic Theses and Dissertations, 2020-2023
For decades, innovations to surmount the processor versus memory gap and move beyond conventional von Neumann architectures continue to be sought and explored. Recent machine learning models still expend orders of magnitude more time and energy to access data in memory in addition to merely performing the computation itself. This phenomenon referred to as a memory-wall bottleneck, is addressed herein via a completely fresh perspective on logic and memory technology design. The specific solutions developed in this dissertation focus on utilizing intrinsic switching behaviors of embedded MRAM devices to design cross-layer and energy-efficient Compute-in-Memory (CiM) architectures, accelerate the computationally-intensive operations …
Using Wearable Assistive Technology To Improve Time Management Of Students With Disabilities In A School-Based Employment Training Setting, Jonathan Solomon
Using Wearable Assistive Technology To Improve Time Management Of Students With Disabilities In A School-Based Employment Training Setting, Jonathan Solomon
Electronic Theses and Dissertations, 2020-2023
All areas of life require time management, but those skills are especially integral and require a different level of accountability for an individual to be successful in academia or when employed (DiPipi-Hoy et al., 2009; Macan et al., 1990). A study by Janeslätt et al. (2015) measured daily time management of adults and found individuals with cognitive disabilities possessed low daily time management skills compared to neurotypical peers. In a study by Button et al. (2019) the majority of college students with disabilities at one university who sought out support services spent most of their time working on the area …
A Causal Comparative Examination Of The Effects Of Tiered Interventions Within The Mtss Framework In One Intermediate Grade, Hope Strange
A Causal Comparative Examination Of The Effects Of Tiered Interventions Within The Mtss Framework In One Intermediate Grade, Hope Strange
Electronic Theses and Dissertations, 2020-2023
This post hoc quantitative research used a causal-comparative design to explore the relationship between tiered interventions as part of an MTSS intervention and student achievement. Data from the Florida Standards Assessment for English Language Arts (FSA ELA) and mathematics (FSA Mathematics) from 2018 and 2019 formed the basis of the study; student demographic data also identified each student's highest level of reading, mathematics, and behavior interventions during the 2018-2019 school year. Students who received interventions were coded into a separate higher tier. Percentile change was calculated and analyzed using an ANOVA to determine how percentile change differed by intervention tier. …
Examining The Lived Experiences Of Secondary Teachers Using Visuals And Leveled Texts With English Learners At Various Levels Of Language Acquisition, Jasmine Taylor
Electronic Theses and Dissertations, 2020-2023
The purpose of this qualitative, phenomenological Dissertation in Practice was to understand teachers' experience with the creation and use of visuals and leveled texts, written at various English proficiency levels, with English learners (ELs) in English II classrooms at a large high school in Central Florida. The need to examine teachers' experience with these scaffolds arose from the disparity between academic achievement rates of ELs and non-ELs as measured by the Florida Standards Assessment (FSA). This complex problem can be addressed from a multitude of perspectives, and this Dissertation in Practice sought to examine specific practical scaffolds that mainstream English …
Classification Of Ground-Truth Fire Debris Samples Using Neural Networks, Nicholas Thurn
Classification Of Ground-Truth Fire Debris Samples Using Neural Networks, Nicholas Thurn
Electronic Theses and Dissertations, 2020-2023
Fire debris samples are currently analyzed according to ASTM E1618-19, which is the "Standard Test Method for Ignitable Liquid Residues in Extracts from Fire Debris Samples by Gas Chromatography-Mass Spectrometry." This method requires that an analyst make a visual comparison to an appropriate reference sample using the total ion and the extracted ion chromatograms. The analyst then provides an opinion about whether an ignitable liquid residue is present in the sample. The method is inherently subjective due to the visual interpretation that is needed. In order to automate this process, this work uses neural networks and a subset of the …
High-Density Neurochemical Microelectrode Array To Monitor Neurotransmitter Secretion, Kevin White
High-Density Neurochemical Microelectrode Array To Monitor Neurotransmitter Secretion, Kevin White
Electronic Theses and Dissertations, 2020-2023
Neuronal exocytosis facilitates the propagation of information through the nervous system pertaining to bodily function, memory, and emotions. Using amperometry, an electrochemical technique that directly detects electroactive molecules, the sub-millisecond dynamics of exocytosis are revealed and the modulation of neurotransmitter secretion due to neurodegenerative diseases or pharmacological treatments can be studied. The method of detection using amperometry is the exchange of electrons due to a redox reaction at an electrochemically sensitive electrode. As electroactive molecules, such as dopamine, undergo oxidation, electrons are released from the molecule to the electrode and an oxidation current is generated and recorded. Despite the significance …
Incinerator Ash Characterization - Implications For Elevated Temperature Landfills, Angel Villarruel-Moore
Incinerator Ash Characterization - Implications For Elevated Temperature Landfills, Angel Villarruel-Moore
Electronic Theses and Dissertations, 2020-2023
The occurrence of temperatures in municipal solid waste (MSW) landfill gas (LFG) extraction systems in excess of 55°C is a problem that has gained much attention in the solid waste industry, both domestically and globally. Facilities which frequently experience such temperatures are termed Elevated Temperature Landfills (ETLFs), and recent research conducted at the University of Central Florida (UCF) has provided strong evidence that ash, both MSW incinerator ash (MSWIA) and coal combustion ash (CCA), when co-disposed with unburned MSW, provides materials which are able to participate in abiotic exothermic reactions that may lead to the development or sustainment of ETLFs. …
Using Geographic Information Systems To Analyze The Effects Of Residential Location On Student Academic Success, Courtney Wilson
Using Geographic Information Systems To Analyze The Effects Of Residential Location On Student Academic Success, Courtney Wilson
Electronic Theses and Dissertations, 2020-2023
Purpose: This study aims to assess the impact of social disorganization indicators (i.e., employment, median-household income, owner-occupied housing, crime, poverty, and minority percentage) on academic performance (i.e., GPA) for 6th and 7th-grade students attending seven K-8 designated Orange County Public Schools (OCPS) in central Florida. Methods: A hot spot cluster analysis was used to identify areas where high and low GPA clustering occurs based on the individual block level GPA data obtained from OCPS. Visual map comparison of cluster results and social disorganization indicators were used to understand if high GPA cluster outcomes occur in areas of social disorganization. Moreover, …
Reliability And Failure Analysis Of Gan-On-Si Power Devices, Wen Yang
Reliability And Failure Analysis Of Gan-On-Si Power Devices, Wen Yang
Electronic Theses and Dissertations, 2020-2023
Wide bandgap power semiconductor devices, especially Gallium Nitride (GaN) high electron mobility transistors (HEMTs), have gained a lot of attention for high power applications due to their low on-resistance and high switching speed compared to their silicon counterparts. However, the reliability and failure issues related to dynamic performance, gate reliability, and electrostatic discharge have limited the wide applications of GaN power devices. This dissertation presents a systematic study of reliability and failure analysis of GaN-on-Si power devices. Firstly, the correlation between the physical trap mechanisms and the dynamic on-resistance (Ron) degradation has been investigated using a multi-frequency C-V measurement during …
Paleoethnobotanical Analysis Of Maya Ceramic Residues From Holtun, Guatemala, Kimberly Batres
Paleoethnobotanical Analysis Of Maya Ceramic Residues From Holtun, Guatemala, Kimberly Batres
Electronic Theses and Dissertations, 2020-2023
To the Maya, plant-based foods were not just important for sustenance but also had ritual meaning that was especially emphasized when placed in graves and caches. Food offered during ritual performances created a reciprocal relationship between living individuals, their ancestors, and the gods. The following thesis examines seven ceramic sherds associated with burial and cache offerings of individuals from the lowland Maya site of Holtun, Guatemala, that were found to have contained food offerings. Starch analysis, a method used to determine plant taxa on a microscopic level was performed on the ceramic vessels along with various experimental molecular spectroscopic procedures. …
Cognitive Rehearsal, Self-Efficacy, And Workplace Incivility Among Baccalaureate Nursing Students, Alina Diaz-Cruz
Cognitive Rehearsal, Self-Efficacy, And Workplace Incivility Among Baccalaureate Nursing Students, Alina Diaz-Cruz
Electronic Theses and Dissertations, 2020-2023
Workplace incivility is a widespread problem in the clinical work environment that affects present and future generations of nurses. The purpose of this study was to determine if a cognitive rehearsal intervention (i.e., TeamSTEPPS® DESC script) would increase senior nursing students' self-efficacy, decrease workplace incivility experienced in the clinical work environment, and if nursing students' pre-intervention self-efficacy level would be indirectly associated with post-intervention workplace incivility. A quasi-experimental, one-group pretest-posttest study was used to measure the effect of a cognitive rehearsal intervention on nursing students' self-efficacy levels and workplace incivility experienced in their clinical rotation at an acute care center. …
College Students With Autism Spectrum Disorder Enrolled In Stem Disciplines And Their Experiences With Support Systems: A Qualitative Exploration, Michelle Howell
College Students With Autism Spectrum Disorder Enrolled In Stem Disciplines And Their Experiences With Support Systems: A Qualitative Exploration, Michelle Howell
Electronic Theses and Dissertations, 2020-2023
As the number of individuals diagnosed with Autism Spectrum Disorder (ASD) increases, the number of those individuals graduating from high school with the goal of pursuing postsecondary education also increases. For those students with ASD interested in pursuing higher education, Wei et al. (2013) found that they have a propensity to pursue STEM disciplines. The purpose of this qualitative inquiry was to explore the ways students with ASD pursuing STEM disciplines described their experiences with support before and during college. Using Schlossberg's (1984) 4S Transition Model as a framework, the researcher conducted interviews with ten students to explore the challenges …
A Holistic Approach For Power Systems Using Machine Learning And System Dynamics, Bibi Ibrahim
A Holistic Approach For Power Systems Using Machine Learning And System Dynamics, Bibi Ibrahim
Electronic Theses and Dissertations, 2020-2023
The growing digital economy has imposed greater demand on the electricity supply's reliability in the past decades, with more consumers and electric vehicles (EV) becoming connected to the electric grid. While the uncertainty of the outcomes is unavoidable, there is a need for more accurate forecasts, modeling tools, and detailed roadmaps that can support the reliable transitioning of power systems. Predicting the electricity demand growth will allow energy managers to understand consumer demand in the near future better. However, there are challenges for forecasting the peak demand growth since it is very difficult to model the various complex features that …