Digital Commons Network^™

Vehicle-To-Vehicle (V2v) And Vehicle-To-Infrastructure (V2i) Based Intersection Movement Assist, Lane Change Assist, And Rear Traffic Jam Formation Safety Applications, Gustavo Olenscki

USF Tampa Graduate Theses and Dissertations

Vehicle-to-Vehicle (V2V) technology can be implemented in many different ways in terms of communication protocols. Utilizing Dedicated Short-Range Communication (DSRC) in the implementation of V2V, or even Vehicle-to-Everything (V2X), may prove to be extremely effective in solving issues related to transit safety as well as traffic flow. Forward Collision Warning (FCW), Slow Moving Vehicle (SMV), and Lane Keep Assist (LKA) are some examples of V2V safety applications whereas Platoonig may be considered to focus on improving traffic flow and fuel efficiency. Vehicles can be equipped with inexpensive embedded devices known as on-board units (OBUs) which offers the capability of data …

Multimodal Assessment Of Human Behavior With Applications In Analysis Of Autism Spectrum Disorder, Sk Rahatul Jannat

USF Tampa Graduate Theses and Dissertations

Human behavior analysis is an important application area of artificial intelligence. Usingdata collected from sensors (e.g., cameras), human behavior including, but not limited to, emotions, expressions, body movement, and eye gaze are analyzed. This analysis is useful in applications in diverse fields ranging from healthcare, defense, education, and marketing. Considering this, in this dissertation, we have proposed new approaches to emotion and expression recognition, subject identification, and classification of autism spectrum disorder. More specifically, this dissertation has the following contributions: 1) A new approach for multimodal ubiquitous emotion recognition is proposed; 2) Investigation into the impact of large expression variations …

Flow Generation And Propagation From Headwater Wetlands To Downstream Waters, Leanne Marie Stepchinski

USF Tampa Graduate Theses and Dissertations

Headwater wetlands are connected to one another and to downstream waters by dynamic hydrologic flowpaths, functioning as integrated hydrologic networks at the watershed scale. Headwater wetlands perform a variety of hydrologic lag, sink, and source functions, including flow generation and propagation, thereby contributing to the natural flow regimes of downgradient waters. The functions of individual wetlands and their contributions to hydrologic connectivity and subsequently to the natural flow regime have been widely studied and are well understood. Comparatively, the functions and hydrologic connectivity within wetland complexes as a whole and their collective subsequent contributions to the natural flow regime of …

Secure Lightweight Cryptographic Hardware Constructions For Deeply Embedded Systems, Jasmin Kaur

USF Tampa Graduate Theses and Dissertations

Lightweight cryptography plays a vital role in securing resource-constrained deeply-embedded systems such as implantable and wearable medical devices, smart fabrics, smart homes, radio frequency identification tags, sensor networks, and privacy-constrained usage models. The National Institute of Standards and Technology (NIST) initiated a standardization process for lightweight cryptography, a relatively-long multi-year effort, which eventually concluded in February 2023. Side-channel attacks (SCAs) exploit the vulnerabilities of a system by observing and analyzing side-channel information leakages. Fault analysis attacks are a type of active SCAs, where an intelligent adversary injects bit/byte faults into the implementation of a cryptographic cipher to recover the secret …

Case Study And Fidelity Assessment Development For The Family Intervention Specialist (Fis) Program, Areana Cruz

USF Tampa Graduate Theses and Dissertations

This dissertation involved an in-depth analysis of the Family Intervention Specialist (FIS) program and the development of an FIS fidelity assessment. Three studies were conducted for this analysis. Study one analyzed FIS administrative data from one Managing Entity to determine the extent that the quality assurance measures align with the core program policies and procedures established by the Department of Children and Families. Study two included a content analysis of FIS policies and procedures manuals for alignment regarding implementation practices and qualitative interviews with FIS stakeholders regarding FIS implementation, strengths, challenges, and adherence to established policies and procedures. Study three …

Supervision Needs At 2 And 5 Years Post Traumatic Brain Injury: A Veterans Affairs Tbi Model Systems Study, Deveney M. K. Ching

USF Tampa Graduate Theses and Dissertations

The present study assessed the supervision needs, with the Supervision Rating Scale [SRS] (Boake, 1996) of Veterans and Service Members enrolled in the Veterans' Affairs (VA) Traumatic Brain Injury Model System (TBIMS) at 2- and 5-year follow-ups after moderate to severe traumatic brain injury (TBI). A cross sectional analysis was conducted at 2-year follow-up (N=428) where it was found that 35% of subjects still needed supervision. At 5-year follow-up (N=295) it was found that 32% of subjects needed supervision. Finally, a multilevel model of supervision (N=164) found that the relationship of supervision needs remains a constant linear line over the …

Detection Of Subsidence In West-Central Florida Using Persistent Scatterer Interferometry And Near-Surface Geophysics, Tonian R. Robinson

USF Tampa Graduate Theses and Dissertations

This dissertation consists of three studies that employ Persistent Scatterer Interferometry (PSI, also known as PSInSAR) to better understand how subsidence in west-central Florida relates to underlying geological processes. In the first study, near-surface geophysical methods (Ground Penetrating Radar (GPR) and Electrical Resistivity (ERT)), terrestrial remote sensing applications (Light Detection and Ranging (LiDAR) and Structure from Motion (SfM)), and PSI were used to monitor the spatial and temporal behaviors of a suspected growing sinkhole in the Sandhill Boyscout Reservation, Hernando County, Florida. The survey area was located within and around a topographic low assumed to be the surface of the …

Enhancing The Safety And Reliability Of Closed-Loop Medical Control Systems, Shakil Mahmud

USF Tampa Graduate Theses and Dissertations

The Internet of Medical Things (IoMT) is a rapidly advancing field that relies heavily on semi- or closed-loop Wearable and Implantable Medical Devices (WIMDs). In recent years, there has been renewed interest in clinical automation, with researchers looking for innovative solutions for Physiological Closed-Loop Control Systems (PCLCS). However, these devices can have various security issues, including vulnerabilities in software and firmware, physical attacks, weak encryption/authentication, and compromised system components. Government agencies, including the US Food and Drug Administration (FDA) and European Medicines Agency (EMA), emphasize the importance of ensuring the safety and reliability of PCLCS since malfunctioning medical devices can …

Counting Every Death When Every Death Counts: A Mixed-Methods Study Of Hurricane Michael Excess Mortality, Blake L. Scott

USF Tampa Graduate Theses and Dissertations

Vulnerable populations have been shown to be disproportionately impacted by natural disasters, such as hurricanes. Hurricane Michael, a Category 5 storm, in October of 2018 hit the rural and socioeconomically vulnerable area of the Florida Panhandle, causing 50 fatalities in Florida, massive destruction to area including the healthcare infrastructure, and led a prolonged recovery period. The purpose of the research was to examine long-term impacts to health in Florida Panhandle after Hurricane Michael; changes to mortality trends, changes to health of survivors, and changes to their access to health care using a mixed-methods, sequential, explanatory study design.

The initial phase …

The Relationship Between First-Year Expectations And Persistence For Students Who Self-Identify As Having Not Declared A Major, Shane Combs

USF Tampa Graduate Theses and Dissertations

This research aligned with protocols established by the Florida Board of Governors in 2016 to form a new funding model tied to the institution's performance. The literature review highlighted a disparity between students' expectations and the reality of college which could negatively impact persistence, and therefore funding to the institution. This quantitative study utilized the Beginning of College Survey of Student Engagement (BCSSE) to explore the correlation between incoming, undeclared FTIC students' expectations of co-curricular involvement, faculty interaction, and learning support services utilization and their persistence to the end of the second fall semester. The sample consisted of 1,042 respondents …

Visualizing Empire: Advancing Roman Archaeology In Sicily And Malta Through 3d Digitization And Spatial Technologies, Stephan N. Hassam

USF Tampa Graduate Theses and Dissertations

This dissertation addresses the negative effects of data fragmentation and heterogeneity on the Roman archaeology of Malta and Sicily. Roman period villas in Sicily and Roman period ceramics in Malta have both been marginalized within scholarship on Roman archaeology due to historical processes, bureaucratic organizations, and different academic trajectories and cultures. Digital technologies, especially 3D digitization and spatial information are well poised to address the fragmentation of these two contexts from wider discussions on the Roman Mediterranean. The dissertation introduces two long term projects, the E-unification of the De Piro Collection (EDPC) and the Digital Atlas of Roman Sicily – …

A Novel Jazz Music Curriculum For Young Children: Results Of A Pilot Study, Jazmin D. Ghent

USF Tampa Graduate Theses and Dissertations

Jazz improvisation is known as the highest-known art form concerning improvisation due to its frequency and development of creative ideas (Feldman 1964). Research shows that the art of spontaneous creation can contribute to children’s ability to problem-solve, social and emotional well-being, and academic success into adulthood (Biasutti, 2017; Heble & Laver, 2016; Kiehn, 2003; Kuzmich, 1980; Solis, 2009). Improvisation is crucial for developmentally comprehensive music programs; however, improvisation is scarce in elementary music classrooms and curricula. For this pilot study, a group of 31 children aged 5-8 and considered at-risk participated in a study where they were randomly assigned to …

Organizing And Communicating Health: A Culture-Centered And Necrocapitalist Inquiry Of Groundwater Contamination In Rural West Bengal, Parameswari Mukherjee

USF Tampa Graduate Theses and Dissertations

As a discursive point of praxis, this dissertation project seeks to record knowledge from below around the overlaps between health, water and health interventions emerging from rural communities located in North 24 Parganas and Purulia in West Bengal that are disproportionately impacted by water-insecurity. My dissertation also documents how multiple-stakeholders such as local NGOs, international NGOs, non-profits, and donor agencies organize access to safe water and health interventions for the water-insecure communities located in North 24 Parganas and Purulia. The integration of the CCA and necrocapitalism afford theoretical and methodological guidance in this dissertation to help document the localocentric stories …

The Relationships Between L1, Writing Quality, And Complexity, Accuracy, And Fluency In L2 Writing, Tuc C. Chau

USF Tampa Graduate Theses and Dissertations

The purpose of the current dissertation is to map the relationships between first language (L1), writing quality, and syntactic complexity, accuracy, lexical complexity, and fluency (CALF) in second language (L2) writing. CALF are characteristics of language production that have been of significant interest in L2 writing research for the past few decades. Though they have been extensively studied as dependent variables that may vary as a function of other factors, they have been rarely studied together, much less in relation to L1 as an independent variable. Thus, this study explored the effects of L1 and writing quality, operationalized as score …

Examining Patient Satisfaction And Treatment Effectiveness For Hispanic Adolescents Receiving Intensive Mental Health Services For Depression, Myesha M. Morgan

USF Tampa Graduate Theses and Dissertations

Behavioral Activation (BA) is a treatment approach that has demonstrated promising outcomes for the adolescent population (Martin & Oliver, 2019). However, more studies are needed to examine its effectiveness with Hispanic adolescents. The prevalence and severity of depressive symptoms tend to be higher among Hispanic adolescents in comparison to their non-Hispanic White peers (Pratt & Brody, 2014). In addition, depressive symptoms are associated with poor social, academic, and later health outcomes (Naicker et al., 2013; Owens, Stevenson, Hadwin, 2012). Given the lack of prior investigations on the effectiveness of BA for Hispanic adolescents, this study aimed to fill a gap …

A Culturally Responsive And Sustaining Pre-School: Collaborative Approaches To Curriculum In An Underserved Florida Community, Dana R. Roberts

USF Tampa Graduate Theses and Dissertations

The early childhood education and childcare (ECE&C) sector in America “is a textbook example of a broken market” (Yellen, 2021) that operates as a “non-system” (Berlin, 2021). This manifests itself through the low-quality of its teaching cadre (Cassidy et al., 2019). This failure hits disadvantage families hardest (Chafouleas et al., 2016) - a reality that is particularly apparent in St. Petersburg, Florida’s Midtown neighborhoods where one out of every two children attending ECE programs are not meeting State school readiness standards (Florida OEL, 2020). In this study, I propose a culturally-responsive (Gay, 2018), culturally sustaining (Ladson-Billings, 2021c), and equity-based continuous …

Characterization And Implementation Of An All-In-One Heating, Impedance, And Pulsing Device For Molecular Delivery Applications, Alex Otten

USF Tampa Graduate Theses and Dissertations

Cancer impacts millions of Americans every year, with an estimated 1.9 million new cases and 600,000 deaths predicted to occur in 2023 [1]. Medical professionals and scientists have developed several techniques and procedures to combat this disease including gene therapies, surgeries, and chemotherapies. Several of these techniques incorporate the use of pulsed electric fields to deliver molecular material to treat, or directly destroy, the cells of the tumor. These pulsed electric field techniques are known as gene electrotransfer, electrochemotherapy, and irreversible electroporation. All three techniques utilize different electrical parameters to achieve their target tumor reduction or expression goals. Efforts to …

Exploring Novel Two Dimensional Diluted Magnetic Semiconductors And Heterostructures For Spintronics Applications, Thi Hai Yen Pham

USF Tampa Graduate Theses and Dissertations

Atomically thin transition metal dichalcogenide (TMD) semiconductors hold enormous potential for modern optoelectronic devices, magnetic sensing, and quantum communications. Long-range ferromagnetism can be induced in TMD monolayers by introducing a small amount of magnetic dopants to form diluted magnetic semiconductors (DMSs), making them promising candidates for applications in ultralow-power and ultracompact spintronic nanodevices. This dissertation research aims to address two contemporary challenges in the fields of nano-magnetism and spintronics: controllability of magnetic dopants in TMD monolayers in the form of MX2 (M = W, Mo; X = S, Se) and understanding the fundamental physical mechanisms that give rise to magnetism …

“So, I Am Back”: Adjudicated Youths’ School Reentry Experiences, Inita S. Knox

USF Tampa Graduate Theses and Dissertations

Adjudicated youth face a multitude of barriers when reentering school following incarceration. School administrators and educational personnel know very little about how these students perceive their reentry experiences and what the students identify as needed supports, resources, and barriers throughout the process. This qualitative study used in-depth, semi-structured interviews with photo-elicitation to explore and describe how formerly incarcerated youth perceive their high school reentry experiences. Participants were male adolescents ages 16 to 18 years old. who provided rich and in-depth descriptions of their reentry experiences. Recommendations for policy, practice and future research are provided.

Development And Initial Evaluation Of A Mental Health Training For Pre-Service Teachers, Alexis M. Sánchez

USF Tampa Graduate Theses and Dissertations

This study aimed to examine the initial pre-service teacher outcomes for a newly developed mental health training (i.e., Training In Mental health for Educators - Pre-service Teachers [TIME-PT]). For the development of the TIME-PT, an expert panel and a focus group with pre-service teachers were conducted to inform of any changes and improvements needed in the content of the training. In the initial evaluation of the TIME-PT, the training’s factors of professional development were considered, including the training’s understanding and feasibility, participants’ willingness to change, their use of school-family collaboration, and their use of external supports. Initial evaluations of participants’ …

Saudi Teachers' Perceptions Of Accommodating Diverse Students, Including Those With Special Needs, In Inclusive Classrooms, Ahmed Ali Alqahtani

USF Tampa Graduate Theses and Dissertations

General education in Saudi Arabia has undergone significant transformations since the adoption of full inclusion in schools, resulting in an increase in the number of students with special needs integrated into general education classrooms. The goal of this policy change was to boost inclusivity in Saudi education, but questions have been raised regarding the preparedness of general education teachers to effectively meet the increasingly diverse needs of their students. This study explores Saudi general education teachers' understanding of inclusive practices, their perspectives on the impact of inclusivity on student learning outcomes, and their perceptions of their own preparedness to implement …

Advances In Multiagent Systems Control: Multiplex Information Networks-Based Approaches And Beyond, Kimberly Witke

USF Tampa Graduate Theses and Dissertations

Multiagent systems control designs offer numerous advantages to increasingly complex civilian, military, and scientific tasks ranging from intelligent satellite swarm controls or autonomous traffic controls to remote triage and repair or remote wildlife observation, where the performance of a single agent is insufficient to execute the task at hand. Traditional methods in multiagent systems controls, however, have been infeasible for use in scalable, large-group formation controls.

With this in mind, the contribution of this dissertation is to bridge the gap in knowledge through both theoretical and experimental validation of multiagent systems control architectures. It addresses the challenges presented by unreliable, …

Deep Learning Enhancement And Privacy-Preserving Deep Learning: A Data-Centric Approach, Hung S. Nguyen

USF Tampa Graduate Theses and Dissertations

Deep Learning and its applications have become attractive to a lot of research recentlybecause of its capability to capture important information from large amounts of data. While most of the work focuses on finding the best model parameters, improving machine learning performance from data perspective still needs more attention. In this work, we propose techniques to enhance the robustness of deep learning classification by tackling data issue. Specifically, our data processing proposals aim to alleviate the impacts of class-imbalanced data and non- IID data in deep learning classification and federated learning scenarios. In addition, data pre-processing strategies such that dimensionality …

Fabric-Based Organic Electrochemical Transistor Towards Wearable Ph Sensing Electronics, Nestor Osvaldo Marquez Rios

USF Tampa Graduate Theses and Dissertations

Wearable electronics interest has attracted the attention of a few sectors because of their applicability in different areas like healthcare, military, and our daily basis. Still building circuits on fabrics to make these wearable electronics is challenging. As transistors are the building blocks of electronic circuits and most of the biosensors, recently, fiber-shaped electrochemical transistors have been studied extensively for a lot of applications including bioelectronics. Fiber-based devices are getting popular in different applications due to their low fabrication cost, lightweight, and flexibility without losing their properties. Additionally, they are potentially suitable for making sensors on garments.

In this work, …

Analysis Of Ostds Failure Potential Due To Sea-Level Rise And Other Inundation Factors: An Integrated Geo-Spatial Analysis, Alec Colarusso

USF Tampa Graduate Theses and Dissertations

While many aspects of climate change are well-studied, the vulnerability of Onsite Sewage Treatment and Disposal Systems (OSTDS) to sea-level rise (SLR) has not been thoroughly examined despite the potentially significant environmental impacts, including nutrient and pathogen loading. Research gaps include the need to determine the suitability of models to predict groundwater inundation due to SLR and the consequent impact on OSTDS. As such, this study aims to compare Bathtub/hydrostatic and physics-based/MODFLOW/3D numerical modeling methods of simulating groundwater inundation from SLR to identify OSTDS vulnerability to failure due to a reduction in the height of the vadose zone (saturation or …

Evaluation Of The Humoral Immune Responses To Plasmodium Vivax Circumsporozoite Protein (Csp)-Based Pre-Erythrocytic Vaccine Candidates, Jack Esquenazi

USF Tampa Graduate Theses and Dissertations

Malaria, caused by the apicomplexan Plasmodium spp. , is a major public health issue that impacts over one-third of the world’s population ,with Plasmodium vivax accounting for over 130 million clinical cases annually. The circumsporozoite protein (CSP) is the most abundant molecule on the surface of Plasmodium sporozoites and is considered a leading pre-erythrocytic stage vaccine candidate. CSP is essential for sporozoite maturation, migration, and invasion. Anti-CSP antibodies interrupt sporozoite migration and infection of hepatocytes thus reducing liver-stage burden. P. vivax CSP is composed of three subdomains: a highly polymorphic immunodominant central repeat region (CRR), conserved N-terminal ,and C-terminal subdomains. …

A Qualitative Study Of Facilitators And Barriers Perceived By Black Students And Their Effect On Advanced Placement Course Enrollment In High School, Austin R. Cole

USF Tampa Graduate Theses and Dissertations

Advanced Placement (AP) classes can provide many benefits to students. The rigorous curriculum gives students an academic challenge to expand their educational abilities (The College Board, 2014). However, students of color are often underrepresented in AP participation (The College Board, 2014). Research has investigated factors among students of color that predict participation and success in AP courses, suggesting that family SES and prior academic achievement (Dixson et al., 2017; Ndura et al., 2003), and racial barriers impact students’ ability to choose to take AP courses (Jeffries & Silvernail, 2017; Walker & Pearsall, 2012). This study addressed a gap in the …

The Impact Of Covid-19 On Service Access For Children And Adolescents With Intellectual And Developmental Disabilities Across Florida, Alyssa N. Hanley

USF Tampa Graduate Theses and Dissertations

In early 2020, the COVID-19 pandemic struck. Businesses worldwide closed to lessen the spread of the virus. Due to an increased need for specialized services compared to the general population, individuals with intellectual and developmental disabilities (I/DD) may have been disproportionately affected by COVID-19 shutdowns. Without access to schools and centers where services are provided, therapeutic progress was halted. Services, such as special education, occupational therapy, and physical therapy, were paused, impacting access and maintenance for individuals with I/DD. In addition, services that continued did so using modified delivery methods such as telehealth. To investigate the impact of the COVID-19 …

Efficacy Of Online Social Movements For Sparking Change: The Case Of The Missing Murdered And Indigenous Women Movement (#Mmiw), Kacy A. Bleeker

USF Tampa Graduate Theses and Dissertations

The current study examined the context of the Missing and Murdered Indigenous Women Movement (#MMIW) in the context of activist engagement, media representations, and public awareness and beliefs related to the movement. The present study framed the movement within the context of social movement theory, intersectionality, and feminism, to determine the applicability of these frameworks in explaining an Indigenous social movement. While the use of social media to facilitate and mobilize social movements is not a new phenomenon, limited research has examined the functionality of online social movements, particularly in the context of movements concerned with intersectional identities. Research highlights, …

An Empirical Investigation Of Network Topology On Majority Illusion, Behavior Adoption, And Polarization, Sreeja Sreekantan Nair

USF Tampa Graduate Theses and Dissertations

Social influence plays a significant role in shaping opinions and behaviors both online and inthe physical world. The ways in which we interact with others and the information we receive can significantly influence our beliefs and attitudes towards different issues. While online social media provide platforms for such interactions, the underlying network structure can impact various social influence phenomena, including majority illusion, behavior adoption, and polarization.

This dissertation examines the role of network topology in three social influence processes:majority illusion, behavior adoption, and polarization. The majority illusion refers to a perception bias that occurs when individuals believe that an opinion …