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Impact Of Grain Morphology On The Temporal Evolution Of Interfacial Area During Multi-Phase Flow In Porous Media, Fizza Zahid

USF Tampa Graduate Theses and Dissertations

Many environmental issues deal with the movement of immiscible fluids in the subsurface, e.g., cleanup of oil spills and geological carbon dioxide sequestration. Engineers face a constant challenge to improve the efficiency of these processes. This can be facilitated by studying the underlying physics of how fluids flow and interact in these systems.

Traditionally, lab experiments can provide reliable information about fluid architecture in porous medium, such as trapped fluid volumes and contact area between two immiscible fluids (interfacial area). However, these methods can be expensive and tedious. A well designed numerical experiment is not only able to describe fluid …

Essays On Snap Participation, Bmi, And Food Purchasing Decisions, Samaneh Ghadyani

USF Tampa Graduate Theses and Dissertations

This dissertation estimates the SNAP-eligible individuals’ Body Mass Index (BMI) changes by the American Recovery and Reinvestment Act of 2009 (ARRA) in Chapter 1. It also examines whether the food packages’ nutrition fact tables’ refinements improve SNAP-recipients’ healthy food purchasing decisions in Chapter 2. Below, the summary of these chapters are provided:

• Chapter 1: The Effects of the American Recovery and Reinvestment Act of 2009 on the Body Mass Index (BMI) of SNAP-Eligible Individuals
• Chapter 2: Do Changes in the Nutrition Facts Labels Affect SNAP-Participants’ Food Purchasing Decisions?

Chapter 1 studies the effects of the American Recovery and Reinvestment Act …

Educators’ Sensemaking Of Data Within An Mtss Framework: An Exploratory Case Study, Stephanie Marie Green

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to examine how educators working within a multi-tiered system of supports (MTSS) framework make sense of data, how they use data for instructional decision-making, and how the data use cultures at the district and school levels influence this data use. The study was designed with a theoretical framework informed by the sensemaking about student outcomes model (Bertrand & Marsh, 2015), the data literacy for teaching framework (Mandinach & Gummer, 2016c), and the data use cultures framework (Firestone & Gonzales, 2007). I explored these issues through a case study methodology, utilizing semi-structured interviews, observations, document …

Educational Experiences Of Congolese Refugees In West-Central Florida High Schools, Michaela J. Inks

USF Tampa Graduate Theses and Dissertations

Since 2016, refugees from the Congo Wars (RFCWs) have been one of the largestpopulations of refugees resettled in the United States. High-school aged RFCW students are, however, dropping out of Florida public high schools are alarmingly high rates. This study uses ethnographic methods such as interviews and participant observation to investigate educational challenges experienced by RFCW youth. This study has three objectives: to learn more about refugees with discontinuous education and the barriers to graduating from public high schools after resettlement; to better understand Tampa bay area programs that serve culturally and linguistically diverse (CLD) students; and to use ethnographic …

Corrosion Rate Prediction In Frp-Concrete Repair, Mohammad A. Khawaja

USF Tampa Graduate Theses and Dissertations

Research has proven that wrapping structural elements with fiber-reinforced polymers (FRPs) slows down chloride-induced corrosion rate but does not stop it. Although FRP has been used for corrosion repair for over 40 years, predictive corrosion rate models for FRP-concrete systems are limited in literature. This dissertation presents an oxygen diffusion-based predictive framework to estimate corrosion rate in FRP-concrete systems.

The dissertation has three main components. First, a core framework that is referred to as Khawaja-Sen-Bhethanabotla (KSB) model. In the KSB model, statistical methods were used to extend experimental data on oxygen permeation coefficients. These data were for one and two …

Power System Optimization Methods: Convex Relaxation And Benders Decomposition, Minyue Ma

USF Tampa Graduate Theses and Dissertations

Power system optimization methods are wildly used to solve power system problems. Engineers adopt different methods to keep the reliability and efficiency of the power system operation, planning and control. This dissertation focuses on the application and implementation of two optimization methods: Convex relaxation and Benders' decomposition.

The first part of the dissertation focuses on the application of convex relaxation to solve Alternating Current Optimal Power Flow (ACOPF) problems. In the completed work, a 3-node cycle based sparse convex relaxation is proposed to solve ACOPF problems. This method adds virtual lines in minimal chordless cycles to decompose each of them …

Hegel And Schelling: The Emptiness Of Emptiness And The Love Of The Divine, Sean B. Gleason

USF Tampa Graduate Theses and Dissertations

In this dissertation, I argue that, all appearances to the contrary, Hegel does not attempt to achieve a complete systematization of reason in a self-reflexive sense in his system of philosophy. Quite the opposite, I maintain that the absolute Idea is the actuality of the self-transcendence of the divine. Along these lines, I argue (in agreement with Slavoj Žižek) that the absolute “Idea” is non-total and incomplete; in this sense, Hegel is neither a modern thinker nor a post-modern thinker, but rather he presents a version of thinking that is both modern and post-modern, while neither merely one nor the …

Efficient Post-Quantum And Compact Cryptographic Constructions For The Internet Of Things, Rouzbeh Behnia

USF Tampa Graduate Theses and Dissertations

IoT systems often rely on low-end devices to send measurements to other parties and depending on the setting, unauthorized alteration and/or privacy violation of these measures can have catastrophic consequences (e.g., embedded medical sensors). Therefore, providing efficient authentication, integrity, and confidentiality in these settings is vital. While conventional cryptographic measures (e.g., ECDSA) can be used to meet these security requirements, despite their elegant design, they are often too computationally expensive for low-end devices. This is further exacerbated when security against quantum computers is taken into the account.

In this dissertation, we propose a series of new efficient conventional and post-quantum …

Impact Of Health It On Practice Of Medicine, Deepti Singh

USF Tampa Graduate Theses and Dissertations

This dissertation focuses on three key facets of health IT impact on the practice of medicine: (1) Clinical impact on practitioner outcomes through malpractice claims, (2) Socio-economic impact on patient outcomes through the clinical treatment of social determinants of health (SDOH), and (3) Organizational impact on Long-Term Post-Acute Care (LTPAC) Facilities. The first dissertation essay (Chapter 1) investigates the impact of Health IT on the nature and severity of malpractice claims reported in Florida from 2009-2016. The essay empirically examines the treatment effect of federal initiatives, specifically the Meaningful Use program, on medical practitioners enrolled in the Medicare program and …

Racialized Morality: The Logic Of Anti-Trafficking Advocacy, Sophie Elizabeth James

USF Tampa Graduate Theses and Dissertations

How race shapes the lenses that anti-trafficking advocates use to promote client interests is critical to the successful reintegration of survivors and their access to the right resources. Any threat to rapport building can have adverse effects to the recovery of survivors. Cultural oppression (or the denial of racism) when considering micro-level interactions of anti-trafficking advocates and survivors, not only compounds victims’ trauma but creates the reality where black and brown bodies continue to be violated and victimized.

Due to these nuanced tensions at the intersection of race and gender, my thesis research examines whether and to what extent anti-trafficking …

Design, Development, And Evaluation Of An Artificial Intelligence-Enabled Chatbot For Honors College Student Advising In Higher Education, Reginald Saint-Aude Lucien

USF Tampa Graduate Theses and Dissertations

Academic advising is seen increasingly as an essential function supporting the educational mission of universities. Institutions have made significant investments supporting academic advisors and student success initiatives by leveraging technology resources such as Canvas and Degreeworks. There is a rising need for technology that can assist academic advisors in their responsibility to guide students along the path to academic success and AI resources that promote more efficient use of human capital are positioned to meet that need. Chatbot applications can serve as a technology-mediated intervention for delivering information and interactive content to support student success.

This study aimed to design, …

Mental Illness Diagnosis And The Construction Of Stigma, Katie Lynn Walkup

USF Tampa Graduate Theses and Dissertations

This dissertation explores how mental health legislation and related policy documents contribute to identification, diagnosis, and stigmatization. Using a mixed methods approach including content and stylometric text analysis with R as a heuristic for close and critical reading, I demonstrate how these documents normalize mental health concerns as a public threat. To do this work, I analyze how the Florida Mental Health Act (Chapter 394) and the Florida Marjory Stoneman Douglas High School Public Safety Act (SB 7026) circulate and sustain dominant narratives about mental illness. I trace where these narratives are distributed into Florida school districts’ mandatory mental health …

Increasing Personal And Product Influence Through Background Auditory And Visual Cues, Zhihao Yu

USF Tampa Graduate Theses and Dissertations

Effective persuasion is indispensable for success in business and in life. People may have the best idea, the best product, and the best policy, but without persuading their target audiences to take actions, none of those would matter. However, getting people to say “Yes” is becoming harder and harder. We are living in a complicated world that is busy and crowded with too much information. People are getting more used to processing information in an automatic way and not bothering to scrutinize every bit of information. As a result, companies and individuals have fewer chances to influence their audiences through …

Saudi Special Education Teachers’ Perspectives On The Use Of Ipads To Enhance Communication Skills For Students With Autism, Adil Alghamdi

USF Tampa Graduate Theses and Dissertations

This study explored teachers’ perceptions of rough-and- tumble (R&T) play in early childhood education in Saudi Arabia. The literature on rough-and-tumble play in Saudi Arabia is limited in scope, and more research is needed to explore teachers’ perceptions on this type of play for early learners. The pertinent literature reveals that R&T play, which includes running, jumping, fighting, wrestling, chasing, pulling, pushing, and climbing, among other rough playful activities, can positively impact learning and development across psychosocial, emotional, and cognitive domains. Teachers’ understanding of R & T play is key, and the attitudes of Saudi early childhood teachers who are …

Barriers To Reducing The Assistive Technology Use For Students With Autism As Perceived By Special Education Teachers In Saudi Arabia, Othman Ahmed Alasmari

USF Tampa Graduate Theses and Dissertations

Prior research has indicated that assistive technology (AT) devices and services can improve the functional capability of students with autism, which includes multiple areas of student needs, such as communication, accessibility, organization, sound, sight, academic skills, mobility, and memory. Nevertheless, concerns persist as to how AT devices are being implemented in the classroom; this is because teachers are experiencing a variety of barriers to using AT (Hew & Brush, 2007). The purpose of this study is to explore the barriers affecting Saudi teachers’ use of AT for teaching children with autism spectrum disorder (ASD). This study’s sample consists of 85 …

Making Change In The Nickel City: Food Banking And Food Insecurity In Buffalo, Ny During The Covid-19 Pandemic, Sarah E. Bradley

USF Tampa Graduate Theses and Dissertations

In March 2020, the coronavirus 2019 (COVID-19) pandemic began to spread across the United States. The pandemic disrupted the food system in an unprecedented fashion, exacerbating existing inequalities and contributing to increased rates of food insecurity and charitable food use. This research project considers the food system of Buffalo, New York and seeks to capture the way in which both food insecure households and the food pantries that serve them adapted to the pandemic. Using data from 75 client surveys, 52 qualitative semi-structured interviews with food pantry staff and clients, and 15 participatory GIS mapping interviews, this mixed-methods project describes …

Impacts Of Experiential Learning On The Affective Domain: Gaining Insight Into How To Broaden Participation In The Geosciences, Meghan Lindsey Cook

USF Tampa Graduate Theses and Dissertations

Experiential learning exercises, such as field trips, are a common pedagogical practice in geoscience curriculums. Their purpose is to facilitate the transfer of knowledge gained in a classroom or lab setting into a field setting, but can be considered a barrier for entry into the geosciences for those with disabilities, caregiver/employment responsibilities, or financial constraints. Educators have begun turned to other modalities, such as virtual field experiences (VFEs), to create a more inclusive environment in the geosciences. However, the validity of VFEs as a replacement for, or augmentation to traditional field trips has yet to be established. The cognitive domain …

Self-Protection In Cyberspace: Assessing The Processual Relationship Between Thoughtfully Reflective Decision Making, Protection Motivation Theory, Cyber Hygiene, And Victimization, C. Jordan Howell

USF Tampa Graduate Theses and Dissertations

The current study, using structural equation modeling, assesses the processual relationship between thoughtfully reflective decision making (TRDM), theoretical constructs derived from protection motivation theory (PMT), cyber hygiene, and online victimization to determine the cognitive decision-making process that leads to the adoption of online self-protective behaviors, which reduces the occurrence of victimization experiences. Findings, derived from a general sample of Internet users in the United States, reveal: (1) engagement in cyber hygiene practices, as a form of target hardening, decreases Internet users’ experiences with online victimization; (2) thoughtfully reflective decision makers, in the face of cyber threats, develop higher threat appraisals …

Evaluating The Use Of An Interdependent Group Contingency In Online Graduate Courses To Increase Engagement, Tiana Evans

USF Tampa Graduate Theses and Dissertations

Enrollment in online academic programs has increased substantially in recent years (Allen & Seaman, 2011) and is especially relevant due to the COVID-19 pandemic (Khalil et al., 2020). Peer interaction and engagement opportunities are strategies associated with course satisfaction, test performance, and grades and should be incorporated into online courses (Conaway et al. 2005). Group contingencies have been commonly studied in face-to-face classrooms and have been found to be effective intervention in changing target behavior in elementary and secondary education settings (Barrish et al., 1969; Deshais et al., 2019; Harris & Sherman, 1973; Mitchell et al. 2015; Wiskow et al., …

Moving Science To Practice: Exploring Implementation Practice Capacity In Community Settings, Enya B. Vroom

USF Tampa Graduate Theses and Dissertations

Due to the significant prevalence of mental and substance use disorders in the United States, the push for the development and implementation of evidence-based practices (EBPs) has grown exponentially in the last 30 years. Community-based organizations (CBOs) (i.e., self-governing and/or not-for profit) have been identified as significant providers of behavioral health services. However, there are gaps in the literature surrounding CBO implementation capacity, meaning their ability to adopt, implement, and sustain EBPs. There is a need for more research examining capacity training initiatives that specifically target CBOs and implementation practice. The purpose of this dissertation research was to investigate how …

Case Studies In Applied Behavior Analysis: Self-Management Package To Increase Walking Behavior And Class Pass Intervention To Decrease Off-Task Behavior, Michelle Wood

USF Tampa Graduate Theses and Dissertations

Case Study 1: Sedentary lifestyles are part of an increasing problem of social significance in the United States. Behavioral interventions can be used to effect change in this area and the target behavior of increase can be physical activity. Multiple behavioral change techniques used within an umbrella of a self-management intervention package were utilized to increase physical activity, more specifically walking behavior, for one participant. The study results showed that the self-management intervention package was effective in increasing walking behavior for the participant, and future research is discussed.

• Applying behavioral interventions to the area of physical activity can assist clinicians …

Efficient Hardware Constructions For Error Detection Of Post-Quantum Cryptographic Schemes, Alvaro Cintas Canto

USF Tampa Graduate Theses and Dissertations

Quantum computers are presumed to be able to break nearly all public-key encryption algorithms used today. The National Institute of Standards and Technology (NIST) started the process of soliciting and standardizing one or more quantum computer resistant public-key cryptographic algorithms in late 2017. It is estimated that the current and last phase of the standardization process will last till 2022-2024. Among those candidates, code-based and multivariate-based cryptography are a promising solution for thwarting attacks based on quantum computers. Nevertheless, although code-based and multivariate-based cryptography, e.g., McEliece, Niederreiter, and Luov cryptosystems, have good error correction capabilities, research has shown their hardware …

Behavior Analytic Interventions For Promoting Skill Acquisition In Individuals With Asd: Two Case Studies, Taylor Marie Comber

USF Tampa Graduate Theses and Dissertations

This report describes two case studies that used behavior analytic interventions to promote skill acquisition during structured instructional activities for individuals with autism spectrum disorder (ASD). The first study examined the effects of presession pairing (PSP) implemented by a teacher in the natural classroom setting for a 6-year-old with ASD whose problem behavior was associated with gaining access to attention and escaping from task demands. Results showed PSP augmented with a visual cue resulted in increased on-task behavior and decreased disruptive behavior. The second study examined the use of discrete trial training (DTT) for a 16-year-old female adolescent with ASD …

An Evaluation Of Video Feedback With And Without Video Modeling To Enhance Barbell Squat Form, Alexandra Olles

USF Tampa Graduate Theses and Dissertations

Previous studies have assessed the use of video interventions to enhance athletic performance. However, few studies have evaluated the use of video interventions to improve form in weightlifting. The present study evaluated the effects of video feedback (VF) with and without video modeling (VM) to enhance barbell squat form with novice and typically developing adults. The results showed that VF increased performance to near 100% for one participant. For the other VF increased performance to moderate levels and the addition of VF only slightly increased performance

"Duck Wars": Examining The Narrative Construction Of A "Problem" Species, Jenna A. Bateman

USF Tampa Graduate Theses and Dissertations

The problematization of non-human animals occurs through a process of claimsmaking that constructs certain species as “problems”. My thesis examines the news narrative constructions of the Muscovy duck in Florida and Texas. I use a narrative analysis to examine the themes through which news narratives make claims in their construction of the “duck wars” in Florida and Texas. In the “duck wars”, the problematization of the Muscovy occurs through a set of claims made about the species by the reporters and residents in Florida and Texas neighborhoods. There are also sets of claims about other groups associated with the species, …

The Value Of Sleep: Aura And Aesthetics Of Cohabitation In Juha Lilja's Revision Of Warhol, Christopher Costabile

USF Tampa Graduate Theses and Dissertations

This thesis positions Juha Lilja’s 2013 digital video work, Sleep, as a prime example of what the author terms an “aesthetics of cohabitation” — a newly suggested method of artistic creation set in opposition to capitalist society’s commodification of both space and time, represented here through the work of Robert Hassan and Jonathan Crary. Lilja’s eight-hour-long video work, which is accessible on YouTube, is a reimagining and re-envisioning of Andy Warhol’s film of the same name. It subverts the intended function of digital streaming platforms while using digital technology to meet aesthetic criteria in shot length and overall duration, which …

Longitudinal Trajectory Tracking Analysis For Autonomous Electric Vehicles Based On Pid Control, Hossein Amiri

USF Tampa Graduate Theses and Dissertations

The implementation of autonomous vehicles has huge potential for revolutionizing transportation as we currently know it. All use cases of autonomous vehicles require the vehicle to travel on a pre-specified path. Accurate tracking of this defined trajectory is a crucial aspect of the implementation of autonomous vehicles; a controller system is required to translate this pre- defined trajectory in the form of the throttle, brake, and steering inputs. This project covers the application of a Proportional-Integral-Derivative (PID) controller to achieve longitudinal trajectory tracking of autonomous electric vehicles with stability and accuracy in the CARLA autonomous driving simulation platform. The implemented …

Prediction Of The Effects Of Turbulence On Vehicle Hydroplaning Using A Numerical Model, Thathsarani Dilini Herath Herath Mudiyanselage

USF Tampa Graduate Theses and Dissertations

Pneumatic hydroplaning has been identified as one of the major causes of wet weathertraffic accidents. Therefore, knowledge of potential hydroplaning speeds is crucial in designing roadways to reduce crash risks. It has been shown that the tire inflation pressure is the predominant factor affecting the hydroplaning speed while factors such as the water film thickness also contribute heavily to this phenomenon. Extensive research has been directed at the development of accurate models to predict the effects of vehicle characteristics, pavement conditions and water film thickness on hydroplaning. Current literature does not indicate any studies directed at understanding the effects of …

The Mass Is The Medium: Marshall Mcluhan And Roman Catholic Liturgical Change, Ashil D. Manohar

USF Tampa Graduate Theses and Dissertations

The liturgical changes of Vatican II sought to bring a period of renewal to the Catholic laity by encouraging active participation and making the Mass more simple to understand. However, the time after the Council was characterized by confusion and disengagement by the laity. I will be discussing three significant changes to the liturgy at this time, The change from Latin to the vernacular, the change in the orientation of the altar and priest, and the change in acoustics, sound, and music. I will be examining all of these changes through the media theory of Marshall McLuhan, famous for coining …

Bait-And-Kill: Targeting A Novel Heme Biochemical Pathway In Hundreds Of Cancers, Christopher G. Marinescu

USF Tampa Graduate Theses and Dissertations

Cancer cells are characterized by their ability to grow and proliferate in rates that far exceed normal cells by modifying their iron/heme metabolisms to levels higher than normal. This imbalance of heme biosynthesis can lead to cancer cells having a flux of heme intermediates to the point where they enter a state called heme-overdrive. Heme-overdrive is a process unique to a variety of cancers but absent in normal tissues. With this enhanced production, heme can act as an epigenic regulator for signaling proliferation (18). Through the novel strategy called ‘bait-and-kill,’ cancer cells will be coerced into a state of heme …