Digital Commons Network^™

Programmable And Scalable Bit-Sliced Vlsi Architecture For Decision Tree Based Machine Learning Edge Inference, Raaga Sai Somesula

USF Tampa Graduate Theses and Dissertations

As the volume and diversity of Internet-of-Things (IoT) data continues to grow, traditional cloud-based processing methods face significant challenges, including latency, bandwidth constraints, and privacy concerns. Our research focuses on employing decision trees (DTs) as an intelligent filtering mechanism on the edge. Preliminary comparisons across four datasets revealed DTs are significantly more efficient than multilayer perceptrons (MLP), saving 97-98\% in area and power, leading to the selection of DT for our proposed architecture for lightweight IoT devices. We propose a novel programmable and scalable custom application specific integrated circuit (ASIC) architecture designed for Decision Tree based ML inference. Each bit-slice …

Automatic Image-Based Nutritional Calculator App, Kejvi Cupa

USF Tampa Graduate Theses and Dissertations

Nutrition plays a pivotal role in shaping an individuals’ health and quality of life, making the evaluation of dietary intake crucial for promoting healthier lifestyle choices. Various solutions, particularly mobile apps, have been developed to facilitate the process of dietary estimation. Accurate nutritional intake assessment relies on two key components: ingredient recognition and food portion estimation. For a mobile app to offer a comprehensive solution for automatic nutritional assessment, it must address both components.

In this work, we focus on a mobile app pipeline: the semi-automatic pipeline which focuses on automatic food ingredient recognition. This pipeline integrates state-of-the-art models for …

Linking Shared Decision Making To Outcomes In Simulated Prenatal Genetic Counseling Sessions, Raquel C. Chavarria

USF Tampa Graduate Theses and Dissertations

Shared decision-making (SDM), defined as the collaborative process between patient and healthcare provider to arrive at a values-based clinical decision, may be valuable in genetic counseling (GC) given that patients are often faced with various options. Four published studies have measured or made conclusions about the use of SDM skills in GC settings, but only one study evaluated relationships between third-party observations of SDM in recorded GC sessions and patient-reported outcomes (i.e., anxiety and decisional conflict) and found no correlations between these measures. The purpose of this study was to evaluate relationships between SDM and measures of patient-reported experience (i.e., …

Moderating Role Of Momentary Social Anxiety In The Relationships Between Authenticity, Situational Appraisals, Expressivity, And Approach-Avoidance Motivation, Jessica A. Birg

USF Tampa Graduate Theses and Dissertations

Authenticity, the sense of being true to oneself, may be less sought out or rewarding whenconcerns with social approval and/or rejection take priority. The present study extends prior work by investigating the moderating role of momentary social anxiety in concurrent relationships between (1) perceptions of social interaction partner (i.e., feeling close to or judged by an interaction partner) and authenticity and (2) expressivity while socializing and authenticity. This study also aimed to identify (3) how momentary social anxiety moderates the prospective relationship between authenticity and social approach/avoidance motivation. Using ecological momentary assessment (EMA), data was collected from 55 participants over …

Retirement And Cognitive Aging: Modifying Factors, Britney M. Veal

USF Tampa Graduate Theses and Dissertations

Due to the increase in the aging population and individuals spending more years in retirement, researchers and public health policymakers have expressed a growing interest in understanding retirement and the overall effects on health and aging. One area that is gaining attention is retirement and its effect on cognition. However, the association between retirement and cognition remains unclear, and pre-retirement modifying factors such as reasons for retirement and longest-held occupation have not been thoroughly assessed. Therefore, using data from the Health and Retirement Study (HRS; n = 3,838) and mixed effects models, this dissertation aimed to examine the association between …

Latent Growth Model Analysis Of Saebrs Scores: Establishing Typical Rate Of Growth And Predictive Validity Of Academic Outcomes, Thomas Koza

USF Tampa Graduate Theses and Dissertations

There are rising rates of student social-emotional and behavioral (SEB) concerns for students in the United States. Universal screening tools, such as the mySAEBRS (student self-report) and SAEBRS (teacher report), can be used to help identify students who may need additional SEB support. The current study uses Latent Growth Modeling (LGM) as a novel approach to identify growth trajectories of student mySAEBRS and SAEBRS domain scores (i.e., social domain, academic domain, and emotional domain) and aReading scores to provide insight into typical SEB growth rates and the ability of these domain scores to predict reading achievement. The study uses a …

No Change No Gain: A Comparative Framing Analysis Of The Nfl’S Inspire Change Campaign, Kia K. Cannon

USF Tampa Graduate Theses and Dissertations

This research provides a basis for understanding how public relations practitioners should present CSR initiatives in their organizations and how the media may interpret its initiatives. The researcher analyzed how the NFL framed its Inspire Change campaign and how it was translated in the media. First, a qualitative textual analysis determined how the NFL strategically framed its newly founded social justice initiative. Then, another textual analysis examined how the media framed the Inspire Change initiative and if the NFL’s preferred frames were reflected in the media. The results reveal that while two out of three of the NFL’s frames of …

The Effect Of Emotion On Risk Perception And The Blackstone Ratio, Brianna Duncan

USF Tampa Graduate Theses and Dissertations

In the public debate concerning crime, there are generally two opposing positions regarding error rates within guilt convictions: a greater concern for false positives (convicting an innocent person) or a greater concern for false negatives (not convicting a guilty person). Public attitudes have typically indicated that false positives should be considered worse, with a range in global surveys from 51% (Zhuo, 2021) to as high as 85% (Scurich, 2015) of the population expressing this perspective. To explore the reason behind these beliefs, the current study explores the effect of emotions. Lerner and Keltner (2000) found that fear and anger, though …

Risk Assessment Of Blood-Borne Pathogen Exposure For Emergency Responders, Jill A. Ireland

USF Tampa Graduate Theses and Dissertations

Emergency responders face a significant risk of exposure to blood-borne pathogens (BBPs), such as HIV and hepatitis, due to the nature of their work environment. This study investigates this issue utilizing a dual approach of data analysis and online surveys to assess exposure rates, risk perceptions, factors that contribute to risk and prevention practices. In addressing issues ranging from personal protective equipment (PPE) usage to levels of concern surrounding blood and bodily fluid contact, the findings underscore the need for tailored safety measures, comprehensive education, and improved prevention strategies.

The examination of 346 worker's compensation exposure claims highlighted a significant …

Predicting Gender Of Author Using Large Language Models (Llms), Satya Uday Sanku

USF Tampa Graduate Theses and Dissertations

The advent of text data from social media, blogs, movie reviews, and other textual sources has opened new avenues for research, particularly in the domain of Author Profiling. Author Profiling helps in Capturing the Stylistic features and also useful for analyzing the required elements in the written text. This Study addresses one of the tasks in Author Profiling which is termed as gender detection or Classification of Gender from Text. The main goal of this research is to obtain valuable and relevant gender characteristics that will accurately classify the Author’s gender of a review extracted from an Anime Review website. …

Health Status In An Urban-Dwelling, Subtropical Frog Species (Lithobates Sphenocephalus) And Its Relation To Ranavirus And Hemoparasites, Gabrielle M. Wickersham

USF Tampa Graduate Theses and Dissertations

Urbanization poses significant challenges to wildlife, including amphibians. The present study uses a multi-parameter approach that incorporates veterinary techniques to investigate the current health status of the adult southern leopard frogs (Lithobates sphenocephalus) in Tampa Bay, Florida, amidst urban stressors including nutrient loading, fragmented habitats, and light and noise pollution. Novel values for fluctuating asymmetry (e.g., variation between left and right bilateral traits; FA), body condition (CF), stress (e.g., neutrophil:lymphocyte (N:L) ratio), and inflammation (e.g., neutrophil morphologic abnormalities, parasite load) are reported. I also investigate the relationship of overall health with ranavirus presence and hemoparasite infections. Ranavirus was absent in …

Single And Dual Cell Encapsulation Via Liquid Core Hydrogels Using Pico Injection, Jade Houston

USF Tampa Graduate Theses and Dissertations

In this project, a comprehensive microfluidic device, along with several interdependent subsystems, was designed and developed in SolidWorks, leveraging a combination of 3D resin printing with biocompatible resin and micromachining with polymethylmethacrylate (PMMA). The microfluidics chip integrated both passive and active components to facilitate its primary function: dual cell encapsulation via liquid core sodium alginate hydrogel droplets.

Integral to the microfluidics chip design were key features including a 5-convolution Archimedes spiral for particle sorting, a flow focusing junction for droplet generation, and a pico injector for injecting additional cells into passing droplets via the manipulation of an electric field.

An …

Educator And Caregiver Perceptions Of Project Begin Well: An Early Childhood Risk Identification Course, Samin Khallaghi

USF Tampa Graduate Theses and Dissertations

The early years of a child's life are vital to building the foundation for early childhood, and educators and caregivers are at the heart of making this foundation for children. However, educators and caregivers often lack knowledge on correctly identifying risks in children. The current study used a quantitative non-experimental design to examine early childhood educator and caregiver perceptions of a training program called Project Begin Well. Project Begin Well included a risk identification course for educators and caregivers of children aged 3-5 years. Specifically, educators' and caregivers' knowledge, skills, attitudes, aspirations, and behaviors toward the risk identification course were …

Dissolved Nickel Speciation At The Bermuda Atlantic Time-Series Study (Bats) Site, Caitlyn E. Parente

USF Tampa Graduate Theses and Dissertations

Here I present the first depth profiles of dissolved nickel (DNi) speciation over an annual cycle at the Bermuda Atlantic Time-series Study (BATS) site in the North Atlantic. Seawater samples were collected in March, May, August, and November 2019 and analyzed for labile DNi using competitive ligand exchange-adsorptive cathodic stripping voltammetry (CLE-AdCSV). Labile DNi was measured by CLE-AdCSV as the fraction of DNi that exchanges with an added competitive ligand in an overnight equilibration. Results revealed two distinct fractions of DNi present throughout the water column: a labile fraction, and a strongly organically complexed (i.e., non-labile) fraction. More than 50% …

The Perception Of Innocence And Guilt: Understanding Relationships Between Exonerees And Their Loved Ones, Martha E. Mccullough

USF Tampa Graduate Theses and Dissertations

Exoneration and wrongful conviction complicate the field of criminology and the criminal justice system. Much of the scholarship on wrongful conviction focuses on the faults of the criminal justice system, such as false or misleading forensic evidence, false confessions, official misconduct, inadequate legal defense, and more. However, there is less research on the social, psychological, and economic impact of a wrongful conviction on those who have been wrongfully convicted and those associated with wrongful convictions (e.g., exoneree's loved ones). Recent studies indicate that social and psychological implications after a wrongful conviction may not only affect exonerees but also their loved …

Mentorship In A Virtual World: How Remote Work Relates To Mentoring Relationships And Outcomes, Alyssa M. Lezcano

USF Tampa Graduate Theses and Dissertations

In the context of an increasingly virtual workplace, it is critical to understand how remote and hybrid work arrangements relate to key developmental, interpersonal relationships at work, such as mentoring relationships. Guided by the existing mentoring literature as well as leader distance theory, the present study aimed to examine the mentorship experiences of early-career protégés who worked remote and hybrid hours. Three waves of data were collected to investigate the influence of remote work and mentor distance on protégés’ perceptions of mentoring support received. Specifically, the study examined protégés’ degree of remote work, perceptions of social and spatial distance between …

Factors Impacting Genetic Test Result Recall And Adherence To Cancer Risk Management Recommendations Among Patients With Germline Pathogenic Variants, Karishma Prakash Bharwani

USF Tampa Graduate Theses and Dissertations

Only 20-60% of information from medical appointments is estimated to be retained of which about half is recalled accurately; however there remains limited information about recall following disclosure of inherited cancer genetic test results (GTR). We sought to evaluate recall of GTRs and the association of recall with adherence to recommended cancer risk management (CRM). Study participants were consented individuals with a confirmed germline pathogenic or likely pathogenic variant (GPV) in an inherited cancer predisposing genes for which there are CRM guidelines per the National Comprehensive Cancer Network (NCCN). Through information collected through self-reported surveys, adherence to CRM was defined …

Genre Analysis Of Promotional Texts: Rhetorical Patterns And Metadiscursive Features Of Teaching Philosophy Statements, Khalid Alghamdi

USF Tampa Graduate Theses and Dissertations

A growing body of academic writing literature has been devoted to studying the rhetorical patterns and language use in diverse academic texts. One of the central goals of these studies is to demystify these texts to acquaint writers, particularly less experienced ones, with the genre conventions. However, Teaching Philosophy Statements (TPS) as a critical academic genre have received insubstantial attention in the literature. TPSs are major gatekeeping practices in academia that play a significant role in controlling access to academic positions and opportunities, where an insufficient grasp of their conventions might affect an individual's academic future.

This study is pedagogically …

The Cultural Relevance Of The Well-Being Promotion Program, Gabrielle Francis

USF Tampa Graduate Theses and Dissertations

Schools are well-situated to be a primary setting to provide mental health services to youth. In fact, most minoritized students who receive mental health services do so through school (Ali et al., 2019). However, even school-based mental health services are not equitably accessed and provided for diverse populations of students, and minoritized students are less likely to have their mental health needs met in schools (Gudiño et al., 2009; Thomas et al., 2011). There are several reasons for the disparity in mental health services amongst students including the cultural relevance of interventions (Santiago-Rosario et al., 2021) and the early departure …

Genetic Counseling Student Self-Efficacy, Exam Anxiety, And Opinions Related To Study Materials For The Genetic Counseling Board Certification Exam., Jessica F. Stanton

USF Tampa Graduate Theses and Dissertations

The Genetic Counseling Board Examination is a critical assessment for clinical practice in the field. However, the relationship between students’ test-related anxiety, confidence in their ability to study (i.e., self-efficacy), and the use of gamification for board examination preparation remains unexplored. This study compared gamification and traditional quiz-style study methods using two randomized groups of students preparing for the Genetic Counseling Board Examination. The primary objectives were to assess for changes in exam-related anxiety and self-efficacy after completing the respective study materials and to evaluate the acceptability and completion rates of these materials. Ninety-eight genetic counseling students or recent graduates …

Formulating Utopian Pasts: Time As A Coping Method For Lgbtq+ Floridians, Elise M. Kuechle

USF Tampa Graduate Theses and Dissertations

Florida has emerged in recent years as a breeding ground for a new generation of anti-LGBTQ+ legislation. The state has introduced 10 anti-LGBTQ+ laws so far in 2023, touching on issues such as bathroom access, healthcare, and education. This paper analyzes the experiences of queer and transgender people living in Florida to ask: How do LGBTQ+ people in Florida cope phenomenologically with rising anti-LGBTQ+ discrimination? Drawing on data from 22 interviews with LGBTQ+ people situated in and around Florida in 2023, this paper captures a distinct political moment for the people that I spoke with, as anti-LGBTQ+ sentiments continue to …

“You Are Not The Same Person You Were:” On Diagnosis Seeking During A Liminal Period And Systemic Lupus Erythematosus, Kaylee A. Appleton

USF Tampa Graduate Theses and Dissertations

“You are the healthiest looking sick person I’ve ever met”

(Daphne, 62)

Systemic Lupus Erythematosus (SLE) is one of many chronic illnesses considered to be “invisible.” Once the onset of symptoms occurs, the illness can drastically change the dynamic of an individual's life in ways that may not be noticeable to others, even before a chronic illness diagnosis. I discuss how these individuals experience the liminal period of developing symptoms and seeking a diagnosis. Furthermore, I discuss vignettes that exemplifies the occurrence of a liminal state while looking at the current for-profit set-up of healthcare in the United States. Utilizing …

Comparing The Effects Of The Comprehensive School Threat Assessment Guidelines Training Workshop: Online Vs. In-Person, Caroline Mierzwa

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to examine participant outcomes related to the Comprehensive School Threat Assessment Guidelines (CSTAG) professional development training workshop when delivered in-person and online. Participant outcomes in knowledge of threat assessment, ability to classify a threat case appropriately, and overall evaluations of the training workshop were examined to evaluate threat assessment team aspirations to use the threat assessment procedures and effectiveness of the CSTAG training. Kirckpatrick's Model of Evaluation was utilized to investigate participants' reactions to the training and learning outcomes. Furthermore, participant results were assessed based on their respective position within schools, encompassing roles such …

Traditional Or Trendy: News Presentations In Short Form Video And Its Audiences, Sophie Rose Theiss

USF Tampa Graduate Theses and Dissertations

The landscape of short-form video news is evolving, propelled by the popularity of platforms like TikTok. This paper employs content analysis to examine the traits and production elements of six news publishers utilizing short-form video to engage with audiences through traditional and trendy, non-traditional presentations. It investigates audience interactions with this content and explores how specific traits may influence audience sentiment. Findings reveal shifts in traditional news norms as they adapt to social media platforms, positive audience responses to trendy, non-traditional videos, and audience sentiment and engagement across short-form video platforms. Additionally, distinctions emerge between publishers rooted in social media …

Surface Modification Of Poly(4,4'-Oxydiphenilene Pyromellitimide) With Low-Pressure Plasma Treatment, Cihan Aktas

USF Tampa Graduate Theses and Dissertations

This study explores the change of the wetting characteristics of commercially availablepolyimide (PI), Kapton® HN, films a type of poly(4,4′-oxydiphenylene-pyromellitimide), following treatment with low-pressure plasmas of carbon tetrafluoride (CF4), air, hydrogen (H2), carbon-dioxide (CO2) and oxygen (O2) gases as well as the surface texturing via laser-exposure procedure. The water contact angle (CA) and surface free energy (SFE) of untreated PI films were determined as 82.4°±0.8 and 45.0±0.3 mN/m, respectively. After CF4 plasma gas treatment, the CA value of PI films increased to 110.2°±1.0, while it decreased to 9.3°±2.3 after O2 plasma gas treatment. The surface free energy (SFE) of PI …

Examining Associations Between Social And Emotional Loneliness And Drinking In A Clinical Sample With Alcohol Use Disorder (Aud): An Ecological Momentary Assessment Study, Brendan E. Walsh

USF Tampa Graduate Theses and Dissertations

Loneliness, a negative affective state that arises when someone perceives a lack of social connectedness, is a predisposing and maintaining factor of alcohol use behavior. Several studies have linked loneliness to drinking at the daily level and elevated AUD risk using longitudinal designs; however, cross-sectional studies have identified inconsistent patterns. The current study applied a multidimensional framework of loneliness (i.e., emotional and social dimensions) to examine daily relations between loneliness and drinking in an AUD sample (N = 60), with consideration of drinking context (social vs. solitary) as a moderator. Results indicated that emotional loneliness (within-person) was associated with increased …

Development Of A Suspended Aerobic Membrane Bioreactor (Sambr) For Sustainable Wastewater Treatment On Early Planetary Bases, Talon James Bullard

USF Tampa Graduate Theses and Dissertations

Environmental Control and Life Support Systems (ECLSS) ideally should treat all “waste” streams for recovery in a sustainable and near closed-loop manner. This will be critical for Partial Gravity Habitats (PGH) and Early Planetary Bases (EPB) that will be established on the Moon and Mars due to the lack of readily available resources. Currently, the Water Recovery System (WRS), onboard the International Space Station (ISS), recovers and purifies water from urine and graywater. While efficient, this system is not optimized for future missions and utilizes physical-chemical technologies that operate with single-use and hazardous consumables. In response to the lack of …

Validating The Correlation Between Illuminance, Nighttime Crash Frequency And Demographic Characteristics On Roadway Segments In District 7, Florida, Aditi Sugeerappa Hoti

USF Tampa Graduate Theses and Dissertations

For a long time, streetlights have proved to be an effective tool to help users access roads safely. Hindrance to good visibility at nighttime has been attributed to accidents on the road. Florida is considered to have very dangerous roads due to careless driving which increases as nighttime approaches. Much empirical research has contributed to the attention nighttime crashes receive. This study examines the influence of roadway characteristics along with socio-economic factors on crashes through statistical and spatial analysis of roadway segments in Tampa Bay Region. Illuminance data, crash data and socio-economic data for roadways facing nighttime crashes under low-illuminance …

Student Perceptions Of The Nonmedical Use Of Prescription Stimulants And Preferences For Health Education, Ana Gutierrez

USF Tampa Graduate Theses and Dissertations

Nonmedical use of prescription stimulants (NMUPS) for the purpose of improving academic performance is a growing concern among the college population. According to the Substance Abuse and Mental Health Services Administration in 2020, rates of NMUPS were highest among 18–25-year-olds attending college. There are several adverse health outcomes associated with NMUPS, including cardiovascular damage, seizures, psychosis, and dependence. Given the rising rates of NMUPS in this group, and the negative health outcomes associated with NMUPS, it is vital to employ health education that allows students to make informed decisions about behaviors that impact their health. The purpose of this study …

Psychological Distress, Resilience, And The Impact On Quality Of Life In Breast Cancer Survivors With Taxane-Induced Peripheral Neuropathy, Lauren Schwab

USF Tampa Graduate Theses and Dissertations

The purpose of this dissertation study was to longitudinally examine psychological distress (depressive symptoms and anxiety symptoms), resilience, and the impact on quality of life (QOL) in breast cancer survivors (BCS) with taxane-induced peripheral neuropathy (TIPN). The specific aims were 1) to describe psychological distress (depressive and anxiety symptoms) in BCS with TIPN and the impact on QOL using a scoping review; 2) to determine the relationship between psychological distress, QOL, and resilience in BCS with TIPN over time in a 16-week randomized controlled trial (RCT); and 3) to determine if resilience moderates psychological distress and QOL in BCS with …