Digital Commons Network^™

Exploring The Use Of Enhanced Swad Towards Building Learned Models That Generalize Better To Unseen Sources, Brandon M. Weinhofer

USF Tampa Graduate Theses and Dissertations

Deep learning models, typically, take significant time to train. Classifier ensembles are areliable way to increase classifier accuracy and perhaps generalizability to unseen sources of data. These classifiers can be combined with a simple voting scheme. The problem is that having multiple models can very heavily increase training time. Snapshot ensembles have been shown to provide a boost in performance by creating an ensemble of classifiers with different weights during the training of a single deep learned model. This can somewhat solve the problem of the increased training time as you do not have to train separate models. As Machine …

Curricula As Ideology: A Study Of Cultural Representations In Arabic As A Foreign Language (Afl) Textbooks, Zakaria Fahmi

USF Tampa Graduate Theses and Dissertations

The present study examines cultural representations in two widely used AFL textbook series, namely Al-Kitaab and Arabiyyat al-Naas. Fundamentally, three main issues motivate this study: (1) the cultural politics of language textbooks underlying the construction and dissemination of cultural knowledge and its prioritization of the latter on grounds of subjectivity, ideology, and power, (2) the politicization of Arabic as a foreign language (AFL) in light of the post 9/11 language advocacy, and (3) the prevailing standard language ideology of al-Arabiya al-fuṣħaa (العربية الفصحى) and the pedagogical challenges posed by Arabic diglossia. The data comprise five textbooks from the aforementioned series, …

Development And Evaluation Of Novel Applications For The Ethos Cbct-Guided Online Adaptive Radiotherapy System, Nour Nasser

USF Tampa Graduate Theses and Dissertations

Radiation therapy (RT) is an important pillar of modern cancer treatment, in neoadjuvant, curative, adjuvant, and palliative settings. The physics underlying RT is ionizing radiation that produces charged particles, which deposit their energy in the tissues they pass through. This energy results in unrepairable DNA damage resulting in the death of cancer tissue. The aim of RT is to deliver the desired radiation dose to the tumor while maximizing normal tissue sparing. Over the past decades, physics, engineering, and computational improvements has allowed advancement of external beam RT techniques, for example from 2D RT to 3D RT to now intensity …

Evaluation Of A Treatment Package To Increase Food Variety For Children With Autism Spectrum Disorder With Food Selectivity, Julissa Robles

USF Tampa Graduate Theses and Dissertations

Individuals with Autism Spectrum Disorder (ASD) and other developmental disabilities are often likely to develop feeding disorders and certain food selectivity (Wood et al., 2009). Various approaches have been taken to assess food selectivity in children with ASD to increase food consumption. Koegel et al. (2012) found that participants were more likely to try new foods when provided with contingent reinforcement with the choice of their preferred item or toy along with hierarchical exposure to novel foods. The purpose of this study was to extend the findings from Koegel et al. (2012) and assess the effects of using hierarchical exposure …

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 …

Semi-Automated Cell Annotation Framework Using Deep Learning, Abhiram Kandiyana

USF Tampa Graduate Theses and Dissertations

Unbiased stereology refers to a field of applied mathematics \cite{intro-to-stereology} focused on accurate (model and assumption-free) quantification of three-dimensional (3D) objects, typically based on their appearance in 2D sections (planes) through the objects. In the biological sciences, these techniques are widely used for making unbiased estimates of arbitrary-shaped (stochastic) objects such as stained cells, blood vessels, region volumes, etc., in tissue sections through a region of interest (ROI).

This fundamental methodology is widely used for evaluating structural changes that occur in diseases, aging, and pharmaceutical interventions, thereby ensuring reliable outcomes. In terms of limitations, stereology is tedious, time- and labor-intensive, …

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., …

The Prevalence And Perceptions Of Self-Relevant Research (“Me-Search”) In Psychological Science, Andrew R. Devendorf

USF Tampa Graduate Theses and Dissertations

Self-relevant research (i.e., me-search; SRR) is research that is informed by lived experience or having close connections to a topic. The disclosure of SRR may impact how a researcher is viewed in professional contexts, like an application to graduate school, and thus can impact who is recruited and retained in psychology. Although SRR appears to be common in psychology, little systematic research exists on its prevalence by subfield of psychology or how SRR is perceived. This study examined SRR across psychology disciplines. An online survey was administered to faculty and graduate students (N = 1313) affiliated with accredited doctoral programs …

Evaluation Of Pediatric Genetics Clinics’ Workflows, Efficiencies, & Genetic Counselor Job Satisfaction, Ashlyn M. Keziah

USF Tampa Graduate Theses and Dissertations

The organizational structures and workflows of pediatric/general genetics clinics exhibit significant variability across institutions. However, there is a notable lack of studies exploring which structural components within pediatric clinics contribute to increased patient volumes, while concurrently upholding genetic counselor work satisfaction and mitigating burnout risks. To address this gap, this multiple case study delves into the operational dynamics of several pediatric genetics clinics located throughout the state of Florida. We employed surveys and interviews to identify shared patterns and distinctions in clinic workflows and structures, subsequently evaluating efficiency and genetic counselor job satisfaction/burnout at each site. This study includes survey …

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 …

Analyzing The Relationship Between Preeclamptic Severity And Placental Methylation, Mackenzie C. Maggio

USF Tampa Graduate Theses and Dissertations

Preeclampsia (PE) is a life-threatening hypertensive disorder in pregnancy (HDP) characterized by high blood pressure and proteinuria after 20 weeks of gestation. PE poses significant risks to both maternal and child health. An incomplete etiopathogenesis, diverse disease heterogeneity, and limited intervention and detection strategies further exacerbate and perpetuate PE as a major public health concern. By assessing symptom severity of placental tissues from PE pregnancies and analyzing the DNA methylation differences, this thesis aimed to identify epigenetic variations contributing to disease heterogeneity. Using the publicly available dataset GSE 98224, differentially methylated region (DMR) analysis on placental samples (n=48) revealed increasing …

Utilizing Machine Learning Techniques For Accurate Diagnosis Of Breast Cancer And Comprehensive Statistical Analysis Of Clinical Data, Myat Ei Ei Phyo

USF Tampa Graduate Theses and Dissertations

Breast cancer represents a formidable malignancy, presenting a substantial threat to global health and individual well-being. Conventionally, it is widely held that the prognosis for breast cancer patients hinges predominantly upon the timing of diagnosis and the extent of cancer progression, typically delineated by its stage. However, emerging evidence from robust regression and machine learning analyses challenges this prevailing notion. The results indicate that survival months cannot be solely attributed to diagnosis and socio-economic factors. Instead, additional variables such as existing diseases and treatment complexities may contribute to the intricate landscape of breast cancer outcomes.

This research aims to delve …

Under Pressure: The Soft Robotic Clap-And-Fling Of Cuvierina Atlantica, Daniel Mead

USF Tampa Graduate Theses and Dissertations

Evolution over billions of years has led to unique animals of all types. The tiny sea butterfly is one that remains mostly anonymous because of its size and low place on the food chain, but it is a swimming creature that when examined closely reveals a surprise. Shockingly, it has a swimming motion nearly identical to small insects flying at intermediate Reynolds numbers, referred to as the clap-and-fling. The centimeter long pteropod flapping briskly at 5Hz escapes attention with its size and speed. Modeling the clap-and-fling motion of the sea butterfly at a larger scale allows the benefits and uniqueness …

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. …

Investigating The Causes Of Lake Level Variability On A Modern Carbonate Platform, Natalie M. Salazar

USF Tampa Graduate Theses and Dissertations

Lakes on carbonate islands are known to reduce freshwater lens volumes and alter freshwater lens distribution; however, the magnitude and controlling factors between lake and freshwater lens interactions remain poorly understood. Since freshwater lenses are thin and can be fragmented by lakes in small carbonate islands, it is important to understand the magnitude of exchange between lakes and the freshwater lens to understand potential groundwater depletion. This study utilized high temporal resolution water levels and meteorological data to quantify monthly water budgets for seven lakes on San Salvador Island, The Bahamas. The monthly water budgets accounted for rainfall, potential evaporation, …

Interrelationships Among Local Values Of Wet Bulb Globe Temperature, Heat Index, And Adjusted Temperature, Andrea Giraldo

USF Tampa Graduate Theses and Dissertations

Occupational heat stress significantly affects outdoor workers who face challenges due to increased heat exposure. Because of the prevalence of heat illness, it is important to measure heat stress for outdoor workers. Monitoring occupational heat stress most often relies on the Wet Bulb Globe Temperature (WBGT) measure. Heat Index (HI) is a widely used measure to account for air temperature and humidity. Adjusted Temperature (Tadj) considers air temperature, humidity and estimates radiant heat. There is interest in predicting WBGT from HI and HI from WBGT. This study builds on previous USF research by Bernard and Iheanacho and Irvin to evaluate …

A Differentially Methylated Region Analysis Between Three Disease States Of Major Depressive Disorder In Primarily African-American Cohorts, Lanie Katelynn Mullins

USF Tampa Graduate Theses and Dissertations

Major depressive disorder (MDD) is a common and debilitating disorder that affects millions of people worldwide. MDD is a multifactorial disease with no established mechanism currently able to explain all facets of the disease or its etiology. Feedback loop mechanisms have been posited to explain the interactions of psychological and physical components of the disease etiology. Epigenetics, specifically DNA-methylation analyses, can shed light on the interaction between the within-person environment resulting from MDD symptomology, the persistence of the disease, and factors influencing remission. Here, a differentially methylated region analysis was conducted using samples derived from whole blood to interrogate the …

Development Of A Plant Growth And Health Monitoring System Using Imaging And Sensor Array Information For Cubesat Applications, Kat-Kim Phan

USF Tampa Graduate Theses and Dissertations

Space exploration has been a topic of interest in the scientific community, such as the planned missions to Mars. To accomplish this would require being able to provide astronauts with a steady supply of food beyond freeze-dried foods leading to the need to grow food in space. Although this is a topic still being investigated, the CubeSat platform opens the possibility of carrying out studies on plant growth under more strenuous space conditions unlike that in the International Space Station (ISS). Developing a plant-focused mission for a CubeSat, though, entails being able to develop a system to sustain plant life …

On The Possibility Of Secular Morality, Zachary R. Alonso

USF Tampa Graduate Theses and Dissertations

Is something like a transcendent God necessary to have a coherent moral system, or at the very least, necessary for one to have personal ethical guidelines to live by that are not entirely subjective? This paper explores the claims of two Christian thinkers, David Bentley Hart and D. C. Schindler, as well as some alternatives to their thinking in the ethics of Alasdair MacIntyre and Jeffrey Stout. Hart and Schindler portray society as downcast, riddled with moral decay, and the only solution to this decay is to turn toward God, thereby recognizing a hierarchical, cosmological worldview. While MacIntyre believes that …

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 …

Fraud Brainstorming In An Era Of Remote Work: The Effects Of Alternative Video Conferencing Configurations And Audit Team Hierarchy, Ahmed Shuaib

USF Tampa Graduate Theses and Dissertations

In 2020, the coronavirus pandemic prompted governments to respond by implementing social distancing regulations and travel bans. Although these actions helped mitigate the spread of the virus, they also created unique challenges for businesses and their employees. Firms transitioned quickly from face-to-face work settings to remote work arrangements using video conferencing technologies (VCT). These technologies enable video calls with or without instant messaging (chat) to facilitate information exchange. For audit firms, group tasks that were previously performed in face-to-face settings had to be performed using VCT. A commonly performed group task in auditing is fraud brainstorming, which auditing standards require …

From The Patient’S Perspective: Understanding The Colorectal Cancer Patient Experience Portrayed In Edutainment Television, Allison M. Fisher

USF Tampa Graduate Theses and Dissertations

This study qualitatively examined how edutainment television portrayed the colorectal cancer (CRC) patient experience, and whether it reflects the real-life CRC patient experience. This was done by first facilitating a textual analysis of edutainment television episodes from popular medical dramas and the docuseries Country Ever After. Interviews with real-life CRC patients were then facilitated to gather perspectives on whether edutainment television’s depictions were reflective of their experiences. This study utilized cultivation theory to identify whether edutainment television reinforces stigmas about the CRC patient experience. Additionally, uses and gratifications theory was implemented to investigate how CRC patients interact with media platforms …

Temporospatial Deep Learning Strategies For Prediction Of Disease Progression In Radiology, John D. Mayfield

USF Tampa Graduate Theses and Dissertations

While the fields of machine learning and medicine are deeply rooted in axiomatic scientific principles, there is an element of art that makes the practice imperfect, yet innately human. As the two fields have seen the greatest overlap in their collective history, there remains a chasm between them in terms of practical translation for the patients who desire and deserve personalized medicine. As presented in this dissertation, I and my collaborators have contributed to the groundwork for future exploration of predicting disease progression by identifying signals within sequential medical imaging to provide a temporospatial relationship upon which we can make …

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 …

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 …

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 …