Digital Commons Network^™

4d Printing Of Smart Hydrogel Scaffold To Program Neural Stem Cell Differentiation, Omar Khater

USF Tampa Graduate Theses and Dissertations

Injuries like Traumatic brain injuries (TBI) and Spinal cord injuries (CSI) areconsidered one of the biggest challenges in the medical sector as there is no specific treatment for these injuries and the medical intervention on these injuries is restricted to reducing the pain and removing the damaged human parts. One of the helpful and most effective treatment methods for these injuries involve neural tissue regeneration in the area of the injury. The main issue when trying to treat such injuries is that neural tissues are often unable to regenerate by themselves and require outer human intervention to differentiate. Biomedical scaffolds …

Elemental Sulfur And Metal Sulfide Minerals For Autotrophic Denitrification: Applications To Aquaculture, Groundwater Treatment, And Domestic Wastewater Treatment, Erica Amah Dasi

USF Tampa Graduate Theses and Dissertations

Nutrient pollution of waterways, from excess N and P, is a global concern that results in harmful impacts the environment, human health, and aquatic animals. This dissertation harnesses sulfur autotrophic denitrification to remove nutrients from groundwater, domestic wastewater, and wastewaters produced from marine recirculating aquaculture systems (RAS). Part 1 evaluates the denitrification performance of woodchips and elemental sulfur in cyclic denitrification filters (WS-CDFs) integrated into marine RAS operated under saline conditions. Part 2 investigates the use of metal sulfide minerals, with and without oyster shells, for supporting nutrient removal from groundwater in batch reactors. Part 3 assesses …

Essays On Opioid Related Issues, Minglu Sun

USF Tampa Graduate Theses and Dissertations

Strong empirical evidence points towards a significantly higher prevalence of opioid consumption among people receiving disability benefits (DB) than in the general population of the United States. However, no previous research established a causal relationship between the decision to award DB to applicants and their subsequent opioid use. We aim to contribute towards filling this gap. There are channels through which awarding DB may both increase and depress opioid consumption, and thus, ex-ante, the sign of a potential causal relationship is ambiguous. To correct for the treatment endogeneity, since an individual’s age at the time of the decision on an …

Healthcare Iot System And Network Design, Halil Ibrahim Deniz

USF Tampa Graduate Theses and Dissertations

The developing IoT concept offers many opportunities to service providers in the medical field. However, the functionality of the developed systems is increasing day by day, and it brings many different problems. One of the most important problems is the transmission of biomedical data of real-time monitoring systems to the medical server with the least delay. Network architectures are changing to meet the changing needs of densely connected devices, and “computing at the edge” is the new architectural approach emerging in IoT networks. This architecture is more dynamic than computation in the cloud because it enables data processing at each …

Advising Latinx Students For Postsecondary Career And Technical Education (Cte): A Qualitative Study Of High School Counselors In Florida, Adriana C. Magana

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to gather detailed descriptions of information, resources, and interventions that school counselors use to inform and advise Latinx students of postsecondary CTE options. A qualitative study with semi-structured interviews was conducted to understand how Florida school counselors advise Latinx students for postsecondary Career and Technical Education (CTE) options. A three-prong conceptual framework was used, drawing from Bourdieu’s (1986) Theory of Cultural Capital, career development theories, and the American School Counselor Association’s (ASCA) National Model.

Ten school counselors working in public high schools in Florida participated in semi-structured interviews for this study. Altogether, the study’s …

Inflammatory Bowel Disease & Social (In)Visibility: An Interpretive Study Of Food Choice, Self-Blame And Coping In Women Living With Ibd, Jessica N. Lolli

USF Tampa Graduate Theses and Dissertations

This dissertation is an interpretive project that uses autoethnography and qualitative interview methods to understand the role Inflammatory Bowel Disease (IBD) plays in women’s quality of life and interpersonal relationships. It focuses on the impacts on patients of dietary changes and how food choice serves to make this ordinarily “invisible” illness visible to others, leading to unwanted exposure. Using Erving Goffman’s stigma theory and its extensions in studies of chronic illness, I demonstrate that IBD is characterized by layers of stigma because it creates situations in which patients are forced to disclose their illness even if they are not ready …

Revisiting ‘Our’ Place On Campus: A Queer(Ed) And In-Depth Interview Study Of Qt Resource Professionals In Higher Education, Kristopher Andrew Oliveira

USF Tampa Graduate Theses and Dissertations

This dissertation offers an interactional, structural, and theoretical analysis of the experiences of Queer and Trans (QT) resource professionals in higher education. Data from the empirical chapters draws on 41 in-depth semi-structured interviews that conducted with QT resource professionals from 19 different states across the United States. The interactional and structural chapters reveal tensions between institutional commitments to doing equity work on college campuses and the neoliberal and institutional barriers that QT resource professionals experience in promoting and fostering institutional equity on campus. The third substantive chapter offers a queer of color critique – through Muñoz’s (2019) notion of queer …

A Tale Of Two Art Programs: Art & Identity For People With Disabilities, Melinda Leigh Maconi

USF Tampa Graduate Theses and Dissertations

This dissertation explores the relationship between disability and art in individual and organizational narratives told in the context of art programs that are designed to provide meaningful and inclusive experiences for people with disabilities outside of “art therapy.” Findings of narrative and thematic analysis of the websites of two non-profit disability centered arts education organizations, autobiographical sketches of disabled artists, and in-depth family history interviews with parents of people with disabilities suggest that the clear cut boxes created by scholarly and social movements narratives of disability do not map neatly onto the lived experiences of people with disabilities, their families, …

The Effects Of Temperature And Oxygen Availability On Aerobic Performance In Three Coastal Shark Species; Squalus Acanthias, Carcharhinus Limbatus, And Carcharhinus Leucas, Alyssa M. Andres

USF Tampa Graduate Theses and Dissertations

Anthropogenically driven climate changes are altering marine habitats globally. Rising sea surface temperatures and coastal eutrophication, arising from global warming and coastal nutrient loading, have resulted in progressive ocean deoxygenation. This may restrict available habitat of marine organisms as studies suggest that the balance between metabolic oxygen demand and environmental supply plays an important role in limiting viable habitat and species fitness. As ectothermic predators, with temperature-dependent metabolism and high metabolic demands, coastal shark species may be susceptible to shifts in ocean temperature and oxygen. Such environmental changes may alter metabolic performance and ultimately success and survival within shark habitat. …

Deep Learning And Feature Engineering For Human Activity Recognition: Exploiting Novel Rich Learning Representations And Sub-Transfer Learning To Boost Practical Performance, Ria Kanjilal

USF Tampa Graduate Theses and Dissertations

A significant gap exists in our knowledge of how domain-specific feature extraction compares to unsupervised feature learning in the latent space of a deep neural network for a range of temporal applications including human activity recognition. This dissertation aims to address this gap specifically for human activity recognition using acceleration data. To ensure reproducibility, we use two publicly available datasets, UniMiB-SHAR and ExtraSensory, with a well-established history in the human activity recognition literature. We methodically analyze the performance of 64 different combinations of i) learning representations (in the form of raw temporal data or extracted features), ii) traditional and modern …

Juvenile Homicide Offenders: A Life-Course Perspective, Norair Khachatryan

USF Tampa Graduate Theses and Dissertations

Murder by offenders under the age of 18 is a cause for public concern, despite the overall decrease in the rate of juvenile-perpetrated homicide since 1994. Due to several rulings by the U.S. Supreme Court (i.e., Miller v. Alabama, 2012), the likelihood that convicted juvenile homicide offenders (JHOs) will be released from prison has increased. Accordingly, it is important to examine these offenders’ long-term readjustment to society after their release. Using a mixed-method approach, the present study was designed to explore the factors that influence whether JHOs reoffend and their reoffending patterns, over a period of approximately 35 years. Another …

Color Defined: An Autoethnographic Exploration Of How Race, Trauma, Gun Violence, And Grief Connect For A Black Mother, Kokita Dirton Wilson

USF Tampa Graduate Theses and Dissertations

Black mothers are disproportionately affected by fatal shootings and the need for making meaning and finding purpose remains overlooked as a vital component of building resilience in their grief journey. The purpose of this study was to (a) reflect on being a Black mother of a fatal shooting victim; (b) understand the grief and healing process that follows; (c) connect my experiences to those within the larger Black grief community, and (d) by example, help other grieving mothers navigate through their grief struggles. I used two research questions: 1) How can I learn about my grief process by using personal …

Zooplankton Biodiversity In The Northeast Gulf Of Mexico And On The West Florida Shelf From 2005 - 2014, Megan Ferguson

USF Tampa Graduate Theses and Dissertations

Zooplankton abundance and biodiversity was measured in the northeast Gulf of Mexico (NEGoM) and on the West Florida Shelf. Bongo net samples were collected between May 2005 to September 2009 through the SEAMAP program, and between July 2010 to August 2014 through the C-IMAGE program. Calanoid copepods were the most abundant zooplankton group in most of the samples collected, but ostracods, larvaceans, and chaetognaths were also abundant. Shannon and Inverse Simpson indices were calculated for all zooplankton samples and generally showed similar trends, but only Shannon indices were used for statistical analyses. In the winter and spring there were significant …

A Bathroom Break For Teachers: An Institutional Ethnotheatrical Inquiry, Jonathan M. Coker

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to examine the teacher bathroom dilemma, a term I coined to describe teachers not having adequate access to the bathroom during their workdays. While this issue is widely known by those in the profession, only a handful of articles have been written on this topic. The teacher bathroom dilemma is part of a litany of working conditions that have intensified due to the neoliberal turn in education, forcing teachers to perform precarious actions that endanger their physical and psychological health. This dissertation explored how the teacher bathroom dilemma impacted teachers’ work and personal lives. …

Examining The Social Validity Of Parent Training: Post-Participation Parent Perceptions And Reflections Of Group Triple P, Nycole C. Kauk

USF Tampa Graduate Theses and Dissertations

Child behavior problems are highly prevalent and impactful on the child and their family system, bringing both short-term and long-term consequences (Sanders, 2012). Many risk factors for child behavior problems are modifiable via the use of Behavioral Family Interventions, such as behavioral parent training programs (Kazdin, 1991). Behavioral Family Interventions (BFI) modify factors within the family system to minimize modifiable risk factors and engineer protective factors to produce behavior change (Kazdin, 1991). While several manualized behavioral parenting interventions exist, the Triple P parenting program is one of the most researched and effective programs used internationally, particularly the Level 4 package; …

Aqueous Humor Dynamics And Compound Action Potentials In The Anesthetized And Conscious Freely Moving Rat, Youssef Mohamed

USF Tampa Graduate Theses and Dissertations

Vision is dependent on the proper functioning of many intricate components of the eye. Aqueous humor dynamics function to keep the eye inflated at the right pressures and nourish avascular tissue in the eye while properties of the corneoscleral shell dictate how dynamic changes in volume and pressure affect tissue at the optic nerve head. Retinal ganglion cells exit the globe at the optic nerve head and carry all of the visual information to the brain for perception of visual stimulus. In this dissertation, we aim to present a lumped parameter model of the eye that can accurately describe the …

A Protein-Based Therapeutic Combination For The Treatment Of Hard-To-Heal Wounds, Graham L. Strauss

USF Tampa Graduate Theses and Dissertations

Chronic wounds present many clinical challenges in relation to the successful treatment and closure of the damaged tissue. Most current treatment methods focused on one or two aspects to drive wound closure, while most chronic wounds are multifactorial environments with many of those dependencies relying on the termination of one another to effectively gain tissue construction, closure, and full skin thickness and composition. Natural wound healing processes allude to potential biologics that can impede the chronic breakdown of tissue, while restoring deposition of new tissue, and effectively leading to a healed wound. Proteases secreted by the body’s immune system lay …

Approach And Avoidance Food Craving: A Dual Cue Reactivity Investigation, Christina Lee Verzijl

USF Tampa Graduate Theses and Dissertations

Recent research suggests that food craving is a motivational process underlying the full spectrum of disordered eating behaviors. The ambivalence model of craving, originally applied to substance use craving, provides a framework through which the push-pull motivational process of food craving and its relation to the range of disordered eating behaviors can be understood. In this perspective, food craving is a multi-dimensional motivational process that involves an individual’s competing desires to both consume (i.e., approach) and not consume (i.e., avoid) certain food. Building on previous literature, the current study tested whether behavioral measures of approach and avoidance food craving (i.e., …

Cortical Organization For Encoding And Perception Of Auditory Spectral And Temporal Cues In Younger And Older Adults, Jitpakorn Pichaitanaporn

USF Tampa Graduate Theses and Dissertations

Perception of spectral and temporal acoustic cues is fundamental to most auditory tasks including speech discrimination, sound localization, and segregation of speech in background competition. Although neuroimaging studies have shown hemispheric asymmetry in processing spectral and temporal features, where right hemisphere is dominant for spectral processing while left hemisphere is dominant for temporal processing, the effects of aging on hemispheric asymmetry and associated auditory perceptual consequences have not been well studied. Neurocognitive aging studies support that due to limited neural resources, older adults may use different neural circuits than younger adults to maintain perceptual and cognitive performance during the same …

First-Generation Female Doctoral Students’ Perceptions Of The Doctoral Experience, Nancy Carol Carr

USF Tampa Graduate Theses and Dissertations

The purpose of my study was to understand the perceptions of first-generation female doctoral students (FGFDS) and what factors may impact first-generation female doctoral students’ completion of their doctoral program. As the researcher, I collected data through: (a) interviews, (b) participant generated photographs, (c) the group meeting, and (d) the researcher’s personal reflexive journal. Two research questions guided this exploratory qualitative study: In what ways do first-generation female doctoral students in the College of Education perceive their experiences impact their progress during their doctoral program at a large research university in Central Florida?; and what factors do first-generation female doctoral …

Modified Biosand Filtration Using Aluminum Hydroxide Filter Media To Enhance Fluoride Removal, Joshelyn Guimaray

USF Tampa Graduate Theses and Dissertations

There are over 20 countries whose citizens consume groundwater containing high levels of fluoride, including Nigeria, Mexico, India, China, and Ghana, which all have major health crises when it comes to the safety of their drinking water. Minerals like fluorite contain fluoride which is often found in groundwater aquifers. The minerals release fluoride into the groundwater. Per the World Health Organization (WHO) standard, the maximum contaminant limit for fluoride consumption should be less than 1.5 mg/L. Chronic exposure of elevated levels of fluoride can cause people to suffer debilitating health effects, such as dental and skeletal fluorosis. Dental fluorosis causes …

A Convergent Approach To Aqueous Lead (Pb) Mitigation Of A Supplemental Self-Supply Shallow Groundwater Source Accessed By Handpumps In Madagascar, Adaline Marie Buerck

USF Tampa Graduate Theses and Dissertations

The World Health Organization (WHO) has consistently listed lead (Pb) as one of the ten chemicals of major public health concern. Though the toxic nature of lead has been known since the 20th century it is still utilized in a wide variety of products due to its favorable properties. Exposure to lead still accounts for approximately 900,000 deaths annually and disproportionately impacts those in low- and middle-income countries (LMIC) due to a variety of reasons such as poverty, malnutrition, and lack of knowledge on the toxic nature of lead. Lead exposure routes include air, soil, dust, diet, and water. Though …

An Assessment Of Transgender And Gender Non-Conforming Individuals Gender Affirming Health Care Practices In The Greater Tampa Bay, Sara J. Berumen

USF Tampa Graduate Theses and Dissertations

The LGBTQ+ community faces discrimination and oppression throughout U.S. history and today. In particular, transgender and gender nonconforming (TGNC) individuals may face a variety of challenges when seeking biomedical health care tied to hostility, discomfort, lack of training, stigma, and denial of care at clinics or hospitals (Baker & Beagan, 2014; Lykens et al., 2018; Safer, 2021). TGNC individuals face medical gatekeeping when trying to access medical gender-affirming care (Aizura, 2018; Malatino, 2020). The research project aims to investigate these individuals' healthcare experiences, and access to both medicalized and nonmedicalized gender affirming health care practices.

In order to conduct this …

Ethnographic Insight On The Construct Of Blackness: Heritage, ‘Home,’ Community, And Reality In Carver City-Lincoln Gardens, Tampa, Florida, 1928-2021, Lisa Katina Armstrong

USF Tampa Graduate Theses and Dissertations

This study is a community-engaged investigation of the experiences and impacts of Black people living in the segregated space called “Carver City-Lincoln Gardens.” This study aims to advance scholarly and mainstream conversations about one racialized community; it is a significant space because the Lincoln Gardens Area was explicitly designated by the Department of Defense as a residential space for Black veterans after World War II to purchase homes. By exploring this housing arrangement through an anthropological lens, the findings indicate that a mixed-method, collaborative ethnography reveals nuances that might be glossed over when communities are racialized. This study also seeks …

Population Genomics Of The Giant Caribbean Sea Anemone Condylactis Gigantea (Anthozoa: Actiniidae) In Florida And Across The Caribbean, Nancy E. Sheridan

USF Tampa Graduate Theses and Dissertations

The giant Caribbean sea anemone Condylactis gigantea is a long-lived, conspicuous, and phenotypically diverse species native to the western Atlantic Ocean (from Bermuda to southeast Brazil), Caribbean Sea, and southeastern Gulf of Mexico. This sea anemone is an important benthic community member that provides habitat to numerous species, including cleaner shrimp. This relationship makes these animals desirable to aquarists for both enjoyment and the service provided by the shrimp for the overall health of an aquarium, and which is why they are sought.

The extraction of about 3.3 million C. gigantea individuals in Florida over a 23-year period for the …

Assessing The Human-Health Risk Of Exposure To Pathogens From Beach Sands, Javier Federico Gallard-Góngora

USF Tampa Graduate Theses and Dissertations

Fecal contamination at recreational beaches impacts the health of beachgoers, through the introduction of disease-causing microorganisms, and the well-being of communities dependent on income from recreational beach activities. Beach ecosystems are also impacted by sewage through the introduction of nutrients that can cause abnormal increases in autochthonous microorganisms which can impact the population of larger organisms in the ecosystem. Fecal contamination is introduced into sand via untreated sewage, direct deposition of human feces into sand, runoff, and deposition of animal feces into sand. The introduction of fecal contamination into sand exposes individuals to pathogens (disease causing microorganisms) which can result …

The Integration Of Positive Psychology And Positive Behavioral Interventions & Supports To Improve Minoritized Students' Social, Emotional, And Behavioral Outcomes, Jasmine L. Gray

USF Tampa Graduate Theses and Dissertations

This study aimed to examine the effectiveness of a culturally adapted 9-session group positive psychology intervention with and without an added peer reporting intervention on student levels of social, emotional, and behavioral functioning. Many studies have evaluated either school-wide positive behavioral interventions and supports (SWPBIS) or positive psychology interventions (PPIs) in isolation, but very few studies have examined the extent to which combining these interventions and approaches may promote complete mental health. The Well-Being Promotion Program is a multitarget positive psychology intervention that has been evaluated in both elementary and middle school populations (Roth et al., 2017; Lenz et al., …

Interdisciplinary Communication By Plausible Analogies: The Case Of Buddhism And Artificial Intelligence, Michael Cooper

USF Tampa Graduate Theses and Dissertations

Communicating interdisciplinary information is difficult, even when two fields are ostensibly discussing the same topic. In this work, I’ll discuss the capacity for analogical reasoning to provide a framework for developing novel judgments utilizing similarities in separate domains. I argue that analogies are best modeled after Paul Bartha’s By Parallel Reasoning, and that they can be used to create a Toulmin-style warrant that expresses a generalization. I argue that these comparisons provide insights into interdisciplinary research. In order to demonstrate this concept, I will demonstrate that fruitful comparisons can be made between Buddhism and Artificial Intelligence research.

An Integrated Approach For Dynamic Process Modeling And Optimization Of Wastewater Treatment Facilities, Komal Rathore

USF Tampa Graduate Theses and Dissertations

The subareas of process systems engineering including process modeling, simulation, and optimization are becoming progressively substantial for understanding processes, making decisions, improving efficiency, and complying with stricter environmental and safety legislation. Additionally, the availability of user-friendly flowsheet simulators and computational resources with the current trend of data collection and analysis has allowed for a more accurate representation of complex processes such as wastewater treatment systems. Despite all the progress in the areas of process modeling and simulation, the first-principle mechanistic models for wastewater treatment processes are at best employed during the design stage, and therefore, not used optimally for day-to-day …

Hope 4 Boys: The Impact Of A Youth Diversion Program, Justine C. Connolly

USF Tampa Graduate Theses and Dissertations

The Florida Department of Juvenile Justice (DJJ) is developing programs targeting first-time nonviolent offenders who might benefit from community-based treatment and positive youth development to prevent these individuals from becoming adult criminals. Thus, the DJJ seeks new and innovative ways to prevent juvenile delinquency and reduce recidivism among first-time nonviolent offenders. The present study aimed to evaluate the Hope 4 Boys program, a juvenile diversion program that addresses the academic and social-emotional needs of juvenile delinquents. The study examined how participation in the program is associated with changes in participants’ levels of hope for the future, life satisfaction, and resiliency …