Digital Commons Network^™

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 …

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 …

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; …

Ultrafast Magneto-Optic Study Of Exchange Interactions In Magnetic Materials, Hengzhou Liu

USF Tampa Graduate Theses and Dissertations

Magneto-optic Kerr Effect (MOKE) is a very important method to investigate the magnetization ofmaterials with the polarization and intensity of light reflected from a sample. Both dynamic and static MOKE are performed to study the magnetic properties of thin films and bulk crystals in this research. For the static MOKE measurement, a solid state laser was used to probe the samples to generate a hysteresis loop by changing the external field from -0.8 T to 0.8 T. The magnet can be placed at an angle between 0 to 20 degree with respect to the sample surface to probe different sample …

Regulation Of The Heat Shock Response Via Lysine Acetyltransferase Cbp-1 And In Neurodegenerative Disease In Caenorhabditis Elegans, Lindsey N. Barrett

USF Tampa Graduate Theses and Dissertations

The decline of proteostasis is a hallmark of aging that is, in part, affected by the dysregulation of the heat shock response (HSR), a highly conserved cellular response to proteotoxic stress in the cell. The heat shock transcription factor HSF-1 is well-studied as a key regulator of proteostasis, but mechanisms that could be used to modulate HSF-1 function to enhance proteostasis during aging are largely unknown. In this study, we examined lysine acetyltransferase regulation of the HSR and HSF-1 in C. elegans. We performed an RNA interference screen of lysine acetyltransferases and examined mRNA expression of the heat-shock inducible gene …

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. …

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 …

English Language Learners’ Perceptions Of Employing A Social Annotation Tool To Promote Peer Support, Engagement With The Text, And Reading Comprehension, Inanc Karagoz

USF Tampa Graduate Theses and Dissertations

International students in English-medium higher-education programs read various texts from different fields in English throughout their studies. Many students find reading for academic purposes less enjoyable which, in turn, has a negative effect on their engagement and reading comprehension. Collaboration through social annotation tools may transform the process of meaning-making into a social activity. The extant literature focuses on its impact on comprehension and learners’ attitudes. To add to the literature and understand remote learners’ experiences, I explored international students’ perceptions of employing a social annotation tool on promoting their peer interactions, reading engagement, and comprehension in a hybrid EAP …

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 …

The Making Of Microcelebrities On Douyin: Multimodal Design And Online Identities In Informal English Instruction Videos, Yaqian Jiang

USF Tampa Graduate Theses and Dissertations

As the online education market continues to expand globally, teaching and advertising have converged in digital spaces in unprecedented ways. Driven by the attention economy, independent online educators must compete to cultivate a consumer base. To attract followers, they must engage not only in online teaching activities but also in self-branding practices. This dissertation explores how microcelebrities who teach English on Douyin utilize linguistic and other semiotic resources for both instructional and self-branding purposes.

To address this topic, I collected 84 informal English language instruction videos created by 14 different Douyin microcelebrities. Taking a social semiotic approach to multimodal discourse …

Florida Punks: Punk, Performance, And Community At Gainesville’S Fest, Michael Anthony Mcdowell Ii

USF Tampa Graduate Theses and Dissertations

Fest is an annual punk rock music festival held in Gainesville, Florida. At Fest, participants engage in aesthetic creation and participation, negotiate identities, participate in political discourse, and forge communities. In this dissertation, I use theories of performance, framing, and culture to understand Fest. To do so, I theorize Fest using three approaches to performance: performance as an object of study, performance as a metaphor for everyday life and identity, and performance as a method of inquiry. Using these three approaches to performance, I understand Fest as performance, as a site that permits and constrains performances of self, identity, and …

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 …

Using Movie Clips To Understand Vivid-Phrasal Idioms’ Meanings, Rasha Salem S. Alghamdi

USF Tampa Graduate Theses and Dissertations

With increased use of educational technology in second language acquisition, idiomatic language instruction has seen an increase in the use of educational technology as an instructional method. Second/foreign language (L2) idioms teaching methods have extended their pedagogical approaches to employ Computer Assisted language Learning (CALL) and/or Mobile Assisted Language Learning (MALL) educational technologies such as games, online platforms, images, videos, movies, social media, and augmented reality. Recent Second Language Acquisition (SLA) research has begun to focus on the effect(s) different types of videos (YouTube, advertisements, TV shows, full movies, and movie clips) can have on learning a second language, English …

To Thine Own Self Be True, Renee A. O'Brien

USF Tampa Graduate Theses and Dissertations

The purpose of this self-study was to take an in-depth look at the development of the pedagogy of one teacher, myself, and to describe and explain how this style of teaching developed both from early familial influences and through experiences I have had throughout my career. This study focused specifically on my use of storytelling in the classroom and how my lessons, community building, language development, and maintaining student engagement are based on the culmination of those experiences. This study also looked at the impact these factors had on my persistence as a teacher and how using this type of …

Explainable And Cooperative Autonomy Across Networks Of Distributed Systems, Peter Joseph Jorgensen

USF Tampa Graduate Theses and Dissertations

Large networks of complex systems-of-systems are commonplace and evermore present in both mundane and extraordinary facets of human existence. From the exponential growth of connectivity via the internet and other information networks, to the miniaturization of computers and sensors, to cross-domain sensor and communication networks, these networks of distributed systems-of-systems (NDSS) present incredible benefits and challenges. Autonomy is perhaps the most important and most difficult to achieve enabling technology for efficient performance of the NDSS. Giving each individual agent in a network the ability to manage its internal state in dynamic operating environments and in pursuit of multiple complex and …

Nanophotonics And Nanomaterials For Microbial Inactivation, Sharad Ambardar

USF Tampa Graduate Theses and Dissertations

The study of light-matter interaction at nanoscale, also termed as nanophotonics, has gained vast attention due to its multidisciplinary application in the field of chemical engineering for the synthesis of nanomaterials, in the field of physics to study non-linear optical processes and optical phenomena in nanocavities and in the field of biology, biomedicine to study and develop novel optical nanoprobes for diagnostics, nanobiosensing and near-field imaging.

We studied UV-irradiation-based inactivation of SARS-CoV-2 and other respiratory viruses. In this work, we fabricated a device comprising a pulsed nanosecond 266 nm UV laser coupled to an integrating cavity (LIC), composed of a …

Organizing Economies: Narrative Sensemaking And Communciative Resilience During Economic Disruption, Timothy Betts

USF Tampa Graduate Theses and Dissertations

This dissertation unites organizational communication, and economic theory to understand how individuals make sense of economic crises, imbed power and logic in those understandings, and construct new economic realities in the aftermath of crisis. Contra economic orthodoxy, this project conceives of economy and economics as a social construct. As a social construct, individuals organize economy and economics through discourse, make sense of through narrative, and rebuild through communication. This dissertation combines different theoretical perspectives—actor-network theory, antenarrative organization theory, and the communication theory of resilience—to recenter social scientific accounts of economic reality around communication, story, and power.

Specifically, I focus on …

Development And Analysis Of Green Pathways For Biphasic Extraction At High Pressure, Kyle L. Cogswell

USF Tampa Graduate Theses and Dissertations

Technological advancements over the last century have allowed for advancements not only in science and engineering but medicine as well. The use of supercritical fluids for processing continues today after its initial boom in the latter part of the last century; often being paired with co-solvents to extend the range of use for this technique. Supercritical fluid extraction may be paired with pressurized warm water extraction to yield a new intensified process for biphasic extractions that improves efficiency and reduces waste. This combination may be used to replace sequential extraction processes or supercritical extraction processes that make use of organic …

An Exploratory Investigation Of Student-Level Factors And Perceptions Of Safety In Secondary Schools Implementing Swpbis, Nicholas L. Scheel

USF Tampa Graduate Theses and Dissertations

Past and recent violent incidents (e.g., shootings, bullying) within schools in the United States have caused great concern among the public about the safety of students. Although research has shed light upon the positive and negative impacts of current crisis prevention initiatives (e.g., federal and state legislation, security cameras, trauma-informed practices) on student perceptions of safety, the breadth of literature focused on the impact multitiered systems of supports (i.e., school-wide positive behavior supports and interventions [SWPBIS]) have on student perceptions of safety is limited (Nowicki, 2020). This exploratory investigation utilized a multivariate analysis of variance to examine perceptions of safety …

An Analysis Of International Soccer Fans’ Knowledge Of Qatar, Perceptions Of Qatar’S Country Image, And Intention To Support The 2022 Fifa World Cup, Taleb Al-Adbah

USF Tampa Graduate Theses and Dissertations

International sporting competitions have become an essential tool for countries to promote a favorable image of themselves around the world. This study focuses on the FIFA 2022 World Cup, which will be hosted by Qatar - the first Arab country ever to host the event. Since 2010, when Qatar was awarded the FIFA 2022 World Cup, several studies have shown that soccer fans are hesitant to attend matches in Qatar. This study investigates the correlations between soccer fans’ level of knowledge, soccer fans’ perception of Qatar using a 4D model of country image, and soccer fans’ behavioral intention to support …

Evaluation Of Aluminum Dissolution, Current Density, And Pitting Patterns During Electrocoagulation, Monica Castro Carias

USF Tampa Graduate Theses and Dissertations

Electrocoagulation (EC) is a sustainable water treatment process involving the generation of coagulants on-site through the application of a voltage on metal (usually aluminum or iron alloys). The factors that impact EC system performance have been well researched, however further research is needed on the factors that impact anodic dissolution of aluminum electrodes, especially when the technology is transferred to full-scale applications. Electrode fouling is one of the factors that can impact dissolution of the anode during EC due to the formation of a protective oxide/hydroxide layer on the electrode surface. Previous studies have addressed electrode fouling by reversing polarity, …

The Tesla Brake Failure Protestor Scandal: A Case Study Of Situational Crisis Communication Theory On Chinese Media, Jiajun Liu

USF Tampa Graduate Theses and Dissertations

The aim of this thesis is to test how Tesla handles a protestor in Tesla’s booth in Shanghai. This thesis evaluated the effectiveness and acceptance of Tesla’s public relations and crisis communication through analyzing domestic Chinese official news articles and consumers’ attitude on China’s most used social media platform, Weibo. The electric vehicle industry is relatively a newer industry than traditional automobile manufacturing industries. Therefore, the immaturity of the industry could bring different types of crises, and traditional vehicle problems could also be the problems of electric vehicles, such as engine failure, brake failure, safety concerns and security threats, and …

Examining The Relationship Between Racial Respect Among Black Early Childhood Professionals And Their Perceptions Of Black Children, Kayla Nembhard

USF Tampa Graduate Theses and Dissertations

Black children are exposed to the highest rates of negative teacher perceptions and punitive consequences. Healthy People 2020 acknowledges the significance of the first five years of child development and the various factors that promote or hinder health outcomes during this time. Furthermore, it highlights the significance of quality relationships between children and their caregivers, including their ECE teachers. Overall, Black children tend to fare better academically when they are able to engage with Black educators and other ECE professionals. However, there is recent evidence Black educators in ECE settings, specifically, also uphold racialized negative perceptions of Black students that …

“Even If You Have Food In Your House, It Will Not Taste Sweet”: Central African Refugees’ Experiences Of Cultural Food Insecurity And Other Overlapping Insecurities In Tampa, Florida, Shaye Soifoine

USF Tampa Graduate Theses and Dissertations

In the United States, resettled African refugee populations experience food insecurity at rates up to seven times higher than those of the general population. In Tampa, Florida, anthropologists have documented high levels of food insecurity among Central African refugee households since members of this population began to be resettled in the area in 2016. Utilizing an intersectional lens and drawing upon theoretical concepts such as cultural food security, navigational capital, and social reproduction, this thesis examines how Central African refugees, particularly women, experience food (in)security and other overlapping forms of (in)security as they integrate into US systems of structural inequality …

The Use Of Social Media By Leaders In Times Of Crisis: 2020–21 United States Election Protests, Cagdas Yuksel

USF Tampa Graduate Theses and Dissertations

This study investigated the Facebook posts made by presidential candidates Donald J. Trump and Joe Biden during the crisis that emerged after 2020 presidential election. The purpose of the study is to gain a better understanding of how crisis response is enacted via social media. This study's conceptual basis is the Social Crisis Communication Theory. The crisis, which is the focus of the study, was limited to the post-election process, which started with the allegations of Donald Trump alleged fraud in the election, after the 3 November 2020 US presidential elections, and especially to the process that resulted in the …

Afro-Latinx And Afro-Latin Americans In The United States: Examining Ethnic And Racial Experiences In Higher Education, Glenda Maria Vaillant Cruz

USF Tampa Graduate Theses and Dissertations

Education research in the United States has vastly excluded Afro-Latinx and Afro-Latin American college students from the canon. Afro-Latinx and Afro-Latin American college students are presented with unique challenges and opportunities for identity exploration and development at the university level. As Schwartz, Kurtines, and Montgomery argue, higher education institutions extend emerging adulthood or the period in which individuals explore identities and develop a sense of self (Shwartz, Kurtines, and Montgomery 2005). Education research in the United States has historically centered around US-based racial formation, suggesting that Blackness and Latinness are mutually exclusive, what researchers Christopher Busey and Carolyn Silva refer …

Antibiotic-Resistant Escherichia Coli And EnterococcusSpp. In Sand And Water At Tampa Bay Beaches, Jennifer K. Sabater

USF Tampa Graduate Theses and Dissertations

As antibiotic resistance in the environment continues to rise there is an increased concern that infections may become harder to treat as bacteria acquire genes for multidrug resistance. Recreational beach waters in the Tampa Bay area are routinely monitored by the Florida Department of Environmental Protection for the presence of fecal indicator bacteria (FIB) such as Escherichia coli and enterococci. Exceedances of beach action values (BAV) 235 CFU/100 mL (E. coli) and 70 CFU/100 mL (enterococci) indicate the presence of fecal contamination which is associated with an increased risk of disease for beachgoers. Antibiotic-resistant E. coli and Enterococcus spp. have …

Exploration Of Energy Efficient Computing For Data-Intensive Applications, Md Adnan Zaman

USF Tampa Graduate Theses and Dissertations

The recent surge of data-intensive applications has stretched the performance and energy limit of today’s traditional computing system. The massive amount of data generated by data-intensive applications is not processed at the same speed due to bandwidth mismatch between the faster processing unit and slower memory. Memory access and communication bandwidth can be identified as the primary bottlenecks. Consequently, these two bottlenecks make up most of the total energy consumption. In light of this, we explore energy-efficient computing for data-intensive applications. We examine different aspects of two computing systems, such as in-memory computing and AI-enabled edge computing, more popularly known …

New Developments In Statistical Optimal Designs For Physical And Computer Experiments, Damola M. Akinlana

USF Tampa Graduate Theses and Dissertations

Statistical design of experiments allows for multiple factors influencing a process to be systematically manipulated in an experiment, and their effects on the output of the process to be studied via statistical modeling and analysis. Classical designs offer general nice performance but have limited applications due to restricted design size, region, and randomization structure. Computer generated optimal designs become more popular in recent decades due to the rapid growth in computing power. Most existing work in optimal design of experiments involves designing experiments with optimal performance on a single chosen objective or a single response. However, with the increasing limitation …