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USF Tampa Graduate Theses and Dissertations

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The Making Of Microcelebrities On Douyin: Multimodal Design And Online Identities In Informal English Instruction Videos, Yaqian Jiang Jun 2022

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 Jun 2022

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 Jun 2022

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 …


A Convergent Approach To Aqueous Lead (Pb) Mitigation Of A Supplemental Self-Supply Shallow Groundwater Source Accessed By Handpumps In Madagascar, Adaline Marie Buerck Jun 2022

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 Integrated Approach For Dynamic Process Modeling And Optimization Of Wastewater Treatment Facilities, Komal Rathore Jun 2022

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 …


Crafting A Scene: The Nexus Of Production And Consumption Of Tampa Bay Craft Beer, Russell L. Edwards Jun 2022

Crafting A Scene: The Nexus Of Production And Consumption Of Tampa Bay Craft Beer, Russell L. Edwards

USF Tampa Graduate Theses and Dissertations

This dissertation explores the construction of a local craft beer scene, from perspectives and behaviors of both producers and consumers. It is situated within the Greater Tampa Bay area, and as such offers an ethnographic account of this phenomenon at a community level. Participant observation across a wide range of spaces and events across several years were combined with semi-structured interviews from 27 consumers and 17 producers in the local area to investigate how the scene is constructed and maintained and what consumers do within it. These ethnographic insights were combined with the results of structured methods, such as: freelisting …


Assessing The Human-Health Risk Of Exposure To Pathogens From Beach Sands, Javier Federico Gallard-Góngora Jun 2022

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 …


Passive Radiative Cooling By Spectrally Selective Nanoparticles In Thick Film Nanocomposites, David Allen Young Jun 2022

Passive Radiative Cooling By Spectrally Selective Nanoparticles In Thick Film Nanocomposites, David Allen Young

USF Tampa Graduate Theses and Dissertations

Passive cooling of buildings is a benefit to society since no energy input is required for space cooling which reduces electricity consumption, fossil fuel burning, and greenhouse gas emissions. When a passive cooling technology radiates heat from the earth through the atmospheric windows to space higher levels of cooling power are possible -- this phenomenon is classified as passive “radiative” cooling. Spectrally selective surface coatings provide radiative cooling to lower surface temperatures by reflecting most solar radiation, while emitting infrared radiation at wavelengths between 8-13 μm through the primary atmospheric window to the cold of space. Multiple applications of radiative …


Interdisciplinary Communication By Plausible Analogies: The Case Of Buddhism And Artificial Intelligence, Michael Cooper Jun 2022

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.


The Experiences Of Black And Hispanic Males Retained Through Florida’S Mandatory Third Grade Retention Law, Sophia Mcmorris Jun 2022

The Experiences Of Black And Hispanic Males Retained Through Florida’S Mandatory Third Grade Retention Law, Sophia Mcmorris

USF Tampa Graduate Theses and Dissertations

There has been a constant argument that if students cannot read by third grad, then they will have an uphill struggle for the rest of their educational journey. Researchers have provided evidence signaling some truth to this claim and efforts have been established to ensure that all students receive high-quality instruction (Tweed, 2001). Many states have struggled with policies on how to correct this problem, and they have been challenged to answer whether students who cannot read proficiently by the third grade should be promoted, or if they should be pertained and provided with intensive interventions before moving on to …


Population Genomics Of The Giant Caribbean Sea Anemone Condylactis Gigantea (Anthozoa: Actiniidae) In Florida And Across The Caribbean, Nancy E. Sheridan Jun 2022

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 …


Explainable And Cooperative Autonomy Across Networks Of Distributed Systems, Peter Joseph Jorgensen Jun 2022

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 Jun 2022

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 Jun 2022

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 …


Multiple Solar Receivers Arrangement For High-Temperature Power Generation And Applications, Diego Jesus Guillen Perez Jun 2022

Multiple Solar Receivers Arrangement For High-Temperature Power Generation And Applications, Diego Jesus Guillen Perez

USF Tampa Graduate Theses and Dissertations

This dissertation presents an investigation of the specification and operation of multiple central solar receivers (CSR) sharing a heliostat field and an analysis of the receiver's thermal performance. A heliostat field was modeled in which different parts of the field aimed at different external or cavity receivers located on the same tower. Optical and thermal performance are analyzed, including the receivers' heat flux, solar thermal efficiency, and annual energy output. Some of the contributions of this research are:

1. Propose a novel configuration for a CSP power generation system using two receivers in a single central tower suitable …


Characterizing And Explaining Prevalence And Factors Associated With Non-Fatal Opioid Overdose In Florida, Jesse M. Bell Jun 2022

Characterizing And Explaining Prevalence And Factors Associated With Non-Fatal Opioid Overdose In Florida, Jesse M. Bell

USF Tampa Graduate Theses and Dissertations

Many factors contribute to the opioid epidemic in Florida, including, but not limited to, physician over prescribing, opioid manufacturer malfeasance (direct marketing to physicians, hospitals, and universities, as well indirect political contributions, and deliberately obfuscating the impact of the addictive properties of their various drugs), and as the epidemic approaches its 25th year, sociodemographic characteristics. This body of work examines three of these. First, because an opioid naïve persons’ typical initial encounter with the drug is through a physician, we sought to shed light on the impact of direct pharmaceutical marketing to physicians. We identified opioid providing physicians from the …


Academic Resource And Social Emotional Advisory Period: Promoting Communities Of Care And An Equitable Learning Environment, Mary Jane Lucas Jun 2022

Academic Resource And Social Emotional Advisory Period: Promoting Communities Of Care And An Equitable Learning Environment, Mary Jane Lucas

USF Tampa Graduate Theses and Dissertations

The purpose of this phenomenological, single case study was to evaluate the innovative programming of an Academic Resource and Social Emotional Learning (AR/SEL) Advisory Period at one large suburban public high school in the southeastern United States. The AR/SEL Advisory Period incorporates academic, mindfulness, and mental health initiatives, in tandem with relationship building tools for adults and students. The AR/SEL Advisory Period aims to provide an equitable learning environment where all students have an opportunity to develop high quality relationships with adult mentors and peers, as well as experience a sense of belongingness and community of care. The question that …


An Exploratory Investigation Of Student-Level Factors And Perceptions Of Safety In Secondary Schools Implementing Swpbis, Nicholas L. Scheel Jun 2022

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 …


Two Essays In Applied Microeconomics: Retirement, Income Inequalities, And Other Economic Indicators Of Health And Life Satisfaction, Zahra Akbari Jun 2022

Two Essays In Applied Microeconomics: Retirement, Income Inequalities, And Other Economic Indicators Of Health And Life Satisfaction, Zahra Akbari

USF Tampa Graduate Theses and Dissertations

The following proposal includes two essays in applied microeconomics. The first essay studied the relationship between income differences among siblings and the health outcomes of the individuals. Health inequalities and the factors associated with them have been a significant interest of health economists. Among those factors that can lead to health differences in adulthood, many studies have studied financial status. There are still many questions about these factors which should be answered in this area, especially about the adulthood income relative to a reference group and how it can be related to differences in adulthood health. The main goal of …


A Descriptive Exploratory Case Study Of University Of Central Riyadh Collaboration With Public Schools In Preparing Teachers, Arwa Alazwari Jun 2022

A Descriptive Exploratory Case Study Of University Of Central Riyadh Collaboration With Public Schools In Preparing Teachers, Arwa Alazwari

USF Tampa Graduate Theses and Dissertations

The purpose of this descriptive exploratory case study is to explore the collaboration between the University of Central Riyadh (UCR) (pseudonym) teacher preparation program and public schools in preparing teachers. This study was framed using the theory of social constructivism. Qualitative methodology was used to collect data by using semi-structured interviews with three university supervisors (USs), three cooperating teachers (CTs), and three preservice teachers (PSTs). All the participants were from the curriculum and instructor department at UCR. The qualitative data were thematically analyzed using NVivo software. This study found that UCR and public schools collaboration was one-directional, meaning the collaboration …


“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 Jun 2022

“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 Jun 2022

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 …


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 Jun 2022

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 Jun 2022

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 Jun 2022

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 Jun 2022

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 …


A Theoretical Framework For Understanding Breast Cancer Survivor's Post-Treatment Lived Experiences In An Educational Program: A Qualitative Data Analysis, Katherine Jinghua Lin Jun 2022

A Theoretical Framework For Understanding Breast Cancer Survivor's Post-Treatment Lived Experiences In An Educational Program: A Qualitative Data Analysis, Katherine Jinghua Lin

USF Tampa Graduate Theses and Dissertations

Breast cancer (BC) is the most prevalent type of cancer among women and the most common cancer diagnosis for all the population in the United States. Early screening and treatment for BC have improved the prognosis for breast cancer survivors (BCSs) and increased survival rate. Current evidence showed insufficient data related to BCSs’ post-treatment symptoms, coping issues, and availability and impact of educational and support programs associated with breast cancer survivorship.

The overall purpose of this qualitative data analysis research project is to explore and identify BCSs’ perceptions (post-treatment) of physical, cognitive, and psychological symptoms experienced, as well as perceptions …


Degradation Performance Modeling And Optimal Maintenance Planning Of Deteriorating Critical Infrastructures, Hung Q. Nguyen Jun 2022

Degradation Performance Modeling And Optimal Maintenance Planning Of Deteriorating Critical Infrastructures, Hung Q. Nguyen

USF Tampa Graduate Theses and Dissertations

Serving as the backbone of the nation’s economy, a large and growing number of deteriorating critical infrastructures, such as transportation and water infrastructures, are underperforming, aging, becoming structurally deficient, and must be repaired or replaced. Due to the influence of a variety of factors (e.g., material structure, design, operation, and environmental conditions) at different phases of lifecycle and the costly data acquisition process, field degradation of deteriorating infrastructures is highly uncertain with limited degradation data. The co-location and spatial proximity between many infrastructures, such as road and water infrastructures, further makes them physically and operationally interdependent. The sheer deterioration of …


Japan’S Covid 19 Infection Rate: A Focus On Tokyo Neighborhoods, Lauren Koerner Jun 2022

Japan’S Covid 19 Infection Rate: A Focus On Tokyo Neighborhoods, Lauren Koerner

USF Tampa Graduate Theses and Dissertations

This thesis asks, are neighborhood demographic and economic variables connected to COVID-19 infection rates in Tokyo, Japan? I hypothesize that variation in urbanization and neighborhood demographics account for Japan’s low, though not uniform COVID-19 infection rates. This thesis applies several anthropological perspectives: The biocultural perspective because I look at epidemiology of COVID 19 considering socio-cultural, economic, and ecological factors as well as biological susceptibilities. The critical biocultural perspective because I look at how structures of power and inequality may impact health and healthcare access. Biomedical/applied anthropology, well placed to study the current epidemiologic situation of COVID 19 in Japan and …


Nonparametric Estimation Of Transition Probabilities In Illness-Death Model Based On Ranked Set Sampling, Ying Ma Jun 2022

Nonparametric Estimation Of Transition Probabilities In Illness-Death Model Based On Ranked Set Sampling, Ying Ma

USF Tampa Graduate Theses and Dissertations

The ranked set sampling (RSS) design is applied widely in agriculture, environmental science, and medical research where the exact measurements of sampling units is costly, but sampling units can be ranked by a correlated concomitant variable. RSS is usually a cost-efficient alternate to simple random sampling (SRS) for selecting more representative samples. This study presents a novel methodology to investigate the nonparametric estimation of transition probabilities in illness-death model using the RSS design. We study the Aalen–Johansen estimator of transition probabilities in illness-death Markov model based on RSS design under random right censoring time and propose nonparametric estimators of the …