Digital Commons Network^™

A Fundamental Investigation Into Low Thermal Conductivity P-Type Chalcogenides And Skutterudites With Potential Thermoelectric Applications, Dean Hobbis

USF Tampa Graduate Theses and Dissertations

Sustainable and renewable energy is an incredibly important area in today’s society and investigation into avenues to improve this wide ranging technology are underway in many different fields. Thermoelectric devices possess the ability for the direct solid-state interconversion of heat and electrical power, which not only allows for sustainable refrigeration but also waste heat recovery. One current restriction on the efficiency of thermoelectric devices is the disparity in thermoelectric performance of p-type and n-type materials. Furthermore, a key physical attribute shared by the majority of high performing thermoelectric materials is low thermal conductivity. Thus in this thesis three separate p-type …

A Culture Of Resistance: An Ethnography Of Tampa Bay’S Racial Justice Activist Community, Emily Janna Weisenberger

USF Tampa Graduate Theses and Dissertations

Racial justice activists in Tampa Bay comprise a community and culture structured as a movement of social transformation. Data from eleven interviews and more than 100 hours of participant observation show that activists consist of a diverse array of Tampa Bay residents of varying ages, genders, sexualities, racial/ethnic identities and livelihoods. This community is best described by their beliefs and practices of ideology steeped in intersectionality and anti-capitalism, and are motivated by or empathetic to racial injustices directly experienced by them or those around them. The intention of this paper is to describe activists as they are rather than as …

Influencing Gender Specific Perceptions Of The Factors Affecting Women’S Career Advancement Opportunities In The United States, Kevin C. Taliaferro

USF Tampa Graduate Theses and Dissertations

This research investigates the sociological, psychological, and physiological factors known to affect women’s career advancement opportunities. It examines how awareness and knowledge shared through the #MeToo (hashtag Me Too) movement influenced gender specific perceptions about the factors affecting women’s workplace opportunities. Finally, it recommends measures to alter the divergent gender perceptions that remain an obstacle to gender equality in the workplace.

This study was conducted because gender inequalities continue in the U.S. workplace in 2018. Currently women fail to advance in careers at the same rate as men, and they are paid 21% less for similar work with equal skills …

Assessing Abstinence In Infants Greater Than 28 Days Old, Genieveve J. Cline

USF Tampa Graduate Theses and Dissertations

There are currently no published scoring instruments with prior empirical evidence to support the validity and reliability of the accuracy of the drug withdrawal scores generated in infants greater than 28 days of life with a diagnosis of Neonatal Abstinence Syndrome (NAS). This study was done to identify the signs of withdrawal in infants greater than 28 days of life with NAS and determine if further adaptation of the modified-FNAST was necessary to accurately measure the severity of drug withdrawal in this sub population of infants. This aim could not analyzed due to limitations of the data.

The study was …

Labor Planning Outcomes: Systemic Management Models, Human Interactions, And Knowledge Sharing, Richard J. Tarpey

USF Tampa Graduate Theses and Dissertations

This project takes a systemic approach to hospital labor planning and allocation rather than sub-optimizing the individual components of workload demand forecasting, scheduling, and staffing separately. The research considers all three components within their interdependent, dynamic, cyclical systemic nature to develop a better labor planning and allocation cycle (LPAC) management model across the various subsystems of the hospital. We used an Action Design Research (ADR) method to the guided emergence of innovative artifacts – Systemic LPAC Management Model and LPAC Performance Metrics – that we evaluate and improve through interventions in situ with practitioners. The Systemic LPAC Management Model leveraged …

Intangible Capital: Culture Of Innovation And Its Impact On The Cash Flow Multiple, James Russell Gregory

USF Tampa Graduate Theses and Dissertations

The definition for a culture of innovation (COI) is the perception of a company that prioritizes the advancement of new ideas that create value across all operations. On the face of it that seems a precious attribute for any company to nurture and exploit, but measuring and valuing a culture of innovation has proven elusive for corporations. There is a tendency to break down innovation into R&D, patents granted, and new product development and while these are all significant components of innovation a cultural definition is more encompassing of the entirety of a company and the financial results should be …

Developing Teacher Efficacy In High Poverty Schools, Dawn Stites

USF Tampa Graduate Theses and Dissertations

This capstone project was part of a group project completed by three principals in elementary schools in Hillsborough County, Florida. The project began because of our passion to understand effective teachers. Our collective goal was to have more engaged teachers which would create more engaged students resulting in greater student and teacher success.

Our overall group project purpose was to discover the behavior and characteristics an engaged teacher demonstrates and how these behaviors affect the learning environment and the students that are in that environment. The project was guided by the question, how does a culture of engaged teachers develop …

Assessing The Impacts Of Ghana’S Oil And Gas Industry On Ecosystem Services And Smallholder Livelihoods, Michael Acheampong

USF Tampa Graduate Theses and Dissertations

Ghana discovered oil and gas within its shores in commercial quantities in the year, 2007. This discovery was hailed as a potential turn around for the country’s economic destiny. While this optimism may have been well-founded, there has been a relative lack of appreciation of the potential adverse implications of the industry on traditional smallholder livelihoods, and the critical ecosystems that form their basis. In many countries, discovery of natural resources results in negative environmental and social outcomes, due to the loss of local livelihoods and environmental degradation. Deterioration of local livelihoods occurs through several biophysical pathways, both simple and …

Teaching Mands To Individuals With Autism Spectrum Disorder: An Evaluation Of The Essential For Living Communication Modality Assessment, Daniella Orozco

USF Tampa Graduate Theses and Dissertations

McGreevy, Fry, and Cornwall (2014) developed an assessment within the Essential for Living (EFL) manual for clinicians to identify which communication modality should be used for each individual. This assessment identifies an AAC based on the learner’s skills, level of problem behavior, similarities between AAC and vocal community, and size of the verbal community. However, to date, no research has evaluated if this assessment identifies the communication modality that will result in faster acquisition of mands in individuals with ASD. Thus, the purpose of this study was to compare acquisition of mands across a modality identified by the EFL communication …

Developing The Evidence Base For Mental Health Policy And Services: Inquiries Into Epidemiology, Cost-Benefits, And Utilization, Joseph L. Smith

USF Tampa Graduate Theses and Dissertations

The overarching aim of this dissertation is to use health services research methods to address three problems in behavioral health services. This dissertation seeks to address the knowledge gaps in behavioral health services through the generation of evidence intended to support evidence-based practices (EBP).

Previous work has examined epidemiology of behavioral health disorders in the ED, but they have not attempted to examine disorders by the cause of injury. Chapter 2 examines the epidemiology of psychiatric disorders among adults who seek care in the emergency department (ED) by cause of injury. Data from a national hospital discharge survey was analyzed …

The Role Of Race/Ethnicity And Risk Assessment On Juvenile Case Outcomes, Tayler N. Shreve

USF Tampa Graduate Theses and Dissertations

Guided by traditional and micro-level theories, the present study seeks to identify the relationship between race/ethnicity and risk factors in the Florida juvenile justice system. Central to this explanation is the understanding that racial biases and stereotypes have been shown to influence the decision-making of probation officers. The objectives are to examine the extent that race and risk factors influence court outcomes, in addition to the extent to which individual level risk factors influence court outcomes. The results provide insight into the relationship between the influence of racial biases and stereotypes of probation officers and juvenile risk assessment scoring.

What’S The Function? Assessing Correspondence Between Functional Analysis Procedures, Sindy Sanchez

USF Tampa Graduate Theses and Dissertations

In 1997, Congress established the Individuals with Disabilities Education Act (IDEA, 1997), which required that schools conduct functional behavior assessments when a student engages in problem behavior that may lead to suspension or expulsion (Ervin et al., 2001; Yell & Katsiyanis, 2010). As a result, research has expanded to include ways to adapt the functional assessment process in school settings. The purpose of this study was to compare the correspondence between functional analysis procedures for students in a private school and validate the assessment outcomes with interventions conducted in the classroom settings. The results indicate that both assessments corresponded in …

Application Of The Fusion Model For Cognitive Diagnostic Assessment With Non-Diagnostic Algebra-Geometry Readiness Test Data, Robert H. Fay

USF Tampa Graduate Theses and Dissertations

This study retrofitted a Diagnostic Classification Model (DCM) known as the Fusion model onto non-diagnostic test data from of the University of Chicago School Mathematics Project (UCSMP) Algebra and Geometry Readiness test post-test used with Transition Mathematics (Third Edition, Field-Trial Version). The test contained 24 multiple-choice middle school math items, and was originally given to 95 advanced 6th grade and 293 7th grade students. The use of these test answers for this study was an attempt to show that by using cognitive diagnostic analysis techniques on test items not constructed for that purpose, highly predictable multidimensional cognitive attribute profiles for …

Connected Autonomous Vehicles: Capacity Analysis, Trajectory Optimization, And Speed Harmonization, Amir Ghiasi

USF Tampa Graduate Theses and Dissertations

Emerging connected and autonomous vehicle technologies (CAV) provide an opportunity to improve highway capacity and reduce adverse impacts of stop-and-go traffic. To realize the potential benefits of CAV technologies, this study provides insightful methodological and managerial tools in microscopic and macroscopic traffic scales. In the macroscopic scale, this dissertation proposes an analytical method to formulate highway capacity for a mixed traffic environment where a portion of vehicles are CAVs and the remaining are human-driven vehicles (HVs). The proposed analytical mixed traffic highway capacity model is based on a Markov chain representation of spatial distribution of heterogeneous and stochastic headways. This …

Human Activity Recognition Based On Transfer Learning, Jinyong Pang

USF Tampa Graduate Theses and Dissertations

Human activity recognition (HAR) based on time series data is the problem of classifying various patterns. Its widely applications in health care owns huge commercial benefit. With the increasing spread of smart devices, people have strong desires of customizing services or product adaptive to their features. Deep learning models could handle HAR tasks with a satisfied result. However, training a deep learning model has to consume lots of time and computation resource. Consequently, developing a HAR system effectively becomes a challenging task. In this study, we develop a solid HAR system using Convolutional Neural Network based on transfer learning, which …

Beyond Replicative Technology: The Digital Practices Of Students With Literacy-Related Learning Difficulties Engaged In Productive Technologies, Aimee Frier

USF Tampa Graduate Theses and Dissertations

In this dissertation, I present the findings from a qualitative case study of the digital literacy integration of a teacher and the digital literacy practices of three students with literacy-related learning difficulties within her classroom. As a researcher, I was interested in the ways students with literacy- related learning difficulties navigated digital tools in a technology-infused environment created by a teacher who has experience using digital tools for instructional and student-learning purposes. My research was guided by the following questions: (1) What was the context, content, and structure of the teacher’s technology instruction? (2) In what ways did the students …

Automatic Multimodal Assessment Of Neonatal Pain, Ghada Zamzmi

USF Tampa Graduate Theses and Dissertations

For several decades, pediatricians used to believe that neonates do not feel pain. The American Academy of Pediatrics (AAP) recognized neonates' sense of pain in 1987. Since then, there have been many studies reporting a strong association between repeated pain exposure (under-treatment) and alterations in brain structure and function. This association has led to the increased use of anesthetic medications. However, recent studies found that the excessive use of analgesic medications (over-treatment) can cause many side effects. The current standard for assessing neonatal pain is discontinuous and suffers from inter-observer variations, which can lead to over- or under-treatment. Therefore, it …

Resisting Essentialism In Cultural Research: A Participatory Action Research Study Of Parent Involvement In Education Among Spanish-Speaking Students And Families, Michael J. Frank

USF Tampa Graduate Theses and Dissertations

The present study aimed to investigate a locally-driven action research project to improve connections between Spanish-speaking Latinx parents and the high school that their children attend. Using Participatory Action Research (PAR), the study sought to create a collaborative research agenda that would empower the participants to study their own culture and practices at the school, and how the two combined to create a home-school partnership. Six parents and two members of the school’s bilingual staff comprised the PAR team, with a total of nine members including the principal investigator. The project began with the creation of a public sphere in …

Lives On The (Story)Line: Group Facilitation With Men In Recovery At The Salvation Army, Lisa Pia Zonni Spinazola

USF Tampa Graduate Theses and Dissertations

In this dissertation, I seek to examine the effects of purposeful journaling and guided storytelling on past traumas, perception of current lives, and the development of new coping skills among men at The Salvation Army’s residential adult rehabilitation center (ARC). All residents of the ARC must attend Christian-based devotional services, go to Alcoholics Anonymous (A.A.) meetings, follow the A.A. 12-step program, and sign up for several weekly counseling and educational groups, one of which is the “Guided Journaling and Storytelling” group I lead. The men who attended this group are (1) addicted to drugs and/or alcohol, (2) face homelessness, (3) …

The Fate Of Kantian Freedom: The Kant-Reinhold Controversy, John Walsh

USF Tampa Graduate Theses and Dissertations

This dissertation examines the relation of Kant’s theory of free will to that of K.L. Reinhold. I argue that Reinhold’s theory addresses several problems raised in the reception of Kant’s practical philosophy, particularly the problem of accounting for free immoral acts. Focusing on Reinhold’s account of free will as a condition for the conceivability of the moral law shows that the historical focus on Reinhold’s break from Kant’s own account and his alleged reliance on facts of consciousness obscures Reinhold’s decidedly ‘Kantian’ argument. This approach provides a new foundation for free will and demonstrates the significance of Reinhold’s practical philosophy …

“I Want Ketchup On My Rice”: The Role Of Child Agency On Arab Migrant Families Food And Foodways, Faisal Kh. Alkhuzaim

USF Tampa Graduate Theses and Dissertations

This exploratory research study examines changes in food and foodways (food habits) among Arab migrant families in a small community in Tampa, Florida. It also explores how those families’ children may play a role in the process of change. Within this community, I conducted my research study at a private school, where I recruited families with children between the ages of eight and seventeen. In applying the ecological model of food and nutrition and the developmental niche theoretical framework, this research draws on qualitative methods, including structured interviews with parents; focus group discussion with parents; a food survey; and children’s …

The Uses Of Community In Modern American Rhetoric, Cody Ryan Hawley

USF Tampa Graduate Theses and Dissertations

This study examines the functions of the term “community” in American social and political rhetoric. I contend that community serves as a god-term, or expression of value and order, which rhetors use to motivate actions, endorse values, include/exclude persons, and compensate for modern losses. Informed by the philosophy of Kenneth Burke, I explore the general features of “rhetorics of community,” including community’s ambiguity and status as an automatic good, the relationship between community and modernity, the myth of communal loss, and the uses of community as a site of political unity and contest. I analyze the writings of John Humphrey …

Everything Is Fine: Self-Portrait Of A Caregiver With Chronic Depression And Other Preexisting Conditions, Erin L. Scheffels

USF Tampa Graduate Theses and Dissertations

This dissertation documents the joys and terrors of caring for my father throughout my twenties and early thirties. The story is autoethnographic and demonstrates the value of narrative research in fostering understandings of self, other, and the world around us. I call this reflexive practice of writing narrative education because as I engaged in it, I learned what it means to care, and how mental health and illness factor into the ways in which care is expressed and provided in my own relationships and beyond. In addition, throughout the story I was a member of the academic community, which makes …

Photocatalytic Carbon Dioxide Conversion To Fuel For Earth And Mars, Anne J. Meier

USF Tampa Graduate Theses and Dissertations

As far as we know, we only have one planet to live on, with a delicate atmospheric system providing us safety and life. Global CO2 emissions continue to plague the environment of Earth, primarily due to the processing of fossil fuels, deforestation, and industrialization. There are several avenues of pursuing CO2 reutilization, each having their own benefits and limitations. Direct and indirect thermochemical approaches of CO2 conversion boast of efficient CO2 conversion rates but have limitations associated with the use of renewable hydrogen and high temperatures of operation. The work in this dissertation investigates low temperature photocatalytic CO2 conversion, a …

Development And Validation Of The Waiting Assessment Interview Tool (Wait) And Evaluation Of Individualized Waiting Durations In Signaled Reinforcement, Claudia Campos Fleitas

USF Tampa Graduate Theses and Dissertations

Indirect assessments are widely used to identify environmental factors that may be manipulated or integrated in the development of direct assessments and behavior interventions for individuals with developmental disabilities. To date, there are no indirect assessments that can be used to evaluate the extent to which children who engage in problem behavior wait to receive reinforcement. However, there are effective behavior interventions to increase waiting. A treatment package consisting of functional communication training (FCT) and schedule thinning (i.e., multiple schedules) has been identified as an effective intervention to increase waiting in children who engage in problem behavior maintained by social …

Evaluation Of Trace-Metal And Isotopic Records As Techniques For Tracking Lifetime Movement Patterns In Fishes, Jennifer E. Granneman

USF Tampa Graduate Theses and Dissertations

The focus of this work was on the use of otolith microchemistry and fish eye lens chemical profiles to measure fish movement and provided indirect support for the use of otolith microchemistry to examine exposure to crude oil. Chapter 1 provides an introduction to the applications of otolith microchemistry and eye lens isotopic profiles. In the second chapter, which examined associations between metal exposure and lesion formation in fishes collected after the Deepwater Horizon (DWH) oil spill, I did not observe any change in oil-associated metal concentrations in otoliths coinciding with the timing of the DWH oil spill. This suggests …

Factors Related To Hearing Aid Use Among Older Adults From Hispanic/Latino Backgrounds: Findings From The Hispanic Community Health Study/Study Of Latinos, Michelle L. Arnold

USF Tampa Graduate Theses and Dissertations

The purpose of this dissertation was to understand perceived hearing loss and hearing health care use among older adults from Hispanic/Latino backgrounds using the Andersen model of health care utilization as a framework. A cross sectional analysis of audiometric and survey data from the Hispanic Community Health Study/Study of Latinos was used to estimate factors that characterize perceived hearing handicap and hearing aid use, and to determine hearing aid use rates in a large group of older Hispanic/Latino adults. Data came from 6970 adults aged 45 to 76. Results revealed that self-perceived hearing handicap is significantly correlated to measured hearing …

Effects Of Mild Traumatic Brain Injury On Ethanol Consumption And The Combined Effects On Neuroinflammation, Cognition, And Behavior In Mice, Jessica L. Hoffman

USF Tampa Graduate Theses and Dissertations

The relationship between alcohol consumption and traumatic brain injury (TBI) often focuses on alcohol consumption increasing the likelihood of incurring a TBI, rather than alcohol use outcomes after TBI. This focus is in part due to the large numbers of TBI patients visiting emergency rooms notable levels of alcohol in their blood. Additionally, increases in alcohol use disorders following TBI can be predicted by previous history of alcohol use. However, studies have also shown patients without a history of an alcohol use disorder can experience increases in problem drinking after single or multiple TBIs. Due to the diffuse impact of …

Spatial And Temporal Distributions Of Pelagic Sargassum In The Intra-Americas Sea And Atlantic Ocean, Mengqiu Wang

USF Tampa Graduate Theses and Dissertations

Pelagic Sargassum is one type of marine macroalgae that is known to be abundant in the Gulf of Mexico and Sargasso Sea. It is also known to serve as a critical habitat for many marine animals. In the past few years, large amounts of Sargassum have been reported in the Tropical Atlantic and Caribbean Sea (CS), causing significant environmental and economic problems. The goal of this study is to improve the understanding of Sargassum distributions, quantity, transport pathways, and bloom mechanisms in the CS and Tropic Atlantic through combining a variety of techniques including satellite remote sensing, field and laboratory …

Machine Learning Methods For Network Intrusion Detection And Intrusion Prevention Systems, Zheni Svetoslavova Stefanova

USF Tampa Graduate Theses and Dissertations

Given the continuing advancement of networking applications and our increased dependence upon software-based systems, there is a pressing need to develop improved security techniques for defending modern information technology (IT) systems from malicious cyber-attacks. Indeed, anyone can be impacted by such activities, including individuals, corporations, and governments. Furthermore, the sustained expansion of the network user base and its associated set of applications is also introducing additional vulnerabilities which can lead to criminal breaches and loss of critical data. As a result, the broader cybersecurity problem area has emerged as a significant concern, with many solution strategies being proposed for both …