Other Education Commons^™

Hybrid Rans-Les Hemolytic Power Law Modeling Of The Fda Blood Pump, Joseph Tarriela

USF Tampa Graduate Theses and Dissertations

This study applies the SBES and IDDES hybrid RANS-LES turbulence models along with the K-ω SST model to four flow conditions of the FDA blood pump. Validation of all three turbulence models show good agreement with experimental pressure and velocity fields. Evaluation of turbulent kinetic energy fields for the hybrid models show 80-90+% of kinetic energy is resolved in the rotor and diffuser regions of the pump. Hemolysis power law models were evaluated using the commonly used von Mises stress and additional energy dissipation stress (EDS). Results show viscous and Reynolds stresses computed with the K-ω SST under predict and …

Assessing Environmental Sensitivity In San Diego County, California, For Bird Species Of Special Concern, Eda Okan Kilic

USF Tampa Graduate Theses and Dissertations

It is widely recognized that desertification constitutes one of the biggest environmental problems on Earth. Desertification negatively impacts the future of humans and other living things all over the globe. Therefore, the assessment of desertification is essential to both monitor and combat desertification. A number of models are routinely applied to assess desertification. The MEDALUS model is one of the most popular approaches, identifying desertification risk based on an environmentally sensitive area index (ESAI) that integrates climate, vegetation, soils, groundwater, and socio-economic factors to obtain an overall rating. The goal of this study was to measure the potential impacts of …

Investigating A Potential Sting Modulator, Jaret J. Crews

USF Tampa Graduate Theses and Dissertations

The work contained in this thesis introduces a protein known as STING, an acronym for STimulator of INnterferon Genes, an immunosurveillance ER-membrane bound adapter protein critical to regulating the innate immune response in humans. The first chapter provides an overview of the STING pathway, outlines STING’s potential as a therapeutic target of interest, and delineates the primary challenges researchers encounter when designing small molecules to modulate the activity of STING. Current efforts in developing STING modulators have focused on devising agonists to up-regulate the STING pathway as a possible therapeutic for human cancers based on the chemical scaffold of STING’s …

Healthcare Profession Students Of Color Participating In International Service-Learning, Ellyn Katherine Couillard

USF Tampa Graduate Theses and Dissertations

This qualitative exploratory case study investigated the healthcare profession students’ of color experience and the perceived impact of completing international service-learning (ISL). Before this study, most of the research about healthcare profession students in ISL reported had mainly White participants or reported data and findings in the aggregate. To complete this research, I performed two semi-structured interviews with each of the five participants incorporating photo-elicitation techniques. Then I performed constant comparative methods and communicated with a peer debriefer about my findings. Five participants were selected using max maximum variation based on racial, ethnic, and cultural backgrounds, programs of study, and …

Exploring Interaction Through The Online Language Instructor Lens: Perceptions, Strategies, And Challenges, Jessica Krentzman

USF Tampa Graduate Theses and Dissertations

As our world becomes more interconnected, our learning environment and interactions continue to evolve, moving away from face-to-face meetings, toward online discussions using various forms of interaction. In the online learning environment, instructors now need to swiftly pivot their methods of instruction in order to assure student success in the online learning environment and to achieve this goal, instructors need concrete instructional and design strategies to support student interactions. To this end, I explored how online language instructors currently promote interaction in their courses, how the Community of Inquiry (CoI) framework applies to their selection of instructional strategies, the instructors’ …

Male Student Experiences In Community-Based Federal Work-Study (Cbfws): Exploring The Relationship Of Cbfws To Academic Performance, Career Readiness, And Social Support, Dustin Krein

USF Tampa Graduate Theses and Dissertations

Federal Work-Study (FWS) is a form of student employment in postsecondary education funded by a student’s financial aid. At the University of South Florida (Tampa campus), in the Community-Based Federal Work-Study (CBFWS) program managed by the Office of Community Engagement and Partnerships (OCEP), there has been a decreasing rate of participation among its male students compared to female students. This study examined the experiences and perspectives of male students in CBFWS at USF. The study was guided by one central research question with three sub-questions: From the perspective of the male student participants, what is their CBFWS experience in relation …

Magnetic And Structural Effects In Interfacial Magnetism: Molecular Magnets And Ferrimagnetic Alloys, Jenae E. Shoup

USF Tampa Graduate Theses and Dissertations

Magnetic thin films are important for technological applications such as giant magnetoresistance,spin valves and magnetic tunnel junctions. A key feature for these applications to be possible is the interface between two materials. We will be studying two types of thin film magnetism; interfaces between molecular carbon, C60, and non-magnetic/ferromagnetic material and two layers of ferrimagnetic rare earth/ transition metal alloys (RE/TM) that have similar composition to engineer a magnetic tunable interface.

One of the most unexpected spin-related properties of C60 is the emergence of room-temperature ferromagnetism in multilayer films of C60 and non-ferromagnetic transition metals such as Cu or Mn …

Relationships Among The Community Of Inquiry, Achievement Emotions, And Academic Achievement In Asynchronous Online Learning In Higher Education, David H. Tai

USF Tampa Graduate Theses and Dissertations

This research aimed to investigate how achievement emotions predict, mediate, and affect academic achievement in online learning. Online learning has been proliferating, but little is known about how emotion mediates cognition in the Community of Inquiry framework. Recent progress in cognitive neuroscience provided the theoretical foundation for researchers to investigate emotion's role in online learning, especially academic achievement. The researcher of this study adopted a quantitative non-experimental research design to investigate how achievement emotions mediated, predicted, and affected academic achievement in the Community of Inquiry framework. The Partial Least Square Structure Equation Modeling (PLS- SEM) method was adopted for statistical …

The Career Decision-Making Self-Efficacy And Career Action Steps Of Humanities Students: A Quantitative Survey Analysis, Catherine Gorman Cordova

USF Tampa Graduate Theses and Dissertations

In an era of governmentally controlled education systems sustained through performance-based funding metrics, the value of higher education is often considered justified by socioeconomic impact and degree employability. Although modern academia traces its roots to the humanities and liberal arts for its foundation, degrees without direct job relation, and the students seeking these degrees, are often considered less employable than majors directly linked to vocations. However, the humanities and labor market are not mutually exclusive. Influenced by Social Cognitive Career Theory (SCCT) (Lent, et al., 1994), Self-Efficacy Theory (Bandura, 1977), and Career Maturity Theory (Crites, 1973), this cross-sectional quantitative survey …

Passion To Purpose: An Autobiographical Narrative Inquiry Into The Development Of The Summer Ace Program, Owen Hooper

USF Tampa Graduate Theses and Dissertations

Students transitioning from high school to college are met with many challenges beyond academics including social acclimation, campus culture integration, and holistic wellness. Researchers agree that a successful and purposeful transition for incoming college students requires involvement and engagement with peers to help students adapt and increase their likelihood to graduate (Astin, 1999; Kuh, 2009; Tinto, 1998). This autobiographical narrative inquiry reflects on past experiences in assessing the needs of transitioning students at the University of South Florida and developing a purposeful programming model to support students. I aim to help the reader understand my personal commitment to these programs …

Qualitative Examination Of Sex Therapists' Perspectives Regarding Women With Low Sexual Desire, Tatiana C. Bryan

USF Tampa Graduate Theses and Dissertations

Female sexual desire disorder is often discussed in the literature, but there is a paucity of data on how sex therapists conceptualize and treat this disorder. To address a gap in the current literature, this study collected the perspectives and attitudes of clinicians working with patients presenting with low sexual desire. This qualitative study aimed to understand how sex therapists’ conceptualization of female sexual desire disorder is used to make decisions about diagnosis, treatment, and assessing patient progress. Grounded theory methodology was used to examine the attitudes and beliefs held by sex therapists. Results were used to generate a framework …

Defining And Modeling Pericyte-Induced Capillary Network Assembly, Capillary Regression Preceding Pericyte-Stimulated Fibrosis, And Lymphatic Capillary Regression, Scott Stephen Kemp

USF Tampa Graduate Theses and Dissertations

Capillary formation and maturation can only occur through a series of highly orchestrated events that requires the coordinated efforts of both endothelial cells (ECs) and pericytes. While ECs are perfectly capable of creating tube networks on their own, the maturation and stabilization of these tube networks require the presence of a second cell type, pericytes, to create stable capillary networks. Previous studies have identified factors required for pericyte recruitment to EC tube networks, however, we hypothesized that there were still unaccounted for EC-derived molecules that were contributing to pericyte recruitment. In the first part of this study, we used serum-free, …

Targeting The Side-Chain Convergence Of Α-Helical Hot Spots To Design Small-Molecule Mimetics Disrupting Protein-Protein Interaction, Zhen Wang

USF Tampa Graduate Theses and Dissertations

α-Helix accounts for the largest class of protein secondary structures and plays a key role in mediating protein-protein interactions (PPIs). Small-molecule α-helix mimetics mimic the structural features of α-helical hot spots and offer a powerful tool to unravel complex signaling networks and mitigate aberrant PPIs. In this dissertation, the side-chain conformational convergence of α-helical hot spots was disclosed, and insights into the side-chain convergence were exploited to instruct the design of small-molecule α-helix mimetics. The first chapter of this dissertation provides an overview of the characteristics of α-helical hot spots and current strategies to design small-molecule α-helix mimetics. In chapter …

Distributed Leadership: Formal Leadership, Barriers, And Facilitators For Multi-Tiered Systems Of Support, Joseph D. Latimer

USF Tampa Graduate Theses and Dissertations

Currently, educators are exposed to an increased environment of accountability, which prioritizes student academic achievement. That environment of accountability is reinforced by multiple pieces of legislation that also call attention to the implementation of multi-tiered systems of support (MTSS). Even with these federal mandates, educators are continuously overwhelmed implementing MTSS and often leverage distributed leadership practices such as school leadership teams to carry out school improvement tasks. Both distributed leadership practices and MTSS are directly impacted by the practices of formal leadership (i.e., principals). In addition, enablers of and barriers to distributed leadership for MTSS should be investigated. This current …

2d Lateral Heterostructures For Optoelectronic Devices, Florence Ann Emila Nugera

USF Tampa Graduate Theses and Dissertations

Two-dimensional (2D) materials show remarkable physical properties when compared to their bulk form. These are single layer materials where the atoms are covalently bonded to each other. Among the 2D materials, transition metal dichalcogenides (TMDCs) have special consideration due to its unique electrical, optical and mechanical properties. These materials can be combined either vertically or laterally to form heterostructures and can be mixed to form alloys in order to expand the number of members in the 2D family. In turn optoelectrical properties can be tuned for better performances when develop for potential applications.

In the first part of this dissertation, …

A Macro Social Examination Of The Relationship Between Disabilities And Crime Using Neighborhood And County Level Data, Natasha A. Baloch

USF Tampa Graduate Theses and Dissertations

Over the last few decades, there has been a consistent increase in mental illnesses in the US population. This has also lead to increased interactions of those with mental illnesses and/or disabilities with law enforcement and the criminal justice system. Despite these instances, there is limited research on the relationship between disabilities, mental health issues and crime in the large body of criminological research. Further, the current extant research is a) outside the field of Criminology, b) primarily focuses on those with only intellectual or developmental disabilities and/or c) does not examine this relationship at the macro level, despite evidence …

Inaccuracies In Patient Self-Report Of Genetic Testing Results For Hereditary Cancer Risks Could Impact Risk-Management Practices, Brittany Faye Sears

USF Tampa Graduate Theses and Dissertations

Pathogenic variants (PV) or likely pathogenic variants (LPV) in a cancer risk gene increase lifetime risks of developing cancer. National guidelines provide evidence-based recommendations on cancer risk management (CRM) strategies tailored to the cancer risks associated with PV/LPV in different genes. Emotional responses after learning of a PV/LPV have been studied as predictors of patient adherence to CRM, but less attention has been given to whether patients remember their actual genetic test results and the impact this may have on subsequent adherence to CRM. We surveyed a group of 114 participants registered with the Inherited Cancer Registry (ICARE), all of …

Impact Of Perinatal Exposure Counseling On Patient Reported Emotional Outcomes And Decisional Empowerment, Madison J. Lake

USF Tampa Graduate Theses and Dissertations

In the United States, 88.8% of pregnant patients utilize at least one medication during pregnancy. The lack of guidance on medication use and teratogen exposures during pregnancy can induce stress and impact decision-making about continuing or adding medication in pregnancy. Although previous research has evaluated changes in patient knowledge after exposure counseling, we are unaware of studies that examined emotional outcomes or the extent to which patients feel informed and empowered to make decisions related to medication use. Our quasi-experimental study measured changes in patients’ feelings of guilt, anxiety, and decisional empowerment after receiving exposure counseling from trained teratogen information …

Reconceptualizing Global Citizenship: Experiences From Women Who Have Studied Abroad, Jessica L. Colston

USF Tampa Graduate Theses and Dissertations

This study used self-curated photo elicitation to express students’ awareness of power, privilege, and identity. The purpose of this qualitative research was to explore how female undergraduate students interacted with their environment and conceptualized a critical understanding of global citizenship. As such, this inquiry asked: (1) To what extent do female undergraduate students from the United States who have participated in a study abroad program develop a critical understanding of global citizenship? (2) How are students’ awareness of power, privilege, and identity reflected in their documentation and narration of their experiences abroad?

Bronfenbrenner’s bioecological systems theory and transnational feminism explained …

Curricular Assemblages: Understanding Student Writing Knowledge (Re)Circulation Across Genres, Adam Phillips

USF Tampa Graduate Theses and Dissertations

This dissertation proposes that the field of Writing Studies (WS) as well as writing program administrators (WPAs) should integrate quantitative methods into curricular assessment in order to improve pedagogical practices within their curricula. Through the use of the theoretical framework of assemblage theory, a theory that has been underutilized within WS, and the lens of linguistic, cultural, and substantive (LCS) language patterns, this study attempts to identify and understand student writing knowledge circulation and recirculation within one local curriculum. As well, with the incorporation of technological tools such as RAND-Lex, WPAs and WS researchers can identify granular patterns within student …

A Principal's Story Of Leadership: The Evolution Of School Culture In A School For Gifted Education, Lori Wiley

USF Tampa Graduate Theses and Dissertations

A school’s culture evolves over time and guides the ways in which those who interact within the school think, feel, and act. It is grounded in shared meanings, foundational beliefs, and value systems created by a school (Deal & Peterson, 2009). The principal plays a key and critical role in influencing and shaping school culture. The literature representing gifted education, school culture, and the role of the principal in shaping school culture is substantial; however, there is a gap in the literature that explores the role of the principal in gifted education and how the principal might shape the culture …

Racial And Ethnic Difference In Music Performance Self-Efficacy Among Undergraduate Students, George W. Shannon Ii

USF Tampa Graduate Theses and Dissertations

Musical self-efficacy is an area that has been studied in areas such as music performance (McCormick & McPherson, 2000; Zelenak, 2011) and music achievement (Zelenak, 2019). McPherson and McCormick (2006) conclude that the relationship between music self-efficacy and music performance is significant. With this understanding, the present study will determine if there is a significant difference by race or ethnicity in music performance self-efficacy among undergraduate students. Researchers have long reported the need for additional racially diverse studies in educational research with newer studies needed in music. Using the Music Performance Self-Efficacy Scale (MPSES), African-American, Caucasian, and Mixed responded to …

Instrumental Music Instruction And Executive Functions: A Cross-Sectional Study Of Romanian Children (10-12 Years), Adrian Sorin Iordache

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to assess the differences in verbal fluency, verbal memory, and processing speed of children (age 10-12) enrolled in a Romanian vocational music school as compared to a group enrolled in vocational visual arts school, and a group enrolled in a regular public school. This is the first study to assess children enrolled in a music school in Romania. A total of 105 participants (43 males and 62 females) 10 to 12 years old (M = 11.13, SD = .34) competed the testing. There were 36 participants (15 males and 21 females) in the music …

Labor-Based Grading Contracts In The Multilingual Fyc Classroom: Unpacking The Variables, Kara Kristina Larson

USF Tampa Graduate Theses and Dissertations

This descriptive, exploratory study’s purpose is to determine the effects of labor-based grading contracts on students whose historical exclusion results in their current day underrepresentation in higher education. A key component of this study is the emphasis on the student’s own perceptions and feelings about the use of labor-based grading contracts. Using a purposive sample of multilingual First-Year Composition (FYC) sections at an R1 university, I investigated the variables of labor-based grading contracts: demographics and written language characteristics, student motivation, ecological variables (i.e., perceptions of grading contracts), and academic performance measures. Research questions include: 1) How do labor-based grading contracts …

Pressure Retarded Osmosis: A Potential Technology For Seawater Desalination Energy Recovery And Concentrate Management, Joshua Benjamin

USF Tampa Graduate Theses and Dissertations

Currently, a significant challenge with reverse osmosis-based desalination is reducing the energy consumption and environmental impacts of the process. This project analyzed the viability of using pressure-retarded osmosis (PRO) for energy recovery in seawater desalination facilities using brine concentrate (the draw solution) and other water sources (the feed solution) such as wastewater effluent. The primary goal of this project is to decrease the cost and overall energy consumption of seawater desalination through PRO-based energy recovery. Process modeling, statistical and sensitivity analysis, energy and cost analysis, geospatial and GIS analysis, laboratory-scale testing, water quality analysis, SEM-EDS microscopy, computational fluid dynamics (CFD), …

Spin Coupling In Magnetic Core - Shell Nanoparticles, Corisa Kons

USF Tampa Graduate Theses and Dissertations

Magnetic nanoparticles (NPs) have garnered much interest due to the unique properties that emergewhen compared to their bulk counterparts. In particular, core-shell (CS) NPs offer the ability to tailor the magnetic properties of the system through careful selection of core and shell constituent materials. In this work, the magnetic ordering of CS NPs with contrast in core/shell features (moment, anisotropy, coercivity, etc.) have been investigated using a combination of X-ray magnetic circular dichroism spectroscopy (XMCD) and polarized small angle neutron scattering (SANS). First, temperature-dependent analyses of XMCD and SANS studies were carried out for CS NPs featuring a core composed …

Internship And Job Acquisition Experiences Of Veterans In A Graduate Cybersecurity Degree Program, Stephen P. Gary

USF Tampa Graduate Theses and Dissertations

My purpose in this qualitative inquiry was to explore how student veterans experience cybersecurity internships and job acquisitions. I chose Schlossberg’s individual transition theory viewed through a constructivist lens to support the inquiry. Five participants, who completed graduate cybersecurity internships and acquired cybersecurity positions, provided responses. I employed semi-structured interviews to collect data from the participants. I engaged reflexive thematic analysis to guide my data analysis. Based on my analysis, I generated the following discoveries applicable to the inquiry: (a) opportunities for developing practical experience are regarded as essential for successful participation in an internship; (b) a flexible internship program …

An Assessment Of Nutrient Improvement In Surface Water Due To The Conversion Of Onsite Sewage Treatment And Disposal Systems To Sewerage, Jenelle A. Mohammed

USF Tampa Graduate Theses and Dissertations

Florida represents approximately 12% of all onsite sewage treatment and disposal systems (OSTDS) in the United States. Properly designed, constructed and maintained OSTDS are effective eco- friendly alternatives for the treatment of domestic wastewater from households not serviced by public sewer systems. However, conventional OSTDS are not designed to effectively remove nitrogen. If installed and improperly used, they may contribute other pollutants. OSTDS have also been linked to degraded water quality in some regions. However, it has been difficult to quantify OSTDS impacts on water quality because of various confounding factors such as point and non-point sources of nutrient input. …

Material And Topographically Optimized Thermal Dissipation For High-Performance Electronic Devices Utilizing Vapor Chambers, Derek Joseph Daniels

USF Tampa Graduate Theses and Dissertations

Advances in materials science and engineering in the field of thermal transport and dissipation enable the use of higher-performance electronic devices that are smaller and generate more heat. Phase change thermal transport systems such as heat pipes and vapor chambers enable passive dissipation from devices that generate excessive heat without the need for actively pumped cooling systems. Properly designed vapor chamber enabled systems easily exceed the thermal conductivity of manufactured diamond at a small fraction of the cost.[1][2][3] While heat pipe phase change systems are generally one-dimensional with a limited cross section, vapor chambers are generally two-dimensional with a small …

Comprehensive Leadership Development: Principal Characteristics, Experience And Performance, Gregory Basham

USF Tampa Graduate Theses and Dissertations

The significance of the principal’s role in creating a generative learning environment to influence student achievement is well documented in research (Davis et al., 2017; Hitt & Tucker, 2016; Leithwood, 2012; Leithwood, & Jantzi, 2008; Sebastian et al., 2017). This research has led to the creation of frameworks for developing leaders and constructs identifying effective leadership practices (Leithwood, 2012; Murphy et al., 2006; Sebring et al., 2006), but very little research has been done to investigate the relationship between prior roles and principal performance. Research designed to focus on the professional background of effective principals, the relationship of how prior …