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Contributors To And Correlates Of Loneliness In Lung Cancer Patients, Kelly A. Hyland

USF Tampa Graduate Theses and Dissertations

Background

Loneliness, or the perceived discrepancy between the quantity and quality of ones’ actual social relationships and desired level of connectedness, is a potentially important psychosocial factor in lung cancer patients. The purpose of the current study was to investigate the relationship of loneliness to depressive symptoms, quality of life, and social-cognitive variables and to explore the role of loneliness in mediating relationships between social-cognitive variables and depressive symptoms and quality of life. Finally, the study examined whether loneliness predicted change over time in depressive symptoms and quality of life.

Methods

Lung cancer patients were recruited from the Moffitt Cancer …

Investigation Of Thermal History In Large Area Projection Sintering, An Additive Manufacturing Technology, Justin Nussbaum

USF Tampa Graduate Theses and Dissertations

The goal of this work is to explore the benefits of using long exposure times with polymer powder bed fusion additive manufacturing processes and examine the feasibly of this new application as a manufacturing process. It is well known that the sintering which occurs in these systems are a time and temperature dependent process. However, the most common powder bed fusion systems use a laser which scans and heats the powdered feedstock for microseconds at a time, leaving insufficient time for the polymer to fully melt and/or fuse, leading to reduced mechanical properties. Little has been published on the effects …

Contingent Narratives: Exploring Facets Of Cross-Cultural Awareness In An Experiential Global Education Course, Nicholas Bardo

USF Tampa Graduate Theses and Dissertations

This narrative inquiry explores the process through which a combination of coursework, field experiences, and experiential classroom activities engaged pre-service teachers with opportunities to expand their perspective upon culturally normative conceptions of values, beliefs, and worldview. Due to the current racial and ethnic demographic gap separating the professional ranks of the teaching force and the increasingly diverse population of students in the United States, cross-cultural awareness is imperative for both teacher education programming and membership in a culturally pluralistic society.

Drawing on multiple data points, the narrative illuminates the participant voices, context, and dynamic social process of teaching and learning. …

Orthogonal Polynomials With Respect To The Measure Supported Over The Whole Complex Plane, Meng Yang

USF Tampa Graduate Theses and Dissertations

In chapter 1, we present some background knowledge about random matrices, Coulomb gas, orthogonal polynomials, asymptotics of planar orthogonal polynomials and the Riemann-Hilbert problem. In chapter 2, we consider the monic orthogonal polynomials, $\{P_{n,N}(z)\}_{n=0,1,\cdots},$ that satisfy the orthogonality condition,

\begin{equation}\nonumber \int_\mathbb{C}P_{n,N}(z)\overline{P_{m,N}(z)}e^{-N Q(z)}dA(z)=h_{n,N}\delta_{nm} \quad(n,m=0,1,2,\cdots), \end{equation}

where $h_{n,N}$ is a (positive) norming constant and the external potential is given by

$$Q(z)=|z|^2+ \frac{2c}{N}\log \frac{1}{|z-a|},\quad c>-1,\quad a>0.$$

The orthogonal polynomial is related to the interacting Coulomb particles with charge $+1$ for each, in the presence of an extra particle with charge $+c$ at $a.$ For $N$ large and a fixed ``c'' this …

Rumination And Worry: Factor Structure And Predictive Utility, Andrew Mark Kiselica

USF Tampa Graduate Theses and Dissertations

Criticism of discrete classification systems for mental disorders has led to a focus on identification of mechanisms that cut across symptom clusters, known as transdiagnostic factors. One such proposed factor is negative repetitive thought (NRT), or a perseverative, often uncontrollable, focus on negative information, experiences, or expectations. Worry and rumination are two major constructs thought to compose NRT. No confirmatory factor analyses have investigated whether worry and rumination might compose a general NRT factor, discrete factors, or some combination of the two. The first purpose of the current study was to use confirmatory factor analyses to uncover whether worry and …

Physical And Social Systems Resilience Assessment And Optimization, Daniel Romero Rodriguez

USF Tampa Graduate Theses and Dissertations

Resilience has been measured using qualitative and quantitative metrics in engineering,economics, psychology, business, ecology, among others. This dissertation proposes a resilience metric that explicitly incorporates the intensity of the disruptive event to provide a more accurate estimation of system resilience. A comparative analysis between the proposed metric and average performance resilience metrics for linear and nonlinear loss and recovery functions suggests that the new metric enables a more objective assessment of resilience for disruptions with different intensities. Moreover, the proposed metric is independent of a control time parameter. This provides a more consistent resilience estimation for a given system and …

Occupational Noise Exposure Evaluation Of Airline Ramp Workers, Adekunle Ogunyemi

USF Tampa Graduate Theses and Dissertations

Noise exposure is a common hazard to workforce in general although at varying degrees depending on the occupation, as many workers are exposed for long periods of time to potentially hazardous noise.

Every year, twenty-two million workers are exposed to potentially damaging noise at work. In 2015 U.S. businesses paid over $1.5 million in penalties for not protecting workers from noise. (OSHA, 2016). There may be a direct or indirect consequence of the possibilities of overexposure to noise notwithstanding the compulsory hearing protection requests for the occupations with potential hazards, and these exposures usually arise from the various types of …

Investigations On Frp-Concrete Bond, Mostfa Al Azzawi

USF Tampa Graduate Theses and Dissertations

This dissertation presents findings from three separate investigations, a laboratory study and two field studies that evaluated the durability of the Fiber Reinforced Polymer (FRP)-concrete bond. The laboratory study explored the role of porosity on CFRP-concrete bond following immersion in warm water. Two disparate field studies measured residual bond after 20 years outdoor exposure of FRP repairs of full-size masonry walls and after 12 years for partially submerged piles supporting the Friendship Trail Bridge, Tampa Bay.

The ACI 440 code requires the same surface preparation for all externally bonded FRP concrete repairs. This disregards the role of porosity that is …

Spatial Dynamics And Productivity Of A Gulf Of Mexico Commercial Reef Fish Fishery Following Large Scale Disturbance And Management Change, Marcy Lynn Cockrell

USF Tampa Graduate Theses and Dissertations

The Gulf of Mexico commercial reef fish fishery has experienced significant management changes and disturbance in recent years, including transitioning two major fisheries from a traditional open access system into a limited entry individual fishing quota (IFQ) system in 2007 and 2010. Also in 2010, the Deepwater Horizon oil spill (DWH) released an estimated 4.9 million barrels of oil into the Gulf (~206 million U.S. gallons), and is still the largest U.S. environmental disaster to date. Emergency fishing closures initiated shortly after the oil spill began were successful in keeping tainted seafood from reaching markets. However, effects of DWH closures …

A Cultural Adaptation Of Functional Communication Training, Anna Rosio Garcia

USF Tampa Graduate Theses and Dissertations

Disparities in the use, quality, and outcomes of treatments, and the barriers that deter Hispanics from receiving healthcare services have been widely studied. Yet, similar efforts have been slow in the field of Applied Behavior Analysis (ABA). A way to decrease treatment disparities is to assess the influence of cultural variables in behavior analytic interventions, and to evaluate whether manipulations to these variables improve the overall results of the interventions among Hispanic families. During this study, we adapted functional communication training (FCT) to Hispanic parent’s cultural values, we assessed the preference for culturally adapted and non-culturally adapted functional communication responses …

Integration And Cross-Coupling Of A Notched-Turbine Symbiotic Power Source For Implantable Medical Devices, Samuel Perez

USF Tampa Graduate Theses and Dissertations

The purpose of this research is to design and integrate a symbiotic notched-turbine energy generator for implantation as a cross-coupled system capable of continuously and perpetually powering an electronic implantable medical device (IMD), which is a device designed to operate inside the body of a higher mammal to enhance, correct or provide the body with a function that has deviated from the norm or has stopped altogether. The list of IMDs available for implantation keeps growing every year, one of the newest being the VBLOC, produced by EnteroMedics®, and approved by the Food and Drug Administration (FDA) on January 15th, …

Extending Spectrophotometric Pht Measurements In Coastal And Estuarine Environments, Nora Katherine Douglas

USF Tampa Graduate Theses and Dissertations

Nearshore and estuarine environments play a vital role in the cycling of carbon, but the effects of ocean acidification in estuarine waters have not been studied as extensively as in the open ocean. One reason for this is the limitation of pH measurement capabilities in low-salinity waters. Typically, pH in these environments has been measured using potentiometric methods that are subject to uncertainties on the order of 0.01. Spectrophotometric methods for measuring pHT offer precision and accuracy superior to those of potentiometric methods. However, previous characterizations for purified sulfonephthalein indicators, used for marine spectrophotometric measurements, are not applicable to estuarine …

Discourse, Affinity And Attraction: A Case Study Of Iran's Soft Power Strategy In Afghanistan, Hiva Feizi

USF Tampa Graduate Theses and Dissertations

This dissertation is a case study of the Islamic Republic of Iran’s approach to soft power with a focus on Iran’s use of soft power in Afghanistan. This dissertation is unique as it a delves into the diverse conceptual prescriptions on soft power, especially from a non-Western perspective. Studies of soft power in the current International Relations discipline ignore the implicit widespread liberal democratic bias in the current understanding of the concept. This dissertation argues that there are certain ontological assumptions lying deep within the soft power model first proposed by Joseph Nye (1990) that make it difficult to use …

Changing Narratives Of Martyrdom In The Works Of Huguenot Printers During The Wars Of Religion., Byron J. Hartsfield

USF Tampa Graduate Theses and Dissertations

The aim of my project is to show how the lives, strategies and attitudes of Huguenot printers of the late sixteenth century both reflected and influenced the self-image of Protestant Europeans. Historians of the book such as Roger Chartier and Adrian Johns have argued that the process of printing includes several components which are easily overlooked by historians interested in exploring thoughts and attitudes. My project attempts to put these insights to practical use by demonstrating how printers were as integral to the process of reading as were readers and writers. I investigate the lives, social networks, and business strategies …

Monetary Reinforcement For Increasing Walking In Adults With Intellectual Disabilities, Diego Valbuena

USF Tampa Graduate Theses and Dissertations

Physical inactivity is a widespread problem associated with numerous health problems. Individuals with intellectual disabilities are at a high risk of living a sedentary lifestyle. Although a few studies have examined interventions consisting of goal-setting and reinforcement for increasing PA, no studies have evaluated the use of monetary reinforcement. Interventions using monetary reinforcement have been shown to be effective for increasing PA with typically developing adults. The present studies evaluated monetary reinforcement for increasing PA in adults with intellectual disabilities. Study 1 evaluate a session-based intervention where participants earned monetary rewards for attaining step count goals as recorded by pedometers. …

Seeing Trauma: The Known And The Hidden In Nineteenth-Century Literature, Alisa M. Deborde

USF Tampa Graduate Theses and Dissertations

Trauma as an official diagnosis first entered the DSM in 1980 and literary theorists began employing the term to discuss literature not too long after. Since the 1990s, theorists have largely focused on twentieth-century trauma literature with Holocaust and Modernist texts garnering much of the critical interest. Yet, Victorian life was also marked by trauma-causing events. From railway catastrophes, to industrial accidents, to premature deaths, and infectious diseases, Victorians reckoned with wounds to the mind through their lived experience. Trauma scholars who do work with nineteenth-century texts, with few exceptions, consider trauma in terms of its modern theories. While the …

Conformational Fluctuations Of Biomolecules Studied Using Molecular Dynamics And Enhanced Sampling, Geoffrey M. Gray

USF Tampa Graduate Theses and Dissertations

Biomolecule structural fluctuations determine function, regulating numerous biological processes My research has shed light on several interesting cases in which structural fluctuations have been identified to assess functional differences. Chapter 2 discusses the effects of structural rearrangement of the β2-β3 loop on the DNA binding affinity of the type 6 human papillomavirus E2 protein. Chapter 3 investigates the effects of phosphorylation on the C-terminal domain of Cdc37, a protein important in the Hsp90 chaperone cycle. Chapter 4 studies the effects on cyclycization on the conformational fluctuations of a γ-AApeptide used for high-throughput libraries. Chapter 5 is a structural study on …

The Impact Of A Religious/Spiritual Turning Point On Desistance: A Lifecourse Assessment Of Racial/Ethnic Differences, Rhissa Briones Robinson

USF Tampa Graduate Theses and Dissertations

Criminology’s most recent theoretical tradition involves examination of the developmental onset, continuity, and desistance from offending behavior across the life course. A prominent life course perspective organized around social bonding was proffered by Robert J. Sampson and John H. Laub in dual volumes that include Crime in the Making: Pathways and Turning Points Through Life (1993), and Shared Beginnings, Divergent Lives (2003). Because Sampson and Laub’s age-graded theory is based on a sample of White males born in the 1920s and 1930s, and matured during a historical period of vast economic growth, the universal theoretical processes emphasized in their theory …

Identification Of Individuals From Ears In Real World Conditions, Earnest Eugene Hansley

USF Tampa Graduate Theses and Dissertations

A number of researchers have shown that ear recognition is a viable alternative to more common biometrics such as fingerprint, face and iris because the ear is relatively stable over time, the ear is non-invasive to capture, the ear is expressionless, and both the ear’s geometry and shape have significant variation among individuals. Researchers have used different approaches to enhance ear recognition. Some researchers have improved upon existing algorithms, some have developed algorithms from scratch to assist with recognizing individuals by ears, and some researchers have taken algorithms tried and tested for another purpose, i.e., face recognition, and applied them …

Investigation Of Alcohol-Induced Changes In Hepatic Histone Modifications Using Mass Spectrometry Based Proteomics, Crystina Leah Kriss

USF Tampa Graduate Theses and Dissertations

Alcohol liver disease (ALD) is a major health concern throughout the world. Currently, in the United States, 17 million people suffer from alcoholism, of which 1.4 million people are receiving treatment [1, 2]. The link between ethanol metabolism, reactive oxygen species (ROS) and liver injury in ALD has been well characterized over the last couple decades [3-10]. Ethanol metabolism relies on the availability of the cofactor NAD+ for the oxidation of ethanol into acetate, consequently causing alterations in redox potential. Redox dysfunction within the mitochondria can affect multiple pathways important in maintaining cellular homeostasis. Chapter 1 provides an introduction to …

Music Software In The Compositional Learning Process, Daniel L. Nevels

USF Tampa Graduate Theses and Dissertations

Computer software for music has made a significant impact by affecting the perspective of music making, music creating, music education, music production, and music distribution. This impact continues to evolve as individuals seek new avenues of musical expression. Through the papers included in this document, I seek to explore the range and impact of computer software in music, especially software related to music creativity and composition.

The first paper is a review of literature concerning the effect of software on creative thought, creativity in music, and the influence this has had in musical composition. In this paper I also explore …

An Examination Of Underlying Causes For Differences In Affect-Rich And Affect-Poor Choice, Elizabeth M. Fuller

USF Tampa Graduate Theses and Dissertations

Real life decision-making frequently involves some level of affect, and research has demonstrated that individuals decide differently when outcomes are more or less rich with feeling. This difference in choice has previously been attributed to probability insensitivity in the presence of affect. In a series of three studies, we explored this possibility, while also testing alternative explanations, namely, that differences exist because of outcome characteristics such as comparability or precision. Individuals made choices between affect-rich side effects and affect-poor monetary lotteries in either a strictly numeric format, or with the addition of an icon array. Across the three studies we …

Characterization Of Computed Tomography Radiomic Features Using Texture Phantoms, Muhammad Shafiq Ul Hassan

USF Tampa Graduate Theses and Dissertations

Radiomics treats images as quantitative data and promises to improve cancer prediction in radiology and therapy response assessment in radiation oncology. However, there are a number of fundamental problems that need to be solved in order to potentially apply radiomic features in clinic. The first basic step in computed tomography (CT) radiomic analysis is the acquisition of images using selectable image acquisition and reconstruction parameters. Radiomic features have shown large variability due to variation of these parameters. Therefore, it is important to develop methods to address these variability issues in radiomic features due to each CT parameter. To this end, …

Evaluation Of The Teaching Tools For Young Children With Challenging Behavior (Ttyc): Improving Classroom Behavior In Young Children, Leann S. Avila

USF Tampa Graduate Theses and Dissertations

The Teaching Tools for Young Children with Challenging Behavior (TTYC) presents a useful tool to disseminate evidence-based practices into the classroom setting for teachers to create lasting behavioral changes in young children. This study aims to further examine the use of TTYC by classroom teachers for students ages 4-6 years old with and without disabilities who had difficulty engaging in classroom routines or activities. A multiple-baseline across participants design was employed to demonstrate the outcomes of the TTYC in increasing appropriate classroom behavior and reducing problem behavior of the target children. The results indicated that the teachers’ fidelity of implementing …

An Exploratory Study Of Health Promotion And Disease Prevention Communication Among Haitian Mother–Daughter Dyads In West Central Florida, Stacy Eileen Kratz

USF Tampa Graduate Theses and Dissertations

This exploratory study examined links between health communication and other constructs affecting health promotion and disease prevention among Haitian mother-daughter dyads living in West Central Florida, and the risk or protective factors for HIV. Risky sexual behaviors can be reduced with accurate and effective information provided through parent-adolescent communication (Coetzee et al, 2014; Ogle, Glasier & Riley, 2008; Hadley et al., 2009). In Haiti, a country that bears a disproportionate burden of HIV/AIDS, women are the most vulnerable (UNAIDS, 2016a); In the United States (U.S.), foreign-born Haitian women in the state of Florida experience health disparities in many areas and …

Becoming A Woman Of Isis, Zoe D. Fine

USF Tampa Graduate Theses and Dissertations

In this study, I examine how terrorism is produced and consumed in communication. Using discourse analysis, I investigate how terrorism is constituted in the accounts of four women described in online news reports as having joined, or almost joined the so-called Islamic State (IS): “Alex,” constructed as having been lonely and flirted with IS; “Khadija,” presented as a schoolteacher turned member of IS’s all-women’s brigade; Laura, described as a woman whose partner abandoned her, who met a man online, and who brought her son with her to join IS; and Tareena, referred to as a health worker who brought her …

Elastin-Like Polypeptide Fusion Tag As A Protein-Dependent Solubility Enhancer Of Cysteine-Knot Growth Factors, Tamina L. Johnson

USF Tampa Graduate Theses and Dissertations

Elastin-like peptide (ELP) fusions promote therapeutic delivery and efficacy. Recombinant proteins, like neurotrophins, lack bioavailability, have short in vivo half-lives, and require high manufacturing costs. Fusing recombinant proteins with genetically encodable ELPs will increase bioavailability, enhance in vivo solubilization, as well as provide a cost-effective method for purification without the need for chromatography. During expression of neurotrophin-ELP (N-ELP) fusions, dense water-insoluble aggregates known as inclusion bodies (IBs) are formed. Inclusion bodies are partially and misfolded proteins that usually require denaturants like Urea for solubilization. Strong denaturants arrest ELPs stimuli-responsive property and increase unwanted aggregation, making purification difficult, yet possible. The …

Computational Discovery Of Energetic Polynitrogen Compounds At High Pressure, Brad A. Steele

USF Tampa Graduate Theses and Dissertations

High-nitrogen-content energetic compounds containing multiple N-N bonds are an attractive alternative towards developing new generation of environmentally friendly, and more powerful energetic materials. High-N content translates into much higher heat of formation resulting in much larger energy output, detonation pressure and velocity upon conversion to large amounts of non-toxic, strongly bonded N2 gas. This thesis describes recent advances in the computational discovery of group-I alkali and hydrogen polynitrogen materials at high pressures using powerful first-principles evolutionary crystal structure prediction methods. This is highlighted by the discovery of a new family of materials that consist of long-sought after all-nitrogen N􀀀 5 …

Predictive Validity Of Florida’S Postsecondary Education Readiness Test, Alisa Murphy Žujović

USF Tampa Graduate Theses and Dissertations

The role of the community college is constantly evolving. At its inception in the early 1900’s, the community college’s broad focus was to provide quality, affordable education to the members of the community the college serves. Today, that focus remains the same, but has also morphed into one that meets the specific needs of its students. One of these needs that is a critical issue for community colleges relates to developmental education.

The assessment of developmental education has been a contentious subject among higher education institutions. Defining college readiness, methods describing how to measure it, and instruments with which to …

Environmental Perceptions To Promote Self-Directed Learning In The Workplace, Trevor Marshall Bernard

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to identify perceptions of environmental changes that promote self-directed learning in the workplace by Human Resources Development (HRD) practitioners and to investigate possible differences of the dependent LPA score variables to independent variables of highest level of education achieved, race/ethnicity, age, gender, position title, industry, size of the organization, and years of HRD experience.

The research used a mixed method design. Qualitative data were recorded through four focus groups until a saturation of comments was reached. Quantitative Pearson product moment correlation and ANOVA statistics were used to show the possible differences of LPA scores …