Digital Commons Network^™

Multimodal Text Designers: A Case Study Of Literacy Events In A Multicultural Context, Mary-Virginia Feger

USF Tampa Graduate Theses and Dissertations

The erasure of Latino/a adolescents' multiliteracies in school settings affects both their views of education and their entry into the community outside of school. Framed by literacy-as-social-practices perspectives and communities of practice theory, this case study explored what happened when a group of 13 Latino/a adolescents and their Latina teacher engaged in a six-week play production in an after-school program and performed the play for parents. It examined the relationship between the participants' discourse practices and their performance, and determined how they validated their performances. Data collected included observations, interviews, students' written reflective responses, a fieldwork journal, and a DVD …

The Characterization And Interpretation Of The Spectral Properties Of Karenia Brevis Through Multiwavelength Spectroscopy, Adam H. Spear

USF Tampa Graduate Theses and Dissertations

Optical research has shown that Karenia brevis has distinct spectral characteristics, yet most studies have focused exclusively on absorption and chemical properties, ignoring the size, shape, internal structure, and orientation, and their effect on scattering properties. The application of a new spectral interpretation model to K. brevis is shown to provide characterization of unique spectral information, not previously reported, through the use of scattering and absorption properties. The spectroscopy models are based on light scattering and absorption theories, and the approximation of the frequency-dependent optical properties of the basic constituents of living organisms. The model uses the process of mathematically …

A Multiple Case Study Analysis Of Middle Grades Social Studies Teachers' Instructional Use Of Digital Technology With Academically Talented Students At Three High-Performing Middle Schools, Caroline C. Sheffield

USF Tampa Graduate Theses and Dissertations

Appropriate education for academically talented students incorporates the use of complex thinking skills, and encourages the development of interpersonal and leadership skills. One potential tool to achieve these goals is the use of instructional technology. Siegle (2004a, 2005) suggests that it is particularly appropriate to utilize technology with the highly-able because they often possess skills that are effective when using today's technology, specifically abstract thinking and rapid processing.

This mixed methods multiple case study explored middle school social studies teachers' instructional use of digital technology to teach highly-able students. The participant teachers were from three high-performing schools, as identified by …

Beyond Academic Reputation: Factors That Influence The College Of First Choice For High Achieving Students, Holly J. Schoenherr

USF Tampa Graduate Theses and Dissertations

Studies that have investigated college choice factors for high-achieving students repeatedly cite academic reputation as one of the top indicators of choice but have not indicated why some high-achieving students choose to attend universities with a less prestigious reputation than the more highly prestigious options available to them. The purpose of this study was to examine whether differences exist between traditional-aged high achieving students who choose to attend higher-tiered universities and their peers who choose to attend lower-tiered universities.

Independent variables were selected based upon Hossler and Gallagher's (1987) three-stage model and previous research findings in the literature and grouped …

Gothic Cathedral As Theology And Literature, Mary E. Wilson

USF Tampa Graduate Theses and Dissertations

There is a tendency in modern times for life to be divided into strictly separated categories-our music is divided into bins at the record store according to sometimes arbitrary genre distinctions, courses offered by one university department often cannot be counted towards a degree in another department, and students from middle school through college are outraged when they learn that "spelling counts" in a history paper. These distinctions, which are second nature to us even in childhood, were not as numerous or as strict in the medieval European understanding of life. Even when there were systems of division, such as …

Predicting The Medical Management Requirements Of Large Scale Mass Casualty Events Using Computer Simulation, Scott A. Zuerlein

USF Tampa Graduate Theses and Dissertations

Recent events throughout the world and in the US lend support to the belief that another terrorist attack on the US is likely, perhaps probable. Given the potential for large numbers of casualties to be produced by a blast using conventional explosives, it is imperative that health systems across the nation consider the risks in their jurisdictions and take steps to better prepare for the possibility of an attack. Computer modeling and simulation offers a viable and useful methodology to better prepare an organization or system to respond to a large scale event. The real question, given the shortage, and …

Multi-Functional Composite Materials For Catalysis And Chemical Mechanical Planarization, Cecil A. Coutinho

USF Tampa Graduate Theses and Dissertations

Composite materials formed from two or more functionally different materials offer a versatile avenue to create a tailored material with well defined traits. Within this dissertation research, multi-functional composites were synthesized based on organic and inorganic materials. The functionally of these composites was experimentally tested and a semi-empirical model describing the sedimentation behavior of these particles was developed.

This first objective involved the fabrication of microcomposites consisting of titanium dioxide (TiO₂) nanoparticles confined within porous, microgels of a thermo-responsive polymer for use in the photocatalytic treatment of wastewater. TiO₂ has been shown to be an excellent photocatalyst …

End-To-End Available Bandwidth Estimation And Monitoring, Cesar Dario Guerrero Santander

USF Tampa Graduate Theses and Dissertations

Available Bandwidth Estimation Techniques and Tools (ABETTs) have recently been envisioned as a supporting mechanism in areas such as compliance of service level agreements, network management, traffic engineering and real-time resource provisioning, flow and congestion control, construction of overlay networks, fast detection of failures and network attacks, and admission control. However, it is unknown whether current ABETTs can run efficiently in any type of network, under different network conditions, and whether they can provide accurate available bandwidth estimates at the timescales needed by these applications.

This dissertation investigates techniques and tools able to provide accurate, low overhead, reliable, and fast …

Emergency Department Capacity Planning For A Pandemic Scenario: Nurse Allocation, Florentino Antonio Rico

USF Tampa Graduate Theses and Dissertations

The problem considered in this research is the efficient allocation of resources in an emergency department during a large flow of patient consequent to a pandemic influenza breakout. Predicting the impact of a Pandemic Influenza is very complex due to the many unknown variables that may play a role to how severe a pandemic can be. Scenario planning is considered in this research to forecast different potential outcomes and help decision makers better understand the role of uncertainties and become prepared to make important decisions. The goal is to first create a forecast model to estimate the patient demand during …

Nanostructure Morphology Variation Modeling And Estimation For Nanomanufacturing Process Yield Improvement, Gang Liu

USF Tampa Graduate Theses and Dissertations

Nanomanufacturing is critical to the future growth of U.S. manufacturing. Yet the process yield of current nanodevices is typically 10% or less. Particularly in nanomaterials growth, there may exist large variability across the sites on a substrate, which could lead to variability in properties. Essential to the reduction of variability is to mathematically describe the spatial variation of nanostructure. This research therefore aims at a method of modeling and estimating nanostructure morphology variation for process yield improvement. This method consists of (1) morphology variation modeling based on Gaussian Markov random field (GMRF) theory, and (2) maximum likelihood estimation (MLE) of …

Generation Capacity Expansion In Restructured Energy Markets, Vishnuteja Nanduri

USF Tampa Graduate Theses and Dissertations

With a significant number of states in the U.S. and countries around the world trading electricity in restructured markets, a sizeable proportion of capacity expansion in the future will have to take place in market-based environments. However, since a majority of the literature on capacity expansion is focused on regulated market structures, there is a critical need for comprehensive capacity expansion models targeting restructured markets. In this research, we develop a two-level game-theoretic model, and a novel solution algorithm that incorporates risk due to volatilities in profit (via CVaR), to obtain multi-period, multi-player capacity expansion plans. To solve the matrix …

Temporal Registration Of Mammograms By Finite Element Simulation Of Mr Breast Volume Deformation, Yan Qiu

USF Tampa Graduate Theses and Dissertations

Clinically it is important to combine information provided by mammographic images from multiple views or at different times. Taking regular mammographic screening and comparing corresponding mammograms are necessary for early detection of breast cancer, which is the key to successful treatment. However, mammograms taken at different times are often obtained under different compressions, orientations or body positions. A temporal pair of mammograms may vary quite significantly due to the spatial disparities caused by the variety in acquisition environments, including the 3D position of the breast, the amount of the pressure applied, etc. Such disparities can be corrected through the process …

A Framework For Resource Assignments In Skill-Based Environments, Luis Daniel Otero

USF Tampa Graduate Theses and Dissertations

The development of effective personnel assignment methodologies has been the focus of research to academicians and practitioners for many years. The common theory among researchers is that improvements to the effectiveness of personnel assignment decisions are directly associated with favorable outcomes to organizations. Today, companies continue to struggle to develop high quality products in a timely fashion. This elevates the necessity to further explore and improve the decision-making science of personnel assignments. The central goal of this research is to develop a novel framework for human resource assignments in skill-based environments. An extensive literature review resulted in the identification of …

Facial Skin Motion Properties From Video: Modeling And Applications, Vasant Manohar

USF Tampa Graduate Theses and Dissertations

Deformable modeling of facial soft tissues have found use in application domains such as human-machine interaction for facial expression recognition. More recently, such modeling techniques have been used for tasks like age estimation and person identification. This dissertation is focused on development of novel image analysis algorithms to follow facial strain patterns observed through video recording of faces in expressions. Specifically, we use the strain pattern extracted from non-rigid facial motion as a simplified and adequate way to characterize the underlying material properties of facial soft tissues. Such an approach has several unique features. Strain pattern instead of the image …

A Cavity-Backed Coplanar Waveguide Slot Antenna Array, James W. Mcknight

USF Tampa Graduate Theses and Dissertations

In this thesis, a cavity-backed slot antenna array is designed for relatively wide instantaneous bandwidth, high gain and low sidelobes. The array consists of four, rectangular, slot elements, arranged side-by-side in a linear array and developed around 5GHz. Two feed points, at opposing sides of the printed array, each excite two of the slot elements through a series feed. This bidirectional feed presents symmetry to the design and prevents the tendency of beam-drift versus frequency as is common with many series-fed arrays. While being fed in-phase, the array will maintain boresight at broadside over the entire operating bandwidth. Also, the …

Student Reflections: The Impact Of Dual Enrollment On Transitions To A State University, Theresa Lyvette Lewis

USF Tampa Graduate Theses and Dissertations

Dual enrollment is one means of facilitating increased degree productivity, which can lead to the more educated workforce needed in today's society. This qualitative study was designed to obtain student perceptions about their dual enrollment experience, including how it impacted their decision to go to college and what comparisons they would make between their dual enrollment experience and their full university experience. Twenty-one students were interviewed via e-mail to provide responses that would help answer three research questions: 1.What are the initial experiences of dual enrollment students? 2.How does the dual enrollment experience impact the decision of high school graduates …

A New Understanding Of Sophistic Rhetoric: A Translation, With Commentary, Of Mario Untersteiner‘S ―Le Origini Sociali Della Sofistica‖, Elisabeth Lofaro

USF Tampa Graduate Theses and Dissertations

This dissertation translates an essay by Mario Untersteiner "Le origini sociali della sofistica" ("The Social Origins of Sophistry") unpublished in English, and explores its significance in terms of classical and contemporary rhetorical theory, as well as the composition classroom. In the process, I attempt to contribute to reestablishing sophistry and rhetoric within our contemporary cultural milieu. More specifically, the dissertation is organized into five main parts: The first chapter offers an introduction to and thorough background of the sophists in ancient and classical Greece; the second chapter reviews the scholarship about the sophists, as well as that on Mario Untersteiner …

Cardiovascular Risk Factors For Mild Cognitive Impairment, Michael Malek-Ahmadi

USF Tampa Graduate Theses and Dissertations

The relationship between cardiovascular conditions and the presence of Alzheimer's disease (AD) has been well-documented in a number of recent studies. Generally, the presence of cardiovascular conditions such as high total cholesterol and hypertension have been shown to significantly increase the risk for the development of AD. Given the results of these studies, it is possible that these same risk factors might also increase the risk of developing mild cognitive impairment (MCI). An analysis of 216 subjects (119 cognitively normal (CN), 77 aMCI, 20 naMCI) found that after adjusting for age, education, ethnicity, and gender, only hemoglobin A1c (HbA1c) showed …

Program Satisfaction, School Climate Perceptions, And Psychoeducational Experiences In College Preparatory Programs: A Comparison Of Caucasian And Ethnic Minority Students, Yanique T. Matthews

USF Tampa Graduate Theses and Dissertations

The current study focused on the extent to which participation in academically rigorous college preparatory programs, International Baccalaureate (IB) and the Advanced Placement (AP) particularly, impacts students from racially diverse backgrounds (Caucasian, African American, Asian American and Hispanic/Latino American). Student outcomes of interest included the program satisfaction, school climate perceptions (relationships with peers and teachers), and psychoeducational adjustment (academic and mental health functioning). The experiences of 381 college preparatory participants were also compared to 143 general education peers and subjected to a series of MANOVAs and ANOVAs. General findings indicated that, regardless of the student's racial identity, students in AP …

An Evaluation Of The Influence Of Case Method Instruction On The Reflective Thinking Of Msw Students, Marleen Milner

USF Tampa Graduate Theses and Dissertations

Social work practice requires that graduates be prepared to deal with complex, multifaceted problems which cannot be defined completely, do not have absolute, correct answers and can be approached from multiple perspectives. This study evaluated the influence of case-based instruction on MSW students' reflective judgment, an aspect of critical thinking associated with the ability to reason through ill-structured problems. (King, Wood, & Mines, 1990). The Reflective Judgment Model, which describes a developmental continuum based upon epistemic assumptions regarding the source and justification of knowledge claims, served as the theoretical framework for the assessment of reflective thinking in this mixed methods …

Riding The Winds Of Their Interest: Exploring The Teachable Moment In College Classrooms, Nancy Fosdick Mills

USF Tampa Graduate Theses and Dissertations

The phrase "teachable moment" has a taken-for-granted connotation of readiness to learn, but has been rarely defined and researched in the literature of higher education. This study described faculty members' experiences of teachable moments in their undergraduate classrooms. This included the conditions in which they emerge, and the decision-making processes used by faculty members to determine if and how to pursue such moments. If professors have opportunities to clarify their understandings of such moments, the ability to capitalize on otherwise unplanned teaching opportunities may be enhanced. Seventeen experienced social science and humanities faculty members teaching undergraduate classes at a large …

Analysis Of Mass Transfer By Jet Impingement And Study Of Heat Transfer In A Trapezoidal Microchannel, Ejiro Stephen Ojada

USF Tampa Graduate Theses and Dissertations

This thesis numerically studied mass transfer during fully confined liquid jet impingement on a rotating target disk of finite thickness and radius. The study involved laminar flow with jet Reynolds numbers from 650 to 1500. The nozzle to plate distance ratio was in the range of 0.5 to 2.0, the Schmidt number ranged from 1720 to 2513, and rotational speed was up to 325 rpm. In addition, the jet impingement to a stationary disk was also simulated for the purpose of comparison. The electrochemical fluid used was an electrolyte containing 0.005moles per liter potassium ferricyanide (K3(Fe(CN6)), 0.02moles per liter ferrocyanide …

Visualizing Sound: A Musical Composition Of Aural Architecture, James Pendley

USF Tampa Graduate Theses and Dissertations

We depend on our collective senses in order to rationalize and negotiate space. Unfortunately, sound and acoustics has become a secondary concern to that of the visual perception in architecture. The initial design intent for many modern performance spaces and music education space, for about the past one-hundred years, has not been driven by sound or acoustics, as a consequence the visual perception has become the major infl uence. Prior to modern acoustical applications, performance spaces have been designed for the essence of sound and the form and function had no divisible lines, but with amplifi cation of sound and …

Classroom Discourse And Teacher Talk Influences On English Language Learner Students' Mathematics Experiences, Mariana M. Petkova

USF Tampa Graduate Theses and Dissertations

This study examined the features of the classroom discourse in eight Algebra I classes from two urban high schools with diverse student populations. In particular, by using the discursive analysis perspective, the type of communication between teachers and students was examined. The study investigated to what extent teachers' patterns of discourse change as a result of the number of ELLs present or their particular teaching experiences and ESOL endorsement. Furthermore, the impact of teachers' cultural and linguistic backgrounds upon ELLs' mathematics experiences was explored, particularly the teachers' patterns of discourse and adjustments to their teacher talk, or modifications of instructions …

A Hypergraph Regularity Method For Linear Hypergraphs, Shoaib Amjad Khan

USF Tampa Graduate Theses and Dissertations

Szemerédi's Regularity Lemma is powerful tool in Graph Theory, yielding many applications in areas such as Extremal Graph Theory, Combinatorial Number Theory and Theoretical Computer Science. Strong hypergraph extensions of graph regularity techniques were recently given by Nagle, Rödl, Schacht and Skokan, by W.T. Gowers, and subsequently, by T. Tao. These extensions have yielded quite a few non-trivial applications to Extremal Hypergraph Theory, Combinatorial Number Theory and Theoretical Computer Science. A main drawback to the hypergraph regularity techniques above is that they are highly technical. In this thesis, we consider a less technical version of hypergraph regularity which more directly …

Finding Confucianism In Scientology: A Comparative Analysis, John Albert Kieffer

USF Tampa Graduate Theses and Dissertations

Scientology holds considerable interest for scholars of new religious movements. As such, this study aims to contribute new data and insight to ongoing theoretical work within this area of religious studies scholarship. Engaged in this inquiry are the similarities between Scientology, the new religious movement founded in 1951 by L. Ron Hubbard (1911-1986), and the Chinese religion, Confucianism, which originates with the teachings of Confucius (551-479 BCE). Though Hubbard admits being influenced by eastern thinking such as Buddhism and Daoism in shaping his worldview, he specifically discounts Confucius as relevant in this regard. However, through comparisons between Scientology and Confucianism, …

Numerical Heat Transfer During Partially–Confined, Confined, And Free Liquid Jet Impingement With Rotation And Chemical Mechanical Planarization Process Modeling, Jorge C. Lallave-Cortes

USF Tampa Graduate Theses and Dissertations

No abstract provided.

Multiple Approaches To The Validation Of The Scores From The Study Anxiety Inventory, George Douglas Lunsford

USF Tampa Graduate Theses and Dissertations

The Study Anxiety Inventory (SAI), consisting of the factors of worry and emotionality, was developed to measure college students' self-reported levels of anxiety while studying for an exam. Data from 2002 undergraduate students from four colleges (Arts and Sciences, Engineering, Business, and Education) at a southeastern state university were used to evaluate the validity of the scores from the 16-item Study Anxiety Inventory. Results of confirmatory factor analyses for the two factor model, conducted separately for each college, indicated marginally acceptable fit for the data (median fit measures across the four colleges: CFI =.915, SRMR=.049, RMSEA=.098), a pattern that was …

Mixture Distributions With Application To Microarray Data Analysis, O'Neil Lynch

USF Tampa Graduate Theses and Dissertations

The main goal in analyzing microarray data is to determine the genes that are differentially expressed across two types of tissue samples or samples obtained under two experimental conditions. In this dissertation we proposed two methods to determine differentially expressed genes. For the penalized normal mixture model (PMMM) to determine genes that are differentially expressed, we penalized both the variance and the mixing proportion parameters simultaneously. The variance parameter was penalized so that the log-likelihood will be bounded, while the mixing proportion parameter was penalized so that its estimates are not on the boundary of its parametric space. The null …

Photography’S Creative Influence On Lewis Carroll’S Alice’S Adventures In Wonderland And Through The Looking Glass And What Alice Found There, Bridget Mahoney

USF Tampa Graduate Theses and Dissertations

Lewis Carroll's novels Alice's Adventures in Wonderland and Through the Looking Glass and What Alice Found There share many characteristics with the author's photographs. Both Carroll's portraits and literature utilize dreamlike imagery to move beyond the present time and space into a dream world. The similar imagery demonstrates an important creative link between Carroll's novels and photographs. The creation of Carroll's masterpiece, Alice's Adventures in Wonderland and its sequel, Through the Looking Glass and What Alice Found There, creatively depended on the photographic images Carroll produced. Utilizing the four step process of creativity generally accepted by psychologists, Carroll's photographs are …