Digital Commons Network^™

Baseband Receiver Algorithms For 4g Co-Channel Femtocells, Mustafa Sahin

USF Tampa Graduate Theses and Dissertations

The growing interest for high data rate wireless communications over the last few decades gave rise to the emergence of a number of wideband wireless systems. The resulting scarcity of frequency spectrum has been forcing wireless system designers to develop methods that will push the spectral elciency to its limit. One such method is to have multiple systems utilize the same spectrum by allowing some unavoidable interference to occur between them. The idea of co-channel systems is tested in the industrial, scientific and medical (ISM) bands and it is found to be a very beneficial approach. Therefore, it can be …

Optimization And Characterization Of Lab-On-A-Chip Elements: Microfluidic Chambers And Microneedles, Puneet Khanna

USF Tampa Graduate Theses and Dissertations

In this work, MEMS based fabrication is used to engineer multifaceted enhancements to microfluidic systems such as lab-on-a-chip devices. Two specific elements of microfluidic systems are the focus of this study: microfluidic chambers and microneedles. Microfluidic chambers, which are back-end passive elements, via proposed material and structural modifications, are shown to exhibit reduced non-specific DNA binding and enable increased cell lysis efficiency. Microneedles, which are front-end interfacing elements, have been fabricated in silicon and in silicon dioxide varieties. The geometry of silicon microneedles has been varied via DRIE processing to yield sharpened tips. Sharpening of microneedle tips provides reduced skin …

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 …

The Effects Of Reinforcement Magnitude And Session Length On Stereotypical Behavior Of An Adolescent With Autism, Spiro Kotsios

USF Tampa Graduate Theses and Dissertations

Functional Analysis is an important component of creating a treatment plan for individuals with autism. A concern of functional analysis is that it might not match the natural environment in which the problem behavior occurs. Dimensions such as varying reinforcement duration and session length may affect response rates during functional analyses in natural settings. This study investigated if varying reinforcement duration and session length during functional analyses would affect the identification of the function of problem behavior across assessors, and the intervention designed based on the functional analyses would be effective in reducing stereotypic behavior and teaching communicative skills of …

Correlates Of Attitudes Toward Behavioral Health Services Among Older Primary Care Patients, Nancy Bridger Lynn

USF Tampa Graduate Theses and Dissertations

Research suggests that more than ten percent of older adults experience behavioral health problems (including mental health problems and/or substance abuse). However, very few actually receive care from a behavioral health care provider or even a primary care provider. One major barrier to accessing and receiving care is the feeling of perceived stigma commonly associated with behavioral health problems. The present study examined the relationships among attitudinal variables, feelings of stigma, and behavioral health outcomes over time in an elderly population with the secondary analysis of data collected for a previously implemented research study, the Primary Care Research in Substance …

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 …

Laser Assisted Telerobotic Control For Remote Manipulation Activities, Karan Khokar

USF Tampa Graduate Theses and Dissertations

The effort in this work has been to innovatively use range information from a laser sensor mounted on the end effector of a remote robotic arm in a telerobotic system to assist the user in carrying out remote tasks in unstructured environments. Assistance is provided in the form of Traded Supervisory Control where the human is involved in high level activities such as decision making and the machine generates task plans and executes tasks autonomously using laser data and machine intelligence. In this way human planning and high level decision making capabilities are combined with machine computational and precision task …

The Impact Of Wearable Weights On Perceptual Reponses To Treadmill Walking, Ashley T. Kuczynski

USF Tampa Graduate Theses and Dissertations

The growing public health burden associated with insufficient physical activity has resulted in the development of numerous health initiatives and products aimed at stabilizing and reversing the negative trends reported in epidemiological literature. A relatively novel product that has only recently made its way to the market are wearable weights. These products are designed to be worn on the lower legs and arms along with regular clothing as a means to increase caloric expenditure. However, no research to date has tested the efficacy of this product. PURPOSE: Compare psychological responses within bouts of aerobic exercise that vary on intensity and …

Sympathy For The Devil: A Character Analysis Of Gibreel Farishta In Salman Rushdie’S The Satanic Verses, Catherine Mary Lafuente

USF Tampa Graduate Theses and Dissertations

Salman Rushdie's The Satanic Verses created a major controversy when published in 1988, much like the controversy that Nikos Kazantzakis's novel The Last Temptation of Christ caused in 1951. Kazantzakis's work upset many Christians due to the controversial characterization of Jesus, who in the novel engages in sexual activities and other behaviors that many Christians find offensive. The Satanic Verses caused a similar uproar in the Umma, or Muslim community, resulting in book burnings, death threats, and even a murder. Most of the controversy focused on some the problematic characterizations of the Prophet Muhammad and his wives, such as using …

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 …

The Political Ecology Of Intestinal Parasites Among Nicaraguan Immigrants In Monteverde, Costa Rica, Jason D. Lind

USF Tampa Graduate Theses and Dissertations

Over the past 15 years Monteverde, Costa Rica has undergone rapid economic, social, political, and environmental change due to a flourishing ecotourism economy. While the effects of ecotourism development in Monteverde are many, two important consequences have been: 1) the immigration of Nicaraguan nationals to the area seeking low-skilled wage labor; and 2) compromised water resources management due to pollution and rapid population growth. The objective of this research is to investigate and identify the inter-relationships between ecotourism development in Monteverde and its affect on infectious diseases outcomes within the context of immigration and water resources management. Specifically, this dissertation …

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 …

The Babel Paradox, Michel Machado

USF Tampa Graduate Theses and Dissertations

The purpose of the book of Acts is still not well understood. Various interpretations have been offered in order to make sense of the narrative and its author's intention. What is the point of Luke's second book in portraying the evangelization of the Roman Empire as a rabid confrontation between Jewish followers of Jesus and other Jewish people? This matter calls for an examination of the relationship between the mother religion and the Jesus movement as it expands into a universal religion. Luke portrays the Jesus movement as the focus of divine favor, in contradistinction to the Jewish nation which …

Agricultural Nonpoint Source Pollution Management: Water Quality Impacts Of Balm Road Treatment Marsh, Hillsborough County, Florida, Sarah J. Malone

USF Tampa Graduate Theses and Dissertations

Balm Road Treatment Marsh is a 12 ha constructed wetland treatment system in south-central Hillsborough County, Florida created to improve water quality in Bullfrog Creek and ultimately Tampa Bay. The treatment system was designed to treat runoff from approximately 741 ha of upstream agricultural land prior to discharging into the creek, with the primary goals of reducing sediment and nutrient loads. Water quality data from four sites on Bullfrog Creek were analyzed to determine impacts to ambient water quality and pollutant load reductions downstream. Results were compared to the performance of other wetlands to treat both nonpoint and point source …

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 …

The Daily Show: Journalism’S Jester, Mark R. Mccarthy

USF Tampa Graduate Theses and Dissertations

The social meaning of television news has been under transformation since the successes of cable news in the final years of the previous century. In their attempts to preserve viewership and to remain relevant, traditional broadcast news outlets increasingly emulate the conventions of cable news. Instead of retaining audiences, the result has been declining news content and a continued loss of viewers. Amid these industry transformations, the concept of "journalist" continues to undergo change. This evolution of the news allows for a decidedly unique response to news programming in The Daily Show With Jon Stewart. Though advertised as a half-hour …

Trophic Enrichment Patterns Of Δ13C In Organic Matter Of Molluscan Shell: Implications For Reconstructing Ancient Environments And Food Webs, Julie Mcknight

USF Tampa Graduate Theses and Dissertations

Shell organic matrix proteins in fossils are valuable geochemical archives for studying ancient environments and food webs. Compound-specific studies of stable carbon isotope ratios offer particularly good resolution of trophic level of consumers and the identities of primary producers and can be used to detect diagenetic alteration of isotopic ratios. To interpret compound specific isotope data, however, controlled diet studies in the laboratory are needed to reveal trophic enrichment patterns of ¹³C in tissues and shell organic matter.

This study examines the relationship between δ¹³C of 11 amino acids in diet, soft tissues, and shell organic matter …

Identity Negotiation: The Perspective Of Asian Indian Women, Pangri Mehta

USF Tampa Graduate Theses and Dissertations

Traditional Indian cultural narratives are pervasive and serve to typify personal identity and experience. These cultural narratives portray Indian women as a wife and mother, nurturing, obedient, forbearing, soft-spoken, and the primary transmitters of the ethnic culture. American culture, on the other hand, encourages independence, individualism and a more elastic view towards gender. As assimilation theory suggests, Asian Indians in the United States are likely to assimilate at least some degree into American society. Accordingly, these narratives make up the cultural identity of Indian women in the United States. The contrasting cultural narratives shape the identities of Indian women residing …

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 …

Giving Birth In A Different Country: Bangladeshi Immigrant Women’S Childbirth Experiences In The U.S., Mst Khadija Mitu

USF Tampa Graduate Theses and Dissertations

Immigrant women often lack the social support and help from extended family and other social relationships, which is very significant during the pregnancy, delivery, and postnatal period. This research was conducted among Bangladeshi immigrant women living in the United States, in order to understand their experiences during pregnancy and childbirth: how they coped with the settings of a different country during that period, and how they felt about this situation. While there are several studies on immigrant women and maternal health issues in anthropology, to my knowledge, there have been none that focused specifically on the childbirth experiences of Bangladeshi …

Time-Resolved Thermodynamic Studies Of Heme Signaling Proteins And Model Systems, Audrey Mokdad

USF Tampa Graduate Theses and Dissertations

Heme-based gas sensor proteins have the ability to sense diatomic molecules such as O2 (FixL, EcDos or HemAT), CO (CooA, a CO-sensing protein of Rhodospirillum rubrum) and NO (guanylate cyclase) molecules and subsequently regulate numerous important biological processes in prokaryotic and eukaryotic organisms. The sensing function of these proteins is initiated by the binding of an effector (i.e., O2, CO, etc5) to the heme iron which then leads to a cascade of conformational events which gives rise to changes in kinase activity, DNA-binding activity, etc...

In order to better understand the mechanism heme-based signaling, time resolved photothermal methods as well …

Facilitating Youth Participatory Action Research: Reflections, Strategies, And Applications At The Institute For Community Research, Aki Nakanishi

USF Tampa Graduate Theses and Dissertations

The present study investigates the instructional and organizational strategies used by participatory action research (PAR) facilitators at the Summer Youth Research Institute of the Institute for Community Research in Hartford, Connecticut (US), a six-week program that engages urban multi-ethnic teenagers in youth participatory action research (YPAR) for social change. During the last three decades, PAR has proven to be a very effective methodology for creating sustainable solutions to social problems by involving community members in the process of identifying, investigating, and collectively resolving them. In particular, YPAR provides young people with the opportunity to study social problems that affect themselves …

The Realization Of The Speech Act Of Refusal In Egyptian Arabic By American Learners Of Arabic As A Foreign Language, Nader Morkus

USF Tampa Graduate Theses and Dissertations

This study investigated how the speech act of refusal is realized in Egyptian Arabic by intermediate and advanced American learners of Arabic as a foreign language. It also compared the performance of the learners to that of native speakers of Egyptian Arabic and native speakers of American English. The study aimed to investigate the relationship between the learners' language proficiency and their pragmatic competence. In addition, it examined the extent of pragmatic transfer from L1 and whether there was a relationship between the degree of pragmatic transfer and the level of L2 proficiency. The study also examined how refusals are …

Architectural Chastity Belts: The Window Motif As Instrument Of Discipline In Fifteenth-Century Italian Conduct Manuals And Art, Jennifer Megan Orendorf

USF Tampa Graduate Theses and Dissertations

As the Italian thirst for excellence and knowledge burgeoned throughout the Quattrocento, the genre of instructional literature responded accordingly to social demands. Offering advice on a wide range of experience from the quotidian to the extraordinary, from superstition to scientific, conduct manuals appealed to readers of all Italian social classes. Investigating the relationship between this body of literature and the lives of contemporary women, this paper will focus specifically on those manuals which prescribe behaviors for women, and will investigate the reception of these precepts and the extent in which these notions informed and transformed women's lives.

In order to …

The Examination Of The Implementation Of The Second Step Program In A Public School System, Lynn Pedraza

USF Tampa Graduate Theses and Dissertations

As school districts integrate evidence-based prevention programs into their daily regime, they may struggle with implementing these programs with fidelity. This is a multi-method, multi-source, retrospective explanatory study of the implementation factors associated with program installation and partial implementation of an evidence-based violence prevention program, Second Step, in six elementary schools within a large urban school district. The goals of this study were to provide a better understanding of (a) the factors that support implementation of evidence-based programs in K-12 public schools, (b) the factors that constrain implementation, and (c) how developers and researchers might facilitate the application of research …

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 …

Effects Of Dialect Use On The Fast Mapping Skills Of African American School-Age Children, Jessica Pierre

USF Tampa Graduate Theses and Dissertations

Previous research has shown that African American children are prone to score lower on vocabulary tests when compared to their white peers (Champion et al., 2003; Qi et al., 2006; Restrepo et al., 2006; Thomas-Tate et al., 2006; Washington & Craig, 1992). The dialect spoken by these children may be affecting their performance. However, little is known about how dialect use interacts with word learning abilities. The current study continues a project initiated by Wyatt, Bahr, and Silliman (2007) which examined dialectal influences on the fast mapping of novel stimuli in preschool children. The participants in the current study were …

Cultural Visualization Through Architecture, Fernando Pizarro

USF Tampa Graduate Theses and Dissertations

As an important part of our lives, stories help us to form both our personal identities and the identities of the social groups that make up our society. They facilitate us to be in contact with our beliefs, our feelings, our knowledge, our perception, and what is significant to us. Similarly, we understand those very things from the stories of others. These stories are obtained through different ways: family, friends, literature, poetry, religion, teachers, movies, art, and so on. Through these, our culture is born and sustained. There is no doubt that architecture is an important defining element of our …