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2010

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Accelerating Optical Airy Beams, Georgios Siviloglou Jan 2010

Accelerating Optical Airy Beams, Georgios Siviloglou

Electronic Theses and Dissertations

Over the years, non-spreading or non-diffracting wave configurations have been systematically investigated in optics. Perhaps the best known example of a diffraction-free optical wave is the so-called Bessel beam, first suggested and observed by Durnin et al. This work sparked considerable theoretical and experimental activity and paved the way toward the discovery of other interesting non-diffracting solutions. In 1979 Berry and Balazs made an important observation within the context of quantum mechanics: they theoretically demonstrated that the Schrodinger equation describing a free particle can exhibit a non-spreading Airy wavepacket solution. This work remained largely unnoticed in the literature-partly because such …

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Misalignment Induced Nodal Aberration Fields And Their Use In The Alignment Of Astronomical Telescopes, Tobias Schmid Jan 2010

Misalignment Induced Nodal Aberration Fields And Their Use In The Alignment Of Astronomical Telescopes, Tobias Schmid

Electronic Theses and Dissertations

Following the foundation of aberration theory for rotationally symmetric optical systems established by Seidel, Schwarzschild, Burch, Conrady, Buchdahl, and in its most useful form H.H. Hopkins, Shack, Buchroeder, Thompson, and Rogers developed a vectorial form of the wave aberration theory that enables addressing optical systems without symmetry. In this research, a vectorial theory is utilized and extended for the alignment of two- and three-mirror astronomical telescopes, including the effects of pointing changes and astigmatic figure errors. Importantly, it is demonstrated that the vectorial form of aberration theory, also referred to as nodal aberration theory, not only provides valuable insights but …

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The Experiences Of Health Care Providers Providing Comfort For Nursing Home Patients At The End Of Life, Herma Baker Jan 2010

The Experiences Of Health Care Providers Providing Comfort For Nursing Home Patients At The End Of Life, Herma Baker

Electronic Theses and Dissertations

Research shows that healthcare providers (HCPs) are not adequately prepared to provide comfort care for patients who are at the end of life. Since the 1990s, numerous legislative, research, and clinical initiatives have addressed concerns about improving care at the end of life. The purpose of this study was to describe the experiences of HCPs providing comfort for patients in the nursing home who are at the end of life. This study focused on physicians, nurse practitioners, nurses and nurses' aides at a central Florida nursing home. A descriptive qualitative design was done utilizing a focus group discussion, individual interviews, …

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Comparison Of Arnp And Physician Malpractice In States With And Without Controlled Substance Prescribing Authority, Deborah Chandler Jan 2010

Comparison Of Arnp And Physician Malpractice In States With And Without Controlled Substance Prescribing Authority, Deborah Chandler

Electronic Theses and Dissertations

Florida is one of two states that do not allow ARNPs to prescribe controlled substances. The Florida Legislature has expressed concern regarding the safety of ARNPs prescribing controlled substances. The purpose of this study was to compare malpractice rates of ARNPs and physicians in states with and without controlled substance prescribing. The design was a direct comparison of malpractice rates in states with and without ARNP controlled substance prescriptive authority. Comparison of malpractice claims was made between physicians (MDs and DOs collectively) and ARNPs in the United States and by state ARNP prescribing authority. Comparison of malpractice claims was also …

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The Incidence And Epidemiologic Factors Of Community-Acquired Methicillin-Resistant Staphylococcus Aureus Skin And Soft Tissue I, Ivonne Johnson Jan 2010

The Incidence And Epidemiologic Factors Of Community-Acquired Methicillin-Resistant Staphylococcus Aureus Skin And Soft Tissue I, Ivonne Johnson

Electronic Theses and Dissertations

Methicillin-resistant Staphylococcus aureus (MRSA) is a serious public health problem nationwide, threatening to develop into an epidemic. Many of these patients are presenting to their primary care clinics with skin and soft tissue infections (SSTIs). The CDC has reported that in 2005, MRSA was responsible for an estimated 94,000 life-threatening infections and 16,650 deaths. The purpose of this study is to estimate the incidence of CA-MRSA within a specific family practice in Florida and to identify epidemiologic factors, classify antibiotic susceptibility patterns, and evaluate patient education in regard to disease management and prevention. This study was a descriptive, epidemiologic, three-year …

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Advanced Practice Nursing In The Faith Community Setting: A Case Study, Chianta Lindsey Jan 2010

Advanced Practice Nursing In The Faith Community Setting: A Case Study, Chianta Lindsey

Electronic Theses and Dissertations

The purpose of this case study is to demonstrate the effectiveness of an Advanced Practice Nurse in providing spiritual and nursing care within a faith community setting. The study will describe the process of developing a Parish Nurse program using a Nurse Practitioner to offer wholistic health care to parishioners. It will also illustrate the collaborative process of developing a free health center within a faith based organization, using the Nurse Practitioner to manage the health center and deliver health care services. In order to demonstrate the need for parish nurse care, the case study used an anonymous survey to …

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The Impact Of An Interdependent Conferencing Activity In An Online Rn-Bsn Practicum Clinical Conference On Psychologocial Sense Of Community, Barbara Lange Jan 2010

The Impact Of An Interdependent Conferencing Activity In An Online Rn-Bsn Practicum Clinical Conference On Psychologocial Sense Of Community, Barbara Lange

Electronic Theses and Dissertations

RN-BSN students enrolled in a clinical course often have limited or no interaction with other students within the course due to geographic distance and individual preceptor assignments. Learning is often restricted to a student and his/her preceptor and instructor. Geographic and physical distance factors inhibit a student's perception of connectedness and learning. Interdependent interaction between peers, the instructor, and the professional community may increase student achievements and enhance a sense of connectedness. The purpose of this study was to assess the effects of an Interdependent Conferencing Activity (ICA) in an online clinical conference on RN-BSN students' Psychological Sense of Community …

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Near-Field Optical Interactions And Applications, David Haefner Jan 2010

Near-Field Optical Interactions And Applications, David Haefner

Electronic Theses and Dissertations

The propagation symmetry of electromagnetic fields is affected by encounters with material systems. The effects of such interactions, for example, modifications of intensity, phase, polarization, angular spectrum, frequency, etc. can be used to obtain information about the material system. However, the propagation of electromagnetic waves imposes a fundamental limit to the length scales over which the material properties can be observed. In the realm of near-field optics, this limitation is overcome only through a secondary interaction that couples the high-spatial-frequency (but non-propagating) field components to propagating waves that can be detected. The available information depends intrinsically on this secondary interaction, …

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Uncertainty, Identification, And Privacy: Experiments In Individual Decision-Making, David Rivenbark Jan 2010

Uncertainty, Identification, And Privacy: Experiments In Individual Decision-Making, David Rivenbark

Electronic Theses and Dissertations

The alleged privacy paradox states that individuals report high values for personal privacy, while at the same time they report behavior that contradicts a high privacy value. This is a misconception. Reported privacy behaviors are explained by asymmetric subjective beliefs. Beliefs may or may not be uncertain, and non-neutral attitudes towards uncertainty are not necessary to explain behavior. This research was conducted in three related parts. Part one presents an experiment in individual decision making under uncertainty. Ellsberg's canonical two-color choice problem was used to estimate attitudes towards uncertainty. Subjects believed bets on the color ball drawn from Ellsberg's ambiguous …

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Achievement For Advancement Via Individual Determination (Avid) Students And Non-Avid Students In Select Central Florida High Schools In 2007-2009: A Comparative Study, Linda Connors Jan 2010

Achievement For Advancement Via Individual Determination (Avid) Students And Non-Avid Students In Select Central Florida High Schools In 2007-2009: A Comparative Study, Linda Connors

Electronic Theses and Dissertations

The focus of this study was to examine the relationship of student participation in the Advancement Via Individual Determination (AVID) program and student academic performance. More specifically, this study was conducted to determine if there was a mean difference in student performance on the Florida Comprehensive Assessment Test (FCAT) in mathematics, reading, and writing between students who participated in the AVID program during their first two years of high school and students who had similar demographics (e.g., ethnicity, gender, and economic status) but did not participate in the AVID program for 2007-2009. The population for this study consisted of students …

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Comparison Of Learning Experiences And Outcomes Between A Serious Game-Based And Non-Game-Based Online American History Course, Taryn Hess Jan 2010

Comparison Of Learning Experiences And Outcomes Between A Serious Game-Based And Non-Game-Based Online American History Course, Taryn Hess

Electronic Theses and Dissertations

The use of online courses continues to increase despite the small amount of research that exists on the effectiveness of online educational environments. The little research that has been conducted has focused on evaluating factors taken into consideration during the adoption of online learning environments. One notable benefit often cited is the ability to incorporate multimedia such as video games. Although game researchers and developers are pushing for the use of video games for educational purposes, there is a lack of research on the effectiveness of serious video games. When paring the increasing use of online educational environments, the push …

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The Cytokine, Interleukin-7, Transcriptionally Regulates The Gene Expression Of The Hexokinase Ii To Mediate Glucose Utilization, Mounir Chehtane Jan 2010

The Cytokine, Interleukin-7, Transcriptionally Regulates The Gene Expression Of The Hexokinase Ii To Mediate Glucose Utilization, Mounir Chehtane

Electronic Theses and Dissertations

The cytokine, interleukin-7 (IL-7), has essential growth activities that maintain the homeostatic balance of the immune system. Little is known of the mechanism by which IL-7 signaling regulates metabolic activity in support of its vital function in lymphocytes. We observed that IL-7 deprivation caused a rapid decline in ATP levels that were attributable to loss of intracellular glucose retention. To identify the transducer of the IL-7 metabolic signal, we examined the expression of three important regulators of glucose metabolism, the glucose transporter, GLUT-1, and two glycolytic enzymes, Hexokinase II (HXKII) and phosphofructokinase-1 (PFK1), using an IL-7-dependent T-cell line and primary …

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Interleukin-7 Differentially Regulates The Activation, Proliferation, And Homing Of T-Cells: Implications For Immunotherapy, Christina Kittipatarin Jan 2010

Interleukin-7 Differentially Regulates The Activation, Proliferation, And Homing Of T-Cells: Implications For Immunotherapy, Christina Kittipatarin

Electronic Theses and Dissertations

Interleukin-7 (IL-7) is an essential lymphocyte growth factor required for the survival and proliferation of mature T-cells. As a therapeutic agent, IL-7 has the potential to restore T-cell numbers following immune depletion and to promote immunity against cancers. While the survival function of IL-7 is well established, less is known about how it supports T-cell expansion, a critical feature of the immune response. To study the biological effects of IL-7 on T-cell growth, we developed an in vitro culture technique to expand T-cells ex vivo. A significant finding from our studies is that IL-7 did not induce the expansion of …

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Facial Emotion Recognition In Children With Asperger's Disorder And In Children With Social Phobia, Nina Wong Jan 2010

Facial Emotion Recognition In Children With Asperger's Disorder And In Children With Social Phobia, Nina Wong

Electronic Theses and Dissertations

Recognizing emotion from facial expressions is an essential skill for effective social functioning and establishing interpersonal relationships. Asperger's Disorder (AD) and Social Phobia (SP) are two clinical populations showing impairment in social skill and perhaps emotion recognition. Objectives: The primary objectives were to determine the uniqueness of facial emotion recognition abilities between children with AD and SP relative to typically developing children (TD) and to examine the role of expression intensity in determining recognition of facial affect. Method: Fifty-seven children (19 AD, 17 SP, and 21 TD) aged 7-13 years participated in the study. Reaction times and accuracy were measured …

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Low Cost Production Of Proinsulin In Tobacco And Lettuce Chloroplasts For Injectable Or Oral Delivery Of Functional Insulin And, Diane Burberry Jan 2010

Low Cost Production Of Proinsulin In Tobacco And Lettuce Chloroplasts For Injectable Or Oral Delivery Of Functional Insulin And, Diane Burberry

Electronic Theses and Dissertations

Current treatment for type I diabetes includes delivery of insulin via injection or pump, which is highly invasive and expensive. The production of chloroplast-derived proinsulin should reduce cost and facilitate oral delivery. Therefore, tobacco and lettuce chloroplasts were transformed with the cholera toxin B subunit fused with human proinsulin (A, B, and C peptides) containing three furin cleavage sites (CTB-PFx3). Transplastomic lines were confirmed for site-specific integration of transgene and homoplasmy. Old tobacco leaves accumulated proinsulin up to 47% of total leaf protein (TLP). Old lettuce leaves accumulated proinsulin up to 53% TLP. Accumulation was so stable that up to …

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Project Child And Non-Project Child School Performance On Fcat Reading, Mathematics And Writing, Julie Chappell Jan 2010

Project Child And Non-Project Child School Performance On Fcat Reading, Mathematics And Writing, Julie Chappell

Electronic Theses and Dissertations

Project CHILD (Changing How Instruction for Learning is Delivered) provides an avenue for educational change using a triangulated approach. Using data from the Florida Department of Education, this research studies the Project CHILD learning approach on preparing students for success on portions of the Florida Comprehensive Assessment Test (FCAT) using results from fifteen charter schools in the state of Florida, seven participating in Project CHILD and eight non-participating charter schools for the 2008-2009 school-year. Dispersion statistics such as range and standard deviation as well as independent t tests are computed to compare the percentage of students in grades three to …

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Understanding Parent's Perspectives Of Their Kindergarten Children's Transition To School, Pamela Anderson Jan 2010

Understanding Parent's Perspectives Of Their Kindergarten Children's Transition To School, Pamela Anderson

Electronic Theses and Dissertations

This study investigates possible reasons why parent's perceive that their kindergarten child complains about school. Using data in the parent questionnaires from the Early Childhood Longitudinal Study ' Kindergarten Class of 1998-1999, this research looks at a nationally representative sample of boys and girls and specifically targets those children whose parents indicated that they complained more than one time per week during the first two months of school. Looking at factors both from home, including socioeconomic status, maternal education levels and family structure, and from school, including length of the kindergarten day, transition practices received by the child and prior …

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Numerical Computations For Pde Models Of Rocket Exhaust Flow In Soil, Brian Brennan Jan 2010

Numerical Computations For Pde Models Of Rocket Exhaust Flow In Soil, Brian Brennan

Electronic Theses and Dissertations

We study numerical methods for solving the nonlinear porous medium and Navier-Lame problems. When coupled together, these equations model the flow of exhaust through a porous medium, soil, and the effects that the pressure has on the soil in terms of spatial displacement. For the porous medium equation we use the Crank-Nicolson time stepping method with a spectral discretization in space. Since the Navier-Lame equation is a boundary value problem, it is solved using a finite element method where the spatial domain is represented by a triangulation of discrete points. The two problems are coupled by using approximations of solutions …

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The Crime Of Coming Home: British Convicts Returning From Transportation In London, 1720-1780, Christopher Teixeira Jan 2010

The Crime Of Coming Home: British Convicts Returning From Transportation In London, 1720-1780, Christopher Teixeira

Electronic Theses and Dissertations

This thesis examines convicts who were tried for the crime of 'returning from transportation' at London's Old Bailey courthouse between 1720 and 1780. While there is plenty of historical scholarship on the tens of thousands of people who endured penal transportation to the American colonies, relatively little attention has been paid to convicts who migrated illegally back to Britain or those who avoided banishment altogether. By examining these convicts, we can gain a better understanding of how transportation worked, how convicts managed to return to Britain, and most importantly, what happened to them there. This thesis argues that convicts resisted …

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Sisterhood Articulates A New Definition Of Moral Female Identity: Jane Austen's Adaptation Of The Eighteenth-Century Tradition, Katherine Curtis Jan 2010

Sisterhood Articulates A New Definition Of Moral Female Identity: Jane Austen's Adaptation Of The Eighteenth-Century Tradition, Katherine Curtis

Electronic Theses and Dissertations

Writing at a moment of ideological crisis between individualism and hierarchical society, Jane Austen asserts a definition of moral behavior and female identity that mediates the two value systems. I argue that Austen most effectively articulates her belief in women's moral autonomy and social responsibility in her novels through her portrayal of sisterhood. Austen reshapes the stereotype of sisters and female friendships as dangerous found in her domestic novel predecessors. While recognizing women's social vulnerability, which endangers female friendship and turns it into a site of competition, Austen urges the morality of selflessly embracing sisterhood anyway. An Austen heroine must …

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But This Is What I See; This Is What I See: Re-Imagining Gendered Subjectivity Through The Woman Artist In Phelps, Johnstone, And Woolf, Heather Wayne Jan 2010

But This Is What I See; This Is What I See: Re-Imagining Gendered Subjectivity Through The Woman Artist In Phelps, Johnstone, And Woolf, Heather Wayne

Electronic Theses and Dissertations

Since the publication of Laura Mulvey's influential article 'Visual Pleasure and Narrative Cinema,' in which she identifies the pervasive presence of the male gaze in Hollywood cinema, scholars have sought to account for the female spectator in her paradigm of gendered vision. This thesis suggests that women writers have long debated the problem of the female spectator through literary depictions of the female artist. Women writers of the nineteenth and twentieth centuries'including Elizabeth Stuart Phelps, Edith Johnstone, and Virginia Woolf'recognized the power of the woman artist to undermine the trope of the male gazing subject and a passive female object. …

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Understanding The Female Conceptualization Of Sexual Addiction And The Role Of Addiction Treatment, Megan Douglass Jan 2010

Understanding The Female Conceptualization Of Sexual Addiction And The Role Of Addiction Treatment, Megan Douglass

Electronic Theses and Dissertations

Beginning with the diagnosis of nymphomania in the 19th Century, there has been widespread and continued interest across the mental health and bio-medical realm of what constitutes normality of female sexual behavior, and of the boundary at which sexual desire is deemed to be excessive, and thus abnormal. However, research questions that specifically investigate the subjective female voice and perspective in considerations of so-called hypersexuality or sex addiction remain understudied. This research project proposes to examine the cultural pathways and systemic foundations which have historically in the West problematized female sexuality by investigating women's own perceptions of sexual addiction and …

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Paleopathology In Ancient Eygpt: Evidence From The Sites Of Dayr Al-Barsha And Sheikh Said, Cindy Malnasi Jan 2010

Paleopathology In Ancient Eygpt: Evidence From The Sites Of Dayr Al-Barsha And Sheikh Said, Cindy Malnasi

Electronic Theses and Dissertations

For centuries, people have been fascinated with how the ancient Egyptians lived, and particularly how they died. Although Egyptologists in the past had a greater interest in the treasures that accompanied the dead, there has now been a shift in focus on the actual ancient Egyptians themselves and their ways of life. Recognizing the health and disease status of ancient Egyptians has become particularly important. The aim of this research project is to document the paleopathology of the individuals from the sites of Dayr al-Barsha and Sheikh Said encompassing the Old Kingdom (2686 - 2160 BC), the First Intermediate Period …

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Designing For Multicultural And International Audiences: Creating Culturally-Intelligent Visual Rhetoric And Overcoming Ethnocen, Bridget Moore Jan 2010

Designing For Multicultural And International Audiences: Creating Culturally-Intelligent Visual Rhetoric And Overcoming Ethnocen, Bridget Moore

Electronic Theses and Dissertations

Various cultures interpret visual rhetoric differently; therefore, technical communicators must adjust their rhetoric accordingly by creating effective visual rhetoric for their international and multicultural audiences. Although there is a great deal of research in the field regarding how to create effective visual rhetorical rhetoric, this research often fails to take into international and multicultural audiences into consideration. Many visual rhetoric solutions proposed in technical communication involve 'catch all' approaches that do little to communicate to people of non-Western cultures and can even serve to offend or confuse international and multicultural audiences. These solutions are generated by a globalization mindset, but …

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The Highland Soldier In Georgia And Florida: A Case Study Of Scottish Highlanders In British Military Service, 1739-1748, Scott Hilderbrandt Jan 2010

The Highland Soldier In Georgia And Florida: A Case Study Of Scottish Highlanders In British Military Service, 1739-1748, Scott Hilderbrandt

Electronic Theses and Dissertations

This study examined Scottish Highlanders who defended the southern border of British territory in the North American theater of the War of the Austrian Succession (1739-1748). A framework was established to show how Highlanders were deployed by the English between 1745 and 1815 as a way of eradicating radical Jacobite elements from the Scottish Highlands and utilizing their supposed natural superiority in combat. The case study of these Highlanders who fought in Georgia and Florida demonstrated that the English were already employing Highlanders in a similar fashion in North America during the 1730s and 1740s. British government sources and correspondence …

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Engineering A New Form Of Enclosure: International Convergence In Gmo Regulation, Jessica Altif Jan 2010

Engineering A New Form Of Enclosure: International Convergence In Gmo Regulation, Jessica Altif

Electronic Theses and Dissertations

As society begins to recognize its impact on ecological systems, the belief that modern political institutions can offer a sense of control and certainty, as well as protect the health of its citizens, is increasingly questioned. In an era of uncertainty, faith in science and technology to alleviate industrial impacts on the environment is often embraced by policymakers yet questioned by the public who see the authoritative role of the sciences in the political sphere as contributing to global risk. The development of biotechnology, specifically genetically modified food, places an anthropocentric focus on resolving and/or adapting to environmental degradation, further …

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Have Nominating Conventions Lost Power?, Tyler Branz Jan 2010

Have Nominating Conventions Lost Power?, Tyler Branz

Electronic Theses and Dissertations

Do conventions still have relevance in the modern political world? Some call them glorified television infomercials for presidential candidates while others refer to them as admired pillars of American political history. Whichever viewpoints one identifies with, presidential conventions are interesting to study historically, and can be studied analytically. The following case studies examine the institution of the nominating convention: what they do, how they form, what they have accomplished and how they affect the voters. This study finds that conventions are still meaningful in American politics, particularly for affecting party unity, candidate image and, to a lesser degree, party platform.

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Women, Work And Welfare: A Case Study Of Germany, The Uk, And Sweden, Meredith Legg Jan 2010

Women, Work And Welfare: A Case Study Of Germany, The Uk, And Sweden, Meredith Legg

Electronic Theses and Dissertations

This thesis examines how different welfare state regimes affect gender relations by examining variations in welfare regimes and outcomes for women between Western European countries. The research seeks to understand how the diverse systems of social provision affect women: particularly with regard to their position in the labor market and in their ability to balance occupational and domestic work. Using a comparative, qualitative approach, I compare three Western European welfare states (Germany, the United Kingdom, and Sweden) to evaluate gender-relevant welfare policy with female employment rates, unemployment rates, and wage differentials. Welfare states and labor market policies affect outcomes for …

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Understanding The Split-Ticket Voter, Janelle Middents Jan 2010

Understanding The Split-Ticket Voter, Janelle Middents

Electronic Theses and Dissertations

This thesis will focus on split ticket voting. Split ticket voting refers to an aspect of voting behavior where the individual will cast votes for different political parties for different offices. Through the development of countless theories and utilizing data, political scientists have managed to shed some light as to why an individual may engage in split-ticket voting. However, many of these studies have been too narrow in their focus, for instance, relying on a specific election without taking into account some major variables that provide the foundation for voting behavior. The purpose of this study is to provide scholars …

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The Response Of Administrators And Instructors In The Orange County, Florida Public High School System To Dating Violence Preven, Denise Crisafi Jan 2010

The Response Of Administrators And Instructors In The Orange County, Florida Public High School System To Dating Violence Preven, Denise Crisafi

Electronic Theses and Dissertations

Adolescent dating violence occurs in high schools at an alarming rate. To educate adolescents about dating violence, some public high schools have incorporated prevention programs into their curriculum. These programs, which are predicated upon empiricism and behavioral theories, tend to produce limited results. In order to improve prevention programs, it has been suggested that schools should play a larger role in their development and implementation. However, dating violence studies have yet to examine how much school personnel know about adolescent dating violence and prevention strategies. The current study surveyed administrators and instructors at six public high schools in Orange County, …

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