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University of Central Florida

Electronic Theses and Dissertations

2011

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A Root Cause Analysis Of The Barriers To Transparency Among Physicians A Systemic Perspective, Bianca Perez Jan 2011

A Root Cause Analysis Of The Barriers To Transparency Among Physicians A Systemic Perspective, Bianca Perez

Electronic Theses and Dissertations

Transparency in healthcare relates to formally reporting medical errors and disclosing bad outcomes to patients and families. Unfortunately, most physicians are not in the habit of communicating transparently, as many studies have shown the existence of a large medical error information gap. Research also shows that creating a culture of transparency would mutually support patient safety and risk management goals by concomitantly reducing medical errors and alleviating the malpractice crisis. Three predictor variables are used to represent the various dimensions of the context just described. Perfectionism represents the intrapersonal domain, socio-organizational climate represents the interpersonal and institutional domains, and medico-legal …


Impulsivity And Attention-Deficit/Hyperactivity Disorder (Adhd) Testing Competing Predictions From The Working Memory And Behavioral Inhibition Models Of Adhd, Joseph S. Raiker Jan 2011

Impulsivity And Attention-Deficit/Hyperactivity Disorder (Adhd) Testing Competing Predictions From The Working Memory And Behavioral Inhibition Models Of Adhd, Joseph S. Raiker

Electronic Theses and Dissertations

Impulsivity is a hallmark of two of the three DSM-IV ADHD subtypes and is associated with myriad adverse outcomes. Limited research, however, is available concerning the mechanisms and processes that contribute to impulsive responding by children with ADHD. The current study tested predictions from two competing models of ADHD – working memory (WM) and behavioral inhibition (BI) – to examine the extent to which ADHD-related impulsive responding was attributable to model-specific mechanisms and processes. Children with ADHD (n = 21) and typically developing children (n = 20) completed laboratory tasks that provided WM (domaingeneral central executive [CE], phonological/visuospatial storage/rehearsal) and …


Age-Typing Across Occupations When, Where, And Why Age-Typing Exists, Michael Dennis Reeves Jan 2011

Age-Typing Across Occupations When, Where, And Why Age-Typing Exists, Michael Dennis Reeves

Electronic Theses and Dissertations

The present study sought to determine the direction and degree to which occupations representative of all major occupational categories are viewed as age-typed (i.e., more appropriate for older or younger workers). The 60 occupations examined were the 12 most common and familiar occupations in each of five occupational categories used by the U.S. Census Bureau. I randomly assigned 365 participants to one of three survey conditions. Participants rated the feature centrality, proportional representation, normative age, and optimal performance age of 20 of the 60 occupations and the age-type of 20 different occupations. Results showed that participants reliably rated the occupations …


Estimation For The Cox Model With Various Types Of Censored Data, Tonya Riddlesworth Jan 2011

Estimation For The Cox Model With Various Types Of Censored Data, Tonya Riddlesworth

Electronic Theses and Dissertations

In survival analysis, the Cox model is one of the most widely used tools. However, up to now there has not been any published work on the Cox model with complicated types of censored data, such as doubly censored data, partly-interval censored data, etc., while these types of censored data have been encountered in important medical studies, such as cancer, heart disease, diabetes, etc. In this dissertation, we first derive the bivariate nonparametric maximum likelihood estimator (BNPMLE) F[subscript n](t,z) for joint distribution function F[sub 0](t,z) of survival time T and covariate Z, where T is subject to right censoring, noting …


The Seaside Resort Towns Of Cape May And Atlantic City, New Jersey Development, Class Consciousness, And The Culture Of Leisure In The Mid To Late Victorian Era, Tatyana Ressetar Jan 2011

The Seaside Resort Towns Of Cape May And Atlantic City, New Jersey Development, Class Consciousness, And The Culture Of Leisure In The Mid To Late Victorian Era, Tatyana Ressetar

Electronic Theses and Dissertations

"Victorianism" is a highly controversial, sometimes ironic, term penned by historians throughout various works that has come to hold dramatic weight in both its meaning and its influence. Though the term is usually most closely associated with nineteenth century England, Victorianism was a highly influential movement in American culture simultaneously as well, specifically in the spheres of home, work, and play. Of those, "play," or leisure, is undoubtedly the least explored, especially before the latter decades of the twentieth century. Prior to this period, most literature about the Victorians, with the exception of a few works, only dealt with masculinity, …


A Paleopathological Assessment Of Osteoarthritis In The Lower Appendicular Joints Of Individuals From The Kellis 2 Cemetery In The Dakhleh Oasis, Egypt, Joshua B. Robin Jan 2011

A Paleopathological Assessment Of Osteoarthritis In The Lower Appendicular Joints Of Individuals From The Kellis 2 Cemetery In The Dakhleh Oasis, Egypt, Joshua B. Robin

Electronic Theses and Dissertations

Osteoarthritis (OA) is a degenerative pathological condition of the appendicular joints which affects the cartilage and underlying bone. OA is relatively common in both the archaeological and clinical context, and a significant amount of research has been conducted on this osteological condition. The purpose of this thesis is to assess the incidence, demographic prevalence, and general severity of hip and knee OA in a Roman-Christian period (50 A.D – 450 A.D) population sample from the Dakhleh Oasis, Egypt. The bioarchaeological sample originates from the Kellis 2 cemetery which is associated with the ancient town of Kellis. The town of Kellis …


A Comparison Of Eighth Grade Athletes And Non-Athletes Academic Achievement, Time Spent On Homework, Future Educational Goals, And Socioeconomic Status, John F. Shelby Jan 2011

A Comparison Of Eighth Grade Athletes And Non-Athletes Academic Achievement, Time Spent On Homework, Future Educational Goals, And Socioeconomic Status, John F. Shelby

Electronic Theses and Dissertations

This study examined the differences between eighth grade athletes and nonathletes in terms of mathematics and reading achievement based on standardized test scores from direct cognitive assessments in mathematics and reading. The data for this study came from the Early Childhood Longitudinal Study Kindergarten Class of 1998- 1999 (ECLS-K). Data were collected from student and parent surveys in conjunction with direct cognitive assessments. The research questions were as follows: 1. To what extent is there a difference in mathematics achievement between eighth grade athletes and non-athletes while controlling for self-reported future educational goals and socioeconomic status? 2. To what extent …


Searching For Meaningful Use Of Health Information Technology A Study Of Cardiovascular Disease Care In Veterans General Hospitals, Carey L. Thaldorf Jan 2011

Searching For Meaningful Use Of Health Information Technology A Study Of Cardiovascular Disease Care In Veterans General Hospitals, Carey L. Thaldorf

Electronic Theses and Dissertations

The cost of healthcare in the United States is on an upward trajectory towards an unsustainable level. In order to address this, Congress and the Obama Administration passed the American Recovery and Reinvestment Act (ARRA) of 2009 to begin the process of controlling these costs. Within the ARRA is the Health Information Technology for Economic and Clinical Health (HITECH) section which creates financial incentives to invest in Health Information Technology (HIT) and to develop a means to measure the Meaningful Use of specific functions of Electronic Health Records (EHRs). This research examines the widely used Joint Commission datasets to determine …


Heat Transfer And Friction Augmentation In A Narrow Rectangular Duct With Symmetrical And Non-Symmetrical Wedge-Shaped Turbulators, Michelle Valentino Jan 2011

Heat Transfer And Friction Augmentation In A Narrow Rectangular Duct With Symmetrical And Non-Symmetrical Wedge-Shaped Turbulators, Michelle Valentino

Electronic Theses and Dissertations

The need for cleaner and more fuel efficient means to produce electricity is growing steadily. Advancements in cooling technologies contribute to the improvements in turbine efficiency and are used for gas turbines and for power generation in automotive, aviation, as well as in naval applications, and many more. Studies introducing turbulators on walls of internal cooling channels, which can be applied to hot gas components and in recuperative heat exchangers, have been reviewed for their ability to promote heat transfer in the channel while observing pressure loss caused by adding the features. Several types of turbulators have been studied; ribs, …


Gender Composition Of Online Technical Communication Collaborations, Erika A. Wardell Jan 2011

Gender Composition Of Online Technical Communication Collaborations, Erika A. Wardell

Electronic Theses and Dissertations

Online collaborations are more prevalent in society due to electronic communication allowing students and professionals to communicate with each other, without needing to spend time or money traveling. The lack of visual cues in electronic communication means writing styles primarily set the tone of a message. A group member‟s gender can affect his or her writing style and what he or she assumes about the message. The differing writing styles and potential gender bias can cause misunderstandings, which delay projects and sometimes lead to ostracizing a group member. The gender composition of an online collaboration, therefore, can have a positive …


Explaining The Support Of The British National Party (Bnp) In The 1999, 2004, And 2009 European Parliament Elections, Jonathan Richard Willis Jan 2011

Explaining The Support Of The British National Party (Bnp) In The 1999, 2004, And 2009 European Parliament Elections, Jonathan Richard Willis

Electronic Theses and Dissertations

In the past decade, there has been a surge of interest in extreme right Western European parties. Well-established parties such as the National Front (FN) in France, Vlaams Belang (formerly Vlaams Blok) in Belgium, and Lega Nord in Italy have been scrutinized. However, extreme right parties that have just recently begun to experience electoral successes such as the British National Party (BNP) have received less evaluation and discussion in the literature. Therefore, this study examines the BNP‟s electoral fortunes in the European elections of 1999, 2004, and 2009. I explore the support for the BNP using the traditional variables of …


A Laudable Ambition Fired Her Soul Conduct Fiction Helps Define Republican Womanhood, Female Communities, And Women's Education In The Works Of Judith Sargent Murray, Hannah Webster Foster, And Susanna Haswell Rowson, Jessica Crystal Workman Jan 2011

A Laudable Ambition Fired Her Soul Conduct Fiction Helps Define Republican Womanhood, Female Communities, And Women's Education In The Works Of Judith Sargent Murray, Hannah Webster Foster, And Susanna Haswell Rowson, Jessica Crystal Workman

Electronic Theses and Dissertations

This study examines the major works of Judith Sargent Murray, Hannah Webster Foster, and Susanna Haswell Rowson, three major writers of the 1790s whose writing responds to the ideologies of the early American Republic. I suggest that Murray, Foster, and Rowson write conduct fiction which responds to the changing attitudes toward women and education after the American Revolution. Using fiction, these authors comment on the republican woman, the need for women’s education, and the necessity for women to gather in communities for support. Despite the prevailing notion that reading too many novels would corrupt young women, Judith Sargent Murray’s novella, …


Development Of Molecular And Cellular Imaging Tools To Evaluate Gene And Cell Based Therapeutic Strategies In Vivo, Jixiang Xia Jan 2011

Development Of Molecular And Cellular Imaging Tools To Evaluate Gene And Cell Based Therapeutic Strategies In Vivo, Jixiang Xia

Electronic Theses and Dissertations

Molecular imaging modalities are important tools to evaluate the efficacy of gene delivery systems and cell-based therapies. Development and application of these modalities will advance our understanding of the mechanism of transgene expression and cell fate and functions. Physical gene transfer methods hold many advantages over viral vectors among gene therapeutic strategies. Here, we evaluated the efficacy of biolistic (“gene gun”) gene targeting to tissues with non-invasive bioluminescence imaging (BLI) methods. Plasmids carrying the firefly luciferase reporter gene were transfected into mouse skin and liver using biolistics, and BLI was measured at various time points after transfer. With optimized DNA …


The Response Of American Police Agencies To Digital Evidence, Hamdi Yesilyurt Jan 2011

The Response Of American Police Agencies To Digital Evidence, Hamdi Yesilyurt

Electronic Theses and Dissertations

Little is known about the variation in digital forensics practice in the United States as adopted by large local police agencies. This study investigated how environmental constraints, contextual factors, organizational complexity, and organizational control relate to the adoption of digital forensics practice. This study integrated 3 theoretical perspectives in organizational studies to guide the analysis of the relations: institutional theory, contingency theory, and adoption-of-innovation theory. Institutional theory was used to analyze the impact of environmental constraints on the adoption of innovation, and contingency theory was used to examine the impacts of organizational control on the adoption of innovation. Adoption of …


Cultural Differences In Forgiveness Fatalism, Trust Violations, And Trust Repair Efforts In Interpersonal Collaboration, Jessica L. Wildman Jan 2011

Cultural Differences In Forgiveness Fatalism, Trust Violations, And Trust Repair Efforts In Interpersonal Collaboration, Jessica L. Wildman

Electronic Theses and Dissertations

Mistakes and betrayals can cause developing interpersonal trust between parties to be broken, and damaged trust can have serious negative impacts on relationships, such as withdrawal from group interaction or the enactment of revenge. Research has suggested that the use of apologies helps to repair damaged trust. However, this research is almost exclusively based in westernized populations and has not begun to explore any cross-cultural differences. Therefore, the primary goal of this comparative cross-national laboratory study was to examine if, and how, the effectiveness of trust repair efforts differs across cultures. The effectiveness of three manipulated trust repair strategies (no …


Integration Of High-Q Filters With Highly Efficient Antennas, Yazid Yusuf Jan 2011

Integration Of High-Q Filters With Highly Efficient Antennas, Yazid Yusuf

Electronic Theses and Dissertations

The integration of high-quality (Q)-factor 3-D filters with highly efficient antennas is addressed in this dissertation. Integration of filters and antennas into inseparable units eliminates the transitions between the otherwise separate structures resulting in more compact and efficient systems. The compact, highly efficient integrated 3-D filter/antenna systems, enabled by the techniques developed herein, allow for the realization of integrated RF front ends with significantly- reduced form factors. Integration of cavity filters with slot antennas in a single planar substrate is first demonstrated. Due to the high Q factor of cavity resonators, the efficiency of the integrated filter/antenna system is found …


Hückel Energy Of A Graph: Its Evolution From Quantum Chemistry To Mathematics, Steven Zimmerman Jan 2011

Hückel Energy Of A Graph: Its Evolution From Quantum Chemistry To Mathematics, Steven Zimmerman

Electronic Theses and Dissertations

The energy of a graph began with German physicist, Erich H¨uckel’s 1931 paper, Quantenttheoretische Beitr¨age zum Benzolproblem. His work developed a method for computing the binding energy of the π-electrons for a certain class of organic molecules. The vertices of the graph represented the carbon atoms while the single edge between each pair of distinct vertices represented the hydrogen bonds between the carbon atoms. In turn, the chemical graphs were represented by an n × n matrix used in solving Schr¨odinger’s eigenvalue/eigenvector equation. The sum of the absolute values of these graph eigenvalues represented the total π-electron energy. The criteria …


Techniques For Boosting The Performance In Content-Based Image Retrieval Systems, Ning Yu Jan 2011

Techniques For Boosting The Performance In Content-Based Image Retrieval Systems, Ning Yu

Electronic Theses and Dissertations

Content-Based Image Retrieval has been an active research area for decades. In a CBIR system, one or more images are used as query to search for similar images. The similarity is measured on the low level features, such as color, shape, edge, texture. First, each image is processed and visual features are extract. Therefore each image becomes a point in the feature space. Then, if two images are close to each other in the feature space, they are considered similar. That is, the k nearest neighbors are considered the most similar images to the query image. In this K-Nearest Neighbor …


Adherence Practices Of Caucasian Women With Hypertension Residing In Rural Florida An Exploratory Study, Jeanne M. Hopple Jan 2011

Adherence Practices Of Caucasian Women With Hypertension Residing In Rural Florida An Exploratory Study, Jeanne M. Hopple

Electronic Theses and Dissertations

Hypertension, or high blood pressure, is a major risk factor for heart disease and stroke. Elevated blood pressure is often a silent process affecting multiple organ systems. Risk for heart disease is associated with poorly treated or unrecognized hypertension that is more common among women than men. Non-adherence to prescribed treatment regimens has been identified as a major reason for inadequate hypertension management. This exploratory descriptive qualitative study using narrative inquiry investigated adherence practices among Caucasian women with diagnoses of hypertension from a rural area of Florida. The purpose of this study was to gain an understanding from women who …


Differential Diagnoses Of Temporal Bone Defects And Zygomatic Bone Lesions Found In Fetal And Infant Individuals From The Kellis 2 Cemetery, Dakhleh Oasis, Egypt, Brittany A. Jardine Jan 2011

Differential Diagnoses Of Temporal Bone Defects And Zygomatic Bone Lesions Found In Fetal And Infant Individuals From The Kellis 2 Cemetery, Dakhleh Oasis, Egypt, Brittany A. Jardine

Electronic Theses and Dissertations

The Kellis 2 cemetery site within the Dakhleh Oasis, Egypt provides a unique study opportunity due to the large number of infant, perinatal, and fetal individuals that have been recovered. Several of the infant and fetal remains have undiagnosed circular defects on the temporal bone, and others have undiagnosed lesions on the zygomatic bone. Of the 268 individuals under one year of age that have been analyzed from the Kellis 2 cemetery, twentysix individuals have the temporal bone defect and six have the zygomatic bone lesions. A survey of clinical and paleopathological research provided possible pathological conditions that could cause …


Design Of The Layout Of A Manufacturing Facility With A Closed Loop Conveyor With Shortcuts Using Queueing Theory And Genetic Algorithms, Vernet Michael Lasrado Jan 2011

Design Of The Layout Of A Manufacturing Facility With A Closed Loop Conveyor With Shortcuts Using Queueing Theory And Genetic Algorithms, Vernet Michael Lasrado

Electronic Theses and Dissertations

With the ongoing technology battles and price wars in today's competitive economy, every company is looking for an advantage over its peers. A particular choice of facility layout can have a significant impact on the ability of a company to maintain lower operational expenses under uncertain economic conditions. It is known that systems with less congestion have lower operational costs. Traditionally, manufacturing facility layout problem methods aim at minimizing the total distance traveled, the material handling cost, or the time in the system (based on distance traveled at a specific speed). The proposed methodology solves the looped layout design problem …


An Investigation Of The Representation Of Middle School English Language Learners (Ells) In Special Education Programs In A Large Urban School District, Leah J. Lerma Jan 2011

An Investigation Of The Representation Of Middle School English Language Learners (Ells) In Special Education Programs In A Large Urban School District, Leah J. Lerma

Electronic Theses and Dissertations

The disproportionate representation of ethnically and racially diverse students in special education has been an enduring problem in education for the past four decades. However, most of the research on disproportionality has focused on the ethnic/racial variable; the body of research focusing on the linguistic variable is still slim in comparison. As linguistic diversity in the United States continues to rise, teachers will continue to be challenged to meet the needs of the English Language Learners in their classrooms. However, many teachers feel unprepared to deal with this diversity and have difficulty discriminating whether a student’s poor performance is due …


Imaging Long-Range Orientational Order In Monolayers Of Amphiphilic Molecules With Scanning Probe Force Microscope And Liquid Crystal Optical Amplification, Wenlang Liang Jan 2011

Imaging Long-Range Orientational Order In Monolayers Of Amphiphilic Molecules With Scanning Probe Force Microscope And Liquid Crystal Optical Amplification, Wenlang Liang

Electronic Theses and Dissertations

Monolayers of amphiphilic molecules at interface provide a unique system for understanding the thermodynamic and rheological properties of quasi two-dimensional systems. They are also an excellent model accessible for studying cell membranes. The feature of longrange organization of molecular tilt azimuth in monolayers at the air/water interface is one of the most interesting findings over the past two decades, which leads to the formation rich and defined textures. By observing the changes in these textures, the transitions between tilted monolayer phases can be detected. We study the boojum and stripe textures formed in the liquid-condensed phase of pentadecanoic acid (PDA) …


An Uncurling Hand Isolation In Public Places, Kimberly Kelley Lundblom Jan 2011

An Uncurling Hand Isolation In Public Places, Kimberly Kelley Lundblom

Electronic Theses and Dissertations

The creative thesis ―An Uncurling Hand: Isolation in Public Places‖ is a collection of poetry concerned with ideological dichotomies: conventional domestication against the exotic, class divides and its implications for identity, and most importantly the feeling of isolation even when surrounded by others.


Environmental Study Of Solid Waste Collection, Mousa Awad Maimoun Jan 2011

Environmental Study Of Solid Waste Collection, Mousa Awad Maimoun

Electronic Theses and Dissertations

The growing municipal solid waste generation rates have necessitated more efficient, optimized waste collection facilities. The majority of the US collection fleet is composed of diesel-fueled vehicles which contribute significant atmospheric emissions including greenhouse gases. In order to reduce emissions to the atmosphere, more collection agencies are investigating alternative fuel technologies such as natural gas, biofuels (bio-gas and bio-diesel), and hybrid electric technology. This research is an in-depth environmental analysis of potential alternative fuel technologies for waste collection vehicles. This study will evaluate the use of alternative fuels by waste collection vehicles. Lifecycle emissions, cost, fuel and energy consumption were …


Novel Copper Loaded Core-Shell Silica Nanoparticles With Improved Copper Bioavailability Synthesis, Characterization And Study Of Antibacterial Properties, Pavithra Maniprasad Jan 2011

Novel Copper Loaded Core-Shell Silica Nanoparticles With Improved Copper Bioavailability Synthesis, Characterization And Study Of Antibacterial Properties, Pavithra Maniprasad

Electronic Theses and Dissertations

A novel core-shell silica based antimicrobial nanoparticle was synthesized. The Stöber silica shell has been engineered to accommodate copper. Synthesis of the core-shell Cu-silica nanoparticle (C-S CuSiNP) involves preparation of base-hydrolyzed Stöber silica “seed” particles first, followed by the acid-catalyzed seeded growth of the Cu-silica shell layer around the core. Scanning electron microscopy and transmission electron microscopy showed monodispersed, spherical shaped nanoparticles with smooth surface morphology. Characterization of particle size distribution in solution by the Dynamic Light Scattering (DLS) technique was fairly consistent with the electron microscopy results. Loading of Cu to nanoparticles was confirmed by the SEM-Energy Dispersive X-Ray …


An Ecological Analysis Of Social And Economic Influences On Black And White Infant Mortality Risk In Orange County, Fl, Littleton, Vanessa Lopez Jan 2011

An Ecological Analysis Of Social And Economic Influences On Black And White Infant Mortality Risk In Orange County, Fl, Littleton, Vanessa Lopez

Electronic Theses and Dissertations

Black health disparities are a salient public health issue with blacks in every socioeconomic level at a greater health disadvantage than their white counterparts. In particular, disparity in infant mortality rates between blacks and whites have widened in recent decades to differentials never before experienced in the United States. Social ecologists investigating the myriad of individual and environmental risk factors have failed to fully account for the persistent differential. This study examines the relationships between individual and environmental influences on the health risk experienced by blacks, whites, as well as the differential between the two populations. This multi-level analysis was …


Xml Beyond The Tags, Christopher Adam Meloy Jan 2011

Xml Beyond The Tags, Christopher Adam Meloy

Electronic Theses and Dissertations

XML is quickly being utilized in the field of technical communication to transfer information from database to person and company to company. Often communicators will structure information without a second thought of how or why certain tags are used to mark up the information. Because the company or a manual says to use those tags, the communicator does so. However, if professionals want to unlock the true potential of XML for better sharing of information across platforms, they need to understand the effects the technology using XML as well as political and cultural factors have on the tags being used. …


Analysis Of Behaviors In Crowd Videos, Ramin Mehran Jan 2011

Analysis Of Behaviors In Crowd Videos, Ramin Mehran

Electronic Theses and Dissertations

In this dissertation, we address the problem of discovery and representation of group activity of humans and objects in a variety of scenarios, commonly encountered in vision applications. The overarching goal is to devise a discriminative representation of human motion in social settings, which captures a wide variety of human activities observable in video sequences. Such motion emerges from the collective behavior of individuals and their interactions and is a significant source of information typically employed for applications such as event detection, behavior recognition, and activity recognition. We present new representations of human group motion for static cameras, and propose …


The Effects Of Using An Interactive Student Notebook On The Understanding Of The Concepts And Algorithms Of Addition And Subtraction Of Fractions And Mixed Numbers For Fifth Grade Mathematics Students, Brian J. Twar Jan 2011

The Effects Of Using An Interactive Student Notebook On The Understanding Of The Concepts And Algorithms Of Addition And Subtraction Of Fractions And Mixed Numbers For Fifth Grade Mathematics Students, Brian J. Twar

Electronic Theses and Dissertations

The purpose of this action research study was to observe the effectiveness of the utilization of an instructional tool in my three mathematics classes. Using a tool, called an Interactive Student Notebook, or ISN, the goal was to equip my students with a tool that would allow them to take and keep daily notes as well as conduct guided and independent practice in an organized fashion. I believed that my students would therefore utilize their notes and class work as a reference and study tool to assist them with their homework as well as studying for assessments. Weak to moderate …