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2010

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Magnetic Nanosensors For Multiplexed Bacterial Pathogenesis Identification, Charalambos Kaittanis Jan 2010

Magnetic Nanosensors For Multiplexed Bacterial Pathogenesis Identification, Charalambos Kaittanis

Electronic Theses and Dissertations

Developing diagnostic modalities that utilize nanomaterials and miniaturized detectors can have an impact in point-of-care diagnostics. Diagnostic systems that (i) are sensitive, robust, and portable, (ii) allow detection in clinical samples, (iii) require minimal sample preparation yielding results quickly, and (iv) can simultaneously quantify multiple targets, would have a great potential in biomedical research and public healthcare. Bacterial infections still cause pathogenesis throughout the world (Chapter I). The emergence of multi-drug resistant strains, the potential appearance of bacterial pandemics, the increased occurrence of bacterial nosocomial infections, the wide-scale food poisoning incidents and the use of bacteria in biowarfare highlight the …

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An Assessment Of Sea Turtle Nesting Behavior In Relation To Hurricane- And Restoration-Induced Beach Morphodynamics, Tonya Michele Long Jan 2010

An Assessment Of Sea Turtle Nesting Behavior In Relation To Hurricane- And Restoration-Induced Beach Morphodynamics, Tonya Michele Long

Electronic Theses and Dissertations

Coastal habitats are highly dynamic and vulnerable to landscape-level disturbances such as storms and restoration projects. Along the east coast of Florida these areas are particularly valuable as they provide significant nesting habitat for two sea turtle species, the threatened loggerhead (Caretta caretta) and the endangered green turtle (Chelonia mydas). This coast was heavily impacted by three major hurricanes in 2004 and in some areas by large restoration projects in 2005. Recent remote sensing methods allow for broad evaluation of the shoreline and thus the ability to assess sea turtle nesting habitat at a landscape scale. I collected nesting data …

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The Impact Of Teacher Incentive Pay Programs On The Learning Gains Of Low-Performing Middle School Students, Donna W. Miller Jan 2010

The Impact Of Teacher Incentive Pay Programs On The Learning Gains Of Low-Performing Middle School Students, Donna W. Miller

Electronic Theses and Dissertations

President Barack Obama committed hundreds of millions of dollars to the Teacher Incentive Fund (TIF), yet a few fundamental questions remain unanswered—was the federal program effective? Did student test scores improve? Since the late 19th century, teachers have been paid for their classroom services regardless of how well—or poorly— their students performed. Nearly a century later, advocates of education reform continue to champion teacher compensation policies that link salary to student achievement. Researchers have identified two motivation theories that must be present in order to have a successful incentive pay program: goal theory and expectancy theory. The presence or absence …

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Sexual Dimorphism Of The Posterior Pelvis Of The Robert J. Terry Anatomical Collection And The William M. Bass Donated Skeletal Collection, Lauren M. Novak Jan 2010

Sexual Dimorphism Of The Posterior Pelvis Of The Robert J. Terry Anatomical Collection And The William M. Bass Donated Skeletal Collection, Lauren M. Novak

Electronic Theses and Dissertations

Studies of sexual dimorphism of the sacrum have generally been conducted as part of broader population research or on living persons and cadavers, making the anthropological literature sparse. The greater sciatic notch and the preauricular sulcus of the ilium have both been found to show sexual dimorphism, although studies of these traits often have ambiguous definitions of characteristics and lack the standardization of measurements. This research was designed to reexamine and test the accuracy of standard scoring systems and measurements of the posterior pelvis used to determine sex and to establish new formulae combining traits and measurements to accurately determine …

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Geographic Variation In Post-Mating Immune Gene Expression In Drosophila Melanogaster, Cheryl Ann Pinzone Jan 2010

Geographic Variation In Post-Mating Immune Gene Expression In Drosophila Melanogaster, Cheryl Ann Pinzone

Electronic Theses and Dissertations

An organism's immune response may vary due to pathogen pressure in its environment, as well as due to interactions with other organisms. These factors, along with geographic rules (i.e. Gloger's rule) may influence the geographic distribution of the immune response within populations of a species. Here we use real-time quantitative PCR to measure the immune gene expression in six populations collected along the eastern U.S. of Drosophila melanogaster after mating. Antimicrobial genes did not show significant differences in expression due to location, whereas we did observe differences in anti-fungal and pro-phenoloxidase (anti-macromolecule) related genes. These differences in anti-macromolecule resistance are …

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Assessing The Psychometric Properties Of The Counseling Competencies Scale A Measure Of Counseling Skills, Dispositions, And Behaviors, Jacqueline Melissa Swank Jan 2010

Assessing The Psychometric Properties Of The Counseling Competencies Scale A Measure Of Counseling Skills, Dispositions, And Behaviors, Jacqueline Melissa Swank

Electronic Theses and Dissertations

Ethical and competent professional counselors are needed to provide quality counseling services to the public. Counselor educators and supervisors have the responsibility of training competent counselors. Furthermore, counselors and counselors-in-training have the responsibility of continually assessing their own development and implementing measures to increase their competency. Assessment instruments have sought to measure counseling competencies through evaluating counseling skills. However, a paucity of research exists that examines counseling competencies in a comprehensive manner using a psychometrically sound approach. Therefore, a need exists for a psychometrically sound assessment instrument that measures the construct of counseling competencies in a holistic manner. Thus, the …

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Effects Of A Treatment Using Computer Generation Of Isometric And Orthographic Projections On Middle School Students' Spatial Ability, Adam Michael Traas Jan 2010

Effects Of A Treatment Using Computer Generation Of Isometric And Orthographic Projections On Middle School Students' Spatial Ability, Adam Michael Traas

Electronic Theses and Dissertations

The primary focus of this study examines the effectiveness of the CRIOSAT (Computerized Rotational Isometric and Orthographic Spatial) spatial ability treatment on a random sample of middle school students’ (n=137) spatial ability as measured by the Purdue Spatial Visualization Test: Rotations Test (PSVT-ROT) (Guay, 1977). The secondary focus of this study investigates the relationships between mathematical achievement, problem solving preferences, and spatial ability. The secondary focus was tested on a subsample (n=41), with the problem solving preferences measured via the Mathematical Processing Instrument (MPI) (Suwarsono, 1982). Findings indicated no significant gains in spatial ability scores after students’ use of the …

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Electroconvulsive Shock Ameliorates Disease Processes And Extends Survival In Huntington Mutant Mice, Akanksha Baharani Jan 2010

Electroconvulsive Shock Ameliorates Disease Processes And Extends Survival In Huntington Mutant Mice, Akanksha Baharani

Electronic Theses and Dissertations

Huntington's disease (HD) is a devastating autosomal dominantly inherited neurological disorder caused by an abnormal expansion of CAG trinucleotide repeats in the gene coding for the Nterminal region of the huntingtin (Htt) protein, which leads to the formation of a polyglutamine stretch. The greater the CAG repeats, the earlier the onset of the disease. The polyglutamine stretch destabilizes the Htt protein leading to misfolding, abnormal processing, aggregation, and inclusion formation. Mutant Htt protein is believed to damage and kill neurons in the striatum by a mechanism involving increased oxidative and metabolic stress, and impaired adaptive cellular stress responses. A large …

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Job Satisfaction And Values Of Counselors In Private Practice And Agency Settings, Laura Cunningham Jan 2010

Job Satisfaction And Values Of Counselors In Private Practice And Agency Settings, Laura Cunningham

Electronic Theses and Dissertations

Counselors can work at a variety of locations (Vacc & Loesch, 2000). Yet very little is known about each setting (King, 2007) and what type of counselors would have an optimum fit. Burnout is a pervasive issue in counseling (Lawson, 2007) and providing good-fit information could lessen turnover and burnout from the counseling field. The primary purpose of this study included investigating the differences between job satisfaction and value priorities of counselors in private practice and agency settings. The overarching theoretical framework included Frank Parsons‘ counselors, with seventy-two agency counselors and sixty-three private practitioners. Counselors completed two assessments and a …

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Experimental And Theoretical Approaches To Characterization Of Electronic Nonlinearities In Direct-Gap Semiconductors, Claudiu Cirloganu Jan 2010

Experimental And Theoretical Approaches To Characterization Of Electronic Nonlinearities In Direct-Gap Semiconductors, Claudiu Cirloganu

Electronic Theses and Dissertations

The general goal of this dissertation is to provide a comprehensive description of the limitations of established theories on bound electronic nonlinearities in direct-gap semiconductors by performing various experiments on wide and narrow bandgap semiconductors along with developing theoretical models. Nondegenerate two-photon absorption (2PA) is studied in several semiconductors showing orders of magnitude enhancement over the degenerate counterpart. In addition, three-photon absorption (3PA) is studied in ZnSe and other semiconductors and a new theory using a Kane 4-band model is developed which fits new data well. Finally, the narrow gap semiconductor InSb is studied with regard to multiphoton absorption, free-carrier …

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Search For Gas Giants Around Late-M Dwarfs, Rohit Deshpande Jan 2010

Search For Gas Giants Around Late-M Dwarfs, Rohit Deshpande

Electronic Theses and Dissertations

We carried out a near-infrared radial velocity search for Jupiter-mass planets around 36 late M dwarfs. This survey was the first of its kind undertaken to monitor radial velocity variability of these faint dwarfs. For this unique survey we employed the 10-m Keck II on Mauna Kea in Hawaii. With a resolution of 20,000 on the near-infrared spectrograph, NIRSPEC, we monitored these stars over four epochs in 2007. In addition to the measurement of relative radial velocity we established physical properties of these stars. The physical properties of M dwarfs we determined included the identification of neutral atomic lines, the …

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Silicon-Sensitized Erbium Excitation In Silicon-Rich Silica For Integrated Photonics, Oleksandr Savchyn Jan 2010

Silicon-Sensitized Erbium Excitation In Silicon-Rich Silica For Integrated Photonics, Oleksandr Savchyn

Electronic Theses and Dissertations

It is widely accepted that the continued increase of processor performance requires at least partial replacement of electronic interconnects with their photonic counterparts. The implementation of optical interconnects requires the realization of a silicon-based light source, which is challenging task due to the low emission efficiency of silicon. One of the main approaches to address this challenge is the use of doping of silicon based matrices with optical centers, including erbium ions. Erbium ions incorporated in various hosts assume the trivalent state (Er3+) and demonstrate a transition at 1.54 μm, coinciding with optical transmission windows in both silicon and silica. …

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Acetazolamide-Induced Decrease Of Apical Fluid Flow In Choroid Plexus Is Independent Of The Concomitant Changes In Aquaporin-1 Expression, Pouya Alexander Ameli Jan 2010

Acetazolamide-Induced Decrease Of Apical Fluid Flow In Choroid Plexus Is Independent Of The Concomitant Changes In Aquaporin-1 Expression, Pouya Alexander Ameli

Electronic Theses and Dissertations

Acetazolamide (AZA), the only drug approved for treatment of hydrocephalus, is effective in only 25-30% of patients while its effect on fluid flow in the choroid plexus (CP) is unknown. The drug reversibly inhibits Aquaporin 4 (AQP4), the most highly expressed „water pore‟ in the brain, and it is postulated that it reduces cerebrospinal fluid (CSF) production by modulating AQP1 (mostly found in the apical membrane of the CP). In this study, we sought to elucidate the effect of AZA on AQP1 and fluid flow in CP. Primary CP culture from p10 Sprague-Dawley rats and TRCSF-B cell line were grown …

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Supporting A Standards-Based Teaching And Learning Environment A Case Study Of An Expert Middle School Mathematics Teacher, Didem Akyuz Jan 2010

Supporting A Standards-Based Teaching And Learning Environment A Case Study Of An Expert Middle School Mathematics Teacher, Didem Akyuz

Electronic Theses and Dissertations

Although it has been more than 20 years since the publication of Curriculum and Evaluation Standards for School Mathematics (NCTM, 1989) and 10 years since the second version of standards, Principles and Standards for School Mathematics (NCTM, 2000), the research underlines the lack of essential practices for standards-based teaching (Franke, Kazemi, & Battey, 2007). The literature also emphasizes the importance of planning in standards-based teaching, although few studies focus on the direct planning of the teacher (Kilpatrick, Swafford, & Findell, 2001). The aim of the current study was to conduct a case study to extract the planning and classroom practices …

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Design, Synthesis And Characterization Of New Two-Photon Absorbing (2pa) Fluorescent Dyes And Bioconjugates, And Their Applications In Bioimaging, Carolina D. Andrade Jan 2010

Design, Synthesis And Characterization Of New Two-Photon Absorbing (2pa) Fluorescent Dyes And Bioconjugates, And Their Applications In Bioimaging, Carolina D. Andrade

Electronic Theses and Dissertations

The development of new multiphoton absorbing materials has attracted the attention of researchers for the last two decades. The advantages that multiphoton absorbing materials offer, versus their one-photon absorbing counterparts, rely on the nature of the nonlinearity of the absorption process, where two photons are absorbed simultaneously offering increased 3D resolution, deeper penetration, and less photobleaching and photodamage as a result of a more confined excitation. The applications of efficient two-photon absorbing materials have been extensively expanding into the fields of photodynamic therapy, microscopy, and optical data storage. One of the fields where an increased interest in multiphoton absorbing materials …

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Clinical Practice Guidelines For Emerging Ultrasound Applications Drafting For Validity And Usability, Kathi Keaton Borok Jan 2010

Clinical Practice Guidelines For Emerging Ultrasound Applications Drafting For Validity And Usability, Kathi Keaton Borok

Electronic Theses and Dissertations

Clinical practice guidelines (CPGs) are viewed by many people with interests in health care as valuable tools for reducing practice variations that undermine patient outcomes and increase medical costs. However, guidelines themselves vary in quality. Assessment tools generally base quality measures on strength of guidelines' evidence base, but particularly for newly emerging applications of ultrasound, standards for measuring guideline quality are controversial. The validity of a guideline is considered likely when strong research-based evidence supports its recommendations, but for newer medical procedures such as emerging ultrasound applications, available evidence is sparse. Existing assessment tools must be modified if they are …

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The Academic Word List Reorganized For Spanish-Speaking English Language Learners, Robert W. Bushong Ii Jan 2010

The Academic Word List Reorganized For Spanish-Speaking English Language Learners, Robert W. Bushong Ii

Electronic Theses and Dissertations

Published in TESOL Quarterly a decade ago, the Academic Word List (AWL) (Coxhead, 2000) has become increasingly influential in the field of TESOL. With more than 82% of the AWL comprised of words of Latin and Greek, much of this important list logically consists of English-Spanish cognates because Spanish originated from Latin. In order to serve Spanishspeaking English language learners (SSELLs) better, their teachers need to know which AWL words are cognates. Using published sources and linguistic analysis of the 570 items in the AWL, the research in this thesis has resulted in a newly reorganized AWL divided into four …

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Estimating Diet And Food Selectivity Of The Lower Keys Marsh Rabbit Using Stable Isotope Analysis, Matthew James Gordon Jan 2010

Estimating Diet And Food Selectivity Of The Lower Keys Marsh Rabbit Using Stable Isotope Analysis, Matthew James Gordon

Electronic Theses and Dissertations

Understanding the effect of food abundance on feeding behavior can benefit conservation efforts in many ways, such as to determine whether impacted environments need food supplementation, whether different locations of threatened species contain different food abundances, or whether reintroduction sites are missing key components of a species’ diet. I studied the relationship between feeding behavior and food abundance in the Lower Keys marsh rabbit (Sylvilagus palustris hefneri), an endangered subspecies endemic to the lower Florida Keys. Specifically, my study set out to measure the relative abundance of the primary plants within the natural habitat of the Lower Keys marsh rabbit …

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Evaluation Of A Simulation-Enhanced Obstetric Clinical Experience On Learning Outcomes For Knowledge, Self-Efficacy, And Transfer, Mary Elizabeth Guimond Jan 2010

Evaluation Of A Simulation-Enhanced Obstetric Clinical Experience On Learning Outcomes For Knowledge, Self-Efficacy, And Transfer, Mary Elizabeth Guimond

Electronic Theses and Dissertations

Simulation using computerized patient mannequins may be a useful mechanism to teach safe and effective nursing care, thus improving the quality of education for nurses. As nursing program enrollments grow, clinical placement is becoming more difficult and may not offer consistent learning opportunities that reinforce safe and effective nursing practice. This study applied Ford, Smith, Weissbein, Gully, and Salas’ (1998) model of learning transfer as the theoretical framework to design a simulated obstetric clinical learning experience to augment the current clinical practice model, an approach that may lead to an improved educational experience. The purpose of this study was to …

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Social Comparison, Self-Objectification, And Objectification Of Others Investigating The Vicious Cycle That Leads To Body Dissatisfaction And Disordered Eating, Danielle M. Lindner Jan 2010

Social Comparison, Self-Objectification, And Objectification Of Others Investigating The Vicious Cycle That Leads To Body Dissatisfaction And Disordered Eating, Danielle M. Lindner

Electronic Theses and Dissertations

The purpose of this study was to test a new theoretical model that integrates self-objectification, objectification of others, and social comparison as contributors to the development and maintenance of body image disturbance and disordered eating behavior. Within the new theoretical model, self-objectification, objectification of others, and social comparison are conceptualized as a self-perpetuating cycle, rather than as processes that occur independently of one another. Four hundred fifty-nine female college students between the ages of 18 and 32 completed measures of self-objectification, objectification of others, social comparison, body shame, body dissatisfaction, and eating disorder symptomatology. Structural equation modeling with nested model …

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Increasing Self Reported Argumentativeness In College Level Public Speaking Students, Kim E. Long Jan 2010

Increasing Self Reported Argumentativeness In College Level Public Speaking Students, Kim E. Long

Electronic Theses and Dissertations

Argumentativeness, or the predisposition “to advocate positions on controversial issues and to attack verbally the positions which other people take on these issues” (Infante & Rancer, 1982, p.72), has been associated with a number of positive outcomes. Research among student populations indicates that compared to people who are low in argumentativeness, people high in argumentativeness display higher ability to learn, higher self esteem, greater ability to creatively manage conflict, and higher ability to see both sides of a situation (Barden & Petty, 2008; McPherson Frantz & Seburn, 2003; Rancer, Whitecap, Kosberg, & Avtgis, 1997). Promoting argumentativeness among college students should …

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Dialectical Tensions Between Glocalization And Grobalization For Wal-Mart In The United States, Laura Lord Jan 2010

Dialectical Tensions Between Glocalization And Grobalization For Wal-Mart In The United States, Laura Lord

Electronic Theses and Dissertations

This qualitative analysis examines Wal-Mart managers‟ perspectives of the strategies that the U.S. corporation has implemented in order to increase its sales and profits at more than 4,000 stores in local U.S. communities. Two theoretical paradigms are specifically used: glocalization and grobalization. The former refers to cultural adaptation; the latter means standardization. The ultimate goal of the researcher is to identify the dialectical tensions between those two current forms of globalization. In-depth, face-to-face, qualitative interviewing of ten Wal-Mart managers in Central Florida allowed the researcher to actually comprehend managers‟ perspectives, gather fresh data, and construct a final product to enlighten …

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The Communication Implications And Related Experiences Associated With Transracially Adopting A Child From Vietnam, Lan Marie Malin Jan 2010

The Communication Implications And Related Experiences Associated With Transracially Adopting A Child From Vietnam, Lan Marie Malin

Electronic Theses and Dissertations

This study investigated the communication experiences of adoptive parents of children transracially adopted from Vietnam. Though adoption has been extensively studied in communication research, transracial adoptions involving children from Vietnam has not. Thus, this study examined adoptive parent communication experiences using dialectic theory and relational dialectics. By examining adoptive parents’ communication with their adopted child and others, we can determine tensions that occur in different communication experiences. Data were collected through eight qualitative in-depth interviews conducted with adoptive parents of children from Vietnam. Openness with both strangers and the adopted child(ren) and preservation of key aspects of the adopted children’s …

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Survey Of Meteorite Physical Properties Density, Porosity And Magnetic Susceptibility, Robert J. Macke Jan 2010

Survey Of Meteorite Physical Properties Density, Porosity And Magnetic Susceptibility, Robert J. Macke

Electronic Theses and Dissertations

The measurement of meteorite physical properties (i.e. density, porosity, magnetic susceptibility) supplements detailed chemical and isotopic analyses for small samples (thin sections or ~300 mg portions) by providing whole-rock data for samples massing in the tens of grams. With the advent of fast, non-destructive and non-contaminating measurement techniques including helium ideal-gas pycnometry for grain density, the Archimedean ―glass bead‖ method for bulk density and (with grain density) porosity, and the use of low-field magnetometry for magnetic susceptibility, all of which rely on compact and portable equipment, this has enabled a comprehensive survey of these physical properties for a wide variety …

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A Wearable Head-Mounted Projection Display, Ricardo F. Martins Jan 2010

A Wearable Head-Mounted Projection Display, Ricardo F. Martins

Electronic Theses and Dissertations

Conventional head-mounted projection displays (HMPDs) contain of a pair of miniature projection lenses, beamsplitters, and miniature displays mounted on the helmet, as well as a retro-reflective screen placed strategically in the environment. We have extened the HMPD technology integrating the screen into a fully mobile embodiment. Some initial efforts of demonstrating this technology has been captured followed by an investigation of the diffraction effects versus image degradation caused by integrating the retro-reflective screen within the HMPD. The key contribution of this research is the conception and development of a mobileHMPD (M-HMPD). We have included an extensive analysis of macro- and …

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Transplantation Of Ips Cells Reduces Apoptosis And Fibrosis And Improves Cardiac Function In Streptozotocin-Induced Diabetic Rats, Sarah Elizabeth Neel Jan 2010

Transplantation Of Ips Cells Reduces Apoptosis And Fibrosis And Improves Cardiac Function In Streptozotocin-Induced Diabetic Rats, Sarah Elizabeth Neel

Electronic Theses and Dissertations

Background: Streptozotocin (STZ) induced diabetes leads to various complications including cardiomyopathy. Recent data suggests transplanted bone marrow stem cells improve cardiac function in diabetic cardiomyopathy. However, whether modified ES, iPS cells, or factors released from these cells can inhibit apoptosis and fibrosis remains completely unknown. The present study was designed to determine the effects of transplanted ES cells overexpressing pancreatic transcription factor 1 a (Ptf1a), a propancreatic endodermal transcription factor, iPS cells, or their respective conditioned media (CM) on diabetic cardiomyopathy. Methods: Experimental diabetes was induced in male Sprague Dawley rats (8-10 weeks old) by intraperitoneal STZ injections (65 mg/kg …

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Initial-Value Technique For Singularly Perturbed Two Point Boundary Value Problems Via Cubic Spline, Luis G. Negron Jan 2010

Initial-Value Technique For Singularly Perturbed Two Point Boundary Value Problems Via Cubic Spline, Luis G. Negron

Electronic Theses and Dissertations

A recent method for solving singular perturbation problems is examined. It is designed for the applied mathematician or engineer who needs a convenient, useful tool that requires little preparation and can be readily implemented using little more than an industry-standard software package for spreadsheets. In this paper, we shall examine singularly perturbed two point boundary value problems with the boundary layer at one end point. An initial-value technique is used for its solution by replacing the problem with an asymptotically equivalent first order problem, which is, in turn, solved as an initial value problem by using cubic splines. Numerical examples …

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Detection And Approximation Of Function Of Two Variables In High Dimensions, Minzhe Pan Jan 2010

Detection And Approximation Of Function Of Two Variables In High Dimensions, Minzhe Pan

Electronic Theses and Dissertations

This thesis originates from the deterministic algorithm of DeVore, Petrova, and Wojtaszcsyk for the detection and approximation of functions of one variable in high dimensions. We propose a deterministic algorithm for the detection and approximation of function of two variables in high dimensions.

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A Model Of Flow And Play In Game-Based Learning The Impact Of Game Characteristics, Player Traits, And Player States, Davin Pavlas Jan 2010

A Model Of Flow And Play In Game-Based Learning The Impact Of Game Characteristics, Player Traits, And Player States, Davin Pavlas

Electronic Theses and Dissertations

In this dissertation, the relationship between flow state, serious games, and learning was examined. Serious games, which are games that convey something other than enjoyment (e.g., learning), are increasingly popular platforms for research, training, and advertisement. The elements that make serious games useful to researchers, trainers, and practitioners are closely linked to those that make up the positive psychology construct of flow state. Flow state describes an optimum experience that is encountered when a variety of factors are met, and is characterized by high focus, engagement, motivation, and immersion. While flow state is often discussed in the serious games literature, …

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Tiny Supernovas, Jesse Jay Ross Jan 2010

Tiny Supernovas, Jesse Jay Ross

Electronic Theses and Dissertations

This work seeks to expose the truth in as many different forms as possible. As the title, Tiny Supernovas, suggests, it is influenced by the concept of the explosions of super-massive stars. This explosion is known as a supernova. It is only through a supernova, only through the death and subsequent explosion of one of the largest sequence of stars, that we obtain many of the elements necessary for life here on earth. All heavy metals come from supernovas. Everything we and our planet are made from comes from these explosions. Yet, there is a similarly prolific release of energy …

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