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2013

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Linking Self-Concept, Social Comparison And Academic Achievement In Preadolescents, Leola Lanette Oliver Jan 2013

Linking Self-Concept, Social Comparison And Academic Achievement In Preadolescents, Leola Lanette Oliver

Theses and Dissertations

A wide body of literature exists on the relationship between childhood and adolescent self-concept and achievement (Molloy, Gest, & Rulison, 2011; Trautwein, Ludtke, Marsh, & Nagy, 2009); however, few studies explore the extent to which other socio-psychological processes interact with these 2 variables. Many studies point to parent and teacher feedback as critical factors in the development of self-evaluative processes in children, but there is an absence of literature exploring the extent to which perceptions of peer achievement and social interactions may predict self-concept (Altermatt, Pomerantz, Ruble, Frey, & Greulich, 2002). A growing number of theorists assert that the self-concept/achievement …

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The Relevance Of Historically Black Colleges And Universities, Renee Felicia Dorn Jan 2013

The Relevance Of Historically Black Colleges And Universities, Renee Felicia Dorn

Theses and Dissertations

Starting in the mid-1800s, Historically Black Colleges and Universities (HBCUs) were created for the purpose of educating Black students. Since their inception, HBCUs have transformed from institutions of higher learning with a core curriculum of teaching and ministerial education serving the Black community to progressive colleges and universities that provide bachelor, master, and doctorate degrees in specialized areas of study which serve and benefit communities of all races around the world. As advanced as HBCUs have become, they still have the stigma of being less than adequate producing underachieving students. An increase in publicity of their accomplishments would help to …

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Book Review: Burden Of Proof: A Review Of Math On Trial, Paul H. Edelman Jan 2013

Book Review: Burden Of Proof: A Review Of Math On Trial, Paul H. Edelman

Vanderbilt Law School Faculty Publications

In Math on Trial, Leila Schneps and Coralie Col­ mez write about the abuse of mathematical argu­ ments in criminal trials and how these flawed arguments "have sent innocent people to prison" (p. ix). Indeed, people "saw their lives ripped apart by simple mathematical errors." The purpose of focusing on these errors, despite mathematics' "relatively rare use in trials" (p. x), is "that many of the common mathematical fallacies that pervade the public sphere are perfectly represented by these trials. Thus they serve as ideal illustrations of these errors and of the drastic consequences that faulty reasoning has on real …

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The Implications Of A High Academic Ability Learning Environment On Third Grade Gifted Students' Academic Achievement In Florida Public Schools, Julie Cady Jan 2013

The Implications Of A High Academic Ability Learning Environment On Third Grade Gifted Students' Academic Achievement In Florida Public Schools, Julie Cady

Electronic Theses and Dissertations

The purpose of this two year study was to investigate the implications of a high academic ability learning environment on the achievement scores of third grade gifted students who attended the Florida Brevard County Public School System. Learning environment was defined by the students’ academic ability level, whether high academic ability or heterogeneous academic ability, and for this study was the independent variable. Academic achievement, as measured by the 2011 and the 2012 Florida Comprehensive Assessment Test® 2.0 (FCAT 2.0) Mathematics and Reading Developmental Scale Scores (DSS), was the dependent variable. Other student data such as gender and socioeconomic status …

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Optimization Problem In Single Period Markets, Tian Jiang Jan 2013

Optimization Problem In Single Period Markets, Tian Jiang

Electronic Theses and Dissertations

There had been a number of researches that investigated on the security market without transaction costs. The focus of this research is in the area that when the security market with transaction costs is fair and in such fair market how one chooses a suitable portfolio to optimize the financial goal. The research approach adopted in this thesis includes linear algebra and elementary probability. The thesis provides evidence that we can maximize expected utility function to achieve our goal (maximize expected return under certain risk tolerance). The main conclusions drawn from this study are under certain conditions the security market …

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Absorptive And Refractive Optical Nonlinearities In Organic Molecules And Semiconductors, Davorin Peceli Jan 2013

Absorptive And Refractive Optical Nonlinearities In Organic Molecules And Semiconductors, Davorin Peceli

Electronic Theses and Dissertations

The main purpose of this dissertation to investigate photophysical properties, third order nonlinearity and free carrier absorption and refraction in organic materials and semiconductors. Special emphasis of this dissertation is on characterization techniques of molecules with enhanced intersystem crossing rate and study of different approaches of increasing triplet quantum yield in organic molecules. Both linear and nonlinear characterization methods are described. Linear spectroscopic characterization includes absorption, fluorescence, quantum yield, anisotropy, and singletoxygen generation measurements. Nonlinear characterization, performed by picosecond and femtosecond laser systems (single and double pump-probe and Z-scan measurements), includes measurements of the triplet quantum yields, excited-state absorption, two-photon …

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Training For Decision Making In Complex Environments: Instructional Methods And Individual Differences, Jessica Ray Jan 2013

Training For Decision Making In Complex Environments: Instructional Methods And Individual Differences, Jessica Ray

Electronic Theses and Dissertations

Increased technology reliance along with today’s global fast paced society has produced increasingly complex, dynamic operating environments in disciplines as diverse as the military, healthcare, and transportation. These complex human machine systems often place additional cognitive and metacognitive demands on the operator. Thus, there is a crucial need to develop training tools for all levels of operators in these dynamic systems. The current study was designed to empirically test the effects of four training methods on performance and mental model accuracy in a microworld simulation game. It was hypothesized that process-focused guidance targeting metacognitive level processes as well as combined …

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An Adhesive Vinyl-Acrylic Electrolyte And Electrode Binder For Lithium Batteries, Binh Tran Jan 2013

An Adhesive Vinyl-Acrylic Electrolyte And Electrode Binder For Lithium Batteries, Binh Tran

Electronic Theses and Dissertations

This dissertation describes a new vinyl-acrylic copolymer that displays great potential for applications in lithium ion batteries by enabling processes that are novel, faster, safer, and less costly than existing manufacturing methods. Overall, the works presented are based on tailored chemical synthesis directly applied to lithium ion battery manufacturing. Current manufacturing methods still have many flaws such as toxic processes and other time consuming if not costly steps. Understanding the chemistry of materials and processes related to battery manufacturing allows the design of techniques and methods that can ultimately improve the performance of existing batteries while reducing the cost. Chapter …

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Non-Degenerate Two Photon Gain In Bulk Gallium Arsenide, Brendan Turnbull Jan 2013

Non-Degenerate Two Photon Gain In Bulk Gallium Arsenide, Brendan Turnbull

Electronic Theses and Dissertations

The purpose of this thesis is to investigate the nonlinear phenomena known as doubly-stimulated, non-degenerate two-photon emission (ND-2PE) in Gallium Arsenide (GaAs). 2PE refers to the simultaneous emission of two-photons as electrons move from the conduction band in a direct gap semiconductor to the valence band. Following the same path for describing one-photon emission (1PE) we describe 2PE as a product of the irradiance, and the negative of the loss which in this case is two-photon absorption, , the negative coming from the population inversion. We attempt to observe 2PE by using a frequency non-degenerate pump-probe experiment in which a …

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Exchange Coupling In Molecular Magnets: Zero, One And Three Dimensions, Asma Amjad Jan 2013

Exchange Coupling In Molecular Magnets: Zero, One And Three Dimensions, Asma Amjad

Electronic Theses and Dissertations

Molecular magnets with different dimensionality, whether they are zero-dimensional singlemolecule magnets (SMM) or one-dimensional single-chain magnets (SCM) are very interesting, since they allow probing the fundamental aspects bordering quantum and classical physics at the nanoscale level. This dissertation covers experimental studies of two Mn-based exchangecoupled molecule-based magnets and two Co-based single-chain magnets, using both dc Halleffect magnetometry and electron paramagnet resonance (EPR) techniques. In these multidimensional systems, the spin of the molecule exhibits quantum mechanical behavior at low temperature. It is quite interesting to observe the effect of magnetic exchange interactions on the magnetic properties of various complexes; hence they …

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Nonparametric And Empirical Bayes Estimation Methods, Rida Benhaddou Jan 2013

Nonparametric And Empirical Bayes Estimation Methods, Rida Benhaddou

Electronic Theses and Dissertations

In the present dissertation, we investigate two different nonparametric models; empirical Bayes model and functional deconvolution model. In the case of the nonparametric empirical Bayes estimation, we carried out a complete minimax study. In particular, we derive minimax lower bounds for the risk of the nonparametric empirical Bayes estimator for a general conditional distribution. This result has never been obtained previously. In order to attain optimal convergence rates, we use a wavelet series based empirical Bayes estimator constructed in Pensky and Alotaibi (2005). We propose an adaptive version of this estimator using Lepski’s method and show that the estimator attains …

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Childhood Predictors In The Severity Of Combat Related Posttraumatic Stress Disorder Among Veterans With Combat Related Exposure, Michael Bermes Jan 2013

Childhood Predictors In The Severity Of Combat Related Posttraumatic Stress Disorder Among Veterans With Combat Related Exposure, Michael Bermes

Electronic Theses and Dissertations

Emerging research suggests that childhood adversities may increase both the risk and symptomology of posttraumatic stress disorder (PTSD) in our veteran population. Over 40% of our reintegrating military veterans return with significant mental health issues led by combatrelated PTSD. PTSD impacts veterans in numerous areas including unemployment, increased criminal justice involvement, increased treatment costs, divorce, co-morbid mental illness, greater levels of domestic violence, homelessness, high college dropout rates, suicide, and long term health problems. The purpose of this study is to investigate the impact of childhood adversities (abuse, neglect, and poverty) upon the severity of combat-related PTSD in veteran populations. …

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The Effect Of A Self-Monitoring Treatment Intervention Package On The Academic Productivity Behavior Of Three High School Students With Autism Spectrum Disorder, Patrick Craanen Jan 2013

The Effect Of A Self-Monitoring Treatment Intervention Package On The Academic Productivity Behavior Of Three High School Students With Autism Spectrum Disorder, Patrick Craanen

Electronic Theses and Dissertations

This study employed a multiple baseline across participants design to investigate the effect of a self-monitoring treatment intervention package (independent variable) consisting of a wristwatch that delivers timed vibrating and digital text prompts, a self-recording form, and a performance graphing worksheet, on the ability of three high school students with Autism Spectrum Disorder to self-monitor the academic productivity component behaviors (dependent variable) of homework assignment completion and submission rates, classroom-based work completion and submission rates, and accuracy and rate of documentation of academic tasks in their student planners. Students earned academic productivity composite scores reflecting the percentage of academic productivity …

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A Study Of Elementary Student Course Completion And Achievement In Virtual And Traditional Format Courses Within The Volusia County School District, Janet Garzia Jan 2013

A Study Of Elementary Student Course Completion And Achievement In Virtual And Traditional Format Courses Within The Volusia County School District, Janet Garzia

Electronic Theses and Dissertations

The focus of this research study was to determine how elementary students enrolled in virtual education classes performed on state assessments and final report card grades in Reading and Mathematics as compared with students enrolled in traditional classes, and to examine whether there was a difference in the successful course completion rates between the two groups. Five research questions guided this study concerning the relationship of successful course completion, final grades, and FCAT 2.0 achievement level scores and the variables of virtual and traditional education in the School District of Volusia County. This study is significant, as the movement of …

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Virtual Coaching Of Novice Science Educators To Support Students With Emotional And Behavioral Disorders, Dennis Garland Jan 2013

Virtual Coaching Of Novice Science Educators To Support Students With Emotional And Behavioral Disorders, Dennis Garland

Electronic Theses and Dissertations

Due to a multitude of convergent circumstances, students labeled in the disability category of emotional and behavioral disorders (EBD) experience high rates of academic and behavioral failure. Such failure frequently leads to the students’ dropping out of school, involvement in the judicial system, or a combination of those outcomes. Science is an academic content area that has the potential to enhance behavioral and academic success of students with EBD. Researchers, nonprofits, and business leaders have provided an impetus for nationwide reform in science education. Concurrently, a corpus of legislation has influenced the preparation of new teachers to use evidence-based teaching …

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An Examination Of The Relationship Between Marzano's Causal Teacher Evaluation Model And Student Achievement At Nine High Schools In A Large Suburban School District In Central Florida, Dana Jacobson Jan 2013

An Examination Of The Relationship Between Marzano's Causal Teacher Evaluation Model And Student Achievement At Nine High Schools In A Large Suburban School District In Central Florida, Dana Jacobson

Electronic Theses and Dissertations

This study focused on the relationship between student achievement and teacher evaluation during the first year of implementation of the Marzano Causal Teacher Evaluation model in a large suburban school district in Central Florida. The population included high school level teachers and students. Teacher evaluation and performance data were collected and analyzed for relationships using Spearman Rho and Chi-Square Analysis. Variables reviewed included: (a) Marzano‟s Causal Teacher Evaluation Model iObservation© protocol, (b) categorized teacher years of experience, (c) student growth scores based on a teacher‟s student success on statewide assessments as calculated using VAM or an administered pre- and posttest, …

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Properties Of High Energy Laser Light Transmission Through Large Core Optical Cables, Christopher Kennedy Jan 2013

Properties Of High Energy Laser Light Transmission Through Large Core Optical Cables, Christopher Kennedy

Electronic Theses and Dissertations

Laser induced damage is of interest in studying the transmission of large amounts of optical energy through step-index, large core multimode fibers. Optical fibers often have to be routed around objects when laser light is being transmitted between two locations which require the fiber to bend into a curve. Depending on how tight the bend is, this can result in transmission losses or even catastrophic damage when the energy density of the laser pulse exceeds the damage threshold of silica glass. The purpose of this study is to: Establish a minimum bend radius that would allow high energy (GW/cm2 ) …

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Extensions Of S-Spaces, Bernd Losert Jan 2013

Extensions Of S-Spaces, Bernd Losert

Electronic Theses and Dissertations

Given a convergence space X, a continuous action of a convergence semigroup S on X and a compactification Y of X, under what conditions on X and the action on X is it possible to extend the action to a continuous action on Y . Similarly, given a Cauchy space X, a Cauchy continuous action of a Cauchy semigroup S on X and a completion Y of X, under what conditions on X and the action on X is it possible to extend the action to a Cauchy continuous action on Y . We answer the first question for some …

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Beam Deflection, Matthias Münnich, Jan 2013

Beam Deflection, Matthias Münnich,

Electronic Theses and Dissertations

In order to fully understand the third order nonlinear optical response of materials under high irradiance excitation it is necessary to study the temporal and polarization dependence of nonlinear refraction and absorption. There are several existing approaches such as Z-scan and pump-probe techniques to determine those responses. As part of this work, these approaches will be briefly outlined before presenting beam deflection, applied from photothermal beam deflection, as an alternative experimental technique to determine the nonlinear refraction with its temporal and polarization dynamics. This technique measures the angle of the probe beam deflected via the index gradient of the material …

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Identification Of A Histidine Metal Ligand In The Arge-Encoded N-Acetyl-L-Ornithine Deacetylase From Escherichia Coli, Wade C. Mcgregor, Danuta M. Gillner, Sabina I. Swierczek, Dali Liu, Richard C. Holz Jan 2013

Identification Of A Histidine Metal Ligand In The Arge-Encoded N-Acetyl-L-Ornithine Deacetylase From Escherichia Coli, Wade C. Mcgregor, Danuta M. Gillner, Sabina I. Swierczek, Dali Liu, Richard C. Holz

Chemistry: Faculty Publications and Other Works

The H355A, H355K, H80A, and H80K mutant enzymes of the argE-encoded N-acetyl-L-ornithine deacetylase (ArgE) from Escherichia coli were prepared, however, only the H355A enzyme was found to be soluble. Kinetic analysis of the Co(II)-loaded H355A exhibited activity levels that were 380-fold less than Co(II)-loaded WT ArgE. Electronic absorption spectra of Co(II)-loaded H355A-ArgE indicate that the bound Co(II) ion resides in a distorted, five-coordinate environment and Isothermal Titration Calorimetry (ITC) data for Zn(II) binding to the H355A enzyme provided a dissociation constant (Kd) of 39 μM. A three-dimensional homology model of ArgE was generated using the …

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Functionalization Of Organic Semiconductor Crystals Via The Diels-Alder Reaction, Brittni A. Qualizza, Srividya Prasad, M. Paul Chiarelli, Jacob W. Ciszek Jan 2013

Functionalization Of Organic Semiconductor Crystals Via The Diels-Alder Reaction, Brittni A. Qualizza, Srividya Prasad, M. Paul Chiarelli, Jacob W. Ciszek

Chemistry: Faculty Publications and Other Works

A surface adlayer is generated on organic single crystals (tetracene and rubrene) using the site specific Diels–Alder reaction and a series of vapor phase dienophiles. X-ray photoelectron spectroscopy (XPS) confirms adsorption on the surfaces of tetracene and rubrene and mass spectrometry demonstrates the reaction’s applicability to a range of dienophiles.

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Effective Field Theory Approach To Gravitationally Induced Decoherence, M. P. Blencowe Jan 2013

Effective Field Theory Approach To Gravitationally Induced Decoherence, M. P. Blencowe

Dartmouth Scholarship

Adopting the viewpoint that the standard perturbative quantization of general relativity provides an effective description of quantum gravity that is valid at ordinary energies, we show that gravity as an environment induces the rapid decoherence of stationary matter superposition states when the energy differences in the superposition exceed the Planck energy scale.

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R.A. Fisher And The Foundations Of Statistical Biology, Michael Dietrich Jan 2013

R.A. Fisher And The Foundations Of Statistical Biology, Michael Dietrich

Dartmouth Scholarship

Chapter eight, addressing the topic of statistical biology and statistical methods in genetics.

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Exposing The Roots Of Low Self-Efficacy For Math: A Multi-Case Study Of Students In An Urban Middle School, Joshua Emmett, Daniel Hall, Corey Mckenna Jan 2013

Exposing The Roots Of Low Self-Efficacy For Math: A Multi-Case Study Of Students In An Urban Middle School, Joshua Emmett, Daniel Hall, Corey Mckenna

International Christian Community of Teacher Educators Journal

This multi-case study of historically low-performing 7th grade students in a math class at an urban middle school employed a theoretical framework based upon Bandura’s Social Cognitive Theory to discover the causes of low self-efficacy for math. The study utilized a cross-case analysis of four students who demonstrated varying degrees of self-efficacy. To serve students similarly situated, Christian teachers need to know what these students are experiencing and an understanding of the causes of low self-efficacy can inform their professional practice. Christian teacher educators can also benefit from understanding the context into which teachers of such students will serve so …

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Examining The Effects Of Self-Regulated Strategy Development In Combination With Video Self-Modeling On Writing By Third Grade Students With Learning Disabilities, Katie Miller Jan 2013

Examining The Effects Of Self-Regulated Strategy Development In Combination With Video Self-Modeling On Writing By Third Grade Students With Learning Disabilities, Katie Miller

Electronic Theses and Dissertations

This research examined the effects of self-regulated strategy development (SRSD), a cognitive strategy instructional method, on opinion writing by third grade students with learning disabilities. A video self-modeling (VSM) component was added to the SRSD method. A multiple probe across participants, single-subject design was used to determine the effectiveness of the SRSD instructional strategy, (POW + TREE), in combination with video self-modeling. Data from various components of writing, including essay elements, length of responses, time spent writing, and overall writing quality, were collected and assessed to determine the effectiveness of the intervention. All students who received the intervention improved their …

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Dynamic Feedback Pulse Shaping For High Power Chirped Pulse Amplification System, Dat Nguyen Jan 2013

Dynamic Feedback Pulse Shaping For High Power Chirped Pulse Amplification System, Dat Nguyen

Electronic Theses and Dissertations

The topic of this proposal is the development of high peak power laser sources with a focus on linearly chirped pulse laser sources. In the past decade chirped optical pulses have found a plethora of applications such as photonic analog-to-digital conversion, optical coherence tomography, laser ranging, etc. This dissertation analyzes the aforementioned applications of linearly chirped pulses and their technical requirements, as well as the performance of previously demonstrated parabolic pulse shaping approaches. The experimental research addresses the topic of parabolic pulse generation in two distinct ways. First, pulse shaping technique involving a time domain approach is presented, that results …

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Accelerated Life Model With Various Types Of Censored Data, Kathryn Pridemore Jan 2013

Accelerated Life Model With Various Types Of Censored Data, Kathryn Pridemore

Electronic Theses and Dissertations

The Accelerated Life Model is one of the most commonly used tools in the analysis of survival data which are frequently encountered in medical research and reliability studies. In these types of studies we often deal with complicated data sets for which we cannot observe the complete data set in practical situations due to censoring. Such difficulties are particularly apparent by the fact that there is little work in statistical literature on the Accelerated Life Model for complicated types of censored data sets, such as doubly censored data, interval censored data, and partly interval censored data. In this work, we …

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Pre-Service Elementary Teachers' Self-Efficacy Beliefs About Science Using Critical Incident Technique: A Case Study Approach., Meera Ravikumar Jan 2013

Pre-Service Elementary Teachers' Self-Efficacy Beliefs About Science Using Critical Incident Technique: A Case Study Approach., Meera Ravikumar

Electronic Theses and Dissertations

The primary goal of this case study using qualitative and quantitative methods was to investigate pre-service elementary teachers’ initial self-efficacy beliefs about science and science teaching by exploring the K-12 science experiences of these prospective elementary teachers. Of the 108 participants who completed the science teaching efficacy belief survey (STEBI-B) (Enochs & Riggs, 1990), 12 participants were selected to be interviewed using Flanagan’s (1954) critical incident technique. Participants were asked to share their past positive and negative incidents during their K- 12 years with science and science teachers. They were also asked to report how past incidents affected them at …

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The Impact Of Voluntary Pre-Kindergarten On The Academic Achievement And Kindergarten Readiness Of Students In A Large Suburban School District, Jordan Rodriguez Jan 2013

The Impact Of Voluntary Pre-Kindergarten On The Academic Achievement And Kindergarten Readiness Of Students In A Large Suburban School District, Jordan Rodriguez

Electronic Theses and Dissertations

Throughout the United States, state governments are allocating millions of dollars to support Voluntary Pre-Kindergarten (VPK) programs. Recent research has indicated that students that participate in VPK demonstrate higher academic achievement scores across a number of subject areas. Moreover, VPK participants are more likely to enter primary school on grade level, which in turn leads to a reduction in grade retention. Studies have indicated that although all students that participate in VPK programs benefit from such programs, minority students and students that come from low-socioeconomic backgrounds benefit at an even higher level. The intent of this study was to determine …

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Wavelength Scale Resonant Structures For Integrated Photonic Applications, Matthew Weed Jan 2013

Wavelength Scale Resonant Structures For Integrated Photonic Applications, Matthew Weed

Electronic Theses and Dissertations

An approach to integrated frequency-comb filtering is presented, building from a background in photonic crystal cavity design and fabrication. Previous work in the development of quantum information processing devices through integrated photonic crystals consists of photonic band gap engineering and methods of on-chip photon transfer. This work leads directly to research into coupled-resonator optical waveguides which stands as a basis for the primary line of investigation. These coupled cavity systems offer the designer slow light propagation which increases photon lifetime, reduces size limitations toward on-chip integration, and offers enhanced light-matter interaction. A unique resonant structure explained by various numerical models …

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