Longitudinal Investigation Of The Curricular Effect: An Analysis Of Student Learning Outcomes From The Liecal Project In The United States,
2011
University of Delaware
Longitudinal Investigation Of The Curricular Effect: An Analysis Of Student Learning Outcomes From The Liecal Project In The United States, Jinfa Cai, Ning Wang, John Moyer, Chuang Wang, Bikai Nie
Mathematics, Statistics and Computer Science Faculty Research and Publications
In this article, we present the results from a longitudinal examination of the impact of a Standards-based or reform mathematics curriculum (called CMP) and traditional mathematics curricula (called non-CMP) on students’ learning of algebra using various outcome measures. Findings include the following: (1) students did not sacrifice basic mathematical skills if they are taught using a Standards-based or reform mathematics curriculum like CMP; (2) African American students experienced greater gain in symbol manipulation when they used a traditional curriculum; (3) the use of either the CMP or a non-CMP curriculum improved the mathematics achievement of all students, including …
Essays On Hedge Fund Replication: Methodological Assessment And Development Of The Factor Approach, Nonlinear Modeling And Policy Perspectives,
2011
Bentley University
Essays On Hedge Fund Replication: Methodological Assessment And Development Of The Factor Approach, Nonlinear Modeling And Policy Perspectives, Guillaume Weisang
2011
This dissertation is concerned with hedge fund replication, a subject of a practical and theoretical importance, both from an investment and a risk management point of view. One of our goals is to extend known methodologies in order to enhance our understanding of an industry that is known for its secrecy and its lack of transparency. A second goal is to contribute to the quantitative finance literature with improved techniques for hedge fund replication. Hedge fund replication (HFR) is approached from the methodological as well as from practical and regulatory perspectives. The first two chapters provide the motivation and the …
Angiogenic Biomarkers For Risk Stratification In Women With Suspected Preeclampsia,
2011
George Washington University
Angiogenic Biomarkers For Risk Stratification In Women With Suspected Preeclampsia, Andreea Balan, Heather Young, Linda Ojo, Jennifer Keller, Sharon Maynard
Epidemiology Faculty Posters and Presentations
This poster presents the results of a single-center prospective cohort study of 315 pregnant women who presented to George Washington University Hospital Labor and Delivery service with a clinical suspicion of preeclampsia between February 2007 and November 2011. Informed consent was obtained. Baseline demographic information and medical history was collected on each patient including maternal age, ethnicity, body mass index, tobacco and other substance use, gestational age, medical problems and obstetric history. Serum samples were obtained from each enrolled subject within 24 hours of admission, and sFlt1, PlGF and sEng ELISA assays were performed in duplicate by a blinded laboratory …
Balanced Pod For Model Reduction Of Linear Pde Systems: Convergence Theory,
2011
Missouri University of Science and Technology
Balanced Pod For Model Reduction Of Linear Pde Systems: Convergence Theory, John R. Singler
Mathematics and Statistics Faculty Research & Creative Works
We consider convergence analysis for a model reduction algorithm for a class of linear infinite dimensional systems. The algorithm computes an approximate balanced truncation of the system using solution snapshots of specific linear infinite dimensional differential equations. The algorithm is related to the proper orthogonal decomposition, and it was first proposed for systems of ordinary differential equations by Rowley (Int. J. Bifurc. Chaos Appl. Sci. Eng. 15(3), 997-1013, 2005). For the convergence analysis, we consider the algorithm in terms of the Hankel operator of the system, rather than the product of the system Gramians as originally proposed by Rowley. For …
Balanced Pod For Linear Pde Robust Control Computations,
2011
Missouri University of Science and Technology
Balanced Pod For Linear Pde Robust Control Computations, John R. Singler, Belinda A. Batten
Mathematics and Statistics Faculty Research & Creative Works
A mathematical model of a physical system is never perfect; therefore, robust control laws are necessary for guaranteed stabilization of the nominal model and also "nearby" systems, including hopefully the actual physical system. We consider the computation of a robust control law for large-scale nite dimensional linear systems and a class of linear distributed parameter systems. The controller is robust with respect to left coprime factor perturbations of the nominal system. We present an algorithm based on balanced proper orthogonal decomposition to compute the nonstandard features of this robust control law. Convergence theory is given, and numerical results are presented …
A Model Based Feedback Controller For Wing-Twist Via Piezoceramic Actuation,
2011
Missouri University of Science and Technology
A Model Based Feedback Controller For Wing-Twist Via Piezoceramic Actuation, John R. Singler, Belinda A. Batten
Mathematics and Statistics Faculty Research & Creative Works
In this paper we present a model for a rubber plate with piezoceramic actuators to represent a bioinspired flexible wing. Using a Galerkin based finite element approximation to the system, we compute a linear quadratic based tracking control for piezoelectric actuators placed along both leading and trailing edges. Using these piezoceramic devices, we demonstrate the effectiveness of model based feedback control in achieving a desired wing tip position; this modified shape is analogous to aircraft roll moment generation via wing twist.
Convergent Snapshot Algorithms For Infinite-Dimensional Lyapunov Equations,
2011
Missouri University of Science and Technology
Convergent Snapshot Algorithms For Infinite-Dimensional Lyapunov Equations, John R. Singler
Mathematics and Statistics Faculty Research & Creative Works
We consider two algorithms to approximate the solution Z of a class of stable operator Lyapunov equations of the form AZ + ZA* + BB* = 0. The algorithms utilize time snapshots of solutions of certain linear infinite-dimensional differential equations to construct the approximations. Matrix approximations of the operators a and B are not required and the algorithms are applicable as long as the rank of B is relatively small. The first algorithm produces an optimal low-rank approximate solution using proper orthogonal decomposition. The second algorithm approximates the product of the solution with a few vectors and can be implemented …
Sub-Supersolution Method In Variational Inequalities With Multivalued Operators Given By Integrals,
2011
Missouri University of Science and Technology
Sub-Supersolution Method In Variational Inequalities With Multivalued Operators Given By Integrals, Vy Khoi Le
Mathematics and Statistics Faculty Research & Creative Works
No abstract provided.
Self Learning Strategies For Experimental Design And Response Surface Optimization,
2011
Wayne State University
Self Learning Strategies For Experimental Design And Response Surface Optimization, Adel Alaeddini
Wayne State University Dissertations
Most preset RSM designs offer ease of implementation and good performance over a wide range of process and design optimization applications. These designs often lack the ability to adapt the design based on the characteristics of application and experimental space so as to reduce the number of experiments necessary. Hence, they are not cost effective for applications where the cost of experimentation is high or when the experimentation resources are limited. In this dissertation, we present a number of self-learning strategies for optimization of different types of response surfaces for industrial experiments with noise, high experimentation cost, and requiring high …
Analysis Of The Theory Of Abstraction,
2011
SelectedWorks
Analysis Of The Theory Of Abstraction, Subhajit Kumar Ganguly
Subhajit Kumar Ganguly
In this paper,a few more implications of the laws of physical transactions as per the Theory of Abstraction are dealt with.Analysis of these implications suggests the existence of `hidden` mass and `hidden` energy in a given physical transaction.Trajectory - examination of such possible transport is carried out. Relativistic cyclist phenomena are also dealt with in this paper.
Statistical Trends In Women's Participation In Science: Commentary On Valla And Ceci,
2011
SelectedWorks
Statistical Trends In Women's Participation In Science: Commentary On Valla And Ceci, Cathy Kessel, Donna J. Nelson
Cathy Kessel
“Can Sex Differences in Science Be Tied to the Long Reach of Prenatal Hormones?” describes women's participation in science and claims that the increases in quantitative fields (e.g., mathematics, engineering, and physical sciences) are an exception to the statement that “Women’s growth in the scientific workforce has been meteoric over the past 40 years.” We disagree and present statistics demonstrating a more positive view of the increase of the number of women in quantitative fields.
Is There Any Interdependence Between Economic Growth And Human Development? Evidence From Indian States,
2011
National Institute of Public Finance and Policy (NIPFP), New Delhi
Is There Any Interdependence Between Economic Growth And Human Development? Evidence From Indian States, Sacchidananda Mukherjee Dr., Debashis Chakraborty
Sacchidananda Mukherjee
This paper attempts to analyse the evolving relationship between economic growth and human development for 28 major Indian states during four time periods ranging over the last two decades, viz. 1983, 1993, 1999-2000 and 2004-05. The objective of this exercise is to understand whether per capita income (as an indicator of economic growth) is influenced by human development and vice versa across Indian states. The National Human Development Report 2001 methodology has been applied for constructing the Human Development Index (HDI) for the Indian states. The HDI has been constructed separately for rural and urban areas for each of the …
Cv,
2011
University of Stavanger
International Diversification: An Extreme Value Approach,
2011
Columbia University
International Diversification: An Extreme Value Approach, Lorán Chollete, Victor De La Peña, Ching-Chih Lu
Lorán Chollete
No abstract provided.
Statistics In Law: Bad Inferences & Uncommon Sense,
2011
California Superior Court (San Francisco)
Statistics In Law: Bad Inferences & Uncommon Sense, Curtis E.A. Karnow
Curtis E.A. Karnow
A review of classic fallacies in statistics and probability in the courts. The article briefly, and in plain English, provides an introduction to probability theory, and randomness.
Prevalence Of Piscine Myocarditis Virus (Pmcv) In Marine Fish Species,
2011
Norwegian Veterinary Institute
Prevalence Of Piscine Myocarditis Virus (Pmcv) In Marine Fish Species, Torstein Tengs Dr.
Dr. Torstein Tengs
No abstract.
Dose-Finding For Multi-Drug Combinations,
2011
University of Virginia
Dose-Finding For Multi-Drug Combinations, Nolan A. Wages
Nolan A. Wages
No abstract provided.
Flexible Distributed Lag Models Using Random Functions With Application To Estimating Mortality Displacement From Heat-Related Deaths,
2011
Johns Hopkins University
Flexible Distributed Lag Models Using Random Functions With Application To Estimating Mortality Displacement From Heat-Related Deaths, Roger D. Peng, Matthew J. Heaton
Roger D. Peng
No abstract provided.
Static Versus Dynamic Topology Of Complex Communications Network During Organizational Crisis,
2011
The University of Sydney
Static Versus Dynamic Topology Of Complex Communications Network During Organizational Crisis, Shahadat Uddin
Shahadat Uddin
No abstract provided.
Power-Law Behavior In Complex Organizational Communication Networks During Crisis,
2011
The University of Sydney
Power-Law Behavior In Complex Organizational Communication Networks During Crisis, Shahadat Uddin
Shahadat Uddin
No abstract provided.
